AppsCustomizePagedView.java revision d52f3d84fc1df6b4c1ae1101eb937ae4eeb32e75
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.Rect; 37import android.graphics.drawable.Drawable; 38import android.os.AsyncTask; 39import android.os.Process; 40import android.util.AttributeSet; 41import android.util.Log; 42import android.view.LayoutInflater; 43import android.view.View; 44import android.view.ViewGroup; 45import android.view.animation.AccelerateInterpolator; 46import android.widget.GridLayout; 47import android.widget.ImageView; 48import android.widget.TextView; 49import android.widget.Toast; 50 51import com.android.launcher.R; 52import com.android.launcher2.DropTarget.DragObject; 53 54import java.util.ArrayList; 55import java.util.Collections; 56import java.util.Iterator; 57import java.util.List; 58 59/** 60 * A simple callback interface which also provides the results of the task. 61 */ 62interface AsyncTaskCallback { 63 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 64} 65 66/** 67 * The data needed to perform either of the custom AsyncTasks. 68 */ 69class AsyncTaskPageData { 70 enum Type { 71 LoadWidgetPreviewData, 72 LoadHolographicIconsData 73 } 74 75 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 76 AsyncTaskCallback postR) { 77 page = p; 78 items = l; 79 sourceImages = si; 80 generatedImages = new ArrayList<Bitmap>(); 81 cellWidth = cellHeight = -1; 82 doInBackgroundCallback = bgR; 83 postExecuteCallback = postR; 84 } 85 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, int ccx, AsyncTaskCallback bgR, 86 AsyncTaskCallback postR) { 87 page = p; 88 items = l; 89 generatedImages = new ArrayList<Bitmap>(); 90 cellWidth = cw; 91 cellHeight = ch; 92 cellCountX = ccx; 93 doInBackgroundCallback = bgR; 94 postExecuteCallback = postR; 95 } 96 int page; 97 ArrayList<Object> items; 98 ArrayList<Bitmap> sourceImages; 99 ArrayList<Bitmap> generatedImages; 100 int cellWidth; 101 int cellHeight; 102 int cellCountX; 103 AsyncTaskCallback doInBackgroundCallback; 104 AsyncTaskCallback postExecuteCallback; 105} 106 107/** 108 * A generic template for an async task used in AppsCustomize. 109 */ 110class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 111 AppsCustomizeAsyncTask(int p, AppsCustomizePagedView.ContentType t, AsyncTaskPageData.Type ty) { 112 page = p; 113 pageContentType = t; 114 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 115 dataType = ty; 116 } 117 @Override 118 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 119 if (params.length != 1) return null; 120 // Load each of the widget previews in the background 121 params[0].doInBackgroundCallback.run(this, params[0]); 122 return params[0]; 123 } 124 @Override 125 protected void onPostExecute(AsyncTaskPageData result) { 126 // All the widget previews are loaded, so we can just callback to inflate the page 127 result.postExecuteCallback.run(this, result); 128 } 129 130 void setThreadPriority(int p) { 131 threadPriority = p; 132 } 133 void syncThreadPriority() { 134 Process.setThreadPriority(threadPriority); 135 } 136 137 // The page that this async task is associated with 138 AsyncTaskPageData.Type dataType; 139 int page; 140 AppsCustomizePagedView.ContentType pageContentType; 141 int threadPriority; 142} 143 144/** 145 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 146 */ 147public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 148 AllAppsView, View.OnClickListener, DragSource { 149 static final String LOG_TAG = "AppsCustomizePagedView"; 150 151 /** 152 * The different content types that this paged view can show. 153 */ 154 public enum ContentType { 155 Applications, 156 Widgets 157 } 158 159 // Refs 160 private Launcher mLauncher; 161 private DragController mDragController; 162 private final LayoutInflater mLayoutInflater; 163 private final PackageManager mPackageManager; 164 165 // Content 166 private ContentType mContentType; 167 private ArrayList<ApplicationInfo> mApps; 168 private ArrayList<Object> mWidgets; 169 private ArrayList<Object> mShortcuts; 170 171 // Caching 172 private Canvas mCanvas; 173 private Drawable mDefaultWidgetBackground; 174 private IconCache mIconCache; 175 176 // Dimens 177 private int mContentWidth; 178 private int mAppIconSize; 179 private int mMaxWidgetSpan, mMinWidgetSpan; 180 private int mWidgetCountX, mWidgetCountY; 181 private int mWidgetWidthGap, mWidgetHeightGap; 182 private int mShortcutCountX, mShortcutCountY; 183 private int mShortcutWidthGap, mShortcutHeightGap; 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 mShortcuts = new ArrayList<Object>(); 200 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 201 mHolographicOutlineHelper = new HolographicOutlineHelper(); 202 mCanvas = new Canvas(); 203 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 204 205 // Save the default widget preview background 206 Resources resources = context.getResources(); 207 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 208 mAppIconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 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 } 235 236 @Override 237 protected void init() { 238 super.init(); 239 mCenterPagesVertically = false; 240 241 Context context = getContext(); 242 Resources r = context.getResources(); 243 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 244 } 245 246 @Override 247 protected void onWallpaperTap(android.view.MotionEvent ev) { 248 mLauncher.showWorkspace(true); 249 } 250 251 /** 252 * This differs from isDataReady as this is the test done if isDataReady is not set. 253 */ 254 private boolean testDataReady() { 255 // We only do this test once, and we default to the Applications page, so we only really 256 // have to wait for there to be apps. 257 return !mApps.isEmpty(); 258 } 259 260 protected void onDataReady(int width, int height) { 261 // Note that we transpose the counts in portrait so that we get a similar layout 262 boolean isLandscape = getResources().getConfiguration().orientation == 263 Configuration.ORIENTATION_LANDSCAPE; 264 int maxCellCountX = Integer.MAX_VALUE; 265 int maxCellCountY = Integer.MAX_VALUE; 266 if (LauncherApplication.isScreenLarge()) { 267 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 268 LauncherModel.getCellCountY()); 269 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 270 LauncherModel.getCellCountX()); 271 } 272 273 // Now that the data is ready, we can calculate the content width, the number of cells to 274 // use for each page 275 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 276 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 277 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 278 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 279 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 280 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 281 mWidgetCountX = Math.max(1, (int) Math.round(mCellCountX / 2f)); 282 mWidgetCountY = Math.max(1, (int) Math.round(mCellCountY / 3f)); 283 mShortcutCountX = Math.max(1, (int) Math.round(mCellCountX / 2f)); 284 mShortcutCountY = Math.max(1, (int) Math.round(mCellCountY / 2f)); 285 286 // Force a measure to update recalculate the gaps 287 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 288 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 289 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 290 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 291 292 invalidatePageData(); 293 } 294 295 @Override 296 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 297 int width = MeasureSpec.getSize(widthMeasureSpec); 298 int height = MeasureSpec.getSize(heightMeasureSpec); 299 if (!isDataReady()) { 300 if (testDataReady()) { 301 setDataIsReady(); 302 setMeasuredDimension(width, height); 303 onDataReady(width, height); 304 } 305 } 306 307 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 308 } 309 310 /** Removes and returns the ResolveInfo with the specified ComponentName */ 311 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 312 ComponentName cn) { 313 Iterator<ResolveInfo> iter = list.iterator(); 314 while (iter.hasNext()) { 315 ResolveInfo rinfo = iter.next(); 316 ActivityInfo info = rinfo.activityInfo; 317 ComponentName c = new ComponentName(info.packageName, info.name); 318 if (c.equals(cn)) { 319 iter.remove(); 320 return rinfo; 321 } 322 } 323 return null; 324 } 325 326 public void onPackagesUpdated() { 327 // Get the list of widgets and shortcuts 328 boolean wasEmpty = mWidgets.isEmpty() && mShortcuts.isEmpty(); 329 mWidgets.clear(); 330 mShortcuts.clear(); 331 List<AppWidgetProviderInfo> widgets = 332 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 333 Collections.sort(widgets, 334 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 335 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 336 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 337 Collections.sort(shortcuts, 338 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 339 mWidgets.addAll(widgets); 340 mShortcuts.addAll(shortcuts); 341 342 if (wasEmpty) { 343 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 344 // a layout to do this test and invalidate the page data when ready. 345 if (testDataReady()) requestLayout(); 346 } else { 347 invalidatePageData(); 348 } 349 } 350 351 @Override 352 public void onClick(View v) { 353 if (v instanceof PagedViewIcon) { 354 // Animate some feedback to the click 355 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 356 animateClickFeedback(v, new Runnable() { 357 @Override 358 public void run() { 359 mLauncher.startActivitySafely(appInfo.intent, appInfo); 360 } 361 }); 362 } else if (v instanceof PagedViewWidget) { 363 // Let the user know that they have to long press to add a widget 364 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 365 Toast.LENGTH_SHORT).show(); 366 367 // Create a little animation to show that the widget can move 368 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 369 