TextView.java revision 22a167cac8f585ffd3ca73e40b82a26c1e09df11
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.widget; 18 19import static android.view.accessibility.AccessibilityNodeInfo.EXTRA_DATA_TEXT_CHARACTER_LOCATION_ARG_LENGTH; 20import static android.view.accessibility.AccessibilityNodeInfo.EXTRA_DATA_TEXT_CHARACTER_LOCATION_ARG_START_INDEX; 21import static android.view.accessibility.AccessibilityNodeInfo.EXTRA_DATA_TEXT_CHARACTER_LOCATION_KEY; 22import static android.view.inputmethod.CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION; 23 24import android.R; 25import android.annotation.CheckResult; 26import android.annotation.ColorInt; 27import android.annotation.DrawableRes; 28import android.annotation.FloatRange; 29import android.annotation.IntDef; 30import android.annotation.NonNull; 31import android.annotation.Nullable; 32import android.annotation.Size; 33import android.annotation.StringRes; 34import android.annotation.StyleRes; 35import android.annotation.XmlRes; 36import android.app.Activity; 37import android.app.assist.AssistStructure; 38import android.content.ClipData; 39import android.content.ClipDescription; 40import android.content.ClipboardManager; 41import android.content.Context; 42import android.content.Intent; 43import android.content.UndoManager; 44import android.content.res.ColorStateList; 45import android.content.res.CompatibilityInfo; 46import android.content.res.Configuration; 47import android.content.res.Resources; 48import android.content.res.TypedArray; 49import android.content.res.XmlResourceParser; 50import android.graphics.BaseCanvas; 51import android.graphics.Canvas; 52import android.graphics.Insets; 53import android.graphics.Paint; 54import android.graphics.Path; 55import android.graphics.PorterDuff; 56import android.graphics.Rect; 57import android.graphics.RectF; 58import android.graphics.Typeface; 59import android.graphics.drawable.Drawable; 60import android.graphics.fonts.FontVariationAxis; 61import android.icu.text.DecimalFormatSymbols; 62import android.os.AsyncTask; 63import android.os.Build.VERSION_CODES; 64import android.os.Bundle; 65import android.os.LocaleList; 66import android.os.Parcel; 67import android.os.Parcelable; 68import android.os.ParcelableParcel; 69import android.os.SystemClock; 70import android.provider.Settings; 71import android.text.BoringLayout; 72import android.text.DynamicLayout; 73import android.text.Editable; 74import android.text.GetChars; 75import android.text.GraphicsOperations; 76import android.text.InputFilter; 77import android.text.InputType; 78import android.text.Layout; 79import android.text.ParcelableSpan; 80import android.text.Selection; 81import android.text.SpanWatcher; 82import android.text.Spannable; 83import android.text.SpannableStringBuilder; 84import android.text.Spanned; 85import android.text.SpannedString; 86import android.text.StaticLayout; 87import android.text.TextDirectionHeuristic; 88import android.text.TextDirectionHeuristics; 89import android.text.TextPaint; 90import android.text.TextUtils; 91import android.text.TextUtils.TruncateAt; 92import android.text.TextWatcher; 93import android.text.method.AllCapsTransformationMethod; 94import android.text.method.ArrowKeyMovementMethod; 95import android.text.method.DateKeyListener; 96import android.text.method.DateTimeKeyListener; 97import android.text.method.DialerKeyListener; 98import android.text.method.DigitsKeyListener; 99import android.text.method.KeyListener; 100import android.text.method.LinkMovementMethod; 101import android.text.method.MetaKeyKeyListener; 102import android.text.method.MovementMethod; 103import android.text.method.PasswordTransformationMethod; 104import android.text.method.SingleLineTransformationMethod; 105import android.text.method.TextKeyListener; 106import android.text.method.TimeKeyListener; 107import android.text.method.TransformationMethod; 108import android.text.method.TransformationMethod2; 109import android.text.method.WordIterator; 110import android.text.style.CharacterStyle; 111import android.text.style.ClickableSpan; 112import android.text.style.ParagraphStyle; 113import android.text.style.SpellCheckSpan; 114import android.text.style.SuggestionSpan; 115import android.text.style.URLSpan; 116import android.text.style.UpdateAppearance; 117import android.text.util.Linkify; 118import android.util.AttributeSet; 119import android.util.DisplayMetrics; 120import android.util.IntArray; 121import android.util.Log; 122import android.util.SparseIntArray; 123import android.util.TypedValue; 124import android.view.AccessibilityIterators.TextSegmentIterator; 125import android.view.ActionMode; 126import android.view.Choreographer; 127import android.view.ContextMenu; 128import android.view.DragEvent; 129import android.view.Gravity; 130import android.view.HapticFeedbackConstants; 131import android.view.InputDevice; 132import android.view.KeyCharacterMap; 133import android.view.KeyEvent; 134import android.view.MotionEvent; 135import android.view.PointerIcon; 136import android.view.View; 137import android.view.ViewConfiguration; 138import android.view.ViewDebug; 139import android.view.ViewGroup.LayoutParams; 140import android.view.ViewHierarchyEncoder; 141import android.view.ViewParent; 142import android.view.ViewRootImpl; 143import android.view.ViewStructure; 144import android.view.ViewTreeObserver; 145import android.view.accessibility.AccessibilityEvent; 146import android.view.accessibility.AccessibilityManager; 147import android.view.accessibility.AccessibilityNodeInfo; 148import android.view.animation.AnimationUtils; 149import android.view.autofill.AutofillManager; 150import android.view.autofill.AutofillValue; 151import android.view.inputmethod.BaseInputConnection; 152import android.view.inputmethod.CompletionInfo; 153import android.view.inputmethod.CorrectionInfo; 154import android.view.inputmethod.CursorAnchorInfo; 155import android.view.inputmethod.EditorInfo; 156import android.view.inputmethod.ExtractedText; 157import android.view.inputmethod.ExtractedTextRequest; 158import android.view.inputmethod.InputConnection; 159import android.view.inputmethod.InputMethodManager; 160import android.view.textclassifier.TextClassificationManager; 161import android.view.textclassifier.TextClassifier; 162import android.view.textservice.SpellCheckerSubtype; 163import android.view.textservice.TextServicesManager; 164import android.widget.RemoteViews.RemoteView; 165 166import com.android.internal.annotations.VisibleForTesting; 167import com.android.internal.logging.MetricsLogger; 168import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 169import com.android.internal.util.FastMath; 170import com.android.internal.widget.EditableInputConnection; 171 172import libcore.util.EmptyArray; 173 174import org.xmlpull.v1.XmlPullParserException; 175 176import java.io.IOException; 177import java.lang.annotation.Retention; 178import java.lang.annotation.RetentionPolicy; 179import java.lang.ref.WeakReference; 180import java.util.ArrayList; 181import java.util.Arrays; 182import java.util.Locale; 183 184/** 185 * A user interface element that displays text to the user. 186 * To provide user-editable text, see {@link EditText}. 187 * <p> 188 * The following code sample shows a typical use, with an XML layout 189 * and code to modify the contents of the text view: 190 * </p> 191 192 * <pre> 193 * <LinearLayout 194 xmlns:android="http://schemas.android.com/apk/res/android" 195 android:layout_width="match_parent" 196 android:layout_height="match_parent"> 197 * <TextView 198 * android:id="@+id/text_view_id" 199 * android:layout_height="wrap_content" 200 * android:layout_width="wrap_content" 201 * android:text="@string/hello" /> 202 * </LinearLayout> 203 * </pre> 204 * <p> 205 * This code sample demonstrates how to modify the contents of the text view 206 * defined in the previous XML layout: 207 * </p> 208 * <pre> 209 * public class MainActivity extends Activity { 210 * 211 * protected void onCreate(Bundle savedInstanceState) { 212 * super.onCreate(savedInstanceState); 213 * setContentView(R.layout.activity_main); 214 * final TextView helloTextView = (TextView) findViewById(R.id.text_view_id); 215 * helloTextView.setText(R.string.user_greeting); 216 * } 217 * } 218 * </pre> 219 * <p> 220 * To customize the appearance of TextView, see <a href="https://developer.android.com/guide/topics/ui/themes.html">Styles and Themes</a>. 221 * </p> 222 * <p> 223 * <b>XML attributes</b> 224 * <p> 225 * See {@link android.R.styleable#TextView TextView Attributes}, 226 * {@link android.R.styleable#View View Attributes} 227 * 228 * @attr ref android.R.styleable#TextView_text 229 * @attr ref android.R.styleable#TextView_bufferType 230 * @attr ref android.R.styleable#TextView_hint 231 * @attr ref android.R.styleable#TextView_textColor 232 * @attr ref android.R.styleable#TextView_textColorHighlight 233 * @attr ref android.R.styleable#TextView_textColorHint 234 * @attr ref android.R.styleable#TextView_textAppearance 235 * @attr ref android.R.styleable#TextView_textColorLink 236 * @attr ref android.R.styleable#TextView_textSize 237 * @attr ref android.R.styleable#TextView_textScaleX 238 * @attr ref android.R.styleable#TextView_fontFamily 239 * @attr ref android.R.styleable#TextView_typeface 240 * @attr ref android.R.styleable#TextView_textStyle 241 * @attr ref android.R.styleable#TextView_cursorVisible 242 * @attr ref android.R.styleable#TextView_maxLines 243 * @attr ref android.R.styleable#TextView_maxHeight 244 * @attr ref android.R.styleable#TextView_lines 245 * @attr ref android.R.styleable#TextView_height 246 * @attr ref android.R.styleable#TextView_minLines 247 * @attr ref android.R.styleable#TextView_minHeight 248 * @attr ref android.R.styleable#TextView_maxEms 249 * @attr ref android.R.styleable#TextView_maxWidth 250 * @attr ref android.R.styleable#TextView_ems 251 * @attr ref android.R.styleable#TextView_width 252 * @attr ref android.R.styleable#TextView_minEms 253 * @attr ref android.R.styleable#TextView_minWidth 254 * @attr ref android.R.styleable#TextView_gravity 255 * @attr ref android.R.styleable#TextView_scrollHorizontally 256 * @attr ref android.R.styleable#TextView_password 257 * @attr ref android.R.styleable#TextView_singleLine 258 * @attr ref android.R.styleable#TextView_selectAllOnFocus 259 * @attr ref android.R.styleable#TextView_includeFontPadding 260 * @attr ref android.R.styleable#TextView_maxLength 261 * @attr ref android.R.styleable#TextView_shadowColor 262 * @attr ref android.R.styleable#TextView_shadowDx 263 * @attr ref android.R.styleable#TextView_shadowDy 264 * @attr ref android.R.styleable#TextView_shadowRadius 265 * @attr ref android.R.styleable#TextView_autoLink 266 * @attr ref android.R.styleable#TextView_linksClickable 267 * @attr ref android.R.styleable#TextView_numeric 268 * @attr ref android.R.styleable#TextView_digits 269 * @attr ref android.R.styleable#TextView_phoneNumber 270 * @attr ref android.R.styleable#TextView_inputMethod 271 * @attr ref android.R.styleable#TextView_capitalize 272 * @attr ref android.R.styleable#TextView_autoText 273 * @attr ref android.R.styleable#TextView_editable 274 * @attr ref android.R.styleable#TextView_freezesText 275 * @attr ref android.R.styleable#TextView_ellipsize 276 * @attr ref android.R.styleable#TextView_drawableTop 277 * @attr ref android.R.styleable#TextView_drawableBottom 278 * @attr ref android.R.styleable#TextView_drawableRight 279 * @attr ref android.R.styleable#TextView_drawableLeft 280 * @attr ref android.R.styleable#TextView_drawableStart 281 * @attr ref android.R.styleable#TextView_drawableEnd 282 * @attr ref android.R.styleable#TextView_drawablePadding 283 * @attr ref android.R.styleable#TextView_drawableTint 284 * @attr ref android.R.styleable#TextView_drawableTintMode 285 * @attr ref android.R.styleable#TextView_lineSpacingExtra 286 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 287 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 288 * @attr ref android.R.styleable#TextView_inputType 289 * @attr ref android.R.styleable#TextView_imeOptions 290 * @attr ref android.R.styleable#TextView_privateImeOptions 291 * @attr ref android.R.styleable#TextView_imeActionLabel 292 * @attr ref android.R.styleable#TextView_imeActionId 293 * @attr ref android.R.styleable#TextView_editorExtras 294 * @attr ref android.R.styleable#TextView_elegantTextHeight 295 * @attr ref android.R.styleable#TextView_letterSpacing 296 * @attr ref android.R.styleable#TextView_fontFeatureSettings 297 * @attr ref android.R.styleable#TextView_breakStrategy 298 * @attr ref android.R.styleable#TextView_hyphenationFrequency 299 * @attr ref android.R.styleable#TextView_autoSizeTextType 300 * @attr ref android.R.styleable#TextView_autoSizeMinTextSize 301 * @attr ref android.R.styleable#TextView_autoSizeMaxTextSize 302 * @attr ref android.R.styleable#TextView_autoSizeStepGranularity 303 * @attr ref android.R.styleable#TextView_autoSizePresetSizes 304 */ 305@RemoteView 306public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 307 static final String LOG_TAG = "TextView"; 308 static final boolean DEBUG_EXTRACT = false; 309 static final boolean DEBUG_AUTOFILL = false; 310 private static final float[] TEMP_POSITION = new float[2]; 311 312 // Enum for the "typeface" XML parameter. 313 // TODO: How can we get this from the XML instead of hardcoding it here? 314 private static final int SANS = 1; 315 private static final int SERIF = 2; 316 private static final int MONOSPACE = 3; 317 318 // Enum for the "ellipsize" XML parameter. 319 private static final int ELLIPSIZE_NOT_SET = -1; 320 private static final int ELLIPSIZE_NONE = 0; 321 private static final int ELLIPSIZE_START = 1; 322 private static final int ELLIPSIZE_MIDDLE = 2; 323 private static final int ELLIPSIZE_END = 3; 324 private static final int ELLIPSIZE_MARQUEE = 4; 325 326 // Bitfield for the "numeric" XML parameter. 327 // TODO: How can we get this from the XML instead of hardcoding it here? 328 private static final int SIGNED = 2; 329 private static final int DECIMAL = 4; 330 331 /** 332 * Draw marquee text with fading edges as usual 333 */ 334 private static final int MARQUEE_FADE_NORMAL = 0; 335 336 /** 337 * Draw marquee text as ellipsize end while inactive instead of with the fade. 338 * (Useful for devices where the fade can be expensive if overdone) 339 */ 340 private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1; 341 342 /** 343 * Draw marquee text with fading edges because it is currently active/animating. 344 */ 345 private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2; 346 347 private static final int LINES = 1; 348 private static final int EMS = LINES; 349 private static final int PIXELS = 2; 350 351 private static final RectF TEMP_RECTF = new RectF(); 352 353 /** @hide */ 354 static final int VERY_WIDE = 1024 * 1024; // XXX should be much larger 355 private static final int ANIMATED_SCROLL_GAP = 250; 356 357 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 358 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 359 360 private static final int CHANGE_WATCHER_PRIORITY = 100; 361 362 // New state used to change background based on whether this TextView is multiline. 363 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 364 365 // Accessibility action to share selected text. 366 private static final int ACCESSIBILITY_ACTION_SHARE = 0x10000000; 367 368 /** 369 * @hide 370 */ 371 // Accessibility action start id for "process text" actions. 372 static final int ACCESSIBILITY_ACTION_PROCESS_TEXT_START_ID = 0x10000100; 373 374 /** 375 * @hide 376 */ 377 static final int PROCESS_TEXT_REQUEST_CODE = 100; 378 379 /** 380 * Return code of {@link #doKeyDown}. 381 */ 382 private static final int KEY_EVENT_NOT_HANDLED = 0; 383 private static final int KEY_EVENT_HANDLED = -1; 384 private static final int KEY_DOWN_HANDLED_BY_KEY_LISTENER = 1; 385 private static final int KEY_DOWN_HANDLED_BY_MOVEMENT_METHOD = 2; 386 387 private static final int FLOATING_TOOLBAR_SELECT_ALL_REFRESH_DELAY = 500; 388 389 // System wide time for last cut, copy or text changed action. 390 static long sLastCutCopyOrTextChangedTime; 391 392 private ColorStateList mTextColor; 393 private ColorStateList mHintTextColor; 394 private ColorStateList mLinkTextColor; 395 @ViewDebug.ExportedProperty(category = "text") 396 private int mCurTextColor; 397 private int mCurHintTextColor; 398 private boolean mFreezesText; 399 400 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 401 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 402 403 private float mShadowRadius, mShadowDx, mShadowDy; 404 private int mShadowColor; 405 406 private boolean mPreDrawRegistered; 407 private boolean mPreDrawListenerDetached; 408 409 private TextClassifier mTextClassifier; 410 411 // A flag to prevent repeated movements from escaping the enclosing text view. The idea here is 412 // that if a user is holding down a movement key to traverse text, we shouldn't also traverse 413 // the view hierarchy. On the other hand, if the user is using the movement key to traverse 414 // views (i.e. the first movement was to traverse out of this view, or this view was traversed 415 // into by the user holding the movement key down) then we shouldn't prevent the focus from 416 // changing. 417 private boolean mPreventDefaultMovement; 418 419 private TextUtils.TruncateAt mEllipsize; 420 421 static class Drawables { 422 static final int LEFT = 0; 423 static final int TOP = 1; 424 static final int RIGHT = 2; 425 static final int BOTTOM = 3; 426 427 static final int DRAWABLE_NONE = -1; 428 static final int DRAWABLE_RIGHT = 0; 429 static final int DRAWABLE_LEFT = 1; 430 431 final Rect mCompoundRect = new Rect(); 432 433 final Drawable[] mShowing = new Drawable[4]; 434 435 ColorStateList mTintList; 436 PorterDuff.Mode mTintMode; 437 boolean mHasTint; 438 boolean mHasTintMode; 439 440 Drawable mDrawableStart, mDrawableEnd, mDrawableError, mDrawableTemp; 441 Drawable mDrawableLeftInitial, mDrawableRightInitial; 442 443 boolean mIsRtlCompatibilityMode; 444 boolean mOverride; 445 446 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 447 mDrawableSizeStart, mDrawableSizeEnd, mDrawableSizeError, mDrawableSizeTemp; 448 449 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 450 mDrawableHeightStart, mDrawableHeightEnd, mDrawableHeightError, mDrawableHeightTemp; 451 452 int mDrawablePadding; 453 454 int mDrawableSaved = DRAWABLE_NONE; 455 456 public Drawables(Context context) { 457 final int targetSdkVersion = context.getApplicationInfo().targetSdkVersion; 458 mIsRtlCompatibilityMode = targetSdkVersion < VERSION_CODES.JELLY_BEAN_MR1 459 || !context.getApplicationInfo().hasRtlSupport(); 460 mOverride = false; 461 } 462 463 /** 464 * @return {@code true} if this object contains metadata that needs to 465 * be retained, {@code false} otherwise 466 */ 467 public boolean hasMetadata() { 468 return mDrawablePadding != 0 || mHasTintMode || mHasTint; 469 } 470 471 /** 472 * Updates the list of displayed drawables to account for the current 473 * layout direction. 474 * 475 * @param layoutDirection the current layout direction 476 * @return {@code true} if the displayed drawables changed 477 */ 478 public boolean resolveWithLayoutDirection(int layoutDirection) { 479 final Drawable previousLeft = mShowing[Drawables.LEFT]; 480 final Drawable previousRight = mShowing[Drawables.RIGHT]; 481 482 // First reset "left" and "right" drawables to their initial values 483 mShowing[Drawables.LEFT] = mDrawableLeftInitial; 484 mShowing[Drawables.RIGHT] = mDrawableRightInitial; 485 486 if (mIsRtlCompatibilityMode) { 487 // Use "start" drawable as "left" drawable if the "left" drawable was not defined 488 if (mDrawableStart != null && mShowing[Drawables.LEFT] == null) { 489 mShowing[Drawables.LEFT] = mDrawableStart; 490 mDrawableSizeLeft = mDrawableSizeStart; 491 mDrawableHeightLeft = mDrawableHeightStart; 492 } 493 // Use "end" drawable as "right" drawable if the "right" drawable was not defined 494 if (mDrawableEnd != null && mShowing[Drawables.RIGHT] == null) { 495 mShowing[Drawables.RIGHT] = mDrawableEnd; 496 mDrawableSizeRight = mDrawableSizeEnd; 497 mDrawableHeightRight = mDrawableHeightEnd; 498 } 499 } else { 500 // JB-MR1+ normal case: "start" / "end" drawables are overriding "left" / "right" 501 // drawable if and only if they have been defined 502 switch(layoutDirection) { 503 case LAYOUT_DIRECTION_RTL: 504 if (mOverride) { 505 mShowing[Drawables.RIGHT] = mDrawableStart; 506 mDrawableSizeRight = mDrawableSizeStart; 507 mDrawableHeightRight = mDrawableHeightStart; 508 509 mShowing[Drawables.LEFT] = mDrawableEnd; 510 mDrawableSizeLeft = mDrawableSizeEnd; 511 mDrawableHeightLeft = mDrawableHeightEnd; 512 } 513 break; 514 515 case LAYOUT_DIRECTION_LTR: 516 default: 517 if (mOverride) { 518 mShowing[Drawables.LEFT] = mDrawableStart; 519 mDrawableSizeLeft = mDrawableSizeStart; 520 mDrawableHeightLeft = mDrawableHeightStart; 521 522 mShowing[Drawables.RIGHT] = mDrawableEnd; 523 mDrawableSizeRight = mDrawableSizeEnd; 524 mDrawableHeightRight = mDrawableHeightEnd; 525 } 526 break; 527 } 528 } 529 530 applyErrorDrawableIfNeeded(layoutDirection); 531 532 return mShowing[Drawables.LEFT] != previousLeft 533 || mShowing[Drawables.RIGHT] != previousRight; 534 } 535 536 public void setErrorDrawable(Drawable dr, TextView tv) { 537 if (mDrawableError != dr && mDrawableError != null) { 538 mDrawableError.setCallback(null); 539 } 540 mDrawableError = dr; 541 542 if (mDrawableError != null) { 543 final Rect compoundRect = mCompoundRect; 544 final int[] state = tv.getDrawableState(); 545 546 mDrawableError.setState(state); 547 mDrawableError.copyBounds(compoundRect); 548 mDrawableError.setCallback(tv); 549 mDrawableSizeError = compoundRect.width(); 550 mDrawableHeightError = compoundRect.height(); 551 } else { 552 mDrawableSizeError = mDrawableHeightError = 0; 553 } 554 } 555 556 private void applyErrorDrawableIfNeeded(int layoutDirection) { 557 // first restore the initial state if needed 558 switch (mDrawableSaved) { 559 case DRAWABLE_LEFT: 560 mShowing[Drawables.LEFT] = mDrawableTemp; 561 mDrawableSizeLeft = mDrawableSizeTemp; 562 mDrawableHeightLeft = mDrawableHeightTemp; 563 break; 564 case DRAWABLE_RIGHT: 565 mShowing[Drawables.RIGHT] = mDrawableTemp; 566 mDrawableSizeRight = mDrawableSizeTemp; 567 mDrawableHeightRight = mDrawableHeightTemp; 568 break; 569 case DRAWABLE_NONE: 570 default: 571 } 572 // then, if needed, assign the Error drawable to the correct location 573 if (mDrawableError != null) { 574 switch(layoutDirection) { 575 case LAYOUT_DIRECTION_RTL: 576 mDrawableSaved = DRAWABLE_LEFT; 577 578 mDrawableTemp = mShowing[Drawables.LEFT]; 579 mDrawableSizeTemp = mDrawableSizeLeft; 580 mDrawableHeightTemp = mDrawableHeightLeft; 581 582 mShowing[Drawables.LEFT] = mDrawableError; 583 mDrawableSizeLeft = mDrawableSizeError; 584 mDrawableHeightLeft = mDrawableHeightError; 585 break; 586 case LAYOUT_DIRECTION_LTR: 587 default: 588 mDrawableSaved = DRAWABLE_RIGHT; 589 590 mDrawableTemp = mShowing[Drawables.RIGHT]; 591 mDrawableSizeTemp = mDrawableSizeRight; 592 mDrawableHeightTemp = mDrawableHeightRight; 593 594 mShowing[Drawables.RIGHT] = mDrawableError; 595 mDrawableSizeRight = mDrawableSizeError; 596 mDrawableHeightRight = mDrawableHeightError; 597 break; 598 } 599 } 600 } 601 } 602 603 Drawables mDrawables; 604 605 private CharWrapper mCharWrapper; 606 607 private Marquee mMarquee; 608 private boolean mRestartMarquee; 609 610 private int mMarqueeRepeatLimit = 3; 611 612 private int mLastLayoutDirection = -1; 613 614 /** 615 * On some devices the fading edges add a performance penalty if used 616 * extensively in the same layout. This mode indicates how the marquee 617 * is currently being shown, if applicable. (mEllipsize will == MARQUEE) 618 */ 619 private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 620 621 /** 622 * When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores 623 * the layout that should be used when the mode switches. 624 */ 625 private Layout mSavedMarqueeModeLayout; 626 627 @ViewDebug.ExportedProperty(category = "text") 628 private CharSequence mText; 629 private CharSequence mTransformed; 630 private BufferType mBufferType = BufferType.NORMAL; 631 632 private CharSequence mHint; 633 private Layout mHintLayout; 634 635 private MovementMethod mMovement; 636 637 private TransformationMethod mTransformation; 638 private boolean mAllowTransformationLengthChange; 639 private ChangeWatcher mChangeWatcher; 640 641 private ArrayList<TextWatcher> mListeners; 642 643 // display attributes 644 private final TextPaint mTextPaint; 645 private boolean mUserSetTextScaleX; 646 private Layout mLayout; 647 private boolean mLocalesChanged = false; 648 649 // True if setKeyListener() has been explicitly called 650 private boolean mListenerChanged = false; 651 // True if internationalized input should be used for numbers and date and time. 652 private final boolean mUseInternationalizedInput; 653 654 @ViewDebug.ExportedProperty(category = "text") 655 private int mGravity = Gravity.TOP | Gravity.START; 656 private boolean mHorizontallyScrolling; 657 658 private int mAutoLinkMask; 659 private boolean mLinksClickable = true; 660 661 private float mSpacingMult = 1.0f; 662 private float mSpacingAdd = 0.0f; 663 664 private int mBreakStrategy; 665 private int mHyphenationFrequency; 666 private int mJustificationMode; 667 668 private int mMaximum = Integer.MAX_VALUE; 669 private int mMaxMode = LINES; 670 private int mMinimum = 0; 671 private int mMinMode = LINES; 672 673 private int mOldMaximum = mMaximum; 674 private int mOldMaxMode = mMaxMode; 675 676 private int mMaxWidth = Integer.MAX_VALUE; 677 private int mMaxWidthMode = PIXELS; 678 private int mMinWidth = 0; 679 private int mMinWidthMode = PIXELS; 680 681 private boolean mSingleLine; 682 private int mDesiredHeightAtMeasure = -1; 683 private boolean mIncludePad = true; 684 private int mDeferScroll = -1; 685 686 // tmp primitives, so we don't alloc them on each draw 687 private Rect mTempRect; 688 private long mLastScroll; 689 private Scroller mScroller; 690 private TextPaint mTempTextPaint; 691 692 private BoringLayout.Metrics mBoring, mHintBoring; 693 private BoringLayout mSavedLayout, mSavedHintLayout; 694 695 private TextDirectionHeuristic mTextDir; 696 697 private InputFilter[] mFilters = NO_FILTERS; 698 699 private volatile Locale mCurrentSpellCheckerLocaleCache; 700 701 // It is possible to have a selection even when mEditor is null (programmatically set, like when 702 // a link is pressed). These highlight-related fields do not go in mEditor. 703 int mHighlightColor = 0x6633B5E5; 704 private Path mHighlightPath; 705 private final Paint mHighlightPaint; 706 private boolean mHighlightPathBogus = true; 707 708 // Although these fields are specific to editable text, they are not added to Editor because 709 // they are defined by the TextView's style and are theme-dependent. 710 int mCursorDrawableRes; 711 // These six fields, could be moved to Editor, since we know their default values and we 712 // could condition the creation of the Editor to a non standard value. This is however 713 // brittle since the hardcoded values here (such as 714 // com.android.internal.R.drawable.text_select_handle_left) would have to be updated if the 715 // default style is modified. 716 int mTextSelectHandleLeftRes; 717 int mTextSelectHandleRightRes; 718 int mTextSelectHandleRes; 719 int mTextEditSuggestionItemLayout; 720 int mTextEditSuggestionContainerLayout; 721 int mTextEditSuggestionHighlightStyle; 722 723 /** 724 * {@link EditText} specific data, created on demand when one of the Editor fields is used. 725 * See {@link #createEditorIfNeeded()}. 726 */ 727 private Editor mEditor; 728 729 private static final int DEVICE_PROVISIONED_UNKNOWN = 0; 730 private static final int DEVICE_PROVISIONED_NO = 1; 731 private static final int DEVICE_PROVISIONED_YES = 2; 732 733 /** 734 * Some special options such as sharing selected text should only be shown if the device 735 * is provisioned. Only check the provisioned state once for a given view instance. 736 */ 737 private int mDeviceProvisionedState = DEVICE_PROVISIONED_UNKNOWN; 738 739 /** 740 * The TextView does not auto-size text (default). 741 */ 742 public static final int AUTO_SIZE_TEXT_TYPE_NONE = 0; 743 744 /** 745 * The TextView scales text size both horizontally and vertically to fit within the 746 * container. 747 */ 748 public static final int AUTO_SIZE_TEXT_TYPE_UNIFORM = 1; 749 750 /** @hide */ 751 @IntDef({AUTO_SIZE_TEXT_TYPE_NONE, AUTO_SIZE_TEXT_TYPE_UNIFORM}) 752 @Retention(RetentionPolicy.SOURCE) 753 public @interface AutoSizeTextType {} 754 // Default minimum size for auto-sizing text in scaled pixels. 755 private static final int DEFAULT_AUTO_SIZE_MIN_TEXT_SIZE_IN_SP = 12; 756 // Default maximum size for auto-sizing text in scaled pixels. 757 private static final int DEFAULT_AUTO_SIZE_MAX_TEXT_SIZE_IN_SP = 112; 758 // Default value for the step size in pixels. 759 private static final int DEFAULT_AUTO_SIZE_GRANULARITY_IN_PX = 1; 760 // Use this to specify that any of the auto-size configuration int values have not been set. 761 private static final float UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE = -1f; 762 // Auto-size text type. 763 private int mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_NONE; 764 // Specify if auto-size text is needed. 765 private boolean mNeedsAutoSizeText = false; 766 // Step size for auto-sizing in pixels. 767 private float mAutoSizeStepGranularityInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 768 // Minimum text size for auto-sizing in pixels. 769 private float mAutoSizeMinTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 770 // Maximum text size for auto-sizing in pixels. 771 private float mAutoSizeMaxTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 772 // Contains a (specified or computed) distinct sorted set of text sizes in pixels to pick from 773 // when auto-sizing text. 774 private int[] mAutoSizeTextSizesInPx = EmptyArray.INT; 775 // Specifies whether auto-size should use the provided auto size steps set or if it should 776 // build the steps set using mAutoSizeMinTextSizeInPx, mAutoSizeMaxTextSizeInPx and 777 // mAutoSizeStepGranularityInPx. 778 private boolean mHasPresetAutoSizeValues = false; 779 780 // Indicates whether the text was set from resources or dynamically, so it can be used to 781 // sanitize autofill requests. 782 private boolean mTextFromResource = false; 783 784 /** 785 * Kick-start the font cache for the zygote process (to pay the cost of 786 * initializing freetype for our default font only once). 787 * @hide 788 */ 789 public static void preloadFontCache() { 790 Paint p = new Paint(); 791 p.setAntiAlias(true); 792 // Ensure that the Typeface is loaded here. 793 // Typically, Typeface is preloaded by zygote but not on all devices, e.g. Android Auto. 794 // So, sets Typeface.DEFAULT explicitly here for ensuring that the Typeface is loaded here 795 // since Paint.measureText can not be called without Typeface static initializer. 796 p.setTypeface(Typeface.DEFAULT); 797 // We don't care about the result, just the side-effect of measuring. 798 p.measureText("H"); 799 } 800 801 /** 802 * Interface definition for a callback to be invoked when an action is 803 * performed on the editor. 804 */ 805 public interface OnEditorActionListener { 806 /** 807 * Called when an action is being performed. 808 * 809 * @param v The view that was clicked. 810 * @param actionId Identifier of the action. This will be either the 811 * identifier you supplied, or {@link EditorInfo#IME_NULL 812 * EditorInfo.IME_NULL} if being called due to the enter key 813 * being pressed. 814 * @param event If triggered by an enter key, this is the event; 815 * otherwise, this is null. 816 * @return Return true if you have consumed the action, else false. 817 */ 818 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 819 } 820 821 public TextView(Context context) { 822 this(context, null); 823 } 824 825 public TextView(Context context, @Nullable AttributeSet attrs) { 826 this(context, attrs, com.android.internal.R.attr.textViewStyle); 827 } 828 829 public TextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { 830 this(context, attrs, defStyleAttr, 0); 831 } 832 833 @SuppressWarnings("deprecation") 834 public TextView( 835 Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { 836 super(context, attrs, defStyleAttr, defStyleRes); 837 838 // TextView is important by default, unless app developer overrode attribute. 839 if (getImportantForAutofill() == IMPORTANT_FOR_AUTOFILL_AUTO) { 840 setImportantForAutofill(IMPORTANT_FOR_AUTOFILL_YES); 841 } 842 843 mText = ""; 844 845 final Resources res = getResources(); 846 final CompatibilityInfo compat = res.getCompatibilityInfo(); 847 848 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 849 mTextPaint.density = res.getDisplayMetrics().density; 850 mTextPaint.setCompatibilityScaling(compat.applicationScale); 851 852 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 853 mHighlightPaint.setCompatibilityScaling(compat.applicationScale); 854 855 mMovement = getDefaultMovementMethod(); 856 857 mTransformation = null; 858 859 final TextAppearanceAttributes attributes = new TextAppearanceAttributes(); 860 attributes.mTextColor = ColorStateList.valueOf(0xFF000000); 861 attributes.mTextSize = 15; 862 mBreakStrategy = Layout.BREAK_STRATEGY_SIMPLE; 863 mHyphenationFrequency = Layout.HYPHENATION_FREQUENCY_NONE; 864 mJustificationMode = Layout.JUSTIFICATION_MODE_NONE; 865 866 final Resources.Theme theme = context.getTheme(); 867 868 /* 869 * Look the appearance up without checking first if it exists because 870 * almost every TextView has one and it greatly simplifies the logic 871 * to be able to parse the appearance first and then let specific tags 872 * for this View override it. 873 */ 874 TypedArray a = theme.obtainStyledAttributes(attrs, 875 com.android.internal.R.styleable.TextViewAppearance, defStyleAttr, defStyleRes); 876 TypedArray appearance = null; 877 int ap = a.getResourceId( 878 com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1); 879 a.recycle(); 880 if (ap != -1) { 881 appearance = theme.obtainStyledAttributes( 882 ap, com.android.internal.R.styleable.TextAppearance); 883 } 884 if (appearance != null) { 885 readTextAppearance(context, appearance, attributes, false /* styleArray */); 886 attributes.mFontFamilyExplicit = false; 887 appearance.recycle(); 888 } 889 890 boolean editable = getDefaultEditable(); 891 CharSequence inputMethod = null; 892 int numeric = 0; 893 CharSequence digits = null; 894 boolean phone = false; 895 boolean autotext = false; 896 int autocap = -1; 897 int buffertype = 0; 898 boolean selectallonfocus = false; 899 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 900 drawableBottom = null, drawableStart = null, drawableEnd = null; 901 ColorStateList drawableTint = null; 902 PorterDuff.Mode drawableTintMode = null; 903 int drawablePadding = 0; 904 int ellipsize = ELLIPSIZE_NOT_SET; 905 boolean singleLine = false; 906 int maxlength = -1; 907 CharSequence text = ""; 908 CharSequence hint = null; 909 boolean password = false; 910 float autoSizeMinTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 911 float autoSizeMaxTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 912 float autoSizeStepGranularityInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 913 int inputType = EditorInfo.TYPE_NULL; 914 a = theme.obtainStyledAttributes( 915 attrs, com.android.internal.R.styleable.TextView, defStyleAttr, defStyleRes); 916 917 readTextAppearance(context, a, attributes, true /* styleArray */); 918 919 int n = a.getIndexCount(); 920 921 boolean fromResourceId = false; 922 for (int i = 0; i < n; i++) { 923 int attr = a.getIndex(i); 924 925 switch (attr) { 926 case com.android.internal.R.styleable.TextView_editable: 927 editable = a.getBoolean(attr, editable); 928 break; 929 930 case com.android.internal.R.styleable.TextView_inputMethod: 931 inputMethod = a.getText(attr); 932 break; 933 934 case com.android.internal.R.styleable.TextView_numeric: 935 numeric = a.getInt(attr, numeric); 936 break; 937 938 case com.android.internal.R.styleable.TextView_digits: 939 digits = a.getText(attr); 940 break; 941 942 case com.android.internal.R.styleable.TextView_phoneNumber: 943 phone = a.getBoolean(attr, phone); 944 break; 945 946 case com.android.internal.R.styleable.TextView_autoText: 947 autotext = a.getBoolean(attr, autotext); 948 break; 949 950 case com.android.internal.R.styleable.TextView_capitalize: 951 autocap = a.getInt(attr, autocap); 952 break; 953 954 case com.android.internal.R.styleable.TextView_bufferType: 955 buffertype = a.getInt(attr, buffertype); 956 break; 957 958 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 959 selectallonfocus = a.getBoolean(attr, selectallonfocus); 960 break; 961 962 case com.android.internal.R.styleable.TextView_autoLink: 963 mAutoLinkMask = a.getInt(attr, 0); 964 break; 965 966 case com.android.internal.R.styleable.TextView_linksClickable: 967 mLinksClickable = a.getBoolean(attr, true); 968 break; 969 970 case com.android.internal.R.styleable.TextView_drawableLeft: 971 drawableLeft = a.getDrawable(attr); 972 break; 973 974 case com.android.internal.R.styleable.TextView_drawableTop: 975 drawableTop = a.getDrawable(attr); 976 break; 977 978 case com.android.internal.R.styleable.TextView_drawableRight: 979 drawableRight = a.getDrawable(attr); 980 break; 981 982 case com.android.internal.R.styleable.TextView_drawableBottom: 983 drawableBottom = a.getDrawable(attr); 984 break; 985 986 case com.android.internal.R.styleable.TextView_drawableStart: 987 drawableStart = a.getDrawable(attr); 988 break; 989 990 case com.android.internal.R.styleable.TextView_drawableEnd: 991 drawableEnd = a.getDrawable(attr); 992 break; 993 994 case com.android.internal.R.styleable.TextView_drawableTint: 995 drawableTint = a.getColorStateList(attr); 996 break; 997 998 case com.android.internal.R.styleable.TextView_drawableTintMode: 999 drawableTintMode = Drawable.parseTintMode(a.getInt(attr, -1), drawableTintMode); 1000 break; 1001 1002 case com.android.internal.R.styleable.TextView_drawablePadding: 1003 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 1004 break; 1005 1006 case com.android.internal.R.styleable.TextView_maxLines: 1007 setMaxLines(a.getInt(attr, -1)); 1008 break; 1009 1010 case com.android.internal.R.styleable.TextView_maxHeight: 1011 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 1012 break; 1013 1014 case com.android.internal.R.styleable.TextView_lines: 1015 setLines(a.getInt(attr, -1)); 1016 break; 1017 1018 case com.android.internal.R.styleable.TextView_height: 1019 setHeight(a.getDimensionPixelSize(attr, -1)); 1020 break; 1021 1022 case com.android.internal.R.styleable.TextView_minLines: 1023 setMinLines(a.getInt(attr, -1)); 1024 break; 1025 1026 case com.android.internal.R.styleable.TextView_minHeight: 1027 setMinHeight(a.getDimensionPixelSize(attr, -1)); 1028 break; 1029 1030 case com.android.internal.R.styleable.TextView_maxEms: 1031 setMaxEms(a.getInt(attr, -1)); 1032 break; 1033 1034 case com.android.internal.R.styleable.TextView_maxWidth: 1035 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 1036 break; 1037 1038 case com.android.internal.R.styleable.TextView_ems: 1039 setEms(a.getInt(attr, -1)); 1040 break; 1041 1042 case com.android.internal.R.styleable.TextView_width: 1043 setWidth(a.getDimensionPixelSize(attr, -1)); 1044 break; 1045 1046 case com.android.internal.R.styleable.TextView_minEms: 1047 setMinEms(a.getInt(attr, -1)); 1048 break; 1049 1050 case com.android.internal.R.styleable.TextView_minWidth: 1051 setMinWidth(a.getDimensionPixelSize(attr, -1)); 1052 break; 1053 1054 case com.android.internal.R.styleable.TextView_gravity: 1055 setGravity(a.getInt(attr, -1)); 1056 break; 1057 1058 case com.android.internal.R.styleable.TextView_hint: 1059 hint = a.getText(attr); 1060 break; 1061 1062 case com.android.internal.R.styleable.TextView_text: 1063 fromResourceId = true; 1064 text = a.getText(attr); 1065 break; 1066 1067 case com.android.internal.R.styleable.TextView_scrollHorizontally: 1068 if (a.getBoolean(attr, false)) { 1069 setHorizontallyScrolling(true); 1070 } 1071 break; 1072 1073 case com.android.internal.R.styleable.TextView_singleLine: 1074 singleLine = a.getBoolean(attr, singleLine); 1075 break; 1076 1077 case com.android.internal.R.styleable.TextView_ellipsize: 1078 ellipsize = a.getInt(attr, ellipsize); 1079 break; 1080 1081 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 1082 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 1083 break; 1084 1085 case com.android.internal.R.styleable.TextView_includeFontPadding: 1086 if (!a.getBoolean(attr, true)) { 1087 setIncludeFontPadding(false); 1088 } 1089 break; 1090 1091 case com.android.internal.R.styleable.TextView_cursorVisible: 1092 if (!a.getBoolean(attr, true)) { 1093 setCursorVisible(false); 1094 } 1095 break; 1096 1097 case com.android.internal.R.styleable.TextView_maxLength: 1098 maxlength = a.getInt(attr, -1); 1099 break; 1100 1101 case com.android.internal.R.styleable.TextView_textScaleX: 1102 setTextScaleX(a.getFloat(attr, 1.0f)); 1103 break; 1104 1105 case com.android.internal.R.styleable.TextView_freezesText: 1106 mFreezesText = a.getBoolean(attr, false); 1107 break; 1108 1109 case com.android.internal.R.styleable.TextView_enabled: 1110 setEnabled(a.getBoolean(attr, isEnabled())); 1111 break; 1112 1113 case com.android.internal.R.styleable.TextView_password: 1114 password = a.getBoolean(attr, password); 1115 break; 1116 1117 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 1118 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 1119 break; 1120 1121 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 1122 mSpacingMult = a.getFloat(attr, mSpacingMult); 1123 break; 1124 1125 case com.android.internal.R.styleable.TextView_inputType: 1126 inputType = a.getInt(attr, EditorInfo.TYPE_NULL); 1127 break; 1128 1129 case com.android.internal.R.styleable.TextView_allowUndo: 1130 createEditorIfNeeded(); 1131 mEditor.mAllowUndo = a.getBoolean(attr, true); 1132 break; 1133 1134 case com.android.internal.R.styleable.TextView_imeOptions: 1135 createEditorIfNeeded(); 1136 mEditor.createInputContentTypeIfNeeded(); 1137 mEditor.mInputContentType.imeOptions = a.getInt(attr, 1138 mEditor.mInputContentType.imeOptions); 1139 break; 1140 1141 case com.android.internal.R.styleable.TextView_imeActionLabel: 1142 createEditorIfNeeded(); 1143 mEditor.createInputContentTypeIfNeeded(); 1144 mEditor.mInputContentType.imeActionLabel = a.getText(attr); 1145 break; 1146 1147 case com.android.internal.R.styleable.TextView_imeActionId: 1148 createEditorIfNeeded(); 1149 mEditor.createInputContentTypeIfNeeded(); 1150 mEditor.mInputContentType.imeActionId = a.getInt(attr, 1151 mEditor.mInputContentType.imeActionId); 1152 break; 1153 1154 case com.android.internal.R.styleable.TextView_privateImeOptions: 1155 setPrivateImeOptions(a.getString(attr)); 1156 break; 1157 1158 case com.android.internal.R.styleable.TextView_editorExtras: 1159 try { 1160 setInputExtras(a.getResourceId(attr, 0)); 1161 } catch (XmlPullParserException e) { 1162 Log.w(LOG_TAG, "Failure reading input extras", e); 1163 } catch (IOException e) { 1164 Log.w(LOG_TAG, "Failure reading input extras", e); 1165 } 1166 break; 1167 1168 case com.android.internal.R.styleable.TextView_textCursorDrawable: 1169 mCursorDrawableRes = a.getResourceId(attr, 0); 1170 break; 1171 1172 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 1173 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 1174 break; 1175 1176 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 1177 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 1178 break; 1179 1180 case com.android.internal.R.styleable.TextView_textSelectHandle: 1181 mTextSelectHandleRes = a.getResourceId(attr, 0); 1182 break; 1183 1184 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 1185 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 1186 break; 1187 1188 case com.android.internal.R.styleable.TextView_textEditSuggestionContainerLayout: 1189 mTextEditSuggestionContainerLayout = a.getResourceId(attr, 0); 1190 break; 1191 1192 case com.android.internal.R.styleable.TextView_textEditSuggestionHighlightStyle: 1193 mTextEditSuggestionHighlightStyle = a.getResourceId(attr, 0); 1194 break; 1195 1196 case com.android.internal.R.styleable.TextView_textIsSelectable: 1197 setTextIsSelectable(a.getBoolean(attr, false)); 1198 break; 1199 1200 case com.android.internal.R.styleable.TextView_breakStrategy: 1201 mBreakStrategy = a.getInt(attr, Layout.BREAK_STRATEGY_SIMPLE); 1202 break; 1203 1204 case com.android.internal.R.styleable.TextView_hyphenationFrequency: 1205 mHyphenationFrequency = a.getInt(attr, Layout.HYPHENATION_FREQUENCY_NONE); 1206 break; 1207 1208 case com.android.internal.R.styleable.TextView_autoSizeTextType: 1209 mAutoSizeTextType = a.getInt(attr, AUTO_SIZE_TEXT_TYPE_NONE); 1210 break; 1211 1212 case com.android.internal.R.styleable.TextView_autoSizeStepGranularity: 1213 autoSizeStepGranularityInPx = a.getDimension(attr, 1214 UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE); 1215 break; 1216 1217 case com.android.internal.R.styleable.TextView_autoSizeMinTextSize: 1218 autoSizeMinTextSizeInPx = a.getDimension(attr, 1219 UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE); 1220 break; 1221 1222 case com.android.internal.R.styleable.TextView_autoSizeMaxTextSize: 1223 autoSizeMaxTextSizeInPx = a.getDimension(attr, 1224 UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE); 1225 break; 1226 1227 case com.android.internal.R.styleable.TextView_autoSizePresetSizes: 1228 final int autoSizeStepSizeArrayResId = a.getResourceId(attr, 0); 1229 if (autoSizeStepSizeArrayResId > 0) { 1230 final TypedArray autoSizePresetTextSizes = a.getResources() 1231 .obtainTypedArray(autoSizeStepSizeArrayResId); 1232 setupAutoSizeUniformPresetSizes(autoSizePresetTextSizes); 1233 autoSizePresetTextSizes.recycle(); 1234 } 1235 break; 1236 case com.android.internal.R.styleable.TextView_justificationMode: 1237 mJustificationMode = a.getInt(attr, Layout.JUSTIFICATION_MODE_NONE); 1238 break; 1239 } 1240 } 1241 1242 a.recycle(); 1243 1244 BufferType bufferType = BufferType.EDITABLE; 1245 1246 final int variation = 1247 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 1248 final boolean passwordInputType = variation 1249 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 1250 final boolean webPasswordInputType = variation 1251 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 1252 final boolean numberPasswordInputType = variation 1253 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 1254 1255 mUseInternationalizedInput = 1256 context.getApplicationInfo().targetSdkVersion >= VERSION_CODES.O; 1257 1258 if (inputMethod != null) { 1259 Class<?> c; 1260 1261 try { 1262 c = Class.forName(inputMethod.toString()); 1263 } catch (ClassNotFoundException ex) { 1264 throw new RuntimeException(ex); 1265 } 1266 1267 try { 1268 createEditorIfNeeded(); 1269 mEditor.mKeyListener = (KeyListener) c.newInstance(); 1270 } catch (InstantiationException ex) { 1271 throw new RuntimeException(ex); 1272 } catch (IllegalAccessException ex) { 1273 throw new RuntimeException(ex); 1274 } 1275 try { 1276 mEditor.mInputType = inputType != EditorInfo.TYPE_NULL 1277 ? inputType 1278 : mEditor.mKeyListener.getInputType(); 1279 } catch (IncompatibleClassChangeError e) { 1280 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1281 } 1282 } else if (digits != null) { 1283 createEditorIfNeeded(); 1284 mEditor.mKeyListener = DigitsKeyListener.getInstance(digits.toString()); 1285 // If no input type was specified, we will default to generic 1286 // text, since we can't tell the IME about the set of digits 1287 // that was selected. 1288 mEditor.mInputType = inputType != EditorInfo.TYPE_NULL 1289 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 1290 } else if (inputType != EditorInfo.TYPE_NULL) { 1291 setInputType(inputType, true); 1292 // If set, the input type overrides what was set using the deprecated singleLine flag. 1293 singleLine = !isMultilineInputType(inputType); 1294 } else if (phone) { 1295 createEditorIfNeeded(); 1296 mEditor.mKeyListener = DialerKeyListener.getInstance(); 1297 mEditor.mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 1298 } else if (numeric != 0) { 1299 createEditorIfNeeded(); 1300 mEditor.mKeyListener = DigitsKeyListener.getInstance( 1301 null, // locale 1302 (numeric & SIGNED) != 0, 1303 (numeric & DECIMAL) != 0); 1304 inputType = mEditor.mKeyListener.getInputType(); 1305 mEditor.mInputType = inputType; 1306 } else if (autotext || autocap != -1) { 1307 TextKeyListener.Capitalize cap; 1308 1309 inputType = EditorInfo.TYPE_CLASS_TEXT; 1310 1311 switch (autocap) { 1312 case 1: 1313 cap = TextKeyListener.Capitalize.SENTENCES; 1314 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 1315 break; 1316 1317 case 2: 1318 cap = TextKeyListener.Capitalize.WORDS; 1319 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 1320 break; 1321 1322 case 3: 1323 cap = TextKeyListener.Capitalize.CHARACTERS; 1324 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 1325 break; 1326 1327 default: 1328 cap = TextKeyListener.Capitalize.NONE; 1329 break; 1330 } 1331 1332 createEditorIfNeeded(); 1333 mEditor.mKeyListener = TextKeyListener.getInstance(autotext, cap); 1334 mEditor.mInputType = inputType; 1335 } else if (editable) { 1336 createEditorIfNeeded(); 1337 mEditor.mKeyListener = TextKeyListener.getInstance(); 1338 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1339 } else if (isTextSelectable()) { 1340 // Prevent text changes from keyboard. 1341 if (mEditor != null) { 1342 mEditor.mKeyListener = null; 1343 mEditor.mInputType = EditorInfo.TYPE_NULL; 1344 } 1345 bufferType = BufferType.SPANNABLE; 1346 // So that selection can be changed using arrow keys and touch is handled. 1347 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 1348 } else { 1349 if (mEditor != null) mEditor.mKeyListener = null; 1350 1351 switch (buffertype) { 1352 case 0: 1353 bufferType = BufferType.NORMAL; 1354 break; 1355 case 1: 1356 bufferType = BufferType.SPANNABLE; 1357 break; 1358 case 2: 1359 bufferType = BufferType.EDITABLE; 1360 break; 1361 } 1362 } 1363 1364 if (mEditor != null) { 1365 mEditor.adjustInputType(password, passwordInputType, webPasswordInputType, 1366 numberPasswordInputType); 1367 } 1368 1369 if (selectallonfocus) { 1370 createEditorIfNeeded(); 1371 mEditor.mSelectAllOnFocus = true; 1372 1373 if (bufferType == BufferType.NORMAL) { 1374 bufferType = BufferType.SPANNABLE; 1375 } 1376 } 1377 1378 // Set up the tint (if needed) before setting the drawables so that it 1379 // gets applied correctly. 1380 if (drawableTint != null || drawableTintMode != null) { 1381 if (mDrawables == null) { 1382 mDrawables = new Drawables(context); 1383 } 1384 if (drawableTint != null) { 1385 mDrawables.mTintList = drawableTint; 1386 mDrawables.mHasTint = true; 1387 } 1388 if (drawableTintMode != null) { 1389 mDrawables.mTintMode = drawableTintMode; 1390 mDrawables.mHasTintMode = true; 1391 } 1392 } 1393 1394 // This call will save the initial left/right drawables 1395 setCompoundDrawablesWithIntrinsicBounds( 1396 drawableLeft, drawableTop, drawableRight, drawableBottom); 1397 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 1398 setCompoundDrawablePadding(drawablePadding); 1399 1400 // Same as setSingleLine(), but make sure the transformation method and the maximum number 1401 // of lines of height are unchanged for multi-line TextViews. 