AppsCustomizePagedView.java revision dd3a3d9cf94b80c356ca1d9ca62a3b90e0d56c5c
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 (currentPage >= mNumAppsPages && 647 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 648 tabHost.setCurrentTabFromContent(ContentType.Widgets); 649 } else if (currentPage < mNumAppsPages && 650 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 651 tabHost.setCurrentTabFromContent(ContentType.Applications); 652 } 653 } 654 655 /* 656 * Apps PagedView implementation 657 */ 658 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 659 int childCount = layout.getChildCount(); 660 for (int i = 0; i < childCount; ++i) { 661 layout.getChildAt(i).setVisibility(visibility); 662 } 663 } 664 private void setupPage(PagedViewCellLayout layout) { 665 layout.setCellCount(mCellCountX, mCellCountY); 666 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 667 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 668 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 669 670 // Note: We force a measure here to get around the fact that when we do layout calculations 671 // immediately after syncing, we don't have a proper width. That said, we already know the 672 // expected page width, so we can actually optimize by hiding all the TextView-based 673 // children that are expensive to measure, and let that happen naturally later. 674 setVisibilityOnChildren(layout, View.GONE); 675 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 676 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 677 layout.setMinimumWidth(getPageContentWidth()); 678 layout.measure(widthSpec, heightSpec); 679 setVisibilityOnChildren(layout, View.VISIBLE); 680 } 681 682 public void syncAppsPageItems(int page, boolean immediate) { 683 // ensure that we have the right number of items on the pages 684 int numCells = mCellCountX * mCellCountY; 685 int startIndex = page * numCells; 686 int endIndex = Math.min(startIndex + numCells, mApps.size()); 687 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 688 689 layout.removeAllViewsOnPage(); 690 ArrayList<Object> items = new ArrayList<Object>(); 691 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 692 for (int i = startIndex; i < endIndex; ++i) { 693 ApplicationInfo info = mApps.get(i); 694 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 695 R.layout.apps_customize_application, layout, false); 696 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 697 icon.setOnClickListener(this); 698 icon.setOnLongClickListener(this); 699 icon.setOnTouchListener(this); 700 701 int index = i - startIndex; 702 int x = index % mCellCountX; 703 int y = index / mCellCountX; 704 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 705 706 items.add(info); 707 images.add(info.iconBitmap); 708 } 709 710 layout.createHardwareLayers(); 711 712 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 713 if (mFadeInAdjacentScreens) { 714 prepareGenerateHoloOutlinesTask(page, items, images); 715 } 716 */ 717 } 718 719 /** 720 * Return the appropriate thread priority for loading for a given page (we give the current 721 * page much higher priority) 722 */ 723 private int getThreadPriorityForPage(int page) { 724 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 725 int pageDiff = Math.abs(page - mCurrentPage); 726 if (pageDiff <= 0) { 727 // return Process.THREAD_PRIORITY_DEFAULT; 728 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 729 } else if (pageDiff <= 1) { 730 // return Process.THREAD_PRIORITY_BACKGROUND; 731 return Process.THREAD_PRIORITY_DEFAULT; 732 } else { 733 // return Process.THREAD_PRIORITY_LOWEST; 734 return Process.THREAD_PRIORITY_DEFAULT; 735 } 736 } 737 private int getSleepForPage(int page) { 738 int pageDiff = Math.abs(page - mCurrentPage) - 1; 739 return Math.max(0, pageDiff * sPageSleepDelay); 740 } 741 /** 742 * Creates and executes a new AsyncTask to load a page of widget previews. 743 */ 744 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 745 int cellWidth, int cellHeight, int cellCountX) { 746 // Prune all tasks that are no longer needed 747 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 748 while (iter.hasNext()) { 749 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 750 int taskPage = task.page; 751 if ((taskPage == page) || 752 taskPage < getAssociatedLowerPageBound(mCurrentPage - mNumAppsPages) || 753 taskPage > getAssociatedUpperPageBound(mCurrentPage - mNumAppsPages)) { 754 task.cancel(false); 755 iter.remove(); 756 } else { 757 task.setThreadPriority(getThreadPriorityForPage(taskPage + mNumAppsPages)); 758 } 759 } 760 761 // We introduce a slight delay to order the loading of side pages so that we don't thrash 762 