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 370 AnimatorSet bounce = new AnimatorSet(); 371 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 372 tyuAnim.setDuration(125); 373 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 374 tydAnim.setDuration(100); 375 bounce.play(tyuAnim).before(tydAnim); 376 bounce.setInterpolator(new AccelerateInterpolator()); 377 bounce.start(); 378 } 379 } 380 381 /* 382 * PagedViewWithDraggableItems implementation 383 */ 384 @Override 385 protected void determineDraggingStart(android.view.MotionEvent ev) { 386 // Disable dragging by pulling an app down for now. 387 } 388 389 private void beginDraggingApplication(View v) { 390 mLauncher.getWorkspace().onDragStartedWithItem(v); 391 mLauncher.getWorkspace().beginDragShared(v, this); 392 } 393 394 private void beginDraggingWidget(View v) { 395 // Get the widget preview as the drag representation 396 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 397 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 398 399 // Compose the drag image 400 Bitmap b; 401 Drawable preview = image.getDrawable(); 402 int w = preview.getIntrinsicWidth(); 403 int h = preview.getIntrinsicHeight(); 404 if (createItemInfo instanceof PendingAddWidgetInfo) { 405 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 406 int[] spanXY = CellLayout.rectToCell(getResources(), 407 createWidgetInfo.minWidth, createWidgetInfo.minHeight, null); 408 createItemInfo.spanX = spanXY[0]; 409 createItemInfo.spanY = spanXY[1]; 410 411 b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 412 renderDrawableToBitmap(preview, b, 0, 0, w, h, 1, 1); 413 } else { 414 // Workaround for the fact that we don't keep the original ResolveInfo associated with 415 // the shortcut around. To get the icon, we just render the preview image (which has 416 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 417 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 418 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 419 mCanvas.setBitmap(b); 420 mCanvas.save(); 421 preview.draw(mCanvas); 422 mCanvas.restore(); 423 createItemInfo.spanX = createItemInfo.spanY = 1; 424 } 425 426 // Start the drag 427 mLauncher.lockScreenOrientation(); 428 mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, 429 createItemInfo.spanY, b); 430 mDragController.startDrag(image, b, this, createItemInfo, 431 DragController.DRAG_ACTION_COPY, null); 432 b.recycle(); 433 } 434 @Override 435 protected boolean beginDragging(View v) { 436 if (!super.beginDragging(v)) return false; 437 438 // Go into spring loaded mode (must happen before we startDrag()) 439 int currentPageIndex = mLauncher.getWorkspace().getCurrentPage(); 440 CellLayout currentPage = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPageIndex); 441 mLauncher.enterSpringLoadedDragMode(currentPage); 442 443 if (v instanceof PagedViewIcon) { 444 beginDraggingApplication(v); 445 } else if (v instanceof PagedViewWidget) { 446 beginDraggingWidget(v); 447 } 448 return true; 449 } 450 private void endDragging(View target, boolean success) { 451 mLauncher.getWorkspace().onDragStopped(success); 452 if (!success || target != mLauncher.getWorkspace()) { 453 // Exit spring loaded mode if we have not successfully dropped or have not handled the 454 // drop in Workspace 455 mLauncher.exitSpringLoadedDragMode(); 456 } 457 mLauncher.unlockScreenOrientation(); 458 459 } 460 461 /* 462 * DragSource implementation 463 */ 464 @Override 465 public void onDragViewVisible() {} 466 @Override 467 public void onDropCompleted(View target, DragObject d, boolean success) { 468 endDragging(target, success); 469 470 // Display an error message if the drag failed due to there not being enough space on the 471 // target layout we were dropping on. 472 if (!success) { 473 boolean showOutOfSpaceMessage = false; 474 if (target instanceof Workspace) { 475 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 476 Workspace workspace = (Workspace) target; 477 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 478 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 479 if (layout != null) { 480 layout.calculateSpans(itemInfo); 481 showOutOfSpaceMessage = 482 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 483 } 484 } 485 // TODO-APPS_CUSTOMIZE: We need to handle this for folders as well later. 486 if (showOutOfSpaceMessage) { 487 mLauncher.showOutOfSpaceMessage(); 488 } 489 } 490 } 491 492 public void setContentType(ContentType type) { 493 mContentType = type; 494 setCurrentPage(0); 495 invalidatePageData(); 496 } 497 498 public boolean isContentType(ContentType type) { 499 return (mContentType == type); 500 } 501 502 /* 503 * Apps PagedView implementation 504 */ 505 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 506 int childCount = layout.getChildCount(); 507 for (int i = 0; i < childCount; ++i) { 508 layout.getChildAt(i).setVisibility(visibility); 509 } 510 } 511 private void setupPage(PagedViewCellLayout layout) { 512 layout.setCellCount(mCellCountX, mCellCountY); 513 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 514 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 515 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 516 517 // Note: We force a measure here to get around the fact that when we do layout calculations 518 // immediately after syncing, we don't have a proper width. That said, we already know the 519 // expected page width, so we can actually optimize by hiding all the TextView-based 520 // children that are expensive to measure, and let that happen naturally later. 