AppsCustomizePagedView.java revision 3c1681d5f7d56af5b25126d1c2b2ba7aa799deca
1/* 2 * Copyright (C) 2011 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.launcher2; 18 19import android.animation.AnimatorSet; 20import android.animation.ValueAnimator; 21import android.appwidget.AppWidgetHostView; 22import android.appwidget.AppWidgetManager; 23import android.appwidget.AppWidgetProviderInfo; 24import android.content.ComponentName; 25import android.content.Context; 26import android.content.Intent; 27import android.content.pm.PackageManager; 28import android.content.pm.ResolveInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.content.res.TypedArray; 32import android.graphics.Bitmap; 33import android.graphics.Bitmap.Config; 34import android.graphics.Canvas; 35import android.graphics.ColorMatrix; 36import android.graphics.ColorMatrixColorFilter; 37import android.graphics.Matrix; 38import android.graphics.Paint; 39import android.graphics.PorterDuff; 40import android.graphics.Rect; 41import android.graphics.RectF; 42import android.graphics.Shader; 43import android.graphics.drawable.BitmapDrawable; 44import android.graphics.drawable.Drawable; 45import android.os.AsyncTask; 46import android.os.Build; 47import android.os.Bundle; 48import android.os.Process; 49import android.util.AttributeSet; 50import android.util.Log; 51import android.view.Gravity; 52import android.view.KeyEvent; 53import android.view.LayoutInflater; 54import android.view.View; 55import android.view.ViewGroup; 56import android.view.animation.AccelerateInterpolator; 57import android.view.animation.DecelerateInterpolator; 58import android.widget.GridLayout; 59import android.widget.ImageView; 60import android.widget.Toast; 61 62import com.android.launcher.R; 63import com.android.launcher2.DropTarget.DragObject; 64 65import java.lang.ref.WeakReference; 66import java.util.ArrayList; 67import java.util.Collections; 68import java.util.Iterator; 69import java.util.List; 70 71/** 72 * A simple callback interface which also provides the results of the task. 73 */ 74interface AsyncTaskCallback { 75 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 76} 77 78/** 79 * The data needed to perform either of the custom AsyncTasks. 80 */ 81class AsyncTaskPageData { 82 enum Type { 83 LoadWidgetPreviewData 84 } 85 86 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 87 AsyncTaskCallback postR) { 88 page = p; 89 items = l; 90 sourceImages = si; 91 generatedImages = new ArrayList<Bitmap>(); 92 maxImageWidth = maxImageHeight = -1; 93 doInBackgroundCallback = bgR; 94 postExecuteCallback = postR; 95 } 96 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 97 AsyncTaskCallback postR) { 98 page = p; 99 items = l; 100 generatedImages = new ArrayList<Bitmap>(); 101 maxImageWidth = cw; 102 maxImageHeight = ch; 103 doInBackgroundCallback = bgR; 104 postExecuteCallback = postR; 105 } 106 void cleanup(boolean cancelled) { 107 // Clean up any references to source/generated bitmaps 108 if (sourceImages != null) { 109 if (cancelled) { 110 for (Bitmap b : sourceImages) { 111 b.recycle(); 112 } 113 } 114 sourceImages.clear(); 115 } 116 if (generatedImages != null) { 117 if (cancelled) { 118 for (Bitmap b : generatedImages) { 119 b.recycle(); 120 } 121 } 122 generatedImages.clear(); 123 } 124 } 125 int page; 126 ArrayList<Object> items; 127 ArrayList<Bitmap> sourceImages; 128 ArrayList<Bitmap> generatedImages; 129 int maxImageWidth; 130 int maxImageHeight; 131 AsyncTaskCallback doInBackgroundCallback; 132 AsyncTaskCallback postExecuteCallback; 133} 134 135/** 136 * A generic template for an async task used in AppsCustomize. 137 */ 138class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 139 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 140 page = p; 141 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 142 dataType = ty; 143 } 144 @Override 145 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 146 if (params.length != 1) return null; 147 // Load each of the widget previews in the background 148 params[0].doInBackgroundCallback.run(this, params[0]); 149 return params[0]; 150 } 151 @Override 152 protected void onPostExecute(AsyncTaskPageData result) { 153 // All the widget previews are loaded, so we can just callback to inflate the page 154 result.postExecuteCallback.run(this, result); 155 } 156 157 void setThreadPriority(int p) { 158 threadPriority = p; 159 } 160 void syncThreadPriority() { 161 Process.setThreadPriority(threadPriority); 162 } 163 164 // The page that this async task is associated with 165 AsyncTaskPageData.Type dataType; 166 int page; 167 int threadPriority; 168} 169 170abstract class WeakReferenceThreadLocal<T> { 171 private ThreadLocal<WeakReference<T>> mThreadLocal; 172 public WeakReferenceThreadLocal() { 173 mThreadLocal = new ThreadLocal<WeakReference<T>>(); 174 } 175 176 abstract T initialValue(); 177 178 public void set(T t) { 179 mThreadLocal.set(new WeakReference<T>(t)); 180 } 181 182 public T get() { 183 WeakReference<T> reference = mThreadLocal.get(); 184 T obj; 185 if (reference == null) { 186 obj = initialValue(); 187 mThreadLocal.set(new WeakReference<T>(obj)); 188 return obj; 189 } else { 190 obj = reference.get(); 191 if (obj == null) { 192 obj = initialValue(); 193 mThreadLocal.set(new WeakReference<T>(obj)); 194 } 195 return obj; 196 } 197 } 198} 199 200class CanvasCache extends WeakReferenceThreadLocal<Canvas> { 201 @Override 202 protected Canvas initialValue() { 203 return new Canvas(); 204 } 205} 206 207class PaintCache extends WeakReferenceThreadLocal<Paint> { 208 @Override 209 protected Paint initialValue() { 210 return null; 211 } 212} 213 214class BitmapCache extends WeakReferenceThreadLocal<Bitmap> { 215 @Override 216 protected Bitmap initialValue() { 217 return null; 218 } 219} 220 221class RectCache extends WeakReferenceThreadLocal<Rect> { 222 @Override 223 protected Rect initialValue() { 224 return new Rect(); 225 } 226} 227 228/** 229 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 230 */ 231public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 232 View.OnClickListener, View.OnKeyListener, DragSource, 233 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener, 234 LauncherTransitionable { 235 static final String TAG = "AppsCustomizePagedView"; 236 237 /** 238 * The different content types that this paged view can show. 239 */ 240 public enum ContentType { 241 Applications, 242 Widgets 243 } 244 245 // Refs 246 private Launcher mLauncher; 247 private DragController mDragController; 248 private final LayoutInflater mLayoutInflater; 249 private final PackageManager mPackageManager; 250 251 // Save and Restore 252 private int mSaveInstanceStateItemIndex = -1; 253 private PagedViewIcon mPressedIcon; 254 255 // Content 256 private ArrayList<ApplicationInfo> mApps; 257 private ArrayList<Object> mWidgets; 258 259 // Cling 260 private boolean mHasShownAllAppsCling; 261 private int mClingFocusedX; 262 private int mClingFocusedY; 263 264 // Caching 265 private Canvas mCanvas; 266 private IconCache mIconCache; 267 268 // Dimens 269 private int mContentWidth; 270 private int mAppIconSize; 271 private int mMaxAppCellCountX, mMaxAppCellCountY; 272 private int mWidgetCountX, mWidgetCountY; 273 private int mWidgetWidthGap, mWidgetHeightGap; 274 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 275 private PagedViewCellLayout mWidgetSpacingLayout; 276 private int mNumAppsPages; 277 private int mNumWidgetPages; 278 279 // Relating to the scroll and overscroll effects 280 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 281 private static float CAMERA_DISTANCE = 6500; 282 private static float TRANSITION_SCALE_FACTOR = 0.74f; 283 private static float TRANSITION_PIVOT = 0.65f; 284 private static float TRANSITION_MAX_ROTATION = 22; 285 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 286 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 287 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 288 289 // Previews & outlines 290 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 291 private static final int sPageSleepDelay = 200; 292 293 private Runnable mInflateWidgetRunnable = null; 294 private Runnable