AppsCustomizePagedView.java revision 70fc438583779ef903541bf9ec546a8235a18785
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.ObjectAnimator; 21import android.animation.ValueAnimator; 22import android.appwidget.AppWidgetManager; 23import android.appwidget.AppWidgetProviderInfo; 24import android.content.ComponentName; 25import android.content.Context; 26import android.content.Intent; 27import android.content.pm.ActivityInfo; 28import android.content.pm.PackageManager; 29import android.content.pm.ResolveInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.graphics.Bitmap; 34import android.graphics.Bitmap.Config; 35import android.graphics.Canvas; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.drawable.Drawable; 39import android.os.AsyncTask; 40import android.os.Process; 41import android.util.AttributeSet; 42import android.util.Log; 43import android.view.Gravity; 44import android.view.LayoutInflater; 45import android.view.MotionEvent; 46import android.view.View; 47import android.view.ViewGroup; 48import android.view.animation.AccelerateInterpolator; 49import android.widget.GridLayout; 50import android.widget.ImageView; 51import android.widget.Toast; 52 53import com.android.launcher.R; 54import com.android.launcher2.DropTarget.DragObject; 55 56import java.util.ArrayList; 57import java.util.Collections; 58import java.util.Iterator; 59import java.util.List; 60 61/** 62 * A simple callback interface which also provides the results of the task. 63 */ 64interface AsyncTaskCallback { 65 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 66} 67 68/** 69 * The data needed to perform either of the custom AsyncTasks. 70 */ 71class AsyncTaskPageData { 72 enum Type { 73 LoadWidgetPreviewData, 74 LoadHolographicIconsData 75 } 76 77 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 78 AsyncTaskCallback postR) { 79 page = p; 80 items = l; 81 sourceImages = si; 82 generatedImages = new ArrayList<Bitmap>(); 83 cellWidth = cellHeight = -1; 84 doInBackgroundCallback = bgR; 85 postExecuteCallback = postR; 86 } 87 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, int ccx, AsyncTaskCallback bgR, 88 AsyncTaskCallback postR) { 89 page = p; 90 items = l; 91 generatedImages = new ArrayList<Bitmap>(); 92 cellWidth = cw; 93 cellHeight = ch; 94 cellCountX = ccx; 95 doInBackgroundCallback = bgR; 96 postExecuteCallback = postR; 97 } 98 int page; 99 ArrayList<Object> items; 100 ArrayList<Bitmap> sourceImages; 101 ArrayList<Bitmap> generatedImages; 102 int cellWidth; 103 int cellHeight; 104 int cellCountX; 105 AsyncTaskCallback doInBackgroundCallback; 106 AsyncTaskCallback postExecuteCallback; 107} 108 109/** 110 * A generic template for an async task used in AppsCustomize. 111 */ 112class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 113 AppsCustomizeAsyncTask(int p, AppsCustomizePagedView.ContentType t, AsyncTaskPageData.Type ty) { 114 page = p; 115 pageContentType = t; 116 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 117 dataType = ty; 118 } 119 @Override 120 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 121 if (params.length != 1) return null; 122 // Load each of the widget previews in the background 123 params[0].doInBackgroundCallback.run(this, params[0]); 124 return params[0]; 125 } 126 @Override 127 protected void onPostExecute(AsyncTaskPageData result) { 128 // All the widget previews are loaded, so we can just callback to inflate the page 129 result.postExecuteCallback.run(this, result); 130 } 131 132 void setThreadPriority(int p) { 133 threadPriority = p; 134 } 135 void syncThreadPriority() { 136 Process.setThreadPriority(threadPriority); 137 } 138 139 // The page that this async task is associated with 140 AsyncTaskPageData.Type dataType; 141 int page; 142 AppsCustomizePagedView.ContentType pageContentType; 143 int threadPriority; 144} 145 146/** 147 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 148 */ 149public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 150 AllAppsView, View.OnClickListener, DragSource { 151 static final String LOG_TAG = "AppsCustomizePagedView"; 152 153 /** 154 * The different content types that this paged view can show. 155 */ 156 public enum ContentType { 157 Applications, 158 Widgets 159 } 160 161 // Refs 162 private Launcher mLauncher; 163 private DragController mDragController; 164 private final LayoutInflater mLayoutInflater; 165 private final PackageManager mPackageManager; 166 167 // Content 168 private ContentType mContentType; 169 private ArrayList<ApplicationInfo> mApps; 170 private ArrayList<Object> mWidgets; 171 172 // Caching 173 private Canvas mCanvas; 174 private Drawable mDefaultWidgetBackground; 175 private IconCache mIconCache; 176 private int mDragViewMultiplyColor; 177 178 // Dimens 179 private int mContentWidth; 180 private int mAppIconSize; 181 private int mMaxWidgetSpan, mMinWidgetSpan; 182 private int mWidgetCountX, mWidgetCountY; 183 private int mWidgetWidthGap, mWidgetHeightGap; 184 private final int mWidgetPreviewIconPaddedDimension; 185 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 186 private PagedViewCellLayout mWidgetSpacingLayout; 187 188 // Previews & outlines 189 