AppsCustomizePagedView.java revision 6a0f57dfafced837a2a282d8feec28d5418be3b9
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); 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 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 287 288 invalidatePageData(); 289 } 290 291 @Override 292 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 293 int width = MeasureSpec.getSize(widthMeasureSpec); 294 int height = MeasureSpec.getSize(heightMeasureSpec); 295 if (!isDataReady()) { 296 if (testDataReady()) { 297 setDataIsReady(); 298 setMeasuredDimension(width, height); 299 onDataReady(width, height); 300 } 301 } 302 303 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 304 } 305 306 /** Removes and returns the ResolveInfo with the specified ComponentName */ 307 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 308 ComponentName cn) { 309 Iterator<ResolveInfo> iter = list.iterator(); 310 while (iter.hasNext()) { 311 ResolveInfo rinfo = iter.next(); 312 ActivityInfo info = rinfo.activityInfo; 313 ComponentName c = new ComponentName(info.packageName, info.name); 314 if (c.equals(cn)) { 315 iter.remove(); 316 return rinfo; 317 } 318 } 319 return null; 320 } 321 322 public void onPackagesUpdated() { 323 // Get the list of widgets and shortcuts 324 boolean wasEmpty = mWidgets.isEmpty() && mShortcuts.isEmpty(); 325 mWidgets.clear(); 326 mShortcuts.clear(); 327 List<AppWidgetProviderInfo> widgets = 328 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 329 Collections.sort(widgets, 330 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 331 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 332 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 333 Collections.sort(shortcuts, 334 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 335 mWidgets.addAll(widgets); 336 mShortcuts.addAll(shortcuts); 337 338 if (wasEmpty) { 339 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 340 // a layout to do this test and invalidate the page data when ready. 341 if (testDataReady()) requestLayout(); 342 } else { 343 invalidatePageData(); 344 } 345 } 346 347 @Override 348 public void onClick(View v) { 349 if (v instanceof PagedViewIcon) { 350 // Animate some feedback to the click 351 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 352 animateClickFeedback(v, new Runnable() { 353 @Override 354 public void run() { 355 mLauncher.startActivitySafely(appInfo.intent, appInfo); 356 } 357 }); 358 } else if (v instanceof PagedViewWidget) { 359 // Let the user know that they have to long press to add a widget 360 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 361 Toast.LENGTH_SHORT).show(); 362 363 // Create a little animation to show that the widget can move 364 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 365 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 366 AnimatorSet bounce = new AnimatorSet(); 367 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 368 tyuAnim.setDuration(125); 369 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 370 tydAnim.setDuration(100); 371 bounce.play(tyuAnim).before(tydAnim); 372 bounce.setInterpolator(new AccelerateInterpolator()); 373 bounce.start(); 374 } 375 } 376 377 /* 378 * PagedViewWithDraggableItems implementation 379 */ 380 @Override 381 protected void determineDraggingStart(android.view.MotionEvent ev) { 382 // Disable dragging by pulling an app down for now. 383 } 384 private void beginDraggingApplication(View v) { 385 // Make a copy of the ApplicationInfo 386 ApplicationInfo appInfo = new ApplicationInfo((ApplicationInfo) v.getTag()); 387 388 // Compose the drag image (top compound drawable, index is 1) 389 final TextView tv = (TextView) v; 390 final Drawable icon = tv.getCompoundDrawables()[1]; 391 Bitmap b = Bitmap.createBitmap(v.getWidth(), v.getHeight(), 392 Bitmap.Config.ARGB_8888); 393 mCanvas.setBitmap(b); 394 mCanvas.save(); 395 mCanvas.translate((v.getWidth() - icon.getIntrinsicWidth()) / 2, v.getPaddingTop()); 396 icon.draw(mCanvas); 397 mCanvas.restore(); 398 399 // Compose the visible rect of the drag image 400 Rect dragRect = null; 401 if (v instanceof TextView) { 402 int top = v.getPaddingTop(); 403 int left = (b.getWidth() - mAppIconSize) / 2; 404 int right = left + mAppIconSize; 405 int bottom = top + mAppIconSize; 406 dragRect = new Rect(left, top, right, bottom); 407 } 408 409 // Start the drag 410 mLauncher.lockScreenOrientation(); 411 mLauncher.getWorkspace().onDragStartedWithItemSpans(1, 1, b); 412 mDragController.startDrag(v, b, this, appInfo, DragController.DRAG_ACTION_COPY, dragRect); 413 b.recycle(); 414 } 415 private void beginDraggingWidget(View v) { 416 // Get the widget preview as the drag representation 417 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 418 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 419 420 // Compose the drag image 421 Bitmap b; 422 Drawable preview = image.getDrawable(); 423 int w = preview.getIntrinsicWidth(); 424 int h = preview.getIntrinsicHeight(); 425 if (createItemInfo instanceof PendingAddWidgetInfo) { 426 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 427 int[] spanXY = CellLayout.rectToCell(getResources(), 428 createWidgetInfo.minWidth, createWidgetInfo.minHeight, null); 429 createItemInfo.spanX = spanXY[0]; 430 createItemInfo.spanY = spanXY[1]; 431 432 b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 433 renderDrawableToBitmap(preview, b, 0, 0, w, h, 1, 1); 434 } else { 435 // Workaround for the fact that we don't keep the original ResolveInfo associated with 436 // the shortcut around. To get the icon, we just render the preview image (which has 437 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 438 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 439 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 440 mCanvas.setBitmap(b); 441 mCanvas.save(); 442 preview.draw(mCanvas); 443 mCanvas.restore(); 444 createItemInfo.spanX = createItemInfo.spanY = 1; 445 } 446 447 // Start the drag 448 mLauncher.lockScreenOrientation(); 449 mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, 450 createItemInfo.spanY, b); 451 mDragController.startDrag(image, b, this, createItemInfo, 452 DragController.DRAG_ACTION_COPY, null); 453 b.recycle(); 454 } 455 @Override 456 protected boolean beginDragging(View v) { 457 if (!super.beginDragging(v)) return false; 458 459 460 if (v instanceof PagedViewIcon) { 461 beginDraggingApplication(v); 462 } else if (v instanceof PagedViewWidget) { 463 beginDraggingWidget(v); 464 } 465 466 // Go into spring loaded mode 467 int currentPageIndex = mLauncher.getWorkspace().getCurrentPage(); 468 CellLayout currentPage = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPageIndex); 469 mLauncher.enterSpringLoadedDragMode(currentPage); 470 return true; 471 } 472 private void endDragging(boolean success) { 473 mLauncher.exitSpringLoadedDragMode(); 474 mLauncher.getWorkspace().onDragStopped(success); 475 mLauncher.unlockScreenOrientation(); 476 477 } 478 479 /* 480 * DragSource implementation 481 */ 482 @Override 483 public void onDragViewVisible() {} 484 @Override 485 public void onDropCompleted(View target, DragObject d, boolean success) { 486 endDragging(success); 487 488 // Display an error message if the drag failed due to there not being enough space on the 489 // target layout we were dropping on. 490 if (!success) { 491 boolean showOutOfSpaceMessage = false; 492 if (target instanceof Workspace) { 493 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 494 Workspace workspace = (Workspace) target; 495 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 496 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 497 if (layout != null) { 498 layout.calculateSpans(itemInfo); 499 showOutOfSpaceMessage = 500 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 501 } 502 } 503 // TODO-APPS_CUSTOMIZE: We need to handle this for folders as well later. 