521 setVisibilityOnChildren(layout, View.GONE); 522 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 523 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 524 layout.setMinimumWidth(getPageContentWidth()); 525 layout.measure(widthSpec, heightSpec); 526 setVisibilityOnChildren(layout, View.VISIBLE); 527 } 528 public void syncAppsPages() { 529 // Ensure that we have the right number of pages 530 Context context = getContext(); 531 int numPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 532 for (int i = 0; i < numPages; ++i) { 533 PagedViewCellLayout layout = new PagedViewCellLayout(context); 534 setupPage(layout); 535 addView(layout); 536 } 537 } 538 public void syncAppsPageItems(int page) { 539 // ensure that we have the right number of items on the pages 540 int numPages = getPageCount(); 541 int numCells = mCellCountX * mCellCountY; 542 int startIndex = page * numCells; 543 int endIndex = Math.min(startIndex + numCells, mApps.size()); 544 PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page); 545 546 layout.removeAllViewsOnPage(); 547 ArrayList<Object> items = new ArrayList<Object>(); 548 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 549 for (int i = startIndex; i < endIndex; ++i) { 550 ApplicationInfo info = mApps.get(i); 551 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 552 R.layout.apps_customize_application, layout, false); 553 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 554 icon.setOnClickListener(this); 555 icon.setOnLongClickListener(this); 556 icon.setOnTouchListener(this); 557 558 int index = i - startIndex; 559 int x = index % mCellCountX; 560 int y = index / mCellCountX; 561 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 562 563 items.add(info); 564 images.add(info.iconBitmap); 565 } 566 567 // Create the hardware layers 568 layout.allowHardwareLayerCreation(); 569 layout.createHardwareLayers(); 570 571 prepareGenerateHoloOutlinesTask(page, items, images); 572 } 573 574 /** 575 * Return the appropriate thread priority for loading for a given page (we give the current 576 * page much higher priority) 577 */ 578 private int getThreadPriorityForPage(int page) { 579 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 580 int pageDiff = Math.abs(page - mCurrentPage); 581 if (pageDiff <= 0) { 582 // return Process.THREAD_PRIORITY_DEFAULT; 583 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 584 } else if (pageDiff <= 1) { 585 // return Process.THREAD_PRIORITY_BACKGROUND; 586 return Process.THREAD_PRIORITY_DEFAULT; 587 } else { 588 // return Process.THREAD_PRIORITY_LOWEST; 589 return Process.THREAD_PRIORITY_DEFAULT; 590 } 591 } 592 /** 593 * Creates and executes a new AsyncTask to load a page of widget previews. 594 */ 595 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 596 int cellWidth, int cellHeight, int cellCountX) { 597 // Prune all tasks that are no longer needed 598 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 599 while (iter.hasNext()) { 600 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 601 int taskPage = task.page; 602 if ((taskPage == page) || 603 taskPage < getAssociatedLowerPageBound(mCurrentPage) || 604 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 605 task.cancel(false); 606 iter.remove(); 607 } else { 608 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 609 } 610 } 611 612 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 613 cellCountX, new AsyncTaskCallback() { 614 @Override 615 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 616 // Ensure that this task starts running at the correct priority 617 task.syncThreadPriority(); 618 619 // Load each of the widget/shortcut previews 620 ArrayList<Object> items = data.items; 621 ArrayList<Bitmap> images = data.generatedImages; 622 int count = items.size(); 623 int cellWidth = data.cellWidth; 624 int cellHeight = data.cellHeight; 625 for (int i = 0; i < count && !task.isCancelled(); ++i) { 626 // Before work on each item, ensure that this task is running at the correct 627 // priority 628 task.syncThreadPriority(); 629 630 Object rawInfo = items.get(i); 631 if (rawInfo instanceof AppWidgetProviderInfo) { 632 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 633 int[] cellSpans = CellLayout.rectToCell(getResources(), 634 info.minWidth, info.minHeight, null); 635 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 