1402 setInputTypeSingleLine(singleLine); 1403 applySingleLine(singleLine, singleLine, singleLine); 1404 1405 if (singleLine && getKeyListener() == null && ellipsize == ELLIPSIZE_NOT_SET) { 1406 ellipsize = ELLIPSIZE_END; 1407 } 1408 1409 switch (ellipsize) { 1410 case ELLIPSIZE_START: 1411 setEllipsize(TextUtils.TruncateAt.START); 1412 break; 1413 case ELLIPSIZE_MIDDLE: 1414 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1415 break; 1416 case ELLIPSIZE_END: 1417 setEllipsize(TextUtils.TruncateAt.END); 1418 break; 1419 case ELLIPSIZE_MARQUEE: 1420 if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) { 1421 setHorizontalFadingEdgeEnabled(true); 1422 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 1423 } else { 1424 setHorizontalFadingEdgeEnabled(false); 1425 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 1426 } 1427 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1428 break; 1429 } 1430 1431 final boolean isPassword = password || passwordInputType || webPasswordInputType 1432 || numberPasswordInputType; 1433 final boolean isMonospaceEnforced = isPassword || (mEditor != null 1434 && (mEditor.mInputType 1435 & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1436 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)); 1437 if (isMonospaceEnforced) { 1438 attributes.mTypefaceIndex = MONOSPACE; 1439 } 1440 1441 applyTextAppearance(attributes); 1442 1443 if (isPassword) { 1444 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1445 } 1446 1447 if (maxlength >= 0) { 1448 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1449 } else { 1450 setFilters(NO_FILTERS); 1451 } 1452 1453 setText(text, bufferType); 1454 if (fromResourceId) { 1455 mTextFromResource = true; 1456 } 1457 1458 if (hint != null) setHint(hint); 1459 1460 /* 1461 * Views are not normally clickable unless specified to be. 1462 * However, TextViews that have input or movement methods *are* 1463 * clickable by default. By setting clickable here, we implicitly set focusable as well 1464 * if not overridden by the developer. 1465 */ 1466 a = context.obtainStyledAttributes( 1467 attrs, com.android.internal.R.styleable.View, defStyleAttr, defStyleRes); 1468 boolean canInputOrMove = (mMovement != null || getKeyListener() != null); 1469 boolean clickable = canInputOrMove || isClickable(); 1470 boolean longClickable = canInputOrMove || isLongClickable(); 1471 int focusable = getFocusable(); 1472 1473 n = a.getIndexCount(); 1474 for (int i = 0; i < n; i++) { 1475 int attr = a.getIndex(i); 1476 1477 switch (attr) { 1478 case com.android.internal.R.styleable.View_focusable: 1479 TypedValue val = new TypedValue(); 1480 if (a.getValue(attr, val)) { 1481 focusable = (val.type == TypedValue.TYPE_INT_BOOLEAN) 1482 ? (val.data == 0 ? NOT_FOCUSABLE : FOCUSABLE) 1483 : val.data; 1484 } 1485 break; 1486 1487 case com.android.internal.R.styleable.View_clickable: 1488 clickable = a.getBoolean(attr, clickable); 1489 break; 1490 1491 case com.android.internal.R.styleable.View_longClickable: 1492 longClickable = a.getBoolean(attr, longClickable); 1493 break; 1494 } 1495 } 1496 a.recycle(); 1497 1498 // Some apps were relying on the undefined behavior of focusable winning over 1499 // focusableInTouchMode != focusable in TextViews if both were specified in XML (usually 1500 // when starting with EditText and setting only focusable=false). To keep those apps from 1501 // breaking, re-apply the focusable attribute here. 1502 if (focusable != getFocusable()) { 1503 setFocusable(focusable); 1504 } 1505 setClickable(clickable); 1506 setLongClickable(longClickable); 1507 1508 if (mEditor != null) mEditor.prepareCursorControllers(); 1509 1510 // If not explicitly specified this view is important for accessibility. 1511 if (getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 1512 setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 1513 } 1514 1515 if (supportsAutoSizeText()) { 1516 if (mAutoSizeTextType == AUTO_SIZE_TEXT_TYPE_UNIFORM) { 1517 // If uniform auto-size has been specified but preset values have not been set then 1518 // replace the auto-size configuration values that have not been specified with the 1519 // defaults. 1520 if (!mHasPresetAutoSizeValues) { 1521 final DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); 1522 1523 if (autoSizeMinTextSizeInPx == UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE) { 1524 autoSizeMinTextSizeInPx = TypedValue.applyDimension( 1525 TypedValue.COMPLEX_UNIT_SP, 1526 DEFAULT_AUTO_SIZE_MIN_TEXT_SIZE_IN_SP, 1527 displayMetrics); 1528 } 1529 1530 if (autoSizeMaxTextSizeInPx == UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE) { 1531 autoSizeMaxTextSizeInPx = TypedValue.applyDimension( 1532 TypedValue.COMPLEX_UNIT_SP, 1533 DEFAULT_AUTO_SIZE_MAX_TEXT_SIZE_IN_SP, 1534 displayMetrics); 1535 } 1536 1537 if (autoSizeStepGranularityInPx 1538 == UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE) { 1539 autoSizeStepGranularityInPx = DEFAULT_AUTO_SIZE_GRANULARITY_IN_PX; 1540 } 1541 1542 validateAndSetAutoSizeTextTypeUniformConfiguration(autoSizeMinTextSizeInPx, 1543 autoSizeMaxTextSizeInPx, 1544 autoSizeStepGranularityInPx); 1545 } 1546 1547 setupAutoSizeText(); 1548 } 1549 } else { 1550 mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_NONE; 1551 } 1552 } 1553 1554 /** 1555 * Specify whether this widget should automatically scale the text to try to perfectly fit 1556 * within the layout bounds by using the default auto-size configuration. 1557 * 1558 * @param autoSizeTextType the type of auto-size. Must be one of 1559 * {@link TextView#AUTO_SIZE_TEXT_TYPE_NONE} or 1560 * {@link TextView#AUTO_SIZE_TEXT_TYPE_UNIFORM} 1561 * 1562 * @throws IllegalArgumentException if <code>autoSizeTextType</code> is none of the types above. 1563 * 1564 * @attr ref android.R.styleable#TextView_autoSizeTextType 1565 * 1566 * @see #getAutoSizeTextType() 1567 */ 1568 public void setAutoSizeTextTypeWithDefaults(@AutoSizeTextType int autoSizeTextType) { 1569 if (supportsAutoSizeText()) { 1570 switch (autoSizeTextType) { 1571 case AUTO_SIZE_TEXT_TYPE_NONE: 1572 clearAutoSizeConfiguration(); 1573 break; 1574 case AUTO_SIZE_TEXT_TYPE_UNIFORM: 1575 final DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); 1576 final float autoSizeMinTextSizeInPx = TypedValue.applyDimension( 1577 TypedValue.COMPLEX_UNIT_SP, 1578 DEFAULT_AUTO_SIZE_MIN_TEXT_SIZE_IN_SP, 1579 displayMetrics); 1580 final float autoSizeMaxTextSizeInPx = TypedValue.applyDimension( 1581 TypedValue.COMPLEX_UNIT_SP, 1582 DEFAULT_AUTO_SIZE_MAX_TEXT_SIZE_IN_SP, 1583 displayMetrics); 1584 1585 validateAndSetAutoSizeTextTypeUniformConfiguration( 1586 autoSizeMinTextSizeInPx, 1587 autoSizeMaxTextSizeInPx, 1588 DEFAULT_AUTO_SIZE_GRANULARITY_IN_PX); 1589 if (setupAutoSizeText()) { 1590 autoSizeText(); 1591 invalidate(); 1592 } 1593 break; 1594 default: 1595 throw new IllegalArgumentException( 1596 "Unknown auto-size text type: " + autoSizeTextType); 1597 } 1598 } 1599 } 1600 1601 /** 1602 * Specify whether this widget should automatically scale the text to try to perfectly fit 1603 * within the layout bounds. If all the configuration params are valid the type of auto-size is 1604 * set to {@link #AUTO_SIZE_TEXT_TYPE_UNIFORM}. 1605 * 1606 * @param autoSizeMinTextSize the minimum text size available for auto-size 1607 * @param autoSizeMaxTextSize the maximum text size available for auto-size 1608 * @param autoSizeStepGranularity the auto-size step granularity. It is used in conjunction with 1609 * the minimum and maximum text size in order to build the set of 1610 * text sizes the system uses to choose from when auto-sizing 1611 * @param unit the desired dimension unit for all sizes above. See {@link TypedValue} for the 1612 * possible dimension units 1613 * 1614 * @throws IllegalArgumentException if any of the configuration params are invalid. 1615 * 1616 * @attr ref android.R.styleable#TextView_autoSizeTextType 1617 * @attr ref android.R.styleable#TextView_autoSizeMinTextSize 1618 * @attr ref android.R.styleable#TextView_autoSizeMaxTextSize 1619 * @attr ref android.R.styleable#TextView_autoSizeStepGranularity 1620 * 1621 * @see #setAutoSizeTextTypeWithDefaults(int) 1622 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1623 * @see #getAutoSizeMinTextSize() 1624 * @see #getAutoSizeMaxTextSize() 1625 * @see #getAutoSizeStepGranularity() 1626 * @see #getAutoSizeTextAvailableSizes() 1627 */ 1628 public void setAutoSizeTextTypeUniformWithConfiguration(int autoSizeMinTextSize, 1629 int autoSizeMaxTextSize, int autoSizeStepGranularity, int unit) { 1630 if (supportsAutoSizeText()) { 1631 final DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); 1632 final float autoSizeMinTextSizeInPx = TypedValue.applyDimension( 1633 unit, autoSizeMinTextSize, displayMetrics); 1634 final float autoSizeMaxTextSizeInPx = TypedValue.applyDimension( 1635 unit, autoSizeMaxTextSize, displayMetrics); 1636 final float autoSizeStepGranularityInPx = TypedValue.applyDimension( 1637 unit, autoSizeStepGranularity, displayMetrics); 1638 1639 validateAndSetAutoSizeTextTypeUniformConfiguration(autoSizeMinTextSizeInPx, 1640 autoSizeMaxTextSizeInPx, 1641 autoSizeStepGranularityInPx); 1642 1643 if (setupAutoSizeText()) { 1644 autoSizeText(); 1645 invalidate(); 1646 } 1647 } 1648 } 1649 1650 /** 1651 * Specify whether this widget should automatically scale the text to try to perfectly fit 1652 * within the layout bounds. If at least one value from the <code>presetSizes</code> is valid 1653 * then the type of auto-size is set to {@link #AUTO_SIZE_TEXT_TYPE_UNIFORM}. 1654 * 1655 * @param presetSizes an {@code int} array of sizes in pixels 1656 * @param unit the desired dimension unit for the preset sizes above. See {@link TypedValue} for 1657 * the possible dimension units 1658 * 1659 * @throws IllegalArgumentException if all of the <code>presetSizes</code> are invalid. 1660 * 1661 * @attr ref android.R.styleable#TextView_autoSizeTextType 1662 * @attr ref android.R.styleable#TextView_autoSizePresetSizes 1663 * 1664 * @see #setAutoSizeTextTypeWithDefaults(int) 1665 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1666 * @see #getAutoSizeMinTextSize() 1667 * @see #getAutoSizeMaxTextSize() 1668 * @see #getAutoSizeTextAvailableSizes() 1669 */ 1670 public void setAutoSizeTextTypeUniformWithPresetSizes(@NonNull int[] presetSizes, int unit) { 1671 if (supportsAutoSizeText()) { 1672 final int presetSizesLength = presetSizes.length; 1673 if (presetSizesLength > 0) { 1674 int[] presetSizesInPx = new int[presetSizesLength]; 1675 1676 if (unit == TypedValue.COMPLEX_UNIT_PX) { 1677 presetSizesInPx = Arrays.copyOf(presetSizes, presetSizesLength); 1678 } else { 1679 final DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); 1680 // Convert all to sizes to pixels. 1681 for (int i = 0; i < presetSizesLength; i++) { 1682 presetSizesInPx[i] = Math.round(TypedValue.applyDimension(unit, 1683 presetSizes[i], displayMetrics)); 1684 } 1685 } 1686 1687 mAutoSizeTextSizesInPx = cleanupAutoSizePresetSizes(presetSizesInPx); 1688 if (!setupAutoSizeUniformPresetSizesConfiguration()) { 1689 throw new IllegalArgumentException("None of the preset sizes is valid: " 1690 + Arrays.toString(presetSizes)); 1691 } 1692 } else { 1693 mHasPresetAutoSizeValues = false; 1694 } 1695 1696 if (setupAutoSizeText()) { 1697 autoSizeText(); 1698 invalidate(); 1699 } 1700 } 1701 } 1702 1703 /** 1704 * Returns the type of auto-size set for this widget. 1705 * 1706 * @return an {@code int} corresponding to one of the auto-size types: 1707 * {@link TextView#AUTO_SIZE_TEXT_TYPE_NONE} or 1708 * {@link TextView#AUTO_SIZE_TEXT_TYPE_UNIFORM} 1709 * 1710 * @attr ref android.R.styleable#TextView_autoSizeTextType 1711 * 1712 * @see #setAutoSizeTextTypeWithDefaults(int) 1713 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1714 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1715 */ 1716 @AutoSizeTextType 1717 public int getAutoSizeTextType() { 1718 return mAutoSizeTextType; 1719 } 1720 1721 /** 1722 * @return the current auto-size step granularity in pixels. 1723 * 1724 * @attr ref android.R.styleable#TextView_autoSizeStepGranularity 1725 * 1726 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1727 */ 1728 public int getAutoSizeStepGranularity() { 1729 return Math.round(mAutoSizeStepGranularityInPx); 1730 } 1731 1732 /** 1733 * @return the current auto-size minimum text size in pixels (the default is 12sp). Note that 1734 * if auto-size has not been configured this function returns {@code -1}. 1735 * 1736 * @attr ref android.R.styleable#TextView_autoSizeMinTextSize 1737 * 1738 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1739 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1740 */ 1741 public int getAutoSizeMinTextSize() { 1742 return Math.round(mAutoSizeMinTextSizeInPx); 1743 } 1744 1745 /** 1746 * @return the current auto-size maximum text size in pixels (the default is 112sp). Note that 1747 * if auto-size has not been configured this function returns {@code -1}. 1748 * 1749 * @attr ref android.R.styleable#TextView_autoSizeMaxTextSize 1750 * 1751 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1752 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1753 */ 1754 public int getAutoSizeMaxTextSize() { 1755 return Math.round(mAutoSizeMaxTextSizeInPx); 1756 } 1757 1758 /** 1759 * @return the current auto-size {@code int} sizes array (in pixels). 1760 * 1761 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1762 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1763 */ 1764 public int[] getAutoSizeTextAvailableSizes() { 1765 return mAutoSizeTextSizesInPx; 1766 } 1767 1768 private void setupAutoSizeUniformPresetSizes(TypedArray textSizes) { 1769 final int textSizesLength = textSizes.length(); 1770 final int[] parsedSizes = new int[textSizesLength]; 1771 1772 if (textSizesLength > 0) { 1773 for (int i = 0; i < textSizesLength; i++) { 1774 parsedSizes[i] = textSizes.getDimensionPixelSize(i, -1); 1775 } 1776 mAutoSizeTextSizesInPx = cleanupAutoSizePresetSizes(parsedSizes); 1777 setupAutoSizeUniformPresetSizesConfiguration(); 1778 } 1779 } 1780 1781 private boolean setupAutoSizeUniformPresetSizesConfiguration() { 1782 final int sizesLength = mAutoSizeTextSizesInPx.length; 1783 mHasPresetAutoSizeValues = sizesLength > 0; 1784 if (mHasPresetAutoSizeValues) { 1785 mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_UNIFORM; 1786 mAutoSizeMinTextSizeInPx = mAutoSizeTextSizesInPx[0]; 1787 mAutoSizeMaxTextSizeInPx = mAutoSizeTextSizesInPx[sizesLength - 1]; 1788 mAutoSizeStepGranularityInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 1789 } 1790 return mHasPresetAutoSizeValues; 1791 } 1792 1793 /** 1794 * If all params are valid then save the auto-size configuration. 1795 * 1796 * @throws IllegalArgumentException if any of the params are invalid 1797 */ 1798 private void validateAndSetAutoSizeTextTypeUniformConfiguration(float autoSizeMinTextSizeInPx, 1799 float autoSizeMaxTextSizeInPx, float autoSizeStepGranularityInPx) { 1800 // First validate. 1801 if (autoSizeMinTextSizeInPx <= 0) { 1802 throw new IllegalArgumentException("Minimum auto-size text size (" 1803 + autoSizeMinTextSizeInPx + "px) is less or equal to (0px)"); 1804 } 1805 1806 if (autoSizeMaxTextSizeInPx <= autoSizeMinTextSizeInPx) { 1807 throw new IllegalArgumentException("Maximum auto-size text size (" 1808 + autoSizeMaxTextSizeInPx + "px) is less or equal to minimum auto-size " 1809 + "text size (" + autoSizeMinTextSizeInPx + "px)"); 1810 } 1811 1812 if (autoSizeStepGranularityInPx <= 0) { 1813 throw new IllegalArgumentException("The auto-size step granularity (" 1814 + autoSizeStepGranularityInPx + "px) is less or equal to (0px)"); 1815 } 1816 1817 // All good, persist the configuration. 1818 mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_UNIFORM; 1819 mAutoSizeMinTextSizeInPx = autoSizeMinTextSizeInPx; 1820 mAutoSizeMaxTextSizeInPx = autoSizeMaxTextSizeInPx; 1821 mAutoSizeStepGranularityInPx = autoSizeStepGranularityInPx; 1822 mHasPresetAutoSizeValues = false; 1823 } 1824 1825 private void clearAutoSizeConfiguration() { 1826 mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_NONE; 1827 mAutoSizeMinTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 1828 mAutoSizeMaxTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 1829 mAutoSizeStepGranularityInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 1830 mAutoSizeTextSizesInPx = EmptyArray.INT; 1831 mNeedsAutoSizeText = false; 1832 } 1833 1834 // Returns distinct sorted positive values. 1835 private int[] cleanupAutoSizePresetSizes(int[] presetValues) { 1836 final int presetValuesLength = presetValues.length; 1837 if (presetValuesLength == 0) { 1838 return presetValues; 1839 } 1840 Arrays.sort(presetValues); 1841 1842 final IntArray uniqueValidSizes = new IntArray(); 1843 for (int i = 0; i < presetValuesLength; i++) { 1844 final int currentPresetValue = presetValues[i]; 1845 1846 if (currentPresetValue > 0 1847 && uniqueValidSizes.binarySearch(currentPresetValue) < 0) { 1848 uniqueValidSizes.add(currentPresetValue); 1849 } 1850 } 1851 1852 return presetValuesLength == uniqueValidSizes.size() 1853 ? presetValues 1854 : uniqueValidSizes.toArray(); 1855 } 1856 1857 private boolean setupAutoSizeText() { 1858 if (supportsAutoSizeText() && mAutoSizeTextType == AUTO_SIZE_TEXT_TYPE_UNIFORM) { 1859 // Calculate the sizes set based on minimum size, maximum size and step size if we do 1860 // not have a predefined set of sizes or if the current sizes array is empty. 1861 if (!mHasPresetAutoSizeValues || mAutoSizeTextSizesInPx.length == 0) { 1862 int autoSizeValuesLength = 1; 1863 float currentSize = Math.round(mAutoSizeMinTextSizeInPx); 1864 while (Math.round(currentSize + mAutoSizeStepGranularityInPx) 1865 <= Math.round(mAutoSizeMaxTextSizeInPx)) { 1866 autoSizeValuesLength++; 1867 currentSize += mAutoSizeStepGranularityInPx; 1868 } 1869 1870 int[] autoSizeTextSizesInPx = new int[autoSizeValuesLength]; 1871 float sizeToAdd = mAutoSizeMinTextSizeInPx; 1872 for (int i = 0; i < autoSizeValuesLength; i++) { 1873 autoSizeTextSizesInPx[i] = Math.round(sizeToAdd); 1874 sizeToAdd += mAutoSizeStepGranularityInPx; 1875 } 1876 mAutoSizeTextSizesInPx = cleanupAutoSizePresetSizes(autoSizeTextSizesInPx); 1877 } 1878 1879 mNeedsAutoSizeText = true; 1880 } else { 1881 mNeedsAutoSizeText = false; 1882 } 1883 1884 return mNeedsAutoSizeText; 1885 } 1886 1887 private int[] parseDimensionArray(TypedArray dimens) { 1888 if (dimens == null) { 1889 return null; 1890 } 1891 int[] result = new int[dimens.length()]; 1892 for (int i = 0; i < result.length; i++) { 1893 result[i] = dimens.getDimensionPixelSize(i, 0); 1894 } 1895 return result; 1896 } 1897 1898 /** 1899 * @hide 1900 */ 1901 @Override 1902 public void onActivityResult(int requestCode, int resultCode, Intent data) { 1903 if (requestCode == PROCESS_TEXT_REQUEST_CODE) { 1904 if (resultCode == Activity.RESULT_OK && data != null) { 1905 CharSequence result = data.getCharSequenceExtra(Intent.EXTRA_PROCESS_TEXT); 1906 if (result != null) { 1907 if (isTextEditable()) { 1908 replaceSelectionWithText(result); 1909 if (mEditor != null) { 1910 mEditor.refreshTextActionMode(); 1911 } 1912 } else { 1913 if (result.length() > 0) { 1914 Toast.makeText(getContext(), String.valueOf(result), Toast.LENGTH_LONG) 1915 .show(); 1916 } 1917 } 1918 } 1919 } else if (mText instanceof Spannable) { 1920 // Reset the selection. 1921 Selection.setSelection((Spannable) mText, getSelectionEnd()); 1922 } 1923 } 1924 } 1925 1926 private void setTypefaceFromAttrs(Typeface fontTypeface, String familyName, int typefaceIndex, 1927 int styleIndex) { 1928 Typeface tf = fontTypeface; 1929 if (tf == null && familyName != null) { 1930 tf = Typeface.create(familyName, styleIndex); 1931 } else if (tf != null && tf.getStyle() != styleIndex) { 1932 tf = Typeface.create(tf, styleIndex); 1933 } 1934 if (tf != null) { 1935 setTypeface(tf); 1936 return; 1937 } 1938 switch (typefaceIndex) { 1939 case SANS: 1940 tf = Typeface.SANS_SERIF; 1941 break; 1942 1943 case SERIF: 1944 tf = Typeface.SERIF; 1945 break; 1946 1947 case MONOSPACE: 1948 tf = Typeface.MONOSPACE; 1949 break; 1950 } 1951 1952 setTypeface(tf, styleIndex); 1953 } 1954 1955 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 1956 boolean hasRelativeDrawables = (start != null) || (end != null); 1957 if (hasRelativeDrawables) { 1958 Drawables dr = mDrawables; 1959 if (dr == null) { 1960 mDrawables = dr = new Drawables(getContext()); 1961 } 1962 mDrawables.mOverride = true; 1963 final Rect compoundRect = dr.mCompoundRect; 1964 int[] state = getDrawableState(); 1965 if (start != null) { 1966 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1967 start.setState(state); 1968 start.copyBounds(compoundRect); 1969 start.setCallback(this); 1970 1971 dr.mDrawableStart = start; 1972 dr.mDrawableSizeStart = compoundRect.width(); 1973 dr.mDrawableHeightStart = compoundRect.height(); 1974 } else { 1975 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1976 } 1977 if (end != null) { 1978 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1979 end.setState(state); 1980 end.copyBounds(compoundRect); 1981 end.setCallback(this); 1982 1983 dr.mDrawableEnd = end; 1984 dr.mDrawableSizeEnd = compoundRect.width(); 1985 dr.mDrawableHeightEnd = compoundRect.height(); 1986 } else { 1987 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1988 } 1989 resetResolvedDrawables(); 1990 resolveDrawables(); 1991 applyCompoundDrawableTint(); 1992 } 1993 } 1994 1995 @android.view.RemotableViewMethod 1996 @Override 1997 public void setEnabled(boolean enabled) { 1998 if (enabled == isEnabled()) { 1999 return; 2000 } 2001 2002 if (!enabled) { 2003 // Hide the soft input if the currently active TextView is disabled 2004 InputMethodManager imm = InputMethodManager.peekInstance(); 2005 if (imm != null && imm.isActive(this)) { 2006 imm.hideSoftInputFromWindow(getWindowToken(), 0); 2007 } 2008 } 2009 2010 super.setEnabled(enabled); 2011 2012 if (enabled) { 2013 // Make sure IME is updated with current editor info. 2014 InputMethodManager imm = InputMethodManager.peekInstance(); 2015 if (imm != null) imm.restartInput(this); 2016 } 2017 2018 // Will change text color 2019 if (mEditor != null) { 2020 mEditor.invalidateTextDisplayList(); 2021 mEditor.prepareCursorControllers(); 2022 2023 // start or stop the cursor blinking as appropriate 2024 mEditor.makeBlink(); 2025 } 2026 } 2027 2028 /** 2029 * Sets the typeface and style in which the text should be displayed, 2030 * and turns on the fake bold and italic bits in the Paint if the 2031 * Typeface that you provided does not have all the bits in the 2032 * style that you specified. 2033 * 2034 * @attr ref android.R.styleable#TextView_typeface 2035 * @attr ref android.R.styleable#TextView_textStyle 2036 */ 2037 public void setTypeface(Typeface tf, int style) { 2038 if (style > 0) { 2039 if (tf == null) { 2040 tf = Typeface.defaultFromStyle(style); 2041 } else { 2042 tf = Typeface.create(tf, style); 2043 } 2044 2045 setTypeface(tf); 2046 // now compute what (if any) algorithmic styling is needed 2047 int typefaceStyle = tf != null ? tf.getStyle() : 0; 2048 int need = style & ~typefaceStyle; 2049 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 2050 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 2051 } else { 2052 mTextPaint.setFakeBoldText(false); 2053 mTextPaint.setTextSkewX(0); 2054 setTypeface(tf); 2055 } 2056 } 2057 2058 /** 2059 * Subclasses override this to specify that they have a KeyListener 2060 * by default even if not specifically called for in the XML options. 2061 */ 2062 protected boolean getDefaultEditable() { 2063 return false; 2064 } 2065 2066 /** 2067 * Subclasses override this to specify a default movement method. 2068 */ 2069 protected MovementMethod getDefaultMovementMethod() { 2070 return null; 2071 } 2072 2073 /** 2074 * Return the text that TextView is displaying. If {@link #setText(CharSequence)} was called 2075 * with an argument of {@link android.widget.TextView.BufferType#SPANNABLE BufferType.SPANNABLE} 2076 * or {@link android.widget.TextView.BufferType#EDITABLE BufferType.EDITABLE}, you can cast 2077 * the return value from this method to Spannable or Editable, respectively. 2078 * 2079 * <p>The content of the return value should not be modified. If you want a modifiable one, you 2080 * should make your own copy first.</p> 2081 * 2082 * @return The text displayed by the text view. 2083 * @attr ref android.R.styleable#TextView_text 2084 */ 2085 @ViewDebug.CapturedViewProperty 2086 public CharSequence getText() { 2087 return mText; 2088 } 2089 2090 /** 2091 * Returns the length, in characters, of the text managed by this TextView 2092 * @return The length of the text managed by the TextView in characters. 2093 */ 2094 public int length() { 2095 return mText.length(); 2096 } 2097 2098 /** 2099 * Return the text that TextView is displaying as an Editable object. If the text is not 2100 * editable, null is returned. 2101 * 2102 * @see #getText 2103 */ 2104 public Editable getEditableText() { 2105 return (mText instanceof Editable) ? (Editable) mText : null; 2106 } 2107 2108 /** 2109 * Gets the vertical distance between lines of text, in pixels. 2110 * Note that markup within the text can cause individual lines 2111 * to be taller or shorter than this height, and the layout may 2112 * contain additional first-or last-line padding. 2113 * @return The height of one standard line in pixels. 2114 */ 2115 public int getLineHeight() { 2116 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 2117 } 2118 2119 /** 2120 * Gets the {@link android.text.Layout} that is currently being used to display the text. 2121 * This value can be null if the text or width has recently changed. 2122 * @return The Layout that is currently being used to display the text. 2123 */ 2124 public final Layout getLayout() { 2125 return mLayout; 2126 } 2127 2128 /** 2129 * @return the {@link android.text.Layout} that is currently being used to 2130 * display the hint text. This can be null. 2131 */ 2132 final Layout getHintLayout() { 2133 return mHintLayout; 2134 } 2135 2136 /** 2137 * Retrieve the {@link android.content.UndoManager} that is currently associated 2138 * with this TextView. By default there is no associated UndoManager, so null 2139 * is returned. One can be associated with the TextView through 2140 * {@link #setUndoManager(android.content.UndoManager, String)} 2141 * 2142 * @hide 2143 */ 2144 public final UndoManager getUndoManager() { 2145 // TODO: Consider supporting a global undo manager. 2146 throw new UnsupportedOperationException("not implemented"); 2147 } 2148 2149 2150 /** 2151 * @hide 2152 */ 2153 @VisibleForTesting 2154 public final Editor getEditorForTesting() { 2155 return mEditor; 2156 } 2157 2158 /** 2159 * Associate an {@link android.content.UndoManager} with this TextView. Once 2160 * done, all edit operations on the TextView will result in appropriate 2161 * {@link android.content.UndoOperation} objects pushed on the given UndoManager's 2162 * stack. 2163 * 2164 * @param undoManager The {@link android.content.UndoManager} to associate with 2165 * this TextView, or null to clear any existing association. 2166 * @param tag String tag identifying this particular TextView owner in the 2167 * UndoManager. This is used to keep the correct association with the 2168 * {@link android.content.UndoOwner} of any operations inside of the UndoManager. 2169 * 2170 * @hide 2171 */ 2172 public final void setUndoManager(UndoManager undoManager, String tag) { 2173 // TODO: Consider supporting a global undo manager. An implementation will need to: 2174 // * createEditorIfNeeded() 2175 // * Promote to BufferType.EDITABLE if needed. 2176 // * Update the UndoManager and UndoOwner. 2177 // Likewise it will need to be able to restore the default UndoManager. 2178 throw new UnsupportedOperationException("not implemented"); 2179 } 2180 2181 /** 2182 * Gets the current {@link KeyListener} for the TextView. 2183 * This will frequently be null for non-EditText TextViews. 2184 * @return the current key listener for this TextView. 2185 * 2186 * @attr ref android.R.styleable#TextView_numeric 2187 * @attr ref android.R.styleable#TextView_digits 2188 * @attr ref android.R.styleable#TextView_phoneNumber 2189 * @attr ref android.R.styleable#TextView_inputMethod 2190 * @attr ref android.R.styleable#TextView_capitalize 2191 * @attr ref android.R.styleable#TextView_autoText 2192 */ 2193 public final KeyListener getKeyListener() { 2194 return mEditor == null ? null : mEditor.mKeyListener; 2195 } 2196 2197 /** 2198 * Sets the key listener to be used with this TextView. This can be null 2199 * to disallow user input. Note that this method has significant and 2200 * subtle interactions with soft keyboards and other input method: 2201 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 2202 * for important details. Calling this method will replace the current 2203 * content type of the text view with the content type returned by the 2204 * key listener. 2205 * <p> 2206 * Be warned that if you want a TextView with a key listener or movement 2207 * method not to be focusable, or if you want a TextView without a 2208 * key listener or movement method to be focusable, you must call 2209 * {@link #setFocusable} again after calling this to get the focusability 2210 * back the way you want it. 2211 * 2212 * @attr ref android.R.styleable#TextView_numeric 2213 * @attr ref android.R.styleable#TextView_digits 2214 * @attr ref android.R.styleable#TextView_phoneNumber 2215 * @attr ref android.R.styleable#TextView_inputMethod 2216 * @attr ref android.R.styleable#TextView_capitalize 2217 * @attr ref android.R.styleable#TextView_autoText 2218 */ 2219 public void setKeyListener(KeyListener input) { 2220 mListenerChanged = true; 2221 setKeyListenerOnly(input); 2222 fixFocusableAndClickableSettings(); 2223 2224 if (input != null) { 2225 createEditorIfNeeded(); 2226 setInputTypeFromEditor(); 2227 } else { 2228 if (mEditor != null) mEditor.mInputType = EditorInfo.TYPE_NULL; 2229 } 2230 2231 InputMethodManager imm = InputMethodManager.peekInstance(); 2232 if (imm != null) imm.restartInput(this); 2233 } 2234 2235 private void setInputTypeFromEditor() { 2236 try { 2237 mEditor.mInputType = mEditor.mKeyListener.getInputType(); 2238 } catch (IncompatibleClassChangeError e) { 2239 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 2240 } 2241 // Change inputType, without affecting transformation. 2242 // No need to applySingleLine since mSingleLine is unchanged. 2243 setInputTypeSingleLine(mSingleLine); 2244 } 2245 2246 private void setKeyListenerOnly(KeyListener input) { 2247 if (mEditor == null && input == null) return; // null is the default value 2248 2249 createEditorIfNeeded(); 2250 if (mEditor.mKeyListener != input) { 2251 mEditor.mKeyListener = input; 2252 if (input != null && !(mText instanceof Editable)) { 2253 setText(mText); 2254 } 2255 2256 setFilters((Editable) mText, mFilters); 2257 } 2258 } 2259 2260 /** 2261 * Gets the {@link android.text.method.MovementMethod} being used for this TextView, 2262 * which provides positioning, scrolling, and text selection functionality. 2263 * This will frequently be null for non-EditText TextViews. 2264 * @return the movement method being used for this TextView. 2265 * @see android.text.method.MovementMethod 2266 */ 2267 public final MovementMethod getMovementMethod() { 2268 return mMovement; 2269 } 2270 2271 /** 2272 * Sets the {@link android.text.method.MovementMethod} for handling arrow key movement 2273 * for this TextView. This can be null to disallow using the arrow keys to move the 2274 * cursor or scroll the view. 2275 * <p> 2276 * Be warned that if you want a TextView with a key listener or movement 2277 * method not to be focusable, or if you want a TextView without a 2278 * key listener or movement method to be focusable, you must call 2279 * {@link #setFocusable} again after calling this to get the focusability 2280 * back the way you want it. 2281 */ 2282 public final void setMovementMethod(MovementMethod movement) { 2283 if (mMovement != movement) { 2284 mMovement = movement; 2285 2286 if (movement != null && !(mText instanceof Spannable)) { 2287 setText(mText); 2288 } 2289 2290 fixFocusableAndClickableSettings(); 2291 2292 // SelectionModifierCursorController depends on textCanBeSelected, which depends on 2293 // mMovement 2294 if (mEditor != null) mEditor.prepareCursorControllers(); 2295 } 2296 } 2297 2298 private void fixFocusableAndClickableSettings() { 2299 if (mMovement != null || (mEditor != null && mEditor.mKeyListener != null)) { 2300 setFocusable(FOCUSABLE); 2301 setClickable(true); 2302 setLongClickable(true); 2303 } else { 2304 setFocusable(FOCUSABLE_AUTO); 2305 setClickable(false); 2306 setLongClickable(false); 2307 } 2308 } 2309 2310 /** 2311 * Gets the current {@link android.text.method.TransformationMethod} for the TextView. 2312 * This is frequently null, except for single-line and password fields. 2313 * @return the current transformation method for this TextView. 2314 * 2315 * @attr ref android.R.styleable#TextView_password 2316 * @attr ref android.R.styleable#TextView_singleLine 2317 */ 2318 public final TransformationMethod getTransformationMethod() { 2319 return mTransformation; 2320 } 2321 2322 /** 2323 * Sets the transformation that is applied to the text that this 2324 * TextView is displaying. 2325 * 2326 * @attr ref android.R.styleable#TextView_password 2327 * @attr ref android.R.styleable#TextView_singleLine 2328 */ 2329 public final void setTransformationMethod(TransformationMethod method) { 2330 if (method == mTransformation) { 2331 // Avoid the setText() below if the transformation is 2332 // the same. 2333 return; 2334 } 2335 if (mTransformation != null) { 2336 if (mText instanceof Spannable) { 2337 ((Spannable) mText).removeSpan(mTransformation); 2338 } 2339 } 2340 2341 mTransformation = method; 2342 2343 if (method instanceof TransformationMethod2) { 2344 TransformationMethod2 method2 = (TransformationMethod2) method; 2345 mAllowTransformationLengthChange = !isTextSelectable() && !(mText instanceof Editable); 2346 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 2347 } else { 2348 mAllowTransformationLengthChange = false; 2349 } 2350 2351 setText(mText); 2352 2353 if (hasPasswordTransformationMethod()) { 2354 notifyViewAccessibilityStateChangedIfNeeded( 2355 AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED); 2356 } 2357 2358 // PasswordTransformationMethod always have LTR text direction heuristics returned by 2359 // getTextDirectionHeuristic, needs reset 2360 mTextDir = getTextDirectionHeuristic(); 2361 } 2362 2363 /** 2364 * Returns the top padding of the view, plus space for the top 2365 * Drawable if any. 2366 */ 2367 public int getCompoundPaddingTop() { 2368 final Drawables dr = mDrawables; 2369 if (dr == null || dr.mShowing[Drawables.TOP] == null) { 2370 return mPaddingTop; 2371 } else { 2372 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 2373 } 2374 } 2375 2376 /** 2377 * Returns the bottom padding of the view, plus space for the bottom 2378 * Drawable if any. 2379 */ 2380 public int getCompoundPaddingBottom() { 2381 final Drawables dr = mDrawables; 2382 if (dr == null || dr.mShowing[Drawables.BOTTOM] == null) { 2383 return mPaddingBottom; 2384 } else { 2385 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 2386 } 2387 } 2388 2389 /** 2390 * Returns the left padding of the view, plus space for the left 2391 * Drawable if any. 2392 */ 2393 public int getCompoundPaddingLeft() { 2394 final Drawables dr = mDrawables; 2395 if (dr == null || dr.mShowing[Drawables.LEFT] == null) { 2396 return mPaddingLeft; 2397 } else { 2398 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 2399 } 2400 } 2401 2402 /** 2403 * Returns the right padding of the view, plus space for the right 2404 * Drawable if any. 2405 */ 2406 public int getCompoundPaddingRight() { 2407 final Drawables dr = mDrawables; 2408 if (dr == null || dr.mShowing[Drawables.RIGHT] == null) { 2409 return mPaddingRight; 2410 } else { 2411 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 2412 } 2413 } 2414 2415 /** 2416 * Returns the start padding of the view, plus space for the start 2417 * Drawable if any. 2418 */ 2419 public int getCompoundPaddingStart() { 2420 resolveDrawables(); 2421 switch(getLayoutDirection()) { 2422 default: 2423 case LAYOUT_DIRECTION_LTR: 2424 return getCompoundPaddingLeft(); 2425 case LAYOUT_DIRECTION_RTL: 2426 return getCompoundPaddingRight(); 2427 } 2428 } 2429 2430 /** 2431 * Returns the end padding of the view, plus space for the end 2432 * Drawable if any. 2433 */ 2434 public int getCompoundPaddingEnd() { 2435 resolveDrawables(); 2436 switch(getLayoutDirection()) { 2437 default: 2438 case LAYOUT_DIRECTION_LTR: 2439 return getCompoundPaddingRight(); 2440 case LAYOUT_DIRECTION_RTL: 2441 return getCompoundPaddingLeft(); 2442 } 2443 } 2444 2445 /** 2446 * Returns the extended top padding of the view, including both the 2447 * top Drawable if any and any extra space to keep more than maxLines 2448 * of text from showing. It is only valid to call this after measuring. 2449 */ 2450 public int getExtendedPaddingTop() { 2451 if (mMaxMode != LINES) { 2452 return getCompoundPaddingTop(); 2453 } 2454 2455 if (mLayout == null) { 2456 assumeLayout(); 2457 } 2458 2459 if (mLayout.getLineCount() <= mMaximum) { 2460 return getCompoundPaddingTop(); 2461 } 2462 2463 int top = getCompoundPaddingTop(); 2464 int bottom = getCompoundPaddingBottom(); 2465 int viewht = getHeight() - top - bottom; 2466 int layoutht = mLayout.getLineTop(mMaximum); 2467 2468 if (layoutht >= viewht) { 2469 return top; 2470 } 2471 2472 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 2473 if (gravity == Gravity.TOP) { 2474 return top; 2475 } else if (gravity == Gravity.BOTTOM) { 2476 return top + viewht - layoutht; 2477 } else { // (gravity == Gravity.CENTER_VERTICAL) 2478 return top + (viewht - layoutht) / 2; 2479 } 2480 } 2481 2482 /** 2483 * Returns the extended bottom padding of the view, including both the 2484 * bottom Drawable if any and any extra space to keep more than maxLines 2485 * of text from showing. It is only valid to call this after measuring. 2486 */ 2487 public int getExtendedPaddingBottom() { 2488 if (mMaxMode != LINES) { 2489 return getCompoundPaddingBottom(); 2490 } 2491 2492 if (mLayout == null) { 2493 assumeLayout(); 2494 } 2495 2496 if (mLayout.getLineCount() <= mMaximum) { 2497 return getCompoundPaddingBottom(); 2498 } 2499 2500 int top = getCompoundPaddingTop(); 2501 int bottom = getCompoundPaddingBottom(); 2502 int viewht = getHeight() - top - bottom; 2503 int layoutht = mLayout.getLineTop(mMaximum); 2504 2505 if (layoutht >= viewht) { 2506 return bottom; 2507 } 2508 2509 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 2510 if (gravity == Gravity.TOP) { 2511 return bottom + viewht - layoutht; 2512 } else if (gravity == Gravity.BOTTOM) { 2513 return bottom; 2514 } else { // (gravity == Gravity.CENTER_VERTICAL) 2515 return bottom + (viewht - layoutht) / 2; 2516 } 2517 } 2518 2519 /** 2520 * Returns the total left padding of the view, including the left 2521 * Drawable if any. 2522 */ 2523 public int getTotalPaddingLeft() { 2524 return getCompoundPaddingLeft(); 2525 } 2526 2527 /** 2528 * Returns the total right padding of the view, including the right 2529 * Drawable if any. 2530 */ 2531 public int getTotalPaddingRight() { 2532 return getCompoundPaddingRight(); 2533 } 2534 2535 /** 2536 * Returns the total start padding of the view, including the start 2537 * Drawable if any. 2538 */ 2539 public int getTotalPaddingStart() { 2540 return getCompoundPaddingStart(); 2541 } 2542 2543 /** 2544 * Returns the total end padding of the view, including the end 2545 * Drawable if any. 2546 */ 2547 public int getTotalPaddingEnd() { 2548 return getCompoundPaddingEnd(); 2549 } 2550 2551 /** 2552 * Returns the total top padding of the view, including the top 2553 * Drawable if any, the extra space to keep more than maxLines 2554 * from showing, and the vertical offset for gravity, if any. 2555 */ 2556 public int getTotalPaddingTop() { 2557 return getExtendedPaddingTop() + getVerticalOffset(true); 2558 } 2559 2560 /** 2561 * Returns the total bottom padding of the view, including the bottom 2562 * Drawable if any, the extra space to keep more than maxLines 2563 * from showing, and the vertical offset for gravity, if any. 2564 */ 2565 public int getTotalPaddingBottom() { 2566 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 2567 } 2568 2569 /** 2570 * Sets the Drawables (if any) to appear to the left of, above, to the 2571 * right of, and below the text. Use {@code null} if you do not want a 2572 * Drawable there. The Drawables must already have had 2573 * {@link Drawable#setBounds} called. 2574 * <p> 2575 * Calling this method will overwrite any Drawables previously set using 2576 * {@link #setCompoundDrawablesRelative} or related methods. 2577 * 2578 * @attr ref android.R.styleable#TextView_drawableLeft 2579 * @attr ref android.R.styleable#TextView_drawableTop 2580 * @attr ref android.R.styleable#TextView_drawableRight 2581 * @attr ref android.R.styleable#TextView_drawableBottom 2582 */ 2583 public void setCompoundDrawables(@Nullable Drawable left, @Nullable Drawable top, 2584 @Nullable Drawable right, @Nullable Drawable bottom) { 2585 Drawables dr = mDrawables; 2586 2587 // We're switching to absolute, discard relative. 2588 if (dr != null) { 2589 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 2590 dr.mDrawableStart = null; 2591 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 2592 dr.mDrawableEnd = null; 2593 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2594 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2595 } 2596 2597 final boolean drawables = left != null || top != null || right != null || bottom != null; 2598 if (!drawables) { 2599 // Clearing drawables... can we free the data structure? 2600 if (dr != null) { 2601 if (!dr.hasMetadata()) { 2602 mDrawables = null; 2603 } else { 2604 // We need to retain the last set padding, so just clear 2605 // out all of the fields in the existing structure. 2606 for (int i = dr.mShowing.length - 1; i >= 0; i--) { 2607 if (dr.mShowing[i] != null) { 2608 dr.mShowing[i].setCallback(null); 2609 } 2610 dr.mShowing[i] = null; 2611 } 2612 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2613 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2614 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2615 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2616 } 2617 } 2618 } else { 2619 if (dr == null) { 2620 mDrawables = dr = new Drawables(getContext()); 2621 } 2622 2623 mDrawables.mOverride = false; 2624 2625 if (dr.mShowing[Drawables.LEFT] != left && dr.mShowing[Drawables.LEFT] != null) { 2626 dr.mShowing[Drawables.LEFT].setCallback(null); 2627 } 2628 dr.mShowing[Drawables.LEFT] = left; 2629 2630 if (dr.mShowing[Drawables.TOP] != top && dr.mShowing[Drawables.TOP] != null) { 2631 dr.mShowing[Drawables.TOP].setCallback(null); 2632 } 2633 dr.mShowing[Drawables.TOP] = top; 2634 2635 if (dr.mShowing[Drawables.RIGHT] != right && dr.mShowing[Drawables.RIGHT] != null) { 2636 dr.mShowing[Drawables.RIGHT].setCallback(null); 2637 } 2638 dr.mShowing[Drawables.RIGHT] = right; 2639 2640 if (dr.mShowing[Drawables.BOTTOM] != bottom && dr.mShowing[Drawables.BOTTOM] != null) { 2641 dr.mShowing[Drawables.BOTTOM].setCallback(null); 2642 } 2643 dr.mShowing[Drawables.BOTTOM] = bottom; 2644 2645 final Rect compoundRect = dr.mCompoundRect; 2646 int[] state; 2647 2648 state = getDrawableState(); 2649 2650 if (left != null) { 2651 left.setState(state); 2652 left.copyBounds(compoundRect); 2653 left.setCallback(this); 2654 dr.mDrawableSizeLeft = compoundRect.width(); 2655 dr.mDrawableHeightLeft = compoundRect.height(); 2656 } else { 2657 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2658 } 2659 2660 if (right != null) { 2661 right.setState(state); 2662 right.copyBounds(compoundRect); 2663 right.setCallback(this); 2664 dr.mDrawableSizeRight = compoundRect.width(); 2665 dr.mDrawableHeightRight = compoundRect.height(); 2666 } else { 2667 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2668 } 2669 2670 if (top != null) { 2671 top.setState(state); 2672 top.copyBounds(compoundRect); 2673 top.setCallback(this); 2674 dr.mDrawableSizeTop = compoundRect.height(); 2675 dr.mDrawableWidthTop = compoundRect.width(); 2676 } else { 2677 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2678 } 2679 2680 if (bottom != null) { 2681 bottom.setState(state); 2682 bottom.copyBounds(compoundRect); 2683 bottom.setCallback(this); 2684 dr.mDrawableSizeBottom = compoundRect.height(); 2685 dr.mDrawableWidthBottom = compoundRect.width(); 2686 } else { 2687 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2688 } 2689 } 2690 2691 // Save initial left/right drawables 2692 if (dr != null) { 2693 dr.mDrawableLeftInitial = left; 2694 dr.mDrawableRightInitial = right; 2695 } 2696 2697 resetResolvedDrawables(); 2698 resolveDrawables(); 2699 applyCompoundDrawableTint(); 2700 invalidate(); 2701 requestLayout(); 2702 } 2703 2704 /** 2705 * Sets the Drawables (if any) to appear to the left of, above, to the 2706 * right of, and below the text. Use 0 if you do not want a Drawable there. 2707 * The Drawables' bounds will be set to their intrinsic bounds. 2708 * <p> 2709 * Calling this method will overwrite any Drawables previously set using 2710 * {@link #setCompoundDrawablesRelative} or related methods. 2711 * 2712 * @param left Resource identifier of the left Drawable. 2713 * @param top Resource identifier of the top Drawable. 2714 * @param right Resource identifier of the right Drawable. 2715 * @param bottom Resource identifier of the bottom Drawable. 2716 * 2717 * @attr ref android.R.styleable#TextView_drawableLeft 2718 * @attr ref android.R.styleable#TextView_drawableTop 2719 * @attr ref android.R.styleable#TextView_drawableRight 2720 * @attr ref android.R.styleable#TextView_drawableBottom 2721 */ 2722 @android.view.RemotableViewMethod 2723 public void setCompoundDrawablesWithIntrinsicBounds(@DrawableRes int left, 2724 @DrawableRes int top, @DrawableRes int right, @DrawableRes int bottom) { 2725 final Context context = getContext(); 2726 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? context.getDrawable(left) : null, 2727 top != 0 ? context.getDrawable(top) : null, 2728 right != 0 ? context.getDrawable(right) : null, 2729 bottom != 0 ? context.getDrawable(bottom) : null); 2730 } 2731 2732 /** 2733 * Sets the Drawables (if any) to appear to the left of, above, to the 2734 * right of, and below the text. Use {@code null} if you do not want a 2735 * Drawable there. The Drawables' bounds will be set to their intrinsic 2736 * bounds. 2737 * <p> 2738 * Calling this method will overwrite any Drawables previously set using 2739 * {@link #setCompoundDrawablesRelative} or related methods. 2740 * 2741 * @attr ref android.R.styleable#TextView_drawableLeft 2742 * @attr ref android.R.styleable#TextView_drawableTop 2743 * @attr ref android.R.styleable#TextView_drawableRight 2744 * @attr ref android.R.styleable#TextView_drawableBottom 2745 */ 2746 @android.view.RemotableViewMethod 2747 public void setCompoundDrawablesWithIntrinsicBounds(@Nullable Drawable left, 2748 @Nullable Drawable top, @Nullable Drawable right, @Nullable Drawable bottom) { 2749 2750 if (left != null) { 2751 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 2752 } 2753 if (right != null) { 2754 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 2755 } 2756 if (top != null) { 2757 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 2758 } 2759 if (bottom != null) { 2760 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2761 } 2762 setCompoundDrawables(left, top, right, bottom); 2763 } 2764 2765 /** 2766 * Sets the Drawables (if any) to appear to the start of, above, to the end 2767 * of, and below the text. Use {@code null} if you do not want a Drawable 2768 * there. The Drawables must already have had {@link Drawable#setBounds} 2769 * called. 2770 * <p> 2771 * Calling this method will overwrite any Drawables previously set using 2772 * {@link #setCompoundDrawables} or related methods. 2773 * 2774 * @attr ref android.R.styleable#TextView_drawableStart 2775 * @attr ref android.R.styleable#TextView_drawableTop 2776 * @attr ref android.R.styleable#TextView_drawableEnd 2777 * @attr ref android.R.styleable#TextView_drawableBottom 2778 */ 2779 @android.view.RemotableViewMethod 2780 public void setCompoundDrawablesRelative(@Nullable Drawable start, @Nullable Drawable top, 2781 @Nullable Drawable end, @Nullable Drawable bottom) { 2782 Drawables dr = mDrawables; 2783 2784 // We're switching to relative, discard absolute. 2785 if (dr != null) { 2786 if (dr.mShowing[Drawables.LEFT] != null) { 2787 dr.mShowing[Drawables.LEFT].setCallback(null); 2788 } 2789 dr.mShowing[Drawables.LEFT] = dr.mDrawableLeftInitial = null; 2790 if (dr.mShowing[Drawables.RIGHT] != null) { 2791 dr.mShowing[Drawables.RIGHT].setCallback(null); 2792 } 2793 dr.mShowing[Drawables.RIGHT] = dr.mDrawableRightInitial = null; 2794 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2795 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2796 } 2797 2798 final boolean drawables = start != null || top != null 2799 || end != null || bottom != null; 2800 2801 if (!drawables) { 2802 // Clearing drawables... can we free the data structure? 2803 if (dr != null) { 2804 if (!dr.hasMetadata()) { 2805 mDrawables = null; 2806 } else { 2807 // We need to retain the last set padding, so just clear 2808 // out all of the fields in the existing structure. 