mBindWidgetRunnable = null; 295 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 296 static final int WIDGET_PRELOAD_PENDING = 0; 297 static final int WIDGET_BOUND = 1; 298 static final int WIDGET_INFLATED = 2; 299 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 300 int mWidgetLoadingId = -1; 301 PendingAddWidgetInfo mCreateWidgetInfo = null; 302 private boolean mDraggingWidget = false; 303 304 private Toast mWidgetInstructionToast; 305 306 // Deferral of loading widget previews during launcher transitions 307 private boolean mInTransition; 308 private ArrayList<AsyncTaskPageData> mDeferredSyncWidgetPageItems = 309 new ArrayList<AsyncTaskPageData>(); 310 private ArrayList<Runnable> mDeferredPrepareLoadWidgetPreviewsTasks = 311 new ArrayList<Runnable>(); 312 313 private Rect mTmpRect = new Rect(); 314 315 // Used for drawing shortcut previews 316 BitmapCache mCachedShortcutPreviewBitmap = new BitmapCache(); 317 PaintCache mCachedShortcutPreviewPaint = new PaintCache(); 318 CanvasCache mCachedShortcutPreviewCanvas = new CanvasCache(); 319 320 // Used for drawing widget previews 321 CanvasCache mCachedAppWidgetPreviewCanvas = new CanvasCache(); 322 RectCache mCachedAppWidgetPreviewSrcRect = new RectCache(); 323 RectCache mCachedAppWidgetPreviewDestRect = new RectCache(); 324 PaintCache mCachedAppWidgetPreviewPaint = new PaintCache(); 325 326 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 327 super(context, attrs); 328 mLayoutInflater = LayoutInflater.from(context); 329 mPackageManager = context.getPackageManager(); 330 mApps = new ArrayList<ApplicationInfo>(); 331 mWidgets = new ArrayList<Object>(); 332 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 333 mCanvas = new Canvas(); 334 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 335 336 // Save the default widget preview background 337 Resources resources = context.getResources(); 338 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 339 340 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 341 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 342 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 343 mWidgetWidthGap = 344 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 345 mWidgetHeightGap = 346 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 347 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 348 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 349 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 350 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 351 a.recycle(); 352 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 353 354 // The padding on the non-matched dimension for the default widget preview icons 355 // (top + bottom) 356 mFadeInAdjacentScreens = false; 357 358 // Unless otherwise specified this view is important for accessibility. 359 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 360 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 361 } 362 } 363 364 @Override 365 protected void init() { 366 super.init(); 367 mCenterPagesVertically = false; 368 369 Context context = getContext(); 370 Resources r = context.getResources(); 371 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 372 } 373 374 /** Returns the item index of the center item on this page so that we can restore to this 375 * item index when we rotate. */ 376 private int getMiddleComponentIndexOnCurrentPage() { 377 int i = -1; 378 if (getPageCount() > 0) { 379 int currentPage = getCurrentPage(); 380 if (currentPage < mNumAppsPages) { 381 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 382 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 383 int numItemsPerPage = mCellCountX * mCellCountY; 384 int childCount = childrenLayout.getChildCount(); 385 if (childCount > 0) { 386 i = (currentPage * numItemsPerPage) + (childCount / 2); 387 } 388 } else { 389 int numApps = mApps.size(); 390 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 391 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 392 int childCount = layout.getChildCount(); 393 if (childCount > 0) { 394 i = numApps + 395 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 396 } 397 } 398 } 399 return i; 400 } 401 402 /** Get the index of the item to restore to if we need to restore the current page. */ 403 int getSaveInstanceStateIndex() { 404 if (mSaveInstanceStateItemIndex == -1) { 405 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 406 } 407 return mSaveInstanceStateItemIndex; 408 } 409 410 /** Returns the page in the current orientation which is expected to contain the specified 411 * item index. */ 412 int getPageForComponent(int index) { 413 if (index < 0) return 0; 414 415 if (index < mApps.size()) { 416 int numItemsPerPage = mCellCountX * mCellCountY; 417 return (index / numItemsPerPage); 418 } else { 419 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 420 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 421 } 422 } 423 424 /** Restores the page for an item at the specified index */ 425 void restorePageForIndex(int index) { 426 if (index < 0) return; 427 mSaveInstanceStateItemIndex = index; 428 } 429 430 private void updatePageCounts() { 431 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 432 (float) (mWidgetCountX * mWidgetCountY)); 433 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 434 } 435 436 protected void onDataReady(int width, int height) { 437 // Note that we transpose the counts in portrait so that we get a similar layout 438 boolean isLandscape = getResources().getConfiguration().orientation == 439 Configuration.ORIENTATION_LANDSCAPE; 440 int maxCellCountX = Integer.MAX_VALUE; 441 int maxCellCountY = Integer.MAX_VALUE; 442 if (LauncherApplication.isScreenLarge()) { 443 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 444 LauncherModel.getCellCountY()); 445 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 446 LauncherModel.getCellCountX()); 447 } 448 if (mMaxAppCellCountX > -1) { 449 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 450 } 451 // Temp hack for now: only use the max cell count Y for widget layout 452 int maxWidgetCellCountY = maxCellCountY; 453 if (mMaxAppCellCountY > -1) { 454 maxWidgetCellCountY = Math.min(maxWidgetCellCountY, mMaxAppCellCountY); 455 } 456 457 // Now that the data is ready, we can calculate the content width, the number of cells to 458 // use for each page 459 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 460 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 461 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 462 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 463 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 464 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 465 updatePageCounts(); 466 467 // Force a measure to update recalculate the gaps 468 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 469 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 470 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxWidgetCellCountY); 471 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 472 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 473 474 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 475 final boolean hostIsTransitioning = host.isTransitioning(); 476 477 // Restore the page 478 int page = getPageForComponent(mSaveInstanceStateItemIndex); 479 invalidatePageData(Math.max(0, page), hostIsTransitioning); 480 481 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 482 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 483 // returned while animating) 484 if (!hostIsTransitioning) { 485 post(new Runnable() { 486 @Override 487 public void run() { 488 showAllAppsCling(); 489 } 490 }); 491 } 492 } 493 494 void showAllAppsCling() { 495 if (!mHasShownAllAppsCling && isDataReady()) { 496 mHasShownAllAppsCling = true; 497 // Calculate the position for the cling punch through 498 int[] offset = new int[2]; 499 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 500 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 501 // PagedViews are centered horizontally but top aligned 502 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 503 offset[0]; 504 pos[1] += offset[1]; 505 mLauncher.showFirstRunAllAppsCling(pos); 