636 cellWidth, cellHeight)); 637 } else if (rawInfo instanceof ResolveInfo) { 638 // Fill in the shortcuts information 639 ResolveInfo info = (ResolveInfo) rawInfo; 640 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 641 } 642 } 643 } 644 }, 645 new AsyncTaskCallback() { 646 @Override 647 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 648 mRunningTasks.remove(task); 649 if (task.isCancelled()) return; 650 if (task.page > getPageCount()) return; 651 if (task.pageContentType != mContentType) return; 652 onSyncWidgetPageItems(data); 653 } 654 }); 655 656 // Ensure that the task is appropriately prioritized and runs in parallel 657 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, mContentType, 658 AsyncTaskPageData.Type.LoadWidgetPreviewData); 659 t.setThreadPriority(getThreadPriorityForPage(page)); 660 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 661 mRunningTasks.add(t); 662 } 663 /** 664 * Creates and executes a new AsyncTask to load the outlines for a page of content. 665 */ 666 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 667 ArrayList<Bitmap> images) { 668 // Prune old tasks for this page 669 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 670 while (iter.hasNext()) { 671 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 672 int taskPage = task.page; 673 if ((taskPage == page) && 674 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 675 task.cancel(false); 676 iter.remove(); 677 } 678 } 679 680 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 681 new AsyncTaskCallback() { 682 @Override 683 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 684 // Ensure that this task starts running at the correct priority 685 task.syncThreadPriority(); 686 687 ArrayList<Bitmap> images = data.generatedImages; 688 ArrayList<Bitmap> srcImages = data.sourceImages; 689 int count = srcImages.size(); 690 Canvas c = new Canvas(); 691 for (int i = 0; i < count && !task.isCancelled(); ++i) { 692 // Before work on each item, ensure that this task is running at the correct 693 // priority 694 task.syncThreadPriority(); 695 696 Bitmap b = srcImages.get(i); 697 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 698 Bitmap.Config.ARGB_8888); 699 700 c.setBitmap(outline); 701 c.save(); 702 c.drawBitmap(b, 0, 0, null); 703 c.restore(); 704 705 images.add(outline); 706 } 707 } 708 }, 709 new AsyncTaskCallback() { 710 @Override 711 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 712 mRunningTasks.remove(task); 713 if (task.isCancelled()) return; 714 if (task.page > getPageCount()) return; 715 if (task.pageContentType != mContentType) return; 716 onHolographicPageItemsLoaded(data); 717 } 718 }); 719 720 // Ensure that the outline task always runs in the background, serially 721 AppsCustomizeAsyncTask t = 722 new AppsCustomizeAsyncTask(page, mContentType, 723 AsyncTaskPageData.Type.LoadHolographicIconsData); 724 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 725 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 726 mRunningTasks.add(t); 727 } 728 729 /* 730 * Widgets PagedView implementation 731 */ 732 private void setupPage(PagedViewGridLayout layout) { 733 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 734 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 735 736 // Note: We force a measure here to get around the fact that when we do layout calculations 737 // immediately after syncing, we don't have a proper width. 738 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 739 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 740 layout.setMinimumWidth(getPageContentWidth()); 741 layout.measure(widthSpec, heightSpec); 742 } 743 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 744 float scaleX, float scaleY) { 745 if (bitmap != null) { 746 Canvas c = new Canvas(bitmap); 747 c.scale(scaleX, scaleY); 748 Rect oldBounds = d.copyBounds(); 749 d.setBounds(x, y, x + w, y + h); 750 d.draw(c); 751 d.setBounds(oldBounds); // Restore the bounds 752 } 753 } 754 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 755 // Render the icon 756 Bitmap preview = Bitmap.createBitmap(cellWidth, mAppIconSize, Config.ARGB_8888); 757 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 758 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize, 1f, 1f); 759 return preview; 760 } 761 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 762 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 763 764 // Calculate the size of the drawable 765 cellHSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellHSpan)); 766 cellVSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellVSpan)); 767 int expectedWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 768 int expectedHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 769 770 // Scale down the bitmap to fit the space 771 float widgetPreviewScale = (float) cellWidth / expectedWidth; 772 expectedWidth = (int) (widgetPreviewScale * expectedWidth); 