AppsCustomizePagedView.java revision fd3385fe9e0f034b04f99d5d59a58d74fe040da4
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 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 71 AsyncTaskCallback postR) { 72 page = p; 73 items = l; 74 sourceImages = si; 75 generatedImages = new ArrayList<Bitmap>(); 76 cellWidth = cellHeight = -1; 77 doInBackgroundCallback = bgR; 78 postExecuteCallback = postR; 79 } 80 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 81 AsyncTaskCallback postR) { 82 page = p; 83 items = l; 84 generatedImages = new ArrayList<Bitmap>(); 85 cellWidth = cw; 86 cellHeight = ch; 87 doInBackgroundCallback = bgR; 88 postExecuteCallback = postR; 89 } 90 int page; 91 ArrayList<Object> items; 92 ArrayList<Bitmap> sourceImages; 93 ArrayList<Bitmap> generatedImages; 94 int cellWidth; 95 int cellHeight; 96 AsyncTaskCallback doInBackgroundCallback; 97 AsyncTaskCallback postExecuteCallback; 98} 99 100/** 101 * A generic template for an async task used in AppsCustomize. 102 */ 103class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 104 AppsCustomizeAsyncTask(int p, AppsCustomizePagedView.ContentType t) { 105 page = p; 106 pageContentType = t; 107 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 108 } 109 @Override 110 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 111 if (params.length != 1) return null; 112 // Load each of the widget previews in the background 113 params[0].doInBackgroundCallback.run(this, params[0]); 114 return params[0]; 115 } 116 @Override 117 protected void onPostExecute(AsyncTaskPageData result) { 118 // All the widget previews are loaded, so we can just callback to inflate the page 119 result.postExecuteCallback.run(this, result); 120 } 121 122 void setThreadPriority(int p) { 123 threadPriority = p; 124 } 125 void syncThreadPriority() { 126 Process.setThreadPriority(threadPriority); 127 } 128 129 // The page that this async task is associated with 130 int page; 131 AppsCustomizePagedView.ContentType pageContentType; 132 int threadPriority; 133} 134 135/** 136 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 137 */ 138public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 139 AllAppsView, View.OnClickListener, DragSource { 140 static final String LOG_TAG = "AppsCustomizePagedView"; 141 142 /** 143 * The different content types that this paged view can show. 144 */ 145 public enum ContentType { 146 Applications, 147 Widgets 148 } 149 150 // Refs 151 private Launcher mLauncher; 152 private DragController mDragController; 153 private final LayoutInflater mLayoutInflater; 154 private final PackageManager mPackageManager; 155 156 // Content 157 private ContentType mContentType; 158 private ArrayList<ApplicationInfo> mApps; 159 private List<Object> mWidgets; 160 161 // Caching 162 private Canvas mCanvas; 163 private Drawable mDefaultWidgetBackground; 164 private IconCache mIconCache; 165 166 // Dimens 167 private int mContentWidth; 168 private int mMaxWidgetSpan, mMinWidgetSpan; 169 private int mWidgetWidthGap, mWidgetHeightGap; 170 private int mWidgetCountX, mWidgetCountY; 171 private final int mWidgetPreviewIconPaddedDimension; 172 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 173 private PagedViewCellLayout mWidgetSpacingLayout; 174 175 // Previews & outlines 176 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 177 private HolographicOutlineHelper mHolographicOutlineHelper; 178 179 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 180 super(context, attrs); 181 mLayoutInflater = LayoutInflater.from(context); 182 mPackageManager = context.getPackageManager(); 183 mContentType = ContentType.Applications; 184 mApps = new ArrayList<ApplicationInfo>(); 185 mWidgets = new ArrayList<Object>(); 186 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 187 mHolographicOutlineHelper = new HolographicOutlineHelper(); 188 mCanvas = new Canvas(); 189 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 190 191 // Save the default widget preview background 192 Resources resources = context.getResources(); 193 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview); 194 195 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PagedView, 0, 0); 196 // TODO-APPS_CUSTOMIZE: remove these unnecessary attrs after 197 mCellCountX = a.getInt(R.styleable.PagedView_cellCountX, 6); 198 mCellCountY = a.getInt(R.styleable.PagedView_cellCountY, 4); 199 a.recycle(); 200 a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 201 mWidgetWidthGap = 202 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 203 mWidgetHeightGap = 204 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 205 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 206 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 207 a.recycle(); 208 