final int sleepMs = getSleepForPage(page + mNumAppsPages); 763 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 764 cellCountX, new AsyncTaskCallback() { 765 @Override 766 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 767 try { 768 try { 769 Thread.sleep(sleepMs); 770 } catch (Exception e) {} 771 loadWidgetPreviewsInBackground(task, data); 772 } finally { 773 if (task.isCancelled()) { 774 data.cleanup(true); 775 } 776 } 777 } 778 }, 779 new AsyncTaskCallback() { 780 @Override 781 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 782 try { 783 mRunningTasks.remove(task); 784 if (task.isCancelled()) return; 785 onSyncWidgetPageItems(data); 786 } finally { 787 data.cleanup(task.isCancelled()); 788 } 789 } 790 }); 791 792 // Ensure that the task is appropriately prioritized and runs in parallel 793 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 794 AsyncTaskPageData.Type.LoadWidgetPreviewData); 795 t.setThreadPriority(getThreadPriorityForPage(page)); 796 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 797 mRunningTasks.add(t); 798 } 799 /** 800 * Creates and executes a new AsyncTask to load the outlines for a page of content. 801 */ 802 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 803 ArrayList<Bitmap> images) { 804 // Prune old tasks for this page 805 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 806 while (iter.hasNext()) { 807 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 808 int taskPage = task.page; 809 if ((taskPage == page) && 810 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 811 task.cancel(false); 812 iter.remove(); 813 } 814 } 815 816 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 817 new AsyncTaskCallback() { 818 @Override 819 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 820 try { 821 // Ensure that this task starts running at the correct priority 822 task.syncThreadPriority(); 823 824 ArrayList<Bitmap> images = data.generatedImages; 825 ArrayList<Bitmap> srcImages = data.sourceImages; 826 int count = srcImages.size(); 827 Canvas c = new Canvas(); 828 for (int i = 0; i < count && !task.isCancelled(); ++i) { 829 // Before work on each item, ensure that this task is running at the correct 830 // priority 831 task.syncThreadPriority(); 832 833 Bitmap b = srcImages.get(i); 834 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 835 Bitmap.Config.ARGB_8888); 836 837 c.setBitmap(outline); 838 c.save(); 839 c.drawBitmap(b, 0, 0, null); 840 c.restore(); 841 c.setBitmap(null); 842 843 images.add(outline); 844 } 845 } finally { 846 if (task.isCancelled()) { 847 data.cleanup(true); 848 } 849 } 850 } 851 }, 852 new AsyncTaskCallback() { 853 @Override 854 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 855 try { 856 mRunningTasks.remove(task); 857 if (task.isCancelled()) return; 858 onHolographicPageItemsLoaded(data); 859 } finally { 860 data.cleanup(task.isCancelled()); 861 } 862 } 863 }); 864 865 // Ensure that the outline task always runs in the background, serially 866 AppsCustomizeAsyncTask t = 867 new AppsCustomizeAsyncTask(page, AsyncTaskPageData.Type.LoadHolographicIconsData); 868 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 869 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 870 mRunningTasks.add(t); 871 } 872 873 /* 874 * Widgets PagedView implementation 875 */ 876 private void setupPage(PagedViewGridLayout layout) { 877 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 878 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 879 880 // Note: We force a measure here to get around the fact that when we do layout calculations 881 // immediately after syncing, we don't have a proper width. 882 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 883 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 884 layout.setMinimumWidth(getPageContentWidth()); 885 layout.measure(widthSpec, heightSpec); 886 } 887 888 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 889 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 890 } 891 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 892 float scale) { 893 renderDrawableToBitmap(d, bitmap, x, y, w, h, scale, 0xFFFFFFFF); 894 } 895 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 896 float scale, int multiplyColor) { 897 if (bitmap != null) { 898 Canvas c = new Canvas(bitmap); 899 c.scale(scale, scale); 900 Rect oldBounds = d.copyBounds(); 901 d.setBounds(x, y, x + w, y + h); 902 d.draw(c); 903 d.setBounds(oldBounds); // Restore the bounds 904 if (multiplyColor != 0xFFFFFFFF) { 905 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 906 } 907 c.setBitmap(null); 908 } 909 } 910 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 911 // Render