504 if (showOutOfSpaceMessage) { 505 mLauncher.showOutOfSpaceMessage(); 506 } 507 } 508 } 509 510 public void setContentType(ContentType type) { 511 mContentType = type; 512 setCurrentPage(0); 513 invalidatePageData(); 514 } 515 516 public boolean isContentType(ContentType type) { 517 return (mContentType == type); 518 } 519 520 /* 521 * Apps PagedView implementation 522 */ 523 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 524 int childCount = layout.getChildCount(); 525 for (int i = 0; i < childCount; ++i) { 526 layout.getChildAt(i).setVisibility(visibility); 527 } 528 } 529 private void setupPage(PagedViewCellLayout layout) { 530 layout.setCellCount(mCellCountX, mCellCountY); 531 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 532 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 533 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 534 535 // Note: We force a measure here to get around the fact that when we do layout calculations 536 // immediately after syncing, we don't have a proper width. That said, we already know the 537 // expected page width, so we can actually optimize by hiding all the TextView-based 538 // children that are expensive to measure, and let that happen naturally later. 539 setVisibilityOnChildren(layout, View.GONE); 540 int widthSpec = MeasureSpec.makeMeasureSpec(getPageContentWidth(), MeasureSpec.AT_MOST); 541 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 542 layout.setMinimumWidth(getPageContentWidth()); 543 layout.measure(widthSpec, heightSpec); 544 setVisibilityOnChildren(layout, View.VISIBLE); 545 } 546 public void syncAppsPages() { 547 // Ensure that we have the right number of pages 548 Context context = getContext(); 549 int numPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 550 for (int i = 0; i < numPages; ++i) { 551 PagedViewCellLayout layout = new PagedViewCellLayout(context); 552 setupPage(layout); 553 addView(layout); 554 } 555 } 556 public void syncAppsPageItems(int page) { 557 // ensure that we have the right number of items on the pages 558 int numPages = getPageCount(); 559 int numCells = mCellCountX * mCellCountY; 560 int startIndex = page * numCells; 561 int endIndex = Math.min(startIndex + numCells, mApps.size()); 562 PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page); 563 564 layout.removeAllViewsOnPage(); 565 ArrayList<Object> items = new ArrayList<Object>(); 566 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 567 for (int i = startIndex; i < endIndex; ++i) { 568 ApplicationInfo info = mApps.get(i); 569 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 570 R.layout.apps_customize_application, layout, false); 571 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 572 icon.setOnClickListener(this); 573 icon.setOnLongClickListener(this); 574 icon.setOnTouchListener(this); 575 576 int index = i - startIndex; 577 int x = index % mCellCountX; 578 int y = index / mCellCountX; 579 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 580 581 items.add(info); 582 images.add(info.iconBitmap); 583 } 584 585 // Create the hardware layers 586 layout.allowHardwareLayerCreation(); 587 layout.createHardwareLayers(); 588 589 prepareGenerateHoloOutlinesTask(page, items, images); 590 } 591 592 /** 593 * Return the appropriate thread priority for loading for a given page (we give the current 594 * page much higher priority) 595 */ 596 private int getThreadPriorityForPage(int page) { 597 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 598 int pageDiff = Math.abs(page - mCurrentPage); 599 if (pageDiff <= 0) { 600 // return Process.THREAD_PRIORITY_DEFAULT; 601 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 602 } else if (pageDiff <= 1) { 603 // return Process.THREAD_PRIORITY_BACKGROUND; 604 return Process.THREAD_PRIORITY_DEFAULT; 605 } else { 606 // return Process.THREAD_PRIORITY_LOWEST; 607 return Process.THREAD_PRIORITY_DEFAULT; 608 } 609 } 610 /** 611 * Creates and executes a new AsyncTask to load a page of widget previews. 612 */ 613 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 614 int cellWidth, int cellHeight, int cellCountX) { 615 // Prune all tasks that are no longer needed 616 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 617 while (iter.hasNext()) { 618 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 619 int taskPage = task.page; 620 if ((taskPage == page) || 621 taskPage < getAssociatedLowerPageBound(mCurrentPage) || 622 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 623 task.cancel(false); 624 iter.remove(); 625 } else { 626 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 627 } 628 } 629 630 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 