TimePickerDialog.java revision 2e00aa34c051111529290cf23c6ba940c2c0c142
1/* 2 * Copyright (C) 2013 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 com.android.datetimepicker.time; 18 19import android.animation.ObjectAnimator; 20import android.annotation.SuppressLint; 21import android.app.ActionBar.LayoutParams; 22import android.app.DialogFragment; 23import android.content.Context; 24import android.content.res.Resources; 25import android.os.Bundle; 26import android.util.Log; 27import android.view.KeyCharacterMap; 28import android.view.KeyEvent; 29import android.view.LayoutInflater; 30import android.view.View; 31import android.view.View.OnClickListener; 32import android.view.View.OnKeyListener; 33import android.view.ViewGroup; 34import android.view.Window; 35import android.widget.RelativeLayout; 36import android.widget.TextView; 37 38import com.android.datetimepicker.R; 39import com.android.datetimepicker.Utils; 40import com.android.datetimepicker.time.RadialPickerLayout.OnValueSelectedListener; 41 42import java.text.DateFormatSymbols; 43import java.util.ArrayList; 44import java.util.Locale; 45 46/** 47 * Dialog to set a time. 48 */ 49public class TimePickerDialog extends DialogFragment implements OnValueSelectedListener{ 50 private static final String TAG = "TimePickerDialog"; 51 52 private static final String KEY_HOUR_OF_DAY = "hour_of_day"; 53 private static final String KEY_MINUTE = "minute"; 54 private static final String KEY_IS_24_HOUR_VIEW = "is_24_hour_view"; 55 private static final String KEY_CURRENT_ITEM_SHOWING = "current_item_showing"; 56 private static final String KEY_IN_KB_MODE = "in_kb_mode"; 57 private static final String KEY_TYPED_TIMES = "typed_times"; 58 59 public static final int HOUR_INDEX = 0; 60 public static final int MINUTE_INDEX = 1; 61 // NOT a real index for the purpose of what's showing. 62 public static final int AMPM_INDEX = 2; 63 // Also NOT a real index, just used for keyboard mode. 64 public static final int ENABLE_PICKER_INDEX = 3; 65 public static final int AM = 0; 66 public static final int PM = 1; 67 68 // Delay before starting the pulse animation, in ms. 69 private static final int PULSE_ANIMATOR_DELAY = 300; 70 71 private OnTimeSetListener mCallback; 72 73 private TextView mDoneButton; 74 private TextView mHourView; 75 private TextView mHourSpaceView; 76 private TextView mMinuteView; 77 private TextView mMinuteSpaceView; 78 private TextView mAmPmTextView; 79 private View mAmPmHitspace; 80 private RadialPickerLayout mTimePicker; 81 82 private int mBlue; 83 private int mBlack; 84 private String mAmText; 85 private String mPmText; 86 87 private boolean mAllowAutoAdvance; 88 private int mInitialHourOfDay; 89 private int mInitialMinute; 90 private boolean mIs24HourMode; 91 92 // For hardware IME input. 93 private char mPlaceholderText; 94 private String mDoublePlaceholderText; 95 private boolean mInKbMode; 96 private ArrayList<Integer> mTypedTimes; 97 private Node mLegalTimesTree; 98 private int mAmKeyCode; 99 private int mPmKeyCode; 100 101 // Accessibility strings. 102 private String mHourPickerDescription; 103 private String mSelectHours; 104 private String mMinutePickerDescription; 105 private String mSelectMinutes; 106 107 /** 108 * The callback interface used to indicate the user is done filling in 109 * the time (they clicked on the 'Set' button). 110 */ 111 public interface OnTimeSetListener { 112 113 /** 114 * @param view The view associated with this listener. 115 * @param hourOfDay The hour that was set. 116 * @param minute The minute that was set. 117 */ 118 void onTimeSet(RadialPickerLayout view, int hourOfDay, int minute); 119 } 120 121 public TimePickerDialog() { 122 // Empty constructor required for dialog fragment. 