the background 912 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 913 int bitmapSize = mAppIconSize + 2 * offset; 914 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 915 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapSize, bitmapSize); 916 917 // Render the icon 918 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 919 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 920 return preview; 921 } 922 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 923 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 924 925 // Load the preview image if possible 926 String packageName = info.provider.getPackageName(); 927 Drawable drawable = null; 928 Bitmap preview = null; 929 if (info.previewImage != 0) { 930 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 931 if (drawable == null) { 932 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 933 + " for provider: " + info.provider); 934 } else { 935 // Scale down the preview to something that is closer to the cellWidth/Height 936 int imageWidth = drawable.getIntrinsicWidth(); 937 int imageHeight = drawable.getIntrinsicHeight(); 938 int bitmapWidth = imageWidth; 939 int bitmapHeight = imageHeight; 940 if (imageWidth > imageHeight) { 941 bitmapWidth = cellWidth; 942 bitmapHeight = (int) (imageHeight * ((float) bitmapWidth / imageWidth)); 943 } else { 944 bitmapHeight = cellHeight; 945 bitmapWidth = (int) (imageWidth * ((float) bitmapHeight / imageHeight)); 946 } 947 948 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 949 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 950 } 951 } 952 953 // Generate a preview image if we couldn't load one 954 if (drawable == null) { 955 Resources resources = mLauncher.getResources(); 956 // TODO: This actually uses the apps customize cell layout params, where as we make want 957 // the Workspace params for more accuracy. 958 int targetWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 959 int targetHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 960 int bitmapWidth = targetWidth; 961 int bitmapHeight = targetHeight; 962 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 963 float iconScale = 1f; 964 965 // Determine the size of the bitmap we want to draw 966 if (cellHSpan == cellVSpan) { 967 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 968 if (cellHSpan <= 1) { 969 bitmapWidth = bitmapHeight = mAppIconSize + 2 * offset; 970 } else { 971 bitmapWidth = bitmapHeight = mAppIconSize + 4 * offset; 972 } 973 } else { 974 // Otherwise, ensure that we are properly sized within the cellWidth/Height 975 if (targetWidth > targetHeight) { 976 bitmapWidth = Math.min(targetWidth, cellWidth); 977 bitmapHeight = (int) (targetHeight * ((float) bitmapWidth / targetWidth)); 978 iconScale = Math.min((float) bitmapHeight / (mAppIconSize + 2 * offset), 1f); 979 } else { 980 bitmapHeight = Math.min(targetHeight, cellHeight); 981 bitmapWidth = (int) (targetWidth * ((float) bitmapHeight / targetHeight)); 982 iconScale = Math.min((float) bitmapWidth / (mAppIconSize + 2 * offset), 1f); 983 } 984 } 985 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 986 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 987 bitmapWidth); 988 989 // Draw the icon in the top left corner 990 try { 991 Drawable icon = null; 992 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 993 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 994 995 renderDrawableToBitmap(icon, preview, (int) (offset * iconScale), 996 (int) (offset * iconScale), (int) (mAppIconSize * iconScale), 997 (int) (mAppIconSize * iconScale)); 998 } catch (Resources.NotFoundException e) {} 999 } 1000 return preview; 1001 } 1002 1003 public void syncWidgetPageItems(int page, boolean immediate) { 1004 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1005 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1006 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1007 1008 // Calculate the dimensions of each cell we are giving to each widget 1009 ArrayList<Object> items = new ArrayList<Object>(); 1010 int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1011 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1012 int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1013 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1014 1015 // Prepare the set of widgets to load previews for in the background 1016 int offset = page * numItemsPerPage; 1017 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1018 items.add(mWidgets.get(i)); 1019 } 1020 1021 // Prepopulate the pages with the other widget info, and fill in the previews later 1022 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1023 layout.setColumnCount(layout.getCellCountX()); 