AppsCustomizePagedView.java revision 6a8103c7efcaf6ea6e3170b36bf96dcfc1fa36b3
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher2; 18 19import android.animation.AnimatorSet; 20import android.animation.ObjectAnimator; 21import android.animation.ValueAnimator; 22import android.appwidget.AppWidgetManager; 23import android.appwidget.AppWidgetProviderInfo; 24import android.content.ComponentName; 25import android.content.Context; 26import android.content.Intent; 27import android.content.pm.ActivityInfo; 28import android.content.pm.PackageManager; 29import android.content.pm.ResolveInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.graphics.Bitmap; 34import android.graphics.Bitmap.Config; 35import android.graphics.Canvas; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.RectF; 39import android.graphics.drawable.Drawable; 40import android.os.AsyncTask; 41import android.os.Process; 42import android.util.AttributeSet; 43import android.util.Log; 44import android.view.Gravity; 45import android.view.LayoutInflater; 46import android.view.MotionEvent; 47import android.view.View; 48import android.view.ViewGroup; 49import android.view.animation.AccelerateInterpolator; 50import android.widget.GridLayout; 51import android.widget.ImageView; 52import android.widget.Toast; 53 54import com.android.launcher.R; 55import com.android.launcher2.DropTarget.DragObject; 56 57import java.util.ArrayList; 58import java.util.Collections; 59import java.util.Iterator; 60import java.util.List; 61 62/** 63 * A simple callback interface which also provides the results of the task. 64 */ 65interface AsyncTaskCallback { 66 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 67} 68 69/** 70 * The data needed to perform either of the custom AsyncTasks. 71 */ 72class AsyncTaskPageData { 73 enum Type { 74 LoadWidgetPreviewData, 75 LoadHolographicIconsData 76 } 77 78 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 79 AsyncTaskCallback postR) { 80 page = p; 81 items = l; 82 sourceImages = si; 83 generatedImages = new ArrayList<Bitmap>(); 84 cellWidth = cellHeight = -1; 85 doInBackgroundCallback = bgR; 86 postExecuteCallback = postR; 87 } 88 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, int ccx, AsyncTaskCallback bgR, 89 AsyncTaskCallback postR) { 90 page = p; 91 items = l; 92 generatedImages = new ArrayList<Bitmap>(); 93 cellWidth = cw; 94 cellHeight = ch; 95 cellCountX = ccx; 96 doInBackgroundCallback = bgR; 97 postExecuteCallback = postR; 98 } 99 void cleanup(boolean cancelled) { 100 // Clean up any references to source/generated bitmaps 101 if (sourceImages != null) { 102 if (cancelled) { 103 for (Bitmap b : sourceImages) { 104 b.recycle(); 105 } 106 } 107 sourceImages.clear(); 108 } 109 if (generatedImages != null) { 110 if (cancelled) { 111 for (Bitmap b : generatedImages) { 112 b.recycle(); 113 } 114 } 115 generatedImages.clear(); 116 } 117 } 118 int page; 119 ArrayList<Object> items; 120 ArrayList<Bitmap> sourceImages; 121 ArrayList<Bitmap> generatedImages; 122 int cellWidth; 123 int cellHeight; 124 int cellCountX; 125 AsyncTaskCallback doInBackgroundCallback; 126 AsyncTaskCallback postExecuteCallback; 127} 128 129/** 130 * A generic template for an async task used in AppsCustomize. 131 */ 132class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 133 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 134 page = p; 135 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 136 dataType = ty; 137 } 138 @Override 139 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 140 if (params.length != 1) return null; 141 // Load each of the widget previews in the background 142 params[0].doInBackgroundCallback.run(this, params[0]); 143 return params[0]; 144 } 145 @Override 146 protected void onPostExecute(AsyncTaskPageData result) { 147 // All the widget previews are loaded, so we can just callback to inflate the page 148 result.postExecuteCallback.run(this, result); 149 } 150 151 void setThreadPriority(int p) { 152 threadPriority = p; 153 } 154 void syncThreadPriority() { 155 Process.setThreadPriority(threadPriority); 156 } 157 158 // The page that this async task is associated with 159 AsyncTaskPageData.Type dataType; 160 int page; 161 int threadPriority; 162} 163 164/** 165 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 166 */ 167public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 168 AllAppsView, View.OnClickListener, DragSource { 169 static final String LOG_TAG = "AppsCustomizePagedView"; 170 171 /** 172 * The different content types that this paged view can show. 173 */ 174 public enum ContentType { 175 Applications, 176 Widgets 177 } 178 179 // Refs 180 private Launcher mLauncher; 181 private DragController mDragController; 182 private final LayoutInflater mLayoutInflater; 183 private final PackageManager mPackageManager; 184 185 // Save and Restore 186 private int mSaveInstanceStateItemIndex = -1; 187 188 // Content 189 private ArrayList<ApplicationInfo> mApps; 190 private ArrayList<Object> mWidgets; 191 192 // Cling 193 private int mClingFocusedX; 194 private int mClingFocusedY; 195 196 // Caching 197 private Canvas mCanvas; 198 private Drawable mDefaultWidgetBackground; 199 private IconCache mIconCache; 200 private int mDragViewMultiplyColor; 201 202 // Dimens 203 private int mContentWidth; 204 private int mAppIconSize; 205 private int mWidgetCountX, mWidgetCountY; 206 private int mWidgetWidthGap, mWidgetHeightGap; 207 private final int mWidgetPreviewIconPaddedDimension; 208 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 209 private PagedViewCellLayout mWidgetSpacingLayout; 210 private int mNumAppsPages; 211 private int mNumWidgetPages; 212 213 // Relating to the scroll and overscroll effects 214 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 215 private static float CAMERA_DISTANCE = 6500; 216 private static float TRANSITION_SCALE_FACTOR = 0.74f; 217 private static float TRANSITION_PIVOT = 0.65f; 218 private static float TRANSITION_MAX_ROTATION = 22; 219 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 220 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 221 222 // Previews & outlines 223 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 224 private