631 cellCountX, new AsyncTaskCallback() { 632 @Override 633 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 634 // Ensure that this task starts running at the correct priority 635 task.syncThreadPriority(); 636 637 // Load each of the widget/shortcut previews 638 ArrayList<Object> items = data.items; 639 ArrayList<Bitmap> images = data.generatedImages; 640 int count = items.size(); 641 int cellWidth = data.cellWidth; 642 int cellHeight = data.cellHeight; 643 for (int i = 0; i < count && !task.isCancelled(); ++i) { 644 // Before work on each item, ensure that this task is running at the correct 645 // priority 646 task.syncThreadPriority(); 647 648 Object rawInfo = items.get(i); 649 if (rawInfo instanceof AppWidgetProviderInfo) { 650 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 651 int[] cellSpans = CellLayout.rectToCell(getResources(), 652 info.minWidth, info.minHeight, null); 653 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 654 cellWidth, cellHeight)); 655 } else if (rawInfo instanceof ResolveInfo) { 656 // Fill in the shortcuts information 657 ResolveInfo info = (ResolveInfo) rawInfo; 658 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 659 } 660 } 661 } 662 }, 663 new AsyncTaskCallback() { 664 @Override 665 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 666 mRunningTasks.remove(task); 667 if (task.isCancelled()) return; 668 if (task.page > getPageCount()) return; 669 if (task.pageContentType != mContentType) return; 670 onSyncWidgetPageItems(data); 671 } 672 }); 673 674 // Ensure that the task is appropriately prioritized and runs in parallel 675 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, mContentType, 676 AsyncTaskPageData.Type.LoadWidgetPreviewData); 677 t.setThreadPriority(getThreadPriorityForPage(page)); 678 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 679 mRunningTasks.add(t); 680 } 681 /** 682 * Creates and executes a new AsyncTask to load the outlines for a page of content. 683 */ 684 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 685 ArrayList<Bitmap> images) { 686 // Prune old tasks for this page 687 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 688 while (iter.hasNext()) { 689 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 690 int taskPage = task.page; 691 if ((taskPage == page) && 692 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 693 task.cancel(false); 694 iter.remove(); 695 } 696 } 697 698 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 699 new AsyncTaskCallback() { 700 @Override 701 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 702 // Ensure that this task starts running at the correct priority 703 task.syncThreadPriority(); 704 705 ArrayList<Bitmap> images = data.generatedImages; 706 ArrayList<Bitmap> srcImages = data.sourceImages; 707 int count = srcImages.size(); 708 Canvas c = new Canvas(); 709 for (int i = 0; i < count && !task.isCancelled(); ++i) { 710 // Before work on each item, ensure that this task is running at the correct 711 // priority 712 task.syncThreadPriority(); 713 714 Bitmap b = srcImages.get(i); 715 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 716 Bitmap.Config.ARGB_8888); 717 718 c.setBitmap(outline); 719 c.save(); 720 c.drawBitmap(b, 0, 0, null); 721 c.restore(); 722 723 images.add(outline); 724 } 725 } 726 }, 727 new AsyncTaskCallback() { 728 @Override 729 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 730 mRunningTasks.remove(task); 731 if (task.isCancelled()) return; 732 if (task.page > getPageCount()) return; 733 if (task.pageContentType != mContentType) return; 734 onHolographicPageItemsLoaded(data); 735 } 736 }); 737 738 // Ensure that the outline task always runs in the background, serially 739 AppsCustomizeAsyncTask t = 740 new AppsCustomizeAsyncTask(page, mContentType, 741 AsyncTaskPageData.Type.LoadHolographicIconsData); 742 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 743 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 744 mRunningTasks.add(t); 745 } 746 747 /* 748 * Widgets PagedView implementation 749 */ 750 private void setupPage(PagedViewGridLayout layout) { 751 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 752 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 753 754 // Note: We force a measure here to get around the fact that when we do layout calculations 755 // immediately after syncing, we don't have a proper width. That said, we already know the 756 // expected page width, so we can actually optimize by hiding all the TextView-based 757 // children that are expensive to measure, and let that happen naturally later. 