2809 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 2810 dr.mDrawableStart = null; 2811 if (dr.mShowing[Drawables.TOP] != null) { 2812 dr.mShowing[Drawables.TOP].setCallback(null); 2813 } 2814 dr.mShowing[Drawables.TOP] = null; 2815 if (dr.mDrawableEnd != null) { 2816 dr.mDrawableEnd.setCallback(null); 2817 } 2818 dr.mDrawableEnd = null; 2819 if (dr.mShowing[Drawables.BOTTOM] != null) { 2820 dr.mShowing[Drawables.BOTTOM].setCallback(null); 2821 } 2822 dr.mShowing[Drawables.BOTTOM] = null; 2823 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2824 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2825 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2826 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2827 } 2828 } 2829 } else { 2830 if (dr == null) { 2831 mDrawables = dr = new Drawables(getContext()); 2832 } 2833 2834 mDrawables.mOverride = true; 2835 2836 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 2837 dr.mDrawableStart.setCallback(null); 2838 } 2839 dr.mDrawableStart = start; 2840 2841 if (dr.mShowing[Drawables.TOP] != top && dr.mShowing[Drawables.TOP] != null) { 2842 dr.mShowing[Drawables.TOP].setCallback(null); 2843 } 2844 dr.mShowing[Drawables.TOP] = top; 2845 2846 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 2847 dr.mDrawableEnd.setCallback(null); 2848 } 2849 dr.mDrawableEnd = end; 2850 2851 if (dr.mShowing[Drawables.BOTTOM] != bottom && dr.mShowing[Drawables.BOTTOM] != null) { 2852 dr.mShowing[Drawables.BOTTOM].setCallback(null); 2853 } 2854 dr.mShowing[Drawables.BOTTOM] = bottom; 2855 2856 final Rect compoundRect = dr.mCompoundRect; 2857 int[] state; 2858 2859 state = getDrawableState(); 2860 2861 if (start != null) { 2862 start.setState(state); 2863 start.copyBounds(compoundRect); 2864 start.setCallback(this); 2865 dr.mDrawableSizeStart = compoundRect.width(); 2866 dr.mDrawableHeightStart = compoundRect.height(); 2867 } else { 2868 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2869 } 2870 2871 if (end != null) { 2872 end.setState(state); 2873 end.copyBounds(compoundRect); 2874 end.setCallback(this); 2875 dr.mDrawableSizeEnd = compoundRect.width(); 2876 dr.mDrawableHeightEnd = compoundRect.height(); 2877 } else { 2878 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2879 } 2880 2881 if (top != null) { 2882 top.setState(state); 2883 top.copyBounds(compoundRect); 2884 top.setCallback(this); 2885 dr.mDrawableSizeTop = compoundRect.height(); 2886 dr.mDrawableWidthTop = compoundRect.width(); 2887 } else { 2888 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2889 } 2890 2891 if (bottom != null) { 2892 bottom.setState(state); 2893 bottom.copyBounds(compoundRect); 2894 bottom.setCallback(this); 2895 dr.mDrawableSizeBottom = compoundRect.height(); 2896 dr.mDrawableWidthBottom = compoundRect.width(); 2897 } else { 2898 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2899 } 2900 } 2901 2902 resetResolvedDrawables(); 2903 resolveDrawables(); 2904 invalidate(); 2905 requestLayout(); 2906 } 2907 2908 /** 2909 * Sets the Drawables (if any) to appear to the start of, above, to the end 2910 * of, and below the text. Use 0 if you do not want a Drawable there. The 2911 * Drawables' bounds will be set to their intrinsic bounds. 2912 * <p> 2913 * Calling this method will overwrite any Drawables previously set using 2914 * {@link #setCompoundDrawables} or related methods. 2915 * 2916 * @param start Resource identifier of the start Drawable. 2917 * @param top Resource identifier of the top Drawable. 2918 * @param end Resource identifier of the end Drawable. 2919 * @param bottom Resource identifier of the bottom Drawable. 2920 * 2921 * @attr ref android.R.styleable#TextView_drawableStart 2922 * @attr ref android.R.styleable#TextView_drawableTop 2923 * @attr ref android.R.styleable#TextView_drawableEnd 2924 * @attr ref android.R.styleable#TextView_drawableBottom 2925 */ 2926 @android.view.RemotableViewMethod 2927 public void setCompoundDrawablesRelativeWithIntrinsicBounds(@DrawableRes int start, 2928 @DrawableRes int top, @DrawableRes int end, @DrawableRes int bottom) { 2929 final Context context = getContext(); 2930 setCompoundDrawablesRelativeWithIntrinsicBounds( 2931 start != 0 ? context.getDrawable(start) : null, 2932 top != 0 ? context.getDrawable(top) : null, 2933 end != 0 ? context.getDrawable(end) : null, 2934 bottom != 0 ? context.getDrawable(bottom) : null); 2935 } 2936 2937 /** 2938 * Sets the Drawables (if any) to appear to the start of, above, to the end 2939 * of, and below the text. Use {@code null} if you do not want a Drawable 2940 * there. The Drawables' bounds will be set to their intrinsic bounds. 2941 * <p> 2942 * Calling this method will overwrite any Drawables previously set using 2943 * {@link #setCompoundDrawables} or related methods. 2944 * 2945 * @attr ref android.R.styleable#TextView_drawableStart 2946 * @attr ref android.R.styleable#TextView_drawableTop 2947 * @attr ref android.R.styleable#TextView_drawableEnd 2948 * @attr ref android.R.styleable#TextView_drawableBottom 2949 */ 2950 @android.view.RemotableViewMethod 2951 public void setCompoundDrawablesRelativeWithIntrinsicBounds(@Nullable Drawable start, 2952 @Nullable Drawable top, @Nullable Drawable end, @Nullable Drawable bottom) { 2953 2954 if (start != null) { 2955 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 2956 } 2957 if (end != null) { 2958 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 2959 } 2960 if (top != null) { 2961 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 2962 } 2963 if (bottom != null) { 2964 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2965 } 2966 setCompoundDrawablesRelative(start, top, end, bottom); 2967 } 2968 2969 /** 2970 * Returns drawables for the left, top, right, and bottom borders. 2971 * 2972 * @attr ref android.R.styleable#TextView_drawableLeft 2973 * @attr ref android.R.styleable#TextView_drawableTop 2974 * @attr ref android.R.styleable#TextView_drawableRight 2975 * @attr ref android.R.styleable#TextView_drawableBottom 2976 */ 2977 @NonNull 2978 public Drawable[] getCompoundDrawables() { 2979 final Drawables dr = mDrawables; 2980 if (dr != null) { 2981 return dr.mShowing.clone(); 2982 } else { 2983 return new Drawable[] { null, null, null, null }; 2984 } 2985 } 2986 2987 /** 2988 * Returns drawables for the start, top, end, and bottom borders. 2989 * 2990 * @attr ref android.R.styleable#TextView_drawableStart 2991 * @attr ref android.R.styleable#TextView_drawableTop 2992 * @attr ref android.R.styleable#TextView_drawableEnd 2993 * @attr ref android.R.styleable#TextView_drawableBottom 2994 */ 2995 @NonNull 2996 public Drawable[] getCompoundDrawablesRelative() { 2997 final Drawables dr = mDrawables; 2998 if (dr != null) { 2999 return new Drawable[] { 3000 dr.mDrawableStart, dr.mShowing[Drawables.TOP], 3001 dr.mDrawableEnd, dr.mShowing[Drawables.BOTTOM] 3002 }; 3003 } else { 3004 return new Drawable[] { null, null, null, null }; 3005 } 3006 } 3007 3008 /** 3009 * Sets the size of the padding between the compound drawables and 3010 * the text. 3011 * 3012 * @attr ref android.R.styleable#TextView_drawablePadding 3013 */ 3014 @android.view.RemotableViewMethod 3015 public void setCompoundDrawablePadding(int pad) { 3016 Drawables dr = mDrawables; 3017 if (pad == 0) { 3018 if (dr != null) { 3019 dr.mDrawablePadding = pad; 3020 } 3021 } else { 3022 if (dr == null) { 3023 mDrawables = dr = new Drawables(getContext()); 3024 } 3025 dr.mDrawablePadding = pad; 3026 } 3027 3028 invalidate(); 3029 requestLayout(); 3030 } 3031 3032 /** 3033 * Returns the padding between the compound drawables and the text. 3034 * 3035 * @attr ref android.R.styleable#TextView_drawablePadding 3036 */ 3037 public int getCompoundDrawablePadding() { 3038 final Drawables dr = mDrawables; 3039 return dr != null ? dr.mDrawablePadding : 0; 3040 } 3041 3042 /** 3043 * Applies a tint to the compound drawables. Does not modify the 3044 * current tint mode, which is {@link PorterDuff.Mode#SRC_IN} by default. 3045 * <p> 3046 * Subsequent calls to 3047 * {@link #setCompoundDrawables(Drawable, Drawable, Drawable, Drawable)} 3048 * and related methods will automatically mutate the drawables and apply 3049 * the specified tint and tint mode using 3050 * {@link Drawable#setTintList(ColorStateList)}. 3051 * 3052 * @param tint the tint to apply, may be {@code null} to clear tint 3053 * 3054 * @attr ref android.R.styleable#TextView_drawableTint 3055 * @see #getCompoundDrawableTintList() 3056 * @see Drawable#setTintList(ColorStateList) 3057 */ 3058 public void setCompoundDrawableTintList(@Nullable ColorStateList tint) { 3059 if (mDrawables == null) { 3060 mDrawables = new Drawables(getContext()); 3061 } 3062 mDrawables.mTintList = tint; 3063 mDrawables.mHasTint = true; 3064 3065 applyCompoundDrawableTint(); 3066 } 3067 3068 /** 3069 * @return the tint applied to the compound drawables 3070 * @attr ref android.R.styleable#TextView_drawableTint 3071 * @see #setCompoundDrawableTintList(ColorStateList) 3072 */ 3073 public ColorStateList getCompoundDrawableTintList() { 3074 return mDrawables != null ? mDrawables.mTintList : null; 3075 } 3076 3077 /** 3078 * Specifies the blending mode used to apply the tint specified by 3079 * {@link #setCompoundDrawableTintList(ColorStateList)} to the compound 3080 * drawables. The default mode is {@link PorterDuff.Mode#SRC_IN}. 3081 * 3082 * @param tintMode the blending mode used to apply the tint, may be 3083 * {@code null} to clear tint 3084 * @attr ref android.R.styleable#TextView_drawableTintMode 3085 * @see #setCompoundDrawableTintList(ColorStateList) 3086 * @see Drawable#setTintMode(PorterDuff.Mode) 3087 */ 3088 public void setCompoundDrawableTintMode(@Nullable PorterDuff.Mode tintMode) { 3089 if (mDrawables == null) { 3090 mDrawables = new Drawables(getContext()); 3091 } 3092 mDrawables.mTintMode = tintMode; 3093 mDrawables.mHasTintMode = true; 3094 3095 applyCompoundDrawableTint(); 3096 } 3097 3098 /** 3099 * Returns the blending mode used to apply the tint to the compound 3100 * drawables, if specified. 3101 * 3102 * @return the blending mode used to apply the tint to the compound 3103 * drawables 3104 * @attr ref android.R.styleable#TextView_drawableTintMode 3105 * @see #setCompoundDrawableTintMode(PorterDuff.Mode) 3106 */ 3107 public PorterDuff.Mode getCompoundDrawableTintMode() { 3108 return mDrawables != null ? mDrawables.mTintMode : null; 3109 } 3110 3111 private void applyCompoundDrawableTint() { 3112 if (mDrawables == null) { 3113 return; 3114 } 3115 3116 if (mDrawables.mHasTint || mDrawables.mHasTintMode) { 3117 final ColorStateList tintList = mDrawables.mTintList; 3118 final PorterDuff.Mode tintMode = mDrawables.mTintMode; 3119 final boolean hasTint = mDrawables.mHasTint; 3120 final boolean hasTintMode = mDrawables.mHasTintMode; 3121 final int[] state = getDrawableState(); 3122 3123 for (Drawable dr : mDrawables.mShowing) { 3124 if (dr == null) { 3125 continue; 3126 } 3127 3128 if (dr == mDrawables.mDrawableError) { 3129 // From a developer's perspective, the error drawable isn't 3130 // a compound drawable. Don't apply the generic compound 3131 // drawable tint to it. 3132 continue; 3133 } 3134 3135 dr.mutate(); 3136 3137 if (hasTint) { 3138 dr.setTintList(tintList); 3139 } 3140 3141 if (hasTintMode) { 3142 dr.setTintMode(tintMode); 3143 } 3144 3145 // The drawable (or one of its children) may not have been 3146 // stateful before applying the tint, so let's try again. 3147 if (dr.isStateful()) { 3148 dr.setState(state); 3149 } 3150 } 3151 } 3152 } 3153 3154 @Override 3155 public void setPadding(int left, int top, int right, int bottom) { 3156 if (left != mPaddingLeft 3157 || right != mPaddingRight 3158 || top != mPaddingTop 3159 || bottom != mPaddingBottom) { 3160 nullLayouts(); 3161 } 3162 3163 // the super call will requestLayout() 3164 super.setPadding(left, top, right, bottom); 3165 invalidate(); 3166 } 3167 3168 @Override 3169 public void setPaddingRelative(int start, int top, int end, int bottom) { 3170 if (start != getPaddingStart() 3171 || end != getPaddingEnd() 3172 || top != mPaddingTop 3173 || bottom != mPaddingBottom) { 3174 nullLayouts(); 3175 } 3176 3177 // the super call will requestLayout() 3178 super.setPaddingRelative(start, top, end, bottom); 3179 invalidate(); 3180 } 3181 3182 /** 3183 * Gets the autolink mask of the text. See {@link 3184 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 3185 * possible values. 3186 * 3187 * @attr ref android.R.styleable#TextView_autoLink 3188 */ 3189 public final int getAutoLinkMask() { 3190 return mAutoLinkMask; 3191 } 3192 3193 /** 3194 * Sets the text appearance from the specified style resource. 3195 * <p> 3196 * Use a framework-defined {@code TextAppearance} style like 3197 * {@link android.R.style#TextAppearance_Material_Body1 @android:style/TextAppearance.Material.Body1} 3198 * or see {@link android.R.styleable#TextAppearance TextAppearance} for the 3199 * set of attributes that can be used in a custom style. 3200 * 3201 * @param resId the resource identifier of the style to apply 3202 * @attr ref android.R.styleable#TextView_textAppearance 3203 */ 3204 @SuppressWarnings("deprecation") 3205 public void setTextAppearance(@StyleRes int resId) { 3206 setTextAppearance(mContext, resId); 3207 } 3208 3209 /** 3210 * Sets the text color, size, style, hint color, and highlight color 3211 * from the specified TextAppearance resource. 3212 * 3213 * @deprecated Use {@link #setTextAppearance(int)} instead. 3214 */ 3215 @Deprecated 3216 public void setTextAppearance(Context context, @StyleRes int resId) { 3217 final TypedArray ta = context.obtainStyledAttributes(resId, R.styleable.TextAppearance); 3218 final TextAppearanceAttributes attributes = new TextAppearanceAttributes(); 3219 readTextAppearance(context, ta, attributes, false /* styleArray */); 3220 ta.recycle(); 3221 applyTextAppearance(attributes); 3222 } 3223 3224 /** 3225 * Set of attributes that can be defined in a Text Appearance. This is used to simplify the code 3226 * that reads these attributes in the constructor and in {@link #setTextAppearance}. 3227 */ 3228 private static class TextAppearanceAttributes { 3229 int mTextColorHighlight = 0; 3230 ColorStateList mTextColor = null; 3231 ColorStateList mTextColorHint = null; 3232 ColorStateList mTextColorLink = null; 3233 int mTextSize = 0; 3234 String mFontFamily = null; 3235 Typeface mFontTypeface = null; 3236 boolean mFontFamilyExplicit = false; 3237 int mTypefaceIndex = -1; 3238 int mStyleIndex = -1; 3239 boolean mAllCaps = false; 3240 int mShadowColor = 0; 3241 float mShadowDx = 0, mShadowDy = 0, mShadowRadius = 0; 3242 boolean mHasElegant = false; 3243 boolean mElegant = false; 3244 boolean mHasLetterSpacing = false; 3245 float mLetterSpacing = 0; 3246 String mFontFeatureSettings = null; 3247 3248 @Override 3249 public String toString() { 3250 return "TextAppearanceAttributes {\n" 3251 + " mTextColorHighlight:" + mTextColorHighlight + "\n" 3252 + " mTextColor:" + mTextColor + "\n" 3253 + " mTextColorHint:" + mTextColorHint + "\n" 3254 + " mTextColorLink:" + mTextColorLink + "\n" 3255 + " mTextSize:" + mTextSize + "\n" 3256 + " mFontFamily:" + mFontFamily + "\n" 3257 + " mFontTypeface:" + mFontTypeface + "\n" 3258 + " mFontFamilyExplicit:" + mFontFamilyExplicit + "\n" 3259 + " mTypefaceIndex:" + mTypefaceIndex + "\n" 3260 + " mStyleIndex:" + mStyleIndex + "\n" 3261 + " mAllCaps:" + mAllCaps + "\n" 3262 + " mShadowColor:" + mShadowColor + "\n" 3263 + " mShadowDx:" + mShadowDx + "\n" 3264 + " mShadowDy:" + mShadowDy + "\n" 3265 + " mShadowRadius:" + mShadowRadius + "\n" 3266 + " mHasElegant:" + mHasElegant + "\n" 3267 + " mElegant:" + mElegant + "\n" 3268 + " mHasLetterSpacing:" + mHasLetterSpacing + "\n" 3269 + " mLetterSpacing:" + mLetterSpacing + "\n" 3270 + " mFontFeatureSettings:" + mFontFeatureSettings + "\n" 3271 + "}"; 3272 } 3273 } 3274 3275 // Maps styleable attributes that exist both in TextView style and TextAppearance. 3276 private static final SparseIntArray sAppearanceValues = new SparseIntArray(); 3277 static { 3278 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textColorHighlight, 3279 com.android.internal.R.styleable.TextAppearance_textColorHighlight); 3280 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textColor, 3281 com.android.internal.R.styleable.TextAppearance_textColor); 3282 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textColorHint, 3283 com.android.internal.R.styleable.TextAppearance_textColorHint); 3284 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textColorLink, 3285 com.android.internal.R.styleable.TextAppearance_textColorLink); 3286 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textSize, 3287 com.android.internal.R.styleable.TextAppearance_textSize); 3288 sAppearanceValues.put(com.android.internal.R.styleable.TextView_typeface, 3289 com.android.internal.R.styleable.TextAppearance_typeface); 3290 sAppearanceValues.put(com.android.internal.R.styleable.TextView_fontFamily, 3291 com.android.internal.R.styleable.TextAppearance_fontFamily); 3292 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textStyle, 3293 com.android.internal.R.styleable.TextAppearance_textStyle); 3294 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textAllCaps, 3295 com.android.internal.R.styleable.TextAppearance_textAllCaps); 3296 sAppearanceValues.put(com.android.internal.R.styleable.TextView_shadowColor, 3297 com.android.internal.R.styleable.TextAppearance_shadowColor); 3298 sAppearanceValues.put(com.android.internal.R.styleable.TextView_shadowDx, 3299 com.android.internal.R.styleable.TextAppearance_shadowDx); 3300 sAppearanceValues.put(com.android.internal.R.styleable.TextView_shadowDy, 3301 com.android.internal.R.styleable.TextAppearance_shadowDy); 3302 sAppearanceValues.put(com.android.internal.R.styleable.TextView_shadowRadius, 3303 com.android.internal.R.styleable.TextAppearance_shadowRadius); 3304 sAppearanceValues.put(com.android.internal.R.styleable.TextView_elegantTextHeight, 3305 com.android.internal.R.styleable.TextAppearance_elegantTextHeight); 3306 sAppearanceValues.put(com.android.internal.R.styleable.TextView_letterSpacing, 3307 com.android.internal.R.styleable.TextAppearance_letterSpacing); 3308 sAppearanceValues.put(com.android.internal.R.styleable.TextView_fontFeatureSettings, 3309 com.android.internal.R.styleable.TextAppearance_fontFeatureSettings); 3310 } 3311 3312 /** 3313 * Read the Text Appearance attributes from a given TypedArray and set its values to the given 3314 * set. If the TypedArray contains a value that was already set in the given attributes, that 3315 * will be overriden. 3316 * 3317 * @param context The Context to be used 3318 * @param appearance The TypedArray to read properties from 3319 * @param attributes the TextAppearanceAttributes to fill in 3320 * @param styleArray Whether the given TypedArray is a style or a TextAppearance. This defines 3321 * what attribute indexes will be used to read the properties. 3322 */ 3323 private void readTextAppearance(Context context, TypedArray appearance, 3324 TextAppearanceAttributes attributes, boolean styleArray) { 3325 final int n = appearance.getIndexCount(); 3326 for (int i = 0; i < n; i++) { 3327 final int attr = appearance.getIndex(i); 3328 int index = attr; 3329 // Translate style array index ids to TextAppearance ids. 3330 if (styleArray) { 3331 index = sAppearanceValues.get(attr, -1); 3332 if (index == -1) { 3333 // This value is not part of a Text Appearance and should be ignored. 3334 continue; 3335 } 3336 } 3337 switch (index) { 3338 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 3339 attributes.mTextColorHighlight = 3340 appearance.getColor(attr, attributes.mTextColorHighlight); 3341 break; 3342 case com.android.internal.R.styleable.TextAppearance_textColor: 3343 attributes.mTextColor = appearance.getColorStateList(attr); 3344 break; 3345 case com.android.internal.R.styleable.TextAppearance_textColorHint: 3346 attributes.mTextColorHint = appearance.getColorStateList(attr); 3347 break; 3348 case com.android.internal.R.styleable.TextAppearance_textColorLink: 3349 attributes.mTextColorLink = appearance.getColorStateList(attr); 3350 break; 3351 case com.android.internal.R.styleable.TextAppearance_textSize: 3352 attributes.mTextSize = 3353 appearance.getDimensionPixelSize(attr, attributes.mTextSize); 3354 break; 3355 case com.android.internal.R.styleable.TextAppearance_typeface: 3356 attributes.mTypefaceIndex = appearance.getInt(attr, attributes.mTypefaceIndex); 3357 if (attributes.mTypefaceIndex != -1 && !attributes.mFontFamilyExplicit) { 3358 attributes.mFontFamily = null; 3359 } 3360 break; 3361 case com.android.internal.R.styleable.TextAppearance_fontFamily: 3362 if (!context.isRestricted() && context.canLoadUnsafeResources()) { 3363 try { 3364 attributes.mFontTypeface = appearance.getFont(attr); 3365 } catch (UnsupportedOperationException | Resources.NotFoundException e) { 3366 // Expected if it is not a font resource. 3367 } 3368 } 3369 if (attributes.mFontTypeface == null) { 3370 attributes.mFontFamily = appearance.getString(attr); 3371 } 3372 attributes.mFontFamilyExplicit = true; 3373 break; 3374 case com.android.internal.R.styleable.TextAppearance_textStyle: 3375 attributes.mStyleIndex = appearance.getInt(attr, attributes.mStyleIndex); 3376 break; 3377 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 3378 attributes.mAllCaps = appearance.getBoolean(attr, attributes.mAllCaps); 3379 break; 3380 case com.android.internal.R.styleable.TextAppearance_shadowColor: 3381 attributes.mShadowColor = appearance.getInt(attr, attributes.mShadowColor); 3382 break; 3383 case com.android.internal.R.styleable.TextAppearance_shadowDx: 3384 attributes.mShadowDx = appearance.getFloat(attr, attributes.mShadowDx); 3385 break; 3386 case com.android.internal.R.styleable.TextAppearance_shadowDy: 3387 attributes.mShadowDy = appearance.getFloat(attr, attributes.mShadowDy); 3388 break; 3389 case com.android.internal.R.styleable.TextAppearance_shadowRadius: 3390 attributes.mShadowRadius = appearance.getFloat(attr, attributes.mShadowRadius); 3391 break; 3392 case com.android.internal.R.styleable.TextAppearance_elegantTextHeight: 3393 attributes.mHasElegant = true; 3394 attributes.mElegant = appearance.getBoolean(attr, attributes.mElegant); 3395 break; 3396 case com.android.internal.R.styleable.TextAppearance_letterSpacing: 3397 attributes.mHasLetterSpacing = true; 3398 attributes.mLetterSpacing = 3399 appearance.getFloat(attr, attributes.mLetterSpacing); 3400 break; 3401 case com.android.internal.R.styleable.TextAppearance_fontFeatureSettings: 3402 attributes.mFontFeatureSettings = appearance.getString(attr); 3403 break; 3404 default: 3405 } 3406 } 3407 } 3408 3409 private void applyTextAppearance(TextAppearanceAttributes attributes) { 3410 if (attributes.mTextColor != null) { 3411 setTextColor(attributes.mTextColor); 3412 } 3413 3414 if (attributes.mTextColorHint != null) { 3415 setHintTextColor(attributes.mTextColorHint); 3416 } 3417 3418 if (attributes.mTextColorLink != null) { 3419 setLinkTextColor(attributes.mTextColorLink); 3420 } 3421 3422 if (attributes.mTextColorHighlight != 0) { 3423 setHighlightColor(attributes.mTextColorHighlight); 3424 } 3425 3426 if (attributes.mTextSize != 0) { 3427 setRawTextSize(attributes.mTextSize, true /* shouldRequestLayout */); 3428 } 3429 3430 if (attributes.mTypefaceIndex != -1 && !attributes.mFontFamilyExplicit) { 3431 attributes.mFontFamily = null; 3432 } 3433 setTypefaceFromAttrs(attributes.mFontTypeface, attributes.mFontFamily, 3434 attributes.mTypefaceIndex, attributes.mStyleIndex); 3435 3436 if (attributes.mShadowColor != 0) { 3437 setShadowLayer(attributes.mShadowRadius, attributes.mShadowDx, attributes.mShadowDy, 3438 attributes.mShadowColor); 3439 } 3440 3441 if (attributes.mAllCaps) { 3442 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 3443 } 3444 3445 if (attributes.mHasElegant) { 3446 setElegantTextHeight(attributes.mElegant); 3447 } 3448 3449 if (attributes.mHasLetterSpacing) { 3450 setLetterSpacing(attributes.mLetterSpacing); 3451 } 3452 3453 if (attributes.mFontFeatureSettings != null) { 3454 setFontFeatureSettings(attributes.mFontFeatureSettings); 3455 } 3456 } 3457 3458 /** 3459 * Get the default primary {@link Locale} of the text in this TextView. This will always be 3460 * the first member of {@link #getTextLocales()}. 3461 * @return the default primary {@link Locale} of the text in this TextView. 3462 */ 3463 @NonNull 3464 public Locale getTextLocale() { 3465 return mTextPaint.getTextLocale(); 3466 } 3467 3468 /** 3469 * Get the default {@link LocaleList} of the text in this TextView. 3470 * @return the default {@link LocaleList} of the text in this TextView. 3471 */ 3472 @NonNull @Size(min = 1) 3473 public LocaleList getTextLocales() { 3474 return mTextPaint.getTextLocales(); 3475 } 3476 3477 private void changeListenerLocaleTo(@Nullable Locale locale) { 3478 if (mListenerChanged) { 3479 // If a listener has been explicitly set, don't change it. We may break something. 3480 return; 3481 } 3482 // The following null check is not absolutely necessary since all calling points of 3483 // changeListenerLocaleTo() guarantee a non-null mEditor at the moment. But this is left 3484 // here in case others would want to call this method in the future. 3485 if (mEditor != null) { 3486 KeyListener listener = mEditor.mKeyListener; 3487 if (listener instanceof DigitsKeyListener) { 3488 listener = DigitsKeyListener.getInstance(locale, (DigitsKeyListener) listener); 3489 } else if (listener instanceof DateKeyListener) { 3490 listener = DateKeyListener.getInstance(locale); 3491 } else if (listener instanceof TimeKeyListener) { 3492 listener = TimeKeyListener.getInstance(locale); 3493 } else if (listener instanceof DateTimeKeyListener) { 3494 listener = DateTimeKeyListener.getInstance(locale); 3495 } else { 3496 return; 3497 } 3498 final boolean wasPasswordType = isPasswordInputType(mEditor.mInputType); 3499 setKeyListenerOnly(listener); 3500 setInputTypeFromEditor(); 3501 if (wasPasswordType) { 3502 final int newInputClass = mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS; 3503 if (newInputClass == EditorInfo.TYPE_CLASS_TEXT) { 3504 mEditor.mInputType |= EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 3505 } else if (newInputClass == EditorInfo.TYPE_CLASS_NUMBER) { 3506 mEditor.mInputType |= EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 3507 } 3508 } 3509 } 3510 } 3511 3512 /** 3513 * Set the default {@link Locale} of the text in this TextView to a one-member 3514 * {@link LocaleList} containing just the given Locale. 3515 * 3516 * @param locale the {@link Locale} for drawing text, must not be null. 3517 * 3518 * @see #setTextLocales 3519 */ 3520 public void setTextLocale(@NonNull Locale locale) { 3521 mLocalesChanged = true; 3522 mTextPaint.setTextLocale(locale); 3523 if (mLayout != null) { 3524 nullLayouts(); 3525 requestLayout(); 3526 invalidate(); 3527 } 3528 } 3529 3530 /** 3531 * Set the default {@link LocaleList} of the text in this TextView to the given value. 3532 * 3533 * This value is used to choose appropriate typefaces for ambiguous characters (typically used 3534 * for CJK locales to disambiguate Hanzi/Kanji/Hanja characters). It also affects 3535 * other aspects of text display, including line breaking. 3536 * 3537 * @param locales the {@link LocaleList} for drawing text, must not be null or empty. 3538 * 3539 * @see Paint#setTextLocales 3540 */ 3541 public void setTextLocales(@NonNull @Size(min = 1) LocaleList locales) { 3542 mLocalesChanged = true; 3543 mTextPaint.setTextLocales(locales); 3544 if (mLayout != null) { 3545 nullLayouts(); 3546 requestLayout(); 3547 invalidate(); 3548 } 3549 } 3550 3551 @Override 3552 protected void onConfigurationChanged(Configuration newConfig) { 3553 super.onConfigurationChanged(newConfig); 3554 if (!mLocalesChanged) { 3555 mTextPaint.setTextLocales(LocaleList.getDefault()); 3556 if (mLayout != null) { 3557 nullLayouts(); 3558 requestLayout(); 3559 invalidate(); 3560 } 3561 } 3562 } 3563 3564 /** 3565 * @return the size (in pixels) of the default text size in this TextView. 3566 */ 3567 @ViewDebug.ExportedProperty(category = "text") 3568 public float getTextSize() { 3569 return mTextPaint.getTextSize(); 3570 } 3571 3572 /** 3573 * @return the size (in scaled pixels) of the default text size in this TextView. 3574 * @hide 3575 */ 3576 @ViewDebug.ExportedProperty(category = "text") 3577 public float getScaledTextSize() { 3578 return mTextPaint.getTextSize() / mTextPaint.density; 3579 } 3580 3581 /** @hide */ 3582 @ViewDebug.ExportedProperty(category = "text", mapping = { 3583 @ViewDebug.IntToString(from = Typeface.NORMAL, to = "NORMAL"), 3584 @ViewDebug.IntToString(from = Typeface.BOLD, to = "BOLD"), 3585 @ViewDebug.IntToString(from = Typeface.ITALIC, to = "ITALIC"), 3586 @ViewDebug.IntToString(from = Typeface.BOLD_ITALIC, to = "BOLD_ITALIC") 3587 }) 3588 public int getTypefaceStyle() { 3589 Typeface typeface = mTextPaint.getTypeface(); 3590 return typeface != null ? typeface.getStyle() : Typeface.NORMAL; 3591 } 3592 3593 /** 3594 * Set the default text size to the given value, interpreted as "scaled 3595 * pixel" units. This size is adjusted based on the current density and 3596 * user font size preference. 3597 * 3598 * <p>Note: if this TextView has the auto-size feature enabled than this function is no-op. 3599 * 3600 * @param size The scaled pixel size. 3601 * 3602 * @attr ref android.R.styleable#TextView_textSize 3603 */ 3604 @android.view.RemotableViewMethod 3605 public void setTextSize(float size) { 3606 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 3607 } 3608 3609 /** 3610 * Set the default text size to a given unit and value. See {@link 3611 * TypedValue} for the possible dimension units. 3612 * 3613 * <p>Note: if this TextView has the auto-size feature enabled than this function is no-op. 3614 * 3615 * @param unit The desired dimension unit. 3616 * @param size The desired size in the given units. 3617 * 3618 * @attr ref android.R.styleable#TextView_textSize 3619 */ 3620 public void setTextSize(int unit, float size) { 3621 if (!isAutoSizeEnabled()) { 3622 setTextSizeInternal(unit, size, true /* shouldRequestLayout */); 3623 } 3624 } 3625 3626 private void setTextSizeInternal(int unit, float size, boolean shouldRequestLayout) { 3627 Context c = getContext(); 3628 Resources r; 3629 3630 if (c == null) { 3631 r = Resources.getSystem(); 3632 } else { 3633 r = c.getResources(); 3634 } 3635 3636 setRawTextSize(TypedValue.applyDimension(unit, size, r.getDisplayMetrics()), 3637 shouldRequestLayout); 3638 } 3639 3640 private void setRawTextSize(float size, boolean shouldRequestLayout) { 3641 if (size != mTextPaint.getTextSize()) { 3642 mTextPaint.setTextSize(size); 3643 3644 if (shouldRequestLayout && mLayout != null) { 3645 // Do not auto-size right after setting the text size. 3646 mNeedsAutoSizeText = false; 3647 nullLayouts(); 3648 requestLayout(); 3649 invalidate(); 3650 } 3651 } 3652 } 3653 3654 /** 3655 * Gets the extent by which text should be stretched horizontally. 3656 * This will usually be 1.0. 3657 * @return The horizontal scale factor. 3658 */ 3659 public float getTextScaleX() { 3660 return mTextPaint.getTextScaleX(); 3661 } 3662 3663 /** 3664 * Sets the horizontal scale factor for text. The default value 3665 * is 1.0. Values greater than 1.0 stretch the text wider. 3666 * Values less than 1.0 make the text narrower. By default, this value is 1.0. 3667 * @param size The horizontal scale factor. 3668 * @attr ref android.R.styleable#TextView_textScaleX 3669 */ 3670 @android.view.RemotableViewMethod 3671 public void setTextScaleX(float size) { 3672 if (size != mTextPaint.getTextScaleX()) { 3673 mUserSetTextScaleX = true; 3674 mTextPaint.setTextScaleX(size); 3675 3676 if (mLayout != null) { 3677 nullLayouts(); 3678 requestLayout(); 3679 invalidate(); 3680 } 3681 } 3682 } 3683 3684 /** 3685 * Sets the typeface and style in which the text should be displayed. 3686 * Note that not all Typeface families actually have bold and italic 3687 * variants, so you may need to use 3688 * {@link #setTypeface(Typeface, int)} to get the appearance 3689 * that you actually want. 3690 * 3691 * @see #getTypeface() 3692 * 3693 * @attr ref android.R.styleable#TextView_fontFamily 3694 * @attr ref android.R.styleable#TextView_typeface 3695 * @attr ref android.R.styleable#TextView_textStyle 3696 */ 3697 public void setTypeface(Typeface tf) { 3698 if (mTextPaint.getTypeface() != tf) { 3699 mTextPaint.setTypeface(tf); 3700 3701 if (mLayout != null) { 3702 nullLayouts(); 3703 requestLayout(); 3704 invalidate(); 3705 } 3706 } 3707 } 3708 3709 /** 3710 * Gets the current {@link Typeface} that is used to style the text. 3711 * @return The current Typeface. 3712 * 3713 * @see #setTypeface(Typeface) 3714 * 3715 * @attr ref android.R.styleable#TextView_fontFamily 3716 * @attr ref android.R.styleable#TextView_typeface 3717 * @attr ref android.R.styleable#TextView_textStyle 3718 */ 3719 public Typeface getTypeface() { 3720 return mTextPaint.getTypeface(); 3721 } 3722 3723 /** 3724 * Set the TextView's elegant height metrics flag. This setting selects font 3725 * variants that have not been compacted to fit Latin-based vertical 3726 * metrics, and also increases top and bottom bounds to provide more space. 3727 * 3728 * @param elegant set the paint's elegant metrics flag. 3729 * 3730 * @see Paint#isElegantTextHeight(boolean) 3731 * 3732 * @attr ref android.R.styleable#TextView_elegantTextHeight 3733 */ 3734 public void setElegantTextHeight(boolean elegant) { 3735 if (elegant != mTextPaint.isElegantTextHeight()) { 3736 mTextPaint.setElegantTextHeight(elegant); 3737 if (mLayout != null) { 3738 nullLayouts(); 3739 requestLayout(); 3740 invalidate(); 3741 } 3742 } 3743 } 3744 3745 /** 3746 * Get the value of the TextView's elegant height metrics flag. This setting selects font 3747 * variants that have not been compacted to fit Latin-based vertical 3748 * metrics, and also increases top and bottom bounds to provide more space. 3749 * @return {@code true} if the elegant height metrics flag is set. 3750 * 3751 * @see #setElegantTextHeight(boolean) 3752 * @see Paint#setElegantTextHeight(boolean) 3753 */ 3754 public boolean isElegantTextHeight() { 3755 return mTextPaint.isElegantTextHeight(); 3756 } 3757 3758 /** 3759 * Gets the text letter-space value, which determines the spacing between characters. 3760 * The value returned is in ems. Normally, this value is 0.0. 3761 * @return The text letter-space value in ems. 3762 * 3763 * @see #setLetterSpacing(float) 3764 * @see Paint#setLetterSpacing 3765 */ 3766 public float getLetterSpacing() { 3767 return mTextPaint.getLetterSpacing(); 3768 } 3769 3770 /** 3771 * Sets text letter-spacing in em units. Typical values 3772 * for slight expansion will be around 0.05. Negative values tighten text. 3773 * 3774 * @see #getLetterSpacing() 3775 * @see Paint#getLetterSpacing 3776 * 3777 * @param letterSpacing A text letter-space value in ems. 3778 * @attr ref android.R.styleable#TextView_letterSpacing 3779 */ 3780 @android.view.RemotableViewMethod 3781 public void setLetterSpacing(float letterSpacing) { 3782 if (letterSpacing != mTextPaint.getLetterSpacing()) { 3783 mTextPaint.setLetterSpacing(letterSpacing); 3784 3785 if (mLayout != null) { 3786 nullLayouts(); 3787 requestLayout(); 3788 invalidate(); 3789 } 3790 } 3791 } 3792 3793 /** 3794 * Returns the font feature settings. The format is the same as the CSS 3795 * font-feature-settings attribute: 3796 * <a href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop"> 3797 * https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop</a> 3798 * 3799 * @return the currently set font feature settings. Default is null. 3800 * 3801 * @see #setFontFeatureSettings(String) 3802 * @see Paint#setFontFeatureSettings(String) Paint.setFontFeatureSettings(String) 3803 */ 3804 @Nullable 3805 public String getFontFeatureSettings() { 3806 return mTextPaint.getFontFeatureSettings(); 3807 } 3808 3809 /** 3810 * Returns the font variation settings. 3811 * 3812 * @return the currently set font variation settings. Returns null if no variation is 3813 * specified. 3814 * 3815 * @see #setFontVariationSettings(String) 3816 * @see Paint#setFontVariationSettings(String) Paint.setFontVariationSettings(String) 3817 */ 3818 @Nullable 3819 public String getFontVariationSettings() { 3820 return mTextPaint.getFontVariationSettings(); 3821 } 3822 3823 /** 3824 * Sets the break strategy for breaking paragraphs into lines. The default value for 3825 * TextView is {@link Layout#BREAK_STRATEGY_HIGH_QUALITY}, and the default value for 3826 * EditText is {@link Layout#BREAK_STRATEGY_SIMPLE}, the latter to avoid the 3827 * text "dancing" when being edited. 3828 * 3829 * @attr ref android.R.styleable#TextView_breakStrategy 3830 * @see #getBreakStrategy() 3831 */ 3832 public void setBreakStrategy(@Layout.BreakStrategy int breakStrategy) { 3833 mBreakStrategy = breakStrategy; 3834 if (mLayout != null) { 3835 nullLayouts(); 3836 requestLayout(); 3837 invalidate(); 3838 } 3839 } 3840 3841 /** 3842 * Gets the current strategy for breaking paragraphs into lines. 3843 * @return the current strategy for breaking paragraphs into lines. 3844 * 3845 * @attr ref android.R.styleable#TextView_breakStrategy 3846 * @see #setBreakStrategy(int) 3847 */ 3848 @Layout.BreakStrategy 3849 public int getBreakStrategy() { 3850 return mBreakStrategy; 3851 } 3852 3853 /** 3854 * Sets the frequency of automatic hyphenation to use when determining word breaks. 3855 * The default value for both TextView and {@link EditText} is 3856 * {@link Layout#HYPHENATION_FREQUENCY_NORMAL}. 3857 * Note that the default hyphenation frequency value is set from the theme. 3858 * 3859 * @param hyphenationFrequency The hyphenation frequency to use. 3860 * @attr ref android.R.styleable#TextView_hyphenationFrequency 3861 * @see #getHyphenationFrequency() 3862 */ 3863 public void setHyphenationFrequency(@Layout.HyphenationFrequency int hyphenationFrequency) { 3864 mHyphenationFrequency = hyphenationFrequency; 3865 if (mLayout != null) { 3866 nullLayouts(); 3867 requestLayout(); 3868 invalidate(); 3869 } 3870 } 3871 3872 /** 3873 * Gets the current frequency of automatic hyphenation to be used when determining word breaks. 3874 * @return the current frequency of automatic hyphenation to be used when determining word 3875 * breaks. 3876 * 3877 * @attr ref android.R.styleable#TextView_hyphenationFrequency 3878 * @see #setHyphenationFrequency(int) 3879 */ 3880 @Layout.HyphenationFrequency 3881 public int getHyphenationFrequency() { 3882 return mHyphenationFrequency; 3883 } 3884 3885 /** 3886 * Set justification mode. The default value is {@link Layout#JUSTIFICATION_MODE_NONE}. If the 3887 * last line is too short for justification, the last line will be displayed with the 3888 * alignment set by {@link android.view.View#setTextAlignment}. 3889 * 3890 * @see #getJustificationMode() 3891 */ 3892 @Layout.JustificationMode 3893 public void setJustificationMode(@Layout.JustificationMode int justificationMode) { 3894 mJustificationMode = justificationMode; 3895 if (mLayout != null) { 3896 nullLayouts(); 3897 requestLayout(); 3898 invalidate(); 3899 } 3900 } 3901 3902 /** 3903 * @return true if currently paragraph justification mode. 3904 * 3905 * @see #setJustificationMode(int) 3906 */ 3907 public @Layout.JustificationMode int getJustificationMode() { 3908 return mJustificationMode; 3909 } 3910 3911 /** 3912 * Sets font feature settings. The format is the same as the CSS 3913 * font-feature-settings attribute: 3914 * <a href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop"> 3915 * https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop</a> 3916 * 3917 * @param fontFeatureSettings font feature settings represented as CSS compatible string 3918 * 3919 * @see #getFontFeatureSettings() 3920 * @see Paint#getFontFeatureSettings() Paint.getFontFeatureSettings() 3921 * 3922 * @attr ref android.R.styleable#TextView_fontFeatureSettings 3923 */ 3924 @android.view.RemotableViewMethod 3925 public void setFontFeatureSettings(@Nullable String fontFeatureSettings) { 3926 if (fontFeatureSettings != mTextPaint.getFontFeatureSettings()) { 3927 mTextPaint.setFontFeatureSettings(fontFeatureSettings); 3928 3929 if (mLayout != null) { 3930 nullLayouts(); 3931 requestLayout(); 3932 invalidate(); 3933 } 3934 } 3935 } 3936 3937 3938 /** 3939 * Sets TrueType or OpenType font variation settings. The settings string is constructed from 3940 * multiple pairs of axis tag and style values. The axis tag must contain four ASCII characters 3941 * and must be wrapped with single quotes (U+0027) or double quotes (U+0022). Axis strings that 3942 * are longer or shorter than four characters, or contain characters outside of U+0020..U+007E 3943 * are invalid. If a specified axis name is not defined in the font, the settings will be 3944 * ignored. 3945 * 3946 * <p> 3947 * Examples, 3948 * <ul> 3949 * <li>Set font width to 150. 3950 * <pre> 3951 * <code> 3952 * TextView textView = (TextView) findViewById(R.id.textView); 3953 * textView.setFontVariationSettings("'wdth' 150"); 3954 * </code> 3955 * </pre> 3956 * </li> 3957 * 3958 * <li>Set the font slant to 20 degrees and ask for italic style. 3959 * <pre> 3960 * <code> 3961 * TextView textView = (TextView) findViewById(R.id.textView); 3962 * textView.setFontVariationSettings("'slnt' 20, 'ital' 1"); 3963 * </code> 3964 * </pre> 3965 * </p> 3966 * </li> 3967 * </ul> 3968 * 3969 * @param fontVariationSettings font variation settings. You can pass null or empty string as 3970 * no variation settings. 3971 * @return true if the given settings is effective to at least one font file underlying this 3972 * TextView. This function also returns true for empty settings string. Otherwise 3973 * returns false. 3974 * 3975 * @throws IllegalArgumentException If given string is not a valid font variation settings 3976 * format. 3977 * 3978 * @see #getFontVariationSettings() 3979 * @see FontVariationAxis 3980 */ 3981 public boolean setFontVariationSettings(@Nullable String fontVariationSettings) { 3982 final String existingSettings = mTextPaint.getFontVariationSettings(); 3983 if (fontVariationSettings == existingSettings 3984 || (fontVariationSettings != null 3985 && fontVariationSettings.equals(existingSettings))) { 3986 return true; 3987 } 3988 boolean effective = mTextPaint.setFontVariationSettings(fontVariationSettings); 3989 3990 if (effective && mLayout != null) { 3991 nullLayouts(); 3992 requestLayout(); 3993 invalidate(); 3994 } 3995 return effective; 3996 } 3997 3998 /** 3999 * Sets the text color for all the states (normal, selected, 4000 * focused) to be this color. 4001 * 4002 * @param color A color value in the form 0xAARRGGBB. 4003 * Do not pass a resource ID. To get a color value from a resource ID, call 4004 * {@link android.support.v4.content.ContextCompat#getColor(Context, int) getColor}. 4005 * 4006 * @see #setTextColor(ColorStateList) 4007 * @see #getTextColors() 4008 * 4009 * @attr ref android.R.styleable#TextView_textColor 4010 */ 4011 @android.view.RemotableViewMethod 4012 public void setTextColor(@ColorInt int color) { 4013 mTextColor = ColorStateList.valueOf(color); 4014 updateTextColors(); 4015 } 4016 4017 /** 4018 * Sets the text color. 4019 * 4020 * @see #setTextColor(int) 4021 * @see #getTextColors() 4022 * @see #setHintTextColor(ColorStateList) 4023 * @see #setLinkTextColor(ColorStateList) 4024 * 4025 * @attr ref android.R.styleable#TextView_textColor 4026 */ 4027 @android.view.RemotableViewMethod 4028 public void setTextColor(ColorStateList colors) { 4029 if (colors == null) { 4030 throw new NullPointerException(); 4031 } 4032 4033 mTextColor = colors; 4034 updateTextColors(); 4035 } 4036 4037 /** 4038 * Gets the text colors for the different states (normal, selected, focused) of the TextView. 4039 * 4040 * @see #setTextColor(ColorStateList) 4041 * @see #setTextColor(int) 4042 * 4043 * @attr ref android.R.styleable#TextView_textColor 4044 */ 4045 public final ColorStateList getTextColors() { 4046 return mTextColor; 4047 } 4048 4049 /** 4050 * Return the current color selected for normal text. 4051 * 4052 * @return Returns the current text color. 4053 */ 4054 @ColorInt 4055 public final int getCurrentTextColor() { 4056 return mCurTextColor; 4057 } 4058 4059 /** 4060 * Sets the color used to display the selection highlight. 4061 * 4062 * @attr ref android.R.styleable#TextView_textColorHighlight 4063 */ 4064 @android.view.RemotableViewMethod 4065 public void setHighlightColor(@ColorInt int color) { 4066 if (mHighlightColor != color) { 4067 mHighlightColor = color; 4068 invalidate(); 4069 } 4070 } 4071 4072 /** 4073 * @return the color used to display the selection highlight 4074 * 4075 * @see #setHighlightColor(int) 4076 * 4077 * @attr ref android.R.styleable#TextView_textColorHighlight 4078 */ 4079 @ColorInt 4080 public int getHighlightColor() { 4081 return mHighlightColor; 4082 } 4083 4084 /** 4085 * Sets whether the soft input method will be made visible when this 4086 * TextView gets focused. The default is true. 4087 */ 4088 @android.view.RemotableViewMethod 4089 public final void setShowSoftInputOnFocus(boolean show) { 4090 createEditorIfNeeded(); 4091 mEditor.mShowSoftInputOnFocus = show; 4092 } 4093 4094 /** 4095 * Returns whether the soft input method will be made visible when this 4096 * TextView gets focused. The default is true. 4097 */ 4098 public final boolean getShowSoftInputOnFocus() { 4099 // When there is no Editor, return default true value 4100 return mEditor == null || mEditor.mShowSoftInputOnFocus; 4101 } 4102 4103 /** 4104 * Gives the text a shadow of the specified blur radius and color, the specified 4105 * distance from its drawn position. 4106 * <p> 4107 * The text shadow produced does not interact with the properties on view 4108 * that are responsible for real time shadows, 4109 * {@link View#getElevation() elevation} and 4110 * {@link View#getTranslationZ() translationZ}. 4111 * 4112 * @see Paint#setShadowLayer(float, float, float, int) 4113 * 4114 * @attr ref android.R.styleable#TextView_shadowColor 4115 * @attr ref android.R.styleable#TextView_shadowDx 4116 * @attr ref android.R.styleable#TextView_shadowDy 4117 * @attr ref android.R.styleable#TextView_shadowRadius 4118 */ 4119 public void setShadowLayer(float radius, float dx, float dy, int color) { 4120 mTextPaint.setShadowLayer(radius, dx, dy, color); 4121 4122 mShadowRadius = radius; 4123 mShadowDx = dx; 4124 mShadowDy = dy; 4125 mShadowColor = color; 4126 4127 // Will change text clip region 4128 if (mEditor != null) { 4129 mEditor.invalidateTextDisplayList(); 4130 mEditor.invalidateHandlesAndActionMode(); 4131 } 4132 invalidate(); 4133 } 4134 4135 /** 4136 * Gets the radius of the shadow layer. 4137 * 4138 * @return the radius of the shadow layer. If 0, the shadow layer is not visible 4139 * 4140 * @see #setShadowLayer(float, float, float, int) 4141 * 4142 * @attr ref android.R.styleable#TextView_shadowRadius 4143 */ 4144 public float getShadowRadius() { 4145 return mShadowRadius; 4146 } 4147 4148 /** 4149 * @return the horizontal offset of the shadow layer 4150 * 4151 * @see #setShadowLayer(float, float, float, int) 4152 * 4153 * @attr ref android.R.styleable#TextView_shadowDx 4154 */ 4155 public float getShadowDx() { 4156 return mShadowDx; 4157 } 4158 4159 /** 4160 * Gets the vertical offset of the shadow layer. 4161 * @return The vertical offset of the shadow layer. 4162 * 4163 * @see #setShadowLayer(float, float, float, int) 4164 * 4165 * @attr ref android.R.styleable#TextView_shadowDy 4166 */ 4167 public float getShadowDy() { 4168 return mShadowDy; 4169 } 4170 4171 /** 4172 * Gets the color of the shadow layer. 4173 * @return the color of the shadow layer 4174 * 4175 * @see #setShadowLayer(float, float, float, int) 4176 * 4177 * @attr ref android.R.styleable#TextView_shadowColor 4178 */ 4179 @ColorInt 4180 public int getShadowColor() { 4181 return mShadowColor; 4182 } 4183 4184 /** 4185 * Gets the {@link TextPaint} used for the text. 4186 * Use this only to consult the Paint's properties and not to change them. 4187 * @return The base paint used for the text. 4188 */ 4189 public TextPaint getPaint() { 4190 return mTextPaint; 4191 } 4192 4193 /** 4194 * Sets the autolink mask of the text. See {@link 4195 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 4196 * possible values. 4197 * 4198 * @attr ref android.R.styleable#TextView_autoLink 4199 */ 4200 @android.view.RemotableViewMethod 4201 public final void setAutoLinkMask(int mask) { 4202 mAutoLinkMask = mask; 4203 } 4204 4205 /** 4206 * Sets whether the movement method will automatically be set to 4207 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 4208 * set to nonzero and links are detected in {@link #setText}. 4209 * The default is true. 4210 * 4211 * @attr ref android.R.styleable#TextView_linksClickable 4212 */ 4213 @android.view.RemotableViewMethod 4214 public final void setLinksClickable(boolean whether) { 4215 mLinksClickable = whether; 4216 } 4217 4218 /** 4219 * Returns whether the movement method will automatically be set to 4220 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 4221 * set to nonzero and links are detected in {@link #setText}. 4222 * The default is true. 4223 * 4224 * @attr ref android.R.styleable#TextView_linksClickable 4225 */ 4226 public final boolean getLinksClickable() { 4227 return mLinksClickable; 4228 } 4229 4230 /** 4231 * Returns the list of {@link android.text.style.URLSpan URLSpans} attached to the text 4232 * (by {@link Linkify} or otherwise) if any. You can call 4233 * {@link URLSpan#getURL} on them to find where they link to 4234 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 4235 * to find the region of the text they are attached to. 4236 */ 4237 public URLSpan[] getUrls() { 4238 if (mText instanceof Spanned) { 4239 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 4240 } else { 4241 return new URLSpan[0]; 4242 } 4243 } 4244 4245 /** 4246 * Sets the color of the hint text for all the states (disabled, focussed, selected...) of this 4247 * TextView. 4248 * 4249 * @see #setHintTextColor(ColorStateList) 4250 * @see #getHintTextColors() 4251 * @see #setTextColor(int) 4252 * 4253 * @attr ref android.R.styleable#TextView_textColorHint 4254 */ 4255 @android.view.RemotableViewMethod 4256 public final void setHintTextColor(@ColorInt int color) { 4257 mHintTextColor = ColorStateList.valueOf(color); 4258 updateTextColors(); 4259 } 4260 4261 /** 4262 * Sets the color of the hint text. 4263 * 4264 * @see #getHintTextColors() 4265 * @see #setHintTextColor(int) 4266 * @see #setTextColor(ColorStateList) 4267 * @see #setLinkTextColor(ColorStateList) 4268 * 4269 * @attr ref android.R.styleable#TextView_textColorHint 4270 */ 4271 public final void setHintTextColor(ColorStateList colors) { 4272 mHintTextColor = colors; 4273 updateTextColors(); 4274 } 4275 4276 /** 4277 * @return the color of the hint text, for the different states of this TextView. 4278 * 4279 * @see #setHintTextColor(ColorStateList) 4280 * @see #setHintTextColor(int) 4281 * @see #setTextColor(ColorStateList) 4282 * @see #setLinkTextColor(ColorStateList) 4283 * 4284 * @attr ref android.R.styleable#TextView_textColorHint 4285 */ 4286 public final ColorStateList getHintTextColors() { 4287 return mHintTextColor; 4288 } 4289 4290 /** 4291 * <p>Return the current color selected to paint the hint text.</p> 4292 * 4293 * @return Returns the current hint text color. 4294 */ 4295 @ColorInt 4296 public final int getCurrentHintTextColor() { 4297 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 4298 } 4299 4300 /** 4301 * Sets the color of links in the text. 4302 * 4303 * @see #setLinkTextColor(ColorStateList) 4304 * @see #getLinkTextColors() 4305 * 4306 * @attr ref android.R.styleable#TextView_textColorLink 4307 */ 4308 @android.view.RemotableViewMethod 4309 public final void setLinkTextColor(@ColorInt int color) { 4310 mLinkTextColor = ColorStateList.valueOf(color); 4311 updateTextColors(); 4312 } 4313 4314 /** 4315 * Sets the color of links in the text. 4316 * 4317 * @see #setLinkTextColor(int) 4318 * @see #getLinkTextColors() 4319 * @see #setTextColor(ColorStateList) 4320 * @see #setHintTextColor(ColorStateList) 4321 * 4322 * @attr ref android.R.styleable#TextView_textColorLink 4323 */ 4324 public final void setLinkTextColor(ColorStateList colors) { 4325 mLinkTextColor = colors; 4326 updateTextColors(); 4327 } 4328 4329 /** 4330 * @return the list of colors used to paint the links in the text, for the different states of 4331 * this TextView 4332 * 4333 * @see #setLinkTextColor(ColorStateList) 4334 * @see #setLinkTextColor(int) 4335 * 4336 * @attr ref android.R.styleable#TextView_textColorLink 4337 */ 4338 public final ColorStateList getLinkTextColors() { 4339 return mLinkTextColor; 4340 } 4341 4342 /** 4343 * Sets the horizontal alignment of the text and the 4344 * vertical gravity that will be used when there is extra space 4345 * in the TextView beyond what is required for the text itself. 