123 } 124 125 public TimePickerDialog(Context context, int theme, OnTimeSetListener callback, 126 int hourOfDay, int minute, boolean is24HourMode) { 127 // Empty constructor required for dialog fragment. 128 } 129 130 public static TimePickerDialog newInstance(OnTimeSetListener callback, 131 int hourOfDay, int minute, boolean is24HourMode) { 132 TimePickerDialog ret = new TimePickerDialog(); 133 ret.initialize(callback, hourOfDay, minute, is24HourMode); 134 return ret; 135 } 136 137 public void initialize(OnTimeSetListener callback, 138 int hourOfDay, int minute, boolean is24HourMode) { 139 mCallback = callback; 140 141 mInitialHourOfDay = hourOfDay; 142 mInitialMinute = minute; 143 mIs24HourMode = is24HourMode; 144 mInKbMode = false; 145 } 146 147 public void setOnTimeSetListener(OnTimeSetListener callback) { 148 mCallback = callback; 149 } 150 151 public void setStartTime(int hourOfDay, int minute) { 152 mInitialHourOfDay = hourOfDay; 153 mInitialMinute = minute; 154 mInKbMode = false; 155 } 156 157 @Override 158 public void onCreate(Bundle savedInstanceState) { 159 super.onCreate(savedInstanceState); 160 if (savedInstanceState != null && savedInstanceState.containsKey(KEY_HOUR_OF_DAY) 161 && savedInstanceState.containsKey(KEY_MINUTE) 162 && savedInstanceState.containsKey(KEY_IS_24_HOUR_VIEW)) { 163 mInitialHourOfDay = savedInstanceState.getInt(KEY_HOUR_OF_DAY); 164 mInitialMinute = savedInstanceState.getInt(KEY_MINUTE); 165 mIs24HourMode = savedInstanceState.getBoolean(KEY_IS_24_HOUR_VIEW); 166 mInKbMode = savedInstanceState.getBoolean(KEY_IN_KB_MODE); 167 } 168 } 169 170 @Override 171 public View onCreateView(LayoutInflater inflater, ViewGroup container, 172 Bundle savedInstanceState) { 173 getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE); 174 175 View view = inflater.inflate(R.layout.time_picker_dialog, null); 176 KeyboardListener keyboardListener = new KeyboardListener(); 177 view.findViewById(R.id.time_picker_dialog).setOnKeyListener(keyboardListener); 178 179 Resources res = getResources(); 180 mHourPickerDescription = res.getString(R.string.hour_picker_description); 181 mSelectHours = res.getString(R.string.select_hours); 182 mMinutePickerDescription = res.getString(R.string.minute_picker_description); 183 mSelectMinutes = res.getString(R.string.select_minutes); 184 mBlue = res.getColor(R.color.blue); 185 mBlack = res.getColor(R.color.numbers_text_color); 186 187 mHourView = (TextView) view.findViewById(R.id.hours); 188 mHourView.setOnKeyListener(keyboardListener); 189 mHourSpaceView = (TextView) view.findViewById(R.id.hour_space); 190 mMinuteSpaceView = (TextView) view.findViewById(R.id.minutes_space); 191 mMinuteView = (TextView) view.findViewById(R.id.minutes); 192 mMinuteView.setOnKeyListener(keyboardListener); 193 mAmPmTextView = (TextView) view.findViewById(R.id.ampm_label); 194 mAmPmTextView.setOnKeyListener(keyboardListener); 195 String[] amPmTexts = new DateFormatSymbols().getAmPmStrings(); 196 mAmText = amPmTexts[0]; 197 mPmText = amPmTexts[1]; 198 199 mTimePicker = (RadialPickerLayout) view.findViewById(R.id.time_picker); 200 mTimePicker.setOnValueSelectedListener(this); 201 mTimePicker.setOnKeyListener(keyboardListener); 202 mTimePicker.initialize(getActivity(), mInitialHourOfDay, mInitialMinute, mIs24HourMode); 203 int currentItemShowing = HOUR_INDEX; 204 if (savedInstanceState != null && 205 savedInstanceState.containsKey(KEY_CURRENT_ITEM_SHOWING)) { 206 currentItemShowing = savedInstanceState.getInt(KEY_CURRENT_ITEM_SHOWING); 207 } 208 setCurrentItemShowing(currentItemShowing, false, true, true); 209 mTimePicker.invalidate(); 210 211 mHourView.setOnClickListener(new OnClickListener() { 212 @Override 213 public void onClick(View v) { 214 setCurrentItemShowing(HOUR_INDEX, true, false, true); 215 mTimePicker.tryVibrate(); 216 } 217 }); 218 mMinuteView.setOnClickListener(new OnClickListener() { 219 @Override 220 public void onClick(View v) { 221 setCurrentItemShowing(MINUTE_INDEX, true, false, true); 222 mTimePicker.tryVibrate(); 223 } 224 }); 225 226 mDoneButton = (TextView) view.findViewById(R.id.done_button); 227 mDoneButton.setOnClickListener(new OnClickListener() { 228 @Override 229 public void onClick(View v) { 230 if (mInKbMode && isTypedTimeFullyLegal()) { 231 finishKbMode(false); 232 } else { 233 mTimePicker.tryVibrate(); 234 } 235 if (mCallback != null) { 236 mCallback.onTimeSet(mTimePicker, 237 mTimePicker.getHours(), mTimePicker.getMinutes()); 238 } 239 dismiss(); 240 } 241 }); 242 mDoneButton.setOnKeyListener(keyboardListener); 243 244 // Enable or disable the AM/PM view. 245 mAmPmHitspace = view.findViewById(R.id.ampm_hitspace); 246 if (mIs24HourMode) { 247 mAmPmTextView.setVisibility(View.GONE); 248 249 RelativeLayout.LayoutParams paramsSeparator = new RelativeLayout.LayoutParams( 250 LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 251 paramsSeparator.addRule(RelativeLayout.CENTER_IN_PARENT); 252 TextView separatorView = (TextView) view.findViewById(R.id.separator); 253 separatorView.setLayoutParams(paramsSeparator); 254 } else { 255 mAmPmTextView.setVisibility(View.VISIBLE); 256 updateAmPmDisplay(mInitialHourOfDay < 12? AM : PM); 257 mAmPmHitspace.setOnClickListener(new OnClickListener() { 258 @Override 259 public void onClick(View v) { 260 mTimePicker.tryVibrate(); 261 int amOrPm = mTimePicker.getIsCurrentlyAmOrPm(); 262 if (amOrPm == AM) { 263 amOrPm = PM; 264 } else if (amOrPm == PM){ 265 amOrPm = AM; 266 } 267 updateAmPmDisplay(amOrPm); 268 mTimePicker.setAmOrPm(amOrPm); 269 } 270 }); 271 } 272 273 mAllowAutoAdvance = true; 274 setHour(mInitialHourOfDay, true); 275 setMinute(mInitialMinute); 276 277 // Set up for keyboard mode. 278 mDoublePlaceholderText = res.getString(R.string.time_placeholder); 279 mPlaceholderText = mDoublePlaceholderText.charAt(0); 280 mAmKeyCode = mPmKeyCode = -1; 281 generateLegalTimesTree(); 282 if (mInKbMode) { 283 mTypedTimes = savedInstanceState.getIntegerArrayList(KEY_TYPED_TIMES); 284 tryStartingKbMode(-1); 285 mHourView.invalidate(); 286 } else if (mTypedTimes == null) { 287 mTypedTimes = new ArrayList<Integer>(); 288 } 289 290 return view; 291 } 292 293 private void updateAmPmDisplay(int amOrPm) { 294 if (amOrPm == AM) { 295 mAmPmTextView.setText(mAmText); 296 tryAccessibilityAnnounce(mAmText); 297 mAmPmHitspace.setContentDescription(mAmText); 298 } else if (amOrPm == PM){ 299 mAmPmTextView.setText(mPmText); 300 tryAccessibilityAnnounce(mPmText); 301 mAmPmHitspace.setContentDescription(mPmText); 302 } else { 303 mAmPmTextView.setText(mDoublePlaceholderText); 304 } 305 } 306 307 @Override 308 public void onSaveInstanceState(Bundle outState) { 309 if (mTimePicker != null) { 310 outState.putInt(KEY_HOUR_OF_DAY, mTimePicker.getHours()); 311 outState.putInt(KEY_MINUTE, mTimePicker.getMinutes()); 312 outState.putBoolean(KEY_IS_24_HOUR_VIEW, mIs24HourMode); 313 outState.putInt(KEY_CURRENT_ITEM_SHOWING, mTimePicker.getCurrentItemShowing()); 314 outState.putBoolean(KEY_IN_KB_MODE, mInKbMode); 315 if (mInKbMode) { 316 outState.putIntegerArrayList(KEY_TYPED_TIMES, mTypedTimes); 317 } 318 } 319 } 320 321 /** 322 * Called by the picker for updating the header display. 