HolographicOutlineHelper mHolographicOutlineHelper; 225 private static final int sPageSleepDelay = 150; 226 227 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 228 super(context, attrs); 229 mLayoutInflater = LayoutInflater.from(context); 230 mPackageManager = context.getPackageManager(); 231 mApps = new ArrayList<ApplicationInfo>(); 232 mWidgets = new ArrayList<Object>(); 233 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 234 mHolographicOutlineHelper = new HolographicOutlineHelper(); 235 mCanvas = new Canvas(); 236 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 237 238 // Save the default widget preview background 239 Resources resources = context.getResources(); 240 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 241 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 242 mDragViewMultiplyColor = resources.getColor(R.color.drag_view_multiply_color); 243 244 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PagedView, 0, 0); 245 // TODO-APPS_CUSTOMIZE: remove these unnecessary attrs after 246 mCellCountX = a.getInt(R.styleable.PagedView_cellCountX, 6); 247 mCellCountY = a.getInt(R.styleable.PagedView_cellCountY, 4); 248 a.recycle(); 249 a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 250 mWidgetWidthGap = 251 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 252 mWidgetHeightGap = 253 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 254 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 255 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 256 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 257 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 258 a.recycle(); 259 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 260 261 // The padding on the non-matched dimension for the default widget preview icons 262 // (top + bottom) 263 mWidgetPreviewIconPaddedDimension = 264 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 265 mFadeInAdjacentScreens = LauncherApplication.isScreenLarge(); 266 } 267 268 @Override 269 protected void init() { 270 super.init(); 271 mCenterPagesVertically = true; 272 273 Context context = getContext(); 274 Resources r = context.getResources(); 275 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 276 } 277 278 @Override 279 protected void onUnhandledTap(MotionEvent ev) { 280 if (LauncherApplication.isScreenLarge()) { 281 // Dismiss AppsCustomize if we tap 282 mLauncher.showWorkspace(true); 283 } 284 } 285 286 /** Returns the item index of the center item on this page so that we can restore to this 287 * item index when we rotate. */ 288 private int getMiddleComponentIndexOnCurrentPage() { 289 int i = -1; 290 if (getPageCount() > 0) { 291 int currentPage = getCurrentPage(); 292 if (currentPage < mNumAppsPages) { 293 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 294 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 295 int numItemsPerPage = mCellCountX * mCellCountY; 296 int childCount = childrenLayout.getChildCount(); 297 if (childCount > 0) { 298 i = (currentPage * numItemsPerPage) + (childCount / 2); 299 } 300 } else { 301 int numApps = mApps.size(); 302 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 303 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 304 int childCount = layout.getChildCount(); 305 if (childCount > 0) { 306 i = numApps + 307 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 308 } 309 } 310 } 311 return i; 312 } 313 314 /** Get the index of the item to restore to if we need to restore the current page. */ 315 int getSaveInstanceStateIndex() { 316 if (mSaveInstanceStateItemIndex == -1) { 317 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 318 } 319 return mSaveInstanceStateItemIndex; 320 } 321 322 /** Returns the page in the current orientation which is expected to contain the specified 323 * item index. */ 324 int getPageForComponent(int index) { 325 if (index < 0) return 0; 326 327 if (index < mApps.size()) { 328 int numItemsPerPage = mCellCountX * mCellCountY; 329 return (index / numItemsPerPage); 330 } else { 331 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 332 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 333 } 334 } 335 336 /** 337 * This differs from isDataReady as this is the test done if isDataReady is not set. 338 */ 339 private boolean testDataReady() { 340 // We only do this test once, and we default to the Applications page, so we only really 341 // have to wait for there to be apps. 342 // TODO: What if one of them is validly empty 343 return !mApps.isEmpty() && !mWidgets.isEmpty(); 344 } 345 346 /** Restores the page for an item at the specified index */ 347 void restorePageForIndex(int index) { 348 if (index < 0) return; 349 mSaveInstanceStateItemIndex = index; 350 } 351 352 private void updatePageCounts() { 353 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 354 (float) (mWidgetCountX * mWidgetCountY)); 355 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 356 } 357 358 protected void onDataReady(int width, int height) { 359 // Note that we transpose the counts in portrait so that we get a similar layout 360 boolean isLandscape = getResources().getConfiguration().orientation == 361 Configuration.ORIENTATION_LANDSCAPE; 362 int maxCellCountX = Integer.MAX_VALUE; 363 int maxCellCountY = Integer.MAX_VALUE; 364 if (LauncherApplication.isScreenLarge()) { 365 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 366 LauncherModel.getCellCountY()); 367 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 368 LauncherModel.getCellCountX()); 369 } 370 371 // Now that the data is ready, we can calculate the content width, the number of cells to 372 // use for each page 373 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 374 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 375 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 376 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 377 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 378 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 379 updatePageCounts(); 380 381 // Force a measure to update recalculate the gaps 382 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 383 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 384 