773 expectedHeight = (int) (widgetPreviewScale * expectedHeight); 774 775 // Load the preview image if possible 776 String packageName = info.provider.getPackageName(); 777 Drawable drawable = null; 778 Bitmap preview = null; 779 if (info.previewImage != 0) { 780 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 781 if (drawable == null) { 782 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 783 + " for provider: " + info.provider); 784 } else { 785 // Scale down the preview to the dimensions we want 786 int imageWidth = drawable.getIntrinsicWidth(); 787 int imageHeight = drawable.getIntrinsicHeight(); 788 float aspect = (float) imageWidth / imageHeight; 789 int newWidth = imageWidth; 790 int newHeight = imageHeight; 791 if (aspect > 1f) { 792 newWidth = expectedWidth; 793 newHeight = (int) (imageHeight * ((float) expectedWidth / imageWidth)); 794 } else { 795 newHeight = expectedHeight; 796 newWidth = (int) (imageWidth * ((float) expectedHeight / imageHeight)); 797 } 798 799 preview = Bitmap.createBitmap(newWidth, newHeight, Config.ARGB_8888); 800 renderDrawableToBitmap(drawable, preview, 0, 0, newWidth, newHeight, 1f, 1f); 801 } 802 } 803 804 // Generate a preview image if we couldn't load one 805 if (drawable == null) { 806 Resources resources = mLauncher.getResources(); 807 int bitmapWidth; 808 int bitmapHeight; 809 810 // Specify the dimensions of the bitmap (since we are using a default preview bg with 811 // the full icon, we only imply the aspect ratio of the widget) 812 if (cellHSpan == cellVSpan) { 813 bitmapWidth = bitmapHeight = cellWidth; 814 expectedWidth = expectedHeight = mWidgetPreviewIconPaddedDimension; 815 } else if (cellHSpan >= cellVSpan) { 816 bitmapWidth = expectedWidth = cellWidth; 817 bitmapHeight = expectedHeight = mWidgetPreviewIconPaddedDimension; 818 } else { 819 // Note that in vertical widgets, we might not have enough space due to the text 820 // label, so be conservative and use the width as a height bound 821 bitmapWidth = expectedWidth = mWidgetPreviewIconPaddedDimension; 822 bitmapHeight = expectedHeight = cellWidth; 823 } 824 825 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 826 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, expectedWidth, 827 expectedHeight, 1f,1f); 828 829 // Draw the icon in the top left corner 830 try { 831 Drawable icon = null; 832 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 833 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 834 835 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 836 renderDrawableToBitmap(icon, preview, offset, offset, 837 mAppIconSize, mAppIconSize, 1f, 1f); 838 } catch (Resources.NotFoundException e) {} 839 } 840 return preview; 841 } 842 public void syncWidgetPages() { 843 // Ensure that we have the right number of pages 844 Context context = getContext(); 845 int[] countX = { mWidgetCountX, mShortcutCountX }; 846 int[] countY = { mWidgetCountY, mShortcutCountY }; 847 Object[] collection = { mWidgets, mShortcuts }; 848 for (int i = 0; i < 2; ++i) { 849 ArrayList<Object> list = (ArrayList<Object>) collection[i]; 850 int numItemsPerPage = countX[i] * countY[i]; 851 int numItemPages = (int) Math.ceil(list.size() / (float) numItemsPerPage); 852 for (int j = 0; j < numItemPages; ++j) { 853 PagedViewGridLayout layout = new PagedViewGridLayout(context, countX[i], 854 countY[i]); 855 setupPage(layout); 856 addView(layout); 857 } 858 } 859 } 860 public void syncWidgetPageItems(int page) { 861 int[] countX = { mWidgetCountX, mShortcutCountX }; 862 int[] countY = { mWidgetCountY, mShortcutCountY }; 863 int[] widthGap = { mWidgetWidthGap, mWidgetWidthGap }; 864 int[] heightGap = { mWidgetHeightGap, mWidgetHeightGap }; 865 int[] numItemsPerPage = { mWidgetCountX * mWidgetCountY, 866 mShortcutCountX * mShortcutCountY }; 867 Object[] collection = { mWidgets, mShortcuts }; 868 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 869 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 870 int numWidgetPages = (int) Math.ceil(mWidgets.size() / (float) numItemsPerPage[0]); 871 int[] offsets = { page * numItemsPerPage[0], (page - numWidgetPages) * numItemsPerPage[1] }; 872 int index = (page < numWidgetPages ? 0 : 1); 873 874 // Calculate the dimensions of each cell we are giving to each widget 875 ArrayList<Object> list = (ArrayList<Object>) collection[index]; 876 ArrayList<Object> items = new ArrayList<Object>(); 877 int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 878 - ((countX[index] - 1) * widthGap[index])) / countX[index]); 879 int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 880 - ((countY[index] - 1) * heightGap[index])) / countY[index]); 881 882 int offset = offsets[index]; 883 for (int i = offset; i < Math.min(offset + numItemsPerPage[index], list.size()); ++i) { 884 items.add(list.get(i)); 885 } 886 887 prepareLoadWidgetPreviewsTask(page, items, cellWidth, cellHeight, countX[index]); 888 } 889 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 