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 209 210 // The max widget span is the length N, such that NxN is the largest bounds that the widget 211 // preview can be before applying the widget scaling 212 mMinWidgetSpan = 1; 213 mMaxWidgetSpan = 3; 214 215 // The padding on the non-matched dimension for the default widget preview icons 216 // (top + bottom) 217 int iconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 218 mWidgetPreviewIconPaddedDimension = 219 (int) (iconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 220 } 221 222 @Override 223 protected void init() { 224 super.init(); 225 mCenterPagesVertically = false; 226 227 Context context = getContext(); 228 Resources r = context.getResources(); 229 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 230 } 231 232 @Override 233 protected void onWallpaperTap(android.view.MotionEvent ev) { 234 mLauncher.showWorkspace(true); 235 } 236 237 /** 238 * This differs from isDataReady as this is the test done if isDataReady is not set. 239 */ 240 private boolean testDataReady() { 241 // We only do this test once, and we default to the Applications page, so we only really 242 // have to wait for there to be apps. 243 return !mApps.isEmpty(); 244 } 245 246 protected void onDataReady(int width, int height) { 247 // Note that we transpose the counts in portrait so that we get a similar layout 248 boolean isLandscape = getResources().getConfiguration().orientation == 249 Configuration.ORIENTATION_LANDSCAPE; 250 int maxCellCountX = Integer.MAX_VALUE; 251 int maxCellCountY = Integer.MAX_VALUE; 252 if (LauncherApplication.isScreenLarge()) { 253 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 254 LauncherModel.getCellCountY()); 255 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 256 LauncherModel.getCellCountX()); 257 } 258 259 // Now that the data is ready, we can calculate the content width, the number of cells to 260 // use for each page 261 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 262 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 263 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 264 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 265 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 266 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 267 mWidgetCountX = Math.max(1, (int) Math.round(mCellCountX / 2f)); 268 mWidgetCountY = Math.max(1, (int) Math.round(mCellCountY / 3f)); 269 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 270 271 invalidatePageData(); 272 } 273 274 @Override 275 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 276 int width = MeasureSpec.getSize(widthMeasureSpec); 277 int height = MeasureSpec.getSize(heightMeasureSpec); 278 if (!isDataReady()) { 279 if (testDataReady()) { 280 setDataIsReady(); 281 setMeasuredDimension(width, height); 282 onDataReady(width, height); 283 } 284 } 285 286 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 287 } 288 289 /** Removes and returns the ResolveInfo with the specified ComponentName */ 290 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 291 ComponentName cn) { 292 Iterator<ResolveInfo> iter = list.iterator(); 293 while (iter.hasNext()) { 294 ResolveInfo rinfo = iter.next(); 295 ActivityInfo info = rinfo.activityInfo; 296 ComponentName c = new ComponentName(info.packageName, info.name); 297 if (c.equals(cn)) { 298 iter.remove(); 299 return rinfo; 300 } 301 } 302 return null; 303 } 304 305 public void onPackagesUpdated() { 306 // Get the list of widgets and shortcuts 307 mWidgets.clear(); 308 List<AppWidgetProviderInfo> widgets = 309 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 310 Collections.sort(widgets, 311 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 312 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 313 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 314 Collections.sort(shortcuts, 315 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 316 mWidgets.addAll(widgets); 317 mWidgets.addAll(shortcuts); 318 319 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 320 // a layout to do this test and invalidate the page data when ready. 