758 setVisibilityOnChildren(layout, View.GONE); 759 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 760 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 761 layout.setMinimumWidth(getPageContentWidth()); 762 layout.measure(widthSpec, heightSpec); 763 setVisibilityOnChildren(layout, View.VISIBLE); 764 } 765 private synchronized void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 766 float scaleX, float scaleY) { 767 if (bitmap != null) { 768 Canvas c = new Canvas(bitmap); 769 c.scale(scaleX, scaleY); 770 Rect oldBounds = d.copyBounds(); 771 d.setBounds(x, y, x + w, y + h); 772 d.draw(c); 773 d.setBounds(oldBounds); // Restore the bounds 774 } 775 } 776 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 777 // Render the icon 778 Bitmap preview = Bitmap.createBitmap(cellWidth, mAppIconSize, Config.ARGB_8888); 779 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 780 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize, 1f, 1f); 781 return preview; 782 } 783 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 784 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 785 786 // Calculate the size of the drawable 787 cellHSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellHSpan)); 788 cellVSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellVSpan)); 789 int expectedWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 790 int expectedHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 791 792 // Scale down the bitmap to fit the space 793 float widgetPreviewScale = (float) cellWidth / expectedWidth; 794 expectedWidth = (int) (widgetPreviewScale * expectedWidth); 795 expectedHeight = (int) (widgetPreviewScale * expectedHeight); 796 797 // Load the preview image if possible 798 String packageName = info.provider.getPackageName(); 799 Drawable drawable = null; 800 Bitmap preview = null; 801 if (info.previewImage != 0) { 802 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 803 if (drawable == null) { 804 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 805 + " for provider: " + info.provider); 806 } else { 807 // Scale down the preview to the dimensions we want 808 int imageWidth = drawable.getIntrinsicWidth(); 809 int imageHeight = drawable.getIntrinsicHeight(); 810 float aspect = (float) imageWidth / imageHeight; 811 int newWidth = imageWidth; 812 int newHeight = imageHeight; 813 if (aspect > 1f) { 814 newWidth = expectedWidth; 815 newHeight = (int) (imageHeight * ((float) expectedWidth / imageWidth)); 816 } else { 817 newHeight = expectedHeight; 818 newWidth = (int) (imageWidth * ((float) expectedHeight / imageHeight)); 819 } 820 821 preview = Bitmap.createBitmap(newWidth, newHeight, Config.ARGB_8888); 822 renderDrawableToBitmap(drawable, preview, 0, 0, newWidth, newHeight, 1f, 1f); 823 } 824 } 825 826 // Generate a preview image if we couldn't load one 827 if (drawable == null) { 828 Resources resources = mLauncher.getResources(); 829 830 // Specify the dimensions of the bitmap 831 if (info.minWidth >= info.minHeight) { 832 expectedWidth = cellWidth; 833 expectedHeight = mWidgetPreviewIconPaddedDimension; 834 } else { 835 // Note that in vertical widgets, we might not have enough space due to the text 836 // label, so be conservative and use the width as a height bound 837 expectedWidth = mWidgetPreviewIconPaddedDimension; 838 expectedHeight = cellWidth; 839 } 840 841 preview = Bitmap.createBitmap(expectedWidth, expectedHeight, Config.ARGB_8888); 842 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, expectedWidth, 843 expectedHeight, 1f,1f); 844 845 // Draw the icon in the top left corner 846 try { 847 Drawable icon = null; 848 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 849 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 