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 190 private HolographicOutlineHelper mHolographicOutlineHelper; 191 192 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 193 super(context, attrs); 194 mLayoutInflater = LayoutInflater.from(context); 195 mPackageManager = context.getPackageManager(); 196 mContentType = ContentType.Applications; 197 mApps = new ArrayList<ApplicationInfo>(); 198 mWidgets = new ArrayList<Object>(); 199 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 200 mHolographicOutlineHelper = new HolographicOutlineHelper(); 201 mCanvas = new Canvas(); 202 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 203 204 // Save the default widget preview background 205 Resources resources = context.getResources(); 206 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 207 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 208 mDragViewMultiplyColor = resources.getColor(R.color.drag_view_multiply_color); 209 210 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PagedView, 0, 0); 211 // TODO-APPS_CUSTOMIZE: remove these unnecessary attrs after 212 mCellCountX = a.getInt(R.styleable.PagedView_cellCountX, 6); 213 mCellCountY = a.getInt(R.styleable.PagedView_cellCountY, 4); 214 a.recycle(); 215 a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 216 mWidgetWidthGap = 217 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 218 mWidgetHeightGap = 219 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 220 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 221 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 222 a.recycle(); 223 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 224 225 // The max widget span is the length N, such that NxN is the largest bounds that the widget 226 // preview can be before applying the widget scaling 227 mMinWidgetSpan = 1; 228 mMaxWidgetSpan = 3; 229 230 // The padding on the non-matched dimension for the default widget preview icons 231 // (top + bottom) 232 mWidgetPreviewIconPaddedDimension = 233 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 234 mFadeInAdjacentScreens = LauncherApplication.isScreenLarge(); 235 } 236 237 @Override 238 protected void init() { 239 super.init(); 240 mCenterPagesVertically = false; 241 242 Context context = getContext(); 243 Resources r = context.getResources(); 244 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 245 } 246 247 @Override 248 protected void onWallpaperTap(MotionEvent ev) { 249 int action = ev.getAction(); 250 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 251 // Dismiss AppsCustomize if we tap 252 mLauncher.showWorkspace(true); 253 } 254 } 255 256 /** 257 * This differs from isDataReady as this is the test done if isDataReady is not set. 258 */ 259 private boolean testDataReady() { 260 // We only do this test once, and we default to the Applications page, so we only really 261 // have to wait for there to be apps. 262 return !mApps.isEmpty(); 263 } 264 265 protected void onDataReady(int width, int height) { 266 // Note that we transpose the counts in portrait so that we get a similar layout 267 boolean isLandscape = getResources().getConfiguration().orientation == 268 Configuration.ORIENTATION_LANDSCAPE; 269 int maxCellCountX = Integer.MAX_VALUE; 270 int maxCellCountY = Integer.MAX_VALUE; 271 if (LauncherApplication.isScreenLarge()) { 272 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 273 LauncherModel.getCellCountY()); 274 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 275 LauncherModel.getCellCountX()); 276 } 277 278 // Now that the data is ready, we can calculate the content width, the number of cells to 279 // use for each page 280 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 281 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 282 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 283 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 284 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 285 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 286 mWidgetCountX = Math.max(1, (int) Math.round(mCellCountX / 2f)); 287 mWidgetCountY = Math.max(1, (int) Math.round(mCellCountY / 3f)); 288 289 // Force a measure to update recalculate the gaps 290 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 291 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 292 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 293 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 294 invalidatePageData(); 295 } 296 297 @Override 298 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 299 int width = MeasureSpec.getSize(widthMeasureSpec); 300 int height = MeasureSpec.getSize(heightMeasureSpec); 301 if (!isDataReady()) { 302 if (testDataReady()) { 303 setDataIsReady(); 304 setMeasuredDimension(width, height); 305 onDataReady(width, height); 306 } 307 } 308 309 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 310 } 311 312 /** Removes and returns the ResolveInfo with the specified ComponentName */ 313 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 314 ComponentName cn) { 315 Iterator<ResolveInfo> iter = list.iterator(); 316 while (iter.hasNext()) { 317 ResolveInfo rinfo = iter.next(); 318 ActivityInfo info = rinfo.activityInfo; 