AppsCustomizePagedView.java revision c6f10b906fc9c120cafc81046a42b2434ff635a9
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.MaskFilter; 37import android.graphics.Paint; 38import android.graphics.PorterDuff; 39import android.graphics.Rect; 40import android.graphics.TableMaskFilter; 41import android.graphics.drawable.Drawable; 42import android.os.AsyncTask; 43import android.os.Process; 44import android.util.AttributeSet; 45import android.util.Log; 46import android.view.Gravity; 47import android.view.KeyEvent; 48import android.view.LayoutInflater; 49import android.view.MotionEvent; 50import android.view.View; 51import android.view.ViewConfiguration; 52import android.view.ViewGroup; 53import android.view.animation.AccelerateInterpolator; 54import android.view.animation.DecelerateInterpolator; 55import android.widget.GridLayout; 56import android.widget.ImageView; 57import android.widget.Toast; 58 59import com.android.launcher.R; 60import com.android.launcher2.DropTarget.DragObject; 61 62import java.util.ArrayList; 63import java.util.Collections; 64import java.util.Iterator; 65import java.util.List; 66 67/** 68 * A simple callback interface which also provides the results of the task. 69 */ 70interface AsyncTaskCallback { 71 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 72} 73 74/** 75 * The data needed to perform either of the custom AsyncTasks. 76 */ 77class AsyncTaskPageData { 78 enum Type { 79 LoadWidgetPreviewData, 80 LoadHolographicIconsData 81 } 82 83 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 84 AsyncTaskCallback postR) { 85 page = p; 86 items = l; 87 sourceImages = si; 88 generatedImages = new ArrayList<Bitmap>(); 89 maxImageWidth = maxImageHeight = -1; 90 doInBackgroundCallback = bgR; 91 postExecuteCallback = postR; 92 } 93 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 94 AsyncTaskCallback postR) { 95 page = p; 96 items = l; 97 generatedImages = new ArrayList<Bitmap>(); 98 maxImageWidth = cw; 99 maxImageHeight = ch; 100 doInBackgroundCallback = bgR; 101 postExecuteCallback = postR; 102 } 103 void cleanup(boolean cancelled) { 104 // Clean up any references to source/generated bitmaps 105 if (sourceImages != null) { 106 if (cancelled) { 107 for (Bitmap b : sourceImages) { 108 b.recycle(); 109 } 110 } 111 sourceImages.clear(); 112 } 113 if (generatedImages != null) { 114 if (cancelled) { 115 for (Bitmap b : generatedImages) { 116 b.recycle(); 117 } 118 } 119 generatedImages.clear(); 120 } 121 } 122 int page; 123 ArrayList<Object> items; 124 ArrayList<Bitmap> sourceImages; 125 ArrayList<Bitmap> generatedImages; 126 int maxImageWidth; 127 int maxImageHeight; 128 AsyncTaskCallback doInBackgroundCallback; 129 AsyncTaskCallback postExecuteCallback; 130} 131 132/** 133 * A generic template for an async task used in AppsCustomize. 134 */ 135class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 136 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 137 page = p; 138 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 139 dataType = ty; 140 } 141 @Override 142 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 143 if (params.length != 1) return null; 144 // Load each of the widget previews in the background 145 params[0].doInBackgroundCallback.run(this, params[0]); 146 return params[0]; 147 } 148 @Override 149 protected void onPostExecute(AsyncTaskPageData result) { 150 // All the widget previews are loaded, so we can just callback to inflate the page 151 result.postExecuteCallback.run(this, result); 152 } 153 154 void setThreadPriority(int p) { 155 threadPriority = p; 156 } 157 void syncThreadPriority() { 158 Process.setThreadPriority(threadPriority); 159 } 160 161 // The page that this async task is associated with 162 AsyncTaskPageData.Type dataType; 163 int page; 164 int threadPriority; 165} 166 167/** 168 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 169 */ 170public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 171 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource { 172 static final String LOG_TAG = "AppsCustomizePagedView"; 173 174 /** 175 * The different content types that this paged view can show. 176 */ 177 public enum ContentType { 178 Applications, 179 Widgets 180 } 181 182 // Refs 183 private Launcher mLauncher; 184 private DragController mDragController; 185 private final LayoutInflater mLayoutInflater; 186 private final PackageManager mPackageManager; 187 188 // Save and Restore 189 private int mSaveInstanceStateItemIndex = -1; 190 191 // Content 192 private ArrayList<ApplicationInfo> mApps; 193 private ArrayList<Object> mWidgets; 194 195 // Cling 196 private int mClingFocusedX; 197 private int mClingFocusedY; 198 199 // Caching 200 private Canvas mCanvas; 201 private Drawable mDefaultWidgetBackground; 202 private IconCache mIconCache; 203 private int mDragViewMultiplyColor; 204 205 // Dimens 206 private int mContentWidth; 207 private int mAppIconSize; 208 private int mMaxAppCellCountX, mMaxAppCellCountY; 209 private int mWidgetCountX, mWidgetCountY; 210 private int mWidgetWidthGap, mWidgetHeightGap; 211 private final int mWidgetPreviewIconPaddedDimension; 212 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 213 private PagedViewCellLayout mWidgetSpacingLayout; 214 private int mNumAppsPages; 215 private int mNumWidgetPages; 