850 851 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 852 renderDrawableToBitmap(icon, preview, offset, offset, 853 mAppIconSize, mAppIconSize, 1f, 1f); 854 } catch (Resources.NotFoundException e) {} 855 } 856 return preview; 857 } 858 public void syncWidgetPages() { 859 // Ensure that we have the right number of pages 860 Context context = getContext(); 861 int[] countX = { mWidgetCountX, mShortcutCountX }; 862 int[] countY = { mWidgetCountY, mShortcutCountY }; 863 Object[] collection = { mWidgets, mShortcuts }; 864 for (int i = 0; i < 2; ++i) { 865 ArrayList<Object> list = (ArrayList<Object>) collection[i]; 866 int numItemsPerPage = countX[i] * countY[i]; 867 int numItemPages = (int) Math.ceil(list.size() / (float) numItemsPerPage); 868 for (int j = 0; j < numItemPages; ++j) { 869 PagedViewGridLayout layout = new PagedViewGridLayout(context, countX[i], 870 countY[i]); 871 setupPage(layout); 872 addView(layout); 873 } 874 } 875 } 876 public void syncWidgetPageItems(int page) { 877 int[] countX = { mWidgetCountX, mShortcutCountX }; 878 int[] countY = { mWidgetCountY, mShortcutCountY }; 879 int[] widthGap = { mWidgetWidthGap, mWidgetWidthGap }; 880 int[] heightGap = { mWidgetHeightGap, mWidgetHeightGap }; 881 int[] numItemsPerPage = { mWidgetCountX * mWidgetCountY, 882 mShortcutCountX * mShortcutCountY }; 883 Object[] collection = { mWidgets, mShortcuts }; 884 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 885 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 886 int numWidgetPages = (int) Math.ceil(mWidgets.size() / (float) numItemsPerPage[0]); 887 int[] offsets = { page * numItemsPerPage[0], (page - numWidgetPages) * numItemsPerPage[1] }; 888 int index = (page < numWidgetPages ? 0 : 1); 889 890 // Calculate the dimensions of each cell we are giving to each widget 891 ArrayList<Object> list = (ArrayList<Object>) collection[index]; 892 ArrayList<Object> items = new ArrayList<Object>(); 893 int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 894 - ((countX[index] - 1) * widthGap[index])) / countX[index]); 895 int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 896 - ((countY[index] - 1) * heightGap[index])) / countY[index]); 897 898 int offset = offsets[index]; 899 for (int i = offset; i < Math.min(offset + numItemsPerPage[index], list.size()); ++i) { 900 items.add(list.get(i)); 901 } 902 903 prepareLoadWidgetPreviewsTask(page, items, cellWidth, cellHeight, countX[index]); 904 } 905 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 906 int page = data.page; 907 PagedViewGridLayout layout = (PagedViewGridLayout) getChildAt(page); 908 layout.removeAllViews(); 909 910 ArrayList<Object> items = data.items; 911 int count = items.size(); 912 int cellWidth = data.cellWidth; 913 int cellHeight = data.cellHeight; 914 int cellCountX = data.cellCountX; 915 for (int i = 0; i < count; ++i) { 916 Object rawInfo = items.get(i); 917 PendingAddItemInfo createItemInfo = null; 918 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 919 R.layout.apps_customize_widget, layout, false); 920 if (rawInfo instanceof AppWidgetProviderInfo) { 921 // Fill in the widget information 922 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 923 createItemInfo = new PendingAddWidgetInfo(info, null, null); 924 int[] cellSpans = CellLayout.rectToCell(getResources(), 925 info.minWidth, info.minHeight, null); 926 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 927 widget.applyFromAppWidgetProviderInfo(info, preview, -1, cellSpans, 928 mHolographicOutlineHelper); 929 widget.setTag(createItemInfo); 930 } else if (rawInfo instanceof ResolveInfo) { 931 // Fill in the shortcuts information 932 ResolveInfo info = (ResolveInfo) rawInfo; 933 createItemInfo = new PendingAddItemInfo(); 934 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 935 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 936 info.activityInfo.name); 937 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 938 widget.applyFromResolveInfo(mPackageManager, info, preview, 939 mHolographicOutlineHelper); 940 widget.setTag(createItemInfo); 941 } 942 widget.setOnClickListener(this); 943 widget.setOnLongClickListener(this); 944 