319 ComponentName c = new ComponentName(info.packageName, info.name); 320 if (c.equals(cn)) { 321 iter.remove(); 322 return rinfo; 323 } 324 } 325 return null; 326 } 327 328 public void onPackagesUpdated() { 329 // Get the list of widgets and shortcuts 330 boolean wasEmpty = mWidgets.isEmpty(); 331 mWidgets.clear(); 332 List<AppWidgetProviderInfo> widgets = 333 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 334 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 335 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 336 mWidgets.addAll(widgets); 337 mWidgets.addAll(shortcuts); 338 Collections.sort(mWidgets, 339 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 340 341 if (wasEmpty) { 342 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 343 // a layout to do this test and invalidate the page data when ready. 344 if (testDataReady()) requestLayout(); 345 } else { 346 invalidatePageData(); 347 } 348 } 349 350 @Override 351 public void onClick(View v) { 352 // When we have exited all apps or are in transition, disregard clicks 353 if (!mLauncher.isAllAppsCustomizeOpen() || 354 mLauncher.getWorkspace().isSwitchingState()) return; 355 356 if (v instanceof PagedViewIcon) { 357 // Animate some feedback to the click 358 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 359 animateClickFeedback(v, new Runnable() { 360 @Override 361 public void run() { 362 mLauncher.startActivitySafely(appInfo.intent, appInfo); 363 } 364 }); 365 } else if (v instanceof PagedViewWidget) { 366 // Let the user know that they have to long press to add a widget 367 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 368 Toast.LENGTH_SHORT).show(); 369 370 // Create a little animation to show that the widget can move 371 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 372 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 373 AnimatorSet bounce = new AnimatorSet(); 374 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 375 tyuAnim.setDuration(125); 376 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 377 tydAnim.setDuration(100); 378 bounce.play(tyuAnim).before(tydAnim); 379 bounce.setInterpolator(new AccelerateInterpolator()); 380 bounce.start(); 381 } 382 } 383 384 /* 385 * PagedViewWithDraggableItems implementation 386 */ 387 @Override 388 protected void determineDraggingStart(android.view.MotionEvent ev) { 389 // Disable dragging by pulling an app down for now. 390 } 391 392 private void beginDraggingApplication(View v) { 393 mLauncher.getWorkspace().onDragStartedWithItem(v); 394 mLauncher.getWorkspace().beginDragShared(v, this); 395 } 396 397 private void beginDraggingWidget(View v) { 398 // Get the widget preview as the drag representation 399 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 400 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 401 402 // Compose the drag image 403 Bitmap b; 404 Drawable preview = image.getDrawable(); 405 int w = preview.getIntrinsicWidth(); 406 int h = preview.getIntrinsicHeight(); 407 if (createItemInfo instanceof PendingAddWidgetInfo) { 408 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 409 int[] spanXY = CellLayout.rectToCell(getResources(), 410 createWidgetInfo.minWidth, createWidgetInfo.minHeight, null); 411 createItemInfo.spanX = spanXY[0]; 412 createItemInfo.spanY = spanXY[1]; 413 414 b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 415 renderDrawableToBitmap(preview, b, 0, 0, w, h, 1, 1, mDragViewMultiplyColor); 416 } else { 417 // Workaround for the fact that we don't keep the original ResolveInfo associated with 418 // the shortcut around. To get the icon, we just render the preview image (which has 419 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 420 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 421 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 422 mCanvas.setBitmap(b); 423 mCanvas.save(); 424 preview.draw(mCanvas); 425 mCanvas.restore(); 426 mCanvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 427 mCanvas.setBitmap(null); 428 createItemInfo.spanX = createItemInfo.spanY = 1; 429 } 430 431 // Start the drag 432 mLauncher.lockScreenOrientation(); 433 mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, 434 createItemInfo.spanY, b); 435 mDragController.startDrag(image, b, this, createItemInfo, 436 DragController.DRAG_ACTION_COPY, null); 437 b.recycle(); 438 } 439 @Override 440 protected boolean beginDragging(View v) { 441 if (!super.beginDragging(v)) return false; 442 443 // Go into spring loaded mode (must happen before we startDrag()) 444 int currentPageIndex = mLauncher.getWorkspace().getCurrentPage(); 445 CellLayout currentPage = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPageIndex); 446 mLauncher.enterSpringLoadedDragMode(currentPage); 447 448 if (v instanceof PagedViewIcon) { 449 beginDraggingApplication(v); 450 } else if (v instanceof PagedViewWidget) { 451 beginDraggingWidget(v); 452 } 453 return true; 454 } 455 private void endDragging(View target, boolean success) { 456 mLauncher.getWorkspace().onDragStopped(success); 457 if (!success || (target != mLauncher.getWorkspace() && 458 !