323 */ 324 @Override 325 public void onValueSelected(int pickerIndex, int newValue, boolean autoAdvance) { 326 if (pickerIndex == HOUR_INDEX) { 327 setHour(newValue, false); 328 String announcement = String.format("%d", newValue); 329 if (mAllowAutoAdvance && autoAdvance) { 330 setCurrentItemShowing(MINUTE_INDEX, true, true, false); 331 announcement += ". " + mSelectMinutes; 332 } 333 tryAccessibilityAnnounce(announcement); 334 } else if (pickerIndex == MINUTE_INDEX){ 335 setMinute(newValue); 336 } else if (pickerIndex == AMPM_INDEX) { 337 updateAmPmDisplay(newValue); 338 } else if (pickerIndex == ENABLE_PICKER_INDEX) { 339 if (!isTypedTimeFullyLegal()) { 340 mTypedTimes.clear(); 341 } 342 finishKbMode(true); 343 } 344 } 345 346 private void setHour(int value, boolean announce) { 347 String format; 348 if (mIs24HourMode) { 349 format = "%02d"; 350 } else { 351 format = "%d"; 352 value = value % 12; 353 if (value == 0) { 354 value = 12; 355 } 356 } 357 358 CharSequence text = String.format(format, value); 359 mHourView.setText(text); 360 mHourSpaceView.setText(text); 361 if (announce) { 362 tryAccessibilityAnnounce(text); 363 } 364 } 365 366 private void setMinute(int value) { 367 if (value == 60) { 368 value = 0; 369 } 370 CharSequence text = String.format(Locale.getDefault(), "%02d", value); 371 tryAccessibilityAnnounce(text); 372 mMinuteView.setText(text); 373 mMinuteSpaceView.setText(text); 374 } 375 376 // Show either Hours or Minutes. 377 private void setCurrentItemShowing(int index, boolean animateCircle, boolean delayLabelAnimate, 378 boolean announce) { 379 mTimePicker.setCurrentItemShowing(index, animateCircle); 380 381 TextView labelToAnimate; 382 if (index == HOUR_INDEX) { 383 int hours = mTimePicker.getHours(); 384 if (!mIs24HourMode) { 385 hours = hours % 12; 386 } 387 mTimePicker.setContentDescription(mHourPickerDescription+": "+hours); 388 if (announce) { 389 tryAccessibilityAnnounce(mSelectHours); 390 } 391 labelToAnimate = mHourView; 392 } else { 393 int minutes = mTimePicker.getMinutes(); 394 mTimePicker.setContentDescription(mMinutePickerDescription+": "+minutes); 395 if (announce) { 396 tryAccessibilityAnnounce(mSelectMinutes); 397 } 398 labelToAnimate = mMinuteView; 399 } 400 401 int hourColor = (index == HOUR_INDEX)? mBlue : mBlack; 402 int minuteColor = (index == MINUTE_INDEX)? mBlue : mBlack; 403 mHourView.setTextColor(hourColor); 404 mMinuteView.setTextColor(minuteColor); 405 406 ObjectAnimator pulseAnimator = Utils.getPulseAnimator(labelToAnimate, 0.85f, 1.1f); 407 if (delayLabelAnimate) { 408 pulseAnimator.setStartDelay(PULSE_ANIMATOR_DELAY); 409 } 410 pulseAnimator.start(); 411 } 412 413 /** 414 * Try to speak the specified text, for accessibility. Only available on JB or later. 415 * @param text 416 */ 417 @SuppressLint("NewApi") 418 private void tryAccessibilityAnnounce(CharSequence text) { 419 if (Utils.isJellybeanOrLater() && mTimePicker != null && text != null) { 420 mTimePicker.announceForAccessibility(text); 421 } 422 } 423 424 /** 425 * For keyboard mode, processes key events. 426 * @param keyCode the pressed key. 427 * @return true if the key was successfully processed, false otherwise. 428 */ 429 private boolean processKeyUp(int keyCode) { 430 if (keyCode == KeyEvent.KEYCODE_ESCAPE || keyCode == KeyEvent.KEYCODE_BACK) { 431 dismiss(); 432 return true; 433 } else if (keyCode == KeyEvent.KEYCODE_TAB) { 434 if(mInKbMode) { 435 if (isTypedTimeFullyLegal()) { 436 finishKbMode(true); 437 } 438 return true; 439 } 440 } else if (keyCode == KeyEvent.KEYCODE_ENTER) { 441 if (mInKbMode) { 442 if (!isTypedTimeFullyLegal()) { 443 return true; 444 } 445 finishKbMode(false); 446 } 447 if (mCallback != null) { 448 mCallback.onTimeSet(mTimePicker, 449 mTimePicker.getHours(), mTimePicker.getMinutes()); 450 } 451 dismiss(); 452 return true; 453 } else if (keyCode == KeyEvent.KEYCODE_DEL) { 454 if (mInKbMode) { 455 if (!mTypedTimes.isEmpty()) { 456 deleteLastTypedKey(); 457 updateDisplay(true); 458 } 459 } 460 } else if (keyCode == KeyEvent.KEYCODE_0 || keyCode == KeyEvent.KEYCODE_1 461 || keyCode == KeyEvent.KEYCODE_2 || keyCode == KeyEvent.KEYCODE_3 462 || keyCode == KeyEvent.KEYCODE_4 || keyCode == KeyEvent.KEYCODE_5 463 || keyCode == KeyEvent.KEYCODE_6 || keyCode == KeyEvent.KEYCODE_7 464 || keyCode == KeyEvent.KEYCODE_8 || keyCode == KeyEvent.KEYCODE_9 465 || (!mIs24HourMode && 466 (keyCode == getAmOrPmKeyCode(AM) || keyCode == getAmOrPmKeyCode(PM)))) { 467 if (!mInKbMode) { 468 if (mTimePicker == null) { 469 // Something's wrong, because time picker should definitely not be null. 470 Log.e(TAG, "Unable to initiate keyboard mode, TimePicker was null."); 471 return true; 472 } 473 mTypedTimes.clear(); 474 tryStartingKbMode(keyCode); 475 return true; 476 } 477 // We're already in keyboard mode. 478 if (addKeyIfLegal(keyCode)) { 479 updateDisplay(false); 480 } 481 return true; 482 } 483 return false; 484 } 485 486 /** 487 * Try to start keyboard mode with the specified key, as long as the timepicker is not in the 488 * middle of a touch-event. 489 * @param keyCode The key to use as the first press. Keyboard mode will not be started if the 490 * key is not legal to start with. Or, pass in -1 to get into keyboard mode without a starting 491 * key. 492 */ 493 private void tryStartingKbMode(int keyCode) { 494 if (mTimePicker.trySettingInputEnabled(false) && 495 (keyCode == -1 || addKeyIfLegal(keyCode))) { 496 mInKbMode = true; 497 mDoneButton.setEnabled(false); 498 updateDisplay(false); 499 } 500 } 501 502 private boolean addKeyIfLegal(int keyCode) { 503 // If we're in 24hour mode, we'll need to check if the input is full. If in AM/PM mode, 504 // we'll need to see if AM/PM have been typed. 505 if ((mIs24HourMode && mTypedTimes.size() == 4) || 506 (!mIs24HourMode && isTypedTimeFullyLegal())) { 507 return false; 508 } 509 510 mTypedTimes.add(keyCode); 511 if (!isTypedTimeLegalSoFar()) { 512 deleteLastTypedKey(); 513 return false; 514 } 515 516 // Automatically fill in 0's if AM or PM was legally entered. 517 if (isTypedTimeFullyLegal()) { 518 if (!mIs24HourMode && mTypedTimes.size() <= 3) { 519 mTypedTimes.add(mTypedTimes.size() - 1, KeyEvent.KEYCODE_0); 520 mTypedTimes.add(mTypedTimes.size() - 1, KeyEvent.KEYCODE_0); 521 } 522 mDoneButton.setEnabled(true); 523 } 524 525 return true; 526 } 527 528 /** 529 * Traverse the tree to see if the keys that have been typed so far are legal as is, 530 * or may become legal as more keys are typed (excluding backspace). 531 */ 532 private boolean isTypedTimeLegalSoFar() { 533 Node node = mLegalTimesTree; 534 for (int keyCode : mTypedTimes) { 535 node = node.canReach(keyCode); 536 if (node == null) { 537 return false; 538 } 539 } 540 return true; 541 } 542 543 /** 544 * Check if the time that has been typed so far is completely legal, as is. 545 */ 546 private boolean isTypedTimeFullyLegal() { 547 if (mIs24HourMode) { 548 // For 24-hour mode, the time is legal if the hours and minutes are each legal. Note: 549 // getEnteredTime() will ONLY call isTypedTimeFullyLegal() when NOT in 24hour mode. 550 int[] values = getEnteredTime(null); 551 return (values[0] >= 0 && values[1] >= 0 && values[1] < 60); 552 } else { 553 // For AM/PM mode, the time is legal if it contains an AM or PM, as those can only be 554 // legally added at specific times based on the tree's algorithm. 555 return (mTypedTimes.contains(getAmOrPmKeyCode(AM)) || 556 mTypedTimes.contains(getAmOrPmKeyCode(PM))); 557 } 558 } 559 560 private void deleteLastTypedKey() { 561 mTypedTimes.remove(mTypedTimes.size() - 1); 562 if (!isTypedTimeFullyLegal()) { 563 mDoneButton.setEnabled(false); 564 } 565 } 566 567 /** 568 * Get out of keyboard mode. If there is nothing in typedTimes, revert to TimePicker's time. 569 * @param changeDisplays If true, update the displays with the relevant time. 570 */ 571 private void finishKbMode(boolean updateDisplays) { 572 mInKbMode = false; 573 if (!mTypedTimes.isEmpty()) { 574 int values[] = getEnteredTime(null); 575 mTimePicker.setTime(values[0], values[1]); 576 if (!mIs24HourMode) { 577 mTimePicker.setAmOrPm(values[2]); 578 } 579 mTypedTimes.clear(); 580 } 581 if (updateDisplays) { 582 updateDisplay(false); 583 mTimePicker.trySettingInputEnabled(true); 584 } 585 } 586 587 /** 588 * Update the hours, minutes, and AM/PM displays with the typed times. If the typedTimes is 589 * empty, either show an empty display (filled with the placeholder text), or update from the 590 * timepicker's values. 