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 385 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 386 387 // Restore the page 388 int page = getPageForComponent(mSaveInstanceStateItemIndex); 389 invalidatePageData(Math.max(0, page)); 390 391 // Calculate the position for the cling punch through 392 int[] offset = new int[2]; 393 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 394 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 395 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + offset[0]; 396 pos[1] += (getMeasuredHeight() - mWidgetSpacingLayout.getMeasuredHeight()) / 2 + offset[1]; 397 mLauncher.showFirstRunAllAppsCling(pos); 398 399 } 400 401 @Override 402 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 403 int width = MeasureSpec.getSize(widthMeasureSpec); 404 int height = MeasureSpec.getSize(heightMeasureSpec); 405 if (!isDataReady()) { 406 if (testDataReady()) { 407 setDataIsReady(); 408 setMeasuredDimension(width, height); 409 onDataReady(width, height); 410 } 411 } 412 413 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 414 } 415 416 /** Removes and returns the ResolveInfo with the specified ComponentName */ 417 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 418 ComponentName cn) { 419 Iterator<ResolveInfo> iter = list.iterator(); 420 while (iter.hasNext()) { 421 ResolveInfo rinfo = iter.next(); 422 ActivityInfo info = rinfo.activityInfo; 423 ComponentName c = new ComponentName(info.packageName, info.name); 424 if (c.equals(cn)) { 425 iter.remove(); 426 return rinfo; 427 } 428 } 429 return null; 430 } 431 432 public void onPackagesUpdated() { 433 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 434 // by a broadcast receiver, and in order for it to work correctly, we need to know that 435 // the AppWidgetService has already received and processed the same broadcast. Since there 436 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 437 // we should have a more precise way of ensuring the AppWidgetService is up to date. 438 postDelayed(new Runnable() { 439 public void run() { 440 updatePackages(); 441 } 442 }, 500); 443 } 444 445 public void updatePackages() { 446 // Get the list of widgets and shortcuts 447 boolean wasEmpty = mWidgets.isEmpty(); 448 mWidgets.clear(); 449 List<AppWidgetProviderInfo> widgets = 450 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 451 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 452 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 453 mWidgets.addAll(widgets); 454 mWidgets.addAll(shortcuts); 455 Collections.sort(mWidgets, 456 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 457 updatePageCounts(); 458 459 if (wasEmpty) { 460 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 461 // a layout to do this test and invalidate the page data when ready. 462 if (testDataReady()) requestLayout(); 463 } else { 464 cancelAllTasks(); 465 invalidatePageData(); 466 } 467 } 468 469 @Override 470 public void onClick(View v) { 471 // When we have exited all apps or are in transition, disregard clicks 472 if (!mLauncher.isAllAppsCustomizeOpen() || 473 mLauncher.getWorkspace().isSwitchingState()) return; 474 475 if (v instanceof PagedViewIcon) { 476 // Animate some feedback to the click 477 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 478 animateClickFeedback(v, new Runnable() { 479 @Override 480 public void run() { 481 mLauncher.startActivitySafely(appInfo.intent, appInfo); 482 } 483 }); 484 } else if (v instanceof PagedViewWidget) { 485 // Let the user know that they have to long press to add a widget 486 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 487 Toast.LENGTH_SHORT).show(); 488 489 // Create a little animation to show that the widget can move 490 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 491 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 492 AnimatorSet bounce = new AnimatorSet(); 493 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 494 tyuAnim.setDuration(125); 495 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 496 tydAnim.setDuration(100); 497 bounce.play(tyuAnim).before(tydAnim); 498 bounce.setInterpolator(new AccelerateInterpolator()); 499 bounce.start(); 500 } 501 } 502 503 /* 504 * PagedViewWithDraggableItems implementation 505 */ 506 @Override 507 protected void determineDraggingStart(android.view.MotionEvent ev) { 508 // Disable dragging by pulling an app down for now. 509 } 510 511 private void beginDraggingApplication(View v) { 512 mLauncher.getWorkspace().onDragStartedWithItem(v); 513 mLauncher.getWorkspace().beginDragShared(v, this); 514 } 515 516 private void beginDraggingWidget(View v) { 517 // Get the widget preview as the drag representation 518 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 519 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 520 521 // Compose the drag image 522 Bitmap b; 523 Drawable preview = image.getDrawable(); 524 RectF mTmpScaleRect = new RectF(0f,0f,1f,1f); 525 image.getImageMatrix().mapRect(mTmpScaleRect); 526 float scale = mTmpScaleRect.right; 527 int w = (int) (preview.getIntrinsicWidth() * scale); 528 int h = (int) (preview.getIntrinsicHeight() * scale); 529 if (createItemInfo instanceof PendingAddWidgetInfo) { 530 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 531 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 532 createItemInfo.spanX = spanXY[0]; 533 createItemInfo.spanY = spanXY[1]; 534 535 b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 536 renderDrawableToBitmap(preview, b, 0, 0, w, h, scale, mDragViewMultiplyColor); 537 } else { 538 // Workaround for the fact that we don't keep the original ResolveInfo associated with 539 // the shortcut around. To get the icon, we just render the preview image (which has 540 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 541 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 542 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 543 mCanvas.setBitmap(b); 544 mCanvas.save(); 545 preview.draw(mCanvas); 546 mCanvas.restore(); 547 mCanvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 548 mCanvas.setBitmap(null); 549 createItemInfo.spanX = createItemInfo.spanY = 1; 550 } 551 552 // Start the drag 553 mLauncher.lockScreenOrientationOnLargeUI(); 554 mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, 555 createItemInfo.spanY, b); 556 mDragController.startDrag(image, b, this, createItemInfo, 557 DragController.DRAG_ACTION_COPY, null); 558 b.recycle(); 559 } 560 @Override 561 protected boolean beginDragging(View v) { 562 // Dismiss the cling 563 mLauncher.dismissAllAppsCling(null); 564 565 if (!super.beginDragging(v)) return false; 566 567 // Go into spring loaded mode (must happen before we startDrag()) 568 mLauncher.enterSpringLoadedDragMode(); 569 570 if (v instanceof PagedViewIcon) { 571 beginDraggingApplication(v); 572 } else if (v instanceof PagedViewWidget) { 573 beginDraggingWidget(v); 574 } 575 return true; 576 } 577 private void endDragging(View target, boolean success) { 578 mLauncher.getWorkspace().onDragStopped(success); 579 if (!success || (target != mLauncher.getWorkspace() && 580 !