(target instanceof DeleteDropTarget))) { 459 // Exit spring loaded mode if we have not successfully dropped or have not handled the 460 // drop in Workspace 461 mLauncher.exitSpringLoadedDragMode(); 462 } 463 mLauncher.unlockScreenOrientation(); 464 465 } 466 467 @Override 468 public void onDropCompleted(View target, DragObject d, boolean success) { 469 endDragging(target, success); 470 471 // Display an error message if the drag failed due to there not being enough space on the 472 // target layout we were dropping on. 473 if (!success) { 474 boolean showOutOfSpaceMessage = false; 475 if (target instanceof Workspace) { 476 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 477 Workspace workspace = (Workspace) target; 478 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 479 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 480 if (layout != null) { 481 layout.calculateSpans(itemInfo); 482 showOutOfSpaceMessage = 483 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 484 } 485 } 486 // TODO-APPS_CUSTOMIZE: We need to handle this for folders as well later. 487 if (showOutOfSpaceMessage) { 488 mLauncher.showOutOfSpaceMessage(); 489 } 490 } 491 } 492 493 public void setContentType(ContentType type) { 494 mContentType = type; 495 invalidatePageData(0); 496 } 497 498 public boolean isContentType(ContentType type) { 499 return (mContentType == type); 500 } 501 502 public void setCurrentPageToWidgets() { 503 invalidatePageData(0); 504 } 505 506 /* 507 * Apps PagedView implementation 508 */ 509 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 510 int childCount = layout.getChildCount(); 511 for (int i = 0; i < childCount; ++i) { 512 layout.getChildAt(i).setVisibility(visibility); 513 } 514 } 515 private void setupPage(PagedViewCellLayout layout) { 516 layout.setCellCount(mCellCountX, mCellCountY); 517 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 518 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 519 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 520 521 // Note: We force a measure here to get around the fact that when we do layout calculations 522 // immediately after syncing, we don't have a proper width. That said, we already know the 523 // expected page width, so we can actually optimize by hiding all the TextView-based 524 // children that are expensive to measure, and let that happen naturally later. 525 setVisibilityOnChildren(layout, View.GONE); 526 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 527 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 528 layout.setMinimumWidth(getPageContentWidth()); 529 layout.measure(widthSpec, heightSpec); 530 setVisibilityOnChildren(layout, View.VISIBLE); 531 } 532 public void syncAppsPages() { 533 // Ensure that we have the right number of pages 534 Context context = getContext(); 535 int numPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 536 for (int i = 0; i < numPages; ++i) { 537 PagedViewCellLayout layout = new PagedViewCellLayout(context); 538 setupPage(layout); 539 addView(layout); 540 } 541 } 542 public void syncAppsPageItems(int page) { 543 // ensure that we have the right number of items on the pages 544 int numPages = getPageCount(); 545 int numCells = mCellCountX * mCellCountY; 546 int startIndex = page * numCells; 547 int endIndex = Math.min(startIndex + numCells, mApps.size()); 548 PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page); 549 550 layout.removeAllViewsOnPage(); 551 ArrayList<Object> items = new ArrayList<Object>(); 552 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 553 for (int i = startIndex; i < endIndex; ++i) { 554 ApplicationInfo info = mApps.get(i); 555 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 556 R.layout.apps_customize_application, layout, false); 557 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 558 icon.setOnClickListener(this); 559 icon.setOnLongClickListener(this); 560 icon.setOnTouchListener(this); 561 562 int index = i - startIndex; 563 int x = index % mCellCountX; 564 int y = index / mCellCountX; 565 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 566 567 items.add(info); 568 images.add(info.iconBitmap); 569 } 570 571 // Create the hardware layers 572 layout.allowHardwareLayerCreation(); 573 layout.createHardwareLayers(); 574 575 if (mFadeInAdjacentScreens) { 576 prepareGenerateHoloOutlinesTask(page, items, images); 577 } 578 } 579 580 /** 581 * Return the appropriate thread priority for loading for a given page (we give the current 582 * page much higher priority) 583 */ 584 private int getThreadPriorityForPage(int page) { 585 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 586 int pageDiff = Math.abs(page - mCurrentPage); 587 if (pageDiff <= 0) { 588 // return Process.THREAD_PRIORITY_DEFAULT; 589 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 590 } else if (pageDiff <= 1) { 591 // return Process.THREAD_PRIORITY_BACKGROUND; 592 return Process.THREAD_PRIORITY_DEFAULT; 593 } else { 594 // return Process.THREAD_PRIORITY_LOWEST; 595 return Process.THREAD_PRIORITY_DEFAULT; 596 } 597 } 598 /** 599 * Creates and executes a new AsyncTask to load a page of widget previews. 