591 * @param allowEmptyDisplay if true, then if the typedTimes is empty, use the placeholder text. 592 * Otherwise, revert to the timepicker's values. 593 */ 594 private void updateDisplay(boolean allowEmptyDisplay) { 595 if (!allowEmptyDisplay && mTypedTimes.isEmpty()) { 596 int hour = mTimePicker.getHours(); 597 int minute = mTimePicker.getMinutes(); 598 setHour(hour, true); 599 setMinute(minute); 600 if (!mIs24HourMode) { 601 updateAmPmDisplay(hour < 12? AM : PM); 602 } 603 setCurrentItemShowing(mTimePicker.getCurrentItemShowing(), true, true, true); 604 mDoneButton.setEnabled(true); 605 } else { 606 Boolean[] enteredZeros = {false, false}; 607 int[] values = getEnteredTime(enteredZeros); 608 String hourFormat = enteredZeros[0]? "%02d" : "%2d"; 609 String minuteFormat = (enteredZeros[1])? "%02d" : "%2d"; 610 String hourStr = (values[0] == -1)? mDoublePlaceholderText : 611 String.format(hourFormat, values[0]).replace(' ', mPlaceholderText); 612 String minuteStr = (values[1] == -1)? mDoublePlaceholderText : 613 String.format(minuteFormat, values[1]).replace(' ', mPlaceholderText); 614 mHourView.setText(hourStr); 615 mHourView.setTextColor(mBlack); 616 mMinuteView.setText(minuteStr); 617 mMinuteView.setTextColor(mBlack); 618 if (!mIs24HourMode) { 619 updateAmPmDisplay(values[2]); 620 } 621 } 622 } 623 624 private int getValFromKeyCode(int keyCode) { 625 switch (keyCode) { 626 case KeyEvent.KEYCODE_0: 627 return 0; 628 case KeyEvent.KEYCODE_1: 629 return 1; 630 case KeyEvent.KEYCODE_2: 631 return 2; 632 case KeyEvent.KEYCODE_3: 633 return 3; 634 case KeyEvent.KEYCODE_4: 635 return 4; 636 case KeyEvent.KEYCODE_5: 637 return 5; 638 case KeyEvent.KEYCODE_6: 639 return 6; 640 case KeyEvent.KEYCODE_7: 641 return 7; 642 case KeyEvent.KEYCODE_8: 643 return 8; 644 case KeyEvent.KEYCODE_9: 645 return 9; 646 default: 647 return -1; 648 } 649 } 650 651 /** 652 * Get the currently-entered time, as integer values of the hours and minutes typed. 653 * @param enteredZeros A size-2 boolean array, which the caller should initialize, and which 654 * may then be used for the caller to know whether zeros had been explicitly entered as either 655 * hours of minutes. This is helpful for deciding whether to show the dashes, or actual 0's. 656 * @return A size-3 int array. The first value will be the hours, the second value will be the 657 * minutes, and the third will be either TimePickerDialog.AM or TimePickerDialog.PM. 658 */ 659 private int[] getEnteredTime(Boolean[] enteredZeros) { 660 int amOrPm = -1; 661 int startIndex = 1; 662 if (!mIs24HourMode && isTypedTimeFullyLegal()) { 663 int keyCode = mTypedTimes.get(mTypedTimes.size() - 1); 664 if (keyCode == getAmOrPmKeyCode(AM)) { 665 amOrPm = AM; 666 } else if (keyCode == getAmOrPmKeyCode(PM)){ 667 amOrPm = PM; 668 } 669 startIndex = 2; 670 } 671 int minute = -1; 672 int hour = -1; 673 for (int i = startIndex; i <= mTypedTimes.size(); i++) { 674 int val = getValFromKeyCode(mTypedTimes.get(mTypedTimes.size() - i)); 675 if (i == startIndex) { 676 minute = val; 677 } else if (i == startIndex+1) { 678 minute += 10*val; 679 if (enteredZeros != null && val == 0) { 680 enteredZeros[1] = true; 681 } 682 } else if (i == startIndex+2) { 683 hour = val; 684 } else if (i == startIndex+3) { 685 hour += 10*val; 686 if (enteredZeros != null && val == 0) { 687 enteredZeros[0] = true; 688 } 689 } 690 } 691 692 int[] ret = {hour, minute, amOrPm}; 693 return ret; 694 } 695 696 /** 697 * Get the keycode value for AM and PM in the current language. 