4346 * 4347 * @see android.view.Gravity 4348 * @attr ref android.R.styleable#TextView_gravity 4349 */ 4350 public void setGravity(int gravity) { 4351 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 4352 gravity |= Gravity.START; 4353 } 4354 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 4355 gravity |= Gravity.TOP; 4356 } 4357 4358 boolean newLayout = false; 4359 4360 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) 4361 != (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 4362 newLayout = true; 4363 } 4364 4365 if (gravity != mGravity) { 4366 invalidate(); 4367 } 4368 4369 mGravity = gravity; 4370 4371 if (mLayout != null && newLayout) { 4372 // XXX this is heavy-handed because no actual content changes. 4373 int want = mLayout.getWidth(); 4374 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 4375 4376 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 4377 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), true); 4378 } 4379 } 4380 4381 /** 4382 * Returns the horizontal and vertical alignment of this TextView. 4383 * 4384 * @see android.view.Gravity 4385 * @attr ref android.R.styleable#TextView_gravity 4386 */ 4387 public int getGravity() { 4388 return mGravity; 4389 } 4390 4391 /** 4392 * Gets the flags on the Paint being used to display the text. 4393 * @return The flags on the Paint being used to display the text. 4394 * @see Paint#getFlags 4395 */ 4396 public int getPaintFlags() { 4397 return mTextPaint.getFlags(); 4398 } 4399 4400 /** 4401 * Sets flags on the Paint being used to display the text and 4402 * reflows the text if they are different from the old flags. 4403 * @see Paint#setFlags 4404 */ 4405 @android.view.RemotableViewMethod 4406 public void setPaintFlags(int flags) { 4407 if (mTextPaint.getFlags() != flags) { 4408 mTextPaint.setFlags(flags); 4409 4410 if (mLayout != null) { 4411 nullLayouts(); 4412 requestLayout(); 4413 invalidate(); 4414 } 4415 } 4416 } 4417 4418 /** 4419 * Sets whether the text should be allowed to be wider than the 4420 * View is. If false, it will be wrapped to the width of the View. 4421 * 4422 * @attr ref android.R.styleable#TextView_scrollHorizontally 4423 */ 4424 public void setHorizontallyScrolling(boolean whether) { 4425 if (mHorizontallyScrolling != whether) { 4426 mHorizontallyScrolling = whether; 4427 4428 if (mLayout != null) { 4429 nullLayouts(); 4430 requestLayout(); 4431 invalidate(); 4432 } 4433 } 4434 } 4435 4436 /** 4437 * Returns whether the text is allowed to be wider than the View is. 4438 * If false, the text will be wrapped to the width of the View. 4439 * 4440 * @attr ref android.R.styleable#TextView_scrollHorizontally 4441 * @hide 4442 */ 4443 public boolean getHorizontallyScrolling() { 4444 return mHorizontallyScrolling; 4445 } 4446 4447 /** 4448 * Sets the height of the TextView to be at least {@code minLines} tall. 4449 * <p> 4450 * This value is used for height calculation if LayoutParams does not force TextView to have an 4451 * exact height. Setting this value overrides other previous minimum height configurations such 4452 * as {@link #setMinHeight(int)} or {@link #setHeight(int)}. {@link #setSingleLine()} will set 4453 * this value to 1. 4454 * 4455 * @param minLines the minimum height of TextView in terms of number of lines 4456 * 4457 * @see #getMinLines() 4458 * @see #setLines(int) 4459 * 4460 * @attr ref android.R.styleable#TextView_minLines 4461 */ 4462 @android.view.RemotableViewMethod 4463 public void setMinLines(int minLines) { 4464 mMinimum = minLines; 4465 mMinMode = LINES; 4466 4467 requestLayout(); 4468 invalidate(); 4469 } 4470 4471 /** 4472 * Returns the minimum height of TextView in terms of number of lines or -1 if the minimum 4473 * height was set using {@link #setMinHeight(int)} or {@link #setHeight(int)}. 4474 * 4475 * @return the minimum height of TextView in terms of number of lines or -1 if the minimum 4476 * height is not defined in lines 4477 * 4478 * @see #setMinLines(int) 4479 * @see #setLines(int) 4480 * 4481 * @attr ref android.R.styleable#TextView_minLines 4482 */ 4483 public int getMinLines() { 4484 return mMinMode == LINES ? mMinimum : -1; 4485 } 4486 4487 /** 4488 * Sets the height of the TextView to be at least {@code minPixels} tall. 4489 * <p> 4490 * This value is used for height calculation if LayoutParams does not force TextView to have an 4491 * exact height. Setting this value overrides previous minimum height configurations such as 4492 * {@link #setMinLines(int)} or {@link #setLines(int)}. 4493 * <p> 4494 * The value given here is different than {@link #setMinimumHeight(int)}. Between 4495 * {@code minHeight} and the value set in {@link #setMinimumHeight(int)}, the greater one is 4496 * used to decide the final height. 4497 * 4498 * @param minPixels the minimum height of TextView in terms of pixels 4499 * 4500 * @see #getMinHeight() 4501 * @see #setHeight(int) 4502 * 4503 * @attr ref android.R.styleable#TextView_minHeight 4504 */ 4505 @android.view.RemotableViewMethod 4506 public void setMinHeight(int minPixels) { 4507 mMinimum = minPixels; 4508 mMinMode = PIXELS; 4509 4510 requestLayout(); 4511 invalidate(); 4512 } 4513 4514 /** 4515 * Returns the minimum height of TextView in terms of pixels or -1 if the minimum height was 4516 * set using {@link #setMinLines(int)} or {@link #setLines(int)}. 4517 * 4518 * @return the minimum height of TextView in terms of pixels or -1 if the minimum height is not 4519 * defined in pixels 4520 * 4521 * @see #setMinHeight(int) 4522 * @see #setHeight(int) 4523 * 4524 * @attr ref android.R.styleable#TextView_minHeight 4525 */ 4526 public int getMinHeight() { 4527 return mMinMode == PIXELS ? mMinimum : -1; 4528 } 4529 4530 /** 4531 * Sets the height of the TextView to be at most {@code maxLines} tall. 4532 * <p> 4533 * This value is used for height calculation if LayoutParams does not force TextView to have an 4534 * exact height. Setting this value overrides previous maximum height configurations such as 4535 * {@link #setMaxHeight(int)} or {@link #setLines(int)}. 4536 * 4537 * @param maxLines the maximum height of TextView in terms of number of lines 4538 * 4539 * @see #getMaxLines() 4540 * @see #setLines(int) 4541 * 4542 * @attr ref android.R.styleable#TextView_maxLines 4543 */ 4544 @android.view.RemotableViewMethod 4545 public void setMaxLines(int maxLines) { 4546 mMaximum = maxLines; 4547 mMaxMode = LINES; 4548 4549 requestLayout(); 4550 invalidate(); 4551 } 4552 4553 /** 4554 * Returns the maximum height of TextView in terms of number of lines or -1 if the 4555 * maximum height was set using {@link #setMaxHeight(int)} or {@link #setHeight(int)}. 4556 * 4557 * @return the maximum height of TextView in terms of number of lines. -1 if the maximum height 4558 * is not defined in lines. 4559 * 4560 * @see #setMaxLines(int) 4561 * @see #setLines(int) 4562 * 4563 * @attr ref android.R.styleable#TextView_maxLines 4564 */ 4565 public int getMaxLines() { 4566 return mMaxMode == LINES ? mMaximum : -1; 4567 } 4568 4569 /** 4570 * Sets the height of the TextView to be at most {@code maxPixels} tall. 4571 * <p> 4572 * This value is used for height calculation if LayoutParams does not force TextView to have an 4573 * exact height. Setting this value overrides previous maximum height configurations such as 4574 * {@link #setMaxLines(int)} or {@link #setLines(int)}. 4575 * 4576 * @param maxPixels the maximum height of TextView in terms of pixels 4577 * 4578 * @see #getMaxHeight() 4579 * @see #setHeight(int) 4580 * 4581 * @attr ref android.R.styleable#TextView_maxHeight 4582 */ 4583 @android.view.RemotableViewMethod 4584 public void setMaxHeight(int maxPixels) { 4585 mMaximum = maxPixels; 4586 mMaxMode = PIXELS; 4587 4588 requestLayout(); 4589 invalidate(); 4590 } 4591 4592 /** 4593 * Returns the maximum height of TextView in terms of pixels or -1 if the maximum height was 4594 * set using {@link #setMaxLines(int)} or {@link #setLines(int)}. 4595 * 4596 * @return the maximum height of TextView in terms of pixels or -1 if the maximum height 4597 * is not defined in pixels 4598 * 4599 * @see #setMaxHeight(int) 4600 * @see #setHeight(int) 4601 * 4602 * @attr ref android.R.styleable#TextView_maxHeight 4603 */ 4604 public int getMaxHeight() { 4605 return mMaxMode == PIXELS ? mMaximum : -1; 4606 } 4607 4608 /** 4609 * Sets the height of the TextView to be exactly {@code lines} tall. 4610 * <p> 4611 * This value is used for height calculation if LayoutParams does not force TextView to have an 4612 * exact height. Setting this value overrides previous minimum/maximum height configurations 4613 * such as {@link #setMinLines(int)} or {@link #setMaxLines(int)}. {@link #setSingleLine()} will 4614 * set this value to 1. 4615 * 4616 * @param lines the exact height of the TextView in terms of lines 4617 * 4618 * @see #setHeight(int) 4619 * 4620 * @attr ref android.R.styleable#TextView_lines 4621 */ 4622 @android.view.RemotableViewMethod 4623 public void setLines(int lines) { 4624 mMaximum = mMinimum = lines; 4625 mMaxMode = mMinMode = LINES; 4626 4627 requestLayout(); 4628 invalidate(); 4629 } 4630 4631 /** 4632 * Sets the height of the TextView to be exactly <code>pixels</code> tall. 4633 * <p> 4634 * This value is used for height calculation if LayoutParams does not force TextView to have an 4635 * exact height. Setting this value overrides previous minimum/maximum height configurations 4636 * such as {@link #setMinHeight(int)} or {@link #setMaxHeight(int)}. 4637 * 4638 * @param pixels the exact height of the TextView in terms of pixels 4639 * 4640 * @see #setLines(int) 4641 * 4642 * @attr ref android.R.styleable#TextView_height 4643 */ 4644 @android.view.RemotableViewMethod 4645 public void setHeight(int pixels) { 4646 mMaximum = mMinimum = pixels; 4647 mMaxMode = mMinMode = PIXELS; 4648 4649 requestLayout(); 4650 invalidate(); 4651 } 4652 4653 /** 4654 * Sets the width of the TextView to be at least {@code minEms} wide. 4655 * <p> 4656 * This value is used for width calculation if LayoutParams does not force TextView to have an 4657 * exact width. Setting this value overrides previous minimum width configurations such as 4658 * {@link #setMinWidth(int)} or {@link #setWidth(int)}. 4659 * 4660 * @param minEms the minimum width of TextView in terms of ems 4661 * 4662 * @see #getMinEms() 4663 * @see #setEms(int) 4664 * 4665 * @attr ref android.R.styleable#TextView_minEms 4666 */ 4667 @android.view.RemotableViewMethod 4668 public void setMinEms(int minEms) { 4669 mMinWidth = minEms; 4670 mMinWidthMode = EMS; 4671 4672 requestLayout(); 4673 invalidate(); 4674 } 4675 4676 /** 4677 * Returns the minimum width of TextView in terms of ems or -1 if the minimum width was set 4678 * using {@link #setMinWidth(int)} or {@link #setWidth(int)}. 4679 * 4680 * @return the minimum width of TextView in terms of ems. -1 if the minimum width is not 4681 * defined in ems 4682 * 4683 * @see #setMinEms(int) 4684 * @see #setEms(int) 4685 * 4686 * @attr ref android.R.styleable#TextView_minEms 4687 */ 4688 public int getMinEms() { 4689 return mMinWidthMode == EMS ? mMinWidth : -1; 4690 } 4691 4692 /** 4693 * Sets the width of the TextView to be at least {@code minPixels} wide. 4694 * <p> 4695 * This value is used for width calculation if LayoutParams does not force TextView to have an 4696 * exact width. Setting this value overrides previous minimum width configurations such as 4697 * {@link #setMinEms(int)} or {@link #setEms(int)}. 4698 * <p> 4699 * The value given here is different than {@link #setMinimumWidth(int)}. Between 4700 * {@code minWidth} and the value set in {@link #setMinimumWidth(int)}, the greater one is used 4701 * to decide the final width. 4702 * 4703 * @param minPixels the minimum width of TextView in terms of pixels 4704 * 4705 * @see #getMinWidth() 4706 * @see #setWidth(int) 4707 * 4708 * @attr ref android.R.styleable#TextView_minWidth 4709 */ 4710 @android.view.RemotableViewMethod 4711 public void setMinWidth(int minPixels) { 4712 mMinWidth = minPixels; 4713 mMinWidthMode = PIXELS; 4714 4715 requestLayout(); 4716 invalidate(); 4717 } 4718 4719 /** 4720 * Returns the minimum width of TextView in terms of pixels or -1 if the minimum width was set 4721 * using {@link #setMinEms(int)} or {@link #setEms(int)}. 4722 * 4723 * @return the minimum width of TextView in terms of pixels or -1 if the minimum width is not 4724 * defined in pixels 4725 * 4726 * @see #setMinWidth(int) 4727 * @see #setWidth(int) 4728 * 4729 * @attr ref android.R.styleable#TextView_minWidth 4730 */ 4731 public int getMinWidth() { 4732 return mMinWidthMode == PIXELS ? mMinWidth : -1; 4733 } 4734 4735 /** 4736 * Sets the width of the TextView to be at most {@code maxEms} wide. 4737 * <p> 4738 * This value is used for width calculation if LayoutParams does not force TextView to have an 4739 * exact width. Setting this value overrides previous maximum width configurations such as 4740 * {@link #setMaxWidth(int)} or {@link #setWidth(int)}. 4741 * 4742 * @param maxEms the maximum width of TextView in terms of ems 4743 * 4744 * @see #getMaxEms() 4745 * @see #setEms(int) 4746 * 4747 * @attr ref android.R.styleable#TextView_maxEms 4748 */ 4749 @android.view.RemotableViewMethod 4750 public void setMaxEms(int maxEms) { 4751 mMaxWidth = maxEms; 4752 mMaxWidthMode = EMS; 4753 4754 requestLayout(); 4755 invalidate(); 4756 } 4757 4758 /** 4759 * Returns the maximum width of TextView in terms of ems or -1 if the maximum width was set 4760 * using {@link #setMaxWidth(int)} or {@link #setWidth(int)}. 4761 * 4762 * @return the maximum width of TextView in terms of ems or -1 if the maximum width is not 4763 * defined in ems 4764 * 4765 * @see #setMaxEms(int) 4766 * @see #setEms(int) 4767 * 4768 * @attr ref android.R.styleable#TextView_maxEms 4769 */ 4770 public int getMaxEms() { 4771 return mMaxWidthMode == EMS ? mMaxWidth : -1; 4772 } 4773 4774 /** 4775 * Sets the width of the TextView to be at most {@code maxPixels} wide. 4776 * <p> 4777 * This value is used for width calculation if LayoutParams does not force TextView to have an 4778 * exact width. Setting this value overrides previous maximum width configurations such as 4779 * {@link #setMaxEms(int)} or {@link #setEms(int)}. 4780 * 4781 * @param maxPixels the maximum width of TextView in terms of pixels 4782 * 4783 * @see #getMaxWidth() 4784 * @see #setWidth(int) 4785 * 4786 * @attr ref android.R.styleable#TextView_maxWidth 4787 */ 4788 @android.view.RemotableViewMethod 4789 public void setMaxWidth(int maxPixels) { 4790 mMaxWidth = maxPixels; 4791 mMaxWidthMode = PIXELS; 4792 4793 requestLayout(); 4794 invalidate(); 4795 } 4796 4797 /** 4798 * Returns the maximum width of TextView in terms of pixels or -1 if the maximum width was set 4799 * using {@link #setMaxEms(int)} or {@link #setEms(int)}. 4800 * 4801 * @return the maximum width of TextView in terms of pixels. -1 if the maximum width is not 4802 * defined in pixels 4803 * 4804 * @see #setMaxWidth(int) 4805 * @see #setWidth(int) 4806 * 4807 * @attr ref android.R.styleable#TextView_maxWidth 4808 */ 4809 public int getMaxWidth() { 4810 return mMaxWidthMode == PIXELS ? mMaxWidth : -1; 4811 } 4812 4813 /** 4814 * Sets the width of the TextView to be exactly {@code ems} wide. 4815 * 4816 * This value is used for width calculation if LayoutParams does not force TextView to have an 4817 * exact width. Setting this value overrides previous minimum/maximum configurations such as 4818 * {@link #setMinEms(int)} or {@link #setMaxEms(int)}. 4819 * 4820 * @param ems the exact width of the TextView in terms of ems 4821 * 4822 * @see #setWidth(int) 4823 * 4824 * @attr ref android.R.styleable#TextView_ems 4825 */ 4826 @android.view.RemotableViewMethod 4827 public void setEms(int ems) { 4828 mMaxWidth = mMinWidth = ems; 4829 mMaxWidthMode = mMinWidthMode = EMS; 4830 4831 requestLayout(); 4832 invalidate(); 4833 } 4834 4835 /** 4836 * Sets the width of the TextView to be exactly {@code pixels} wide. 4837 * <p> 4838 * This value is used for width calculation if LayoutParams does not force TextView to have an 4839 * exact width. Setting this value overrides previous minimum/maximum width configurations 4840 * such as {@link #setMinWidth(int)} or {@link #setMaxWidth(int)}. 4841 * 4842 * @param pixels the exact width of the TextView in terms of pixels 4843 * 4844 * @see #setEms(int) 4845 * 4846 * @attr ref android.R.styleable#TextView_width 4847 */ 4848 @android.view.RemotableViewMethod 4849 public void setWidth(int pixels) { 4850 mMaxWidth = mMinWidth = pixels; 4851 mMaxWidthMode = mMinWidthMode = PIXELS; 4852 4853 requestLayout(); 4854 invalidate(); 4855 } 4856 4857 /** 4858 * Sets line spacing for this TextView. Each line other than the last line will have its height 4859 * multiplied by {@code mult} and have {@code add} added to it. 4860 * 4861 * 4862 * @attr ref android.R.styleable#TextView_lineSpacingExtra 4863 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 4864 */ 4865 public void setLineSpacing(float add, float mult) { 4866 if (mSpacingAdd != add || mSpacingMult != mult) { 4867 mSpacingAdd = add; 4868 mSpacingMult = mult; 4869 4870 if (mLayout != null) { 4871 nullLayouts(); 4872 requestLayout(); 4873 invalidate(); 4874 } 4875 } 4876 } 4877 4878 /** 4879 * Gets the line spacing multiplier 4880 * 4881 * @return the value by which each line's height is multiplied to get its actual height. 4882 * 4883 * @see #setLineSpacing(float, float) 4884 * @see #getLineSpacingExtra() 4885 * 4886 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 4887 */ 4888 public float getLineSpacingMultiplier() { 4889 return mSpacingMult; 4890 } 4891 4892 /** 4893 * Gets the line spacing extra space 4894 * 4895 * @return the extra space that is added to the height of each lines of this TextView. 4896 * 4897 * @see #setLineSpacing(float, float) 4898 * @see #getLineSpacingMultiplier() 4899 * 4900 * @attr ref android.R.styleable#TextView_lineSpacingExtra 4901 */ 4902 public float getLineSpacingExtra() { 4903 return mSpacingAdd; 4904 } 4905 4906 /** 4907 * Convenience method to append the specified text to the TextView's 4908 * display buffer, upgrading it to {@link android.widget.TextView.BufferType#EDITABLE} 4909 * if it was not already editable. 4910 * 4911 * @param text text to be appended to the already displayed text 4912 */ 4913 public final void append(CharSequence text) { 4914 append(text, 0, text.length()); 4915 } 4916 4917 /** 4918 * Convenience method to append the specified text slice to the TextView's 4919 * display buffer, upgrading it to {@link android.widget.TextView.BufferType#EDITABLE} 4920 * if it was not already editable. 4921 * 4922 * @param text text to be appended to the already displayed text 4923 * @param start the index of the first character in the {@code text} 4924 * @param end the index of the character following the last character in the {@code text} 4925 * 4926 * @see Appendable#append(CharSequence, int, int) 4927 */ 4928 public void append(CharSequence text, int start, int end) { 4929 if (!(mText instanceof Editable)) { 4930 setText(mText, BufferType.EDITABLE); 4931 } 4932 4933 ((Editable) mText).append(text, start, end); 4934 4935 if (mAutoLinkMask != 0) { 4936 boolean linksWereAdded = Linkify.addLinks((Spannable) mText, mAutoLinkMask); 4937 // Do not change the movement method for text that support text selection as it 4938 // would prevent an arbitrary cursor displacement. 4939 if (linksWereAdded && mLinksClickable && !textCanBeSelected()) { 4940 setMovementMethod(LinkMovementMethod.getInstance()); 4941 } 4942 } 4943 } 4944 4945 private void updateTextColors() { 4946 boolean inval = false; 4947 final int[] drawableState = getDrawableState(); 4948 int color = mTextColor.getColorForState(drawableState, 0); 4949 if (color != mCurTextColor) { 4950 mCurTextColor = color; 4951 inval = true; 4952 } 4953 if (mLinkTextColor != null) { 4954 color = mLinkTextColor.getColorForState(drawableState, 0); 4955 if (color != mTextPaint.linkColor) { 4956 mTextPaint.linkColor = color; 4957 inval = true; 4958 } 4959 } 4960 if (mHintTextColor != null) { 4961 color = mHintTextColor.getColorForState(drawableState, 0); 4962 if (color != mCurHintTextColor) { 4963 mCurHintTextColor = color; 4964 if (mText.length() == 0) { 4965 inval = true; 4966 } 4967 } 4968 } 4969 if (inval) { 4970 // Text needs to be redrawn with the new color 4971 if (mEditor != null) mEditor.invalidateTextDisplayList(); 4972 invalidate(); 4973 } 4974 } 4975 4976 @Override 4977 protected void drawableStateChanged() { 4978 super.drawableStateChanged(); 4979 4980 if (mTextColor != null && mTextColor.isStateful() 4981 || (mHintTextColor != null && mHintTextColor.isStateful()) 4982 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 4983 updateTextColors(); 4984 } 4985 4986 if (mDrawables != null) { 4987 final int[] state = getDrawableState(); 4988 for (Drawable dr : mDrawables.mShowing) { 4989 if (dr != null && dr.isStateful() && dr.setState(state)) { 4990 invalidateDrawable(dr); 4991 } 4992 } 4993 } 4994 } 4995 4996 @Override 4997 public void drawableHotspotChanged(float x, float y) { 4998 super.drawableHotspotChanged(x, y); 4999 5000 if (mDrawables != null) { 5001 for (Drawable dr : mDrawables.mShowing) { 5002 if (dr != null) { 5003 dr.setHotspot(x, y); 5004 } 5005 } 5006 } 5007 } 5008 5009 @Override 5010 public Parcelable onSaveInstanceState() { 5011 Parcelable superState = super.onSaveInstanceState(); 5012 5013 // Save state if we are forced to 5014 final boolean freezesText = getFreezesText(); 5015 boolean hasSelection = false; 5016 int start = -1; 5017 int end = -1; 5018 5019 if (mText != null) { 5020 start = getSelectionStart(); 5021 end = getSelectionEnd(); 5022 if (start >= 0 || end >= 0) { 5023 // Or save state if there is a selection 5024 hasSelection = true; 5025 } 5026 } 5027 5028 if (freezesText || hasSelection) { 5029 SavedState ss = new SavedState(superState); 5030 5031 if (freezesText) { 5032 if (mText instanceof Spanned) { 5033 final Spannable sp = new SpannableStringBuilder(mText); 5034 5035 if (mEditor != null) { 5036 removeMisspelledSpans(sp); 5037 sp.removeSpan(mEditor.mSuggestionRangeSpan); 5038 } 5039 5040 ss.text = sp; 5041 } else { 5042 ss.text = mText.toString(); 5043 } 5044 } 5045 5046 if (hasSelection) { 5047 // XXX Should also save the current scroll position! 5048 ss.selStart = start; 5049 ss.selEnd = end; 5050 } 5051 5052 if (isFocused() && start >= 0 && end >= 0) { 5053 ss.frozenWithFocus = true; 5054 } 5055 5056 ss.error = getError(); 5057 5058 if (mEditor != null) { 5059 ss.editorState = mEditor.saveInstanceState(); 5060 } 5061 return ss; 5062 } 5063 5064 return superState; 5065 } 5066 5067 void removeMisspelledSpans(Spannable spannable) { 5068 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(), 5069 SuggestionSpan.class); 5070 for (int i = 0; i < suggestionSpans.length; i++) { 5071 int flags = suggestionSpans[i].getFlags(); 5072 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 5073 && (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) { 5074 spannable.removeSpan(suggestionSpans[i]); 5075 } 5076 } 5077 } 5078 5079 @Override 5080 public void onRestoreInstanceState(Parcelable state) { 5081 if (!(state instanceof SavedState)) { 5082 super.onRestoreInstanceState(state); 5083 return; 5084 } 5085 5086 SavedState ss = (SavedState) state; 5087 super.onRestoreInstanceState(ss.getSuperState()); 5088 5089 // XXX restore buffer type too, as well as lots of other stuff 5090 if (ss.text != null) { 5091 setText(ss.text); 5092 } 5093 5094 if (ss.selStart >= 0 && ss.selEnd >= 0) { 5095 if (mText instanceof Spannable) { 5096 int len = mText.length(); 5097 5098 if (ss.selStart > len || ss.selEnd > len) { 5099 String restored = ""; 5100 5101 if (ss.text != null) { 5102 restored = "(restored) "; 5103 } 5104 5105 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + "/" + ss.selEnd 5106 + " out of range for " + restored + "text " + mText); 5107 } else { 5108 Selection.setSelection((Spannable) mText, ss.selStart, ss.selEnd); 5109 5110 if (ss.frozenWithFocus) { 5111 createEditorIfNeeded(); 5112 mEditor.mFrozenWithFocus = true; 5113 } 5114 } 5115 } 5116 } 5117 5118 if (ss.error != null) { 5119 final CharSequence error = ss.error; 5120 // Display the error later, after the first layout pass 5121 post(new Runnable() { 5122 public void run() { 5123 if (mEditor == null || !mEditor.mErrorWasChanged) { 5124 setError(error); 5125 } 5126 } 5127 }); 5128 } 5129 5130 if (ss.editorState != null) { 5131 createEditorIfNeeded(); 5132 mEditor.restoreInstanceState(ss.editorState); 5133 } 5134 } 5135 5136 /** 5137 * Control whether this text view saves its entire text contents when 5138 * freezing to an icicle, in addition to dynamic state such as cursor 5139 * position. By default this is false, not saving the text. Set to true 5140 * if the text in the text view is not being saved somewhere else in 5141 * persistent storage (such as in a content provider) so that if the 5142 * view is later thawed the user will not lose their data. For 5143 * {@link android.widget.EditText} it is always enabled, regardless of 5144 * the value of the attribute. 5145 * 5146 * @param freezesText Controls whether a frozen icicle should include the 5147 * entire text data: true to include it, false to not. 5148 * 5149 * @attr ref android.R.styleable#TextView_freezesText 5150 */ 5151 @android.view.RemotableViewMethod 5152 public void setFreezesText(boolean freezesText) { 5153 mFreezesText = freezesText; 5154 } 5155 5156 /** 5157 * Return whether this text view is including its entire text contents 5158 * in frozen icicles. For {@link android.widget.EditText} it always returns true. 5159 * 5160 * @return Returns true if text is included, false if it isn't. 5161 * 5162 * @see #setFreezesText 5163 */ 5164 public boolean getFreezesText() { 5165 return mFreezesText; 5166 } 5167 5168 /////////////////////////////////////////////////////////////////////////// 5169 5170 /** 5171 * Sets the Factory used to create new {@link Editable Editables}. 5172 * 5173 * @param factory {@link android.text.Editable.Factory Editable.Factory} to be used 5174 * 5175 * @see android.text.Editable.Factory 5176 * @see android.widget.TextView.BufferType#EDITABLE 5177 */ 5178 public final void setEditableFactory(Editable.Factory factory) { 5179 mEditableFactory = factory; 5180 setText(mText); 5181 } 5182 5183 /** 5184 * Sets the Factory used to create new {@link Spannable Spannables}. 5185 * 5186 * @param factory {@link android.text.Spannable.Factory Spannable.Factory} to be used 5187 * 5188 * @see android.text.Spannable.Factory 5189 * @see android.widget.TextView.BufferType#SPANNABLE 5190 */ 5191 public final void setSpannableFactory(Spannable.Factory factory) { 5192 mSpannableFactory = factory; 5193 setText(mText); 5194 } 5195 5196 /** 5197 * Sets the text to be displayed. TextView <em>does not</em> accept 5198 * HTML-like formatting, which you can do with text strings in XML resource files. 5199 * To style your strings, attach android.text.style.* objects to a 5200 * {@link android.text.SpannableString}, or see the 5201 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 5202 * Available Resource Types</a> documentation for an example of setting 5203 * formatted text in the XML resource file. 5204 * <p/> 5205 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5206 * intermediate {@link Spannable Spannables}. Likewise it will use 5207 * {@link android.text.Editable.Factory} to create final or intermediate 5208 * {@link Editable Editables}. 5209 * 5210 * @param text text to be displayed 5211 * 5212 * @attr ref android.R.styleable#TextView_text 5213 */ 5214 @android.view.RemotableViewMethod 5215 public final void setText(CharSequence text) { 5216 setText(text, mBufferType); 5217 } 5218 5219 /** 5220 * Sets the text to be displayed but retains the cursor position. Same as 5221 * {@link #setText(CharSequence)} except that the cursor position (if any) is retained in the 5222 * new text. 5223 * <p/> 5224 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5225 * intermediate {@link Spannable Spannables}. Likewise it will use 5226 * {@link android.text.Editable.Factory} to create final or intermediate 5227 * {@link Editable Editables}. 5228 * 5229 * @param text text to be displayed 5230 * 5231 * @see #setText(CharSequence) 5232 */ 5233 @android.view.RemotableViewMethod 5234 public final void setTextKeepState(CharSequence text) { 5235 setTextKeepState(text, mBufferType); 5236 } 5237 5238 /** 5239 * Sets the text to be displayed and the {@link android.widget.TextView.BufferType}. 5240 * <p/> 5241 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5242 * intermediate {@link Spannable Spannables}. Likewise it will use 5243 * {@link android.text.Editable.Factory} to create final or intermediate 5244 * {@link Editable Editables}. 5245 * 5246 * @param text text to be displayed 5247 * @param type a {@link android.widget.TextView.BufferType} which defines whether the text is 5248 * stored as a static text, styleable/spannable text, or editable text 5249 * 5250 * @see #setText(CharSequence) 5251 * @see android.widget.TextView.BufferType 5252 * @see #setSpannableFactory(Spannable.Factory) 5253 * @see #setEditableFactory(Editable.Factory) 5254 * 5255 * @attr ref android.R.styleable#TextView_text 5256 * @attr ref android.R.styleable#TextView_bufferType 5257 */ 5258 public void setText(CharSequence text, BufferType type) { 5259 setText(text, type, true, 0); 5260 5261 if (mCharWrapper != null) { 5262 mCharWrapper.mChars = null; 5263 } 5264 } 5265 5266 private void setText(CharSequence text, BufferType type, 5267 boolean notifyBefore, int oldlen) { 5268 mTextFromResource = false; 5269 if (text == null) { 5270 text = ""; 5271 } 5272 5273 // If suggestions are not enabled, remove the suggestion spans from the text 5274 if (!isSuggestionsEnabled()) { 5275 text = removeSuggestionSpans(text); 5276 } 5277 5278 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 5279 5280 if (text instanceof Spanned 5281 && ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 5282 if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) { 5283 setHorizontalFadingEdgeEnabled(true); 5284 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 5285 } else { 5286 setHorizontalFadingEdgeEnabled(false); 5287 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 5288 } 5289 setEllipsize(TextUtils.TruncateAt.MARQUEE); 5290 } 5291 5292 int n = mFilters.length; 5293 for (int i = 0; i < n; i++) { 5294 CharSequence out = mFilters[i].filter(text, 0, text.length(), EMPTY_SPANNED, 0, 0); 5295 if (out != null) { 5296 text = out; 5297 } 5298 } 5299 5300 if (notifyBefore) { 5301 if (mText != null) { 5302 oldlen = mText.length(); 5303 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 5304 } else { 5305 sendBeforeTextChanged("", 0, 0, text.length()); 5306 } 5307 } 5308 5309 boolean needEditableForNotification = false; 5310 5311 if (mListeners != null && mListeners.size() != 0) { 5312 needEditableForNotification = true; 5313 } 5314 5315 if (type == BufferType.EDITABLE || getKeyListener() != null 5316 || needEditableForNotification) { 5317 createEditorIfNeeded(); 5318 mEditor.forgetUndoRedo(); 5319 Editable t = mEditableFactory.newEditable(text); 5320 text = t; 5321 setFilters(t, mFilters); 5322 InputMethodManager imm = InputMethodManager.peekInstance(); 5323 if (imm != null) imm.restartInput(this); 5324 } else if (type == BufferType.SPANNABLE || mMovement != null) { 5325 text = mSpannableFactory.newSpannable(text); 5326 } else if (!(text instanceof CharWrapper)) { 5327 text = TextUtils.stringOrSpannedString(text); 5328 } 5329 5330 if (mAutoLinkMask != 0) { 5331 Spannable s2; 5332 5333 if (type == BufferType.EDITABLE || text instanceof Spannable) { 5334 s2 = (Spannable) text; 5335 } else { 5336 s2 = mSpannableFactory.newSpannable(text); 5337 } 5338 5339 if (Linkify.addLinks(s2, mAutoLinkMask)) { 5340 text = s2; 5341 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 5342 5343 /* 5344 * We must go ahead and set the text before changing the 5345 * movement method, because setMovementMethod() may call 5346 * setText() again to try to upgrade the buffer type. 5347 */ 5348 mText = text; 5349 5350 // Do not change the movement method for text that support text selection as it 5351 // would prevent an arbitrary cursor displacement. 5352 if (mLinksClickable && !textCanBeSelected()) { 5353 setMovementMethod(LinkMovementMethod.getInstance()); 5354 } 5355 } 5356 } 5357 5358 mBufferType = type; 5359 mText = text; 5360 5361 if (mTransformation == null) { 5362 mTransformed = text; 5363 } else { 5364 mTransformed = mTransformation.getTransformation(text, this); 5365 } 5366 5367 final int textLength = text.length(); 5368 5369 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 5370 Spannable sp = (Spannable) text; 5371 5372 // Remove any ChangeWatchers that might have come from other TextViews. 5373 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 5374 final int count = watchers.length; 5375 for (int i = 0; i < count; i++) { 5376 sp.removeSpan(watchers[i]); 5377 } 5378 5379 if (mChangeWatcher == null) mChangeWatcher = new ChangeWatcher(); 5380 5381 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE 5382 | (CHANGE_WATCHER_PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 5383 5384 if (mEditor != null) mEditor.addSpanWatchers(sp); 5385 5386 if (mTransformation != null) { 5387 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 5388 } 5389 5390 if (mMovement != null) { 5391 mMovement.initialize(this, (Spannable) text); 5392 5393 /* 5394 * Initializing the movement method will have set the 5395 * selection, so reset mSelectionMoved to keep that from 5396 * interfering with the normal on-focus selection-setting. 5397 */ 5398 if (mEditor != null) mEditor.mSelectionMoved = false; 5399 } 5400 } 5401 5402 if (mLayout != null) { 5403 checkForRelayout(); 5404 } 5405 5406 sendOnTextChanged(text, 0, oldlen, textLength); 5407 onTextChanged(text, 0, oldlen, textLength); 5408 5409 notifyViewAccessibilityStateChangedIfNeeded(AccessibilityEvent.CONTENT_CHANGE_TYPE_TEXT); 5410 5411 if (needEditableForNotification) { 5412 sendAfterTextChanged((Editable) text); 5413 } else { 5414 // Always notify AutoFillManager - it will return right away if autofill is disabled. 5415 notifyAutoFillManagerAfterTextChangedIfNeeded(); 5416 } 5417 5418 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 5419 if (mEditor != null) mEditor.prepareCursorControllers(); 5420 } 5421 5422 /** 5423 * Sets the TextView to display the specified slice of the specified 5424 * char array. You must promise that you will not change the contents 5425 * of the array except for right before another call to setText(), 5426 * since the TextView has no way to know that the text 5427 * has changed and that it needs to invalidate and re-layout. 5428 * 5429 * @param text char array to be displayed 5430 * @param start start index in the char array 5431 * @param len length of char count after {@code start} 5432 */ 5433 public final void setText(char[] text, int start, int len) { 5434 int oldlen = 0; 5435 5436 if (start < 0 || len < 0 || start + len > text.length) { 5437 throw new IndexOutOfBoundsException(start + ", " + len); 5438 } 5439 5440 /* 5441 * We must do the before-notification here ourselves because if 5442 * the old text is a CharWrapper we destroy it before calling 5443 * into the normal path. 5444 */ 5445 if (mText != null) { 5446 oldlen = mText.length(); 5447 sendBeforeTextChanged(mText, 0, oldlen, len); 5448 } else { 5449 sendBeforeTextChanged("", 0, 0, len); 5450 } 5451 5452 if (mCharWrapper == null) { 5453 mCharWrapper = new CharWrapper(text, start, len); 5454 } else { 5455 mCharWrapper.set(text, start, len); 5456 } 5457 5458 setText(mCharWrapper, mBufferType, false, oldlen); 5459 } 5460 5461 /** 5462 * Sets the text to be displayed and the {@link android.widget.TextView.BufferType} but retains 5463 * the cursor position. Same as 5464 * {@link #setText(CharSequence, android.widget.TextView.BufferType)} except that the cursor 5465 * position (if any) is retained in the new text. 5466 * <p/> 5467 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5468 * intermediate {@link Spannable Spannables}. Likewise it will use 5469 * {@link android.text.Editable.Factory} to create final or intermediate 5470 * {@link Editable Editables}. 5471 * 5472 * @param text text to be displayed 5473 * @param type a {@link android.widget.TextView.BufferType} which defines whether the text is 5474 * stored as a static text, styleable/spannable text, or editable text 5475 * 5476 * @see #setText(CharSequence, android.widget.TextView.BufferType) 5477 */ 5478 public final void setTextKeepState(CharSequence text, BufferType type) { 5479 int start = getSelectionStart(); 5480 int end = getSelectionEnd(); 5481 int len = text.length(); 5482 5483 setText(text, type); 5484 5485 if (start >= 0 || end >= 0) { 5486 if (mText instanceof Spannable) { 5487 Selection.setSelection((Spannable) mText, 5488 Math.max(0, Math.min(start, len)), 5489 Math.max(0, Math.min(end, len))); 5490 } 5491 } 5492 } 5493 5494 /** 5495 * Sets the text to be displayed using a string resource identifier. 5496 * 5497 * @param resid the resource identifier of the string resource to be displayed 5498 * 5499 * @see #setText(CharSequence) 5500 * 5501 * @attr ref android.R.styleable#TextView_text 5502 */ 5503 @android.view.RemotableViewMethod 5504 public final void setText(@StringRes int resid) { 5505 setText(getContext().getResources().getText(resid)); 5506 mTextFromResource = true; 5507 } 5508 5509 /** 5510 * Sets the text to be displayed using a string resource identifier and the 5511 * {@link android.widget.TextView.BufferType}. 5512 * <p/> 5513 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5514 * intermediate {@link Spannable Spannables}. Likewise it will use 5515 * {@link android.text.Editable.Factory} to create final or intermediate 5516 * {@link Editable Editables}. 5517 * 5518 * @param resid the resource identifier of the string resource to be displayed 5519 * @param type a {@link android.widget.TextView.BufferType} which defines whether the text is 5520 * stored as a static text, styleable/spannable text, or editable text 5521 * 5522 * @see #setText(int) 5523 * @see #setText(CharSequence) 5524 * @see android.widget.TextView.BufferType 5525 * @see #setSpannableFactory(Spannable.Factory) 5526 * @see #setEditableFactory(Editable.Factory) 5527 * 5528 * @attr ref android.R.styleable#TextView_text 5529 * @attr ref android.R.styleable#TextView_bufferType 5530 */ 5531 public final void setText(@StringRes int resid, BufferType type) { 5532 setText(getContext().getResources().getText(resid), type); 5533 mTextFromResource = true; 5534 } 5535 5536 /** 5537 * Sets the text to be displayed when the text of the TextView is empty. 5538 * Null means to use the normal empty text. The hint does not currently 5539 * participate in determining the size of the view. 5540 * 5541 * @attr ref android.R.styleable#TextView_hint 5542 */ 5543 @android.view.RemotableViewMethod 5544 public final void setHint(CharSequence hint) { 5545 mHint = TextUtils.stringOrSpannedString(hint); 5546 5547 if (mLayout != null) { 5548 checkForRelayout(); 5549 } 5550 5551 if (mText.length() == 0) { 5552 invalidate(); 5553 } 5554 5555 // Invalidate display list if hint is currently used 5556 if (mEditor != null && mText.length() == 0 && mHint != null) { 5557 mEditor.invalidateTextDisplayList(); 5558 } 5559 } 5560 5561 /** 5562 * Sets the text to be displayed when the text of the TextView is empty, 5563 * from a resource. 5564 * 5565 * @attr ref android.R.styleable#TextView_hint 5566 */ 5567 @android.view.RemotableViewMethod 5568 public final void setHint(@StringRes int resid) { 5569 setHint(getContext().getResources().getText(resid)); 5570 } 5571 5572 /** 5573 * Returns the hint that is displayed when the text of the TextView 5574 * is empty. 5575 * 5576 * @attr ref android.R.styleable#TextView_hint 5577 */ 5578 @ViewDebug.CapturedViewProperty 5579 public CharSequence getHint() { 5580 return mHint; 5581 } 5582 5583 boolean isSingleLine() { 5584 return mSingleLine; 5585 } 5586 5587 private static boolean isMultilineInputType(int type) { 5588 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) 5589 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 5590 } 5591 5592 /** 5593 * Removes the suggestion spans. 5594 */ 5595 CharSequence removeSuggestionSpans(CharSequence text) { 5596 if (text instanceof Spanned) { 5597 Spannable spannable; 5598 if (text instanceof Spannable) { 5599 spannable = (Spannable) text; 5600 } else { 5601 spannable = mSpannableFactory.newSpannable(text); 5602 text = spannable; 5603 } 5604 5605 SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class); 5606 for (int i = 0; i < spans.length; i++) { 5607 spannable.removeSpan(spans[i]); 5608 } 5609 } 5610 return text; 5611 } 5612 5613 /** 5614 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 5615 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 5616 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 5617 * then a soft keyboard will not be displayed for this text view. 5618 * 5619 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 5620 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 5621 * type. 5622 * 5623 * @see #getInputType() 5624 * @see #setRawInputType(int) 5625 * @see android.text.InputType 5626 * @attr ref android.R.styleable#TextView_inputType 5627 */ 5628 public void setInputType(int type) { 5629 final boolean wasPassword = isPasswordInputType(getInputType()); 5630 final boolean wasVisiblePassword = isVisiblePasswordInputType(getInputType()); 5631 setInputType(type, false); 5632 final boolean isPassword = isPasswordInputType(type); 5633 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 5634 boolean forceUpdate = false; 5635 if (isPassword) { 5636 setTransformationMethod(PasswordTransformationMethod.getInstance()); 5637 setTypefaceFromAttrs(null/* fontTypeface */, null /* fontFamily */, MONOSPACE, 0); 5638 } else if (isVisiblePassword) { 5639 if (mTransformation == PasswordTransformationMethod.getInstance()) { 5640 forceUpdate = true; 5641 } 5642 setTypefaceFromAttrs(null/* fontTypeface */, null /* fontFamily */, MONOSPACE, 0); 5643 } else if (wasPassword || wasVisiblePassword) { 5644 // not in password mode, clean up typeface and transformation 5645 setTypefaceFromAttrs(null/* fontTypeface */, null /* fontFamily */, -1, -1); 5646 if (mTransformation == PasswordTransformationMethod.getInstance()) { 5647 forceUpdate = true; 5648 } 5649 } 5650 5651 boolean singleLine = !isMultilineInputType(type); 5652 5653 // We need to update the single line mode if it has changed or we 5654 // were previously in password mode. 5655 if (mSingleLine != singleLine || forceUpdate) { 5656 // Change single line mode, but only change the transformation if 5657 // we are not in password mode. 5658 applySingleLine(singleLine, !isPassword, true); 5659 } 5660 5661 if (!isSuggestionsEnabled()) { 5662 mText = removeSuggestionSpans(mText); 5663 } 5664 5665 InputMethodManager imm = InputMethodManager.peekInstance(); 5666 if (imm != null) imm.restartInput(this); 5667 } 5668 5669 /** 5670 * It would be better to rely on the input type for everything. A password inputType should have 5671 * a password transformation. We should hence use isPasswordInputType instead of this method. 5672 * 5673 * We should: 5674 * - Call setInputType in setKeyListener instead of changing the input type directly (which 5675 * would install the correct transformation). 5676 * - Refuse the installation of a non-password transformation in setTransformation if the input 5677 * type is password. 5678 * 5679 * However, this is like this for legacy reasons and we cannot break existing apps. This method 5680 * is useful since it matches what the user can see (obfuscated text or not). 5681 * 5682 * @return true if the current transformation method is of the password type. 5683 */ 5684 boolean hasPasswordTransformationMethod() { 5685 return mTransformation instanceof PasswordTransformationMethod; 5686 } 5687 5688 static boolean isPasswordInputType(int inputType) { 5689 final int variation = 5690 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 5691 return variation 5692 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 5693 || variation 5694 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 5695 || variation 5696 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 5697 } 5698 5699 private static boolean isVisiblePasswordInputType(int inputType) { 5700 final int variation = 5701 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 5702 return variation 5703 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 5704 } 5705 5706 /** 5707 * Directly change the content type integer of the text view, without 5708 * modifying any other state. 5709 * @see #setInputType(int) 5710 * @see android.text.InputType 5711 * @attr ref android.R.styleable#TextView_inputType 5712 */ 5713 public void setRawInputType(int type) { 5714 if (type == InputType.TYPE_NULL && mEditor == null) return; //TYPE_NULL is the default value 5715 createEditorIfNeeded(); 5716 mEditor.mInputType = type; 5717 } 5718 5719 /** 5720 * @return {@code null} if the key listener should use pre-O (locale-independent). Otherwise 5721 * a {@code Locale} object that can be used to customize key various listeners. 5722 * @see DateKeyListener#getInstance(Locale) 5723 * @see DateTimeKeyListener#getInstance(Locale) 5724 * @see DigitsKeyListener#getInstance(Locale) 5725 * @see TimeKeyListener#getInstance(Locale) 5726 */ 5727 @Nullable 5728 private Locale getCustomLocaleForKeyListenerOrNull() { 5729 if (!mUseInternationalizedInput) { 5730 // If the application does not target O, stick to the previous behavior. 5731 return null; 5732 } 5733 final LocaleList locales = getImeHintLocales(); 5734 if (locales == null) { 5735 // If the application does not explicitly specify IME hint locale, also stick to the 5736 // previous behavior. 5737 return null; 5738 } 5739 return locales.get(0); 5740 } 5741 5742 private void setInputType(int type, boolean direct) { 5743 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 5744 KeyListener input; 5745 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 5746 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 5747 TextKeyListener.Capitalize cap; 5748 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 5749 cap = TextKeyListener.Capitalize.CHARACTERS; 5750 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 5751 cap = TextKeyListener.Capitalize.WORDS; 5752 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 5753 cap = TextKeyListener.Capitalize.SENTENCES; 5754 } else { 5755 cap = TextKeyListener.Capitalize.NONE; 5756 } 5757 input = TextKeyListener.getInstance(autotext, cap); 5758 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 5759 final Locale locale = getCustomLocaleForKeyListenerOrNull(); 5760 input = DigitsKeyListener.getInstance( 5761 locale, 5762 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 5763 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 5764 if (locale != null) { 5765 // Override type, if necessary for i18n. 5766 int newType = input.getInputType(); 5767 final int newClass = newType & EditorInfo.TYPE_MASK_CLASS; 5768 if (newClass != EditorInfo.TYPE_CLASS_NUMBER) { 5769 // The class is different from the original class. So we need to override 5770 // 'type'. But we want to keep the password flag if it's there. 5771 if ((type & EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD) != 0) { 5772 newType |= EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 5773 } 5774 type = newType; 5775 } 5776 } 5777 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 5778 final Locale locale = getCustomLocaleForKeyListenerOrNull(); 5779 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 5780 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 5781 input = DateKeyListener.getInstance(locale); 5782 break; 5783 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 5784 input = TimeKeyListener.getInstance(locale); 5785 break; 5786 default: 5787 input = DateTimeKeyListener.getInstance(locale); 5788 break; 5789 } 5790 if (mUseInternationalizedInput) { 5791 type = input.getInputType(); // Override type, if necessary for i18n. 5792 } 5793 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 5794 input = DialerKeyListener.getInstance(); 5795 } else { 5796 input = TextKeyListener.getInstance(); 5797 } 5798 setRawInputType(type); 5799 mListenerChanged = false; 5800 if (direct) { 5801 createEditorIfNeeded(); 5802 mEditor.mKeyListener = input; 5803 } else { 5804 setKeyListenerOnly(input); 5805 } 5806 } 5807 5808 /** 5809 * Get the type of the editable content. 5810 * 5811 * @see #setInputType(int) 5812 * @see android.text.InputType 5813 */ 5814 public int getInputType() { 5815 return mEditor == null ? EditorInfo.TYPE_NULL : mEditor.mInputType; 5816 } 5817 5818 /** 5819 * Change the editor type integer associated with the text view, which 5820 * is reported to an Input Method Editor (IME) with {@link EditorInfo#imeOptions} 5821 * when it has focus. 5822 * @see #getImeOptions 5823 * @see android.view.inputmethod.EditorInfo 5824 * @attr ref android.R.styleable#TextView_imeOptions 5825 */ 5826 public void setImeOptions(int imeOptions) { 5827 createEditorIfNeeded(); 5828 mEditor.createInputContentTypeIfNeeded(); 5829 mEditor.mInputContentType.imeOptions = imeOptions; 5830 } 5831 5832 /** 5833 * Get the type of the Input Method Editor (IME). 5834 * @return the type of the IME 5835 * @see #setImeOptions(int) 5836 * @see android.view.inputmethod.EditorInfo 5837 */ 5838 public int getImeOptions() { 5839 return mEditor != null && mEditor.mInputContentType != null 5840 ? mEditor.mInputContentType.imeOptions : EditorInfo.IME_NULL; 5841 } 5842 5843 /** 5844 * Change the custom IME action associated with the text view, which 5845 * will be reported to an IME with {@link EditorInfo#actionLabel} 5846 * and {@link EditorInfo#actionId} when it has focus. 5847 * @see #getImeActionLabel 5848 * @see #getImeActionId 5849 * @see android.view.inputmethod.EditorInfo 5850 * @attr ref android.R.styleable#TextView_imeActionLabel 5851 * @attr ref android.R.styleable#TextView_imeActionId 5852 */ 5853 public void setImeActionLabel(CharSequence label, int actionId) { 5854 createEditorIfNeeded(); 5855 mEditor.createInputContentTypeIfNeeded(); 5856 mEditor.mInputContentType.imeActionLabel = label; 5857 mEditor.mInputContentType.imeActionId = actionId; 5858 } 5859 5860 /** 5861 * Get the IME action label previous set with {@link #setImeActionLabel}. 