600 */ 601 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 602 int cellWidth, int cellHeight, int cellCountX) { 603 // Prune all tasks that are no longer needed 604 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 605 while (iter.hasNext()) { 606 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 607 int taskPage = task.page; 608 if ((taskPage == page) || 609 taskPage < getAssociatedLowerPageBound(mCurrentPage) || 610 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 611 task.cancel(false); 612 iter.remove(); 613 } else { 614 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 615 } 616 } 617 618 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 619 cellCountX, new AsyncTaskCallback() { 620 @Override 621 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 622 // Ensure that this task starts running at the correct priority 623 task.syncThreadPriority(); 624 625 // Load each of the widget/shortcut previews 626 ArrayList<Object> items = data.items; 627 ArrayList<Bitmap> images = data.generatedImages; 628 int count = items.size(); 629 int cellWidth = data.cellWidth; 630 int cellHeight = data.cellHeight; 631 for (int i = 0; i < count && !task.isCancelled(); ++i) { 632 // Before work on each item, ensure that this task is running at the correct 633 // priority 634 task.syncThreadPriority(); 635 636 Object rawInfo = items.get(i); 637 if (rawInfo instanceof AppWidgetProviderInfo) { 638 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 639 int[] cellSpans = CellLayout.rectToCell(getResources(), 640 info.minWidth, info.minHeight, null); 641 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 642 cellWidth, cellHeight)); 643 } else if (rawInfo instanceof ResolveInfo) { 644 // Fill in the shortcuts information 645 ResolveInfo info = (ResolveInfo) rawInfo; 646 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 647 } 648 } 649 } 650 }, 651 new AsyncTaskCallback() { 652 @Override 653 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 654 mRunningTasks.remove(task); 655 if (task.isCancelled()) return; 656 if (task.page > getPageCount()) return; 657 if (task.pageContentType != mContentType) return; 658 onSyncWidgetPageItems(data); 659 } 660 }); 661 662 // Ensure that the task is appropriately prioritized and runs in parallel 663 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, mContentType, 664 AsyncTaskPageData.Type.LoadWidgetPreviewData); 665 t.setThreadPriority(getThreadPriorityForPage(page)); 666 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 667 mRunningTasks.add(t); 668 } 669 /** 670 * Creates and executes a new AsyncTask to load the outlines for a page of content. 671 */ 672 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 673 ArrayList<Bitmap> images) { 674 // Prune old tasks for this page 675 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 676 while (iter.hasNext()) { 677 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 678 int taskPage = task.page; 679 if ((taskPage == page) && 680 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 681 task.cancel(false); 682 iter.remove(); 683 } 684 } 685 686 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 687 new AsyncTaskCallback() { 688 @Override 689 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 690 // Ensure that this task starts running at the correct priority 691 task.syncThreadPriority(); 692 693 ArrayList<Bitmap> images = data.generatedImages; 694 ArrayList<Bitmap> srcImages = data.sourceImages; 695 int count = srcImages.size(); 696 Canvas c = new Canvas(); 697 for (int i = 0; i < count && !task.isCancelled(); ++i) { 698 // Before work on each item, ensure that this task is running at the correct 699 // priority 700 task.syncThreadPriority(); 701 702 Bitmap b = srcImages.get(i); 703 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 704 Bitmap.Config.ARGB_8888); 705 706 c.setBitmap(outline); 707 c.save(); 708 c.drawBitmap(b, 0, 0, null); 709 c.restore(); 710 c.setBitmap(null); 711 712 images.add(outline); 713 } 714 } 715 }, 716 new AsyncTaskCallback() { 717 @Override 718 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 719 mRunningTasks.remove(task); 720 if (task.isCancelled()) return; 721 if (task.page > getPageCount()) return; 722 if (task.pageContentType != mContentType) return; 723 onHolographicPageItemsLoaded(data); 724 } 725 }); 726 727 // Ensure that the outline task always runs in the background, serially 728 AppsCustomizeAsyncTask t = 729 new AppsCustomizeAsyncTask(page, mContentType, 730 AsyncTaskPageData.Type.LoadHolographicIconsData); 731 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 732 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 733 mRunningTasks.add(t); 734 } 735 736 /* 737 * Widgets PagedView implementation 738 */ 739 private void setupPage(PagedViewGridLayout layout) { 740 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 741 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 742 743 // Note: We force a measure here to get around the fact that when we do layout calculations 744 // immediately after syncing, we don't have a proper width. 