1024 for (int i = 0; i < items.size(); ++i) { 1025 Object rawInfo = items.get(i); 1026 PendingAddItemInfo createItemInfo = null; 1027 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1028 R.layout.apps_customize_widget, layout, false); 1029 if (rawInfo instanceof AppWidgetProviderInfo) { 1030 // Fill in the widget information 1031 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1032 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1033 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1034 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans, 1035 mHolographicOutlineHelper); 1036 widget.setTag(createItemInfo); 1037 } else if (rawInfo instanceof ResolveInfo) { 1038 // Fill in the shortcuts information 1039 ResolveInfo info = (ResolveInfo) rawInfo; 1040 createItemInfo = new PendingAddItemInfo(); 1041 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1042 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1043 info.activityInfo.name); 1044 widget.applyFromResolveInfo(mPackageManager, info, mHolographicOutlineHelper); 1045 widget.setTag(createItemInfo); 1046 } 1047 widget.setOnClickListener(this); 1048 widget.setOnLongClickListener(this); 1049 widget.setOnTouchListener(this); 1050 1051 // Layout each widget 1052 int ix = i % mWidgetCountX; 1053 int iy = i / mWidgetCountX; 1054 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1055 GridLayout.spec(iy, GridLayout.LEFT), 1056 GridLayout.spec(ix, GridLayout.TOP)); 1057 lp.width = cellWidth; 1058 lp.height = cellHeight; 1059 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1060 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1061 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1062 layout.addView(widget, lp); 1063 } 1064 1065 // Load the widget previews 1066 if (immediate) { 1067 AsyncTaskPageData data = new AsyncTaskPageData(page, items, cellWidth, cellHeight, 1068 mWidgetCountX, null, null); 1069 loadWidgetPreviewsInBackground(null, data); 1070 onSyncWidgetPageItems(data); 1071 } else { 1072 prepareLoadWidgetPreviewsTask(page, items, cellWidth, cellHeight, mWidgetCountX); 1073 } 1074 } 1075 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1076 AsyncTaskPageData data) { 1077 if (task != null) { 1078 // Ensure that this task starts running at the correct priority 1079 task.syncThreadPriority(); 1080 } 1081 1082 // Load each of the widget/shortcut previews 1083 ArrayList<Object> items = data.items; 1084 ArrayList<Bitmap> images = data.generatedImages; 1085 int count = items.size(); 1086 int cellWidth = data.cellWidth; 1087 int cellHeight = data.cellHeight; 1088 for (int i = 0; i < count; ++i) { 1089 if (task != null) { 1090 // Ensure we haven't been cancelled yet 1091 if (task.isCancelled()) break; 1092 // Before work on each item, ensure that this task is running at the correct 1093 // priority 1094 task.syncThreadPriority(); 1095 } 1096 1097 Object rawInfo = items.get(i); 1098 if (rawInfo instanceof AppWidgetProviderInfo) { 1099 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1100 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1101 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 1102 cellWidth, cellHeight)); 1103 } else if (rawInfo instanceof ResolveInfo) { 1104 // Fill in the shortcuts information 1105 ResolveInfo info = (ResolveInfo) rawInfo; 1106 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 1107 } 1108 } 1109 } 1110 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1111 int page = data.page; 1112 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1113 1114 ArrayList<Object> items = data.items; 1115 int count = items.size(); 1116 for (int i = 0; i < count; ++i) { 1117 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1118 if (widget != null) { 1119 Bitmap preview = data.generatedImages.get(i); 1120 boolean scale = 1121 (preview.getWidth() >= data.cellWidth || 1122 preview.getHeight() >= data.cellHeight); 1123 1124 widget.applyPreview(new FastBitmapDrawable(preview), i, scale); 1125 } 1126 } 1127 layout.createHardwareLayer(); 1128 1129 invalidate(); 1130 forceUpdateAdjacentPagesAlpha(); 1131 1132 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 1133 if (mFadeInAdjacentScreens) { 1134 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 1135 } 1136 */ 1137 } 1138 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 1139 // Invalidate early to short-circuit children invalidates 1140 invalidate(); 1141 1142 int page = data.page; 1143 ViewGroup layout = (ViewGroup) getPageAt(page); 1144 if (layout instanceof PagedViewCellLayout) { 1145 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 1146 int count = cl.getPageChildCount(); 1147 if (count != data.generatedImages.size()) return; 1148 for (int i = 0; i < count; ++i) { 1149 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 1150 icon.setHolographicOutline(data.generatedImages.get(i)); 1151 } 1152 } else { 1153 int count = layout.getChildCount(); 1154 if (count != data.generatedImages.size()) return; 1155 for (int i = 0; i < count; ++i) { 1156 View v = layout.getChildAt(i); 1157 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 1158 } 1159 } 1160 } 1161 1162 @Override 1163 public void syncPages() { 1164 removeAllViews(); 1165 cancelAllTasks(); 1166 1167 Context context = getContext(); 1168 for (int j = 0; j < mNumWidgetPages; ++j) { 1169 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1170 mWidgetCountY); 1171 setupPage(layout); 1172 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1173 LayoutParams.MATCH_PARENT)); 1174 } 1175 1176 for (int i = 0; i < mNumAppsPages; ++i) { 1177 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1178 setupPage(layout); 1179 addView(layout); 1180 } 1181 } 1182 1183 @Override 1184 public void syncPageItems(int page, boolean immediate) { 1185 if (page < mNumAppsPages) { 1186 syncAppsPageItems(page, immediate); 1187 } else { 1188 syncWidgetPageItems(page - mNumAppsPages, immediate); 1189 } 1190 } 1191 1192 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1193 // it is in the z-order. This is important to insure touch events are handled correctly. 1194 View getPageAt(int index) { 1195 return getChildAt(getChildCount() - index - 1); 1196 } 1197 1198 @Override 1199 protected int indexToPage(int index) { 1200 return getChildCount() - index - 1; 1201 } 1202 1203 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1204 @Override 1205 protected void screenScrolled(int screenCenter) { 1206 super.screenScrolled(screenCenter); 1207 1208 for (int i = 0; i < getChildCount(); i++) { 1209 View v = getPageAt(i); 1210 if (v != null) { 1211 float scrollProgress = getScrollProgress(screenCenter, v, i); 1212 1213 float interpolatedProgress = 1214 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1215 float scale = (1 - interpolatedProgress) + 1216 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1217 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1218 1219 float alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1220 1 - Math.abs(scrollProgress)) : 1.0f; 1221 1222 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1223 int pageWidth = v.getMeasuredWidth(); 1224 int pageHeight = v.getMeasuredHeight(); 1225 1226 if (PERFORM_OVERSCROLL_ROTATION) { 1227 if (i == 0 && scrollProgress < 0) { 1228 // Overscroll to the left 1229 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1230 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1231 scale = 1.0f; 1232 alpha = 1.0f; 1233 // On the first page, we don't want the page to have any lateral motion 1234 translationX = getScrollX(); 1235 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1236 // Overscroll to the right 1237 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1238 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1239 scale = 1.0f; 1240 alpha = 1.0f; 1241 // On the last page, we don't want the page to have any lateral motion. 1242 translationX = getScrollX() - mMaxScrollX; 1243 } else { 1244 v.setPivotY(pageHeight / 2.0f); 1245 v.setPivotX(pageWidth / 2.0f); 1246 v.setRotationY(0f); 1247 } 1248 } 1249 1250 v.setTranslationX(translationX); 1251 v.setScaleX(scale); 1252 v.setScaleY(scale); 1253 v.setAlpha(alpha); 1254 } 1255 } 1256 } 1257 1258 protected void overScroll(float amount) { 1259 acceleratedOverScroll(amount); 1260 } 1261 1262 /** 1263 * Used by the parent to get the content width to set the tab bar to 1264 * @return 1265 */ 1266 public int getPageContentWidth() { 1267 return mContentWidth; 1268 } 1269 1270 @Override 1271 protected void onPageEndMoving() { 1272 super.onPageEndMoving(); 1273 1274 // We reset the save index when we change pages so that it will be recalculated on next 1275 // rotation 1276 mSaveInstanceStateItemIndex = -1; 1277 } 1278 1279 /* 1280 * AllAppsView implementation 1281 */ 1282 @Override 1283 public void setup(Launcher launcher, DragController dragController) { 1284 mLauncher = launcher; 1285 mDragController = dragController; 1286 } 1287 @Override 1288 public void zoom(float zoom, boolean animate) { 1289 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1290 } 1291 @Override 1292 public boolean isVisible() { 1293 return (getVisibility() == VISIBLE); 1294 } 1295 @Override 1296 public boolean isAnimating() { 1297 return false; 1298 } 1299 @Override 1300 public void setApps(ArrayList<ApplicationInfo> list) { 1301 mApps = list; 1302 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1303 updatePageCounts(); 1304 1305 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1306 // request a layout to do this test and invalidate the page data when ready. 