506 } 507 } 508 509 @Override 510 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 511 int width = MeasureSpec.getSize(widthMeasureSpec); 512 int height = MeasureSpec.getSize(heightMeasureSpec); 513 if (!isDataReady()) { 514 if (!mApps.isEmpty() && !mWidgets.isEmpty()) { 515 setDataIsReady(); 516 setMeasuredDimension(width, height); 517 onDataReady(width, height); 518 } 519 } 520 521 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 522 } 523 524 public void onPackagesUpdated() { 525 // Get the list of widgets and shortcuts 526 mWidgets.clear(); 527 List<AppWidgetProviderInfo> widgets = 528 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 529 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 530 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 531 for (AppWidgetProviderInfo widget : widgets) { 532 if (widget.minWidth > 0 && widget.minHeight > 0) { 533 // Ensure that all widgets we show can be added on a workspace of this size 534 int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget); 535 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget); 536 int minSpanX = Math.min(spanXY[0], minSpanXY[0]); 537 int minSpanY = Math.min(spanXY[1], minSpanXY[1]); 538 if (minSpanX <= LauncherModel.getCellCountX() && 539 minSpanY <= LauncherModel.getCellCountY()) { 540 mWidgets.add(widget); 541 } else { 542 Log.e(TAG, "Widget " + widget.provider + " can not fit on this device (" + 543 widget.minWidth + ", " + widget.minHeight + ")"); 544 } 545 } else { 546 Log.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" + 547 widget.minWidth + ", " + widget.minHeight + ")"); 548 } 549 } 550 mWidgets.addAll(shortcuts); 551 Collections.sort(mWidgets, 552 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 553 updatePageCounts(); 554 invalidateOnDataChange(); 555 } 556 557 @Override 558 public void onClick(View v) { 559 // When we have exited all apps or are in transition, disregard clicks 560 if (!mLauncher.isAllAppsVisible() || 561 mLauncher.getWorkspace().isSwitchingState()) return; 562 563 if (v instanceof PagedViewIcon) { 564 // Animate some feedback to the click 565 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 566 567 // Lock the drawable state to pressed until we return to Launcher 568 if (mPressedIcon != null) { 569 mPressedIcon.lockDrawableState(); 570 } 571 572 // NOTE: We want all transitions from launcher to act as if the wallpaper were enabled 573 // to be consistent. So re-enable the flag here, and we will re-disable it as necessary 574 // when Launcher resumes and we are still in AllApps. 575 mLauncher.updateWallpaperVisibility(true); 576 mLauncher.startActivitySafely(v, appInfo.intent, appInfo); 577 578 } else if (v instanceof PagedViewWidget) { 579 // Let the user know that they have to long press to add a widget 580 if (mWidgetInstructionToast != null) { 581 mWidgetInstructionToast.cancel(); 582 } 583 mWidgetInstructionToast = Toast.makeText(getContext(),R.string.long_press_widget_to_add, 584 Toast.LENGTH_SHORT); 585 mWidgetInstructionToast.show(); 586 587 // Create a little animation to show that the widget can move 588 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 589 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 590 AnimatorSet bounce = LauncherAnimUtils.createAnimatorSet(); 591 ValueAnimator tyuAnim = LauncherAnimUtils.ofFloat(p, "translationY", offsetY); 592 tyuAnim.setDuration(125); 593 ValueAnimator tydAnim = LauncherAnimUtils.ofFloat(p, "translationY", 0f); 594 tydAnim.setDuration(100); 595 bounce.play(tyuAnim).before(tydAnim); 596 bounce.setInterpolator(new AccelerateInterpolator()); 597 bounce.start(); 598 } 599 } 600 601 public boolean onKey(View v, int keyCode, KeyEvent event) { 602 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 603 } 604 605 /* 606 * PagedViewWithDraggableItems implementation 607 */ 608 @Override 609 protected void determineDraggingStart(android.view.MotionEvent ev) { 610 // Disable dragging by pulling an app down for now. 611 } 612 613 private void beginDraggingApplication(View v) { 614 mLauncher.getWorkspace().onDragStartedWithItem(v); 615 mLauncher.getWorkspace().beginDragShared(v, this); 616 } 617 618 Bundle getDefaultOptionsForWidget(Launcher launcher, PendingAddWidgetInfo info) { 619 Bundle options = null; 620 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { 621 AppWidgetResizeFrame.getWidgetSizeRanges(mLauncher, info.spanX, info.spanY, mTmpRect); 622 Rect padding = AppWidgetHostView.getDefaultPaddingForWidget(mLauncher, 623 info.componentName, null); 624 625 float density = getResources().getDisplayMetrics().density; 626 int xPaddingDips = (int) ((padding.left + padding.right) / density); 627 int yPaddingDips = (int) ((padding.top + padding.bottom) / density); 628 629 options = new Bundle(); 630 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH, 631 mTmpRect.left - xPaddingDips); 632 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT, 633 mTmpRect.top - yPaddingDips); 634 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH, 635 mTmpRect.right - xPaddingDips); 636 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT, 637 mTmpRect.bottom - yPaddingDips); 638 } 639 return options; 640 } 641 642 private void preloadWidget(final PendingAddWidgetInfo info) { 643 final AppWidgetProviderInfo pInfo = info.info; 644 final Bundle options = getDefaultOptionsForWidget(mLauncher, info); 645 646 if (pInfo.configure != null) { 647 info.bindOptions = options; 648 return; 649 } 650 651 mWidgetCleanupState = WIDGET_PRELOAD_PENDING; 652 mBindWidgetRunnable = new Runnable() { 653 @Override 654 public void run() { 655 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 656 // Options will be null for platforms with JB or lower, so this serves as an 657 // SDK level check. 658 if (options == null) { 659 if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed( 660 mWidgetLoadingId, info.componentName)) { 661 mWidgetCleanupState = WIDGET_BOUND; 662 } 663 } else { 664 if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed( 665 mWidgetLoadingId, info.componentName, options)) { 666 mWidgetCleanupState = WIDGET_BOUND; 667 } 668 } 669 } 670 }; 671 post(mBindWidgetRunnable); 672 673 mInflateWidgetRunnable = new Runnable() { 674 @Override 675 public void run() { 676 if (mWidgetCleanupState != WIDGET_BOUND) { 677 return; 678 } 679 AppWidgetHostView hostView = mLauncher. 680 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 681 info.boundWidget = hostView; 682 mWidgetCleanupState = WIDGET_INFLATED; 683 hostView.setVisibility(INVISIBLE); 684 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 685 info.spanY, info, false); 686 687 // We want the first widget layout to be the correct size. This will be important 688 // for width size reporting to the AppWidgetManager. 689 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 690 unScaledSize[1]); 691 lp.x = lp.y = 0; 692 lp.customPosition = true; 693 hostView.setLayoutParams(lp); 694 mLauncher.getDragLayer().addView(hostView); 695 } 696 }; 697 post(mInflateWidgetRunnable); 698 } 699 700 @Override 701 public void onShortPress(View v) { 702 // We are anticipating a long press, and we use this time to load bind and instantiate 703 // the widget. This will need to be cleaned up if it turns out no long press occurs. 704 if (mCreateWidgetInfo != null) { 705 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 706 cleanupWidgetPreloading(false); 707 } 708 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 709 preloadWidget(mCreateWidgetInfo); 710 } 711 712 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 713 if (!widgetWasAdded) { 714 // If the widget was not added, we may need to do further cleanup. 