745 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 746 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 747 layout.setMinimumWidth(getPageContentWidth()); 748 layout.measure(widthSpec, heightSpec); 749 } 750 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 751 float scaleX, float scaleY) { 752 renderDrawableToBitmap(d, bitmap, x, y, w, h, scaleX, scaleY, 0xFFFFFFFF); 753 } 754 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 755 float scaleX, float scaleY, int multiplyColor) { 756 if (bitmap != null) { 757 Canvas c = new Canvas(bitmap); 758 c.scale(scaleX, scaleY); 759 Rect oldBounds = d.copyBounds(); 760 d.setBounds(x, y, x + w, y + h); 761 d.draw(c); 762 d.setBounds(oldBounds); // Restore the bounds 763 if (multiplyColor != 0xFFFFFFFF) { 764 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 765 } 766 c.setBitmap(null); 767 } 768 } 769 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 770 // Render the icon 771 Bitmap preview = Bitmap.createBitmap(cellWidth, mAppIconSize, Config.ARGB_8888); 772 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 773 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize, 1f, 1f); 774 return preview; 775 } 776 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 777 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 778 779 // Calculate the size of the drawable 780 cellHSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellHSpan)); 781 cellVSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellVSpan)); 782 int expectedWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 783 int expectedHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 784 785 // Scale down the bitmap to fit the space 786 float widgetPreviewScale = (float) cellWidth / expectedWidth; 787 expectedWidth = (int) (widgetPreviewScale * expectedWidth); 788 expectedHeight = (int) (widgetPreviewScale * expectedHeight); 789 790 // Load the preview image if possible 791 String packageName = info.provider.getPackageName(); 792 Drawable drawable = null; 793 Bitmap preview = null; 794 if (info.previewImage != 0) { 795 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 796 if (drawable == null) { 797 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 798 + " for provider: " + info.provider); 799 } else { 800 // Scale down the preview to the dimensions we want 801 int imageWidth = drawable.getIntrinsicWidth(); 802 int imageHeight = drawable.getIntrinsicHeight(); 803 float aspect = (float) imageWidth / imageHeight; 804 int newWidth = imageWidth; 805 int newHeight = imageHeight; 806 if (aspect > 1f) { 807 newWidth = expectedWidth; 808 newHeight = (int) (imageHeight * ((float) expectedWidth / imageWidth)); 809 } else { 810 newHeight = expectedHeight; 811 newWidth = (int) (imageWidth * ((float) expectedHeight / imageHeight)); 812 } 813 814 preview = Bitmap.createBitmap(newWidth, newHeight, Config.ARGB_8888); 815 renderDrawableToBitmap(drawable, preview, 0, 0, newWidth, newHeight, 1f, 1f); 816 } 817 } 818 819 // Generate a preview image if we couldn't load one 820 if (drawable == null) { 821 Resources resources = mLauncher.getResources(); 822 int bitmapWidth; 823 int bitmapHeight; 824 825 // Specify the dimensions of the bitmap (since we are using a default preview bg with 826 // the full icon, we only imply the aspect ratio of the widget) 827 if (cellHSpan == cellVSpan) { 828 bitmapWidth = bitmapHeight = cellWidth; 829 expectedWidth = expectedHeight = mWidgetPreviewIconPaddedDimension; 830 } else if (cellHSpan >= cellVSpan) { 831 bitmapWidth = expectedWidth = cellWidth; 832 bitmapHeight = expectedHeight = mWidgetPreviewIconPaddedDimension; 833 } else { 834 // Note that in vertical widgets, we might not have enough space due to the text 835 // label, so be conservative and use the width as a height bound 836 bitmapWidth = expectedWidth = mWidgetPreviewIconPaddedDimension; 837 bitmapHeight = expectedHeight = cellWidth; 838 } 839 840 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 841 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, expectedWidth, 842 expectedHeight, 1f, 1f); 843 844 // Draw the icon in the top left corner 845 try { 846 Drawable icon = null; 847 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 848 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 849 850 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 851 renderDrawableToBitmap(icon, preview, offset, offset, 852 mAppIconSize, mAppIconSize, 1f, 1f); 853 } catch (Resources.NotFoundException e) {} 854 } 855 return preview; 856 } 857 public void syncWidgetPages() { 858 // Ensure that we have the right number of pages 859 Context context = getContext(); 860 int numPages = (int) Math.ceil(mWidgets.size() / 861 (float) (mWidgetCountX * mWidgetCountY)); 862 for (int j = 0; j < numPages; ++j) { 863 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 864 mWidgetCountY); 865 setupPage(layout); 866 addView(layout); 867 } 868 } 869 public void syncWidgetPageItems(int page) { 870 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 871 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 872 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 873 874 // Calculate the dimensions of each cell we are giving to each widget 875 ArrayList<Object> items = new ArrayList<Object>(); 876 int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 877 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 