5862 * 5863 * @see #setImeActionLabel 5864 * @see android.view.inputmethod.EditorInfo 5865 */ 5866 public CharSequence getImeActionLabel() { 5867 return mEditor != null && mEditor.mInputContentType != null 5868 ? mEditor.mInputContentType.imeActionLabel : null; 5869 } 5870 5871 /** 5872 * Get the IME action ID previous set with {@link #setImeActionLabel}. 5873 * 5874 * @see #setImeActionLabel 5875 * @see android.view.inputmethod.EditorInfo 5876 */ 5877 public int getImeActionId() { 5878 return mEditor != null && mEditor.mInputContentType != null 5879 ? mEditor.mInputContentType.imeActionId : 0; 5880 } 5881 5882 /** 5883 * Set a special listener to be called when an action is performed 5884 * on the text view. This will be called when the enter key is pressed, 5885 * or when an action supplied to the IME is selected by the user. Setting 5886 * this means that the normal hard key event will not insert a newline 5887 * into the text view, even if it is multi-line; holding down the ALT 5888 * modifier will, however, allow the user to insert a newline character. 5889 */ 5890 public void setOnEditorActionListener(OnEditorActionListener l) { 5891 createEditorIfNeeded(); 5892 mEditor.createInputContentTypeIfNeeded(); 5893 mEditor.mInputContentType.onEditorActionListener = l; 5894 } 5895 5896 /** 5897 * Called when an attached input method calls 5898 * {@link InputConnection#performEditorAction(int) 5899 * InputConnection.performEditorAction()} 5900 * for this text view. The default implementation will call your action 5901 * listener supplied to {@link #setOnEditorActionListener}, or perform 5902 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 5903 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 5904 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 5905 * EditorInfo.IME_ACTION_DONE}. 5906 * 5907 * <p>For backwards compatibility, if no IME options have been set and the 5908 * text view would not normally advance focus on enter, then 5909 * the NEXT and DONE actions received here will be turned into an enter 5910 * key down/up pair to go through the normal key handling. 5911 * 5912 * @param actionCode The code of the action being performed. 5913 * 5914 * @see #setOnEditorActionListener 5915 */ 5916 public void onEditorAction(int actionCode) { 5917 final Editor.InputContentType ict = mEditor == null ? null : mEditor.mInputContentType; 5918 if (ict != null) { 5919 if (ict.onEditorActionListener != null) { 5920 if (ict.onEditorActionListener.onEditorAction(this, 5921 actionCode, null)) { 5922 return; 5923 } 5924 } 5925 5926 // This is the handling for some default action. 5927 // Note that for backwards compatibility we don't do this 5928 // default handling if explicit ime options have not been given, 5929 // instead turning this into the normal enter key codes that an 5930 // app may be expecting. 5931 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 5932 View v = focusSearch(FOCUS_FORWARD); 5933 if (v != null) { 5934 if (!v.requestFocus(FOCUS_FORWARD)) { 5935 throw new IllegalStateException("focus search returned a view " 5936 + "that wasn't able to take focus!"); 5937 } 5938 } 5939 return; 5940 5941 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 5942 View v = focusSearch(FOCUS_BACKWARD); 5943 if (v != null) { 5944 if (!v.requestFocus(FOCUS_BACKWARD)) { 5945 throw new IllegalStateException("focus search returned a view " 5946 + "that wasn't able to take focus!"); 5947 } 5948 } 5949 return; 5950 5951 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 5952 InputMethodManager imm = InputMethodManager.peekInstance(); 5953 if (imm != null && imm.isActive(this)) { 5954 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5955 } 5956 return; 5957 } 5958 } 5959 5960 ViewRootImpl viewRootImpl = getViewRootImpl(); 5961 if (viewRootImpl != null) { 5962 long eventTime = SystemClock.uptimeMillis(); 5963 viewRootImpl.dispatchKeyFromIme( 5964 new KeyEvent(eventTime, eventTime, 5965 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 5966 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 5967 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 5968 | KeyEvent.FLAG_EDITOR_ACTION)); 5969 viewRootImpl.dispatchKeyFromIme( 5970 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 5971 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 5972 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 5973 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 5974 | KeyEvent.FLAG_EDITOR_ACTION)); 5975 } 5976 } 5977 5978 /** 5979 * Set the private content type of the text, which is the 5980 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 5981 * field that will be filled in when creating an input connection. 5982 * 5983 * @see #getPrivateImeOptions() 5984 * @see EditorInfo#privateImeOptions 5985 * @attr ref android.R.styleable#TextView_privateImeOptions 5986 */ 5987 public void setPrivateImeOptions(String type) { 5988 createEditorIfNeeded(); 5989 mEditor.createInputContentTypeIfNeeded(); 5990 mEditor.mInputContentType.privateImeOptions = type; 5991 } 5992 5993 /** 5994 * Get the private type of the content. 5995 * 5996 * @see #setPrivateImeOptions(String) 5997 * @see EditorInfo#privateImeOptions 5998 */ 5999 public String getPrivateImeOptions() { 6000 return mEditor != null && mEditor.mInputContentType != null 6001 ? mEditor.mInputContentType.privateImeOptions : null; 6002 } 6003 6004 /** 6005 * Set the extra input data of the text, which is the 6006 * {@link EditorInfo#extras TextBoxAttribute.extras} 6007 * Bundle that will be filled in when creating an input connection. The 6008 * given integer is the resource identifier of an XML resource holding an 6009 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 6010 * 6011 * @see #getInputExtras(boolean) 6012 * @see EditorInfo#extras 6013 * @attr ref android.R.styleable#TextView_editorExtras 6014 */ 6015 public void setInputExtras(@XmlRes int xmlResId) throws XmlPullParserException, IOException { 6016 createEditorIfNeeded(); 6017 XmlResourceParser parser = getResources().getXml(xmlResId); 6018 mEditor.createInputContentTypeIfNeeded(); 6019 mEditor.mInputContentType.extras = new Bundle(); 6020 getResources().parseBundleExtras(parser, mEditor.mInputContentType.extras); 6021 } 6022 6023 /** 6024 * Retrieve the input extras currently associated with the text view, which 6025 * can be viewed as well as modified. 6026 * 6027 * @param create If true, the extras will be created if they don't already 6028 * exist. Otherwise, null will be returned if none have been created. 6029 * @see #setInputExtras(int) 6030 * @see EditorInfo#extras 6031 * @attr ref android.R.styleable#TextView_editorExtras 6032 */ 6033 public Bundle getInputExtras(boolean create) { 6034 if (mEditor == null && !create) return null; 6035 createEditorIfNeeded(); 6036 if (mEditor.mInputContentType == null) { 6037 if (!create) return null; 6038 mEditor.createInputContentTypeIfNeeded(); 6039 } 6040 if (mEditor.mInputContentType.extras == null) { 6041 if (!create) return null; 6042 mEditor.mInputContentType.extras = new Bundle(); 6043 } 6044 return mEditor.mInputContentType.extras; 6045 } 6046 6047 /** 6048 * Change "hint" locales associated with the text view, which will be reported to an IME with 6049 * {@link EditorInfo#hintLocales} when it has focus. 6050 * 6051 * Starting with Android O, this also causes internationalized listeners to be created (or 6052 * change locale) based on the first locale in the input locale list. 6053 * 6054 * <p><strong>Note:</strong> If you want new "hint" to take effect immediately you need to 6055 * call {@link InputMethodManager#restartInput(View)}.</p> 6056 * @param hintLocales List of the languages that the user is supposed to switch to no matter 6057 * what input method subtype is currently used. Set {@code null} to clear the current "hint". 6058 * @see #getImeHintLocales() 6059 * @see android.view.inputmethod.EditorInfo#hintLocales 6060 */ 6061 public void setImeHintLocales(@Nullable LocaleList hintLocales) { 6062 createEditorIfNeeded(); 6063 mEditor.createInputContentTypeIfNeeded(); 6064 mEditor.mInputContentType.imeHintLocales = hintLocales; 6065 if (mUseInternationalizedInput) { 6066 changeListenerLocaleTo(hintLocales == null ? null : hintLocales.get(0)); 6067 } 6068 } 6069 6070 /** 6071 * @return The current languages list "hint". {@code null} when no "hint" is available. 6072 * @see #setImeHintLocales(LocaleList) 6073 * @see android.view.inputmethod.EditorInfo#hintLocales 6074 */ 6075 @Nullable 6076 public LocaleList getImeHintLocales() { 6077 if (mEditor == null) { 6078 return null; 6079 } 6080 if (mEditor.mInputContentType == null) { 6081 return null; 6082 } 6083 return mEditor.mInputContentType.imeHintLocales; 6084 } 6085 6086 /** 6087 * Returns the error message that was set to be displayed with 6088 * {@link #setError}, or <code>null</code> if no error was set 6089 * or if it the error was cleared by the widget after user input. 6090 */ 6091 public CharSequence getError() { 6092 return mEditor == null ? null : mEditor.mError; 6093 } 6094 6095 /** 6096 * Sets the right-hand compound drawable of the TextView to the "error" 6097 * icon and sets an error message that will be displayed in a popup when 6098 * the TextView has focus. The icon and error message will be reset to 6099 * null when any key events cause changes to the TextView's text. If the 6100 * <code>error</code> is <code>null</code>, the error message and icon 6101 * will be cleared. 6102 */ 6103 @android.view.RemotableViewMethod 6104 public void setError(CharSequence error) { 6105 if (error == null) { 6106 setError(null, null); 6107 } else { 6108 Drawable dr = getContext().getDrawable( 6109 com.android.internal.R.drawable.indicator_input_error); 6110 6111 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 6112 setError(error, dr); 6113 } 6114 } 6115 6116 /** 6117 * Sets the right-hand compound drawable of the TextView to the specified 6118 * icon and sets an error message that will be displayed in a popup when 6119 * the TextView has focus. The icon and error message will be reset to 6120 * null when any key events cause changes to the TextView's text. The 6121 * drawable must already have had {@link Drawable#setBounds} set on it. 6122 * If the <code>error</code> is <code>null</code>, the error message will 6123 * be cleared (and you should provide a <code>null</code> icon as well). 6124 */ 6125 public void setError(CharSequence error, Drawable icon) { 6126 createEditorIfNeeded(); 6127 mEditor.setError(error, icon); 6128 notifyViewAccessibilityStateChangedIfNeeded( 6129 AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED); 6130 } 6131 6132 @Override 6133 protected boolean setFrame(int l, int t, int r, int b) { 6134 boolean result = super.setFrame(l, t, r, b); 6135 6136 if (mEditor != null) mEditor.setFrame(); 6137 6138 restartMarqueeIfNeeded(); 6139 6140 return result; 6141 } 6142 6143 private void restartMarqueeIfNeeded() { 6144 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6145 mRestartMarquee = false; 6146 startMarquee(); 6147 } 6148 } 6149 6150 /** 6151 * Sets the list of input filters that will be used if the buffer is 6152 * Editable. Has no effect otherwise. 6153 * 6154 * @attr ref android.R.styleable#TextView_maxLength 6155 */ 6156 public void setFilters(InputFilter[] filters) { 6157 if (filters == null) { 6158 throw new IllegalArgumentException(); 6159 } 6160 6161 mFilters = filters; 6162 6163 if (mText instanceof Editable) { 6164 setFilters((Editable) mText, filters); 6165 } 6166 } 6167 6168 /** 6169 * Sets the list of input filters on the specified Editable, 6170 * and includes mInput in the list if it is an InputFilter. 6171 */ 6172 private void setFilters(Editable e, InputFilter[] filters) { 6173 if (mEditor != null) { 6174 final boolean undoFilter = mEditor.mUndoInputFilter != null; 6175 final boolean keyFilter = mEditor.mKeyListener instanceof InputFilter; 6176 int num = 0; 6177 if (undoFilter) num++; 6178 if (keyFilter) num++; 6179 if (num > 0) { 6180 InputFilter[] nf = new InputFilter[filters.length + num]; 6181 6182 System.arraycopy(filters, 0, nf, 0, filters.length); 6183 num = 0; 6184 if (undoFilter) { 6185 nf[filters.length] = mEditor.mUndoInputFilter; 6186 num++; 6187 } 6188 if (keyFilter) { 6189 nf[filters.length + num] = (InputFilter) mEditor.mKeyListener; 6190 } 6191 6192 e.setFilters(nf); 6193 return; 6194 } 6195 } 6196 e.setFilters(filters); 6197 } 6198 6199 /** 6200 * Returns the current list of input filters. 6201 * 6202 * @attr ref android.R.styleable#TextView_maxLength 6203 */ 6204 public InputFilter[] getFilters() { 6205 return mFilters; 6206 } 6207 6208 ///////////////////////////////////////////////////////////////////////// 6209 6210 private int getBoxHeight(Layout l) { 6211 Insets opticalInsets = isLayoutModeOptical(mParent) ? getOpticalInsets() : Insets.NONE; 6212 int padding = (l == mHintLayout) 6213 ? getCompoundPaddingTop() + getCompoundPaddingBottom() 6214 : getExtendedPaddingTop() + getExtendedPaddingBottom(); 6215 return getMeasuredHeight() - padding + opticalInsets.top + opticalInsets.bottom; 6216 } 6217 6218 int getVerticalOffset(boolean forceNormal) { 6219 int voffset = 0; 6220 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 6221 6222 Layout l = mLayout; 6223 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 6224 l = mHintLayout; 6225 } 6226 6227 if (gravity != Gravity.TOP) { 6228 int boxht = getBoxHeight(l); 6229 int textht = l.getHeight(); 6230 6231 if (textht < boxht) { 6232 if (gravity == Gravity.BOTTOM) { 6233 voffset = boxht - textht; 6234 } else { // (gravity == Gravity.CENTER_VERTICAL) 6235 voffset = (boxht - textht) >> 1; 6236 } 6237 } 6238 } 6239 return voffset; 6240 } 6241 6242 private int getBottomVerticalOffset(boolean forceNormal) { 6243 int voffset = 0; 6244 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 6245 6246 Layout l = mLayout; 6247 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 6248 l = mHintLayout; 6249 } 6250 6251 if (gravity != Gravity.BOTTOM) { 6252 int boxht = getBoxHeight(l); 6253 int textht = l.getHeight(); 6254 6255 if (textht < boxht) { 6256 if (gravity == Gravity.TOP) { 6257 voffset = boxht - textht; 6258 } else { // (gravity == Gravity.CENTER_VERTICAL) 6259 voffset = (boxht - textht) >> 1; 6260 } 6261 } 6262 } 6263 return voffset; 6264 } 6265 6266 void invalidateCursorPath() { 6267 if (mHighlightPathBogus) { 6268 invalidateCursor(); 6269 } else { 6270 final int horizontalPadding = getCompoundPaddingLeft(); 6271 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 6272 6273 if (mEditor.mCursorDrawable == null) { 6274 synchronized (TEMP_RECTF) { 6275 /* 6276 * The reason for this concern about the thickness of the 6277 * cursor and doing the floor/ceil on the coordinates is that 6278 * some EditTexts (notably textfields in the Browser) have 6279 * anti-aliased text where not all the characters are 6280 * necessarily at integer-multiple locations. This should 6281 * make sure the entire cursor gets invalidated instead of 6282 * sometimes missing half a pixel. 6283 */ 6284 float thick = (float) Math.ceil(mTextPaint.getStrokeWidth()); 6285 if (thick < 1.0f) { 6286 thick = 1.0f; 6287 } 6288 6289 thick /= 2.0f; 6290 6291 // mHighlightPath is guaranteed to be non null at that point. 6292 mHighlightPath.computeBounds(TEMP_RECTF, false); 6293 6294 invalidate((int) Math.floor(horizontalPadding + TEMP_RECTF.left - thick), 6295 (int) Math.floor(verticalPadding + TEMP_RECTF.top - thick), 6296 (int) Math.ceil(horizontalPadding + TEMP_RECTF.right + thick), 6297 (int) Math.ceil(verticalPadding + TEMP_RECTF.bottom + thick)); 6298 } 6299 } else { 6300 final Rect bounds = mEditor.mCursorDrawable.getBounds(); 6301 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 6302 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 6303 } 6304 } 6305 } 6306 6307 void invalidateCursor() { 6308 int where = getSelectionEnd(); 6309 6310 invalidateCursor(where, where, where); 6311 } 6312 6313 private void invalidateCursor(int a, int b, int c) { 6314 if (a >= 0 || b >= 0 || c >= 0) { 6315 int start = Math.min(Math.min(a, b), c); 6316 int end = Math.max(Math.max(a, b), c); 6317 invalidateRegion(start, end, true /* Also invalidates blinking cursor */); 6318 } 6319 } 6320 6321 /** 6322 * Invalidates the region of text enclosed between the start and end text offsets. 6323 */ 6324 void invalidateRegion(int start, int end, boolean invalidateCursor) { 6325 if (mLayout == null) { 6326 invalidate(); 6327 } else { 6328 int lineStart = mLayout.getLineForOffset(start); 6329 int top = mLayout.getLineTop(lineStart); 6330 6331 // This is ridiculous, but the descent from the line above 6332 // can hang down into the line we really want to redraw, 6333 // so we have to invalidate part of the line above to make 6334 // sure everything that needs to be redrawn really is. 6335 // (But not the whole line above, because that would cause 6336 // the same problem with the descenders on the line above it!) 6337 if (lineStart > 0) { 6338 top -= mLayout.getLineDescent(lineStart - 1); 6339 } 6340 6341 int lineEnd; 6342 6343 if (start == end) { 6344 lineEnd = lineStart; 6345 } else { 6346 lineEnd = mLayout.getLineForOffset(end); 6347 } 6348 6349 int bottom = mLayout.getLineBottom(lineEnd); 6350 6351 // mEditor can be null in case selection is set programmatically. 6352 if (invalidateCursor && mEditor != null && mEditor.mCursorDrawable != null) { 6353 final Rect bounds = mEditor.mCursorDrawable.getBounds(); 6354 top = Math.min(top, bounds.top); 6355 bottom = Math.max(bottom, bounds.bottom); 6356 } 6357 6358 final int compoundPaddingLeft = getCompoundPaddingLeft(); 6359 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 6360 6361 int left, right; 6362 if (lineStart == lineEnd && !invalidateCursor) { 6363 left = (int) mLayout.getPrimaryHorizontal(start); 6364 right = (int) (mLayout.getPrimaryHorizontal(end) + 1.0); 6365 left += compoundPaddingLeft; 6366 right += compoundPaddingLeft; 6367 } else { 6368 // Rectangle bounding box when the region spans several lines 6369 left = compoundPaddingLeft; 6370 right = getWidth() - getCompoundPaddingRight(); 6371 } 6372 6373 invalidate(mScrollX + left, verticalPadding + top, 6374 mScrollX + right, verticalPadding + bottom); 6375 } 6376 } 6377 6378 private void registerForPreDraw() { 6379 if (!mPreDrawRegistered) { 6380 getViewTreeObserver().addOnPreDrawListener(this); 6381 mPreDrawRegistered = true; 6382 } 6383 } 6384 6385 private void unregisterForPreDraw() { 6386 getViewTreeObserver().removeOnPreDrawListener(this); 6387 mPreDrawRegistered = false; 6388 mPreDrawListenerDetached = false; 6389 } 6390 6391 /** 6392 * {@inheritDoc} 6393 */ 6394 @Override 6395 public boolean onPreDraw() { 6396 if (mLayout == null) { 6397 assumeLayout(); 6398 } 6399 6400 if (mMovement != null) { 6401 /* This code also provides auto-scrolling when a cursor is moved using a 6402 * CursorController (insertion point or selection limits). 6403 * For selection, ensure start or end is visible depending on controller's state. 6404 */ 6405 int curs = getSelectionEnd(); 6406 // Do not create the controller if it is not already created. 6407 if (mEditor != null && mEditor.mSelectionModifierCursorController != null 6408 && mEditor.mSelectionModifierCursorController.isSelectionStartDragged()) { 6409 curs = getSelectionStart(); 6410 } 6411 6412 /* 6413 * TODO: This should really only keep the end in view if 6414 * it already was before the text changed. I'm not sure 6415 * of a good way to tell from here if it was. 6416 */ 6417 if (curs < 0 && (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6418 curs = mText.length(); 6419 } 6420 6421 if (curs >= 0) { 6422 bringPointIntoView(curs); 6423 } 6424 } else { 6425 bringTextIntoView(); 6426 } 6427 6428 // This has to be checked here since: 6429 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 6430 // a screen rotation) since layout is not yet initialized at that point. 6431 if (mEditor != null && mEditor.mCreatedWithASelection) { 6432 mEditor.refreshTextActionMode(); 6433 mEditor.mCreatedWithASelection = false; 6434 } 6435 6436 unregisterForPreDraw(); 6437 6438 return true; 6439 } 6440 6441 @Override 6442 protected void onAttachedToWindow() { 6443 super.onAttachedToWindow(); 6444 6445 if (mEditor != null) mEditor.onAttachedToWindow(); 6446 6447 if (mPreDrawListenerDetached) { 6448 getViewTreeObserver().addOnPreDrawListener(this); 6449 mPreDrawListenerDetached = false; 6450 } 6451 } 6452 6453 /** @hide */ 6454 @Override 6455 protected void onDetachedFromWindowInternal() { 6456 if (mPreDrawRegistered) { 6457 getViewTreeObserver().removeOnPreDrawListener(this); 6458 mPreDrawListenerDetached = true; 6459 } 6460 6461 resetResolvedDrawables(); 6462 6463 if (mEditor != null) mEditor.onDetachedFromWindow(); 6464 6465 super.onDetachedFromWindowInternal(); 6466 } 6467 6468 @Override 6469 public void onScreenStateChanged(int screenState) { 6470 super.onScreenStateChanged(screenState); 6471 if (mEditor != null) mEditor.onScreenStateChanged(screenState); 6472 } 6473 6474 @Override 6475 protected boolean isPaddingOffsetRequired() { 6476 return mShadowRadius != 0 || mDrawables != null; 6477 } 6478 6479 @Override 6480 protected int getLeftPaddingOffset() { 6481 return getCompoundPaddingLeft() - mPaddingLeft 6482 + (int) Math.min(0, mShadowDx - mShadowRadius); 6483 } 6484 6485 @Override 6486 protected int getTopPaddingOffset() { 6487 return (int) Math.min(0, mShadowDy - mShadowRadius); 6488 } 6489 6490 @Override 6491 protected int getBottomPaddingOffset() { 6492 return (int) Math.max(0, mShadowDy + mShadowRadius); 6493 } 6494 6495 @Override 6496 protected int getRightPaddingOffset() { 6497 return -(getCompoundPaddingRight() - mPaddingRight) 6498 + (int) Math.max(0, mShadowDx + mShadowRadius); 6499 } 6500 6501 @Override 6502 protected boolean verifyDrawable(@NonNull Drawable who) { 6503 final boolean verified = super.verifyDrawable(who); 6504 if (!verified && mDrawables != null) { 6505 for (Drawable dr : mDrawables.mShowing) { 6506 if (who == dr) { 6507 return true; 6508 } 6509 } 6510 } 6511 return verified; 6512 } 6513 6514 @Override 6515 public void jumpDrawablesToCurrentState() { 6516 super.jumpDrawablesToCurrentState(); 6517 if (mDrawables != null) { 6518 for (Drawable dr : mDrawables.mShowing) { 6519 if (dr != null) { 6520 dr.jumpToCurrentState(); 6521 } 6522 } 6523 } 6524 } 6525 6526 @Override 6527 public void invalidateDrawable(@NonNull Drawable drawable) { 6528 boolean handled = false; 6529 6530 if (verifyDrawable(drawable)) { 6531 final Rect dirty = drawable.getBounds(); 6532 int scrollX = mScrollX; 6533 int scrollY = mScrollY; 6534 6535 // IMPORTANT: The coordinates below are based on the coordinates computed 6536 // for each compound drawable in onDraw(). Make sure to update each section 6537 // accordingly. 6538 final TextView.Drawables drawables = mDrawables; 6539 if (drawables != null) { 6540 if (drawable == drawables.mShowing[Drawables.LEFT]) { 6541 final int compoundPaddingTop = getCompoundPaddingTop(); 6542 final int compoundPaddingBottom = getCompoundPaddingBottom(); 6543 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 6544 6545 scrollX += mPaddingLeft; 6546 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 6547 handled = true; 6548 } else if (drawable == drawables.mShowing[Drawables.RIGHT]) { 6549 final int compoundPaddingTop = getCompoundPaddingTop(); 6550 final int compoundPaddingBottom = getCompoundPaddingBottom(); 6551 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 6552 6553 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 6554 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 6555 handled = true; 6556 } else if (drawable == drawables.mShowing[Drawables.TOP]) { 6557 final int compoundPaddingLeft = getCompoundPaddingLeft(); 6558 final int compoundPaddingRight = getCompoundPaddingRight(); 6559 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 6560 6561 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 6562 scrollY += mPaddingTop; 6563 handled = true; 6564 } else if (drawable == drawables.mShowing[Drawables.BOTTOM]) { 6565 final int compoundPaddingLeft = getCompoundPaddingLeft(); 6566 final int compoundPaddingRight = getCompoundPaddingRight(); 6567 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 6568 6569 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 6570 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 6571 handled = true; 6572 } 6573 } 6574 6575 if (handled) { 6576 invalidate(dirty.left + scrollX, dirty.top + scrollY, 6577 dirty.right + scrollX, dirty.bottom + scrollY); 6578 } 6579 } 6580 6581 if (!handled) { 6582 super.invalidateDrawable(drawable); 6583 } 6584 } 6585 6586 @Override 6587 public boolean hasOverlappingRendering() { 6588 // horizontal fading edge causes SaveLayerAlpha, which doesn't support alpha modulation 6589 return ((getBackground() != null && getBackground().getCurrent() != null) 6590 || mText instanceof Spannable || hasSelection() 6591 || isHorizontalFadingEdgeEnabled()); 6592 } 6593 6594 /** 6595 * 6596 * Returns the state of the {@code textIsSelectable} flag (See 6597 * {@link #setTextIsSelectable setTextIsSelectable()}). Although you have to set this flag 6598 * to allow users to select and copy text in a non-editable TextView, the content of an 6599 * {@link EditText} can always be selected, independently of the value of this flag. 6600 * <p> 6601 * 6602 * @return True if the text displayed in this TextView can be selected by the user. 6603 * 6604 * @attr ref android.R.styleable#TextView_textIsSelectable 6605 */ 6606 public boolean isTextSelectable() { 6607 return mEditor == null ? false : mEditor.mTextIsSelectable; 6608 } 6609 6610 /** 6611 * Sets whether the content of this view is selectable by the user. The default is 6612 * {@code false}, meaning that the content is not selectable. 6613 * <p> 6614 * When you use a TextView to display a useful piece of information to the user (such as a 6615 * contact's address), make it selectable, so that the user can select and copy its 6616 * content. You can also use set the XML attribute 6617 * {@link android.R.styleable#TextView_textIsSelectable} to "true". 6618 * <p> 6619 * When you call this method to set the value of {@code textIsSelectable}, it sets 6620 * the flags {@code focusable}, {@code focusableInTouchMode}, {@code clickable}, 6621 * and {@code longClickable} to the same value. These flags correspond to the attributes 6622 * {@link android.R.styleable#View_focusable android:focusable}, 6623 * {@link android.R.styleable#View_focusableInTouchMode android:focusableInTouchMode}, 6624 * {@link android.R.styleable#View_clickable android:clickable}, and 6625 * {@link android.R.styleable#View_longClickable android:longClickable}. To restore any of these 6626 * flags to a state you had set previously, call one or more of the following methods: 6627 * {@link #setFocusable(boolean) setFocusable()}, 6628 * {@link #setFocusableInTouchMode(boolean) setFocusableInTouchMode()}, 6629 * {@link #setClickable(boolean) setClickable()} or 6630 * {@link #setLongClickable(boolean) setLongClickable()}. 6631 * 6632 * @param selectable Whether the content of this TextView should be selectable. 6633 */ 6634 public void setTextIsSelectable(boolean selectable) { 6635 if (!selectable && mEditor == null) return; // false is default value with no edit data 6636 6637 createEditorIfNeeded(); 6638 if (mEditor.mTextIsSelectable == selectable) return; 6639 6640 mEditor.mTextIsSelectable = selectable; 6641 setFocusableInTouchMode(selectable); 6642 setFocusable(FOCUSABLE_AUTO); 6643 setClickable(selectable); 6644 setLongClickable(selectable); 6645 6646 // mInputType should already be EditorInfo.TYPE_NULL and mInput should be null 6647 6648 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 6649 setText(mText, selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 6650 6651 // Called by setText above, but safer in case of future code changes 6652 mEditor.prepareCursorControllers(); 6653 } 6654 6655 @Override 6656 protected int[] onCreateDrawableState(int extraSpace) { 6657 final int[] drawableState; 6658 6659 if (mSingleLine) { 6660 drawableState = super.onCreateDrawableState(extraSpace); 6661 } else { 6662 drawableState = super.onCreateDrawableState(extraSpace + 1); 6663 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 6664 } 6665 6666 if (isTextSelectable()) { 6667 // Disable pressed state, which was introduced when TextView was made clickable. 6668 // Prevents text color change. 6669 // setClickable(false) would have a similar effect, but it also disables focus changes 6670 // and long press actions, which are both needed by text selection. 6671 final int length = drawableState.length; 6672 for (int i = 0; i < length; i++) { 6673 if (drawableState[i] == R.attr.state_pressed) { 6674 final int[] nonPressedState = new int[length - 1]; 6675 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 6676 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 6677 return nonPressedState; 6678 } 6679 } 6680 } 6681 6682 return drawableState; 6683 } 6684 6685 private Path getUpdatedHighlightPath() { 6686 Path highlight = null; 6687 Paint highlightPaint = mHighlightPaint; 6688 6689 final int selStart = getSelectionStart(); 6690 final int selEnd = getSelectionEnd(); 6691 if (mMovement != null && (isFocused() || isPressed()) && selStart >= 0) { 6692 if (selStart == selEnd) { 6693 if (mEditor != null && mEditor.isCursorVisible() 6694 && (SystemClock.uptimeMillis() - mEditor.mShowCursor) 6695 % (2 * Editor.BLINK) < Editor.BLINK) { 6696 if (mHighlightPathBogus) { 6697 if (mHighlightPath == null) mHighlightPath = new Path(); 6698 mHighlightPath.reset(); 6699 mLayout.getCursorPath(selStart, mHighlightPath, mText); 6700 mEditor.updateCursorPosition(); 6701 mHighlightPathBogus = false; 6702 } 6703 6704 // XXX should pass to skin instead of drawing directly 6705 highlightPaint.setColor(mCurTextColor); 6706 highlightPaint.setStyle(Paint.Style.STROKE); 6707 highlight = mHighlightPath; 6708 } 6709 } else { 6710 if (mHighlightPathBogus) { 6711 if (mHighlightPath == null) mHighlightPath = new Path(); 6712 mHighlightPath.reset(); 6713 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 6714 mHighlightPathBogus = false; 6715 } 6716 6717 // XXX should pass to skin instead of drawing directly 6718 highlightPaint.setColor(mHighlightColor); 6719 highlightPaint.setStyle(Paint.Style.FILL); 6720 6721 highlight = mHighlightPath; 6722 } 6723 } 6724 return highlight; 6725 } 6726 6727 /** 6728 * @hide 6729 */ 6730 public int getHorizontalOffsetForDrawables() { 6731 return 0; 6732 } 6733 6734 @Override 6735 protected void onDraw(Canvas canvas) { 6736 restartMarqueeIfNeeded(); 6737 6738 // Draw the background for this view 6739 super.onDraw(canvas); 6740 6741 final int compoundPaddingLeft = getCompoundPaddingLeft(); 6742 final int compoundPaddingTop = getCompoundPaddingTop(); 6743 final int compoundPaddingRight = getCompoundPaddingRight(); 6744 final int compoundPaddingBottom = getCompoundPaddingBottom(); 6745 final int scrollX = mScrollX; 6746 final int scrollY = mScrollY; 6747 final int right = mRight; 6748 final int left = mLeft; 6749 final int bottom = mBottom; 6750 final int top = mTop; 6751 final boolean isLayoutRtl = isLayoutRtl(); 6752 final int offset = getHorizontalOffsetForDrawables(); 6753 final int leftOffset = isLayoutRtl ? 0 : offset; 6754 final int rightOffset = isLayoutRtl ? offset : 0; 6755 6756 final Drawables dr = mDrawables; 6757 if (dr != null) { 6758 /* 6759 * Compound, not extended, because the icon is not clipped 6760 * if the text height is smaller. 6761 */ 6762 6763 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 6764 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 6765 6766 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 6767 // Make sure to update invalidateDrawable() when changing this code. 6768 if (dr.mShowing[Drawables.LEFT] != null) { 6769 canvas.save(); 6770 canvas.translate(scrollX + mPaddingLeft + leftOffset, 6771 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightLeft) / 2); 6772 dr.mShowing[Drawables.LEFT].draw(canvas); 6773 canvas.restore(); 6774 } 6775 6776 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 6777 // Make sure to update invalidateDrawable() when changing this code. 6778 if (dr.mShowing[Drawables.RIGHT] != null) { 6779 canvas.save(); 6780 canvas.translate(scrollX + right - left - mPaddingRight 6781 - dr.mDrawableSizeRight - rightOffset, 6782 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 6783 dr.mShowing[Drawables.RIGHT].draw(canvas); 6784 canvas.restore(); 6785 } 6786 6787 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 6788 // Make sure to update invalidateDrawable() when changing this code. 6789 if (dr.mShowing[Drawables.TOP] != null) { 6790 canvas.save(); 6791 canvas.translate(scrollX + compoundPaddingLeft 6792 + (hspace - dr.mDrawableWidthTop) / 2, scrollY + mPaddingTop); 6793 dr.mShowing[Drawables.TOP].draw(canvas); 6794 canvas.restore(); 6795 } 6796 6797 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 6798 // Make sure to update invalidateDrawable() when changing this code. 6799 if (dr.mShowing[Drawables.BOTTOM] != null) { 6800 canvas.save(); 6801 canvas.translate(scrollX + compoundPaddingLeft 6802 + (hspace - dr.mDrawableWidthBottom) / 2, 6803 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 6804 dr.mShowing[Drawables.BOTTOM].draw(canvas); 6805 canvas.restore(); 6806 } 6807 } 6808 6809 int color = mCurTextColor; 6810 6811 if (mLayout == null) { 6812 assumeLayout(); 6813 } 6814 6815 Layout layout = mLayout; 6816 6817 if (mHint != null && mText.length() == 0) { 6818 if (mHintTextColor != null) { 6819 color = mCurHintTextColor; 6820 } 6821 6822 layout = mHintLayout; 6823 } 6824 6825 mTextPaint.setColor(color); 6826 mTextPaint.drawableState = getDrawableState(); 6827 6828 canvas.save(); 6829 /* Would be faster if we didn't have to do this. Can we chop the 6830 (displayable) text so that we don't need to do this ever? 6831 */ 6832 6833 int extendedPaddingTop = getExtendedPaddingTop(); 6834 int extendedPaddingBottom = getExtendedPaddingBottom(); 6835 6836 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 6837 final int maxScrollY = mLayout.getHeight() - vspace; 6838 6839 float clipLeft = compoundPaddingLeft + scrollX; 6840 float clipTop = (scrollY == 0) ? 0 : extendedPaddingTop + scrollY; 6841 float clipRight = right - left - getCompoundPaddingRight() + scrollX; 6842 float clipBottom = bottom - top + scrollY 6843 - ((scrollY == maxScrollY) ? 0 : extendedPaddingBottom); 6844 6845 if (mShadowRadius != 0) { 6846 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 6847 clipRight += Math.max(0, mShadowDx + mShadowRadius); 6848 6849 clipTop += Math.min(0, mShadowDy - mShadowRadius); 6850 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 6851 } 6852 6853 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 6854 6855 int voffsetText = 0; 6856 int voffsetCursor = 0; 6857 6858 // translate in by our padding 6859 /* shortcircuit calling getVerticaOffset() */ 6860 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6861 voffsetText = getVerticalOffset(false); 6862 voffsetCursor = getVerticalOffset(true); 6863 } 6864 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 6865 6866 final int layoutDirection = getLayoutDirection(); 6867 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 6868 if (isMarqueeFadeEnabled()) { 6869 if (!mSingleLine && getLineCount() == 1 && canMarquee() 6870 && (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 6871 final int width = mRight - mLeft; 6872 final int padding = getCompoundPaddingLeft() + getCompoundPaddingRight(); 6873 final float dx = mLayout.getLineRight(0) - (width - padding); 6874 canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f); 6875 } 6876 6877 if (mMarquee != null && mMarquee.isRunning()) { 6878 final float dx = -mMarquee.getScroll(); 6879 canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f); 6880 } 6881 } 6882 6883 final int cursorOffsetVertical = voffsetCursor - voffsetText; 6884 6885 Path highlight = getUpdatedHighlightPath(); 6886 if (mEditor != null) { 6887 mEditor.onDraw(canvas, layout, highlight, mHighlightPaint, cursorOffsetVertical); 6888 } else { 6889 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 6890 } 6891 6892 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 6893 final float dx = mMarquee.getGhostOffset(); 6894 canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f); 6895 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 6896 } 6897 6898 canvas.restore(); 6899 } 6900 6901 @Override 6902 public void getFocusedRect(Rect r) { 6903 if (mLayout == null) { 6904 super.getFocusedRect(r); 6905 return; 6906 } 6907 6908 int selEnd = getSelectionEnd(); 6909 if (selEnd < 0) { 6910 super.getFocusedRect(r); 6911 return; 6912 } 6913 6914 int selStart = getSelectionStart(); 6915 if (selStart < 0 || selStart >= selEnd) { 6916 int line = mLayout.getLineForOffset(selEnd); 6917 r.top = mLayout.getLineTop(line); 6918 r.bottom = mLayout.getLineBottom(line); 6919 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 6920 r.right = r.left + 4; 6921 } else { 6922 int lineStart = mLayout.getLineForOffset(selStart); 6923 int lineEnd = mLayout.getLineForOffset(selEnd); 6924 r.top = mLayout.getLineTop(lineStart); 6925 r.bottom = mLayout.getLineBottom(lineEnd); 6926 if (lineStart == lineEnd) { 6927 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 6928 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 6929 } else { 6930 // Selection extends across multiple lines -- make the focused 6931 // rect cover the entire width. 6932 if (mHighlightPathBogus) { 6933 if (mHighlightPath == null) mHighlightPath = new Path(); 6934 mHighlightPath.reset(); 6935 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 6936 mHighlightPathBogus = false; 6937 } 6938 synchronized (TEMP_RECTF) { 6939 mHighlightPath.computeBounds(TEMP_RECTF, true); 6940 r.left = (int) TEMP_RECTF.left - 1; 6941 r.right = (int) TEMP_RECTF.right + 1; 6942 } 6943 } 6944 } 6945 6946 // Adjust for padding and gravity. 6947 int paddingLeft = getCompoundPaddingLeft(); 6948 int paddingTop = getExtendedPaddingTop(); 6949 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6950 paddingTop += getVerticalOffset(false); 6951 } 6952 r.offset(paddingLeft, paddingTop); 6953 int paddingBottom = getExtendedPaddingBottom(); 6954 r.bottom += paddingBottom; 6955 } 6956 6957 /** 6958 * Return the number of lines of text, or 0 if the internal Layout has not 6959 * been built. 6960 */ 6961 public int getLineCount() { 6962 return mLayout != null ? mLayout.getLineCount() : 0; 6963 } 6964 6965 /** 6966 * Return the baseline for the specified line (0...getLineCount() - 1) 6967 * If bounds is not null, return the top, left, right, bottom extents 6968 * of the specified line in it. If the internal Layout has not been built, 6969 * return 0 and set bounds to (0, 0, 0, 0) 6970 * @param line which line to examine (0..getLineCount() - 1) 6971 * @param bounds Optional. If not null, it returns the extent of the line 6972 * @return the Y-coordinate of the baseline 6973 */ 6974 public int getLineBounds(int line, Rect bounds) { 6975 if (mLayout == null) { 6976 if (bounds != null) { 6977 bounds.set(0, 0, 0, 0); 6978 } 6979 return 0; 6980 } else { 6981 int baseline = mLayout.getLineBounds(line, bounds); 6982 6983 int voffset = getExtendedPaddingTop(); 6984 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6985 voffset += getVerticalOffset(true); 6986 } 6987 if (bounds != null) { 6988 bounds.offset(getCompoundPaddingLeft(), voffset); 6989 } 6990 return baseline + voffset; 6991 } 6992 } 6993 6994 @Override 6995 public int getBaseline() { 6996 if (mLayout == null) { 6997 return super.getBaseline(); 6998 } 6999 7000 return getBaselineOffset() + mLayout.getLineBaseline(0); 7001 } 7002 7003 int getBaselineOffset() { 7004 int voffset = 0; 7005 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7006 voffset = getVerticalOffset(true); 7007 } 7008 7009 if (isLayoutModeOptical(mParent)) { 7010 voffset -= getOpticalInsets().top; 7011 } 7012 7013 return getExtendedPaddingTop() + voffset; 7014 } 7015 7016 /** 7017 * @hide 7018 */ 7019 @Override 7020 protected int getFadeTop(boolean offsetRequired) { 7021 if (mLayout == null) return 0; 7022 7023 int voffset = 0; 7024 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7025 voffset = getVerticalOffset(true); 7026 } 7027 7028 if (offsetRequired) voffset += getTopPaddingOffset(); 7029 7030 return getExtendedPaddingTop() + voffset; 7031 } 7032 7033 /** 7034 * @hide 7035 */ 7036 @Override 7037 protected int getFadeHeight(boolean offsetRequired) { 7038 return mLayout != null ? mLayout.getHeight() : 0; 7039 } 7040 7041 @Override 7042 public PointerIcon onResolvePointerIcon(MotionEvent event, int pointerIndex) { 7043 if (mText instanceof Spannable && mLinksClickable) { 7044 final float x = event.getX(pointerIndex); 7045 final float y = event.getY(pointerIndex); 7046 final int offset = getOffsetForPosition(x, y); 7047 final ClickableSpan[] clickables = ((Spannable) mText).getSpans(offset, offset, 7048 ClickableSpan.class); 7049 if (clickables.length > 0) { 7050 return PointerIcon.getSystemIcon(mContext, PointerIcon.TYPE_HAND); 7051 } 7052 } 7053 if (isTextSelectable() || isTextEditable()) { 7054 return PointerIcon.getSystemIcon(mContext, PointerIcon.TYPE_TEXT); 7055 } 7056 return super.onResolvePointerIcon(event, pointerIndex); 7057 } 7058 7059 @Override 7060 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 7061 // Note: If the IME is in fullscreen mode and IMS#mExtractEditText is in text action mode, 7062 // InputMethodService#onKeyDown and InputMethodService#onKeyUp are responsible to call 7063 // InputMethodService#mExtractEditText.maybeHandleBackInTextActionMode(event). 7064 if (keyCode == KeyEvent.KEYCODE_BACK && handleBackInTextActionModeIfNeeded(event)) { 7065 return true; 7066 } 7067 return super.onKeyPreIme(keyCode, event); 7068 } 7069 7070 /** 7071 * @hide 7072 */ 7073 public boolean handleBackInTextActionModeIfNeeded(KeyEvent event) { 7074 // Do nothing unless mEditor is in text action mode. 7075 if (mEditor == null || mEditor.getTextActionMode() == null) { 7076 return false; 7077 } 7078 7079 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 7080 KeyEvent.DispatcherState state = getKeyDispatcherState(); 7081 if (state != null) { 7082 state.startTracking(event, this); 7083 } 7084 return true; 7085 } else if (event.getAction() == KeyEvent.ACTION_UP) { 7086 KeyEvent.DispatcherState state = getKeyDispatcherState(); 7087 if (state != null) { 7088 state.handleUpEvent(event); 7089 } 7090 if (event.isTracking() && !event.isCanceled()) { 7091 stopTextActionMode(); 7092 return true; 7093 } 7094 } 7095 return false; 7096 } 7097 7098 @Override 7099 public boolean onKeyDown(int keyCode, KeyEvent event) { 7100 final int which = doKeyDown(keyCode, event, null); 7101 if (which == KEY_EVENT_NOT_HANDLED) { 7102 return super.onKeyDown(keyCode, event); 7103 } 7104 7105 return true; 7106 } 7107 7108 @Override 7109 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 7110 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 7111 final int which = doKeyDown(keyCode, down, event); 7112 if (which == KEY_EVENT_NOT_HANDLED) { 7113 // Go through default dispatching. 7114 return super.onKeyMultiple(keyCode, repeatCount, event); 7115 } 7116 if (which == KEY_EVENT_HANDLED) { 7117 // Consumed the whole thing. 7118 return true; 7119 } 7120 7121 repeatCount--; 7122 7123 // We are going to dispatch the remaining events to either the input 7124 // or movement method. To do this, we will just send a repeated stream 7125 // of down and up events until we have done the complete repeatCount. 7126 // It would be nice if those interfaces had an onKeyMultiple() method, 7127 // but adding that is a more complicated change. 7128 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 7129 if (which == KEY_DOWN_HANDLED_BY_KEY_LISTENER) { 7130 // mEditor and mEditor.mInput are not null from doKeyDown 7131 mEditor.mKeyListener.onKeyUp(this, (Editable) mText, keyCode, up); 7132 while (--repeatCount > 0) { 7133 mEditor.mKeyListener.onKeyDown(this, (Editable) mText, keyCode, down); 7134 mEditor.mKeyListener.onKeyUp(this, (Editable) mText, keyCode, up); 7135 } 7136 hideErrorIfUnchanged(); 7137 7138 } else if (which == KEY_DOWN_HANDLED_BY_MOVEMENT_METHOD) { 7139 // mMovement is not null from doKeyDown 7140 mMovement.onKeyUp(this, (Spannable) mText, keyCode, up); 7141 while (--repeatCount > 0) { 7142 mMovement.onKeyDown(this, (Spannable) mText, keyCode, down); 7143 mMovement.onKeyUp(this, (Spannable) mText, keyCode, up); 7144 } 7145 } 7146 7147 return true; 7148 } 7149 7150 /** 7151 * Returns true if pressing ENTER in this field advances focus instead 7152 * of inserting the character. This is true mostly in single-line fields, 7153 * but also in mail addresses and subjects which will display on multiple 7154 * lines but where it doesn't make sense to insert newlines. 7155 */ 7156 private boolean shouldAdvanceFocusOnEnter() { 7157 if (getKeyListener() == null) { 7158 return false; 7159 } 7160 7161 if (mSingleLine) { 7162 return true; 7163 } 7164 7165 if (mEditor != null 7166 && (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) 7167 == EditorInfo.TYPE_CLASS_TEXT) { 7168 int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 7169 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 7170 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 7171 return true; 7172 } 7173 } 7174 7175 return false; 7176 } 7177 7178 /** 7179 * Returns true if pressing TAB in this field advances focus instead 7180 * of inserting the character. Insert tabs only in multi-line editors. 7181 */ 7182 private boolean shouldAdvanceFocusOnTab() { 7183 if (getKeyListener() != null && !mSingleLine && mEditor != null 7184 && (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) 7185 == EditorInfo.TYPE_CLASS_TEXT) { 7186 int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 7187 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 7188 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 7189 return false; 7190 } 7191 } 7192 return true; 7193 } 7194 7195 private boolean isDirectionalNavigationKey(int keyCode) { 7196 switch(keyCode) { 7197 case KeyEvent.KEYCODE_DPAD_UP: 7198 case KeyEvent.KEYCODE_DPAD_DOWN: 7199 case KeyEvent.KEYCODE_DPAD_LEFT: 7200 case KeyEvent.KEYCODE_DPAD_RIGHT: 7201 return true; 7202 } 7203 return false; 7204 } 7205 7206 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 7207 if (!isEnabled()) { 7208 return KEY_EVENT_NOT_HANDLED; 7209 } 7210 7211 // If this is the initial keydown, we don't want to prevent a movement away from this view. 7212 // While this shouldn't be necessary because any time we're preventing default movement we 7213 // should be restricting the focus to remain within this view, thus we'll also receive 7214 // the key up event, occasionally key up events will get dropped and we don't want to 7215 // prevent the user from traversing out of this on the next key down. 7216 if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) { 7217 mPreventDefaultMovement = false; 7218 } 7219 7220 switch (keyCode) { 7221 case KeyEvent.KEYCODE_ENTER: 7222 if (event.hasNoModifiers()) { 7223 // When mInputContentType is set, we know that we are 7224 // running in a "modern" cupcake environment, so don't need 7225 // to worry about the application trying to capture 7226 // enter key events. 7227 if (mEditor != null && mEditor.mInputContentType != null) { 7228 // If there is an action listener, given them a 7229 // chance to consume the event. 7230 if (mEditor.mInputContentType.onEditorActionListener != null 7231 && mEditor.mInputContentType.onEditorActionListener.onEditorAction( 7232 this, EditorInfo.IME_NULL, event)) { 7233 mEditor.mInputContentType.enterDown = true; 7234 // We are consuming the enter key for them. 7235 return KEY_EVENT_HANDLED; 7236 } 7237 } 7238 7239 // If our editor should move focus when enter is pressed, or 7240 // this is a generated event from an IME action button, then 7241 // don't let it be inserted into the text. 7242 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 7243 || shouldAdvanceFocusOnEnter()) { 7244 if (hasOnClickListeners()) { 7245 return KEY_EVENT_NOT_HANDLED; 7246 } 7247 return KEY_EVENT_HANDLED; 7248 } 7249 } 7250 break; 7251 7252 case KeyEvent.KEYCODE_DPAD_CENTER: 7253 if (event.hasNoModifiers()) { 7254 if (shouldAdvanceFocusOnEnter()) { 7255 return KEY_EVENT_NOT_HANDLED; 7256 } 7257 } 7258 break; 7259 7260 case KeyEvent.KEYCODE_TAB: 7261 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 7262 if (shouldAdvanceFocusOnTab()) { 7263 return KEY_EVENT_NOT_HANDLED; 7264 } 7265 } 7266 break; 7267 7268 // Has to be done on key down (and not on key up) to correctly be intercepted. 7269 case KeyEvent.KEYCODE_BACK: 7270 if (mEditor != null && mEditor.getTextActionMode() != null) { 7271 stopTextActionMode(); 7272 return KEY_EVENT_HANDLED; 7273 } 7274 break; 7275 7276 case KeyEvent.KEYCODE_CUT: 7277 if (event.hasNoModifiers() && canCut()) { 7278 if (onTextContextMenuItem(ID_CUT)) { 7279 return KEY_EVENT_HANDLED; 7280 } 7281 } 7282 break; 7283 7284 case KeyEvent.KEYCODE_COPY: 7285 if (event.hasNoModifiers() && canCopy()) { 7286 if (onTextContextMenuItem(ID_COPY)) { 7287 return KEY_EVENT_HANDLED; 7288 } 7289 } 7290 break; 7291 7292 case KeyEvent.KEYCODE_PASTE: 7293 if (event.hasNoModifiers() && canPaste()) { 7294 if (onTextContextMenuItem(ID_PASTE)) { 7295 return KEY_EVENT_HANDLED; 7296 } 7297 } 7298 break; 7299 } 7300 7301 if (mEditor != null && mEditor.mKeyListener != null) { 7302 boolean doDown = true; 7303 if (otherEvent != null) { 7304 try { 7305 beginBatchEdit(); 7306 final boolean handled = mEditor.mKeyListener.onKeyOther(this, (Editable) mText, 7307 otherEvent); 7308 hideErrorIfUnchanged(); 7309 doDown = false; 7310 if (handled) { 7311 return KEY_EVENT_HANDLED; 7312 } 7313 } catch (AbstractMethodError e) { 7314 // onKeyOther was added after 1.0, so if it isn't 7315 // implemented we need to try to dispatch as a regular down. 7316 } finally { 7317 endBatchEdit(); 7318 } 7319 } 7320 7321 if (doDown) { 7322 beginBatchEdit(); 7323 final boolean handled = mEditor.mKeyListener.onKeyDown(this, (Editable) mText, 7324 keyCode, event); 7325 endBatchEdit(); 7326 hideErrorIfUnchanged(); 7327 if (handled) return KEY_DOWN_HANDLED_BY_KEY_LISTENER; 7328 } 7329 } 7330 7331 // bug 650865: sometimes we get a key event before a layout. 7332 // don't try to move around if we don't know the layout. 7333 7334 if (mMovement != null && mLayout != null) { 7335 boolean doDown = true; 7336 if (otherEvent != null) { 7337 try { 7338 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 7339 otherEvent); 7340 doDown = false; 7341 if (handled) { 7342 return KEY_EVENT_HANDLED; 7343 } 7344 } catch (AbstractMethodError e) { 7345 // onKeyOther was added after 1.0, so if it isn't 7346 // implemented we need to try to dispatch as a regular down. 7347 } 7348 } 7349 if (doDown) { 7350 if (mMovement.onKeyDown(this, (Spannable) mText, keyCode, event)) { 7351 if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) { 7352 mPreventDefaultMovement = true; 7353 } 7354 return KEY_DOWN_HANDLED_BY_MOVEMENT_METHOD; 7355 } 7356 } 7357 // Consume arrows from keyboard devices to prevent focus leaving the editor. 