890 int page = data.page; 891 PagedViewGridLayout layout = (PagedViewGridLayout) getChildAt(page); 892 // Only set the column count once we have items 893 layout.setColumnCount(layout.getCellCountX()); 894 895 ArrayList<Object> items = data.items; 896 int count = items.size(); 897 int cellWidth = data.cellWidth; 898 int cellHeight = data.cellHeight; 899 int cellCountX = data.cellCountX; 900 for (int i = 0; i < count; ++i) { 901 Object rawInfo = items.get(i); 902 PendingAddItemInfo createItemInfo = null; 903 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 904 R.layout.apps_customize_widget, layout, false); 905 if (rawInfo instanceof AppWidgetProviderInfo) { 906 // Fill in the widget information 907 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 908 createItemInfo = new PendingAddWidgetInfo(info, null, null); 909 int[] cellSpans = CellLayout.rectToCell(getResources(), 910 info.minWidth, info.minHeight, null); 911 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 912 widget.applyFromAppWidgetProviderInfo(info, preview, -1, cellSpans, 913 mHolographicOutlineHelper); 914 widget.setTag(createItemInfo); 915 } else if (rawInfo instanceof ResolveInfo) { 916 // Fill in the shortcuts information 917 ResolveInfo info = (ResolveInfo) rawInfo; 918 createItemInfo = new PendingAddItemInfo(); 919 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 920 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 921 info.activityInfo.name); 922 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 923 widget.applyFromResolveInfo(mPackageManager, info, preview, 924 mHolographicOutlineHelper); 925 widget.setTag(createItemInfo); 926 } 927 widget.setOnClickListener(this); 928 widget.setOnLongClickListener(this); 929 widget.setOnTouchListener(this); 930 931 // Layout each widget 932 int ix = i % cellCountX; 933 int iy = i / cellCountX; 934 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 935 GridLayout.spec(iy, GridLayout.LEFT, GridLayout.CAN_STRETCH), 936 GridLayout.spec(ix, GridLayout.TOP, GridLayout.CAN_STRETCH)); 937 lp.width = cellWidth; 938 lp.height = cellHeight; 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 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 947 } 948 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 949 // Invalidate early to short-circuit children invalidates 950 invalidate(); 951 952 int page = data.page; 953 ViewGroup layout = (ViewGroup) getChildAt(page); 954 if (layout instanceof PagedViewCellLayout) { 955 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 956 int count = cl.getPageChildCount(); 957 if (count != data.generatedImages.size()) return; 958 for (int i = 0; i < count; ++i) { 959 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 960 icon.setHolographicOutline(data.generatedImages.get(i)); 961 } 962 } else { 963 int count = layout.getChildCount(); 964 if (count != data.generatedImages.size()) return; 965 for (int i = 0; i < count; ++i) { 966 View v = layout.getChildAt(i); 967 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 968 } 969 } 970 } 971 972 @Override 973 public void syncPages() { 974 removeAllViews(); 975 976 // Remove all background asyc tasks if we are loading content anew 977 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 978 while (iter.hasNext()) { 979 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 980 task.cancel(false); 981 iter.remove(); 982 } 983 984 switch (mContentType) { 985 case Applications: 986 syncAppsPages(); 987 break; 988 case Widgets: 989 syncWidgetPages(); 990 break; 991 } 992 } 993 @Override 994 public void syncPageItems(int page) { 995 switch (mContentType) { 996 case Applications: 997 syncAppsPageItems(page); 998 break; 999 case Widgets: 1000 syncWidgetPageItems(page); 1001 break; 1002 } 1003 } 1004 1005 /** 1006 * Used by the parent to get the content width to set the tab bar to 1007 * @return 1008 */ 1009 public int getPageContentWidth() { 1010 return mContentWidth; 1011 } 1012 1013 @Override 1014 protected void onPageBeginMoving() { 1015 /* TO BE ENABLED LATER 1016 setChildrenDrawnWithCacheEnabled(true); 1017 for (int i = 0; i < getChildCount(); ++i) { 1018 View v = getChildAt(i); 1019 if (v instanceof PagedViewCellLayout) { 1020 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(true); 1021 } 1022 } 1023 */ 1024 super.onPageBeginMoving(); 1025 } 1026 1027 @Override 1028 protected void onPageEndMoving() { 1029 /* TO BE ENABLED LATER 1030 for (int i = 0; i < getChildCount(); ++i) { 1031 View v = getChildAt(i); 1032 if (v instanceof PagedViewCellLayout) { 1033 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(false); 1034 } 1035 } 1036 setChildrenDrawnWithCacheEnabled(false); 1037 */ 1038 super.onPageEndMoving(); 1039 } 1040 1041 /* 1042 * AllAppsView implementation 1043 */ 1044 @Override 1045 public void setup(Launcher launcher, DragController dragController) { 1046 mLauncher = launcher; 1047 mDragController = dragController; 1048 } 1049 @Override 1050 public void zoom(float zoom, boolean animate) { 1051 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1052 } 1053 @Override 1054 public boolean isVisible() { 1055 return (getVisibility() == VISIBLE); 1056 } 1057 @Override 1058 public boolean isAnimating() { 1059 return false; 1060 } 1061 @Override 1062 public void setApps(ArrayList<ApplicationInfo> list) { 1063 mApps = list; 1064 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1065 1066 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1067 // request a layout to do this test and invalidate the page data when ready. 