698 */ 699 private int getAmOrPmKeyCode(int amOrPm) { 700 // Cache the codes. 701 if (mAmKeyCode == -1 || mPmKeyCode == -1) { 702 // Find the first character in the AM/PM text that is unique. 703 KeyCharacterMap kcm = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD); 704 char amChar; 705 char pmChar; 706 for (int i = 0; i < Math.max(mAmText.length(), mPmText.length()); i++) { 707 amChar = mAmText.toLowerCase(Locale.getDefault()).charAt(i); 708 pmChar = mPmText.toLowerCase(Locale.getDefault()).charAt(i); 709 if (amChar != pmChar) { 710 KeyEvent[] events = kcm.getEvents(new char[]{amChar, pmChar}); 711 // There should be 4 events: a down and up for both AM and PM. 712 if (events != null && events.length == 4) { 713 mAmKeyCode = events[0].getKeyCode(); 714 mPmKeyCode = events[2].getKeyCode(); 715 } else { 716 Log.e(TAG, "Unable to find keycodes for AM and PM."); 717 } 718 break; 719 } 720 } 721 } 722 if (amOrPm == AM) { 723 return mAmKeyCode; 724 } else if (amOrPm == PM) { 725 return mPmKeyCode; 726 } 727 728 return -1; 729 } 730 731 /** 732 * Create a tree for deciding what keys can legally be typed. 733 */ 734 private void generateLegalTimesTree() { 735 // Create a quick cache of numbers to their keycodes. 736 int k0 = KeyEvent.KEYCODE_0; 737 int k1 = KeyEvent.KEYCODE_1; 738 int k2 = KeyEvent.KEYCODE_2; 739 int k3 = KeyEvent.KEYCODE_3; 740 int k4 = KeyEvent.KEYCODE_4; 741 int k5 = KeyEvent.KEYCODE_5; 742 int k6 = KeyEvent.KEYCODE_6; 743 int k7 = KeyEvent.KEYCODE_7; 744 int k8 = KeyEvent.KEYCODE_8; 745 int k9 = KeyEvent.KEYCODE_9; 746 747 // The root of the tree doesn't contain any numbers. 748 mLegalTimesTree = new Node(); 749 if (mIs24HourMode) { 750 // We'll be re-using these nodes, so we'll save them. 751 Node minuteFirstDigit = new Node(k0, k1, k2, k3, k4, k5); 752 Node minuteSecondDigit = new Node(k0, k1, k2, k3, k4, k5, k6, k7, k8, k9); 753 // The first digit must be followed by the second digit. 754 minuteFirstDigit.addChild(minuteSecondDigit); 755 756 // The first digit may be 0-1. 757 Node firstDigit = new Node(k0, k1); 758 mLegalTimesTree.addChild(firstDigit); 759 760 // When the first digit is 0-1, the second digit may be 0-5. 761 Node secondDigit = new Node(k0, k1, k2, k3, k4, k5); 762 firstDigit.addChild(secondDigit); 763 // We may now be followed by the first minute digit. E.g. 00:09, 15:58. 764 secondDigit.addChild(minuteFirstDigit); 765 766 // When the first digit is 0-1, and the second digit is 0-5, the third digit may be 6-9. 767 Node thirdDigit = new Node(k6, k7, k8, k9); 768 // The time must now be finished. E.g. 0:55, 1:08. 769 secondDigit.addChild(thirdDigit); 770 771 // When the first digit is 0-1, the second digit may be 6-9. 772 secondDigit = new Node(k6, k7, k8, k9); 773 firstDigit.addChild(secondDigit); 774 // We must now be followed by the first minute digit. E.g. 06:50, 18:20. 775 secondDigit.addChild(minuteFirstDigit); 776 777 // The first digit may be 2. 778 firstDigit = new Node(k2); 779 mLegalTimesTree.addChild(firstDigit); 780 781 // When the first digit is 2, the second digit may be 0-3. 782 secondDigit = new Node(k0, k1, k2, k3); 783 firstDigit.addChild(secondDigit); 784 // We must now be followed by the first minute digit. E.g. 20:50, 23:09. 785 secondDigit.addChild(minuteFirstDigit); 786 787 // When the first digit is 2, the second digit may be 4-5. 788 secondDigit = new Node(k4, k5); 789 firstDigit.addChild(secondDigit); 790 // We must now be followd by the last minute digit. E.g. 2:40, 2:53. 791 secondDigit.addChild(minuteSecondDigit); 792 793 // The first digit may be 3-9. 794 firstDigit = new Node(k3, k4, k5, k6, k7, k8, k9); 795 mLegalTimesTree.addChild(firstDigit); 796 // We must now be followed by the first minute digit. E.g. 3:57, 8:12. 