216 217 // Relating to the scroll and overscroll effects 218 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 219 private static float CAMERA_DISTANCE = 6500; 220 private static float TRANSITION_SCALE_FACTOR = 0.74f; 221 private static float TRANSITION_PIVOT = 0.65f; 222 private static float TRANSITION_MAX_ROTATION = 22; 223 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 224 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 225 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 226 227 // Previews & outlines 228 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 229 private HolographicOutlineHelper mHolographicOutlineHelper; 230 private static final int sPageSleepDelay = 150; 231 232 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 233 super(context, attrs); 234 mLayoutInflater = LayoutInflater.from(context); 235 mPackageManager = context.getPackageManager(); 236 mApps = new ArrayList<ApplicationInfo>(); 237 mWidgets = new ArrayList<Object>(); 238 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 239 mHolographicOutlineHelper = new HolographicOutlineHelper(); 240 mCanvas = new Canvas(); 241 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 242 243 // Save the default widget preview background 244 Resources resources = context.getResources(); 245 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 246 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 247 mDragViewMultiplyColor = resources.getColor(R.color.drag_view_multiply_color); 248 249 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 250 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 251 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 252 mWidgetWidthGap = 253 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 254 mWidgetHeightGap = 255 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 256 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 257 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 258 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 259 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 260 a.recycle(); 261 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 262 263 // The padding on the non-matched dimension for the default widget preview icons 264 // (top + bottom) 265 mWidgetPreviewIconPaddedDimension = 266 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 267 mFadeInAdjacentScreens = false; 268 } 269 270 @Override 271 protected void init() { 272 super.init(); 273 mCenterPagesVertically = false; 274 275 Context context = getContext(); 276 Resources r = context.getResources(); 277 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 278 } 279 280 @Override 281 protected void onUnhandledTap(MotionEvent ev) { 282 if (LauncherApplication.isScreenLarge()) { 283 // Dismiss AppsCustomize if we tap 284 mLauncher.showWorkspace(true); 285 } 286 } 287 288 /** Returns the item index of the center item on this page so that we can restore to this 289 * item index when we rotate. */ 290 private int getMiddleComponentIndexOnCurrentPage() { 291 int i = -1; 292 if (getPageCount() > 0) { 293 int currentPage = getCurrentPage(); 294 if (currentPage < mNumAppsPages) { 295 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 296 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 297 int numItemsPerPage = mCellCountX * mCellCountY; 298 int childCount = childrenLayout.getChildCount(); 299 if (childCount > 0) { 300 i = (currentPage * numItemsPerPage) + (childCount / 2); 301 } 302 } else { 303 int numApps = mApps.size(); 304 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 305 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 306 int childCount = layout.getChildCount(); 307 if (childCount > 0) { 308 i = numApps + 309 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 310 } 311 } 312 } 313 return i; 314 } 315 316 /** Get the index of the item to restore to if we need to restore the current page. */ 317 int getSaveInstanceStateIndex() { 318 if (mSaveInstanceStateItemIndex == -1) { 319 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 320 } 321 return mSaveInstanceStateItemIndex; 322 } 323 324 /** Returns the page in the current orientation which is expected to contain the specified 325 * item index. */ 326 int getPageForComponent(int index) { 327 if (index < 0) return 0; 328 329 if (index < mApps.size()) { 330 int numItemsPerPage = mCellCountX * mCellCountY; 331 return (index / numItemsPerPage); 332 } else { 333 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 334 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 335 } 336 } 337 338 /** 339 * This differs from isDataReady as this is the test done if isDataReady is not set. 340 */ 341 private boolean testDataReady() { 342 // We only do this test once, and we default to the Applications page, so we only really 343 // have to wait for there to be apps. 344 // TODO: What if one of them is validly empty 345 return !mApps.isEmpty() && !mWidgets.isEmpty(); 346 } 347 348 /** Restores the page for an item at the specified index */ 349 void restorePageForIndex(int index) { 350 if (index < 0) return; 351 mSaveInstanceStateItemIndex = index; 352 } 353 354 private void updatePageCounts() { 355 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 356 (float) (mWidgetCountX * mWidgetCountY)); 357 