(target instanceof DeleteDropTarget))) { 581 // Exit spring loaded mode if we have not successfully dropped or have not handled the 582 // drop in Workspace 583 mLauncher.exitSpringLoadedDragMode(); 584 } 585 mLauncher.unlockScreenOrientationOnLargeUI(); 586 587 } 588 589 @Override 590 public void onDropCompleted(View target, DragObject d, boolean success) { 591 endDragging(target, success); 592 593 // Display an error message if the drag failed due to there not being enough space on the 594 // target layout we were dropping on. 595 if (!success) { 596 boolean showOutOfSpaceMessage = false; 597 if (target instanceof Workspace) { 598 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 599 Workspace workspace = (Workspace) target; 600 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 601 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 602 if (layout != null) { 603 layout.calculateSpans(itemInfo); 604 showOutOfSpaceMessage = 605 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 606 } 607 } 608 if (showOutOfSpaceMessage) { 609 mLauncher.showOutOfSpaceMessage(); 610 } 611 } 612 } 613 614 @Override 615 protected void onDetachedFromWindow() { 616 super.onDetachedFromWindow(); 617 cancelAllTasks(); 618 } 619 620 private void cancelAllTasks() { 621 // Clean up all the async tasks 622 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 623 while (iter.hasNext()) { 624 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 625 task.cancel(false); 626 iter.remove(); 627 } 628 } 629 630 public void setContentType(ContentType type) { 631 if (type == ContentType.Widgets) { 632 invalidatePageData(mNumAppsPages, true); 633 } else if (type == ContentType.Applications) { 634 invalidatePageData(0, true); 635 } 636 } 637 638 protected void snapToPage(int whichPage, int delta, int duration) { 639 super.snapToPage(whichPage, delta, duration); 640 updateCurrentTab(whichPage); 641 } 642 643 private void updateCurrentTab(int currentPage) { 644 AppsCustomizeTabHost tabHost = getTabHost(); 645 String tag = tabHost.getCurrentTabTag(); 646 if (tag != null) { 647 if (currentPage >= mNumAppsPages && 648 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 649 tabHost.setCurrentTabFromContent(ContentType.Widgets); 650 } else if (currentPage < mNumAppsPages && 651 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 652 tabHost.setCurrentTabFromContent(ContentType.Applications); 653 } 654 } 655 } 656 657 /* 658 * Apps PagedView implementation 659 */ 660 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 661 int childCount = layout.getChildCount(); 662 for (int i = 0; i < childCount; ++i) { 663 layout.getChildAt(i).setVisibility(visibility); 664 } 665 } 666 private void setupPage(PagedViewCellLayout layout) { 667 layout.setCellCount(mCellCountX, mCellCountY); 668 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 669 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 670 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 671 672 // Note: We force a measure here to get around the fact that when we do layout calculations 673 // immediately after syncing, we don't have a proper width. That said, we already know the 674 // expected page width, so we can actually optimize by hiding all the TextView-based 675 // children that are expensive to measure, and let that happen naturally later. 676 setVisibilityOnChildren(layout, View.GONE); 677 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 678 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 679 layout.setMinimumWidth(getPageContentWidth()); 680 layout.measure(widthSpec, heightSpec); 681 setVisibilityOnChildren(layout, View.VISIBLE); 682 } 683 684 public void syncAppsPageItems(int page, boolean immediate) { 685 // ensure that we have the right number of items on the pages 686 int numCells = mCellCountX * mCellCountY; 687 int startIndex = page * numCells; 688 int endIndex = Math.min(startIndex + numCells, mApps.size()); 689 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 690 691 layout.removeAllViewsOnPage(); 692 ArrayList<Object> items = new ArrayList<Object>(); 693 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 694 for (int i = startIndex; i < endIndex; ++i) { 695 ApplicationInfo info = mApps.get(i); 696 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 697 R.layout.apps_customize_application, layout, false); 698 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 699 icon.setOnClickListener(this); 700 icon.setOnLongClickListener(this); 701 icon.setOnTouchListener(this); 702 703 int index = i - startIndex; 704 int x = index % mCellCountX; 705 int y = index / mCellCountX; 706 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 707 708 items.add(info); 709 images.add(info.iconBitmap); 710 } 711 712 layout.createHardwareLayers(); 713 714 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 715 if (mFadeInAdjacentScreens) { 716 prepareGenerateHoloOutlinesTask(page, items, images); 717 } 718 */ 719 } 720 721 /** 722 * Return the appropriate thread priority for loading for a given page (we give the current 723 * page much higher priority) 724 */ 725 private int getThreadPriorityForPage(int page) { 726 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 727 int pageDiff = Math.abs(page - mCurrentPage); 728 if (pageDiff <= 0) { 729 // return Process.THREAD_PRIORITY_DEFAULT; 730 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 731 } else if (pageDiff <= 1) { 732 // return Process.THREAD_PRIORITY_BACKGROUND; 733 return Process.THREAD_PRIORITY_DEFAULT; 734 } else { 735 // return Process.THREAD_PRIORITY_LOWEST; 736 return Process.THREAD_PRIORITY_DEFAULT; 737 } 738 } 739 private int getSleepForPage(int page) { 740 int pageDiff = Math.abs(page - mCurrentPage) - 1; 741 return Math.max(0, pageDiff * sPageSleepDelay); 742 } 743 /** 744 * Creates and executes a new AsyncTask to load a page of widget previews. 