715 PendingAddWidgetInfo info = mCreateWidgetInfo; 716 mCreateWidgetInfo = null; 717 718 if (mWidgetCleanupState == WIDGET_PRELOAD_PENDING) { 719 // We never did any preloading, so just remove pending callbacks to do so 720 removeCallbacks(mBindWidgetRunnable); 721 removeCallbacks(mInflateWidgetRunnable); 722 } else if (mWidgetCleanupState == WIDGET_BOUND) { 723 // Delete the widget id which was allocated 724 if (mWidgetLoadingId != -1) { 725 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 726 } 727 728 // We never got around to inflating the widget, so remove the callback to do so. 729 removeCallbacks(mInflateWidgetRunnable); 730 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 731 // Delete the widget id which was allocated 732 if (mWidgetLoadingId != -1) { 733 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 734 } 735 736 // The widget was inflated and added to the DragLayer -- remove it. 737 AppWidgetHostView widget = info.boundWidget; 738 mLauncher.getDragLayer().removeView(widget); 739 } 740 } 741 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 742 mWidgetLoadingId = -1; 743 mCreateWidgetInfo = null; 744 PagedViewWidget.resetShortPressTarget(); 745 } 746 747 @Override 748 public void cleanUpShortPress(View v) { 749 if (!mDraggingWidget) { 750 cleanupWidgetPreloading(false); 751 } 752 } 753 754 private boolean beginDraggingWidget(View v) { 755 mDraggingWidget = true; 756 // Get the widget preview as the drag representation 757 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 758 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 759 760 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 761 // we abort the drag. 762 if (image.getDrawable() == null) { 763 mDraggingWidget = false; 764 return false; 765 } 766 767 // Compose the drag image 768 Bitmap preview; 769 Bitmap outline; 770 float scale = 1f; 771 if (createItemInfo instanceof PendingAddWidgetInfo) { 772 // This can happen in some weird cases involving multi-touch. We can't start dragging 773 // the widget if this is null, so we break out. 774 if (mCreateWidgetInfo == null) { 775 return false; 776 } 777 778 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 779 createItemInfo = createWidgetInfo; 780 int spanX = createItemInfo.spanX; 781 int spanY = createItemInfo.spanY; 782 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 783 createWidgetInfo, true); 784 785 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 786 float minScale = 1.25f; 787 int maxWidth, maxHeight; 788 maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 789 maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 790 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 791 createWidgetInfo.icon, spanX, spanY, maxWidth, maxHeight); 792 793 // Determine the image view drawable scale relative to the preview 794 float[] mv = new float[9]; 795 Matrix m = new Matrix(); 796 m.setRectToRect( 797 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 798 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 799 (float) previewDrawable.getIntrinsicHeight()), 800 Matrix.ScaleToFit.START); 801 m.getValues(mv); 802 scale = (float) mv[0]; 803 } else { 804 PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag(); 805 Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo); 806 preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), 807 icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 808 809 mCanvas.setBitmap(preview); 810 mCanvas.save(); 811 renderDrawableToBitmap(icon, preview, 0, 0, 812 icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); 813 mCanvas.restore(); 814 mCanvas.setBitmap(null); 815 createItemInfo.spanX = createItemInfo.spanY = 1; 816 } 817 818 // Don't clip alpha values for the drag outline if we're using the default widget preview 819 boolean clipAlpha = !(createItemInfo instanceof PendingAddWidgetInfo && 820 (((PendingAddWidgetInfo) createItemInfo).previewImage == 0)); 821 822 // Save the preview for the outline generation, then dim the preview 823 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 824 false); 825 826 // Start the drag 827 mLauncher.lockScreenOrientation(); 828 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, clipAlpha); 829 mDragController.startDrag(image, preview, this, createItemInfo, 830 DragController.DRAG_ACTION_COPY, null, scale); 831 outline.recycle(); 832 preview.recycle(); 833 return true; 834 } 835 836 @Override 837 protected boolean beginDragging(final View v) { 838 if (!super.beginDragging(v)) return false; 839 840 if (v instanceof PagedViewIcon) { 841 beginDraggingApplication(v); 842 } else if (v instanceof PagedViewWidget) { 843 if (!beginDraggingWidget(v)) { 844 return false; 845 } 846 } 847 848 // We delay entering spring-loaded mode slightly to make sure the UI 849 // thready is free of any work. 850 postDelayed(new Runnable() { 851 @Override 852 public void run() { 853 // We don't enter spring-loaded mode if the drag has been cancelled 854 if (mLauncher.getDragController().isDragging()) { 855 // Dismiss the cling 856 mLauncher.dismissAllAppsCling(null); 857 858 // Reset the alpha on the dragged icon before we drag 859 resetDrawableState(); 860 861 // Go into spring loaded mode (must happen before we startDrag()) 862 mLauncher.enterSpringLoadedDragMode(); 863 } 864 } 865 }, 150); 866 867 return true; 868 } 869 870 /** 871 * Clean up after dragging. 872 * 873 * @param target where the item was dragged to (can be null if the item was flung) 874 */ 875 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 876 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 877 !(target instanceof DeleteDropTarget))) { 878 // Exit spring loaded mode if we have not successfully dropped or have not handled the 879 // drop in Workspace 880 mLauncher.exitSpringLoadedDragMode(); 881 } 882 mLauncher.unlockScreenOrientation(false); 883 } 884 885 @Override 886 public View getContent() { 887 return null; 888 } 889 890 @Override 891 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 892 mInTransition = true; 893 if (toWorkspace) { 894 cancelAllTasks(); 895 } 896 } 897 898 @Override 899 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 900 } 901 902 @Override 903 public void onLauncherTransitionStep(Launcher l, float t) { 904 } 905 906 @Override 907 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 908 mInTransition = false; 909 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 910 onSyncWidgetPageItems(d); 911 } 912 mDeferredSyncWidgetPageItems.clear(); 913 for (Runnable r : mDeferredPrepareLoadWidgetPreviewsTasks) { 914 r.run(); 915 } 916 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 917 mForceDrawAllChildrenNextFrame = !toWorkspace; 918 } 919 920 @Override 921 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 922 boolean success) { 923 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 924 if (isFlingToDelete) return; 925 926 endDragging(target, false, success); 927 928 // Display an error message if the drag failed due to there not being enough space on the 929 // target layout we were dropping on. 930 if (!success) { 931 boolean showOutOfSpaceMessage = false; 932 if (target instanceof Workspace) { 933 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 934 Workspace workspace = (Workspace) target; 935 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 936 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 937 if (layout != null) { 938 layout.calculateSpans(itemInfo); 939 showOutOfSpaceMessage = 940 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 941 } 942 } 943 if (showOutOfSpaceMessage) { 944 mLauncher.showOutOfSpaceMessage(false); 945 } 946 947 d.deferDragViewCleanupPostAnimation = false; 948 } 949 cleanupWidgetPreloading(success); 950 mDraggingWidget = false; 951 } 952 953 @Override 954 public void onFlingToDeleteCompleted() { 955 // We just dismiss the drag when we fling, so cleanup here 956 endDragging(null, true, true); 957 cleanupWidgetPreloading(false); 958 mDraggingWidget = false; 959 } 960 961 @Override 962 public boolean supportsFlingToDelete() { 963 return true; 964 } 965 966 @Override 967 protected void onDetachedFromWindow() { 968 super.onDetachedFromWindow(); 969 cancelAllTasks(); 970 } 971 972 public void clearAllWidgetPages() { 973 cancelAllTasks(); 974 int count = getChildCount(); 975 for (int i = 0; i < count; i++) { 976 View v = getPageAt(i); 977 if (v instanceof PagedViewGridLayout) { 978 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 979 mDirtyPageContent.set(i, true); 980 } 981 } 982 } 983 984 private void cancelAllTasks() { 985 // Clean up all the async tasks 986 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 987 