widget.setOnTouchListener(this); 945 946 // Layout each widget 947 int ix = i % cellCountX; 948 int iy = i / cellCountX; 949 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 950 new GridLayout.Group(iy, 1, GridLayout.LEFT), 951 new GridLayout.Group(ix, 1, GridLayout.TOP)); 952 lp.width = cellWidth; 953 lp.height = cellHeight; 954 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 955 if (iy > 0) lp.topMargin = mWidgetHeightGap; 956 layout.addView(widget, lp); 957 } 958 959 invalidate(); 960 forceUpdateAdjacentPagesAlpha(); 961 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 962 } 963 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 964 // Invalidate early to short-circuit children invalidates 965 invalidate(); 966 967 int page = data.page; 968 ViewGroup layout = (ViewGroup) getChildAt(page); 969 if (layout instanceof PagedViewCellLayout) { 970 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 971 int count = cl.getPageChildCount(); 972 if (count != data.generatedImages.size()) return; 973 for (int i = 0; i < count; ++i) { 974 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 975 icon.setHolographicOutline(data.generatedImages.get(i)); 976 } 977 } else { 978 int count = layout.getChildCount(); 979 if (count != data.generatedImages.size()) return; 980 for (int i = 0; i < count; ++i) { 981 View v = layout.getChildAt(i); 982 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 983 } 984 } 985 } 986 987 @Override 988 public void syncPages() { 989 removeAllViews(); 990 991 // Remove all background asyc tasks if we are loading content anew 992 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 993 while (iter.hasNext()) { 994 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 995 task.cancel(false); 996 iter.remove(); 997 } 998 999 switch (mContentType) { 1000 case Applications: 1001 syncAppsPages(); 1002 break; 1003 case Widgets: 1004 syncWidgetPages(); 1005 break; 1006 } 1007 } 1008 @Override 1009 public void syncPageItems(int page) { 1010 switch (mContentType) { 1011 case Applications: 1012 syncAppsPageItems(page); 1013 break; 1014 case Widgets: 1015 syncWidgetPageItems(page); 1016 break; 1017 } 1018 } 1019 1020 /** 1021 * Used by the parent to get the content width to set the tab bar to 1022 * @return 1023 */ 1024 public int getPageContentWidth() { 1025 return mContentWidth; 1026 } 1027 1028 @Override 1029 protected void onPageBeginMoving() { 1030 /* TO BE ENABLED LATER 1031 setChildrenDrawnWithCacheEnabled(true); 1032 for (int i = 0; i < getChildCount(); ++i) { 1033 View v = getChildAt(i); 1034 if (v instanceof PagedViewCellLayout) { 1035 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(true); 1036 } 1037 } 1038 */ 1039 super.onPageBeginMoving(); 1040 } 1041 1042 @Override 1043 protected void onPageEndMoving() { 1044 /* TO BE ENABLED LATER 1045 for (int i = 0; i < getChildCount(); ++i) { 1046 View v = getChildAt(i); 1047 if (v instanceof PagedViewCellLayout) { 1048 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(false); 1049 } 1050 } 1051 setChildrenDrawnWithCacheEnabled(false); 1052 */ 1053 super.onPageEndMoving(); 1054 } 1055 1056 /* 1057 * AllAppsView implementation 1058 */ 1059 @Override 1060 public void setup(Launcher launcher, DragController dragController) { 1061 mLauncher = launcher; 1062 mDragController = dragController; 1063 } 1064 @Override 1065 public void zoom(float zoom, boolean animate) { 1066 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1067 } 1068 @Override 1069 public boolean isVisible() { 1070 return (getVisibility() == VISIBLE); 1071 } 1072 @Override 1073 public boolean isAnimating() { 1074 return false; 1075 } 1076 @Override 1077 public void setApps(ArrayList<ApplicationInfo> list) { 1078 mApps = list; 1079 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1080 1081 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1082 // request a layout to do this test and invalidate the page data when ready. 