1068 if (testDataReady()) requestLayout(); 1069 } 1070 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1071 // We add it in place, in alphabetical order 1072 int count = list.size(); 1073 for (int i = 0; i < count; ++i) { 1074 ApplicationInfo info = list.get(i); 1075 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1076 if (index < 0) { 1077 mApps.add(-(index + 1), info); 1078 } 1079 } 1080 } 1081 @Override 1082 public void addApps(ArrayList<ApplicationInfo> list) { 1083 addAppsWithoutInvalidate(list); 1084 invalidatePageData(); 1085 } 1086 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1087 ComponentName removeComponent = item.intent.getComponent(); 1088 int length = list.size(); 1089 for (int i = 0; i < length; ++i) { 1090 ApplicationInfo info = list.get(i); 1091 if (info.intent.getComponent().equals(removeComponent)) { 1092 return i; 1093 } 1094 } 1095 return -1; 1096 } 1097 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1098 // loop through all the apps and remove apps that have the same component 1099 int length = list.size(); 1100 for (int i = 0; i < length; ++i) { 1101 ApplicationInfo info = list.get(i); 1102 int removeIndex = findAppByComponent(mApps, info); 1103 if (removeIndex > -1) { 1104 mApps.remove(removeIndex); 1105 } 1106 } 1107 } 1108 @Override 1109 public void removeApps(ArrayList<ApplicationInfo> list) { 1110 removeAppsWithoutInvalidate(list); 1111 invalidatePageData(); 1112 } 1113 @Override 1114 public void updateApps(ArrayList<ApplicationInfo> list) { 1115 // We remove and re-add the updated applications list because it's properties may have 1116 // changed (ie. the title), and this will ensure that the items will be in their proper 1117 // place in the list. 1118 removeAppsWithoutInvalidate(list); 1119 addAppsWithoutInvalidate(list); 1120 invalidatePageData(); 1121 } 1122 1123 @Override 1124 public void reset() { 1125 if (mContentType != ContentType.Applications) { 1126 // Reset to the first page of the Apps pane 1127 AppsCustomizeTabHost tabs = (AppsCustomizeTabHost) 1128 mLauncher.findViewById(R.id.apps_customize_pane); 1129 tabs.setCurrentTabByTag(tabs.getTabTagForContentType(ContentType.Applications)); 1130 } else if (getCurrentPage() != 0) { 1131 setCurrentPage(0); 1132 invalidatePageData(); 1133 } 1134 } 1135 @Override 1136 public void dumpState() { 1137 // TODO: Dump information related to current list of Applications, Widgets, etc. 1138 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1139 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1140 dumpAppWidgetProviderInfoList(LOG_TAG, "mShortcuts", mShortcuts); 1141 } 1142 private void dumpAppWidgetProviderInfoList(String tag, String label, 1143 ArrayList<Object> list) { 1144 Log.d(tag, label + " size=" + list.size()); 1145 for (Object i: list) { 1146 if (i instanceof AppWidgetProviderInfo) { 1147 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1148 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1149 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1150 + " initialLayout=" + info.initialLayout 1151 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1152 } else if (i instanceof ResolveInfo) { 1153 ResolveInfo info = (ResolveInfo) i; 1154 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1155 + info.icon); 1156 } 1157 } 1158 } 1159 @Override 1160 public void surrender() { 1161 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1162 // should stop this now. 1163 } 1164 1165 /* 1166 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1167 * widget previews in the background with the AsyncTasks. 1168 */ 1169 protected int getAssociatedLowerPageBound(int page) { 1170 return Math.max(0, page - 2); 1171 } 1172 protected int getAssociatedUpperPageBound(int page) { 1173 final int count = getChildCount(); 1174 return Math.min(page + 2, count - 1); 1175 } 1176 1177 @Override 1178 protected String getCurrentPageDescription() { 1179 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1180 int stringId = R.string.default_scroll_format; 1181 switch (mContentType) { 1182 case Applications: 1183 stringId = R.string.apps_customize_apps_scroll_format; 1184 break; 1185 case Widgets: 1186 stringId = R.string.apps_customize_widgets_scroll_format; 1187 break; 1188 } 1189 return String.format(mContext.getString(stringId), page + 1, getChildCount()); 1190 } 1191} 1192