745 */ 746 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 747 int cellWidth, int cellHeight, int cellCountX) { 748 // Prune all tasks that are no longer needed 749 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 750 while (iter.hasNext()) { 751 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 752 int taskPage = task.page; 753 if ((taskPage == page) || 754 taskPage < getAssociatedLowerPageBound(mCurrentPage - mNumAppsPages) || 755 taskPage > getAssociatedUpperPageBound(mCurrentPage - mNumAppsPages)) { 756 task.cancel(false); 757 iter.remove(); 758 } else { 759 task.setThreadPriority(getThreadPriorityForPage(taskPage + mNumAppsPages)); 760 } 761 } 762 763 // We introduce a slight delay to order the loading of side pages so that we don't thrash 764 final int sleepMs = getSleepForPage(page + mNumAppsPages); 765 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 766 cellCountX, new AsyncTaskCallback() { 767 @Override 768 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 769 try { 770 try { 771 Thread.sleep(sleepMs); 772 } catch (Exception e) {} 773 loadWidgetPreviewsInBackground(task, data); 774 } finally { 775 if (task.isCancelled()) { 776 data.cleanup(true); 777 } 778 } 779 } 780 }, 781 new AsyncTaskCallback() { 782 @Override 783 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 784 try { 785 mRunningTasks.remove(task); 786 if (task.isCancelled()) return; 787 onSyncWidgetPageItems(data); 788 } finally { 789 data.cleanup(task.isCancelled()); 790 } 791 } 792 }); 793 794 // Ensure that the task is appropriately prioritized and runs in parallel 795 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 796 AsyncTaskPageData.Type.LoadWidgetPreviewData); 797 t.setThreadPriority(getThreadPriorityForPage(page)); 798 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 799 mRunningTasks.add(t); 800 } 801 /** 802 * Creates and executes a new AsyncTask to load the outlines for a page of content. 803 */ 804 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 805 ArrayList<Bitmap> images) { 806 // Prune old tasks for this page 807 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 808 while (iter.hasNext()) { 809 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 810 int taskPage = task.page; 811 if ((taskPage == page) && 812 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 813 task.cancel(false); 814 iter.remove(); 815 } 816 } 817 818 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 819 new AsyncTaskCallback() { 820 @Override 821 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 822 try { 823 // Ensure that this task starts running at the correct priority 824 task.syncThreadPriority(); 825 826 ArrayList<Bitmap> images = data.generatedImages; 827 ArrayList<Bitmap> srcImages = data.sourceImages; 828 int count = srcImages.size(); 829 Canvas c = new Canvas(); 830 for (int i = 0; i < count && !task.isCancelled(); ++i) { 831 // Before work on each item, ensure that this task is running at the correct 832 // priority 833 task.syncThreadPriority(); 834 835 Bitmap b = srcImages.get(i); 836 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 837 Bitmap.Config.ARGB_8888); 838 839 c.setBitmap(outline); 840 c.save(); 841 c.drawBitmap(b, 0, 0, null); 842 c.restore(); 843 c.setBitmap(null); 844 845 images.add(outline); 846 } 847 } finally { 848 if (task.isCancelled()) { 849 data.cleanup(true); 850 } 851 } 852 } 853 }, 854 new AsyncTaskCallback() { 855 @Override 856 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 857 try { 858 mRunningTasks.remove(task); 859 if (task.isCancelled()) return; 860 onHolographicPageItemsLoaded(data); 861 } finally { 862 data.cleanup(task.isCancelled()); 863 } 864 } 865 }); 866 867 // Ensure that the outline task always runs in the background, serially 868 AppsCustomizeAsyncTask t = 869 new AppsCustomizeAsyncTask(page, AsyncTaskPageData.Type.LoadHolographicIconsData); 870 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 871 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 872 mRunningTasks.add(t); 873 } 874 875 /* 876 * Widgets PagedView implementation 877 */ 878 private void setupPage(PagedViewGridLayout layout) { 879 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 880 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 881 882 // Note: We force a measure here to get around the fact that when we do layout calculations 883 // immediately after syncing, we don't have a proper width. 884 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 885 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 886 layout.setMinimumWidth(getPageContentWidth()); 887 layout.measure(widthSpec, heightSpec); 888 } 889 890 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 891 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 892 } 893 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 894 float scale) { 895 renderDrawableToBitmap(d, bitmap, x, y, w, h, scale, 0xFFFFFFFF); 896 } 897 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 898 float scale, int multiplyColor) { 899 if (bitmap != null) { 900 Canvas c = new Canvas(bitmap); 901 c.scale(scale, scale); 902 Rect oldBounds = d.copyBounds(); 903 d.setBounds(x, y, x + w, y + h); 904 d.draw(c); 905 d.setBounds(oldBounds); // Restore the bounds 906 if (multiplyColor != 0xFFFFFFFF) { 907 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 908 } 909 c.setBitmap(null); 910 } 911 } 912 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 913 // Render the background 914 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 915 int bitmapSize = mAppIconSize + 2 * offset; 916 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 