878 int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 879 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 880 881 int offset = page * numItemsPerPage; 882 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 883 items.add(mWidgets.get(i)); 884 } 885 886 prepareLoadWidgetPreviewsTask(page, items, cellWidth, cellHeight, mWidgetCountX); 887 } 888 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 889 int page = data.page; 890 PagedViewGridLayout layout = (PagedViewGridLayout) getChildAt(page); 891 // Only set the column count once we have items 892 layout.setColumnCount(layout.getCellCountX()); 893 894 ArrayList<Object> items = data.items; 895 int count = items.size(); 896 int cellWidth = data.cellWidth; 897 int cellHeight = data.cellHeight; 898 int cellCountX = data.cellCountX; 899 for (int i = 0; i < count; ++i) { 900 Object rawInfo = items.get(i); 901 PendingAddItemInfo createItemInfo = null; 902 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 903 R.layout.apps_customize_widget, layout, false); 904 if (rawInfo instanceof AppWidgetProviderInfo) { 905 // Fill in the widget information 906 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 907 createItemInfo = new PendingAddWidgetInfo(info, null, null); 908 int[] cellSpans = CellLayout.rectToCell(getResources(), 909 info.minWidth, info.minHeight, null); 910 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 911 widget.applyFromAppWidgetProviderInfo(info, preview, -1, cellSpans, 912 mHolographicOutlineHelper); 913 widget.setTag(createItemInfo); 914 } else if (rawInfo instanceof ResolveInfo) { 915 // Fill in the shortcuts information 916 ResolveInfo info = (ResolveInfo) rawInfo; 917 createItemInfo = new PendingAddItemInfo(); 918 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 919 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 920 info.activityInfo.name); 921 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 922 widget.applyFromResolveInfo(mPackageManager, info, preview, 923 mHolographicOutlineHelper); 924 widget.setTag(createItemInfo); 925 } 926 widget.setOnClickListener(this); 927 widget.setOnLongClickListener(this); 928 widget.setOnTouchListener(this); 929 930 // Layout each widget 931 int ix = i % cellCountX; 932 int iy = i / cellCountX; 933 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 934 GridLayout.spec(iy, GridLayout.LEFT), 935 GridLayout.spec(ix, GridLayout.TOP)); 936 lp.width = cellWidth; 937 lp.height = cellHeight; 938 lp.setGravity(Gravity.TOP | Gravity.LEFT); 939 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 940 if (iy > 0) lp.topMargin = mWidgetHeightGap; 941 layout.addView(widget, lp); 942 } 943 944 invalidate(); 945 forceUpdateAdjacentPagesAlpha(); 946 947 if (mFadeInAdjacentScreens) { 948 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 949 } 950 } 951 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 952 // Invalidate early to short-circuit children invalidates 953 invalidate(); 954 955 int page = data.page; 956 ViewGroup layout = (ViewGroup) getChildAt(page); 957 if (layout instanceof PagedViewCellLayout) { 958 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 959 int count = cl.getPageChildCount(); 960 if (count != data.generatedImages.size()) return; 961 for (int i = 0; i < count; ++i) { 962 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 963 icon.setHolographicOutline(data.generatedImages.get(i)); 964 } 965 } else { 966 int count = layout.getChildCount(); 967 if (count != data.generatedImages.size()) return; 968 for (int i = 0; i < count; ++i) { 969 View v = layout.getChildAt(i); 970 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 971 } 972 } 973 } 974 975 @Override 976 public void syncPages() { 977 removeAllViews(); 978 979 // Remove all background asyc tasks if we are loading content anew 980 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 981 while (iter.hasNext()) { 982 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 983 task.cancel(false); 984 iter.remove(); 985 } 986 987 switch (mContentType) { 988 case Applications: 989 syncAppsPages(); 990 break; 991 case Widgets: 992 syncWidgetPages(); 993 break; 994 } 995 } 996 @Override 997 public void syncPageItems(int page) { 998 switch (mContentType) { 999 case Applications: 1000 syncAppsPageItems(page); 1001 break; 1002 case Widgets: 1003 syncWidgetPageItems(page); 1004 break; 1005 } 1006 } 1007 1008 /** 1009 * Used by the parent to get the content width to set the tab bar to 1010 * @return 1011 */ 1012 public int getPageContentWidth() { 1013 return mContentWidth; 1014 } 1015 1016 @Override 1017 protected void onPageBeginMoving() { 1018 /* TO BE ENABLED LATER 1019 setChildrenDrawnWithCacheEnabled(true); 1020 for (int i = 0; i < getChildCount(); ++i) { 1021 View v = getChildAt(i); 1022 if (v instanceof PagedViewCellLayout) { 1023 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(true); 1024 } 1025 } 1026 */ 1027 super.onPageBeginMoving(); 1028 } 1029 1030 @Override 1031 protected void onPageEndMoving() { 1032 /* TO BE ENABLED LATER 1033 for (int i = 0; i < getChildCount(); ++i) { 1034 View v = getChildAt(i); 1035 if (v instanceof PagedViewCellLayout) { 1036 