1307 if (testDataReady()) requestLayout(); 1308 } 1309 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1310 // We add it in place, in alphabetical order 1311 int count = list.size(); 1312 for (int i = 0; i < count; ++i) { 1313 ApplicationInfo info = list.get(i); 1314 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1315 if (index < 0) { 1316 mApps.add(-(index + 1), info); 1317 } 1318 } 1319 } 1320 @Override 1321 public void addApps(ArrayList<ApplicationInfo> list) { 1322 addAppsWithoutInvalidate(list); 1323 updatePageCounts(); 1324 invalidatePageData(); 1325 } 1326 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1327 ComponentName removeComponent = item.intent.getComponent(); 1328 int length = list.size(); 1329 for (int i = 0; i < length; ++i) { 1330 ApplicationInfo info = list.get(i); 1331 if (info.intent.getComponent().equals(removeComponent)) { 1332 return i; 1333 } 1334 } 1335 return -1; 1336 } 1337 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1338 // loop through all the apps and remove apps that have the same component 1339 int length = list.size(); 1340 for (int i = 0; i < length; ++i) { 1341 ApplicationInfo info = list.get(i); 1342 int removeIndex = findAppByComponent(mApps, info); 1343 if (removeIndex > -1) { 1344 mApps.remove(removeIndex); 1345 } 1346 } 1347 } 1348 @Override 1349 public void removeApps(ArrayList<ApplicationInfo> list) { 1350 removeAppsWithoutInvalidate(list); 1351 updatePageCounts(); 1352 invalidatePageData(); 1353 } 1354 @Override 1355 public void updateApps(ArrayList<ApplicationInfo> list) { 1356 // We remove and re-add the updated applications list because it's properties may have 1357 // changed (ie. the title), and this will ensure that the items will be in their proper 1358 // place in the list. 1359 removeAppsWithoutInvalidate(list); 1360 addAppsWithoutInvalidate(list); 1361 updatePageCounts(); 1362 1363 invalidatePageData(); 1364 } 1365 1366 @Override 1367 public void reset() { 1368 AppsCustomizeTabHost tabHost = getTabHost(); 1369 String tag = tabHost.getCurrentTabTag(); 1370 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1371 tabHost.setCurrentTabFromContent(ContentType.Applications); 1372 } 1373 if (mCurrentPage != 0) { 1374 invalidatePageData(0); 1375 } 1376 } 1377 1378 private AppsCustomizeTabHost getTabHost() { 1379 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1380 } 1381 1382 @Override 1383 public void dumpState() { 1384 // TODO: Dump information related to current list of Applications, Widgets, etc. 1385 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1386 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1387 } 1388 private void dumpAppWidgetProviderInfoList(String tag, String label, 1389 ArrayList<Object> list) { 1390 Log.d(tag, label + " size=" + list.size()); 1391 for (Object i: list) { 1392 if (i instanceof AppWidgetProviderInfo) { 1393 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1394 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1395 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1396 + " initialLayout=" + info.initialLayout 1397 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1398 } else if (i instanceof ResolveInfo) { 1399 ResolveInfo info = (ResolveInfo) i; 1400 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1401 + info.icon); 1402 } 1403 } 1404 } 1405 @Override 1406 public void surrender() { 1407 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1408 // should stop this now. 1409 1410 // Stop all background tasks 1411 cancelAllTasks(); 1412 } 1413 1414 /* 1415 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1416 * widget previews in the background with the AsyncTasks. 1417 */ 1418 protected int getAssociatedLowerPageBound(int page) { 1419 return Math.max(0, page - 2); 1420 } 1421 protected int getAssociatedUpperPageBound(int page) { 1422 final int count = getChildCount(); 1423 return Math.min(page + 2, count - 1); 1424 } 1425 1426 @Override 1427 protected String getCurrentPageDescription() { 1428 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1429 int stringId = R.string.default_scroll_format; 1430 int count = 0; 1431 1432 if (page < mNumAppsPages) { 1433 stringId = R.string.apps_customize_apps_scroll_format; 1434 count = mNumAppsPages; 1435 } else { 1436 page -= mNumAppsPages; 1437 stringId = R.string.apps_customize_widgets_scroll_format; 1438 count = mNumWidgetPages; 1439 } 1440 1441 return String.format(mContext.getString(stringId), page + 1, count); 1442 } 1443} 1444