917 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapSize, bitmapSize); 918 919 // Render the icon 920 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 921 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 922 return preview; 923 } 924 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 925 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 926 927 // Load the preview image if possible 928 String packageName = info.provider.getPackageName(); 929 Drawable drawable = null; 930 Bitmap preview = null; 931 if (info.previewImage != 0) { 932 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 933 if (drawable == null) { 934 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 935 + " for provider: " + info.provider); 936 } else { 937 // Scale down the preview to something that is closer to the cellWidth/Height 938 int imageWidth = drawable.getIntrinsicWidth(); 939 int imageHeight = drawable.getIntrinsicHeight(); 940 int bitmapWidth = imageWidth; 941 int bitmapHeight = imageHeight; 942 if (imageWidth > imageHeight) { 943 bitmapWidth = cellWidth; 944 bitmapHeight = (int) (imageHeight * ((float) bitmapWidth / imageWidth)); 945 } else { 946 bitmapHeight = cellHeight; 947 bitmapWidth = (int) (imageWidth * ((float) bitmapHeight / imageHeight)); 948 } 949 950 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 951 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 952 } 953 } 954 955 // Generate a preview image if we couldn't load one 956 if (drawable == null) { 957 Resources resources = mLauncher.getResources(); 958 // TODO: This actually uses the apps customize cell layout params, where as we make want 959 // the Workspace params for more accuracy. 960 int targetWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 961 int targetHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 962 int bitmapWidth = targetWidth; 963 int bitmapHeight = targetHeight; 964 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 965 float iconScale = 1f; 966 967 // Determine the size of the bitmap we want to draw 968 if (cellHSpan == cellVSpan) { 969 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 970 if (cellHSpan <= 1) { 971 bitmapWidth = bitmapHeight = mAppIconSize + 2 * offset; 972 } else { 973 bitmapWidth = bitmapHeight = mAppIconSize + 4 * offset; 974 } 975 } else { 976 // Otherwise, ensure that we are properly sized within the cellWidth/Height 977 if (targetWidth > targetHeight) { 978 bitmapWidth = Math.min(targetWidth, cellWidth); 979 bitmapHeight = (int) (targetHeight * ((float) bitmapWidth / targetWidth)); 980 iconScale = Math.min((float) bitmapHeight / (mAppIconSize + 2 * offset), 1f); 981 } else { 982 bitmapHeight = Math.min(targetHeight, cellHeight); 983 bitmapWidth = (int) (targetWidth * ((float) bitmapHeight / targetHeight)); 984 iconScale = Math.min((float) bitmapWidth / (mAppIconSize + 2 * offset), 1f); 985 } 986 } 987 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 988 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 989 bitmapWidth); 990 991 // Draw the icon in the top left corner 992 try { 993 Drawable icon = null; 994 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 995 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 996 997 renderDrawableToBitmap(icon, preview, (int) (offset * iconScale), 998 (int) (offset * iconScale), (int) (mAppIconSize * iconScale), 999 (int) (mAppIconSize * iconScale)); 1000 } catch (Resources.NotFoundException e) {} 1001 } 1002 return preview; 1003 } 1004 1005 public void syncWidgetPageItems(int page, boolean immediate) { 1006 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1007 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1008 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1009 1010 // Calculate the dimensions of each cell we are giving to each widget 1011 ArrayList<Object> items = new ArrayList<Object>(); 1012 int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1013 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1014 int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1015 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1016 1017 // Prepare the set of widgets to load previews for in the background 1018 int offset = page * numItemsPerPage; 1019 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1020 items.add(mWidgets.get(i)); 1021 } 1022 1023 // Prepopulate the pages with the other widget info, and fill in the previews later 1024 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1025 layout.setColumnCount(layout.getCellCountX()); 1026 for (int i = 0; i < items.size(); ++i) { 1027 Object rawInfo = items.get(i); 1028 PendingAddItemInfo createItemInfo = null; 1029 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1030 R.layout.apps_customize_widget, layout, false); 1031 if (rawInfo instanceof AppWidgetProviderInfo) { 1032 // Fill in the widget information 1033 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1034 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1035 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1036 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans, 1037 mHolographicOutlineHelper); 1038 widget.setTag(createItemInfo); 1039 } else if (rawInfo instanceof ResolveInfo) { 1040 // Fill in the shortcuts information 1041 ResolveInfo info = (ResolveInfo) rawInfo; 1042 createItemInfo = new PendingAddItemInfo(); 1043 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1044 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1045 info.activityInfo.name); 1046 widget.applyFromResolveInfo(mPackageManager, info, mHolographicOutlineHelper); 1047 widget.setTag(createItemInfo); 1048 } 1049 widget.setOnClickListener(this); 1050 widget.setOnLongClickListener(this); 1051 widget.setOnTouchListener(this); 1052 1053 // Layout each widget 1054 int ix = i % mWidgetCountX; 1055 int iy = i / mWidgetCountX; 1056 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1057 GridLayout.spec(iy, GridLayout.LEFT), 1058 GridLayout.spec(ix, GridLayout.TOP)); 1059 lp.width = cellWidth; 1060 lp.height = cellHeight; 1061 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1062 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1063 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1064 