321 if (testDataReady()) requestLayout(); 322 } 323 324 @Override 325 public void onClick(View v) { 326 if (v instanceof PagedViewIcon) { 327 // Animate some feedback to the click 328 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 329 animateClickFeedback(v, new Runnable() { 330 @Override 331 public void run() { 332 mLauncher.startActivitySafely(appInfo.intent, appInfo); 333 } 334 }); 335 } else if (v instanceof PagedViewWidget) { 336 // Let the user know that they have to long press to add a widget 337 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 338 Toast.LENGTH_SHORT).show(); 339 340 // Create a little animation to show that the widget can move 341 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 342 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 343 AnimatorSet bounce = new AnimatorSet(); 344 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 345 tyuAnim.setDuration(125); 346 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 347 tydAnim.setDuration(100); 348 bounce.play(tyuAnim).before(tydAnim); 349 bounce.setInterpolator(new AccelerateInterpolator()); 350 bounce.start(); 351 } 352 } 353 354 /* 355 * PagedViewWithDraggableItems implementation 356 */ 357 @Override 358 protected void determineDraggingStart(android.view.MotionEvent ev) { 359 // Disable dragging by pulling an app down for now. 360 } 361 private void beginDraggingApplication(View v) { 362 // Make a copy of the ApplicationInfo 363 ApplicationInfo appInfo = new ApplicationInfo((ApplicationInfo) v.getTag()); 364 365 // Compose the drag image (top compound drawable, index is 1) 366 final TextView tv = (TextView) v; 367 final Drawable icon = tv.getCompoundDrawables()[1]; 368 Bitmap b = Bitmap.createBitmap(v.getWidth(), v.getHeight(), 369 Bitmap.Config.ARGB_8888); 370 mCanvas.setBitmap(b); 371 mCanvas.save(); 372 mCanvas.translate((v.getWidth() - icon.getIntrinsicWidth()) / 2, v.getPaddingTop()); 373 icon.draw(mCanvas); 374 mCanvas.restore(); 375 376 // Compose the visible rect of the drag image 377 Rect dragRect = null; 378 if (v instanceof TextView) { 379 int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 380 int top = v.getPaddingTop(); 381 int left = (b.getWidth() - iconSize) / 2; 382 int right = left + iconSize; 383 int bottom = top + iconSize; 384 dragRect = new Rect(left, top, right, bottom); 385 } 386 387 // Start the drag 388 mLauncher.lockScreenOrientation(); 389 mLauncher.getWorkspace().onDragStartedWithItemSpans(1, 1, b); 390 mDragController.startDrag(v, b, this, appInfo, DragController.DRAG_ACTION_COPY, dragRect); 391 b.recycle(); 392 } 393 private void beginDraggingWidget(View v) { 394 // Get the widget preview as the drag representation 395 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 396 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 397 398 // Compose the drag image 399 Bitmap b; 400 Drawable preview = image.getDrawable(); 401 int w = preview.getIntrinsicWidth(); 402 int h = preview.getIntrinsicHeight(); 403 if (createItemInfo instanceof PendingAddWidgetInfo) { 404 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 405 int[] spanXY = CellLayout.rectToCell(getResources(), 406 createWidgetInfo.minWidth, createWidgetInfo.minHeight, null); 407 createItemInfo.spanX = spanXY[0]; 408 createItemInfo.spanY = spanXY[1]; 409 410 b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 411 renderDrawableToBitmap(preview, b, 0, 0, w, h, 1, 1); 412 } else { 413 // Workaround for the fact that we don't keep the original ResolveInfo associated with 414 // the shortcut around. To get the icon, we just render the preview image (which has 415 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 416 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 417 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 418 mCanvas.setBitmap(b); 419 mCanvas.save(); 420 preview.draw(mCanvas); 421 mCanvas.restore(); 422 createItemInfo.spanX = createItemInfo.spanY = 1; 423 } 424 425 // Start the drag 426 mLauncher.lockScreenOrientation(); 427 mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, 428 createItemInfo.spanY, b); 429 mDragController.startDrag(image, b, this, createItemInfo, 430 DragController.DRAG_ACTION_COPY, null); 431 b.recycle(); 432 } 433 @Override 434 protected boolean beginDragging(View v) { 435 if (!super.beginDragging(v)) return false; 436 437 438 if (v instanceof PagedViewIcon) { 439 beginDraggingApplication(v); 440 } else if (v instanceof PagedViewWidget) { 441 beginDraggingWidget(v); 442 } 443 444 // Go into spring loaded mode 445 int currentPageIndex = mLauncher.getWorkspace().getCurrentPage(); 446 CellLayout currentPage = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPageIndex); 447 mLauncher.enterSpringLoadedDragMode(currentPage); 448 return true; 449 } 450 private void endDragging(boolean success) { 451 mLauncher.exitSpringLoadedDragMode(); 452 mLauncher.getWorkspace().onDragStopped(success); 453 mLauncher.unlockScreenOrientation(); 454 455 } 456 457 /* 458 * DragSource implementation 459 */ 460 @Override 461 public void onDragViewVisible() {} 462 @Override 463 public void onDropCompleted(View target, DragObject d, boolean success) { 464 endDragging(success); 465 466 // Display an error message if the drag failed due to there not being enough space on the 467 // target layout we were dropping on. 468 if (!success) { 469 boolean showOutOfSpaceMessage = false; 470 if (target instanceof Workspace) { 471 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 472 Workspace workspace = (Workspace) target; 473 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 474 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 475 if (layout != null) { 476 layout.calculateSpans(itemInfo); 477 showOutOfSpaceMessage = 478 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 479 } 480 } 481 // TODO-APPS_CUSTOMIZE: We need to handle this for folders as well later. 