1083 if (testDataReady()) requestLayout(); 1084 } 1085 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1086 // We add it in place, in alphabetical order 1087 int count = list.size(); 1088 for (int i = 0; i < count; ++i) { 1089 ApplicationInfo info = list.get(i); 1090 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1091 if (index < 0) { 1092 mApps.add(-(index + 1), info); 1093 } 1094 } 1095 } 1096 @Override 1097 public void addApps(ArrayList<ApplicationInfo> list) { 1098 addAppsWithoutInvalidate(list); 1099 invalidatePageData(); 1100 } 1101 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1102 ComponentName removeComponent = item.intent.getComponent(); 1103 int length = list.size(); 1104 for (int i = 0; i < length; ++i) { 1105 ApplicationInfo info = list.get(i); 1106 if (info.intent.getComponent().equals(removeComponent)) { 1107 return i; 1108 } 1109 } 1110 return -1; 1111 } 1112 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1113 // loop through all the apps and remove apps that have the same component 1114 int length = list.size(); 1115 for (int i = 0; i < length; ++i) { 1116 ApplicationInfo info = list.get(i); 1117 int removeIndex = findAppByComponent(mApps, info); 1118 if (removeIndex > -1) { 1119 mApps.remove(removeIndex); 1120 } 1121 } 1122 } 1123 @Override 1124 public void removeApps(ArrayList<ApplicationInfo> list) { 1125 removeAppsWithoutInvalidate(list); 1126 invalidatePageData(); 1127 } 1128 @Override 1129 public void updateApps(ArrayList<ApplicationInfo> list) { 1130 // We remove and re-add the updated applications list because it's properties may have 1131 // changed (ie. the title), and this will ensure that the items will be in their proper 1132 // place in the list. 1133 removeAppsWithoutInvalidate(list); 1134 addAppsWithoutInvalidate(list); 1135 invalidatePageData(); 1136 } 1137 @Override 1138 public void reset() { 1139 if (mContentType != ContentType.Applications) { 1140 // Reset to the first page of the Apps pane 1141 AppsCustomizeTabHost tabs = (AppsCustomizeTabHost) 1142 mLauncher.findViewById(R.id.apps_customize_pane); 1143 tabs.setCurrentTabByTag(tabs.getTabTagForContentType(ContentType.Applications)); 1144 } else { 1145 setCurrentPage(0); 1146 invalidatePageData(); 1147 } 1148 } 1149 @Override 1150 public void dumpState() { 1151 // TODO: Dump information related to current list of Applications, Widgets, etc. 1152 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1153 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1154 dumpAppWidgetProviderInfoList(LOG_TAG, "mShortcuts", mShortcuts); 1155 } 1156 private void dumpAppWidgetProviderInfoList(String tag, String label, 1157 ArrayList<Object> list) { 1158 Log.d(tag, label + " size=" + list.size()); 1159 for (Object i: list) { 1160 if (i instanceof AppWidgetProviderInfo) { 1161 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1162 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1163 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1164 + " initialLayout=" + info.initialLayout 1165 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1166 } else if (i instanceof ResolveInfo) { 1167 ResolveInfo info = (ResolveInfo) i; 1168 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1169 + info.icon); 1170 } 1171 } 1172 } 1173 @Override 1174 public void surrender() { 1175 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1176 // should stop this now. 1177 } 1178 1179 @Override 1180 protected int getPageWidthForScrollingIndicator() { 1181 return getPageContentWidth(); 1182 } 1183 1184 /* 1185 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1186 * widget previews in the background with the AsyncTasks. 1187 */ 1188 protected int getAssociatedLowerPageBound(int page) { 1189 return Math.max(0, page - 2); 1190 } 1191 protected int getAssociatedUpperPageBound(int page) { 1192 final int count = getChildCount(); 1193 return Math.min(page + 2, count - 1); 1194 } 1195 1196 @Override 1197 protected String getCurrentPageDescription() { 1198 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1199 int stringId = R.string.default_scroll_format; 1200 switch (mContentType) { 1201 case Applications: 1202 stringId = R.string.apps_customize_apps_scroll_format; 1203 break; 1204 case Widgets: 1205 stringId = R.string.apps_customize_widgets_scroll_format; 1206 break; 1207 } 1208 return String.format(mContext.getString(stringId), page + 1, getChildCount()); 1209 } 1210} 1211