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(false); 1037 } 1038 } 1039 setChildrenDrawnWithCacheEnabled(false); 1040 */ 1041 super.onPageEndMoving(); 1042 } 1043 1044 /* 1045 * AllAppsView implementation 1046 */ 1047 @Override 1048 public void setup(Launcher launcher, DragController dragController) { 1049 mLauncher = launcher; 1050 mDragController = dragController; 1051 } 1052 @Override 1053 public void zoom(float zoom, boolean animate) { 1054 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1055 } 1056 @Override 1057 public boolean isVisible() { 1058 return (getVisibility() == VISIBLE); 1059 } 1060 @Override 1061 public boolean isAnimating() { 1062 return false; 1063 } 1064 @Override 1065 public void setApps(ArrayList<ApplicationInfo> list) { 1066 mApps = list; 1067 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1068 1069 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1070 // request a layout to do this test and invalidate the page data when ready. 1071 if (testDataReady()) requestLayout(); 1072 } 1073 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1074 // We add it in place, in alphabetical order 1075 int count = list.size(); 1076 for (int i = 0; i < count; ++i) { 1077 ApplicationInfo info = list.get(i); 1078 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1079 if (index < 0) { 1080 mApps.add(-(index + 1), info); 1081 } 1082 } 1083 } 1084 @Override 1085 public void addApps(ArrayList<ApplicationInfo> list) { 1086 addAppsWithoutInvalidate(list); 1087 invalidatePageData(); 1088 } 1089 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1090 ComponentName removeComponent = item.intent.getComponent(); 1091 int length = list.size(); 1092 for (int i = 0; i < length; ++i) { 1093 ApplicationInfo info = list.get(i); 1094 if (info.intent.getComponent().equals(removeComponent)) { 1095 return i; 1096 } 1097 } 1098 return -1; 1099 } 1100 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1101 // loop through all the apps and remove apps that have the same component 1102 int length = list.size(); 1103 for (int i = 0; i < length; ++i) { 1104 ApplicationInfo info = list.get(i); 1105 int removeIndex = findAppByComponent(mApps, info); 1106 if (removeIndex > -1) { 1107 mApps.remove(removeIndex); 1108 } 1109 } 1110 } 1111 @Override 1112 public void removeApps(ArrayList<ApplicationInfo> list) { 1113 removeAppsWithoutInvalidate(list); 1114 invalidatePageData(); 1115 } 1116 @Override 1117 public void updateApps(ArrayList<ApplicationInfo> list) { 1118 // We remove and re-add the updated applications list because it's properties may have 1119 // changed (ie. the title), and this will ensure that the items will be in their proper 1120 // place in the list. 1121 removeAppsWithoutInvalidate(list); 1122 addAppsWithoutInvalidate(list); 1123 invalidatePageData(); 1124 } 1125 1126 @Override 1127 public void reset() { 1128 if (mContentType != ContentType.Applications) { 1129 // Reset to the first page of the Apps pane 1130 AppsCustomizeTabHost tabs = (AppsCustomizeTabHost) 1131 mLauncher.findViewById(R.id.apps_customize_pane); 1132 tabs.selectAppsTab(); 1133 } else if (getCurrentPage() != 0) { 1134 invalidatePageData(0); 1135 } 1136 } 1137 @Override 1138 public void dumpState() { 1139 // TODO: Dump information related to current list of Applications, Widgets, etc. 1140 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1141 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1142 } 1143 private void dumpAppWidgetProviderInfoList(String tag, String label, 1144 ArrayList<Object> list) { 1145 Log.d(tag, label + " size=" + list.size()); 1146 for (Object i: list) { 1147 if (i instanceof AppWidgetProviderInfo) { 1148 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1149 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1150 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1151 + " initialLayout=" + info.initialLayout 1152 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1153 } else if (i instanceof ResolveInfo) { 1154 ResolveInfo info = (ResolveInfo) i; 1155 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1156 + info.icon); 1157 } 1158 } 1159 } 1160 @Override 1161 public void surrender() { 1162 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1163 // should stop this now. 1164 } 1165 1166 /* 1167 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1168 * widget previews in the background with the AsyncTasks. 1169 */ 1170 protected int getAssociatedLowerPageBound(int page) { 1171 return Math.max(0, page - 2); 1172 } 1173 protected int getAssociatedUpperPageBound(int page) { 1174 final int count = getChildCount(); 1175 return Math.min(page + 2, count - 1); 1176 } 1177 1178 @Override 1179 protected String getCurrentPageDescription() { 1180 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1181 int stringId = R.string.default_scroll_format; 1182 switch (mContentType) { 1183 case Applications: 1184 stringId = R.string.apps_customize_apps_scroll_format; 1185 break; 1186 case Widgets: 1187 stringId = R.string.apps_customize_widgets_scroll_format; 1188 break; 1189 } 1190 return String.format(mContext.getString(stringId), page + 1, getChildCount()); 1191 } 1192} 1193