while (iter.hasNext()) { 988 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 989 task.cancel(false); 990 iter.remove(); 991 mDirtyPageContent.set(task.page, true); 992 993 // We've already preallocated the views for the data to load into, so clear them as well 994 View v = getPageAt(task.page); 995 if (v instanceof PagedViewGridLayout) { 996 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 997 } 998 } 999 mDeferredSyncWidgetPageItems.clear(); 1000 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 1001 } 1002 1003 public void setContentType(ContentType type) { 1004 if (type == ContentType.Widgets) { 1005 invalidatePageData(mNumAppsPages, true); 1006 } else if (type == ContentType.Applications) { 1007 invalidatePageData(0, true); 1008 } 1009 } 1010 1011 protected void snapToPage(int whichPage, int delta, int duration) { 1012 super.snapToPage(whichPage, delta, duration); 1013 updateCurrentTab(whichPage); 1014 1015 // Update the thread priorities given the direction lookahead 1016 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1017 while (iter.hasNext()) { 1018 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1019 int pageIndex = task.page; 1020 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 1021 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 1022 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1023 } else { 1024 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 1025 } 1026 } 1027 } 1028 1029 private void updateCurrentTab(int currentPage) { 1030 AppsCustomizeTabHost tabHost = getTabHost(); 1031 if (tabHost != null) { 1032 String tag = tabHost.getCurrentTabTag(); 1033 if (tag != null) { 1034 if (currentPage >= mNumAppsPages && 1035 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 1036 tabHost.setCurrentTabFromContent(ContentType.Widgets); 1037 } else if (currentPage < mNumAppsPages && 1038 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1039 tabHost.setCurrentTabFromContent(ContentType.Applications); 1040 } 1041 } 1042 } 1043 } 1044 1045 /* 1046 * Apps PagedView implementation 1047 */ 1048 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 1049 int childCount = layout.getChildCount(); 1050 for (int i = 0; i < childCount; ++i) { 1051 layout.getChildAt(i).setVisibility(visibility); 1052 } 1053 } 1054 private void setupPage(PagedViewCellLayout layout) { 1055 layout.setCellCount(mCellCountX, mCellCountY); 1056 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 1057 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1058 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1059 1060 // Note: We force a measure here to get around the fact that when we do layout calculations 1061 // immediately after syncing, we don't have a proper width. That said, we already know the 1062 // expected page width, so we can actually optimize by hiding all the TextView-based 1063 // children that are expensive to measure, and let that happen naturally later. 1064 setVisibilityOnChildren(layout, View.GONE); 1065 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1066 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1067 layout.setMinimumWidth(getPageContentWidth()); 1068 layout.measure(widthSpec, heightSpec); 1069 setVisibilityOnChildren(layout, View.VISIBLE); 1070 } 1071 1072 public void syncAppsPageItems(int page, boolean immediate) { 1073 // ensure that we have the right number of items on the pages 1074 int numCells = mCellCountX * mCellCountY; 1075 int startIndex = page * numCells; 1076 int endIndex = Math.min(startIndex + numCells, mApps.size()); 1077 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 1078 1079 layout.removeAllViewsOnPage(); 1080 ArrayList<Object> items = new ArrayList<Object>(); 1081 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 1082 for (int i = startIndex; i < endIndex; ++i) { 1083 ApplicationInfo info = mApps.get(i); 1084 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 1085 R.layout.apps_customize_application, layout, false); 1086 icon.applyFromApplicationInfo(info, true, this); 1087 icon.setOnClickListener(this); 1088 icon.setOnLongClickListener(this); 1089 icon.setOnTouchListener(this); 1090 icon.setOnKeyListener(this); 1091 1092 int index = i - startIndex; 1093 int x = index % mCellCountX; 1094 int y = index / mCellCountX; 1095 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 1096 1097 items.add(info); 1098 images.add(info.iconBitmap); 1099 } 1100 1101 layout.createHardwareLayers(); 1102 } 1103 1104 /** 1105 * A helper to return the priority for loading of the specified widget page. 1106 */ 1107 private int getWidgetPageLoadPriority(int page) { 1108 // If we are snapping to another page, use that index as the target page index 1109 int toPage = mCurrentPage; 1110 if (mNextPage > -1) { 1111 toPage = mNextPage; 1112 } 1113 1114 // We use the distance from the target page as an initial guess of priority, but if there 1115 // are no pages of higher priority than the page specified, then bump up the priority of 1116 // the specified page. 1117 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1118 int minPageDiff = Integer.MAX_VALUE; 1119 while (iter.hasNext()) { 1120 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1121 minPageDiff = Math.abs(task.page - toPage); 1122 } 1123 1124 int rawPageDiff = Math.abs(page - toPage); 1125 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1126 } 1127 /** 1128 * Return the appropriate thread priority for loading for a given page (we give the current 1129 * page much higher priority) 1130 */ 1131 private int getThreadPriorityForPage(int page) { 1132 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1133 int pageDiff = getWidgetPageLoadPriority(page); 1134 if (pageDiff <= 0) { 1135 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1136 } else if (pageDiff <= 1) { 1137 return Process.THREAD_PRIORITY_LOWEST; 1138 } else { 1139 return Process.THREAD_PRIORITY_LOWEST; 1140 } 1141 } 1142 private int getSleepForPage(int page) { 1143 int pageDiff = getWidgetPageLoadPriority(page); 1144 return Math.max(0, pageDiff * sPageSleepDelay); 1145 } 1146 /** 1147 * Creates and executes a new AsyncTask to load a page of widget previews. 1148 */ 1149 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1150 int cellWidth, int cellHeight, int cellCountX) { 1151 1152 // Prune all tasks that are no longer needed 1153 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1154 while (iter.hasNext()) { 1155 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1156 int taskPage = task.page; 1157 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1158 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1159 task.cancel(false); 1160 iter.remove(); 1161 } else { 1162 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1163 } 1164 } 1165 1166 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1167 final int sleepMs = getSleepForPage(page); 1168 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1169 new AsyncTaskCallback() { 1170 @Override 1171 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1172 try { 1173 try { 1174 Thread.sleep(sleepMs); 1175 } catch (Exception e) {} 1176 loadWidgetPreviewsInBackground(task, data); 1177 } finally { 1178 if (task.isCancelled()) { 1179 data.cleanup(true); 1180 } 1181 } 1182 } 1183 }, 1184 new AsyncTaskCallback() { 1185 @Override 1186 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1187 mRunningTasks.remove(task); 1188 if (task.isCancelled()) return; 1189 // do cleanup inside onSyncWidgetPageItems 1190 onSyncWidgetPageItems(data); 1191 } 1192 }); 1193 1194 // Ensure that the task is appropriately prioritized and runs in parallel 1195 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1196 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1197 t.setThreadPriority(getThreadPriorityForPage(page)); 1198 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1199 mRunningTasks.add(t); 1200 } 1201 1202 /* 1203 * Widgets PagedView implementation 1204 */ 1205 private void setupPage(PagedViewGridLayout layout) { 1206 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1207 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1208 1209 // Note: We force a measure here to get around the fact that when we do layout calculations 1210 // immediately after syncing, we don't have a proper width. 