482 if (showOutOfSpaceMessage) { 483 mLauncher.showOutOfSpaceMessage(); 484 } 485 } 486 } 487 488 public void setContentType(ContentType type) { 489 mContentType = type; 490 setCurrentPage(0); 491 invalidatePageData(); 492 } 493 494 public boolean isContentType(ContentType type) { 495 return (mContentType == type); 496 } 497 498 /* 499 * Apps PagedView implementation 500 */ 501 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 502 int childCount = layout.getChildCount(); 503 for (int i = 0; i < childCount; ++i) { 504 layout.getChildAt(i).setVisibility(visibility); 505 } 506 } 507 private void setupPage(PagedViewCellLayout layout) { 508 layout.setCellCount(mCellCountX, mCellCountY); 509 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 510 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 511 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 512 513 // Note: We force a measure here to get around the fact that when we do layout calculations 514 // immediately after syncing, we don't have a proper width. That said, we already know the 515 // expected page width, so we can actually optimize by hiding all the TextView-based 516 // children that are expensive to measure, and let that happen naturally later. 517 setVisibilityOnChildren(layout, View.GONE); 518 int widthSpec = MeasureSpec.makeMeasureSpec(getPageContentWidth(), MeasureSpec.AT_MOST); 519 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 520 layout.setMinimumWidth(getPageContentWidth()); 521 layout.measure(widthSpec, heightSpec); 522 setVisibilityOnChildren(layout, View.VISIBLE); 523 } 524 public void syncAppsPages() { 525 // Ensure that we have the right number of pages 526 Context context = getContext(); 527 int numPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 528 for (int i = 0; i < numPages; ++i) { 529 PagedViewCellLayout layout = new PagedViewCellLayout(context); 530 setupPage(layout); 531 addView(layout); 532 } 533 } 534 public void syncAppsPageItems(int page) { 535 // ensure that we have the right number of items on the pages 536 int numPages = getPageCount(); 537 int numCells = mCellCountX * mCellCountY; 538 int startIndex = page * numCells; 539 int endIndex = Math.min(startIndex + numCells, mApps.size()); 540 PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page); 541 layout.removeAllViewsOnPage(); 542 ArrayList<Object> items = new ArrayList<Object>(); 543 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 544 for (int i = startIndex; i < endIndex; ++i) { 545 ApplicationInfo info = mApps.get(i); 546 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 547 R.layout.apps_customize_application, layout, false); 548 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 549 icon.setOnClickListener(this); 550 icon.setOnLongClickListener(this); 551 icon.setOnTouchListener(this); 552 553 int index = i - startIndex; 554 int x = index % mCellCountX; 555 int y = index / mCellCountX; 556 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 557 558 items.add(info); 559 images.add(info.iconBitmap); 560 } 561 562 // Create the hardware layers 563 layout.allowHardwareLayerCreation(); 564 layout.createHardwareLayers(); 565 566 prepareGenerateHoloOutlinesTask(page, items, images); 567 } 568 569 /** 570 * Return the appropriate thread priority for loading for a given page (we give the current 571 * page much higher priority) 572 */ 573 private int getThreadPriorityForPage(int page) { 574 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 575 int pageDiff = Math.abs(page - mCurrentPage); 576 if (pageDiff <= 0) { 577 // return Process.THREAD_PRIORITY_DEFAULT; 578 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 579 } else if (pageDiff <= 1) { 580 // return Process.THREAD_PRIORITY_BACKGROUND; 581 return Process.THREAD_PRIORITY_DEFAULT; 582 } else { 583 // return Process.THREAD_PRIORITY_LOWEST; 584 return Process.THREAD_PRIORITY_DEFAULT; 585 } 586 } 587 /** 588 * Creates and executes a new AsyncTask to load a page of widget previews. 