797 firstDigit.addChild(minuteFirstDigit); 798 } else { 799 // We'll need to use the AM/PM node a lot. 800 // Set up AM and PM to respond to "a" and "p". 801 Node ampm = new Node(getAmOrPmKeyCode(AM), getAmOrPmKeyCode(PM)); 802 803 // The first hour digit may be 1. 804 Node firstDigit = new Node(k1); 805 mLegalTimesTree.addChild(firstDigit); 806 // We'll allow quick input of on-the-hour times. E.g. 1pm. 807 firstDigit.addChild(ampm); 808 809 // When the first digit is 1, the second digit may be 0-2. 810 Node secondDigit = new Node(k0, k1, k2); 811 firstDigit.addChild(secondDigit); 812 // Also for quick input of on-the-hour times. E.g. 10pm, 12am. 813 secondDigit.addChild(ampm); 814 815 // When the first digit is 1, and the second digit is 0-2, the third digit may be 0-5. 816 Node thirdDigit = new Node(k0, k1, k2, k3, k4, k5); 817 secondDigit.addChild(thirdDigit); 818 // The time may be finished now. E.g. 1:02pm, 1:25am. 819 thirdDigit.addChild(ampm); 820 821 // When the first digit is 1, the second digit is 0-2, and the third digit is 0-5, 822 // the fourth digit may be 0-9. 823 Node fourthDigit = new Node(k0, k1, k2, k3, k4, k5, k6, k7, k8, k9); 824 thirdDigit.addChild(fourthDigit); 825 // The time must be finished now. E.g. 10:49am, 12:40pm. 826 fourthDigit.addChild(ampm); 827 828 // When the first digit is 1, and the second digit is 0-2, the third digit may be 6-9. 829 thirdDigit = new Node(k6, k7, k8, k9); 830 secondDigit.addChild(thirdDigit); 831 // The time must be finished now. E.g. 1:08am, 1:26pm. 832 thirdDigit.addChild(ampm); 833 834 // When the first digit is 1, the second digit may be 3-5. 835 secondDigit = new Node(k3, k4, k5); 836 firstDigit.addChild(secondDigit); 837 838 // When the first digit is 1, and the second digit is 3-5, the third digit may be 0-9. 839 thirdDigit = new Node(k0, k1, k2, k3, k4, k5, k6, k7, k8, k9); 840 secondDigit.addChild(thirdDigit); 841 // The time must be finished now. E.g. 1:39am, 1:50pm. 842 thirdDigit.addChild(ampm); 843 844 // The hour digit may be 2-9. 845 firstDigit = new Node(k2, k3, k4, k5, k6, k7, k8, k9); 846 mLegalTimesTree.addChild(firstDigit); 847 // We'll allow quick input of on-the-hour-times. E.g. 2am, 5pm. 848 firstDigit.addChild(ampm); 849 850 // When the first digit is 2-9, the second digit may be 0-5. 851 secondDigit = new Node(k0, k1, k2, k3, k4, k5); 852 firstDigit.addChild(secondDigit); 853 854 // When the first digit is 2-9, and the second digit is 0-5, the third digit may be 0-9. 855 thirdDigit = new Node(k0, k1, k2, k3, k4, k5, k6, k7, k8, k9); 856 secondDigit.addChild(thirdDigit); 857 // The time must be finished now. E.g. 2:57am, 9:30pm. 858 thirdDigit.addChild(ampm); 859 } 860 } 861 862 /** 863 * Simple node class to be used for traversal to check for legal times. 864 * mLegalKeys represents the keys that can be typed to get to the node. 865 * mChildren are the children that can be reached from this node. 866 */ 867 private class Node { 868 private int[] mLegalKeys; 869 private ArrayList<Node> mChildren; 870 871 public Node(int... legalKeys) { 872 mLegalKeys = legalKeys; 873 mChildren = new ArrayList<Node>(); 874 } 875 876 public void addChild(Node child) { 877 mChildren.add(child); 878 } 879 880 public boolean containsKey(int key) { 881 for (int i = 0; i < mLegalKeys.length; i++) { 882 if (mLegalKeys[i] == key) { 883 return true; 884 } 885 } 886 return false; 887 } 888 889 public Node canReach(int key) { 890 if (mChildren == null) { 891 return null; 892 } 893 for (Node child : mChildren) { 894 if (child.containsKey(key)) { 895 return child; 896 } 897 } 898 return null; 899 } 900 } 901 902 private class KeyboardListener implements OnKeyListener { 903 @Override 904 public boolean onKey(View v, int keyCode, KeyEvent event) { 905 if (event.getAction() == KeyEvent.ACTION_UP) { 906 return processKeyUp(keyCode); 907 } 908 return false; 909 } 910 } 911} 912