1211 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1212 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1213 layout.setMinimumWidth(getPageContentWidth()); 1214 layout.measure(widthSpec, heightSpec); 1215 } 1216 1217 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1218 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 1219 } 1220 1221 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1222 float scale) { 1223 if (bitmap != null) { 1224 Canvas c = new Canvas(bitmap); 1225 c.scale(scale, scale); 1226 Rect oldBounds = d.copyBounds(); 1227 d.setBounds(x, y, x + w, y + h); 1228 d.draw(c); 1229 d.setBounds(oldBounds); // Restore the bounds 1230 c.setBitmap(null); 1231 } 1232 } 1233 1234 private Bitmap getShortcutPreview(ResolveInfo info, int maxWidth, int maxHeight) { 1235 Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 1236 final Canvas c = mCachedShortcutPreviewCanvas.get(); 1237 if (tempBitmap == null || 1238 tempBitmap.getWidth() != maxWidth || 1239 tempBitmap.getHeight() != maxHeight) { 1240 tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1241 mCachedShortcutPreviewBitmap.set(tempBitmap); 1242 } else { 1243 c.setBitmap(tempBitmap); 1244 c.drawColor(0, PorterDuff.Mode.CLEAR); 1245 c.setBitmap(null); 1246 } 1247 // Render the icon 1248 Drawable icon = mIconCache.getFullResIcon(info); 1249 1250 int paddingTop = 1251 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 1252 int paddingLeft = 1253 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 1254 int paddingRight = 1255 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 1256 1257 int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 1258 1259 renderDrawableToBitmap( 1260 icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 1261 1262 Bitmap preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1263 c.setBitmap(preview); 1264 Paint p = mCachedShortcutPreviewPaint.get(); 1265 if (p == null) { 1266 p = new Paint(); 1267 ColorMatrix colorMatrix = new ColorMatrix(); 1268 colorMatrix.setSaturation(0); 1269 p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 1270 p.setAlpha((int) (255 * 0.06f)); 1271 //float density = 1f; 1272 //p.setMaskFilter(new BlurMaskFilter(15*density, BlurMaskFilter.Blur.NORMAL)); 1273 mCachedShortcutPreviewPaint.set(p); 1274 } 1275 c.drawBitmap(tempBitmap, 0, 0, p); 1276 c.setBitmap(null); 1277 1278 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 1279 1280 return preview; 1281 } 1282 1283 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, 1284 int iconId, int cellHSpan, int cellVSpan, int maxWidth, 1285 int maxHeight) { 1286 // Load the preview image if possible 1287 String packageName = provider.getPackageName(); 1288 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1289 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1290 1291 Drawable drawable = null; 1292 if (previewImage != 0) { 1293 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1294 if (drawable == null) { 1295 Log.w(TAG, "Can't load widget preview drawable 0x" + 1296 Integer.toHexString(previewImage) + " for provider: " + provider); 1297 } 1298 } 1299 1300 int bitmapWidth; 1301 int bitmapHeight; 1302 Bitmap defaultPreview = null; 1303 boolean widgetPreviewExists = (drawable != null); 1304 if (widgetPreviewExists) { 1305 bitmapWidth = drawable.getIntrinsicWidth(); 1306 bitmapHeight = drawable.getIntrinsicHeight(); 1307 } else { 1308 // Generate a preview image if we couldn't load one 1309 if (cellHSpan < 1) cellHSpan = 1; 1310 if (cellVSpan < 1) cellVSpan = 1; 1311 1312 BitmapDrawable previewDrawable = (BitmapDrawable) getResources() 1313 .getDrawable(R.drawable.widget_preview_tile); 1314 final int previewDrawableWidth = previewDrawable 1315 .getIntrinsicWidth(); 1316 final int previewDrawableHeight = previewDrawable 1317 .getIntrinsicHeight(); 1318 bitmapWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 1319 bitmapHeight = previewDrawableHeight * cellVSpan; 1320 1321 defaultPreview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1322 Config.ARGB_8888); 1323 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1324 c.setBitmap(defaultPreview); 1325 previewDrawable.setBounds(0, 0, bitmapWidth, bitmapHeight); 1326 previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 1327 Shader.TileMode.REPEAT); 1328 previewDrawable.draw(c); 1329 c.setBitmap(null); 1330 1331 // Draw the icon in the top left corner 1332 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1333 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1334 float iconScale = Math.min((float) smallestSide 1335 / (mAppIconSize + 2 * minOffset), 1f); 1336 1337 try { 1338 Drawable icon = null; 1339 int hoffset = 1340 (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 1341 int yoffset = 1342 (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 1343 if (iconId > 0) 1344 icon = mIconCache.getFullResIcon(packageName, iconId); 1345 if (icon != null) { 1346 renderDrawableToBitmap(icon, defaultPreview, hoffset, 1347 yoffset, (int) (mAppIconSize * iconScale), 1348 (int) (mAppIconSize * iconScale)); 1349 } 1350 } catch (Resources.NotFoundException e) { 1351 } 1352 } 1353 1354 // Scale to fit width only - let the widget preview be clipped in the 1355 // vertical dimension 1356 float scale = 1f; 1357 if (bitmapWidth > maxWidth) { 1358 scale = maxWidth / (float) bitmapWidth; 1359 } 1360 if (scale != 1f) { 1361 bitmapWidth = (int) (scale * bitmapWidth); 1362 bitmapHeight = (int) (scale * bitmapHeight); 1363 } 1364 1365 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1366 Config.ARGB_8888); 1367 1368 // Draw the scaled preview into the final bitmap 1369 if (widgetPreviewExists) { 1370 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, 1371 bitmapHeight); 1372 } else { 1373 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1374 final Rect src = mCachedAppWidgetPreviewSrcRect.get(); 1375 final Rect dest = mCachedAppWidgetPreviewDestRect.get(); 1376 c.setBitmap(preview); 1377 src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); 1378 dest.set(0, 0, preview.getWidth(), preview.getHeight()); 1379 1380 Paint p = mCachedAppWidgetPreviewPaint.get(); 1381 if (p == null) { 1382 p = new Paint(); 1383 p.setFilterBitmap(true); 1384 mCachedAppWidgetPreviewPaint.set(p); 1385 } 1386 c.drawBitmap(defaultPreview, src, dest, p); 1387 c.setBitmap(null); 1388 } 1389 return preview; 1390 } 1391 1392 public void syncWidgetPageItems(final int page, final boolean immediate) { 1393 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1394 1395 // Calculate the dimensions of each cell we are giving to each widget 1396 final ArrayList<Object> items = new ArrayList<Object>(); 1397 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1398 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1399 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1400 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1401 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1402 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1403 1404 // Prepare the set of widgets to load previews for in the background 1405 int offset = (page - mNumAppsPages) * numItemsPerPage; 1406 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1407 items.add(mWidgets.get(i)); 1408 } 1409 1410 // Prepopulate the pages with the other widget info, and fill in the previews later 1411 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1412 layout.setColumnCount(layout.getCellCountX()); 1413 for (int i = 0; i < items.size(); ++i) { 1414 Object rawInfo = items.get(i); 1415 PendingAddItemInfo createItemInfo = null; 1416 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1417 R.layout.apps_customize_widget, layout, false); 1418 if (rawInfo instanceof AppWidgetProviderInfo) { 1419 // Fill in the widget information 1420 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1421 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1422 1423 // Determine the widget spans and min resize spans. 