layout.addView(widget, lp); 1065 } 1066 1067 // Load the widget previews 1068 if (immediate) { 1069 AsyncTaskPageData data = new AsyncTaskPageData(page, items, cellWidth, cellHeight, 1070 mWidgetCountX, null, null); 1071 loadWidgetPreviewsInBackground(null, data); 1072 onSyncWidgetPageItems(data); 1073 } else { 1074 prepareLoadWidgetPreviewsTask(page, items, cellWidth, cellHeight, mWidgetCountX); 1075 } 1076 } 1077 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1078 AsyncTaskPageData data) { 1079 if (task != null) { 1080 // Ensure that this task starts running at the correct priority 1081 task.syncThreadPriority(); 1082 } 1083 1084 // Load each of the widget/shortcut previews 1085 ArrayList<Object> items = data.items; 1086 ArrayList<Bitmap> images = data.generatedImages; 1087 int count = items.size(); 1088 int cellWidth = data.cellWidth; 1089 int cellHeight = data.cellHeight; 1090 for (int i = 0; i < count; ++i) { 1091 if (task != null) { 1092 // Ensure we haven't been cancelled yet 1093 if (task.isCancelled()) break; 1094 // Before work on each item, ensure that this task is running at the correct 1095 // priority 1096 task.syncThreadPriority(); 1097 } 1098 1099 Object rawInfo = items.get(i); 1100 if (rawInfo instanceof AppWidgetProviderInfo) { 1101 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1102 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1103 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 1104 cellWidth, cellHeight)); 1105 } else if (rawInfo instanceof ResolveInfo) { 1106 // Fill in the shortcuts information 1107 ResolveInfo info = (ResolveInfo) rawInfo; 1108 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 1109 } 1110 } 1111 } 1112 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1113 int page = data.page; 1114 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1115 1116 ArrayList<Object> items = data.items; 1117 int count = items.size(); 1118 for (int i = 0; i < count; ++i) { 1119 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1120 if (widget != null) { 1121 Bitmap preview = data.generatedImages.get(i); 1122 boolean scale = 1123 (preview.getWidth() >= data.cellWidth || 1124 preview.getHeight() >= data.cellHeight); 1125 1126 widget.applyPreview(new FastBitmapDrawable(preview), i, scale); 1127 } 1128 } 1129 layout.createHardwareLayer(); 1130 1131 invalidate(); 1132 forceUpdateAdjacentPagesAlpha(); 1133 1134 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 1135 if (mFadeInAdjacentScreens) { 1136 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 1137 } 1138 */ 1139 } 1140 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 1141 // Invalidate early to short-circuit children invalidates 1142 invalidate(); 1143 1144 int page = data.page; 1145 ViewGroup layout = (ViewGroup) getPageAt(page); 1146 if (layout instanceof PagedViewCellLayout) { 1147 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 1148 int count = cl.getPageChildCount(); 1149 if (count != data.generatedImages.size()) return; 1150 for (int i = 0; i < count; ++i) { 1151 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 1152 icon.setHolographicOutline(data.generatedImages.get(i)); 1153 } 1154 } else { 1155 int count = layout.getChildCount(); 1156 if (count != data.generatedImages.size()) return; 1157 for (int i = 0; i < count; ++i) { 1158 View v = layout.getChildAt(i); 1159 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 1160 } 1161 } 1162 } 1163 1164 @Override 1165 public void syncPages() { 1166 removeAllViews(); 1167 cancelAllTasks(); 1168 1169 Context context = getContext(); 1170 for (int j = 0; j < mNumWidgetPages; ++j) { 1171 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1172 mWidgetCountY); 1173 setupPage(layout); 1174 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1175 LayoutParams.MATCH_PARENT)); 1176 } 1177 1178 for (int i = 0; i < mNumAppsPages; ++i) { 1179 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1180 setupPage(layout); 1181 addView(layout); 1182 } 1183 } 1184 1185 @Override 1186 public void syncPageItems(int page, boolean immediate) { 1187 if (page < mNumAppsPages) { 1188 syncAppsPageItems(page, immediate); 1189 } else { 1190 syncWidgetPageItems(page - mNumAppsPages, immediate); 1191 } 1192 } 1193 1194 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1195 // it is in the z-order. This is important to insure touch events are handled correctly. 1196 View getPageAt(int index) { 1197 return getChildAt(getChildCount() - index - 1); 1198 } 1199 1200 @Override 1201 protected int indexToPage(int index) { 1202 return getChildCount() - index - 1; 1203 } 1204 1205 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1206 @Override 1207 protected void screenScrolled(int screenCenter) { 1208 super.screenScrolled(screenCenter); 1209 1210 for (int i = 0; i < getChildCount(); i++) { 1211 View v = getPageAt(i); 1212 if (v != null) { 1213 float scrollProgress = getScrollProgress(screenCenter, v, i); 1214 1215 float interpolatedProgress = 1216 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1217 float scale = (1 - interpolatedProgress) + 1218 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1219 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1220 1221 float alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1222 1 - Math.abs(scrollProgress)) : 1.0f; 1223 1224 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1225 int pageWidth = v.getMeasuredWidth(); 1226 int pageHeight = v.getMeasuredHeight(); 1227 1228 if (PERFORM_OVERSCROLL_ROTATION) { 1229 if (i == 0 && scrollProgress < 0) { 1230 // Overscroll to the left 1231 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1232 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1233 scale = 1.0f; 1234 alpha = 1.0f; 1235 // On the first page, we don't want the page to have any lateral motion 1236 translationX = getScrollX(); 1237 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1238 // Overscroll to the right 1239 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1240 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1241 scale = 1.0f; 1242 alpha = 1.0f; 1243 // On the last page, we don't want the page to have any lateral motion. 