589 */ 590 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 591 int cellWidth, int cellHeight) { 592 // Prune all tasks that are no longer needed 593 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 594 while (iter.hasNext()) { 595 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 596 int taskPage = task.page; 597 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 598 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 599 task.cancel(false); 600 iter.remove(); 601 } else { 602 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 603 } 604 } 605 606 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 607 new AsyncTaskCallback() { 608 @Override 609 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 610 // Ensure that this task starts running at the correct priority 611 task.syncThreadPriority(); 612 613 // Load each of the widget/shortcut previews 614 ArrayList<Object> items = data.items; 615 ArrayList<Bitmap> images = data.generatedImages; 616 int count = items.size(); 617 int cellWidth = data.cellWidth; 618 int cellHeight = data.cellHeight; 619 for (int i = 0; i < count && !task.isCancelled(); ++i) { 620 // Before work on each item, ensure that this task is running at the correct 621 // priority 622 task.syncThreadPriority(); 623 624 Object rawInfo = items.get(i); 625 if (rawInfo instanceof AppWidgetProviderInfo) { 626 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 627 int[] cellSpans = CellLayout.rectToCell(getResources(), 628 info.minWidth, info.minHeight, null); 629 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 630 cellWidth, cellHeight)); 631 } else if (rawInfo instanceof ResolveInfo) { 632 // Fill in the shortcuts information 633 ResolveInfo info = (ResolveInfo) rawInfo; 634 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 635 } 636 } 637 } 638 }, 639 new AsyncTaskCallback() { 640 @Override 641 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 642 mRunningTasks.remove(task); 643 if (task.page > getPageCount()) return; 644 if (task.pageContentType != mContentType) return; 645 onSyncWidgetPageItems(data); 646 } 647 }); 648 649 // Ensure that the task is appropriately prioritized and runs in parallel 650 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, mContentType); 651 t.setThreadPriority(getThreadPriorityForPage(page)); 652 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 653 mRunningTasks.add(t); 654 } 655 /** 656 * Creates and executes a new AsyncTask to load the outlines for a page of content. 657 */ 658 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 659 ArrayList<Bitmap> images) { 660 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 661 new AsyncTaskCallback() { 662 @Override 663 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 664 // Ensure that this task starts running at the correct priority 665 task.syncThreadPriority(); 666 667 ArrayList<Bitmap> images = data.generatedImages; 668 ArrayList<Bitmap> srcImages = data.sourceImages; 669 int count = srcImages.size(); 670 Canvas c = new Canvas(); 671 for (int i = 0; i < count && !task.isCancelled(); ++i) { 672 // Before work on each item, ensure that this task is running at the correct 673 // priority 674 task.syncThreadPriority(); 675 676 Bitmap b = srcImages.get(i); 677 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 678 Bitmap.Config.ARGB_8888); 679 680 c.setBitmap(outline); 681 c.save(); 682 c.drawBitmap(b, 0, 0, null); 683 c.restore(); 684 685 images.add(outline); 686 } 687 } 688 }, 689 new AsyncTaskCallback() { 690 @Override 691 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 692 mRunningTasks.remove(task); 693 if (task.page > getPageCount()) return; 694 if (task.pageContentType != mContentType) return; 695 onHolographicPageItemsLoaded(data); 696 } 697 }); 698 699 // Ensure that the outline task always runs in the background, serially 700 AppsCustomizeAsyncTask t = 701 new AppsCustomizeAsyncTask(page, mContentType); 702 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 703 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 704 mRunningTasks.add(t); 705 } 706 707 /* 708 * Widgets PagedView implementation 709 */ 710 private void setupPage(PagedViewGridLayout layout) { 711 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 712 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 713 714 // Note: We force a measure here to get around the fact that when we do layout calculations 715 // immediately after syncing, we don't have a proper width. That said, we already know the 716 // expected page width, so we can actually optimize by hiding all the TextView-based 717 // children that are expensive to measure, and let that happen naturally later. 