7358 // DPAD/JOY devices (Gamepads, TV remotes) often lack a TAB key so allow those 7359 // to move focus with arrows. 7360 if (event.getSource() == InputDevice.SOURCE_KEYBOARD 7361 && isDirectionalNavigationKey(keyCode)) { 7362 return KEY_EVENT_HANDLED; 7363 } 7364 } 7365 7366 return mPreventDefaultMovement && !KeyEvent.isModifierKey(keyCode) 7367 ? KEY_EVENT_HANDLED : KEY_EVENT_NOT_HANDLED; 7368 } 7369 7370 /** 7371 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 7372 * can be recorded. 7373 * @hide 7374 */ 7375 public void resetErrorChangedFlag() { 7376 /* 7377 * Keep track of what the error was before doing the input 7378 * so that if an input filter changed the error, we leave 7379 * that error showing. Otherwise, we take down whatever 7380 * error was showing when the user types something. 7381 */ 7382 if (mEditor != null) mEditor.mErrorWasChanged = false; 7383 } 7384 7385 /** 7386 * @hide 7387 */ 7388 public void hideErrorIfUnchanged() { 7389 if (mEditor != null && mEditor.mError != null && !mEditor.mErrorWasChanged) { 7390 setError(null, null); 7391 } 7392 } 7393 7394 @Override 7395 public boolean onKeyUp(int keyCode, KeyEvent event) { 7396 if (!isEnabled()) { 7397 return super.onKeyUp(keyCode, event); 7398 } 7399 7400 if (!KeyEvent.isModifierKey(keyCode)) { 7401 mPreventDefaultMovement = false; 7402 } 7403 7404 switch (keyCode) { 7405 case KeyEvent.KEYCODE_DPAD_CENTER: 7406 if (event.hasNoModifiers()) { 7407 /* 7408 * If there is a click listener, just call through to 7409 * super, which will invoke it. 7410 * 7411 * If there isn't a click listener, try to show the soft 7412 * input method. (It will also 7413 * call performClick(), but that won't do anything in 7414 * this case.) 7415 */ 7416 if (!hasOnClickListeners()) { 7417 if (mMovement != null && mText instanceof Editable 7418 && mLayout != null && onCheckIsTextEditor()) { 7419 InputMethodManager imm = InputMethodManager.peekInstance(); 7420 viewClicked(imm); 7421 if (imm != null && getShowSoftInputOnFocus()) { 7422 imm.showSoftInput(this, 0); 7423 } 7424 } 7425 } 7426 } 7427 return super.onKeyUp(keyCode, event); 7428 7429 case KeyEvent.KEYCODE_ENTER: 7430 if (event.hasNoModifiers()) { 7431 if (mEditor != null && mEditor.mInputContentType != null 7432 && mEditor.mInputContentType.onEditorActionListener != null 7433 && mEditor.mInputContentType.enterDown) { 7434 mEditor.mInputContentType.enterDown = false; 7435 if (mEditor.mInputContentType.onEditorActionListener.onEditorAction( 7436 this, EditorInfo.IME_NULL, event)) { 7437 return true; 7438 } 7439 } 7440 7441 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 7442 || shouldAdvanceFocusOnEnter()) { 7443 /* 7444 * If there is a click listener, just call through to 7445 * super, which will invoke it. 7446 * 7447 * If there isn't a click listener, try to advance focus, 7448 * but still call through to super, which will reset the 7449 * pressed state and longpress state. (It will also 7450 * call performClick(), but that won't do anything in 7451 * this case.) 7452 */ 7453 if (!hasOnClickListeners()) { 7454 View v = focusSearch(FOCUS_DOWN); 7455 7456 if (v != null) { 7457 if (!v.requestFocus(FOCUS_DOWN)) { 7458 throw new IllegalStateException("focus search returned a view " 7459 + "that wasn't able to take focus!"); 7460 } 7461 7462 /* 7463 * Return true because we handled the key; super 7464 * will return false because there was no click 7465 * listener. 7466 */ 7467 super.onKeyUp(keyCode, event); 7468 return true; 7469 } else if ((event.getFlags() 7470 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 7471 // No target for next focus, but make sure the IME 7472 // if this came from it. 7473 InputMethodManager imm = InputMethodManager.peekInstance(); 7474 if (imm != null && imm.isActive(this)) { 7475 imm.hideSoftInputFromWindow(getWindowToken(), 0); 7476 } 7477 } 7478 } 7479 } 7480 return super.onKeyUp(keyCode, event); 7481 } 7482 break; 7483 } 7484 7485 if (mEditor != null && mEditor.mKeyListener != null) { 7486 if (mEditor.mKeyListener.onKeyUp(this, (Editable) mText, keyCode, event)) { 7487 return true; 7488 } 7489 } 7490 7491 if (mMovement != null && mLayout != null) { 7492 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) { 7493 return true; 7494 } 7495 } 7496 7497 return super.onKeyUp(keyCode, event); 7498 } 7499 7500 @Override 7501 public boolean onCheckIsTextEditor() { 7502 return mEditor != null && mEditor.mInputType != EditorInfo.TYPE_NULL; 7503 } 7504 7505 @Override 7506 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 7507 if (onCheckIsTextEditor() && isEnabled()) { 7508 mEditor.createInputMethodStateIfNeeded(); 7509 outAttrs.inputType = getInputType(); 7510 if (mEditor.mInputContentType != null) { 7511 outAttrs.imeOptions = mEditor.mInputContentType.imeOptions; 7512 outAttrs.privateImeOptions = mEditor.mInputContentType.privateImeOptions; 7513 outAttrs.actionLabel = mEditor.mInputContentType.imeActionLabel; 7514 outAttrs.actionId = mEditor.mInputContentType.imeActionId; 7515 outAttrs.extras = mEditor.mInputContentType.extras; 7516 outAttrs.hintLocales = mEditor.mInputContentType.imeHintLocales; 7517 } else { 7518 outAttrs.imeOptions = EditorInfo.IME_NULL; 7519 outAttrs.hintLocales = null; 7520 } 7521 if (focusSearch(FOCUS_DOWN) != null) { 7522 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 7523 } 7524 if (focusSearch(FOCUS_UP) != null) { 7525 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 7526 } 7527 if ((outAttrs.imeOptions & EditorInfo.IME_MASK_ACTION) 7528 == EditorInfo.IME_ACTION_UNSPECIFIED) { 7529 if ((outAttrs.imeOptions & EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 7530 // An action has not been set, but the enter key will move to 7531 // the next focus, so set the action to that. 7532 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 7533 } else { 7534 // An action has not been set, and there is no focus to move 7535 // to, so let's just supply a "done" action. 7536 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 7537 } 7538 if (!shouldAdvanceFocusOnEnter()) { 7539 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 7540 } 7541 } 7542 if (isMultilineInputType(outAttrs.inputType)) { 7543 // Multi-line text editors should always show an enter key. 7544 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 7545 } 7546 outAttrs.hintText = mHint; 7547 if (mText instanceof Editable) { 7548 InputConnection ic = new EditableInputConnection(this); 7549 outAttrs.initialSelStart = getSelectionStart(); 7550 outAttrs.initialSelEnd = getSelectionEnd(); 7551 outAttrs.initialCapsMode = ic.getCursorCapsMode(getInputType()); 7552 return ic; 7553 } 7554 } 7555 return null; 7556 } 7557 7558 /** 7559 * If this TextView contains editable content, extract a portion of it 7560 * based on the information in <var>request</var> in to <var>outText</var>. 7561 * @return Returns true if the text was successfully extracted, else false. 7562 */ 7563 public boolean extractText(ExtractedTextRequest request, ExtractedText outText) { 7564 createEditorIfNeeded(); 7565 return mEditor.extractText(request, outText); 7566 } 7567 7568 /** 7569 * This is used to remove all style-impacting spans from text before new 7570 * extracted text is being replaced into it, so that we don't have any 7571 * lingering spans applied during the replace. 7572 */ 7573 static void removeParcelableSpans(Spannable spannable, int start, int end) { 7574 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 7575 int i = spans.length; 7576 while (i > 0) { 7577 i--; 7578 spannable.removeSpan(spans[i]); 7579 } 7580 } 7581 7582 /** 7583 * Apply to this text view the given extracted text, as previously 7584 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 7585 */ 7586 public void setExtractedText(ExtractedText text) { 7587 Editable content = getEditableText(); 7588 if (text.text != null) { 7589 if (content == null) { 7590 setText(text.text, TextView.BufferType.EDITABLE); 7591 } else { 7592 int start = 0; 7593 int end = content.length(); 7594 7595 if (text.partialStartOffset >= 0) { 7596 final int N = content.length(); 7597 start = text.partialStartOffset; 7598 if (start > N) start = N; 7599 end = text.partialEndOffset; 7600 if (end > N) end = N; 7601 } 7602 7603 removeParcelableSpans(content, start, end); 7604 if (TextUtils.equals(content.subSequence(start, end), text.text)) { 7605 if (text.text instanceof Spanned) { 7606 // OK to copy spans only. 7607 TextUtils.copySpansFrom((Spanned) text.text, 0, end - start, 7608 Object.class, content, start); 7609 } 7610 } else { 7611 content.replace(start, end, text.text); 7612 } 7613 } 7614 } 7615 7616 // Now set the selection position... make sure it is in range, to 7617 // avoid crashes. If this is a partial update, it is possible that 7618 // the underlying text may have changed, causing us problems here. 7619 // Also we just don't want to trust clients to do the right thing. 7620 Spannable sp = (Spannable) getText(); 7621 final int N = sp.length(); 7622 int start = text.selectionStart; 7623 if (start < 0) { 7624 start = 0; 7625 } else if (start > N) { 7626 start = N; 7627 } 7628 int end = text.selectionEnd; 7629 if (end < 0) { 7630 end = 0; 7631 } else if (end > N) { 7632 end = N; 7633 } 7634 Selection.setSelection(sp, start, end); 7635 7636 // Finally, update the selection mode. 7637 if ((text.flags & ExtractedText.FLAG_SELECTING) != 0) { 7638 MetaKeyKeyListener.startSelecting(this, sp); 7639 } else { 7640 MetaKeyKeyListener.stopSelecting(this, sp); 7641 } 7642 } 7643 7644 /** 7645 * @hide 7646 */ 7647 public void setExtracting(ExtractedTextRequest req) { 7648 if (mEditor.mInputMethodState != null) { 7649 mEditor.mInputMethodState.mExtractedTextRequest = req; 7650 } 7651 // This would stop a possible selection mode, but no such mode is started in case 7652 // extracted mode will start. Some text is selected though, and will trigger an action mode 7653 // in the extracted view. 7654 mEditor.hideCursorAndSpanControllers(); 7655 stopTextActionMode(); 7656 if (mEditor.mSelectionModifierCursorController != null) { 7657 mEditor.mSelectionModifierCursorController.resetTouchOffsets(); 7658 } 7659 } 7660 7661 /** 7662 * Called by the framework in response to a text completion from 7663 * the current input method, provided by it calling 7664 * {@link InputConnection#commitCompletion 7665 * InputConnection.commitCompletion()}. The default implementation does 7666 * nothing; text views that are supporting auto-completion should override 7667 * this to do their desired behavior. 7668 * 7669 * @param text The auto complete text the user has selected. 7670 */ 7671 public void onCommitCompletion(CompletionInfo text) { 7672 // intentionally empty 7673 } 7674 7675 /** 7676 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 7677 * dictionary) from the current input method, provided by it calling 7678 * {@link InputConnection#commitCorrection(CorrectionInfo) InputConnection.commitCorrection()}. 7679 * The default implementation flashes the background of the corrected word to provide 7680 * feedback to the user. 7681 * 7682 * @param info The auto correct info about the text that was corrected. 7683 */ 7684 public void onCommitCorrection(CorrectionInfo info) { 7685 if (mEditor != null) mEditor.onCommitCorrection(info); 7686 } 7687 7688 public void beginBatchEdit() { 7689 if (mEditor != null) mEditor.beginBatchEdit(); 7690 } 7691 7692 public void endBatchEdit() { 7693 if (mEditor != null) mEditor.endBatchEdit(); 7694 } 7695 7696 /** 7697 * Called by the framework in response to a request to begin a batch 7698 * of edit operations through a call to link {@link #beginBatchEdit()}. 7699 */ 7700 public void onBeginBatchEdit() { 7701 // intentionally empty 7702 } 7703 7704 /** 7705 * Called by the framework in response to a request to end a batch 7706 * of edit operations through a call to link {@link #endBatchEdit}. 7707 */ 7708 public void onEndBatchEdit() { 7709 // intentionally empty 7710 } 7711 7712 /** 7713 * Called by the framework in response to a private command from the 7714 * current method, provided by it calling 7715 * {@link InputConnection#performPrivateCommand 7716 * InputConnection.performPrivateCommand()}. 7717 * 7718 * @param action The action name of the command. 7719 * @param data Any additional data for the command. This may be null. 7720 * @return Return true if you handled the command, else false. 7721 */ 7722 public boolean onPrivateIMECommand(String action, Bundle data) { 7723 return false; 7724 } 7725 7726 private void nullLayouts() { 7727 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 7728 mSavedLayout = (BoringLayout) mLayout; 7729 } 7730 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 7731 mSavedHintLayout = (BoringLayout) mHintLayout; 7732 } 7733 7734 mSavedMarqueeModeLayout = mLayout = mHintLayout = null; 7735 7736 mBoring = mHintBoring = null; 7737 7738 // Since it depends on the value of mLayout 7739 if (mEditor != null) mEditor.prepareCursorControllers(); 7740 } 7741 7742 /** 7743 * Make a new Layout based on the already-measured size of the view, 7744 * on the assumption that it was measured correctly at some point. 7745 */ 7746 private void assumeLayout() { 7747 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 7748 7749 if (width < 1) { 7750 width = 0; 7751 } 7752 7753 int physicalWidth = width; 7754 7755 if (mHorizontallyScrolling) { 7756 width = VERY_WIDE; 7757 } 7758 7759 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 7760 physicalWidth, false); 7761 } 7762 7763 private Layout.Alignment getLayoutAlignment() { 7764 Layout.Alignment alignment; 7765 switch (getTextAlignment()) { 7766 case TEXT_ALIGNMENT_GRAVITY: 7767 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 7768 case Gravity.START: 7769 alignment = Layout.Alignment.ALIGN_NORMAL; 7770 break; 7771 case Gravity.END: 7772 alignment = Layout.Alignment.ALIGN_OPPOSITE; 7773 break; 7774 case Gravity.LEFT: 7775 alignment = Layout.Alignment.ALIGN_LEFT; 7776 break; 7777 case Gravity.RIGHT: 7778 alignment = Layout.Alignment.ALIGN_RIGHT; 7779 break; 7780 case Gravity.CENTER_HORIZONTAL: 7781 alignment = Layout.Alignment.ALIGN_CENTER; 7782 break; 7783 default: 7784 alignment = Layout.Alignment.ALIGN_NORMAL; 7785 break; 7786 } 7787 break; 7788 case TEXT_ALIGNMENT_TEXT_START: 7789 alignment = Layout.Alignment.ALIGN_NORMAL; 7790 break; 7791 case TEXT_ALIGNMENT_TEXT_END: 7792 alignment = Layout.Alignment.ALIGN_OPPOSITE; 7793 break; 7794 case TEXT_ALIGNMENT_CENTER: 7795 alignment = Layout.Alignment.ALIGN_CENTER; 7796 break; 7797 case TEXT_ALIGNMENT_VIEW_START: 7798 alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) 7799 ? Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 7800 break; 7801 case TEXT_ALIGNMENT_VIEW_END: 7802 alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) 7803 ? Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 7804 break; 7805 case TEXT_ALIGNMENT_INHERIT: 7806 // This should never happen as we have already resolved the text alignment 7807 // but better safe than sorry so we just fall through 7808 default: 7809 alignment = Layout.Alignment.ALIGN_NORMAL; 7810 break; 7811 } 7812 return alignment; 7813 } 7814 7815 /** 7816 * The width passed in is now the desired layout width, 7817 * not the full view width with padding. 7818 * {@hide} 7819 */ 7820 protected void makeNewLayout(int wantWidth, int hintWidth, 7821 BoringLayout.Metrics boring, 7822 BoringLayout.Metrics hintBoring, 7823 int ellipsisWidth, boolean bringIntoView) { 7824 stopMarquee(); 7825 7826 // Update "old" cached values 7827 mOldMaximum = mMaximum; 7828 mOldMaxMode = mMaxMode; 7829 7830 mHighlightPathBogus = true; 7831 7832 if (wantWidth < 0) { 7833 wantWidth = 0; 7834 } 7835 if (hintWidth < 0) { 7836 hintWidth = 0; 7837 } 7838 7839 Layout.Alignment alignment = getLayoutAlignment(); 7840 final boolean testDirChange = mSingleLine && mLayout != null 7841 && (alignment == Layout.Alignment.ALIGN_NORMAL 7842 || alignment == Layout.Alignment.ALIGN_OPPOSITE); 7843 int oldDir = 0; 7844 if (testDirChange) oldDir = mLayout.getParagraphDirection(0); 7845 boolean shouldEllipsize = mEllipsize != null && getKeyListener() == null; 7846 final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE 7847 && mMarqueeFadeMode != MARQUEE_FADE_NORMAL; 7848 TruncateAt effectiveEllipsize = mEllipsize; 7849 if (mEllipsize == TruncateAt.MARQUEE 7850 && mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7851 effectiveEllipsize = TruncateAt.END_SMALL; 7852 } 7853 7854 if (mTextDir == null) { 7855 mTextDir = getTextDirectionHeuristic(); 7856 } 7857 7858 mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize, 7859 effectiveEllipsize, effectiveEllipsize == mEllipsize); 7860 if (switchEllipsize) { 7861 TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE 7862 ? TruncateAt.END : TruncateAt.MARQUEE; 7863 mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, 7864 shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize); 7865 } 7866 7867 shouldEllipsize = mEllipsize != null; 7868 mHintLayout = null; 7869 7870 if (mHint != null) { 7871 if (shouldEllipsize) hintWidth = wantWidth; 7872 7873 if (hintBoring == UNKNOWN_BORING) { 7874 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 7875 mHintBoring); 7876 if (hintBoring != null) { 7877 mHintBoring = hintBoring; 7878 } 7879 } 7880 7881 if (hintBoring != null) { 7882 if (hintBoring.width <= hintWidth 7883 && (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 7884 if (mSavedHintLayout != null) { 7885 mHintLayout = mSavedHintLayout.replaceOrMake(mHint, mTextPaint, 7886 hintWidth, alignment, mSpacingMult, mSpacingAdd, 7887 hintBoring, mIncludePad); 7888 } else { 7889 mHintLayout = BoringLayout.make(mHint, mTextPaint, 7890 hintWidth, alignment, mSpacingMult, mSpacingAdd, 7891 hintBoring, mIncludePad); 7892 } 7893 7894 mSavedHintLayout = (BoringLayout) mHintLayout; 7895 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 7896 if (mSavedHintLayout != null) { 7897 mHintLayout = mSavedHintLayout.replaceOrMake(mHint, mTextPaint, 7898 hintWidth, alignment, mSpacingMult, mSpacingAdd, 7899 hintBoring, mIncludePad, mEllipsize, 7900 ellipsisWidth); 7901 } else { 7902 mHintLayout = BoringLayout.make(mHint, mTextPaint, 7903 hintWidth, alignment, mSpacingMult, mSpacingAdd, 7904 hintBoring, mIncludePad, mEllipsize, 7905 ellipsisWidth); 7906 } 7907 } 7908 } 7909 // TODO: code duplication with makeSingleLayout() 7910 if (mHintLayout == null) { 7911 StaticLayout.Builder builder = StaticLayout.Builder.obtain(mHint, 0, 7912 mHint.length(), mTextPaint, hintWidth) 7913 .setAlignment(alignment) 7914 .setTextDirection(mTextDir) 7915 .setLineSpacing(mSpacingAdd, mSpacingMult) 7916 .setIncludePad(mIncludePad) 7917 .setBreakStrategy(mBreakStrategy) 7918 .setHyphenationFrequency(mHyphenationFrequency) 7919 .setJustificationMode(mJustificationMode) 7920 .setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 7921 if (shouldEllipsize) { 7922 builder.setEllipsize(mEllipsize) 7923 .setEllipsizedWidth(ellipsisWidth); 7924 } 7925 mHintLayout = builder.build(); 7926 } 7927 } 7928 7929 if (bringIntoView || (testDirChange && oldDir != mLayout.getParagraphDirection(0))) { 7930 registerForPreDraw(); 7931 } 7932 7933 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7934 if (!compressText(ellipsisWidth)) { 7935 final int height = mLayoutParams.height; 7936 // If the size of the view does not depend on the size of the text, try to 7937 // start the marquee immediately 7938 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 7939 startMarquee(); 7940 } else { 7941 // Defer the start of the marquee until we know our width (see setFrame()) 7942 mRestartMarquee = true; 7943 } 7944 } 7945 } 7946 7947 // CursorControllers need a non-null mLayout 7948 if (mEditor != null) mEditor.prepareCursorControllers(); 7949 } 7950 7951 /** 7952 * @hide 7953 */ 7954 protected Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth, 7955 Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize, 7956 boolean useSaved) { 7957 Layout result = null; 7958 if (mText instanceof Spannable) { 7959 final DynamicLayout.Builder builder = DynamicLayout.Builder.obtain(mText, mTextPaint, 7960 wantWidth) 7961 .setDisplayText(mTransformed) 7962 .setAlignment(alignment) 7963 .setTextDirection(mTextDir) 7964 .setLineSpacing(mSpacingAdd, mSpacingMult) 7965 .setIncludePad(mIncludePad) 7966 .setBreakStrategy(mBreakStrategy) 7967 .setHyphenationFrequency(mHyphenationFrequency) 7968 .setJustificationMode(mJustificationMode) 7969 .setEllipsize(getKeyListener() == null ? effectiveEllipsize : null) 7970 .setEllipsizedWidth(ellipsisWidth); 7971 result = builder.build(); 7972 } else { 7973 if (boring == UNKNOWN_BORING) { 7974 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 7975 if (boring != null) { 7976 mBoring = boring; 7977 } 7978 } 7979 7980 if (boring != null) { 7981 if (boring.width <= wantWidth 7982 && (effectiveEllipsize == null || boring.width <= ellipsisWidth)) { 7983 if (useSaved && mSavedLayout != null) { 7984 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 7985 wantWidth, alignment, mSpacingMult, mSpacingAdd, 7986 boring, mIncludePad); 7987 } else { 7988 result = BoringLayout.make(mTransformed, mTextPaint, 7989 wantWidth, alignment, mSpacingMult, mSpacingAdd, 7990 boring, mIncludePad); 7991 } 7992 7993 if (useSaved) { 7994 mSavedLayout = (BoringLayout) result; 7995 } 7996 } else if (shouldEllipsize && boring.width <= wantWidth) { 7997 if (useSaved && mSavedLayout != null) { 7998 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 7999 wantWidth, alignment, mSpacingMult, mSpacingAdd, 8000 boring, mIncludePad, effectiveEllipsize, 8001 ellipsisWidth); 8002 } else { 8003 result = BoringLayout.make(mTransformed, mTextPaint, 8004 wantWidth, alignment, mSpacingMult, mSpacingAdd, 8005 boring, mIncludePad, effectiveEllipsize, 8006 ellipsisWidth); 8007 } 8008 } 8009 } 8010 } 8011 if (result == null) { 8012 StaticLayout.Builder builder = StaticLayout.Builder.obtain(mTransformed, 8013 0, mTransformed.length(), mTextPaint, wantWidth) 8014 .setAlignment(alignment) 8015 .setTextDirection(mTextDir) 8016 .setLineSpacing(mSpacingAdd, mSpacingMult) 8017 .setIncludePad(mIncludePad) 8018 .setBreakStrategy(mBreakStrategy) 8019 .setHyphenationFrequency(mHyphenationFrequency) 8020 .setJustificationMode(mJustificationMode) 8021 .setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 8022 if (shouldEllipsize) { 8023 builder.setEllipsize(effectiveEllipsize) 8024 .setEllipsizedWidth(ellipsisWidth); 8025 } 8026 result = builder.build(); 8027 } 8028 return result; 8029 } 8030 8031 private boolean compressText(float width) { 8032 if (isHardwareAccelerated()) return false; 8033 8034 // Only compress the text if it hasn't been compressed by the previous pass 8035 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX 8036 && mTextPaint.getTextScaleX() == 1.0f) { 8037 final float textWidth = mLayout.getLineWidth(0); 8038 final float overflow = (textWidth + 1.0f - width) / width; 8039 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 8040 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 8041 post(new Runnable() { 8042 public void run() { 8043 requestLayout(); 8044 } 8045 }); 8046 return true; 8047 } 8048 } 8049 8050 return false; 8051 } 8052 8053 private static int desired(Layout layout) { 8054 int n = layout.getLineCount(); 8055 CharSequence text = layout.getText(); 8056 float max = 0; 8057 8058 // if any line was wrapped, we can't use it. 8059 // but it's ok for the last line not to have a newline 8060 8061 for (int i = 0; i < n - 1; i++) { 8062 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') { 8063 return -1; 8064 } 8065 } 8066 8067 for (int i = 0; i < n; i++) { 8068 max = Math.max(max, layout.getLineWidth(i)); 8069 } 8070 8071 return (int) Math.ceil(max); 8072 } 8073 8074 /** 8075 * Set whether the TextView includes extra top and bottom padding to make 8076 * room for accents that go above the normal ascent and descent. 8077 * The default is true. 8078 * 8079 * @see #getIncludeFontPadding() 8080 * 8081 * @attr ref android.R.styleable#TextView_includeFontPadding 8082 */ 8083 public void setIncludeFontPadding(boolean includepad) { 8084 if (mIncludePad != includepad) { 8085 mIncludePad = includepad; 8086 8087 if (mLayout != null) { 8088 nullLayouts(); 8089 requestLayout(); 8090 invalidate(); 8091 } 8092 } 8093 } 8094 8095 /** 8096 * Gets whether the TextView includes extra top and bottom padding to make 8097 * room for accents that go above the normal ascent and descent. 8098 * 8099 * @see #setIncludeFontPadding(boolean) 8100 * 8101 * @attr ref android.R.styleable#TextView_includeFontPadding 8102 */ 8103 public boolean getIncludeFontPadding() { 8104 return mIncludePad; 8105 } 8106 8107 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 8108 8109 @Override 8110 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 8111 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 8112 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 8113 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 8114 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 8115 8116 int width; 8117 int height; 8118 8119 BoringLayout.Metrics boring = UNKNOWN_BORING; 8120 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 8121 8122 if (mTextDir == null) { 8123 mTextDir = getTextDirectionHeuristic(); 8124 } 8125 8126 int des = -1; 8127 boolean fromexisting = false; 8128 final float widthLimit = (widthMode == MeasureSpec.AT_MOST) 8129 ? (float) widthSize : Float.MAX_VALUE; 8130 8131 if (widthMode == MeasureSpec.EXACTLY) { 8132 // Parent has told us how big to be. So be it. 8133 width = widthSize; 8134 } else { 8135 if (mLayout != null && mEllipsize == null) { 8136 des = desired(mLayout); 8137 } 8138 8139 if (des < 0) { 8140 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 8141 if (boring != null) { 8142 mBoring = boring; 8143 } 8144 } else { 8145 fromexisting = true; 8146 } 8147 8148 if (boring == null || boring == UNKNOWN_BORING) { 8149 if (des < 0) { 8150 des = (int) Math.ceil(Layout.getDesiredWidthWithLimit(mTransformed, 0, 8151 mTransformed.length(), mTextPaint, mTextDir, widthLimit)); 8152 } 8153 width = des; 8154 } else { 8155 width = boring.width; 8156 } 8157 8158 final Drawables dr = mDrawables; 8159 if (dr != null) { 8160 width = Math.max(width, dr.mDrawableWidthTop); 8161 width = Math.max(width, dr.mDrawableWidthBottom); 8162 } 8163 8164 if (mHint != null) { 8165 int hintDes = -1; 8166 int hintWidth; 8167 8168 if (mHintLayout != null && mEllipsize == null) { 8169 hintDes = desired(mHintLayout); 8170 } 8171 8172 if (hintDes < 0) { 8173 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, mHintBoring); 8174 if (hintBoring != null) { 8175 mHintBoring = hintBoring; 8176 } 8177 } 8178 8179 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 8180 if (hintDes < 0) { 8181 hintDes = (int) Math.ceil(Layout.getDesiredWidthWithLimit(mHint, 0, 8182 mHint.length(), mTextPaint, mTextDir, widthLimit)); 8183 } 8184 hintWidth = hintDes; 8185 } else { 8186 hintWidth = hintBoring.width; 8187 } 8188 8189 if (hintWidth > width) { 8190 width = hintWidth; 8191 } 8192 } 8193 8194 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 8195 8196 if (mMaxWidthMode == EMS) { 8197 width = Math.min(width, mMaxWidth * getLineHeight()); 8198 } else { 8199 width = Math.min(width, mMaxWidth); 8200 } 8201 8202 if (mMinWidthMode == EMS) { 8203 width = Math.max(width, mMinWidth * getLineHeight()); 8204 } else { 8205 width = Math.max(width, mMinWidth); 8206 } 8207 8208 // Check against our minimum width 8209 width = Math.max(width, getSuggestedMinimumWidth()); 8210 8211 if (widthMode == MeasureSpec.AT_MOST) { 8212 width = Math.min(widthSize, width); 8213 } 8214 } 8215 8216 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 8217 int unpaddedWidth = want; 8218 8219 if (mHorizontallyScrolling) want = VERY_WIDE; 8220 8221 int hintWant = want; 8222 int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth(); 8223 8224 if (mLayout == null) { 8225 makeNewLayout(want, hintWant, boring, hintBoring, 8226 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 8227 } else { 8228 final boolean layoutChanged = (mLayout.getWidth() != want) || (hintWidth != hintWant) 8229 || (mLayout.getEllipsizedWidth() 8230 != width - getCompoundPaddingLeft() - getCompoundPaddingRight()); 8231 8232 final boolean widthChanged = (mHint == null) && (mEllipsize == null) 8233 && (want > mLayout.getWidth()) 8234 && (mLayout instanceof BoringLayout 8235 || (fromexisting && des >= 0 && des <= want)); 8236 8237 final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum); 8238 8239 if (layoutChanged || maximumChanged) { 8240 if (!maximumChanged && widthChanged) { 8241 mLayout.increaseWidthTo(want); 8242 } else { 8243 makeNewLayout(want, hintWant, boring, hintBoring, 8244 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 8245 } 8246 } else { 8247 // Nothing has changed 8248 } 8249 } 8250 8251 if (heightMode == MeasureSpec.EXACTLY) { 8252 // Parent has told us how big to be. So be it. 8253 height = heightSize; 8254 mDesiredHeightAtMeasure = -1; 8255 } else { 8256 int desired = getDesiredHeight(); 8257 8258 height = desired; 8259 mDesiredHeightAtMeasure = desired; 8260 8261 if (heightMode == MeasureSpec.AT_MOST) { 8262 height = Math.min(desired, heightSize); 8263 } 8264 } 8265 8266 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 8267 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 8268 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 8269 } 8270 8271 /* 8272 * We didn't let makeNewLayout() register to bring the cursor into view, 8273 * so do it here if there is any possibility that it is needed. 8274 */ 8275 if (mMovement != null 8276 || mLayout.getWidth() > unpaddedWidth 8277 || mLayout.getHeight() > unpaddedHeight) { 8278 registerForPreDraw(); 8279 } else { 8280 scrollTo(0, 0); 8281 } 8282 8283 setMeasuredDimension(width, height); 8284 } 8285 8286 /** 8287 * Automatically computes and sets the text size. 8288 */ 8289 private void autoSizeText() { 8290 if (!isAutoSizeEnabled()) { 8291 return; 8292 } 8293 8294 if (mNeedsAutoSizeText) { 8295 if (getMeasuredWidth() <= 0 || getMeasuredHeight() <= 0) { 8296 return; 8297 } 8298 8299 final int availableWidth = mHorizontallyScrolling 8300 ? VERY_WIDE 8301 : getMeasuredWidth() - getTotalPaddingLeft() - getTotalPaddingRight(); 8302 final int availableHeight = getMeasuredHeight() - getExtendedPaddingBottom() 8303 - getExtendedPaddingTop(); 8304 8305 if (availableWidth <= 0 || availableHeight <= 0) { 8306 return; 8307 } 8308 8309 synchronized (TEMP_RECTF) { 8310 TEMP_RECTF.setEmpty(); 8311 TEMP_RECTF.right = availableWidth; 8312 TEMP_RECTF.bottom = availableHeight; 8313 final float optimalTextSize = findLargestTextSizeWhichFits(TEMP_RECTF); 8314 8315 if (optimalTextSize != getTextSize()) { 8316 setTextSizeInternal(TypedValue.COMPLEX_UNIT_PX, optimalTextSize, 8317 false /* shouldRequestLayout */); 8318 8319 makeNewLayout(availableWidth, 0 /* hintWidth */, UNKNOWN_BORING, UNKNOWN_BORING, 8320 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 8321 false /* bringIntoView */); 8322 } 8323 } 8324 } 8325 // Always try to auto-size if enabled. Functions that do not want to trigger auto-sizing 8326 // after the next layout pass should set this to false. 8327 mNeedsAutoSizeText = true; 8328 } 8329 8330 /** 8331 * Performs a binary search to find the largest text size that will still fit within the size 8332 * available to this view. 8333 */ 8334 private int findLargestTextSizeWhichFits(RectF availableSpace) { 8335 final int sizesCount = mAutoSizeTextSizesInPx.length; 8336 if (sizesCount == 0) { 8337 throw new IllegalStateException("No available text sizes to choose from."); 8338 } 8339 8340 int bestSizeIndex = 0; 8341 int lowIndex = bestSizeIndex + 1; 8342 int highIndex = sizesCount - 1; 8343 int sizeToTryIndex; 8344 while (lowIndex <= highIndex) { 8345 sizeToTryIndex = (lowIndex + highIndex) / 2; 8346 if (suggestedSizeFitsInSpace(mAutoSizeTextSizesInPx[sizeToTryIndex], availableSpace)) { 8347 bestSizeIndex = lowIndex; 8348 lowIndex = sizeToTryIndex + 1; 8349 } else { 8350 highIndex = sizeToTryIndex - 1; 8351 bestSizeIndex = highIndex; 8352 } 8353 } 8354 8355 return mAutoSizeTextSizesInPx[bestSizeIndex]; 8356 } 8357 8358 private boolean suggestedSizeFitsInSpace(int suggestedSizeInPx, RectF availableSpace) { 8359 final CharSequence text = mTransformed != null 8360 ? mTransformed 8361 : getText(); 8362 final int maxLines = getMaxLines(); 8363 if (mTempTextPaint == null) { 8364 mTempTextPaint = new TextPaint(); 8365 } else { 8366 mTempTextPaint.reset(); 8367 } 8368 mTempTextPaint.set(getPaint()); 8369 mTempTextPaint.setTextSize(suggestedSizeInPx); 8370 8371 final StaticLayout.Builder layoutBuilder = StaticLayout.Builder.obtain( 8372 text, 0, text.length(), mTempTextPaint, Math.round(availableSpace.right)); 8373 8374 layoutBuilder.setAlignment(getLayoutAlignment()) 8375 .setLineSpacing(getLineSpacingExtra(), getLineSpacingMultiplier()) 8376 .setIncludePad(getIncludeFontPadding()) 8377 .setBreakStrategy(getBreakStrategy()) 8378 .setHyphenationFrequency(getHyphenationFrequency()) 8379 .setJustificationMode(getJustificationMode()) 8380 .setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE) 8381 .setTextDirection(getTextDirectionHeuristic()); 8382 8383 final StaticLayout layout = layoutBuilder.build(); 8384 8385 // Lines overflow. 8386 if (maxLines != -1 && layout.getLineCount() > maxLines) { 8387 return false; 8388 } 8389 8390 // Height overflow. 8391 if (layout.getHeight() > availableSpace.bottom) { 8392 return false; 8393 } 8394 8395 return true; 8396 } 8397 8398 private int getDesiredHeight() { 8399 return Math.max( 8400 getDesiredHeight(mLayout, true), 8401 getDesiredHeight(mHintLayout, mEllipsize != null)); 8402 } 8403 8404 private int getDesiredHeight(Layout layout, boolean cap) { 8405 if (layout == null) { 8406 return 0; 8407 } 8408 8409 /* 8410 * Don't cap the hint to a certain number of lines. 8411 * (Do cap it, though, if we have a maximum pixel height.) 8412 */ 8413 int desired = layout.getHeight(cap); 8414 8415 final Drawables dr = mDrawables; 8416 if (dr != null) { 8417 desired = Math.max(desired, dr.mDrawableHeightLeft); 8418 desired = Math.max(desired, dr.mDrawableHeightRight); 8419 } 8420 8421 int linecount = layout.getLineCount(); 8422 final int padding = getCompoundPaddingTop() + getCompoundPaddingBottom(); 8423 desired += padding; 8424 8425 if (mMaxMode != LINES) { 8426 desired = Math.min(desired, mMaximum); 8427 } else if (cap && linecount > mMaximum && layout instanceof DynamicLayout) { 8428 desired = layout.getLineTop(mMaximum); 8429 8430 if (dr != null) { 8431 desired = Math.max(desired, dr.mDrawableHeightLeft); 8432 desired = Math.max(desired, dr.mDrawableHeightRight); 8433 } 8434 8435 desired += padding; 8436 linecount = mMaximum; 8437 } 8438 8439 if (mMinMode == LINES) { 8440 if (linecount < mMinimum) { 8441 desired += getLineHeight() * (mMinimum - linecount); 8442 } 8443 } else { 8444 desired = Math.max(desired, mMinimum); 8445 } 8446 8447 // Check against our minimum height 8448 desired = Math.max(desired, getSuggestedMinimumHeight()); 8449 8450 return desired; 8451 } 8452 8453 /** 8454 * Check whether a change to the existing text layout requires a 8455 * new view layout. 8456 */ 8457 private void checkForResize() { 8458 boolean sizeChanged = false; 8459 8460 if (mLayout != null) { 8461 // Check if our width changed 8462 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 8463 sizeChanged = true; 8464 invalidate(); 8465 } 8466 8467 // Check if our height changed 8468 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 8469 int desiredHeight = getDesiredHeight(); 8470 8471 if (desiredHeight != this.getHeight()) { 8472 sizeChanged = true; 8473 } 8474 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 8475 if (mDesiredHeightAtMeasure >= 0) { 8476 int desiredHeight = getDesiredHeight(); 8477 8478 if (desiredHeight != mDesiredHeightAtMeasure) { 8479 sizeChanged = true; 8480 } 8481 } 8482 } 8483 } 8484 8485 if (sizeChanged) { 8486 requestLayout(); 8487 // caller will have already invalidated 8488 } 8489 } 8490 8491 /** 8492 * Check whether entirely new text requires a new view layout 8493 * or merely a new text layout. 8494 */ 8495 private void checkForRelayout() { 8496 // If we have a fixed width, we can just swap in a new text layout 8497 // if the text height stays the same or if the view height is fixed. 8498 8499 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT 8500 || (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) 8501 && (mHint == null || mHintLayout != null) 8502 && (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 8503 // Static width, so try making a new text layout. 8504 8505 int oldht = mLayout.getHeight(); 8506 int want = mLayout.getWidth(); 8507 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 8508 8509 /* 8510 * No need to bring the text into view, since the size is not 8511 * changing (unless we do the requestLayout(), in which case it 8512 * will happen at measure). 8513 */ 8514 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 8515 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 8516 false); 8517 8518 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 8519 // In a fixed-height view, so use our new text layout. 8520 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT 8521 && mLayoutParams.height != LayoutParams.MATCH_PARENT) { 8522 autoSizeText(); 8523 invalidate(); 8524 return; 8525 } 8526 8527 // Dynamic height, but height has stayed the same, 8528 // so use our new text layout. 8529 if (mLayout.getHeight() == oldht 8530 && (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 8531 autoSizeText(); 8532 invalidate(); 8533 return; 8534 } 8535 } 8536 8537 // We lose: the height has changed and we have a dynamic height. 8538 // Request a new view layout using our new text layout. 8539 requestLayout(); 8540 invalidate(); 8541 } else { 8542 // Dynamic width, so we have no choice but to request a new 8543 // view layout with a new text layout. 8544 nullLayouts(); 8545 requestLayout(); 8546 invalidate(); 8547 } 8548 } 8549 8550 @Override 8551 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 8552 super.onLayout(changed, left, top, right, bottom); 8553 if (mDeferScroll >= 0) { 8554 int curs = mDeferScroll; 8555 mDeferScroll = -1; 8556 bringPointIntoView(Math.min(curs, mText.length())); 8557 } 8558 // Call auto-size after the width and height have been calculated. 8559 autoSizeText(); 8560 } 8561 8562 private boolean isShowingHint() { 8563 return TextUtils.isEmpty(mText) && !TextUtils.isEmpty(mHint); 8564 } 8565 8566 /** 8567 * Returns true if anything changed. 8568 */ 8569 private boolean bringTextIntoView() { 8570 Layout layout = isShowingHint() ? mHintLayout : mLayout; 8571 int line = 0; 8572 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 8573 line = layout.getLineCount() - 1; 8574 } 8575 8576 Layout.Alignment a = layout.getParagraphAlignment(line); 8577 int dir = layout.getParagraphDirection(line); 8578 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 8579 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 8580 int ht = layout.getHeight(); 8581 8582 int scrollx, scrolly; 8583 8584 // Convert to left, center, or right alignment. 8585 if (a == Layout.Alignment.ALIGN_NORMAL) { 8586 a = dir == Layout.DIR_LEFT_TO_RIGHT 8587 ? Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 8588 } else if (a == Layout.Alignment.ALIGN_OPPOSITE) { 8589 a = dir == Layout.DIR_LEFT_TO_RIGHT 8590 ? Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 8591 } 8592 8593 if (a == Layout.Alignment.ALIGN_CENTER) { 8594 /* 8595 * Keep centered if possible, or, if it is too wide to fit, 8596 * keep leading edge in view. 8597 */ 8598 8599 int left = (int) Math.floor(layout.getLineLeft(line)); 8600 int right = (int) Math.ceil(layout.getLineRight(line)); 8601 8602 if (right - left < hspace) { 8603 scrollx = (right + left) / 2 - hspace / 2; 8604 } else { 8605 if (dir < 0) { 8606 scrollx = right - hspace; 8607 } else { 8608 scrollx = left; 8609 } 8610 } 8611 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 8612 int right = (int) Math.ceil(layout.getLineRight(line)); 8613 scrollx = right - hspace; 8614 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 8615 scrollx = (int) Math.floor(layout.getLineLeft(line)); 8616 } 8617 8618 if (ht < vspace) { 8619 scrolly = 0; 8620 } else { 8621 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 8622 scrolly = ht - vspace; 8623 } else { 8624 scrolly = 0; 8625 } 8626 } 8627 8628 if (scrollx != mScrollX || scrolly != mScrollY) { 8629 scrollTo(scrollx, scrolly); 8630 return true; 8631 } else { 8632 return false; 8633 } 8634 } 8635 8636 /** 8637 * Move the point, specified by the offset, into the view if it is needed. 8638 * This has to be called after layout. Returns true if anything changed. 8639 */ 8640 public boolean bringPointIntoView(int offset) { 8641 if (isLayoutRequested()) { 8642 mDeferScroll = offset; 8643 return false; 8644 } 8645 boolean changed = false; 8646 8647 Layout layout = isShowingHint() ? mHintLayout : mLayout; 8648 8649 if (layout == null) return changed; 8650 8651 int line = layout.getLineForOffset(offset); 8652 8653 int grav; 8654 8655 switch (layout.getParagraphAlignment(line)) { 8656 case ALIGN_LEFT: 8657 grav = 1; 8658 break; 8659 case ALIGN_RIGHT: 8660 grav = -1; 8661 break; 8662 case ALIGN_NORMAL: 8663 grav = layout.getParagraphDirection(line); 8664 break; 8665 case ALIGN_OPPOSITE: 8666 grav = -layout.getParagraphDirection(line); 8667 break; 8668 case ALIGN_CENTER: 8669 default: 8670 grav = 0; 8671 break; 8672 } 8673 8674 // We only want to clamp the cursor to fit within the layout width 8675 // in left-to-right modes, because in a right to left alignment, 8676 // we want to scroll to keep the line-right on the screen, as other 8677 // lines are likely to have text flush with the right margin, which 8678 // we want to keep visible. 8679 // A better long-term solution would probably be to measure both 8680 // the full line and a blank-trimmed version, and, for example, use 8681 // the latter measurement for centering and right alignment, but for 8682 // the time being we only implement the cursor clamping in left to 8683 // right where it is most likely to be annoying. 8684 final boolean clamped = grav > 0; 8685 // FIXME: Is it okay to truncate this, or should we round? 8686 final int x = (int) layout.getPrimaryHorizontal(offset, clamped); 8687 final int top = layout.getLineTop(line); 8688 final int bottom = layout.getLineTop(line + 1); 8689 8690 int left = (int) Math.floor(layout.getLineLeft(line)); 8691 int right = (int) Math.ceil(layout.getLineRight(line)); 8692 int ht = layout.getHeight(); 8693 8694 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 8695 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 8696 if (!mHorizontallyScrolling && right - left > hspace && right > x) { 8697 // If cursor has been clamped, make sure we don't scroll. 8698 right = Math.max(x, left + hspace); 8699 } 8700 8701 int hslack = (bottom - top) / 2; 8702 int vslack = hslack; 8703 8704 if (vslack > vspace / 4) { 8705 vslack = vspace / 4; 8706 } 8707 if (hslack > hspace / 4) { 8708 hslack = hspace / 4; 8709 } 8710 8711 int hs = mScrollX; 8712 int vs = mScrollY; 8713 8714 if (top - vs < vslack) { 8715 vs = top - vslack; 8716 } 8717 if (bottom - vs > vspace - vslack) { 8718 vs = bottom - (vspace - vslack); 8719 } 8720 if (ht - vs < vspace) { 8721 vs = ht - vspace; 8722 } 8723 if (0 - vs > 0) { 8724 vs = 0; 8725 } 8726 8727 if (grav != 0) { 8728 if (x - hs < hslack) { 8729 hs = x - hslack; 8730 } 8731 if (x - hs > hspace - hslack) { 8732 hs = x - (hspace - hslack); 8733 } 8734 } 8735 8736 if (grav < 0) { 8737 if (left - hs > 0) { 8738 hs = left; 8739 } 8740 if (right - hs < hspace) { 8741 hs = right - hspace; 8742 } 8743 } else if (grav > 0) { 8744 if (right - hs < hspace) { 8745 hs = right - hspace; 8746 } 8747 if (left - hs > 0) { 8748 hs = left; 8749 } 8750 } else /* grav == 0 */ { 8751 if (right - left <= hspace) { 8752 /* 8753 * If the entire text fits, center it exactly. 8754 */ 8755 hs = left - (hspace - (right - left)) / 2; 8756 } else if (x > right - hslack) { 8757 /* 8758 * If we are near the right edge, keep the right edge 8759 * at the edge of the view. 8760 */ 8761 hs = right - hspace; 8762 } else if (x < left + hslack) { 8763 /* 8764 * If we are near the left edge, keep the left edge 8765 * at the edge of the view. 8766 */ 8767 hs = left; 8768 } else if (left > hs) { 8769 /* 8770 * Is there whitespace visible at the left? Fix it if so. 8771 */ 8772 hs = left; 8773 } else if (right < hs + hspace) { 8774 /* 8775 * Is there whitespace visible at the right? Fix it if so. 8776 */ 8777 hs = right - hspace; 8778 } else { 8779 /* 8780 * Otherwise, float as needed. 8781 */ 8782 if (x - hs < hslack) { 8783 hs = x - hslack; 8784 } 8785 if (x - hs > hspace - hslack) { 8786 hs = x - (hspace - hslack); 8787 } 8788 } 8789 } 8790 8791 if (hs != mScrollX || vs != mScrollY) { 8792 if (mScroller == null) { 8793 scrollTo(hs, vs); 8794 } else { 8795 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 8796 int dx = hs - mScrollX; 8797 int dy = vs - mScrollY; 8798 8799 if (duration > ANIMATED_SCROLL_GAP) { 8800 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 8801 awakenScrollBars(mScroller.getDuration()); 8802 invalidate(); 8803 } else { 8804 if (!mScroller.isFinished()) { 8805 mScroller.abortAnimation(); 8806 } 8807 8808 scrollBy(dx, dy); 8809 } 8810 8811 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 8812 } 8813 8814 changed = true; 8815 } 8816 8817 if (isFocused()) { 8818 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 8819 // requestRectangleOnScreen() is in terms of content coordinates. 8820 8821 // The offsets here are to ensure the rectangle we are using is 8822 // within our view bounds, in case the cursor is on the far left 8823 // or right. If it isn't withing the bounds, then this request 8824 // will be ignored. 8825 if (mTempRect == null) mTempRect = new Rect(); 8826 mTempRect.set(x - 2, top, x + 2, bottom); 8827 getInterestingRect(mTempRect, line); 8828 mTempRect.offset(mScrollX, mScrollY); 8829 8830 if (requestRectangleOnScreen(mTempRect)) { 8831 changed = true; 8832 } 8833 } 8834 8835 return changed; 8836 } 8837 8838 /** 8839 * Move the cursor, if needed, so that it is at an offset that is visible 8840 * to the user. This will not move the cursor if it represents more than 8841 * one character (a selection range). This will only work if the 8842 * TextView contains spannable text; otherwise it will do nothing. 8843 * 8844 * @return True if the cursor was actually moved, false otherwise. 8845 */ 8846 public boolean moveCursorToVisibleOffset() { 8847 if (!(mText instanceof Spannable)) { 8848 return false; 8849 } 8850 int start = getSelectionStart(); 8851 int end = getSelectionEnd(); 8852 if (start != end) { 8853 return false; 8854 } 8855 8856 // First: make sure the line is visible on screen: 8857 8858 int line = mLayout.getLineForOffset(start); 8859 8860 final int top = mLayout.getLineTop(line); 8861 final int bottom = mLayout.getLineTop(line + 1); 8862 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 8863 int vslack = (bottom - top) / 2; 8864 if (vslack > vspace / 4) { 8865 vslack = vspace / 4; 8866 } 8867 final int vs = mScrollY; 8868 8869 if (top < (vs + vslack)) { 8870 line = mLayout.getLineForVertical(vs + vslack + (bottom - top)); 8871 } else if (bottom > (vspace + vs - vslack)) { 8872 line = mLayout.getLineForVertical(vspace + vs - vslack - (bottom - top)); 8873 } 8874 8875 // Next: make sure the character is visible on screen: 8876 8877 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 8878 final int hs = mScrollX; 8879 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 8880 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace + hs); 8881 8882 // line might contain bidirectional text 8883 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 8884 final int highChar = leftChar > rightChar ? leftChar : rightChar; 8885 8886 int newStart = start; 8887 if (newStart < lowChar) { 8888 newStart = lowChar; 8889 } else if (newStart > highChar) { 8890 newStart = highChar; 8891 } 8892 8893 if (newStart != start) { 8894 Selection.setSelection((Spannable) mText, newStart); 8895 return true; 8896 } 8897 8898 return false; 8899 } 8900 8901 @Override 8902 public void computeScroll() { 8903 if (mScroller != null) { 8904 if (mScroller.computeScrollOffset()) { 8905 mScrollX = mScroller.getCurrX(); 8906 mScrollY = mScroller.getCurrY(); 8907 invalidateParentCaches(); 8908 postInvalidate(); // So we draw again 8909 } 8910 } 8911 } 8912 8913 private void getInterestingRect(Rect r, int line) { 8914 convertFromViewportToContentCoordinates(r); 8915 8916 // Rectangle can can be expanded on first and last line to take 8917 // padding into account. 8918 // TODO Take left/right padding into account too? 8919 if (line == 0) r.top -= getExtendedPaddingTop(); 8920 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 8921 } 8922 8923 private void convertFromViewportToContentCoordinates(Rect r) { 8924 final int horizontalOffset = viewportToContentHorizontalOffset(); 8925 r.left += horizontalOffset; 8926 r.right += horizontalOffset; 8927 8928 final int verticalOffset = viewportToContentVerticalOffset(); 8929 r.top += verticalOffset; 8930 r.bottom += verticalOffset; 8931 } 8932 8933 int viewportToContentHorizontalOffset() { 8934 return getCompoundPaddingLeft() - mScrollX; 8935 } 8936 8937 int viewportToContentVerticalOffset() { 8938 int offset = getExtendedPaddingTop() - mScrollY; 8939 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 8940 offset += getVerticalOffset(false); 8941 } 8942 return offset; 8943 } 8944 8945 @Override 8946 public void debug(int depth) { 8947 super.debug(depth); 8948 8949 String output = debugIndent(depth); 8950 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 8951 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 8952 + "} "; 8953 8954 if (mText != null) { 8955 8956 output += "mText=\"" + mText + "\" "; 8957 if (mLayout != null) { 8958 output += "mLayout width=" + mLayout.getWidth() 8959 + " height=" + mLayout.getHeight(); 8960 } 8961 } else { 8962 output += "mText=NULL"; 8963 } 8964 Log.d(VIEW_LOG_TAG, output); 8965 } 8966 8967 /** 8968 * Convenience for {@link Selection#getSelectionStart}. 8969 */ 8970 @ViewDebug.ExportedProperty(category = "text") 8971 public int getSelectionStart() { 8972 return Selection.getSelectionStart(getText()); 8973 } 8974 8975 /** 8976 * Convenience for {@link Selection#getSelectionEnd}. 8977 */ 8978 @ViewDebug.ExportedProperty(category = "text") 8979 public int getSelectionEnd() { 8980 return Selection.getSelectionEnd(getText()); 8981 } 8982 8983 /** 8984 * Return true iff there is a selection inside this text view. 8985 */ 8986 public boolean hasSelection() { 8987 final int selectionStart = getSelectionStart(); 8988 final int selectionEnd = getSelectionEnd(); 8989 8990 return selectionStart >= 0 && selectionStart != selectionEnd; 8991 } 8992 8993 String getSelectedText() { 8994 if (!hasSelection()) { 8995 return null; 8996 } 8997 8998 final int start = getSelectionStart(); 8999 final int end = getSelectionEnd(); 9000 return String.valueOf( 9001 start > end ? mText.subSequence(end, start) : mText.subSequence(start, end)); 9002 } 9003 9004 /** 9005 * Sets the properties of this field (lines, horizontally scrolling, 9006 * transformation method) to be for a single-line input. 