1244 translationX = getScrollX() - mMaxScrollX; 1245 } else { 1246 v.setPivotY(pageHeight / 2.0f); 1247 v.setPivotX(pageWidth / 2.0f); 1248 v.setRotationY(0f); 1249 } 1250 } 1251 1252 v.setTranslationX(translationX); 1253 v.setScaleX(scale); 1254 v.setScaleY(scale); 1255 v.setAlpha(alpha); 1256 } 1257 } 1258 } 1259 1260 protected void overScroll(float amount) { 1261 acceleratedOverScroll(amount); 1262 } 1263 1264 /** 1265 * Used by the parent to get the content width to set the tab bar to 1266 * @return 1267 */ 1268 public int getPageContentWidth() { 1269 return mContentWidth; 1270 } 1271 1272 @Override 1273 protected void onPageEndMoving() { 1274 super.onPageEndMoving(); 1275 1276 // We reset the save index when we change pages so that it will be recalculated on next 1277 // rotation 1278 mSaveInstanceStateItemIndex = -1; 1279 } 1280 1281 /* 1282 * AllAppsView implementation 1283 */ 1284 @Override 1285 public void setup(Launcher launcher, DragController dragController) { 1286 mLauncher = launcher; 1287 mDragController = dragController; 1288 } 1289 @Override 1290 public void zoom(float zoom, boolean animate) { 1291 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1292 } 1293 @Override 1294 public boolean isVisible() { 1295 return (getVisibility() == VISIBLE); 1296 } 1297 @Override 1298 public boolean isAnimating() { 1299 return false; 1300 } 1301 @Override 1302 public void setApps(ArrayList<ApplicationInfo> list) { 1303 mApps = list; 1304 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1305 updatePageCounts(); 1306 1307 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1308 // request a layout to do this test and invalidate the page data when ready. 1309 if (testDataReady()) requestLayout(); 1310 } 1311 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1312 // We add it in place, in alphabetical order 1313 int count = list.size(); 1314 for (int i = 0; i < count; ++i) { 1315 ApplicationInfo info = list.get(i); 1316 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1317 if (index < 0) { 1318 mApps.add(-(index + 1), info); 1319 } 1320 } 1321 } 1322 @Override 1323 public void addApps(ArrayList<ApplicationInfo> list) { 1324 addAppsWithoutInvalidate(list); 1325 updatePageCounts(); 1326 invalidatePageData(); 1327 } 1328 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1329 ComponentName removeComponent = item.intent.getComponent(); 1330 int length = list.size(); 1331 for (int i = 0; i < length; ++i) { 1332 ApplicationInfo info = list.get(i); 1333 if (info.intent.getComponent().equals(removeComponent)) { 1334 return i; 1335 } 1336 } 1337 return -1; 1338 } 1339 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1340 // loop through all the apps and remove apps that have the same component 1341 int length = list.size(); 1342 for (int i = 0; i < length; ++i) { 1343 ApplicationInfo info = list.get(i); 1344 int removeIndex = findAppByComponent(mApps, info); 1345 if (removeIndex > -1) { 1346 mApps.remove(removeIndex); 1347 } 1348 } 1349 } 1350 @Override 1351 public void removeApps(ArrayList<ApplicationInfo> list) { 1352 removeAppsWithoutInvalidate(list); 1353 updatePageCounts(); 1354 invalidatePageData(); 1355 } 1356 @Override 1357 public void updateApps(ArrayList<ApplicationInfo> list) { 1358 // We remove and re-add the updated applications list because it's properties may have 1359 // changed (ie. the title), and this will ensure that the items will be in their proper 1360 // place in the list. 1361 removeAppsWithoutInvalidate(list); 1362 addAppsWithoutInvalidate(list); 1363 updatePageCounts(); 1364 1365 invalidatePageData(); 1366 } 1367 1368 @Override 1369 public void reset() { 1370 AppsCustomizeTabHost tabHost = getTabHost(); 1371 String tag = tabHost.getCurrentTabTag(); 1372 if (tag != null) { 1373 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1374 tabHost.setCurrentTabFromContent(ContentType.Applications); 1375 } 1376 } 1377 if (mCurrentPage != 0) { 1378 invalidatePageData(0); 1379 } 1380 } 1381 1382 private AppsCustomizeTabHost getTabHost() { 1383 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1384 } 1385 1386 @Override 1387 public void dumpState() { 1388 // TODO: Dump information related to current list of Applications, Widgets, etc. 1389 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1390 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1391 } 1392 private void dumpAppWidgetProviderInfoList(String tag, String label, 1393 ArrayList<Object> list) { 1394 Log.d(tag, label + " size=" + list.size()); 1395 for (Object i: list) { 1396 if (i instanceof AppWidgetProviderInfo) { 1397 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1398 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1399 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1400 + " initialLayout=" + info.initialLayout 1401 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1402 } else if (i instanceof ResolveInfo) { 1403 ResolveInfo info = (ResolveInfo) i; 1404 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1405 + info.icon); 1406 } 1407 } 1408 } 1409 @Override 1410 public void surrender() { 1411 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1412 // should stop this now. 1413 1414 // Stop all background tasks 1415 cancelAllTasks(); 1416 } 1417 1418 /* 1419 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1420 * widget previews in the background with the AsyncTasks. 1421 */ 1422 protected int getAssociatedLowerPageBound(int page) { 1423 return Math.max(0, page - 2); 1424 } 1425 protected int getAssociatedUpperPageBound(int page) { 1426 final int count = getChildCount(); 1427 return Math.min(page + 2, count - 1); 1428 } 1429 1430 @Override 1431 protected String getCurrentPageDescription() { 1432 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1433 int stringId = R.string.default_scroll_format; 1434 int count = 0; 1435 1436 if (page < mNumAppsPages) { 1437 stringId = R.string.apps_customize_apps_scroll_format; 1438 count = mNumAppsPages; 1439 } else { 1440 page -= mNumAppsPages; 1441 stringId = R.string.apps_customize_widgets_scroll_format; 1442 count = mNumWidgetPages; 1443 } 1444 1445 return String.format(mContext.getString(stringId), page + 1, count); 1446 } 1447} 1448