718 setVisibilityOnChildren(layout, View.GONE); 719 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 720 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 721 layout.setMinimumWidth(getPageContentWidth()); 722 layout.measure(widthSpec, heightSpec); 723 setVisibilityOnChildren(layout, View.VISIBLE); 724 } 725 private synchronized void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 726 float scaleX, float scaleY) { 727 if (bitmap != null) { 728 Canvas c = new Canvas(bitmap); 729 c.scale(scaleX, scaleY); 730 Rect oldBounds = d.copyBounds(); 731 d.setBounds(x, y, x + w, y + h); 732 d.draw(c); 733 d.setBounds(oldBounds); // Restore the bounds 734 } 735 } 736 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, 737 int cellHeight) { 738 Resources resources = mLauncher.getResources(); 739 int iconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 740 // We only need to make it wide enough so as not allow the preview to be scaled 741 int expectedWidth = cellWidth; 742 int expectedHeight = mWidgetPreviewIconPaddedDimension; 743 744 // Render the icon 745 Bitmap preview = Bitmap.createBitmap(expectedWidth, expectedHeight, Config.ARGB_8888); 746 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 747 renderDrawableToBitmap(icon, preview, 0, 0, iconSize, iconSize, 1f, 1f); 748 return preview; 749 } 750 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 751 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 752 753 // Calculate the size of the drawable 754 cellHSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellHSpan)); 755 cellVSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellVSpan)); 756 int expectedWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 757 int expectedHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 758 759 // Scale down the bitmap to fit the space 760 float widgetPreviewScale = (float) cellWidth / expectedWidth; 761 expectedWidth = (int) (widgetPreviewScale * expectedWidth); 762 expectedHeight = (int) (widgetPreviewScale * expectedHeight); 763 764 // Load the preview image if possible 765 String packageName = info.provider.getPackageName(); 766 Drawable drawable = null; 767 Bitmap preview = null; 768 if (info.previewImage != 0) { 769 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 770 if (drawable == null) { 771 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 772 + " for provider: " + info.provider); 773 } else { 774 // Scale down the preview to the dimensions we want 775 int imageWidth = drawable.getIntrinsicWidth(); 776 int imageHeight = drawable.getIntrinsicHeight(); 777 float aspect = (float) imageWidth / imageHeight; 778 int newWidth = imageWidth; 779 int newHeight = imageHeight; 780 if (aspect > 1f) { 781 newWidth = expectedWidth; 782 newHeight = (int) (imageHeight * ((float) expectedWidth / imageWidth)); 783 } else { 784 newHeight = expectedHeight; 785 newWidth = (int) (imageWidth * ((float) expectedHeight / imageHeight)); 786 } 787 788 preview = Bitmap.createBitmap(newWidth, newHeight, Config.ARGB_8888); 789 renderDrawableToBitmap(drawable, preview, 0, 0, newWidth, newHeight, 1f, 1f); 790 } 791 } 792 793 // Generate a preview image if we couldn't load one 794 if (drawable == null) { 795 Resources resources = mLauncher.getResources(); 796 int iconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 797 798 // Specify the dimensions of the bitmap 799 if (info.minWidth >= info.minHeight) { 800 expectedWidth = cellWidth; 801 expectedHeight = mWidgetPreviewIconPaddedDimension; 802 } else { 803 // Note that in vertical widgets, we might not have enough space due to the text 804 // label, so be conservative and use the width as a height bound 805 expectedWidth = mWidgetPreviewIconPaddedDimension; 806 expectedHeight = cellWidth; 807 } 808 809 preview = Bitmap.createBitmap(expectedWidth, expectedHeight, Config.ARGB_8888); 810 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, expectedWidth, 811 expectedHeight, 1f,1f); 812 813 // Draw the icon in the top left corner 814 try { 815 Drawable icon = null; 816 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 817 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 818 819 int offset = (int) (iconSize * sWidgetPreviewIconPaddingPercentage); 820 renderDrawableToBitmap(icon, preview, offset, offset, iconSize, iconSize, 1f, 1f); 821 } catch (Resources.NotFoundException e) {} 822 } 823 return preview; 824 } 825 public void syncWidgetPages() { 826 // Ensure that we have the right number of pages 827 Context context = getContext(); 828 int numWidgetsPerPage = mWidgetCountX * mWidgetCountY; 829 int numPages = (int) Math.ceil(mWidgets.size() / (float) numWidgetsPerPage); 830 for (int i = 0; i < numPages; ++i) { 831 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 832 mWidgetCountY); 833 setupPage(layout); 834 addView(layout); 835 } 836 } 837 public void syncWidgetPageItems(int page) { 838 // Calculate the dimensions of each cell we are giving to each widget 839 ArrayList<Object> widgets = new ArrayList<Object>(); 840 int cellWidth = ((mWidgetSpacingLayout.getContentWidth() 841 - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 842 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 