1424 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1425 createItemInfo.spanX = spanXY[0]; 1426 createItemInfo.spanY = spanXY[1]; 1427 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1428 createItemInfo.minSpanX = minSpanXY[0]; 1429 createItemInfo.minSpanY = minSpanXY[1]; 1430 1431 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1432 widget.setTag(createItemInfo); 1433 widget.setShortPressListener(this); 1434 } else if (rawInfo instanceof ResolveInfo) { 1435 // Fill in the shortcuts information 1436 ResolveInfo info = (ResolveInfo) rawInfo; 1437 createItemInfo = new PendingAddShortcutInfo(info.activityInfo); 1438 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1439 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1440 info.activityInfo.name); 1441 widget.applyFromResolveInfo(mPackageManager, info); 1442 widget.setTag(createItemInfo); 1443 } 1444 widget.setOnClickListener(this); 1445 widget.setOnLongClickListener(this); 1446 widget.setOnTouchListener(this); 1447 widget.setOnKeyListener(this); 1448 1449 // Layout each widget 1450 int ix = i % mWidgetCountX; 1451 int iy = i / mWidgetCountX; 1452 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1453 GridLayout.spec(iy, GridLayout.LEFT), 1454 GridLayout.spec(ix, GridLayout.TOP)); 1455 lp.width = cellWidth; 1456 lp.height = cellHeight; 1457 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1458 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1459 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1460 layout.addView(widget, lp); 1461 } 1462 1463 // wait until a call on onLayout to start loading, because 1464 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1465 // TODO: can we do a measure/layout immediately? 1466 layout.setOnLayoutListener(new Runnable() { 1467 public void run() { 1468 // Load the widget previews 1469 int maxPreviewWidth = cellWidth; 1470 int maxPreviewHeight = cellHeight; 1471 if (layout.getChildCount() > 0) { 1472 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1473 int[] maxSize = w.getPreviewSize(); 1474 maxPreviewWidth = maxSize[0]; 1475 maxPreviewHeight = maxSize[1]; 1476 } 1477 if (immediate) { 1478 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1479 maxPreviewWidth, maxPreviewHeight, null, null); 1480 loadWidgetPreviewsInBackground(null, data); 1481 onSyncWidgetPageItems(data); 1482 } else { 1483 if (mInTransition) { 1484 mDeferredPrepareLoadWidgetPreviewsTasks.add(this); 1485 } else { 1486 prepareLoadWidgetPreviewsTask(page, items, 1487 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1488 } 1489 } 1490 } 1491 }); 1492 } 1493 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1494 AsyncTaskPageData data) { 1495 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1496 // previews synchronously 1497 if (task != null) { 1498 // Ensure that this task starts running at the correct priority 1499 task.syncThreadPriority(); 1500 } 1501 1502 // Load each of the widget/shortcut previews 1503 ArrayList<Object> items = data.items; 1504 ArrayList<Bitmap> images = data.generatedImages; 1505 int count = items.size(); 1506 for (int i = 0; i < count; ++i) { 1507 if (task != null) { 1508 // Ensure we haven't been cancelled yet 1509 if (task.isCancelled()) break; 1510 // Before work on each item, ensure that this task is running at the correct 1511 // priority 1512 task.syncThreadPriority(); 1513 } 1514 1515 Object rawInfo = items.get(i); 1516 if (rawInfo instanceof AppWidgetProviderInfo) { 1517 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1518 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1519 1520 int maxWidth = Math.min(data.maxImageWidth, 1521 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1522 int maxHeight = Math.min(data.maxImageHeight, 1523 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1524 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1525 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1526 images.add(b); 1527 } else if (rawInfo instanceof ResolveInfo) { 1528 // Fill in the shortcuts information 1529 ResolveInfo info = (ResolveInfo) rawInfo; 1530 images.add(getShortcutPreview(info, data.maxImageWidth, data.maxImageHeight)); 1531 } 1532 } 1533 } 1534 1535 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1536 if (mInTransition) { 1537 mDeferredSyncWidgetPageItems.add(data); 1538 return; 1539 } 1540 try { 1541 int page = data.page; 1542 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1543 1544 ArrayList<Object> items = data.items; 1545 int count = items.size(); 1546 for (int i = 0; i < count; ++i) { 1547 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1548 if (widget != null) { 1549 Bitmap preview = data.generatedImages.get(i); 1550 widget.applyPreview(new FastBitmapDrawable(preview), i); 1551 } 1552 } 1553 1554 layout.createHardwareLayer(); 1555 invalidate(); 1556 1557 // Update all thread priorities 1558 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1559 while (iter.hasNext()) { 1560 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1561 int pageIndex = task.page; 1562 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1563 } 1564 } finally { 1565 data.cleanup(false); 1566 } 1567 } 1568 1569 @Override 1570 public void syncPages() { 1571 removeAllViews(); 1572 cancelAllTasks(); 1573 1574 Context context = getContext(); 1575 for (int j = 0; j < mNumWidgetPages; ++j) { 1576 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1577 mWidgetCountY); 1578 setupPage(layout); 1579 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1580 LayoutParams.MATCH_PARENT)); 1581 } 1582 1583 for (int i = 0; i < mNumAppsPages; ++i) { 1584 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1585 setupPage(layout); 1586 addView(layout); 1587 } 1588 } 1589 1590 @Override 1591 public void syncPageItems(int page, boolean immediate) { 1592 if (page < mNumAppsPages) { 1593 syncAppsPageItems(page, immediate); 1594 } else { 1595 syncWidgetPageItems(page, immediate); 1596 } 1597 } 1598 1599 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1600 // it is in the z-order. This is important to insure touch events are handled correctly. 1601 View getPageAt(int index) { 1602 return getChildAt(indexToPage(index)); 1603 } 1604 1605 @Override 1606 protected int indexToPage(int index) { 1607 return getChildCount() - index - 1; 1608 } 1609 1610 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1611 @Override 1612 protected void screenScrolled(int screenCenter) { 1613 super.screenScrolled(screenCenter); 1614 1615 for (int i = 0; i < getChildCount(); i++) { 1616 View v = getPageAt(i); 1617 if (v != null) { 1618 float scrollProgress = getScrollProgress(screenCenter, v, i); 1619 1620 float interpolatedProgress = 1621 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1622 float scale = (1 - interpolatedProgress) + 1623 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1624 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1625 1626 float alpha; 1627 1628 if (scrollProgress < 0) { 1629 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1630 1 - Math.abs(scrollProgress)) : 1.0f; 1631 } else { 1632 // On large screens we need to fade the page as it nears its leftmost position 1633 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1634 } 1635 1636 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1637 int pageWidth = v.getMeasuredWidth(); 1638 int pageHeight = v.getMeasuredHeight(); 1639 1640 if (PERFORM_OVERSCROLL_ROTATION) { 1641 if (i == 0 && scrollProgress < 0) { 1642 // Overscroll to the left 1643 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1644 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1645 scale = 1.0f; 1646 alpha = 1.0f; 1647 // On the first page, we don't want the page to have any lateral motion 1648 translationX = 0; 1649 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1650 // Overscroll to the right 1651 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1652 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1653 scale = 1.0f; 1654 alpha = 1.0f; 1655 // On the last page, we don't want the page to have any lateral motion. 