9007 * 9008 * @attr ref android.R.styleable#TextView_singleLine 9009 */ 9010 public void setSingleLine() { 9011 setSingleLine(true); 9012 } 9013 9014 /** 9015 * Sets the properties of this field to transform input to ALL CAPS 9016 * display. This may use a "small caps" formatting if available. 9017 * This setting will be ignored if this field is editable or selectable. 9018 * 9019 * This call replaces the current transformation method. Disabling this 9020 * will not necessarily restore the previous behavior from before this 9021 * was enabled. 9022 * 9023 * @see #setTransformationMethod(TransformationMethod) 9024 * @attr ref android.R.styleable#TextView_textAllCaps 9025 */ 9026 public void setAllCaps(boolean allCaps) { 9027 if (allCaps) { 9028 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 9029 } else { 9030 setTransformationMethod(null); 9031 } 9032 } 9033 9034 /** 9035 * 9036 * Checks whether the transformation method applied to this TextView is set to ALL CAPS. This 9037 * settings is internally ignored if this field is editable or selectable. 9038 * @return Whether the current transformation method is for ALL CAPS. 9039 * 9040 * @see #setAllCaps(boolean) 9041 * @see #setTransformationMethod(TransformationMethod) 9042 */ 9043 public boolean isAllCaps() { 9044 final TransformationMethod method = getTransformationMethod(); 9045 return method != null && method instanceof AllCapsTransformationMethod; 9046 } 9047 9048 /** 9049 * If true, sets the properties of this field (number of lines, horizontally scrolling, 9050 * transformation method) to be for a single-line input; if false, restores these to the default 9051 * conditions. 9052 * 9053 * Note that the default conditions are not necessarily those that were in effect prior this 9054 * method, and you may want to reset these properties to your custom values. 9055 * 9056 * @attr ref android.R.styleable#TextView_singleLine 9057 */ 9058 @android.view.RemotableViewMethod 9059 public void setSingleLine(boolean singleLine) { 9060 // Could be used, but may break backward compatibility. 9061 // if (mSingleLine == singleLine) return; 9062 setInputTypeSingleLine(singleLine); 9063 applySingleLine(singleLine, true, true); 9064 } 9065 9066 /** 9067 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 9068 * @param singleLine 9069 */ 9070 private void setInputTypeSingleLine(boolean singleLine) { 9071 if (mEditor != null 9072 && (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) 9073 == EditorInfo.TYPE_CLASS_TEXT) { 9074 if (singleLine) { 9075 mEditor.mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 9076 } else { 9077 mEditor.mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 9078 } 9079 } 9080 } 9081 9082 private void applySingleLine(boolean singleLine, boolean applyTransformation, 9083 boolean changeMaxLines) { 9084 mSingleLine = singleLine; 9085 if (singleLine) { 9086 setLines(1); 9087 setHorizontallyScrolling(true); 9088 if (applyTransformation) { 9089 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 9090 } 9091 } else { 9092 if (changeMaxLines) { 9093 setMaxLines(Integer.MAX_VALUE); 9094 } 9095 setHorizontallyScrolling(false); 9096 if (applyTransformation) { 9097 setTransformationMethod(null); 9098 } 9099 } 9100 } 9101 9102 /** 9103 * Causes words in the text that are longer than the view's width 9104 * to be ellipsized instead of broken in the middle. You may also 9105 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 9106 * to constrain the text to a single line. Use <code>null</code> 9107 * to turn off ellipsizing. 9108 * 9109 * If {@link #setMaxLines} has been used to set two or more lines, 9110 * only {@link android.text.TextUtils.TruncateAt#END} and 9111 * {@link android.text.TextUtils.TruncateAt#MARQUEE} are supported 9112 * (other ellipsizing types will not do anything). 9113 * 9114 * @attr ref android.R.styleable#TextView_ellipsize 9115 */ 9116 public void setEllipsize(TextUtils.TruncateAt where) { 9117 // TruncateAt is an enum. != comparison is ok between these singleton objects. 9118 if (mEllipsize != where) { 9119 mEllipsize = where; 9120 9121 if (mLayout != null) { 9122 nullLayouts(); 9123 requestLayout(); 9124 invalidate(); 9125 } 9126 } 9127 } 9128 9129 /** 9130 * Sets how many times to repeat the marquee animation. Only applied if the 9131 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 9132 * 9133 * @see #getMarqueeRepeatLimit() 9134 * 9135 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 9136 */ 9137 public void setMarqueeRepeatLimit(int marqueeLimit) { 9138 mMarqueeRepeatLimit = marqueeLimit; 9139 } 9140 9141 /** 9142 * Gets the number of times the marquee animation is repeated. Only meaningful if the 9143 * TextView has marquee enabled. 9144 * 9145 * @return the number of times the marquee animation is repeated. -1 if the animation 9146 * repeats indefinitely 9147 * 9148 * @see #setMarqueeRepeatLimit(int) 9149 * 9150 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 9151 */ 9152 public int getMarqueeRepeatLimit() { 9153 return mMarqueeRepeatLimit; 9154 } 9155 9156 /** 9157 * Returns where, if anywhere, words that are longer than the view 9158 * is wide should be ellipsized. 9159 */ 9160 @ViewDebug.ExportedProperty 9161 public TextUtils.TruncateAt getEllipsize() { 9162 return mEllipsize; 9163 } 9164 9165 /** 9166 * Set the TextView so that when it takes focus, all the text is 9167 * selected. 9168 * 9169 * @attr ref android.R.styleable#TextView_selectAllOnFocus 9170 */ 9171 @android.view.RemotableViewMethod 9172 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 9173 createEditorIfNeeded(); 9174 mEditor.mSelectAllOnFocus = selectAllOnFocus; 9175 9176 if (selectAllOnFocus && !(mText instanceof Spannable)) { 9177 setText(mText, BufferType.SPANNABLE); 9178 } 9179 } 9180 9181 /** 9182 * Set whether the cursor is visible. The default is true. Note that this property only 9183 * makes sense for editable TextView. 9184 * 9185 * @see #isCursorVisible() 9186 * 9187 * @attr ref android.R.styleable#TextView_cursorVisible 9188 */ 9189 @android.view.RemotableViewMethod 9190 public void setCursorVisible(boolean visible) { 9191 if (visible && mEditor == null) return; // visible is the default value with no edit data 9192 createEditorIfNeeded(); 9193 if (mEditor.mCursorVisible != visible) { 9194 mEditor.mCursorVisible = visible; 9195 invalidate(); 9196 9197 mEditor.makeBlink(); 9198 9199 // InsertionPointCursorController depends on mCursorVisible 9200 mEditor.prepareCursorControllers(); 9201 } 9202 } 9203 9204 /** 9205 * @return whether or not the cursor is visible (assuming this TextView is editable) 9206 * 9207 * @see #setCursorVisible(boolean) 9208 * 9209 * @attr ref android.R.styleable#TextView_cursorVisible 9210 */ 9211 public boolean isCursorVisible() { 9212 // true is the default value 9213 return mEditor == null ? true : mEditor.mCursorVisible; 9214 } 9215 9216 private boolean canMarquee() { 9217 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 9218 return width > 0 && (mLayout.getLineWidth(0) > width 9219 || (mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null 9220 && mSavedMarqueeModeLayout.getLineWidth(0) > width)); 9221 } 9222 9223 private void startMarquee() { 9224 // Do not ellipsize EditText 9225 if (getKeyListener() != null) return; 9226 9227 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 9228 return; 9229 } 9230 9231 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) 9232 && getLineCount() == 1 && canMarquee()) { 9233 9234 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 9235 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE; 9236 final Layout tmp = mLayout; 9237 mLayout = mSavedMarqueeModeLayout; 9238 mSavedMarqueeModeLayout = tmp; 9239 setHorizontalFadingEdgeEnabled(true); 9240 requestLayout(); 9241 invalidate(); 9242 } 9243 9244 if (mMarquee == null) mMarquee = new Marquee(this); 9245 mMarquee.start(mMarqueeRepeatLimit); 9246 } 9247 } 9248 9249 private void stopMarquee() { 9250 if (mMarquee != null && !mMarquee.isStopped()) { 9251 mMarquee.stop(); 9252 } 9253 9254 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) { 9255 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 9256 final Layout tmp = mSavedMarqueeModeLayout; 9257 mSavedMarqueeModeLayout = mLayout; 9258 mLayout = tmp; 9259 setHorizontalFadingEdgeEnabled(false); 9260 requestLayout(); 9261 invalidate(); 9262 } 9263 } 9264 9265 private void startStopMarquee(boolean start) { 9266 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 9267 if (start) { 9268 startMarquee(); 9269 } else { 9270 stopMarquee(); 9271 } 9272 } 9273 } 9274 9275 /** 9276 * This method is called when the text is changed, in case any subclasses 9277 * would like to know. 9278 * 9279 * Within <code>text</code>, the <code>lengthAfter</code> characters 9280 * beginning at <code>start</code> have just replaced old text that had 9281 * length <code>lengthBefore</code>. It is an error to attempt to make 9282 * changes to <code>text</code> from this callback. 9283 * 9284 * @param text The text the TextView is displaying 9285 * @param start The offset of the start of the range of the text that was 9286 * modified 9287 * @param lengthBefore The length of the former text that has been replaced 9288 * @param lengthAfter The length of the replacement modified text 9289 */ 9290 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 9291 // intentionally empty, template pattern method can be overridden by subclasses 9292 } 9293 9294 /** 9295 * This method is called when the selection has changed, in case any 9296 * subclasses would like to know. 9297 * 9298 * @param selStart The new selection start location. 9299 * @param selEnd The new selection end location. 9300 */ 9301 protected void onSelectionChanged(int selStart, int selEnd) { 9302 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 9303 } 9304 9305 /** 9306 * Adds a TextWatcher to the list of those whose methods are called 9307 * whenever this TextView's text changes. 9308 * <p> 9309 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 9310 * not called after {@link #setText} calls. Now, doing {@link #setText} 9311 * if there are any text changed listeners forces the buffer type to 9312 * Editable if it would not otherwise be and does call this method. 9313 */ 9314 public void addTextChangedListener(TextWatcher watcher) { 9315 if (mListeners == null) { 9316 mListeners = new ArrayList<TextWatcher>(); 9317 } 9318 9319 mListeners.add(watcher); 9320 } 9321 9322 /** 9323 * Removes the specified TextWatcher from the list of those whose 9324 * methods are called 9325 * whenever this TextView's text changes. 9326 */ 9327 public void removeTextChangedListener(TextWatcher watcher) { 9328 if (mListeners != null) { 9329 int i = mListeners.indexOf(watcher); 9330 9331 if (i >= 0) { 9332 mListeners.remove(i); 9333 } 9334 } 9335 } 9336 9337 private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) { 9338 if (mListeners != null) { 9339 final ArrayList<TextWatcher> list = mListeners; 9340 final int count = list.size(); 9341 for (int i = 0; i < count; i++) { 9342 list.get(i).beforeTextChanged(text, start, before, after); 9343 } 9344 } 9345 9346 // The spans that are inside or intersect the modified region no longer make sense 9347 removeIntersectingNonAdjacentSpans(start, start + before, SpellCheckSpan.class); 9348 removeIntersectingNonAdjacentSpans(start, start + before, SuggestionSpan.class); 9349 } 9350 9351 // Removes all spans that are inside or actually overlap the start..end range 9352 private <T> void removeIntersectingNonAdjacentSpans(int start, int end, Class<T> type) { 9353 if (!(mText instanceof Editable)) return; 9354 Editable text = (Editable) mText; 9355 9356 T[] spans = text.getSpans(start, end, type); 9357 final int length = spans.length; 9358 for (int i = 0; i < length; i++) { 9359 final int spanStart = text.getSpanStart(spans[i]); 9360 final int spanEnd = text.getSpanEnd(spans[i]); 9361 if (spanEnd == start || spanStart == end) break; 9362 text.removeSpan(spans[i]); 9363 } 9364 } 9365 9366 void removeAdjacentSuggestionSpans(final int pos) { 9367 if (!(mText instanceof Editable)) return; 9368 final Editable text = (Editable) mText; 9369 9370 final SuggestionSpan[] spans = text.getSpans(pos, pos, SuggestionSpan.class); 9371 final int length = spans.length; 9372 for (int i = 0; i < length; i++) { 9373 final int spanStart = text.getSpanStart(spans[i]); 9374 final int spanEnd = text.getSpanEnd(spans[i]); 9375 if (spanEnd == pos || spanStart == pos) { 9376 if (SpellChecker.haveWordBoundariesChanged(text, pos, pos, spanStart, spanEnd)) { 9377 text.removeSpan(spans[i]); 9378 } 9379 } 9380 } 9381 } 9382 9383 /** 9384 * Not private so it can be called from an inner class without going 9385 * through a thunk. 9386 */ 9387 void sendOnTextChanged(CharSequence text, int start, int before, int after) { 9388 if (mListeners != null) { 9389 final ArrayList<TextWatcher> list = mListeners; 9390 final int count = list.size(); 9391 for (int i = 0; i < count; i++) { 9392 list.get(i).onTextChanged(text, start, before, after); 9393 } 9394 } 9395 9396 if (mEditor != null) mEditor.sendOnTextChanged(start, after); 9397 } 9398 9399 /** 9400 * Not private so it can be called from an inner class without going 9401 * through a thunk. 9402 */ 9403 void sendAfterTextChanged(Editable text) { 9404 if (mListeners != null) { 9405 final ArrayList<TextWatcher> list = mListeners; 9406 final int count = list.size(); 9407 for (int i = 0; i < count; i++) { 9408 list.get(i).afterTextChanged(text); 9409 } 9410 } 9411 9412 // Always notify AutoFillManager - it will return right away if autofill is disabled. 9413 notifyAutoFillManagerAfterTextChangedIfNeeded(); 9414 9415 hideErrorIfUnchanged(); 9416 } 9417 9418 private void notifyAutoFillManagerAfterTextChangedIfNeeded() { 9419 // It is important to not check whether the view is important for autofill 9420 // since the user can trigger autofill manually on not important views. 9421 if (!isAutofillable()) { 9422 return; 9423 } 9424 final AutofillManager afm = mContext.getSystemService(AutofillManager.class); 9425 if (afm != null) { 9426 if (DEBUG_AUTOFILL) { 9427 Log.v(LOG_TAG, "sendAfterTextChanged(): notify AFM for text=" + mText); 9428 } 9429 afm.notifyValueChanged(TextView.this); 9430 } 9431 } 9432 9433 private boolean isAutofillable() { 9434 // It is important to not check whether the view is important for autofill 9435 // since the user can trigger autofill manually on not important views. 9436 return getAutofillType() != AUTOFILL_TYPE_NONE; 9437 } 9438 9439 void updateAfterEdit() { 9440 invalidate(); 9441 int curs = getSelectionStart(); 9442 9443 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 9444 registerForPreDraw(); 9445 } 9446 9447 checkForResize(); 9448 9449 if (curs >= 0) { 9450 mHighlightPathBogus = true; 9451 if (mEditor != null) mEditor.makeBlink(); 9452 bringPointIntoView(curs); 9453 } 9454 } 9455 9456 /** 9457 * Not private so it can be called from an inner class without going 9458 * through a thunk. 9459 */ 9460 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 9461 sLastCutCopyOrTextChangedTime = 0; 9462 9463 final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState; 9464 if (ims == null || ims.mBatchEditNesting == 0) { 9465 updateAfterEdit(); 9466 } 9467 if (ims != null) { 9468 ims.mContentChanged = true; 9469 if (ims.mChangedStart < 0) { 9470 ims.mChangedStart = start; 9471 ims.mChangedEnd = start + before; 9472 } else { 9473 ims.mChangedStart = Math.min(ims.mChangedStart, start); 9474 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 9475 } 9476 ims.mChangedDelta += after - before; 9477 } 9478 resetErrorChangedFlag(); 9479 sendOnTextChanged(buffer, start, before, after); 9480 onTextChanged(buffer, start, before, after); 9481 } 9482 9483 /** 9484 * Not private so it can be called from an inner class without going 9485 * through a thunk. 9486 */ 9487 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 9488 // XXX Make the start and end move together if this ends up 9489 // spending too much time invalidating. 9490 9491 boolean selChanged = false; 9492 int newSelStart = -1, newSelEnd = -1; 9493 9494 final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState; 9495 9496 if (what == Selection.SELECTION_END) { 9497 selChanged = true; 9498 newSelEnd = newStart; 9499 9500 if (oldStart >= 0 || newStart >= 0) { 9501 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 9502 checkForResize(); 9503 registerForPreDraw(); 9504 if (mEditor != null) mEditor.makeBlink(); 9505 } 9506 } 9507 9508 if (what == Selection.SELECTION_START) { 9509 selChanged = true; 9510 newSelStart = newStart; 9511 9512 if (oldStart >= 0 || newStart >= 0) { 9513 int end = Selection.getSelectionEnd(buf); 9514 invalidateCursor(end, oldStart, newStart); 9515 } 9516 } 9517 9518 if (selChanged) { 9519 mHighlightPathBogus = true; 9520 if (mEditor != null && !isFocused()) mEditor.mSelectionMoved = true; 9521 9522 if ((buf.getSpanFlags(what) & Spanned.SPAN_INTERMEDIATE) == 0) { 9523 if (newSelStart < 0) { 9524 newSelStart = Selection.getSelectionStart(buf); 9525 } 9526 if (newSelEnd < 0) { 9527 newSelEnd = Selection.getSelectionEnd(buf); 9528 } 9529 9530 if (mEditor != null) { 9531 mEditor.refreshTextActionMode(); 9532 if (!hasSelection() 9533 && mEditor.getTextActionMode() == null && hasTransientState()) { 9534 // User generated selection has been removed. 9535 setHasTransientState(false); 9536 } 9537 } 9538 onSelectionChanged(newSelStart, newSelEnd); 9539 } 9540 } 9541 9542 if (what instanceof UpdateAppearance || what instanceof ParagraphStyle 9543 || what instanceof CharacterStyle) { 9544 if (ims == null || ims.mBatchEditNesting == 0) { 9545 invalidate(); 9546 mHighlightPathBogus = true; 9547 checkForResize(); 9548 } else { 9549 ims.mContentChanged = true; 9550 } 9551 if (mEditor != null) { 9552 if (oldStart >= 0) mEditor.invalidateTextDisplayList(mLayout, oldStart, oldEnd); 9553 if (newStart >= 0) mEditor.invalidateTextDisplayList(mLayout, newStart, newEnd); 9554 mEditor.invalidateHandlesAndActionMode(); 9555 } 9556 } 9557 9558 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 9559 mHighlightPathBogus = true; 9560 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 9561 ims.mSelectionModeChanged = true; 9562 } 9563 9564 if (Selection.getSelectionStart(buf) >= 0) { 9565 if (ims == null || ims.mBatchEditNesting == 0) { 9566 invalidateCursor(); 9567 } else { 9568 ims.mCursorChanged = true; 9569 } 9570 } 9571 } 9572 9573 if (what instanceof ParcelableSpan) { 9574 // If this is a span that can be sent to a remote process, 9575 // the current extract editor would be interested in it. 9576 if (ims != null && ims.mExtractedTextRequest != null) { 9577 if (ims.mBatchEditNesting != 0) { 9578 if (oldStart >= 0) { 9579 if (ims.mChangedStart > oldStart) { 9580 ims.mChangedStart = oldStart; 9581 } 9582 if (ims.mChangedStart > oldEnd) { 9583 ims.mChangedStart = oldEnd; 9584 } 9585 } 9586 if (newStart >= 0) { 9587 if (ims.mChangedStart > newStart) { 9588 ims.mChangedStart = newStart; 9589 } 9590 if (ims.mChangedStart > newEnd) { 9591 ims.mChangedStart = newEnd; 9592 } 9593 } 9594 } else { 9595 if (DEBUG_EXTRACT) { 9596 Log.v(LOG_TAG, "Span change outside of batch: " 9597 + oldStart + "-" + oldEnd + "," 9598 + newStart + "-" + newEnd + " " + what); 9599 } 9600 ims.mContentChanged = true; 9601 } 9602 } 9603 } 9604 9605 if (mEditor != null && mEditor.mSpellChecker != null && newStart < 0 9606 && what instanceof SpellCheckSpan) { 9607 mEditor.mSpellChecker.onSpellCheckSpanRemoved((SpellCheckSpan) what); 9608 } 9609 } 9610 9611 @Override 9612 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 9613 if (isTemporarilyDetached()) { 9614 // If we are temporarily in the detach state, then do nothing. 9615 super.onFocusChanged(focused, direction, previouslyFocusedRect); 9616 return; 9617 } 9618 9619 if (mEditor != null) mEditor.onFocusChanged(focused, direction); 9620 9621 if (focused) { 9622 if (mText instanceof Spannable) { 9623 Spannable sp = (Spannable) mText; 9624 MetaKeyKeyListener.resetMetaState(sp); 9625 } 9626 } 9627 9628 startStopMarquee(focused); 9629 9630 if (mTransformation != null) { 9631 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 9632 } 9633 9634 super.onFocusChanged(focused, direction, previouslyFocusedRect); 9635 } 9636 9637 @Override 9638 public void onWindowFocusChanged(boolean hasWindowFocus) { 9639 super.onWindowFocusChanged(hasWindowFocus); 9640 9641 if (mEditor != null) mEditor.onWindowFocusChanged(hasWindowFocus); 9642 9643 startStopMarquee(hasWindowFocus); 9644 } 9645 9646 @Override 9647 protected void onVisibilityChanged(View changedView, int visibility) { 9648 super.onVisibilityChanged(changedView, visibility); 9649 if (mEditor != null && visibility != VISIBLE) { 9650 mEditor.hideCursorAndSpanControllers(); 9651 stopTextActionMode(); 9652 } 9653 } 9654 9655 /** 9656 * Use {@link BaseInputConnection#removeComposingSpans 9657 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 9658 * state from this text view. 9659 */ 9660 public void clearComposingText() { 9661 if (mText instanceof Spannable) { 9662 BaseInputConnection.removeComposingSpans((Spannable) mText); 9663 } 9664 } 9665 9666 @Override 9667 public void setSelected(boolean selected) { 9668 boolean wasSelected = isSelected(); 9669 9670 super.setSelected(selected); 9671 9672 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 9673 if (selected) { 9674 startMarquee(); 9675 } else { 9676 stopMarquee(); 9677 } 9678 } 9679 } 9680 9681 @Override 9682 public boolean onTouchEvent(MotionEvent event) { 9683 final int action = event.getActionMasked(); 9684 if (mEditor != null) { 9685 mEditor.onTouchEvent(event); 9686 9687 if (mEditor.mSelectionModifierCursorController != null 9688 && mEditor.mSelectionModifierCursorController.isDragAcceleratorActive()) { 9689 return true; 9690 } 9691 } 9692 9693 final boolean superResult = super.onTouchEvent(event); 9694 9695 /* 9696 * Don't handle the release after a long press, because it will move the selection away from 9697 * whatever the menu action was trying to affect. If the long press should have triggered an 9698 * insertion action mode, we can now actually show it. 9699 */ 9700 if (mEditor != null && mEditor.mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 9701 mEditor.mDiscardNextActionUp = false; 9702 9703 if (mEditor.mIsInsertionActionModeStartPending) { 9704 mEditor.startInsertionActionMode(); 9705 mEditor.mIsInsertionActionModeStartPending = false; 9706 } 9707 return superResult; 9708 } 9709 9710 final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) 9711 && (mEditor == null || !mEditor.mIgnoreActionUpEvent) && isFocused(); 9712 9713 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 9714 && mText instanceof Spannable && mLayout != null) { 9715 boolean handled = false; 9716 9717 if (mMovement != null) { 9718 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 9719 } 9720 9721 final boolean textIsSelectable = isTextSelectable(); 9722 if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && textIsSelectable) { 9723 // The LinkMovementMethod which should handle taps on links has not been installed 9724 // on non editable text that support text selection. 9725 // We reproduce its behavior here to open links for these. 9726 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 9727 getSelectionEnd(), ClickableSpan.class); 9728 9729 if (links.length > 0) { 9730 links[0].onClick(this); 9731 handled = true; 9732 } 9733 } 9734 9735 if (touchIsFinished && (isTextEditable() || textIsSelectable)) { 9736 // Show the IME, except when selecting in read-only text. 9737 final InputMethodManager imm = InputMethodManager.peekInstance(); 9738 viewClicked(imm); 9739 if (isTextEditable() && mEditor.mShowSoftInputOnFocus && imm != null) { 9740 imm.showSoftInput(this, 0); 9741 } 9742 9743 // The above condition ensures that the mEditor is not null 9744 mEditor.onTouchUpEvent(event); 9745 9746 handled = true; 9747 } 9748 9749 if (handled) { 9750 return true; 9751 } 9752 } 9753 9754 return superResult; 9755 } 9756 9757 @Override 9758 public boolean onGenericMotionEvent(MotionEvent event) { 9759 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 9760 try { 9761 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 9762 return true; 9763 } 9764 } catch (AbstractMethodError ex) { 9765 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 9766 // Ignore its absence in case third party applications implemented the 9767 // interface directly. 9768 } 9769 } 9770 return super.onGenericMotionEvent(event); 9771 } 9772 9773 @Override 9774 protected void onCreateContextMenu(ContextMenu menu) { 9775 if (mEditor != null) { 9776 mEditor.onCreateContextMenu(menu); 9777 } 9778 } 9779 9780 @Override 9781 public boolean showContextMenu() { 9782 if (mEditor != null) { 9783 mEditor.setContextMenuAnchor(Float.NaN, Float.NaN); 9784 } 9785 return super.showContextMenu(); 9786 } 9787 9788 @Override 9789 public boolean showContextMenu(float x, float y) { 9790 if (mEditor != null) { 9791 mEditor.setContextMenuAnchor(x, y); 9792 } 9793 return super.showContextMenu(x, y); 9794 } 9795 9796 /** 9797 * @return True iff this TextView contains a text that can be edited, or if this is 9798 * a selectable TextView. 9799 */ 9800 boolean isTextEditable() { 9801 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 9802 } 9803 9804 /** 9805 * Returns true, only while processing a touch gesture, if the initial 9806 * touch down event caused focus to move to the text view and as a result 9807 * its selection changed. Only valid while processing the touch gesture 9808 * of interest, in an editable text view. 9809 */ 9810 public boolean didTouchFocusSelect() { 9811 return mEditor != null && mEditor.mTouchFocusSelected; 9812 } 9813 9814 @Override 9815 public void cancelLongPress() { 9816 super.cancelLongPress(); 9817 if (mEditor != null) mEditor.mIgnoreActionUpEvent = true; 9818 } 9819 9820 @Override 9821 public boolean onTrackballEvent(MotionEvent event) { 9822 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 9823 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 9824 return true; 9825 } 9826 } 9827 9828 return super.onTrackballEvent(event); 9829 } 9830 9831 /** 9832 * Sets the Scroller used for producing a scrolling animation 9833 * 9834 * @param s A Scroller instance 9835 */ 9836 public void setScroller(Scroller s) { 9837 mScroller = s; 9838 } 9839 9840 @Override 9841 protected float getLeftFadingEdgeStrength() { 9842 if (isMarqueeFadeEnabled() && mMarquee != null && !mMarquee.isStopped()) { 9843 final Marquee marquee = mMarquee; 9844 if (marquee.shouldDrawLeftFade()) { 9845 return getHorizontalFadingEdgeStrength(marquee.getScroll(), 0.0f); 9846 } else { 9847 return 0.0f; 9848 } 9849 } else if (getLineCount() == 1) { 9850 final float lineLeft = getLayout().getLineLeft(0); 9851 if (lineLeft > mScrollX) return 0.0f; 9852 return getHorizontalFadingEdgeStrength(mScrollX, lineLeft); 9853 } 9854 return super.getLeftFadingEdgeStrength(); 9855 } 9856 9857 @Override 9858 protected float getRightFadingEdgeStrength() { 9859 if (isMarqueeFadeEnabled() && mMarquee != null && !mMarquee.isStopped()) { 9860 final Marquee marquee = mMarquee; 9861 return getHorizontalFadingEdgeStrength(marquee.getMaxFadeScroll(), marquee.getScroll()); 9862 } else if (getLineCount() == 1) { 9863 final float rightEdge = mScrollX + 9864 (getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight()); 9865 final float lineRight = getLayout().getLineRight(0); 9866 if (lineRight < rightEdge) return 0.0f; 9867 return getHorizontalFadingEdgeStrength(rightEdge, lineRight); 9868 } 9869 return super.getRightFadingEdgeStrength(); 9870 } 9871 9872 /** 9873 * Calculates the fading edge strength as the ratio of the distance between two 9874 * horizontal positions to {@link View#getHorizontalFadingEdgeLength()}. Uses the absolute 9875 * value for the distance calculation. 9876 * 9877 * @param position1 A horizontal position. 9878 * @param position2 A horizontal position. 9879 * @return Fading edge strength between [0.0f, 1.0f]. 9880 */ 9881 @FloatRange(from = 0.0, to = 1.0) 9882 private float getHorizontalFadingEdgeStrength(float position1, float position2) { 9883 final int horizontalFadingEdgeLength = getHorizontalFadingEdgeLength(); 9884 if (horizontalFadingEdgeLength == 0) return 0.0f; 9885 final float diff = Math.abs(position1 - position2); 9886 if (diff > horizontalFadingEdgeLength) return 1.0f; 9887 return diff / horizontalFadingEdgeLength; 9888 } 9889 9890 private boolean isMarqueeFadeEnabled() { 9891 return mEllipsize == TextUtils.TruncateAt.MARQUEE 9892 && mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 9893 } 9894 9895 @Override 9896 protected int computeHorizontalScrollRange() { 9897 if (mLayout != null) { 9898 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT 9899 ? (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 9900 } 9901 9902 return super.computeHorizontalScrollRange(); 9903 } 9904 9905 @Override 9906 protected int computeVerticalScrollRange() { 9907 if (mLayout != null) { 9908 return mLayout.getHeight(); 9909 } 9910 return super.computeVerticalScrollRange(); 9911 } 9912 9913 @Override 9914 protected int computeVerticalScrollExtent() { 9915 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 9916 } 9917 9918 @Override 9919 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) { 9920 super.findViewsWithText(outViews, searched, flags); 9921 if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0 9922 && !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) { 9923 String searchedLowerCase = searched.toString().toLowerCase(); 9924 String textLowerCase = mText.toString().toLowerCase(); 9925 if (textLowerCase.contains(searchedLowerCase)) { 9926 outViews.add(this); 9927 } 9928 } 9929 } 9930 9931 /** 9932 * Type of the text buffer that defines the characteristics of the text such as static, 9933 * styleable, or editable. 9934 */ 9935 public enum BufferType { 9936 NORMAL, SPANNABLE, EDITABLE 9937 } 9938 9939 /** 9940 * Returns the TextView_textColor attribute from the TypedArray, if set, or 9941 * the TextAppearance_textColor from the TextView_textAppearance attribute, 9942 * if TextView_textColor was not set directly. 9943 * 9944 * @removed 9945 */ 9946 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 9947 if (attrs == null) { 9948 // Preserve behavior prior to removal of this API. 9949 throw new NullPointerException(); 9950 } 9951 9952 // It's not safe to use this method from apps. The parameter 'attrs' 9953 // must have been obtained using the TextView filter array which is not 9954 // available to the SDK. As such, we grab a default TypedArray with the 9955 // right filter instead here. 9956 final TypedArray a = context.obtainStyledAttributes(R.styleable.TextView); 9957 ColorStateList colors = a.getColorStateList(R.styleable.TextView_textColor); 9958 if (colors == null) { 9959 final int ap = a.getResourceId(R.styleable.TextView_textAppearance, 0); 9960 if (ap != 0) { 9961 final TypedArray appearance = context.obtainStyledAttributes( 9962 ap, R.styleable.TextAppearance); 9963 colors = appearance.getColorStateList(R.styleable.TextAppearance_textColor); 9964 appearance.recycle(); 9965 } 9966 } 9967 a.recycle(); 9968 9969 return colors; 9970 } 9971 9972 /** 9973 * Returns the default color from the TextView_textColor attribute from the 9974 * AttributeSet, if set, or the default color from the 9975 * TextAppearance_textColor from the TextView_textAppearance attribute, if 9976 * TextView_textColor was not set directly. 9977 * 9978 * @removed 9979 */ 9980 public static int getTextColor(Context context, TypedArray attrs, int def) { 9981 final ColorStateList colors = getTextColors(context, attrs); 9982 if (colors == null) { 9983 return def; 9984 } else { 9985 return colors.getDefaultColor(); 9986 } 9987 } 9988 9989 @Override 9990 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 9991 if (event.hasModifiers(KeyEvent.META_CTRL_ON)) { 9992 // Handle Ctrl-only shortcuts. 9993 switch (keyCode) { 9994 case KeyEvent.KEYCODE_A: 9995 if (canSelectText()) { 9996 return onTextContextMenuItem(ID_SELECT_ALL); 9997 } 9998 break; 9999 case KeyEvent.KEYCODE_Z: 10000 if (canUndo()) { 10001 return onTextContextMenuItem(ID_UNDO); 10002 } 10003 break; 10004 case KeyEvent.KEYCODE_X: 10005 if (canCut()) { 10006 return onTextContextMenuItem(ID_CUT); 10007 } 10008 break; 10009 case KeyEvent.KEYCODE_C: 10010 if (canCopy()) { 10011 return onTextContextMenuItem(ID_COPY); 10012 } 10013 break; 10014 case KeyEvent.KEYCODE_V: 10015 if (canPaste()) { 10016 return onTextContextMenuItem(ID_PASTE); 10017 } 10018 break; 10019 } 10020 } else if (event.hasModifiers(KeyEvent.META_CTRL_ON | KeyEvent.META_SHIFT_ON)) { 10021 // Handle Ctrl-Shift shortcuts. 10022 switch (keyCode) { 10023 case KeyEvent.KEYCODE_Z: 10024 if (canRedo()) { 10025 return onTextContextMenuItem(ID_REDO); 10026 } 10027 break; 10028 case KeyEvent.KEYCODE_V: 10029 if (canPaste()) { 10030 return onTextContextMenuItem(ID_PASTE_AS_PLAIN_TEXT); 10031 } 10032 } 10033 } 10034 return super.onKeyShortcut(keyCode, event); 10035 } 10036 10037 /** 10038 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 10039 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 10040 * a selection controller (see {@link Editor#prepareCursorControllers()}), but this is not 10041 * sufficient. 10042 */ 10043 boolean canSelectText() { 10044 return mText.length() != 0 && mEditor != null && mEditor.hasSelectionController(); 10045 } 10046 10047 /** 10048 * Test based on the <i>intrinsic</i> charateristics of the TextView. 10049 * The text must be spannable and the movement method must allow for arbitary selection. 10050 * 10051 * See also {@link #canSelectText()}. 10052 */ 10053 boolean textCanBeSelected() { 10054 // prepareCursorController() relies on this method. 10055 // If you change this condition, make sure prepareCursorController is called anywhere 10056 // the value of this condition might be changed. 10057 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 10058 return isTextEditable() 10059 || (isTextSelectable() && mText instanceof Spannable && isEnabled()); 10060 } 10061 10062 private Locale getTextServicesLocale(boolean allowNullLocale) { 10063 // Start fetching the text services locale asynchronously. 10064 updateTextServicesLocaleAsync(); 10065 // If !allowNullLocale and there is no cached text services locale, just return the default 10066 // locale. 10067 return (mCurrentSpellCheckerLocaleCache == null && !allowNullLocale) ? Locale.getDefault() 10068 : mCurrentSpellCheckerLocaleCache; 10069 } 10070 10071 /** 10072 * This is a temporary method. Future versions may support multi-locale text. 10073 * Caveat: This method may not return the latest text services locale, but this should be 10074 * acceptable and it's more important to make this method asynchronous. 10075 * 10076 * @return The locale that should be used for a word iterator 10077 * in this TextView, based on the current spell checker settings, 10078 * the current IME's locale, or the system default locale. 10079 * Please note that a word iterator in this TextView is different from another word iterator 10080 * used by SpellChecker.java of TextView. This method should be used for the former. 10081 * @hide 10082 */ 10083 // TODO: Support multi-locale 10084 // TODO: Update the text services locale immediately after the keyboard locale is switched 10085 // by catching intent of keyboard switch event 10086 public Locale getTextServicesLocale() { 10087 return getTextServicesLocale(false /* allowNullLocale */); 10088 } 10089 10090 /** 10091 * @return {@code true} if this TextView is specialized for showing and interacting with the 10092 * extracted text in a full-screen input method. 10093 * @hide 10094 */ 10095 public boolean isInExtractedMode() { 10096 return false; 10097 } 10098 10099 /** 10100 * @return {@code true} if this widget supports auto-sizing text and has been configured to 10101 * auto-size. 10102 */ 10103 private boolean isAutoSizeEnabled() { 10104 return supportsAutoSizeText() && mAutoSizeTextType != AUTO_SIZE_TEXT_TYPE_NONE; 10105 } 10106 10107 /** 10108 * @return {@code true} if this TextView supports auto-sizing text to fit within its container. 10109 * @hide 10110 */ 10111 protected boolean supportsAutoSizeText() { 10112 return true; 10113 } 10114 10115 /** 10116 * This is a temporary method. Future versions may support multi-locale text. 10117 * Caveat: This method may not return the latest spell checker locale, but this should be 10118 * acceptable and it's more important to make this method asynchronous. 10119 * 10120 * @return The locale that should be used for a spell checker in this TextView, 10121 * based on the current spell checker settings, the current IME's locale, or the system default 10122 * locale. 10123 * @hide 10124 */ 10125 public Locale getSpellCheckerLocale() { 10126 return getTextServicesLocale(true /* allowNullLocale */); 10127 } 10128 10129 private void updateTextServicesLocaleAsync() { 10130 // AsyncTask.execute() uses a serial executor which means we don't have 10131 // to lock around updateTextServicesLocaleLocked() to prevent it from 10132 // being executed n times in parallel. 10133 AsyncTask.execute(new Runnable() { 10134 @Override 10135 public void run() { 10136 updateTextServicesLocaleLocked(); 10137 } 10138 }); 10139 } 10140 10141 private void updateTextServicesLocaleLocked() { 10142 final TextServicesManager textServicesManager = (TextServicesManager) 10143 mContext.getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE); 10144 final SpellCheckerSubtype subtype = textServicesManager.getCurrentSpellCheckerSubtype(true); 10145 final Locale locale; 10146 if (subtype != null) { 10147 locale = subtype.getLocaleObject(); 10148 } else { 10149 locale = null; 10150 } 10151 mCurrentSpellCheckerLocaleCache = locale; 10152 } 10153 10154 void onLocaleChanged() { 10155 mEditor.onLocaleChanged(); 10156 } 10157 10158 /** 10159 * This method is used by the ArrowKeyMovementMethod to jump from one word to the other. 10160 * Made available to achieve a consistent behavior. 10161 * @hide 10162 */ 10163 public WordIterator getWordIterator() { 10164 if (mEditor != null) { 10165 return mEditor.getWordIterator(); 10166 } else { 10167 return null; 10168 } 10169 } 10170 10171 /** @hide */ 10172 @Override 10173 public void onPopulateAccessibilityEventInternal(AccessibilityEvent event) { 10174 super.onPopulateAccessibilityEventInternal(event); 10175 10176 final CharSequence text = getTextForAccessibility(); 10177 if (!TextUtils.isEmpty(text)) { 10178 event.getText().add(text); 10179 } 10180 } 10181 10182 @Override 10183 public CharSequence getAccessibilityClassName() { 10184 return TextView.class.getName(); 10185 } 10186 10187 @Override 10188 public void onProvideStructure(ViewStructure structure) { 10189 super.onProvideStructure(structure); 10190 onProvideAutoStructureForAssistOrAutofill(structure, false); 10191 } 10192 10193 @Override 10194 public void onProvideAutofillStructure(ViewStructure structure, int flags) { 10195 super.onProvideAutofillStructure(structure, flags); 10196 onProvideAutoStructureForAssistOrAutofill(structure, true); 10197 } 10198 10199 private void onProvideAutoStructureForAssistOrAutofill(ViewStructure structure, 10200 boolean forAutofill) { 10201 final boolean isPassword = hasPasswordTransformationMethod() 10202 || isPasswordInputType(getInputType()); 10203 if (forAutofill) { 10204 structure.setDataIsSensitive(!mTextFromResource); 10205 } 10206 10207 if (!isPassword || forAutofill) { 10208 if (mLayout == null) { 10209 assumeLayout(); 10210 } 10211 Layout layout = mLayout; 10212 final int lineCount = layout.getLineCount(); 10213 if (lineCount <= 1) { 10214 // Simple case: this is a single line. 10215 final CharSequence text = getText(); 10216 if (forAutofill) { 10217 structure.setText(text); 10218 } else { 10219 structure.setText(text, getSelectionStart(), getSelectionEnd()); 10220 } 10221 } else { 10222 // Complex case: multi-line, could be scrolled or within a scroll container 10223 // so some lines are not visible. 10224 final int[] tmpCords = new int[2]; 10225 getLocationInWindow(tmpCords); 10226 final int topWindowLocation = tmpCords[1]; 10227 View root = this; 10228 ViewParent viewParent = getParent(); 10229 while (viewParent instanceof View) { 10230 root = (View) viewParent; 10231 viewParent = root.getParent(); 10232 } 10233 final int windowHeight = root.getHeight(); 10234 final int topLine; 10235 final int bottomLine; 10236 if (topWindowLocation >= 0) { 10237 // The top of the view is fully within its window; start text at line 0. 10238 topLine = getLineAtCoordinateUnclamped(0); 10239 bottomLine = getLineAtCoordinateUnclamped(windowHeight - 1); 10240 } else { 10241 // The top of hte window has scrolled off the top of the window; figure out 10242 // the starting line for this. 10243 topLine = getLineAtCoordinateUnclamped(-topWindowLocation); 10244 bottomLine = getLineAtCoordinateUnclamped(windowHeight - 1 - topWindowLocation); 10245 } 10246 // We want to return some contextual lines above/below the lines that are 10247 // actually visible. 10248 int expandedTopLine = topLine - (bottomLine - topLine) / 2; 10249 if (expandedTopLine < 0) { 10250 expandedTopLine = 0; 10251 } 10252 int expandedBottomLine = bottomLine + (bottomLine - topLine) / 2; 10253 if (expandedBottomLine >= lineCount) { 10254 expandedBottomLine = lineCount - 1; 10255 } 10256 10257 // Convert lines into character offsets. 10258 int expandedTopChar = layout.getLineStart(expandedTopLine); 10259 int expandedBottomChar = layout.getLineEnd(expandedBottomLine); 10260 10261 // Take into account selection -- if there is a selection, we need to expand 10262 // the text we are returning to include that selection. 10263 final int selStart = getSelectionStart(); 10264 final int selEnd = getSelectionEnd(); 10265 if (selStart < selEnd) { 10266 if (selStart < expandedTopChar) { 10267 expandedTopChar = selStart; 10268 } 10269 if (selEnd > expandedBottomChar) { 10270 expandedBottomChar = selEnd; 10271 } 10272 } 10273 10274 // Get the text and trim it to the range we are reporting. 10275 CharSequence text = getText(); 10276 if (expandedTopChar > 0 || expandedBottomChar < text.length()) { 10277 text = text.subSequence(expandedTopChar, expandedBottomChar); 10278 } 10279 10280 if (forAutofill) { 10281 structure.setText(text); 10282 } else { 10283 structure.setText(text, selStart - expandedTopChar, selEnd - expandedTopChar); 10284 10285 final int[] lineOffsets = new int[bottomLine - topLine + 1]; 10286 final int[] lineBaselines = new int[bottomLine - topLine + 1]; 10287 final int baselineOffset = getBaselineOffset(); 10288 for (int i = topLine; i <= bottomLine; i++) { 10289 lineOffsets[i - topLine] = layout.getLineStart(i); 10290 lineBaselines[i - topLine] = layout.getLineBaseline(i) + baselineOffset; 10291 } 10292 structure.setTextLines(lineOffsets, lineBaselines); 10293 } 10294 } 10295 10296 if (!forAutofill) { 10297 // Extract style information that applies to the TextView as a whole. 10298 int style = 0; 10299 int typefaceStyle = getTypefaceStyle(); 10300 if ((typefaceStyle & Typeface.BOLD) != 0) { 10301 style |= AssistStructure.ViewNode.TEXT_STYLE_BOLD; 10302 } 10303 if ((typefaceStyle & Typeface.ITALIC) != 0) { 10304 style |= AssistStructure.ViewNode.TEXT_STYLE_ITALIC; 10305 } 10306 10307 // Global styles can also be set via TextView.setPaintFlags(). 10308 int paintFlags = mTextPaint.getFlags(); 10309 if ((paintFlags & Paint.FAKE_BOLD_TEXT_FLAG) != 0) { 10310 style |= AssistStructure.ViewNode.TEXT_STYLE_BOLD; 10311 } 10312 if ((paintFlags & Paint.UNDERLINE_TEXT_FLAG) != 0) { 10313 style |= AssistStructure.ViewNode.TEXT_STYLE_UNDERLINE; 10314 } 10315 if ((paintFlags & Paint.STRIKE_THRU_TEXT_FLAG) != 0) { 10316 style |= AssistStructure.ViewNode.TEXT_STYLE_STRIKE_THRU; 10317 } 10318 10319 // TextView does not have its own text background color. A background is either part 10320 // of the View (and can be any drawable) or a BackgroundColorSpan inside the text. 10321 structure.setTextStyle(getTextSize(), getCurrentTextColor(), 10322 AssistStructure.ViewNode.TEXT_COLOR_UNDEFINED /* bgColor */, style); 10323 } 10324 } 10325 structure.setHint(getHint()); 10326 structure.setInputType(getInputType()); 10327 } 10328 10329 boolean canRequestAutofill() { 10330 if (!isAutofillable()) { 10331 return false; 10332 } 10333 final AutofillManager afm = mContext.getSystemService(AutofillManager.class); 10334 if (afm != null) { 10335 return afm.isEnabled(); 10336 } 10337 return false; 10338 } 10339 10340 private void requestAutofill() { 10341 final AutofillManager afm = mContext.getSystemService(AutofillManager.class); 10342 if (afm != null) { 10343 afm.requestAutofill(this); 10344 } 10345 } 10346 10347 @Override 10348 public void autofill(AutofillValue value) { 10349 if (!value.isText() || !isTextEditable()) { 10350 Log.w(LOG_TAG, value + " could not be autofilled into " + this); 10351 return; 10352 } 10353 10354 final CharSequence autofilledValue = value.getTextValue(); 10355 10356 // First autofill it... 10357 setText(autofilledValue, mBufferType, true, 0); 10358 10359 // ...then move cursor to the end. 10360 final CharSequence text = getText(); 10361 if ((text instanceof Spannable)) { 10362 Selection.setSelection((Spannable) text, text.length()); 10363 } 10364 } 10365 10366 @Override 10367 public @AutofillType int getAutofillType() { 10368 return isTextEditable() ? AUTOFILL_TYPE_TEXT : AUTOFILL_TYPE_NONE; 10369 } 10370 10371 /** 10372 * Gets the {@link TextView}'s current text for AutoFill. The value is trimmed to 100K 10373 * {@code char}s if longer. 10374 * 10375 * @return current text, {@code null} if the text is not editable 10376 * 10377 * @see View#getAutofillValue() 10378 */ 10379 @Override 10380 @Nullable 10381 public AutofillValue getAutofillValue() { 10382 if (isTextEditable()) { 10383 final CharSequence text = TextUtils.trimToParcelableSize(getText()); 10384 return AutofillValue.forText(text); 10385 } 10386 return null; 10387 } 10388 10389 /** @hide */ 10390 @Override 10391 public void onInitializeAccessibilityEventInternal(AccessibilityEvent event) { 10392 super.onInitializeAccessibilityEventInternal(event); 10393 10394 final boolean isPassword = hasPasswordTransformationMethod(); 10395 event.setPassword(isPassword); 10396 10397 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 10398 event.setFromIndex(Selection.getSelectionStart(mText)); 10399 event.setToIndex(Selection.getSelectionEnd(mText)); 10400 event.setItemCount(mText.length()); 10401 } 10402 } 10403 10404 /** @hide */ 10405 @Override 10406 public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) { 10407 super.onInitializeAccessibilityNodeInfoInternal(info); 10408 10409 final boolean isPassword = hasPasswordTransformationMethod(); 10410 info.setPassword(isPassword); 10411 info.setText(getTextForAccessibility()); 10412 info.setHintText(mHint); 10413 info.setShowingHintText(isShowingHint()); 10414 10415 if (mBufferType == BufferType.EDITABLE) { 10416 info.setEditable(true); 10417 if (isEnabled()) { 10418 info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SET_TEXT); 10419 } 10420 } 10421 10422 if (mEditor != null) { 10423 info.setInputType(mEditor.mInputType); 10424 10425 if (mEditor.mError != null) { 10426 info.setContentInvalid(true); 10427 info.setError(mEditor.mError); 10428 } 10429 } 10430 10431 if (!TextUtils.isEmpty(mText)) { 10432 info.addAction(AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY); 10433 info.addAction(AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY); 10434 info.setMovementGranularities(AccessibilityNodeInfo.MOVEMENT_GRANULARITY_CHARACTER 10435 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_WORD 10436 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE 10437 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PARAGRAPH 10438 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE); 10439 info.addAction(AccessibilityNodeInfo.ACTION_SET_SELECTION); 10440 info.setAvailableExtraData( 10441 Arrays.asList(EXTRA_DATA_TEXT_CHARACTER_LOCATION_KEY)); 10442 } 10443 10444 if (isFocused()) { 10445 if (canCopy()) { 10446 info.addAction(AccessibilityNodeInfo.ACTION_COPY); 10447 } 10448 if (canPaste()) { 10449 info.addAction(AccessibilityNodeInfo.ACTION_PASTE); 10450 } 10451 if (canCut()) { 10452 info.addAction(AccessibilityNodeInfo.ACTION_CUT); 10453 } 10454 if (canShare()) { 10455 info.addAction(new AccessibilityNodeInfo.AccessibilityAction( 10456 ACCESSIBILITY_ACTION_SHARE, 10457 getResources().getString(com.android.internal.R.string.share))); 10458 } 10459 if (canProcessText()) { // also implies mEditor is not null. 10460 mEditor.mProcessTextIntentActionsHandler.onInitializeAccessibilityNodeInfo(info); 10461 } 10462 } 10463 10464 // Check for known input filter types. 10465 final int numFilters = mFilters.length; 10466 for (int i = 0; i < numFilters; i++) { 10467 final InputFilter filter = mFilters[i]; 10468 if (filter instanceof InputFilter.LengthFilter) { 10469 info.setMaxTextLength(((InputFilter.LengthFilter) filter).getMax()); 10470 } 10471 } 10472 10473 if (!isSingleLine()) { 10474 info.setMultiLine(true); 10475 } 10476 } 10477 10478 @Override 10479 public void addExtraDataToAccessibilityNodeInfo( 10480 AccessibilityNodeInfo info, String extraDataKey, Bundle arguments) { 10481 // The only extra data we support requires arguments. 