843 int cellHeight = ((mWidgetSpacingLayout.getContentHeight() 844 - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 845 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 846 847 int numWidgetsPerPage = mWidgetCountX * mWidgetCountY; 848 int offset = page * numWidgetsPerPage; 849 for (int i = offset; i < Math.min(offset + numWidgetsPerPage, mWidgets.size()); ++i) { 850 widgets.add(mWidgets.get(i)); 851 } 852 853 prepareLoadWidgetPreviewsTask(page, widgets, cellWidth, cellHeight); 854 } 855 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 856 int page = data.page; 857 PagedViewGridLayout layout = (PagedViewGridLayout) getChildAt(page); 858 layout.removeAllViews(); 859 860 ArrayList<Object> items = data.items; 861 int count = items.size(); 862 int cellWidth = data.cellWidth; 863 int cellHeight = data.cellHeight; 864 for (int i = 0; i < count; ++i) { 865 Object rawInfo = items.get(i); 866 PendingAddItemInfo createItemInfo = null; 867 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 868 R.layout.apps_customize_widget, layout, false); 869 if (rawInfo instanceof AppWidgetProviderInfo) { 870 // Fill in the widget information 871 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 872 createItemInfo = new PendingAddWidgetInfo(info, null, null); 873 int[] cellSpans = CellLayout.rectToCell(getResources(), 874 info.minWidth, info.minHeight, null); 875 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 876 widget.applyFromAppWidgetProviderInfo(info, preview, -1, cellSpans, 877 mHolographicOutlineHelper); 878 widget.setTag(createItemInfo); 879 } else if (rawInfo instanceof ResolveInfo) { 880 // Fill in the shortcuts information 881 ResolveInfo info = (ResolveInfo) rawInfo; 882 createItemInfo = new PendingAddItemInfo(); 883 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 884 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 885 info.activityInfo.name); 886 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 887 widget.applyFromResolveInfo(mPackageManager, info, preview, 888 mHolographicOutlineHelper); 889 widget.setTag(createItemInfo); 890 } 891 widget.setOnClickListener(this); 892 widget.setOnLongClickListener(this); 893 widget.setOnTouchListener(this); 894 895 // Layout each widget 896 int ix = i % mWidgetCountX; 897 int iy = i / mWidgetCountX; 898 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 899 new GridLayout.Group(iy, 1, GridLayout.LEFT), 900 new GridLayout.Group(ix, 1, GridLayout.TOP)); 901 lp.width = cellWidth; 902 lp.height = cellHeight; 903 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 904 if (iy > 0) lp.topMargin = mWidgetHeightGap; 905 layout.addView(widget, lp); 906 } 907 908 invalidate(); 909 forceUpdateAdjacentPagesAlpha(); 910 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 911 } 912 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 913 // Invalidate early to short-circuit children invalidates 914 invalidate(); 915 916 int page = data.page; 917 ViewGroup layout = (ViewGroup) getChildAt(page); 918 if (layout instanceof PagedViewCellLayout) { 919 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 920 int count = cl.getPageChildCount(); 921 for (int i = 0; i < count; ++i) { 922 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 923 icon.setHolographicOutline(data.generatedImages.get(i)); 924 } 925 } else { 926 int count = layout.getChildCount(); 927 for (int i = 0; i < count; ++i) { 928 View v = layout.getChildAt(i); 929 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 930 } 931 } 932 } 933 934 @Override 935 public void syncPages() { 936 removeAllViews(); 937 switch (mContentType) { 938 case Applications: 939 syncAppsPages(); 940 break; 941 case Widgets: 942 syncWidgetPages(); 943 break; 944 } 945 } 946 @Override 947 public void syncPageItems(int page) { 948 switch (mContentType) { 949 case Applications: 950 syncAppsPageItems(page); 951 break; 952 case Widgets: 953 syncWidgetPageItems(page); 954 break; 955 } 956 } 957 958 /** 959 * Used by the parent to get the content width to set the tab bar to 960 * @return 961 */ 962 public int getPageContentWidth() { 963 return mContentWidth; 964 } 965 966 @Override 967 protected void onPageBeginMoving() { 968 /* TO BE ENABLED LATER 969 setChildrenDrawnWithCacheEnabled(true); 970 for (int i = 0; i < getChildCount(); ++i) { 971 View v = getChildAt(i); 972 if (v instanceof PagedViewCellLayout) { 973 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(true); 974 } 975 } 976 */ 977 super.onPageBeginMoving(); 978 } 979 980 @Override 981 protected void onPageEndMoving() { 982 /* TO BE ENABLED LATER 983 for (int i = 0; i < getChildCount(); ++i) { 984 View v = getChildAt(i); 985 if (v instanceof PagedViewCellLayout) { 986 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(false); 