1656 translationX = 0; 1657 } else { 1658 v.setPivotY(pageHeight / 2.0f); 1659 v.setPivotX(pageWidth / 2.0f); 1660 v.setRotationY(0f); 1661 } 1662 } 1663 1664 v.setTranslationX(translationX); 1665 v.setScaleX(scale); 1666 v.setScaleY(scale); 1667 v.setAlpha(alpha); 1668 1669 // If the view has 0 alpha, we set it to be invisible so as to prevent 1670 // it from accepting touches 1671 if (alpha == 0) { 1672 v.setVisibility(INVISIBLE); 1673 } else if (v.getVisibility() != VISIBLE) { 1674 v.setVisibility(VISIBLE); 1675 } 1676 } 1677 } 1678 } 1679 1680 protected void overScroll(float amount) { 1681 acceleratedOverScroll(amount); 1682 } 1683 1684 /** 1685 * Used by the parent to get the content width to set the tab bar to 1686 * @return 1687 */ 1688 public int getPageContentWidth() { 1689 return mContentWidth; 1690 } 1691 1692 @Override 1693 protected void onPageEndMoving() { 1694 super.onPageEndMoving(); 1695 mForceDrawAllChildrenNextFrame = true; 1696 // We reset the save index when we change pages so that it will be recalculated on next 1697 // rotation 1698 mSaveInstanceStateItemIndex = -1; 1699 } 1700 1701 /* 1702 * AllAppsView implementation 1703 */ 1704 public void setup(Launcher launcher, DragController dragController) { 1705 mLauncher = launcher; 1706 mDragController = dragController; 1707 } 1708 1709 /** 1710 * We should call thise method whenever the core data changes (mApps, mWidgets) so that we can 1711 * appropriately determine when to invalidate the PagedView page data. In cases where the data 1712 * has yet to be set, we can requestLayout() and wait for onDataReady() to be called in the 1713 * next onMeasure() pass, which will trigger an invalidatePageData() itself. 1714 */ 1715 private void invalidateOnDataChange() { 1716 if (!isDataReady()) { 1717 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1718 // request a layout to trigger the page data when ready. 1719 requestLayout(); 1720 } else { 1721 cancelAllTasks(); 1722 invalidatePageData(); 1723 } 1724 } 1725 1726 public void setApps(ArrayList<ApplicationInfo> list) { 1727 mApps = list; 1728 Collections.sort(mApps, LauncherModel.getAppNameComparator()); 1729 updatePageCounts(); 1730 invalidateOnDataChange(); 1731 } 1732 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1733 // We add it in place, in alphabetical order 1734 int count = list.size(); 1735 for (int i = 0; i < count; ++i) { 1736 ApplicationInfo info = list.get(i); 1737 int index = Collections.binarySearch(mApps, info, LauncherModel.getAppNameComparator()); 1738 if (index < 0) { 1739 mApps.add(-(index + 1), info); 1740 } 1741 } 1742 } 1743 public void addApps(ArrayList<ApplicationInfo> list) { 1744 addAppsWithoutInvalidate(list); 1745 updatePageCounts(); 1746 invalidateOnDataChange(); 1747 } 1748 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1749 ComponentName removeComponent = item.intent.getComponent(); 1750 int length = list.size(); 1751 for (int i = 0; i < length; ++i) { 1752 ApplicationInfo info = list.get(i); 1753 if (info.intent.getComponent().equals(removeComponent)) { 1754 return i; 1755 } 1756 } 1757 return -1; 1758 } 1759 private int findAppByPackage(List<ApplicationInfo> list, String packageName) { 1760 int length = list.size(); 1761 for (int i = 0; i < length; ++i) { 1762 ApplicationInfo info = list.get(i); 1763 if (ItemInfo.getPackageName(info.intent).equals(packageName)) { 1764 return i; 1765 } 1766 } 1767 return -1; 1768 } 1769 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1770 // loop through all the apps and remove apps that have the same component 1771 int length = list.size(); 1772 for (int i = 0; i < length; ++i) { 1773 ApplicationInfo info = list.get(i); 1774 int removeIndex = findAppByComponent(mApps, info); 1775 if (removeIndex > -1) { 1776 mApps.remove(removeIndex); 1777 } 1778 } 1779 } 1780 private void removeAppsWithPackageNameWithoutInvalidate(ArrayList<String> packageNames) { 1781 // loop through all the package names and remove apps that have the same package name 1782 for (String pn : packageNames) { 1783 int removeIndex = findAppByPackage(mApps, pn); 1784 while (removeIndex > -1) { 1785 mApps.remove(removeIndex); 1786 removeIndex = findAppByPackage(mApps, pn); 1787 } 1788 } 1789 } 1790 public void removeApps(ArrayList<String> packageNames) { 1791 removeAppsWithPackageNameWithoutInvalidate(packageNames); 1792 updatePageCounts(); 1793 invalidateOnDataChange(); 1794 } 1795 public void updateApps(ArrayList<ApplicationInfo> list) { 1796 // We remove and re-add the updated applications list because it's properties may have 1797 // changed (ie. the title), and this will ensure that the items will be in their proper 1798 // place in the list. 1799 removeAppsWithoutInvalidate(list); 1800 addAppsWithoutInvalidate(list); 1801 updatePageCounts(); 1802 invalidateOnDataChange(); 1803 } 1804 1805 public void reset() { 1806 // If we have reset, then we should not continue to restore the previous state 1807 mSaveInstanceStateItemIndex = -1; 1808 1809 AppsCustomizeTabHost tabHost = getTabHost(); 1810 String tag = tabHost.getCurrentTabTag(); 1811 if (tag != null) { 1812 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1813 tabHost.setCurrentTabFromContent(ContentType.Applications); 1814 } 1815 } 1816 1817 if (mCurrentPage != 0) { 1818 invalidatePageData(0); 1819 } 1820 } 1821 1822 private AppsCustomizeTabHost getTabHost() { 1823 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1824 } 1825 1826 public void dumpState() { 1827 // TODO: Dump information related to current list of Applications, Widgets, etc. 1828 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1829 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1830 } 1831 1832 private void dumpAppWidgetProviderInfoList(String tag, String label, 1833 ArrayList<Object> list) { 1834 Log.d(tag, label + " size=" + list.size()); 1835 for (Object i: list) { 1836 if (i instanceof AppWidgetProviderInfo) { 1837 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1838 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1839 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1840 + " initialLayout=" + info.initialLayout 1841 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1842 } else if (i instanceof ResolveInfo) { 1843 ResolveInfo info = (ResolveInfo) i; 1844 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1845 + info.icon); 1846 } 1847 } 1848 } 1849 1850 public void surrender() { 1851 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1852 // should stop this now. 1853 1854 // Stop all background tasks 1855 cancelAllTasks(); 1856 } 1857 1858 @Override 1859 public void iconPressed(PagedViewIcon icon) { 1860 // Reset the previously pressed icon and store a reference to the pressed icon so that 1861 // we can reset it on return to Launcher (in Launcher.onResume()) 1862 if (mPressedIcon != null) { 1863 mPressedIcon.resetDrawableState(); 1864 } 1865 mPressedIcon = icon; 1866 } 1867 1868 public void resetDrawableState() { 1869 if (mPressedIcon != null) { 1870 mPressedIcon.resetDrawableState(); 1871 mPressedIcon = null; 1872 } 1873 } 1874 1875 /* 1876 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1877 * widget previews in the background with the AsyncTasks. 1878 */ 1879 final static int sLookBehindPageCount = 2; 1880 final static int sLookAheadPageCount = 2; 1881 protected int getAssociatedLowerPageBound(int page) { 1882 final int count = getChildCount(); 1883 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1884 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1885 return windowMinIndex; 1886 } 1887 protected int getAssociatedUpperPageBound(int page) { 1888 final int count = getChildCount(); 1889 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1890 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1891 count - 1); 1892 return windowMaxIndex; 1893 } 1894 1895 @Override 1896 protected String getCurrentPageDescription() { 1897 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1898 int stringId = R.string.default_scroll_format; 1899 int count = 0; 1900 1901 if (page < mNumAppsPages) { 1902 stringId = R.string.apps_customize_apps_scroll_format; 1903 count = mNumAppsPages; 1904 } else { 1905 page -= mNumAppsPages; 1906 stringId = R.string.apps_customize_widgets_scroll_format; 1907 count = mNumWidgetPages; 1908 } 1909 1910 return String.format(getContext().getString(stringId), page + 1, count); 1911 } 1912} 1913