10482 if (arguments == null) { 10483 return; 10484 } 10485 if (extraDataKey.equals(EXTRA_DATA_TEXT_CHARACTER_LOCATION_KEY)) { 10486 int positionInfoStartIndex = arguments.getInt( 10487 EXTRA_DATA_TEXT_CHARACTER_LOCATION_ARG_START_INDEX, -1); 10488 int positionInfoLength = arguments.getInt( 10489 EXTRA_DATA_TEXT_CHARACTER_LOCATION_ARG_LENGTH, -1); 10490 if ((positionInfoLength <= 0) || (positionInfoStartIndex < 0) 10491 || (positionInfoStartIndex >= mText.length())) { 10492 Log.e(LOG_TAG, "Invalid arguments for accessibility character locations"); 10493 return; 10494 } 10495 RectF[] boundingRects = new RectF[positionInfoLength]; 10496 final CursorAnchorInfo.Builder builder = new CursorAnchorInfo.Builder(); 10497 populateCharacterBounds(builder, positionInfoStartIndex, 10498 positionInfoStartIndex + positionInfoLength, 10499 viewportToContentHorizontalOffset(), viewportToContentVerticalOffset()); 10500 CursorAnchorInfo cursorAnchorInfo = builder.setMatrix(null).build(); 10501 for (int i = 0; i < positionInfoLength; i++) { 10502 int flags = cursorAnchorInfo.getCharacterBoundsFlags(positionInfoStartIndex + i); 10503 if ((flags & FLAG_HAS_VISIBLE_REGION) == FLAG_HAS_VISIBLE_REGION) { 10504 RectF bounds = cursorAnchorInfo 10505 .getCharacterBounds(positionInfoStartIndex + i); 10506 if (bounds != null) { 10507 mapRectFromViewToScreenCoords(bounds, true); 10508 boundingRects[i] = bounds; 10509 } 10510 } 10511 } 10512 info.getExtras().putParcelableArray(extraDataKey, boundingRects); 10513 } 10514 } 10515 10516 /** 10517 * Populate requested character bounds in a {@link CursorAnchorInfo.Builder} 10518 * 10519 * @param builder The builder to populate 10520 * @param startIndex The starting character index to populate 10521 * @param endIndex The ending character index to populate 10522 * @param viewportToContentHorizontalOffset The horizontal offset from the viewport to the 10523 * content 10524 * @param viewportToContentVerticalOffset The vertical offset from the viewport to the content 10525 * @hide 10526 */ 10527 public void populateCharacterBounds(CursorAnchorInfo.Builder builder, 10528 int startIndex, int endIndex, float viewportToContentHorizontalOffset, 10529 float viewportToContentVerticalOffset) { 10530 final int minLine = mLayout.getLineForOffset(startIndex); 10531 final int maxLine = mLayout.getLineForOffset(endIndex - 1); 10532 for (int line = minLine; line <= maxLine; ++line) { 10533 final int lineStart = mLayout.getLineStart(line); 10534 final int lineEnd = mLayout.getLineEnd(line); 10535 final int offsetStart = Math.max(lineStart, startIndex); 10536 final int offsetEnd = Math.min(lineEnd, endIndex); 10537 final boolean ltrLine = 10538 mLayout.getParagraphDirection(line) == Layout.DIR_LEFT_TO_RIGHT; 10539 final float[] widths = new float[offsetEnd - offsetStart]; 10540 mLayout.getPaint().getTextWidths(mText, offsetStart, offsetEnd, widths); 10541 final float top = mLayout.getLineTop(line); 10542 final float bottom = mLayout.getLineBottom(line); 10543 for (int offset = offsetStart; offset < offsetEnd; ++offset) { 10544 final float charWidth = widths[offset - offsetStart]; 10545 final boolean isRtl = mLayout.isRtlCharAt(offset); 10546 final float primary = mLayout.getPrimaryHorizontal(offset); 10547 final float secondary = mLayout.getSecondaryHorizontal(offset); 10548 // TODO: This doesn't work perfectly for text with custom styles and 10549 // TAB chars. 10550 final float left; 10551 final float right; 10552 if (ltrLine) { 10553 if (isRtl) { 10554 left = secondary - charWidth; 10555 right = secondary; 10556 } else { 10557 left = primary; 10558 right = primary + charWidth; 10559 } 10560 } else { 10561 if (!isRtl) { 10562 left = secondary; 10563 right = secondary + charWidth; 10564 } else { 10565 left = primary - charWidth; 10566 right = primary; 10567 } 10568 } 10569 // TODO: Check top-right and bottom-left as well. 10570 final float localLeft = left + viewportToContentHorizontalOffset; 10571 final float localRight = right + viewportToContentHorizontalOffset; 10572 final float localTop = top + viewportToContentVerticalOffset; 10573 final float localBottom = bottom + viewportToContentVerticalOffset; 10574 final boolean isTopLeftVisible = isPositionVisible(localLeft, localTop); 10575 final boolean isBottomRightVisible = 10576 isPositionVisible(localRight, localBottom); 10577 int characterBoundsFlags = 0; 10578 if (isTopLeftVisible || isBottomRightVisible) { 10579 characterBoundsFlags |= FLAG_HAS_VISIBLE_REGION; 10580 } 10581 if (!isTopLeftVisible || !isBottomRightVisible) { 10582 characterBoundsFlags |= CursorAnchorInfo.FLAG_HAS_INVISIBLE_REGION; 10583 } 10584 if (isRtl) { 10585 characterBoundsFlags |= CursorAnchorInfo.FLAG_IS_RTL; 10586 } 10587 // Here offset is the index in Java chars. 10588 builder.addCharacterBounds(offset, localLeft, localTop, localRight, 10589 localBottom, characterBoundsFlags); 10590 } 10591 } 10592 } 10593 10594 /** 10595 * @hide 10596 */ 10597 public boolean isPositionVisible(final float positionX, final float positionY) { 10598 synchronized (TEMP_POSITION) { 10599 final float[] position = TEMP_POSITION; 10600 position[0] = positionX; 10601 position[1] = positionY; 10602 View view = this; 10603 10604 while (view != null) { 10605 if (view != this) { 10606 // Local scroll is already taken into account in positionX/Y 10607 position[0] -= view.getScrollX(); 10608 position[1] -= view.getScrollY(); 10609 } 10610 10611 if (position[0] < 0 || position[1] < 0 || position[0] > view.getWidth() 10612 || position[1] > view.getHeight()) { 10613 return false; 10614 } 10615 10616 if (!view.getMatrix().isIdentity()) { 10617 view.getMatrix().mapPoints(position); 10618 } 10619 10620 position[0] += view.getLeft(); 10621 position[1] += view.getTop(); 10622 10623 final ViewParent parent = view.getParent(); 10624 if (parent instanceof View) { 10625 view = (View) parent; 10626 } else { 10627 // We've reached the ViewRoot, stop iterating 10628 view = null; 10629 } 10630 } 10631 } 10632 10633 // We've been able to walk up the view hierarchy and the position was never clipped 10634 return true; 10635 } 10636 10637 /** 10638 * Performs an accessibility action after it has been offered to the 10639 * delegate. 10640 * 10641 * @hide 10642 */ 10643 @Override 10644 public boolean performAccessibilityActionInternal(int action, Bundle arguments) { 10645 if (mEditor != null 10646 && mEditor.mProcessTextIntentActionsHandler.performAccessibilityAction(action)) { 10647 return true; 10648 } 10649 switch (action) { 10650 case AccessibilityNodeInfo.ACTION_CLICK: { 10651 return performAccessibilityActionClick(arguments); 10652 } 10653 case AccessibilityNodeInfo.ACTION_COPY: { 10654 if (isFocused() && canCopy()) { 10655 if (onTextContextMenuItem(ID_COPY)) { 10656 return true; 10657 } 10658 } 10659 } return false; 10660 case AccessibilityNodeInfo.ACTION_PASTE: { 10661 if (isFocused() && canPaste()) { 10662 if (onTextContextMenuItem(ID_PASTE)) { 10663 return true; 10664 } 10665 } 10666 } return false; 10667 case AccessibilityNodeInfo.ACTION_CUT: { 10668 if (isFocused() && canCut()) { 10669 if (onTextContextMenuItem(ID_CUT)) { 10670 return true; 10671 } 10672 } 10673 } return false; 10674 case AccessibilityNodeInfo.ACTION_SET_SELECTION: { 10675 ensureIterableTextForAccessibilitySelectable(); 10676 CharSequence text = getIterableTextForAccessibility(); 10677 if (text == null) { 10678 return false; 10679 } 10680 final int start = (arguments != null) ? arguments.getInt( 10681 AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_START_INT, -1) : -1; 10682 final int end = (arguments != null) ? arguments.getInt( 10683 AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_END_INT, -1) : -1; 10684 if ((getSelectionStart() != start || getSelectionEnd() != end)) { 10685 // No arguments clears the selection. 10686 if (start == end && end == -1) { 10687 Selection.removeSelection((Spannable) text); 10688 return true; 10689 } 10690 if (start >= 0 && start <= end && end <= text.length()) { 10691 Selection.setSelection((Spannable) text, start, end); 10692 // Make sure selection mode is engaged. 10693 if (mEditor != null) { 10694 mEditor.startSelectionActionModeAsync(false); 10695 } 10696 return true; 10697 } 10698 } 10699 } return false; 10700 case AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY: 10701 case AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY: { 10702 ensureIterableTextForAccessibilitySelectable(); 10703 return super.performAccessibilityActionInternal(action, arguments); 10704 } 10705 case ACCESSIBILITY_ACTION_SHARE: { 10706 if (isFocused() && canShare()) { 10707 if (onTextContextMenuItem(ID_SHARE)) { 10708 return true; 10709 } 10710 } 10711 } return false; 10712 case AccessibilityNodeInfo.ACTION_SET_TEXT: { 10713 if (!isEnabled() || (mBufferType != BufferType.EDITABLE)) { 10714 return false; 10715 } 10716 CharSequence text = (arguments != null) ? arguments.getCharSequence( 10717 AccessibilityNodeInfo.ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE) : null; 10718 setText(text); 10719 if (mText != null) { 10720 int updatedTextLength = mText.length(); 10721 if (updatedTextLength > 0) { 10722 Selection.setSelection((Spannable) mText, updatedTextLength); 10723 } 10724 } 10725 } return true; 10726 default: { 10727 return super.performAccessibilityActionInternal(action, arguments); 10728 } 10729 } 10730 } 10731 10732 private boolean performAccessibilityActionClick(Bundle arguments) { 10733 boolean handled = false; 10734 10735 if (!isEnabled()) { 10736 return false; 10737 } 10738 10739 if (isClickable() || isLongClickable()) { 10740 // Simulate View.onTouchEvent for an ACTION_UP event 10741 if (isFocusable() && !isFocused()) { 10742 requestFocus(); 10743 } 10744 10745 performClick(); 10746 handled = true; 10747 } 10748 10749 // Show the IME, except when selecting in read-only text. 10750 if ((mMovement != null || onCheckIsTextEditor()) && hasSpannableText() && mLayout != null 10751 && (isTextEditable() || isTextSelectable()) && isFocused()) { 10752 final InputMethodManager imm = InputMethodManager.peekInstance(); 10753 viewClicked(imm); 10754 if (!isTextSelectable() && mEditor.mShowSoftInputOnFocus && imm != null) { 10755 handled |= imm.showSoftInput(this, 0); 10756 } 10757 } 10758 10759 return handled; 10760 } 10761 10762 private boolean hasSpannableText() { 10763 return mText != null && mText instanceof Spannable; 10764 } 10765 10766 /** @hide */ 10767 @Override 10768 public void sendAccessibilityEventInternal(int eventType) { 10769 if (eventType == AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED && mEditor != null) { 10770 mEditor.mProcessTextIntentActionsHandler.initializeAccessibilityActions(); 10771 } 10772 10773 super.sendAccessibilityEventInternal(eventType); 10774 } 10775 10776 @Override 10777 public void sendAccessibilityEventUnchecked(AccessibilityEvent event) { 10778 // Do not send scroll events since first they are not interesting for 10779 // accessibility and second such events a generated too frequently. 10780 // For details see the implementation of bringTextIntoView(). 10781 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 10782 return; 10783 } 10784 super.sendAccessibilityEventUnchecked(event); 10785 } 10786 10787 /** 10788 * Returns the text that should be exposed to accessibility services. 10789 * <p> 10790 * This approximates what is displayed visually. If the user has specified 10791 * that accessibility services should speak passwords, this method will 10792 * bypass any password transformation method and return unobscured text. 10793 * 10794 * @return the text that should be exposed to accessibility services, may 10795 * be {@code null} if no text is set 10796 */ 10797 @Nullable 10798 private CharSequence getTextForAccessibility() { 10799 // If the text is empty, we must be showing the hint text. 10800 if (TextUtils.isEmpty(mText)) { 10801 return mHint; 10802 } 10803 10804 // Otherwise, return whatever text is being displayed. 10805 return TextUtils.trimToParcelableSize(mTransformed); 10806 } 10807 10808 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 10809 int fromIndex, int removedCount, int addedCount) { 10810 AccessibilityEvent event = 10811 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 10812 event.setFromIndex(fromIndex); 10813 event.setRemovedCount(removedCount); 10814 event.setAddedCount(addedCount); 10815 event.setBeforeText(beforeText); 10816 sendAccessibilityEventUnchecked(event); 10817 } 10818 10819 /** 10820 * Returns whether this text view is a current input method target. The 10821 * default implementation just checks with {@link InputMethodManager}. 10822 * @return True if the TextView is a current input method target; false otherwise. 10823 */ 10824 public boolean isInputMethodTarget() { 10825 InputMethodManager imm = InputMethodManager.peekInstance(); 10826 return imm != null && imm.isActive(this); 10827 } 10828 10829 static final int ID_SELECT_ALL = android.R.id.selectAll; 10830 static final int ID_UNDO = android.R.id.undo; 10831 static final int ID_REDO = android.R.id.redo; 10832 static final int ID_CUT = android.R.id.cut; 10833 static final int ID_COPY = android.R.id.copy; 10834 static final int ID_PASTE = android.R.id.paste; 10835 static final int ID_SHARE = android.R.id.shareText; 10836 static final int ID_PASTE_AS_PLAIN_TEXT = android.R.id.pasteAsPlainText; 10837 static final int ID_REPLACE = android.R.id.replaceText; 10838 static final int ID_ASSIST = android.R.id.textAssist; 10839 static final int ID_AUTOFILL = android.R.id.autofill; 10840 10841 /** 10842 * Called when a context menu option for the text view is selected. Currently 10843 * this will be one of {@link android.R.id#selectAll}, {@link android.R.id#cut}, 10844 * {@link android.R.id#copy}, {@link android.R.id#paste} or {@link android.R.id#shareText}. 10845 * 10846 * @return true if the context menu item action was performed. 10847 */ 10848 public boolean onTextContextMenuItem(int id) { 10849 int min = 0; 10850 int max = mText.length(); 10851 10852 if (isFocused()) { 10853 final int selStart = getSelectionStart(); 10854 final int selEnd = getSelectionEnd(); 10855 10856 min = Math.max(0, Math.min(selStart, selEnd)); 10857 max = Math.max(0, Math.max(selStart, selEnd)); 10858 } 10859 10860 switch (id) { 10861 case ID_SELECT_ALL: 10862 final boolean hadSelection = hasSelection(); 10863 selectAllText(); 10864 if (mEditor != null && hadSelection) { 10865 mEditor.invalidateActionModeAsync(); 10866 } 10867 return true; 10868 10869 case ID_UNDO: 10870 if (mEditor != null) { 10871 mEditor.undo(); 10872 } 10873 return true; // Returns true even if nothing was undone. 10874 10875 case ID_REDO: 10876 if (mEditor != null) { 10877 mEditor.redo(); 10878 } 10879 return true; // Returns true even if nothing was undone. 10880 10881 case ID_PASTE: 10882 paste(min, max, true /* withFormatting */); 10883 return true; 10884 10885 case ID_PASTE_AS_PLAIN_TEXT: 10886 paste(min, max, false /* withFormatting */); 10887 return true; 10888 10889 case ID_CUT: 10890 final ClipData cutData = ClipData.newPlainText(null, getTransformedText(min, max)); 10891 if (setPrimaryClip(cutData)) { 10892 deleteText_internal(min, max); 10893 } else { 10894 Toast.makeText(getContext(), 10895 com.android.internal.R.string.failed_to_copy_to_clipboard, 10896 Toast.LENGTH_SHORT).show(); 10897 } 10898 return true; 10899 10900 case ID_COPY: 10901 final ClipData copyData = ClipData.newPlainText(null, getTransformedText(min, max)); 10902 if (setPrimaryClip(copyData)) { 10903 stopTextActionMode(); 10904 } else { 10905 Toast.makeText(getContext(), 10906 com.android.internal.R.string.failed_to_copy_to_clipboard, 10907 Toast.LENGTH_SHORT).show(); 10908 } 10909 return true; 10910 10911 case ID_REPLACE: 10912 if (mEditor != null) { 10913 mEditor.replace(); 10914 } 10915 return true; 10916 10917 case ID_SHARE: 10918 shareSelectedText(); 10919 return true; 10920 10921 case ID_AUTOFILL: 10922 requestAutofill(); 10923 stopTextActionMode(); 10924 return true; 10925 } 10926 return false; 10927 } 10928 10929 CharSequence getTransformedText(int start, int end) { 10930 return removeSuggestionSpans(mTransformed.subSequence(start, end)); 10931 } 10932 10933 @Override 10934 public boolean performLongClick() { 10935 boolean handled = false; 10936 10937 if (mEditor != null) { 10938 mEditor.mIsBeingLongClicked = true; 10939 } 10940 10941 if (super.performLongClick()) { 10942 handled = true; 10943 } 10944 10945 if (mEditor != null) { 10946 handled |= mEditor.performLongClick(handled); 10947 mEditor.mIsBeingLongClicked = false; 10948 } 10949 10950 if (handled) { 10951 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 10952 if (mEditor != null) mEditor.mDiscardNextActionUp = true; 10953 } else { 10954 MetricsLogger.action( 10955 mContext, 10956 MetricsEvent.TEXT_LONGPRESS, 10957 TextViewMetrics.SUBTYPE_LONG_PRESS_OTHER); 10958 } 10959 10960 return handled; 10961 } 10962 10963 @Override 10964 protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) { 10965 super.onScrollChanged(horiz, vert, oldHoriz, oldVert); 10966 if (mEditor != null) { 10967 mEditor.onScrollChanged(); 10968 } 10969 } 10970 10971 /** 10972 * Return whether or not suggestions are enabled on this TextView. The suggestions are generated 10973 * by the IME or by the spell checker as the user types. This is done by adding 10974 * {@link SuggestionSpan}s to the text. 10975 * 10976 * When suggestions are enabled (default), this list of suggestions will be displayed when the 10977 * user asks for them on these parts of the text. This value depends on the inputType of this 10978 * TextView. 10979 * 10980 * The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}. 10981 * 10982 * In addition, the type variation must be one of 10983 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 10984 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 10985 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 10986 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 10987 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 10988 * 10989 * And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set. 10990 * 10991 * @return true if the suggestions popup window is enabled, based on the inputType. 10992 */ 10993 public boolean isSuggestionsEnabled() { 10994 if (mEditor == null) return false; 10995 if ((mEditor.mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) { 10996 return false; 10997 } 10998 if ((mEditor.mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false; 10999 11000 final int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 11001 return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL 11002 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT 11003 || variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE 11004 || variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE 11005 || variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT); 11006 } 11007 11008 /** 11009 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 11010 * selection is initiated in this View. 11011 * 11012 * <p>The standard implementation populates the menu with a subset of Select All, Cut, Copy, 11013 * Paste, Replace and Share actions, depending on what this View supports. 11014 * 11015 * <p>A custom implementation can add new entries in the default menu in its 11016 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, android.view.Menu)} 11017 * method. The default actions can also be removed from the menu using 11018 * {@link android.view.Menu#removeItem(int)} and passing {@link android.R.id#selectAll}, 11019 * {@link android.R.id#cut}, {@link android.R.id#copy}, {@link android.R.id#paste}, 11020 * {@link android.R.id#replaceText} or {@link android.R.id#shareText} ids as parameters. 11021 * 11022 * <p>Returning false from 11023 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, android.view.Menu)} 11024 * will prevent the action mode from being started. 11025 * 11026 * <p>Action click events should be handled by the custom implementation of 11027 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, 11028 * android.view.MenuItem)}. 11029 * 11030 * <p>Note that text selection mode is not started when a TextView receives focus and the 11031 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 11032 * that case, to allow for quick replacement. 11033 */ 11034 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 11035 createEditorIfNeeded(); 11036 mEditor.mCustomSelectionActionModeCallback = actionModeCallback; 11037 } 11038 11039 /** 11040 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 11041 * 11042 * @return The current custom selection callback. 11043 */ 11044 public ActionMode.Callback getCustomSelectionActionModeCallback() { 11045 return mEditor == null ? null : mEditor.mCustomSelectionActionModeCallback; 11046 } 11047 11048 /** 11049 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 11050 * insertion is initiated in this View. 11051 * The standard implementation populates the menu with a subset of Select All, 11052 * Paste and Replace actions, depending on what this View supports. 11053 * 11054 * <p>A custom implementation can add new entries in the default menu in its 11055 * {@link android.view.ActionMode.Callback#onPrepareActionMode(android.view.ActionMode, 11056 * android.view.Menu)} method. The default actions can also be removed from the menu using 11057 * {@link android.view.Menu#removeItem(int)} and passing {@link android.R.id#selectAll}, 11058 * {@link android.R.id#paste} or {@link android.R.id#replaceText} ids as parameters.</p> 11059 * 11060 * <p>Returning false from 11061 * {@link android.view.ActionMode.Callback#onCreateActionMode(android.view.ActionMode, 11062 * android.view.Menu)} will prevent the action mode from being started.</p> 11063 * 11064 * <p>Action click events should be handled by the custom implementation of 11065 * {@link android.view.ActionMode.Callback#onActionItemClicked(android.view.ActionMode, 11066 * android.view.MenuItem)}.</p> 11067 * 11068 * <p>Note that text insertion mode is not started when a TextView receives focus and the 11069 * {@link android.R.attr#selectAllOnFocus} flag has been set.</p> 11070 */ 11071 public void setCustomInsertionActionModeCallback(ActionMode.Callback actionModeCallback) { 11072 createEditorIfNeeded(); 11073 mEditor.mCustomInsertionActionModeCallback = actionModeCallback; 11074 } 11075 11076 /** 11077 * Retrieves the value set in {@link #setCustomInsertionActionModeCallback}. Default is null. 11078 * 11079 * @return The current custom insertion callback. 11080 */ 11081 public ActionMode.Callback getCustomInsertionActionModeCallback() { 11082 return mEditor == null ? null : mEditor.mCustomInsertionActionModeCallback; 11083 } 11084 11085 /** 11086 * Sets the {@link TextClassifier} for this TextView. 11087 */ 11088 public void setTextClassifier(@Nullable TextClassifier textClassifier) { 11089 mTextClassifier = textClassifier; 11090 } 11091 11092 /** 11093 * Returns the {@link TextClassifier} used by this TextView. 11094 * If no TextClassifier has been set, this TextView uses the default set by the 11095 * {@link TextClassificationManager}. 11096 */ 11097 @NonNull 11098 public TextClassifier getTextClassifier() { 11099 if (mTextClassifier == null) { 11100 TextClassificationManager tcm = 11101 mContext.getSystemService(TextClassificationManager.class); 11102 if (tcm != null) { 11103 mTextClassifier = tcm.getTextClassifier(); 11104 } else { 11105 mTextClassifier = TextClassifier.NO_OP; 11106 } 11107 } 11108 return mTextClassifier; 11109 } 11110 11111 /** 11112 * @hide 11113 */ 11114 protected void stopTextActionMode() { 11115 if (mEditor != null) { 11116 mEditor.stopTextActionMode(); 11117 } 11118 } 11119 11120 boolean canUndo() { 11121 return mEditor != null && mEditor.canUndo(); 11122 } 11123 11124 boolean canRedo() { 11125 return mEditor != null && mEditor.canRedo(); 11126 } 11127 11128 boolean canCut() { 11129 if (hasPasswordTransformationMethod()) { 11130 return false; 11131 } 11132 11133 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mEditor != null 11134 && mEditor.mKeyListener != null) { 11135 return true; 11136 } 11137 11138 return false; 11139 } 11140 11141 boolean canCopy() { 11142 if (hasPasswordTransformationMethod()) { 11143 return false; 11144 } 11145 11146 if (mText.length() > 0 && hasSelection() && mEditor != null) { 11147 return true; 11148 } 11149 11150 return false; 11151 } 11152 11153 boolean canShare() { 11154 if (!getContext().canStartActivityForResult() || !isDeviceProvisioned()) { 11155 return false; 11156 } 11157 return canCopy(); 11158 } 11159 11160 boolean isDeviceProvisioned() { 11161 if (mDeviceProvisionedState == DEVICE_PROVISIONED_UNKNOWN) { 11162 mDeviceProvisionedState = Settings.Global.getInt( 11163 mContext.getContentResolver(), Settings.Global.DEVICE_PROVISIONED, 0) != 0 11164 ? DEVICE_PROVISIONED_YES 11165 : DEVICE_PROVISIONED_NO; 11166 } 11167 return mDeviceProvisionedState == DEVICE_PROVISIONED_YES; 11168 } 11169 11170 boolean canPaste() { 11171 return (mText instanceof Editable 11172 && mEditor != null && mEditor.mKeyListener != null 11173 && getSelectionStart() >= 0 11174 && getSelectionEnd() >= 0 11175 && ((ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE)) 11176 .hasPrimaryClip()); 11177 } 11178 11179 boolean canPasteAsPlainText() { 11180 if (!canPaste()) { 11181 return false; 11182 } 11183 11184 final ClipData clipData = 11185 ((ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE)) 11186 .getPrimaryClip(); 11187 final ClipDescription description = clipData.getDescription(); 11188 final boolean isPlainType = description.hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 11189 final CharSequence text = clipData.getItemAt(0).getText(); 11190 if (isPlainType && (text instanceof Spanned)) { 11191 Spanned spanned = (Spanned) text; 11192 if (TextUtils.hasStyleSpan(spanned)) { 11193 return true; 11194 } 11195 } 11196 return description.hasMimeType(ClipDescription.MIMETYPE_TEXT_HTML); 11197 } 11198 11199 boolean canProcessText() { 11200 if (getId() == View.NO_ID) { 11201 return false; 11202 } 11203 return canShare(); 11204 } 11205 11206 boolean canSelectAllText() { 11207 return canSelectText() && !hasPasswordTransformationMethod() 11208 && !(getSelectionStart() == 0 && getSelectionEnd() == mText.length()); 11209 } 11210 11211 boolean selectAllText() { 11212 if (mEditor != null) { 11213 // Hide the toolbar before changing the selection to avoid flickering. 11214 mEditor.hideFloatingToolbar(FLOATING_TOOLBAR_SELECT_ALL_REFRESH_DELAY); 11215 } 11216 final int length = mText.length(); 11217 Selection.setSelection((Spannable) mText, 0, length); 11218 return length > 0; 11219 } 11220 11221 void replaceSelectionWithText(CharSequence text) { 11222 ((Editable) mText).replace(getSelectionStart(), getSelectionEnd(), text); 11223 } 11224 11225 /** 11226 * Paste clipboard content between min and max positions. 11227 */ 11228 private void paste(int min, int max, boolean withFormatting) { 11229 ClipboardManager clipboard = 11230 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 11231 ClipData clip = clipboard.getPrimaryClip(); 11232 if (clip != null) { 11233 boolean didFirst = false; 11234 for (int i = 0; i < clip.getItemCount(); i++) { 11235 final CharSequence paste; 11236 if (withFormatting) { 11237 paste = clip.getItemAt(i).coerceToStyledText(getContext()); 11238 } else { 11239 // Get an item as text and remove all spans by toString(). 11240 final CharSequence text = clip.getItemAt(i).coerceToText(getContext()); 11241 paste = (text instanceof Spanned) ? text.toString() : text; 11242 } 11243 if (paste != null) { 11244 if (!didFirst) { 11245 Selection.setSelection((Spannable) mText, max); 11246 ((Editable) mText).replace(min, max, paste); 11247 didFirst = true; 11248 } else { 11249 ((Editable) mText).insert(getSelectionEnd(), "\n"); 11250 ((Editable) mText).insert(getSelectionEnd(), paste); 11251 } 11252 } 11253 } 11254 sLastCutCopyOrTextChangedTime = 0; 11255 } 11256 } 11257 11258 private void shareSelectedText() { 11259 String selectedText = getSelectedText(); 11260 if (selectedText != null && !selectedText.isEmpty()) { 11261 Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND); 11262 sharingIntent.setType("text/plain"); 11263 sharingIntent.removeExtra(android.content.Intent.EXTRA_TEXT); 11264 selectedText = TextUtils.trimToParcelableSize(selectedText); 11265 sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, selectedText); 11266 getContext().startActivity(Intent.createChooser(sharingIntent, null)); 11267 Selection.setSelection((Spannable) mText, getSelectionEnd()); 11268 } 11269 } 11270 11271 @CheckResult 11272 private boolean setPrimaryClip(ClipData clip) { 11273 ClipboardManager clipboard = 11274 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 11275 try { 11276 clipboard.setPrimaryClip(clip); 11277 } catch (Throwable t) { 11278 return false; 11279 } 11280 sLastCutCopyOrTextChangedTime = SystemClock.uptimeMillis(); 11281 return true; 11282 } 11283 11284 /** 11285 * Get the character offset closest to the specified absolute position. A typical use case is to 11286 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 11287 * 11288 * @param x The horizontal absolute position of a point on screen 11289 * @param y The vertical absolute position of a point on screen 11290 * @return the character offset for the character whose position is closest to the specified 11291 * position. Returns -1 if there is no layout. 11292 */ 11293 public int getOffsetForPosition(float x, float y) { 11294 if (getLayout() == null) return -1; 11295 final int line = getLineAtCoordinate(y); 11296 final int offset = getOffsetAtCoordinate(line, x); 11297 return offset; 11298 } 11299 11300 float convertToLocalHorizontalCoordinate(float x) { 11301 x -= getTotalPaddingLeft(); 11302 // Clamp the position to inside of the view. 11303 x = Math.max(0.0f, x); 11304 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 11305 x += getScrollX(); 11306 return x; 11307 } 11308 11309 int getLineAtCoordinate(float y) { 11310 y -= getTotalPaddingTop(); 11311 // Clamp the position to inside of the view. 11312 y = Math.max(0.0f, y); 11313 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 11314 y += getScrollY(); 11315 return getLayout().getLineForVertical((int) y); 11316 } 11317 11318 int getLineAtCoordinateUnclamped(float y) { 11319 y -= getTotalPaddingTop(); 11320 y += getScrollY(); 11321 return getLayout().getLineForVertical((int) y); 11322 } 11323 11324 int getOffsetAtCoordinate(int line, float x) { 11325 x = convertToLocalHorizontalCoordinate(x); 11326 return getLayout().getOffsetForHorizontal(line, x); 11327 } 11328 11329 @Override 11330 public boolean onDragEvent(DragEvent event) { 11331 switch (event.getAction()) { 11332 case DragEvent.ACTION_DRAG_STARTED: 11333 return mEditor != null && mEditor.hasInsertionController(); 11334 11335 case DragEvent.ACTION_DRAG_ENTERED: 11336 TextView.this.requestFocus(); 11337 return true; 11338 11339 case DragEvent.ACTION_DRAG_LOCATION: 11340 if (mText instanceof Spannable) { 11341 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11342 Selection.setSelection((Spannable) mText, offset); 11343 } 11344 return true; 11345 11346 case DragEvent.ACTION_DROP: 11347 if (mEditor != null) mEditor.onDrop(event); 11348 return true; 11349 11350 case DragEvent.ACTION_DRAG_ENDED: 11351 case DragEvent.ACTION_DRAG_EXITED: 11352 default: 11353 return true; 11354 } 11355 } 11356 11357 boolean isInBatchEditMode() { 11358 if (mEditor == null) return false; 11359 final Editor.InputMethodState ims = mEditor.mInputMethodState; 11360 if (ims != null) { 11361 return ims.mBatchEditNesting > 0; 11362 } 11363 return mEditor.mInBatchEditControllers; 11364 } 11365 11366 @Override 11367 public void onRtlPropertiesChanged(int layoutDirection) { 11368 super.onRtlPropertiesChanged(layoutDirection); 11369 11370 final TextDirectionHeuristic newTextDir = getTextDirectionHeuristic(); 11371 if (mTextDir != newTextDir) { 11372 mTextDir = newTextDir; 11373 if (mLayout != null) { 11374 checkForRelayout(); 11375 } 11376 } 11377 } 11378 11379 /** 11380 * @hide 11381 */ 11382 protected TextDirectionHeuristic getTextDirectionHeuristic() { 11383 if (hasPasswordTransformationMethod()) { 11384 // passwords fields should be LTR 11385 return TextDirectionHeuristics.LTR; 11386 } 11387 11388 if (mEditor != null 11389 && (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) 11390 == EditorInfo.TYPE_CLASS_PHONE) { 11391 // Phone numbers must be in the direction of the locale's digits. Most locales have LTR 11392 // digits, but some locales, such as those written in the Adlam or N'Ko scripts, have 11393 // RTL digits. 11394 final DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(getTextLocale()); 11395 final String zero = symbols.getDigitStrings()[0]; 11396 // In case the zero digit is multi-codepoint, just use the first codepoint to determine 11397 // direction. 11398 final int firstCodepoint = zero.codePointAt(0); 11399 final byte digitDirection = Character.getDirectionality(firstCodepoint); 11400 if (digitDirection == Character.DIRECTIONALITY_RIGHT_TO_LEFT 11401 || digitDirection == Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC) { 11402 return TextDirectionHeuristics.RTL; 11403 } else { 11404 return TextDirectionHeuristics.LTR; 11405 } 11406 } 11407 11408 // Always need to resolve layout direction first 11409 final boolean defaultIsRtl = (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 11410 11411 // Now, we can select the heuristic 11412 switch (getTextDirection()) { 11413 default: 11414 case TEXT_DIRECTION_FIRST_STRONG: 11415 return (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 11416 TextDirectionHeuristics.FIRSTSTRONG_LTR); 11417 case TEXT_DIRECTION_ANY_RTL: 11418 return TextDirectionHeuristics.ANYRTL_LTR; 11419 case TEXT_DIRECTION_LTR: 11420 return TextDirectionHeuristics.LTR; 11421 case TEXT_DIRECTION_RTL: 11422 return TextDirectionHeuristics.RTL; 11423 case TEXT_DIRECTION_LOCALE: 11424 return TextDirectionHeuristics.LOCALE; 11425 case TEXT_DIRECTION_FIRST_STRONG_LTR: 11426 return TextDirectionHeuristics.FIRSTSTRONG_LTR; 11427 case TEXT_DIRECTION_FIRST_STRONG_RTL: 11428 return TextDirectionHeuristics.FIRSTSTRONG_RTL; 11429 } 11430 } 11431 11432 /** 11433 * @hide 11434 */ 11435 @Override 11436 public void onResolveDrawables(int layoutDirection) { 11437 // No need to resolve twice 11438 if (mLastLayoutDirection == layoutDirection) { 11439 return; 11440 } 11441 mLastLayoutDirection = layoutDirection; 11442 11443 // Resolve drawables 11444 if (mDrawables != null) { 11445 if (mDrawables.resolveWithLayoutDirection(layoutDirection)) { 11446 prepareDrawableForDisplay(mDrawables.mShowing[Drawables.LEFT]); 11447 prepareDrawableForDisplay(mDrawables.mShowing[Drawables.RIGHT]); 11448 applyCompoundDrawableTint(); 11449 } 11450 } 11451 } 11452 11453 /** 11454 * Prepares a drawable for display by propagating layout direction and 11455 * drawable state. 11456 * 11457 * @param dr the drawable to prepare 11458 */ 11459 private void prepareDrawableForDisplay(@Nullable Drawable dr) { 11460 if (dr == null) { 11461 return; 11462 } 11463 11464 dr.setLayoutDirection(getLayoutDirection()); 11465 11466 if (dr.isStateful()) { 11467 dr.setState(getDrawableState()); 11468 dr.jumpToCurrentState(); 11469 } 11470 } 11471 11472 /** 11473 * @hide 11474 */ 11475 protected void resetResolvedDrawables() { 11476 super.resetResolvedDrawables(); 11477 mLastLayoutDirection = -1; 11478 } 11479 11480 /** 11481 * @hide 11482 */ 11483 protected void viewClicked(InputMethodManager imm) { 11484 if (imm != null) { 11485 imm.viewClicked(this); 11486 } 11487 } 11488 11489 /** 11490 * Deletes the range of text [start, end[. 11491 * @hide 11492 */ 11493 protected void deleteText_internal(int start, int end) { 11494 ((Editable) mText).delete(start, end); 11495 } 11496 11497 /** 11498 * Replaces the range of text [start, end[ by replacement text 11499 * @hide 11500 */ 11501 protected void replaceText_internal(int start, int end, CharSequence text) { 11502 ((Editable) mText).replace(start, end, text); 11503 } 11504 11505 /** 11506 * Sets a span on the specified range of text 11507 * @hide 11508 */ 11509 protected void setSpan_internal(Object span, int start, int end, int flags) { 11510 ((Editable) mText).setSpan(span, start, end, flags); 11511 } 11512 11513 /** 11514 * Moves the cursor to the specified offset position in text 11515 * @hide 11516 */ 11517 protected void setCursorPosition_internal(int start, int end) { 11518 Selection.setSelection(((Editable) mText), start, end); 11519 } 11520 11521 /** 11522 * An Editor should be created as soon as any of the editable-specific fields (grouped 11523 * inside the Editor object) is assigned to a non-default value. 11524 * This method will create the Editor if needed. 11525 * 11526 * A standard TextView (as well as buttons, checkboxes...) should not qualify and hence will 11527 * have a null Editor, unlike an EditText. Inconsistent in-between states will have an 11528 * Editor for backward compatibility, as soon as one of these fields is assigned. 11529 * 11530 * Also note that for performance reasons, the mEditor is created when needed, but not 11531 * reset when no more edit-specific fields are needed. 11532 */ 11533 private void createEditorIfNeeded() { 11534 if (mEditor == null) { 11535 mEditor = new Editor(this); 11536 } 11537 } 11538 11539 /** 11540 * @hide 11541 */ 11542 @Override 11543 public CharSequence getIterableTextForAccessibility() { 11544 return mText; 11545 } 11546 11547 private void ensureIterableTextForAccessibilitySelectable() { 11548 if (!(mText instanceof Spannable)) { 11549 setText(mText, BufferType.SPANNABLE); 11550 } 11551 } 11552 11553 /** 11554 * @hide 11555 */ 11556 @Override 11557 public TextSegmentIterator getIteratorForGranularity(int granularity) { 11558 switch (granularity) { 11559 case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE: { 11560 Spannable text = (Spannable) getIterableTextForAccessibility(); 11561 if (!TextUtils.isEmpty(text) && getLayout() != null) { 11562 AccessibilityIterators.LineTextSegmentIterator iterator = 11563 AccessibilityIterators.LineTextSegmentIterator.getInstance(); 11564 iterator.initialize(text, getLayout()); 11565 return iterator; 11566 } 11567 } break; 11568 case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE: { 11569 Spannable text = (Spannable) getIterableTextForAccessibility(); 11570 if (!TextUtils.isEmpty(text) && getLayout() != null) { 11571 AccessibilityIterators.PageTextSegmentIterator iterator = 11572 AccessibilityIterators.PageTextSegmentIterator.getInstance(); 11573 iterator.initialize(this); 11574 return iterator; 11575 } 11576 } break; 11577 } 11578 return super.getIteratorForGranularity(granularity); 11579 } 11580 11581 /** 11582 * @hide 11583 */ 11584 @Override 11585 public int getAccessibilitySelectionStart() { 11586 return getSelectionStart(); 11587 } 11588 11589 /** 11590 * @hide 11591 */ 11592 public boolean isAccessibilitySelectionExtendable() { 11593 return true; 11594 } 11595 11596 /** 11597 * @hide 11598 */ 11599 @Override 11600 public int getAccessibilitySelectionEnd() { 11601 return getSelectionEnd(); 11602 } 11603 11604 /** 11605 * @hide 11606 */ 11607 @Override 11608 public void setAccessibilitySelection(int start, int end) { 11609 if (getAccessibilitySelectionStart() == start 11610 && getAccessibilitySelectionEnd() == end) { 11611 return; 11612 } 11613 CharSequence text = getIterableTextForAccessibility(); 11614 if (Math.min(start, end) >= 0 && Math.max(start, end) <= text.length()) { 11615 Selection.setSelection((Spannable) text, start, end); 11616 } else { 11617 Selection.removeSelection((Spannable) text); 11618 } 11619 // Hide all selection controllers used for adjusting selection 11620 // since we are doing so explicitlty by other means and these 11621 // controllers interact with how selection behaves. 11622 if (mEditor != null) { 11623 mEditor.hideCursorAndSpanControllers(); 11624 mEditor.stopTextActionMode(); 11625 } 11626 } 11627 11628 /** @hide */ 11629 @Override 11630 protected void encodeProperties(@NonNull ViewHierarchyEncoder stream) { 11631 super.encodeProperties(stream); 11632 11633 TruncateAt ellipsize = getEllipsize(); 11634 stream.addProperty("text:ellipsize", ellipsize == null ? null : ellipsize.name()); 11635 stream.addProperty("text:textSize", getTextSize()); 11636 stream.addProperty("text:scaledTextSize", getScaledTextSize()); 11637 stream.addProperty("text:typefaceStyle", getTypefaceStyle()); 11638 stream.addProperty("text:selectionStart", getSelectionStart()); 11639 stream.addProperty("text:selectionEnd", getSelectionEnd()); 11640 stream.addProperty("text:curTextColor", mCurTextColor); 11641 stream.addProperty("text:text", mText == null ? null : mText.toString()); 11642 stream.addProperty("text:gravity", mGravity); 11643 } 11644 11645 /** 11646 * User interface state that is stored by TextView for implementing 11647 * {@link View#onSaveInstanceState}. 11648 */ 11649 public static class SavedState extends BaseSavedState { 11650 int selStart = -1; 11651 int selEnd = -1; 11652 CharSequence text; 11653 boolean frozenWithFocus; 11654 CharSequence error; 11655 ParcelableParcel editorState; // Optional state from Editor. 11656 11657 SavedState(Parcelable superState) { 11658 super(superState); 11659 } 11660 11661 @Override 11662 public void writeToParcel(Parcel out, int flags) { 11663 super.writeToParcel(out, flags); 11664 out.writeInt(selStart); 11665 out.writeInt(selEnd); 11666 out.writeInt(frozenWithFocus ? 1 : 0); 11667 TextUtils.writeToParcel(text, out, flags); 11668 11669 if (error == null) { 11670 out.writeInt(0); 11671 } else { 11672 out.writeInt(1); 11673 TextUtils.writeToParcel(error, out, flags); 11674 } 11675 11676 if (editorState == null) { 11677 out.writeInt(0); 11678 } else { 11679 out.writeInt(1); 11680 editorState.writeToParcel(out, flags); 11681 } 11682 } 11683 11684 @Override 11685 public String toString() { 11686 String str = "TextView.SavedState{" 11687 + Integer.toHexString(System.identityHashCode(this)) 11688 + " start=" + selStart + " end=" + selEnd; 11689 if (text != null) { 11690 str += " text=" + text; 11691 } 11692 return str + "}"; 11693 } 11694 11695 @SuppressWarnings("hiding") 11696 public static final Parcelable.Creator<SavedState> CREATOR = 11697 new Parcelable.Creator<SavedState>() { 11698 public SavedState createFromParcel(Parcel in) { 11699 return new SavedState(in); 11700 } 11701 11702 public SavedState[] newArray(int size) { 11703 return new SavedState[size]; 11704 } 11705 }; 11706 11707 private SavedState(Parcel in) { 11708 super(in); 11709 selStart = in.readInt(); 11710 selEnd = in.readInt(); 11711 frozenWithFocus = (in.readInt() != 0); 11712 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 11713 11714 if (in.readInt() != 0) { 11715 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 11716 } 11717 11718 if (in.readInt() != 0) { 11719 editorState = ParcelableParcel.CREATOR.createFromParcel(in); 11720 } 11721 } 11722 } 11723 11724 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 11725 private char[] mChars; 11726 private int mStart, mLength; 11727 11728 public CharWrapper(char[] chars, int start, int len) { 11729 mChars = chars; 11730 mStart = start; 11731 mLength = len; 11732 } 11733 11734 /* package */ void set(char[] chars, int start, int len) { 11735 mChars = chars; 11736 mStart = start; 11737 mLength = len; 11738 } 11739 11740 public int length() { 11741 return mLength; 11742 } 11743 11744 public char charAt(int off) { 11745 return mChars[off + mStart]; 11746 } 11747 11748 @Override 11749 public String toString() { 11750 return new String(mChars, mStart, mLength); 11751 } 11752 11753 public CharSequence subSequence(int start, int end) { 11754 if (start < 0 || end < 0 || start > mLength || end > mLength) { 11755 throw new IndexOutOfBoundsException(start + ", " + end); 11756 } 11757 11758 return new String(mChars, start + mStart, end - start); 11759 } 11760 11761 public void getChars(int start, int end, char[] buf, int off) { 11762 if (start < 0 || end < 0 || start > mLength || end > mLength) { 11763 throw new IndexOutOfBoundsException(start + ", " + end); 11764 } 11765 11766 System.arraycopy(mChars, start + mStart, buf, off, end - start); 11767 } 11768 11769 @Override 11770 public void drawText(BaseCanvas c, int start, int end, 11771 float x, float y, Paint p) { 11772 c.drawText(mChars, start + mStart, end - start, x, y, p); 11773 } 11774 11775 @Override 11776 public void drawTextRun(BaseCanvas c, int start, int end, 11777 int contextStart, int contextEnd, float x, float y, boolean isRtl, Paint p) { 11778 int count = end - start; 11779 int contextCount = contextEnd - contextStart; 11780 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 11781 contextCount, x, y, isRtl, p); 11782 } 11783 11784 public float measureText(int start, int end, Paint p) { 11785 return p.measureText(mChars, start + mStart, end - start); 11786 } 11787 11788 public int getTextWidths(int start, int end, float[] widths, Paint p) { 11789 return p.getTextWidths(mChars, start + mStart, end - start, widths); 11790 } 11791 11792 public float getTextRunAdvances(int start, int end, int contextStart, 11793 int contextEnd, boolean isRtl, float[] advances, int advancesIndex, 11794 Paint p) { 11795 int count = end - start; 11796 int contextCount = contextEnd - contextStart; 11797 return p.getTextRunAdvances(mChars, start + mStart, count, 11798 contextStart + mStart, contextCount, isRtl, advances, 11799 advancesIndex); 11800 } 11801 11802 public int getTextRunCursor(int contextStart, int contextEnd, int dir, 11803 int offset, int cursorOpt, Paint p) { 11804 int contextCount = contextEnd - contextStart; 11805 return p.getTextRunCursor(mChars, contextStart + mStart, 11806 contextCount, dir, offset + mStart, cursorOpt); 11807 } 11808 } 11809 11810 private static final class Marquee { 11811 // TODO: Add an option to configure this 11812 private static final float MARQUEE_DELTA_MAX = 0.07f; 11813 private static final int MARQUEE_DELAY = 1200; 11814 private static final int MARQUEE_DP_PER_SECOND = 30; 11815 11816 private static final byte MARQUEE_STOPPED = 0x0; 11817 private static final byte MARQUEE_STARTING = 0x1; 11818 private static final byte MARQUEE_RUNNING = 0x2; 11819 11820 private final WeakReference<TextView> mView; 11821 private final Choreographer mChoreographer; 11822 11823 private byte mStatus = MARQUEE_STOPPED; 11824 private final float mPixelsPerSecond; 11825 private float mMaxScroll; 11826 private float mMaxFadeScroll; 11827 private float mGhostStart; 11828 private float mGhostOffset; 11829 private float mFadeStop; 11830 private int mRepeatLimit; 11831 11832 private float mScroll; 11833 private long mLastAnimationMs; 11834 11835 Marquee(TextView v) { 11836 final float density = v.getContext().getResources().getDisplayMetrics().density; 11837 mPixelsPerSecond = MARQUEE_DP_PER_SECOND * density; 11838 mView = new WeakReference<TextView>(v); 11839 mChoreographer = Choreographer.getInstance(); 11840 } 11841 11842 private Choreographer.FrameCallback mTickCallback = new Choreographer.FrameCallback() { 11843 @Override 11844 public void doFrame(long frameTimeNanos) { 11845 tick(); 11846 } 11847 }; 11848 11849 private Choreographer.FrameCallback mStartCallback = new Choreographer.FrameCallback() { 11850 @Override 11851 public void doFrame(long frameTimeNanos) { 11852 mStatus = MARQUEE_RUNNING; 11853 mLastAnimationMs = mChoreographer.getFrameTime(); 11854 tick(); 11855 } 11856 }; 11857 11858 private Choreographer.FrameCallback mRestartCallback = new Choreographer.FrameCallback() { 11859 @Override 11860 public void doFrame(long frameTimeNanos) { 11861 if (mStatus == MARQUEE_RUNNING) { 11862 if (mRepeatLimit >= 0) { 11863 mRepeatLimit--; 11864 } 11865 start(mRepeatLimit); 11866 } 11867 } 11868 }; 11869 11870 void tick() { 11871 if (mStatus != MARQUEE_RUNNING) { 11872 return; 11873 } 11874 11875 mChoreographer.removeFrameCallback(mTickCallback); 11876 11877 final TextView textView = mView.get(); 11878 if (textView != null && (textView.isFocused() || textView.isSelected())) { 11879 long currentMs = mChoreographer.getFrameTime(); 11880 long deltaMs = currentMs - mLastAnimationMs; 11881 mLastAnimationMs = currentMs; 11882 float deltaPx = deltaMs / 1000f * mPixelsPerSecond; 11883 mScroll += deltaPx; 11884 if (mScroll > mMaxScroll) { 11885 mScroll = mMaxScroll; 11886 mChoreographer.postFrameCallbackDelayed(mRestartCallback, MARQUEE_DELAY); 11887 } else { 11888 mChoreographer.postFrameCallback(mTickCallback); 11889 } 11890 textView.invalidate(); 11891 } 11892 } 11893 11894 void stop() { 11895 mStatus = MARQUEE_STOPPED; 11896 mChoreographer.removeFrameCallback(mStartCallback); 11897 mChoreographer.removeFrameCallback(mRestartCallback); 11898 mChoreographer.removeFrameCallback(mTickCallback); 11899 resetScroll(); 11900 } 11901 11902 private void resetScroll() { 11903 mScroll = 0.0f; 11904 final TextView textView = mView.get(); 11905 if (textView != null) textView.invalidate(); 11906 } 11907 11908 void start(int repeatLimit) { 11909 if (repeatLimit == 0) { 11910 stop(); 11911 return; 11912 } 11913 mRepeatLimit = repeatLimit; 11914 final TextView textView = mView.get(); 11915 if (textView != null && textView.mLayout != null) { 11916 mStatus = MARQUEE_STARTING; 11917 mScroll = 0.0f; 11918 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() 11919 - textView.getCompoundPaddingRight(); 11920 final float lineWidth = textView.mLayout.getLineWidth(0); 11921 final float gap = textWidth / 3.0f; 11922 mGhostStart = lineWidth - textWidth + gap; 11923 mMaxScroll = mGhostStart + textWidth; 11924 mGhostOffset = lineWidth + gap; 11925 mFadeStop = lineWidth + textWidth / 6.0f; 11926 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 11927 11928 textView.invalidate(); 11929 mChoreographer.postFrameCallback(mStartCallback); 11930 } 11931 } 11932 11933 float getGhostOffset() { 11934 return mGhostOffset; 11935 } 11936 11937 float getScroll() { 11938 return mScroll; 11939 } 11940 11941 float getMaxFadeScroll() { 11942 return mMaxFadeScroll; 11943 } 11944 11945 boolean shouldDrawLeftFade() { 11946 return mScroll <= mFadeStop; 11947 } 11948 11949 boolean shouldDrawGhost() { 11950 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 11951 } 11952 11953 boolean isRunning() { 11954 return mStatus == MARQUEE_RUNNING; 11955 } 11956 11957 boolean isStopped() { 11958 return mStatus == MARQUEE_STOPPED; 11959 } 11960 } 11961 11962 private class ChangeWatcher implements TextWatcher, SpanWatcher { 11963 11964 private CharSequence mBeforeText; 11965 11966 public void beforeTextChanged(CharSequence buffer, int start, 11967 int before, int after) { 11968 if (DEBUG_EXTRACT) { 11969 Log.v(LOG_TAG, "beforeTextChanged start=" + start 11970 + " before=" + before + " after=" + after + ": " + buffer); 11971 } 11972 11973 if (AccessibilityManager.getInstance(mContext).isEnabled() 11974 && !isPasswordInputType(getInputType()) && !hasPasswordTransformationMethod()) { 11975 mBeforeText = buffer.toString(); 11976 } 11977 11978 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 11979 } 11980 11981 public void onTextChanged(CharSequence buffer, int start, int before, int after) { 11982 if (DEBUG_EXTRACT) { 11983 Log.v(LOG_TAG, "onTextChanged start=" + start 11984 + " before=" + before + " after=" + after + ": " + buffer); 11985 } 11986 TextView.this.handleTextChanged(buffer, start, before, after); 11987 11988 if (AccessibilityManager.getInstance(mContext).isEnabled() 11989 && (isFocused() || isSelected() && isShown())) { 11990 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 11991 mBeforeText = null; 11992 } 11993 } 11994 11995 public void afterTextChanged(Editable buffer) { 11996 if (DEBUG_EXTRACT) { 11997 Log.v(LOG_TAG, "afterTextChanged: " + buffer); 11998 } 11999 TextView.this.sendAfterTextChanged(buffer); 12000 12001 if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) { 12002 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 12003 } 12004 } 12005 12006 public void onSpanChanged(Spannable buf, Object what, int s, int e, int st, int en) { 12007 if (DEBUG_EXTRACT) { 12008 Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 12009 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 12010 } 12011 TextView.this.spanChange(buf, what, s, st, e, en); 12012 } 12013 12014 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 12015 if (DEBUG_EXTRACT) { 12016 Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e + " what=" + what + ": " + buf); 12017 } 12018 TextView.this.spanChange(buf, what, -1, s, -1, e); 12019 } 12020 12021 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 12022 if (DEBUG_EXTRACT) { 12023 Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e + " what=" + what + ": " + buf); 12024 } 12025 TextView.this.spanChange(buf, what, s, -1, e, -1); 12026 } 12027 } 12028} 12029