987 } 988 } 989 setChildrenDrawnWithCacheEnabled(false); 990 */ 991 super.onPageEndMoving(); 992 } 993 994 /* 995 * AllAppsView implementation 996 */ 997 @Override 998 public void setup(Launcher launcher, DragController dragController) { 999 mLauncher = launcher; 1000 mDragController = dragController; 1001 } 1002 @Override 1003 public void zoom(float zoom, boolean animate) { 1004 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1005 } 1006 @Override 1007 public boolean isVisible() { 1008 return (getVisibility() == VISIBLE); 1009 } 1010 @Override 1011 public boolean isAnimating() { 1012 return false; 1013 } 1014 @Override 1015 public void setApps(ArrayList<ApplicationInfo> list) { 1016 mApps = list; 1017 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1018 1019 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 1020 // a layout to do this test and invalidate the page data when ready. 1021 if (testDataReady()) requestLayout(); 1022 } 1023 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1024 // We add it in place, in alphabetical order 1025 int count = list.size(); 1026 for (int i = 0; i < count; ++i) { 1027 ApplicationInfo info = list.get(i); 1028 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1029 if (index < 0) { 1030 mApps.add(-(index + 1), info); 1031 } 1032 } 1033 } 1034 @Override 1035 public void addApps(ArrayList<ApplicationInfo> list) { 1036 addAppsWithoutInvalidate(list); 1037 invalidatePageData(); 1038 } 1039 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1040 ComponentName removeComponent = item.intent.getComponent(); 1041 int length = list.size(); 1042 for (int i = 0; i < length; ++i) { 1043 ApplicationInfo info = list.get(i); 1044 if (info.intent.getComponent().equals(removeComponent)) { 1045 return i; 1046 } 1047 } 1048 return -1; 1049 } 1050 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1051 // loop through all the apps and remove apps that have the same component 1052 int length = list.size(); 1053 for (int i = 0; i < length; ++i) { 1054 ApplicationInfo info = list.get(i); 1055 int removeIndex = findAppByComponent(mApps, info); 1056 if (removeIndex > -1) { 1057 mApps.remove(removeIndex); 1058 } 1059 } 1060 } 1061 @Override 1062 public void removeApps(ArrayList<ApplicationInfo> list) { 1063 removeAppsWithoutInvalidate(list); 1064 invalidatePageData(); 1065 } 1066 @Override 1067 public void updateApps(ArrayList<ApplicationInfo> list) { 1068 // We remove and re-add the updated applications list because it's properties may have 1069 // changed (ie. the title), and this will ensure that the items will be in their proper 1070 // place in the list. 1071 removeAppsWithoutInvalidate(list); 1072 addAppsWithoutInvalidate(list); 1073 invalidatePageData(); 1074 } 1075 @Override 1076 public void reset() { 1077 if (mContentType != ContentType.Applications) { 1078 // Reset to the first page of the Apps pane 1079 AppsCustomizeTabHost tabs = (AppsCustomizeTabHost) 1080 mLauncher.findViewById(R.id.apps_customize_pane); 1081 tabs.setCurrentTabByTag(tabs.getTabTagForContentType(ContentType.Applications)); 1082 } else { 1083 setCurrentPage(0); 1084 invalidatePageData(); 1085 } 1086 } 1087 @Override 1088 public void dumpState() { 1089 // TODO: Dump information related to current list of Applications, Widgets, etc. 1090 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1091 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1092 } 1093 private void dumpAppWidgetProviderInfoList(String tag, String label, 1094 List<Object> list) { 1095 Log.d(tag, label + " size=" + list.size()); 1096 for (Object i: list) { 1097 if (i instanceof AppWidgetProviderInfo) { 1098 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1099 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1100 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1101 + " initialLayout=" + info.initialLayout 1102 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1103 } else if (i instanceof ResolveInfo) { 1104 ResolveInfo info = (ResolveInfo) i; 1105 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1106 + info.icon); 1107 } 1108 } 1109 } 1110 @Override 1111 public void surrender() { 1112 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1113 // should stop this now. 1114 } 1115 1116 @Override 1117 protected int getPageWidthForScrollingIndicator() { 1118 return getPageContentWidth(); 1119 } 1120 1121 /* 1122 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1123 * widget previews in the background with the AsyncTasks. 1124 */ 1125 protected int getAssociatedLowerPageBound(int page) { 1126 return Math.max(0, page - 2); 1127 } 1128 protected int getAssociatedUpperPageBound(int page) { 1129 final int count = getChildCount(); 1130 return Math.min(page + 2, count - 1); 1131 } 1132} 1133