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 358 } 359 360 protected void onDataReady(int width, int height) { 361 // Note that we transpose the counts in portrait so that we get a similar layout 362 boolean isLandscape = getResources().getConfiguration().orientation == 363 Configuration.ORIENTATION_LANDSCAPE; 364 int maxCellCountX = Integer.MAX_VALUE; 365 int maxCellCountY = Integer.MAX_VALUE; 366 if (LauncherApplication.isScreenLarge()) { 367 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 368 LauncherModel.getCellCountY()); 369 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 370 LauncherModel.getCellCountX()); 371 } 372 if (mMaxAppCellCountX > -1) { 373 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 374 } 375 if (mMaxAppCellCountY > -1) { 376 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 377 } 378 379 // Now that the data is ready, we can calculate the content width, the number of cells to 380 // use for each page 381 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 382 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 383 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 384 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 385 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 386 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 387 updatePageCounts(); 388 389 // Force a measure to update recalculate the gaps 390 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 391 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 392 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 393 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 394 395 // Restore the page 396 int page = getPageForComponent(mSaveInstanceStateItemIndex); 397 invalidatePageData(Math.max(0, page)); 398 399 // Calculate the position for the cling punch through 400 int[] offset = new int[2]; 401 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 402 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 403 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + offset[0]; 404 pos[1] += (getMeasuredHeight() - mWidgetSpacingLayout.getMeasuredHeight()) / 2 + offset[1]; 405 mLauncher.showFirstRunAllAppsCling(pos); 406 407 } 408 409 @Override 410 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 411 int width = MeasureSpec.getSize(widthMeasureSpec); 412 int height = MeasureSpec.getSize(heightMeasureSpec); 413 if (!isDataReady()) { 414 if (testDataReady()) { 415 setDataIsReady(); 416 setMeasuredDimension(width, height); 417 onDataReady(width, height); 418 } 419 } 420 421 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 422 } 423 424 /** Removes and returns the ResolveInfo with the specified ComponentName */ 425 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 426 ComponentName cn) { 427 Iterator<ResolveInfo> iter = list.iterator(); 428 while (iter.hasNext()) { 429 ResolveInfo rinfo = iter.next(); 430 ActivityInfo info = rinfo.activityInfo; 431 ComponentName c = new ComponentName(info.packageName, info.name); 432 if (c.equals(cn)) { 433 iter.remove(); 434 return rinfo; 435 } 436 } 437 return null; 438 } 439 440 public void onPackagesUpdated() { 441 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 442 // by a broadcast receiver, and in order for it to work correctly, we need to know that 443 // the AppWidgetService has already received and processed the same broadcast. Since there 444 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 445 // we should have a more precise way of ensuring the AppWidgetService is up to date. 446 postDelayed(new Runnable() { 447 public void run() { 448 updatePackages(); 449 } 450 }, 500); 451 } 452 453 public void updatePackages() { 454 // Get the list of widgets and shortcuts 455 boolean wasEmpty = mWidgets.isEmpty(); 456 mWidgets.clear(); 457 List<AppWidgetProviderInfo> widgets = 458 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 459 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 460 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 461 for (AppWidgetProviderInfo widget : widgets) { 462 if (widget.minWidth > 0 && widget.minHeight > 0) { 463 mWidgets.add(widget); 464 } else { 465 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 466 widget.minWidth + ", " + widget.minHeight + ")"); 467 } 468 } 469 mWidgets.addAll(shortcuts); 470 Collections.sort(mWidgets, 471 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 472 updatePageCounts(); 473 474 if (wasEmpty) { 475 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 476 // a layout to do this test and invalidate the page data when ready. 477 if (testDataReady()) requestLayout(); 478 } else { 479 cancelAllTasks(); 480 invalidatePageData(); 481 } 482 } 483 484 @Override 485 public void onClick(View v) { 486 // When we have exited all apps or are in transition, disregard clicks 487 if (!mLauncher.isAllAppsCustomizeOpen() || 488 mLauncher.getWorkspace().isSwitchingState()) return; 489 490 if (v instanceof PagedViewIcon) { 491 // Animate some feedback to the click 492 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 493 animateClickFeedback(v, new Runnable() { 494 @Override 495 public void run() { 496 mLauncher.startActivitySafely(appInfo.intent, appInfo); 497 } 498 }); 499 } else if (v instanceof PagedViewWidget) { 500 // Let the user know that they have to long press to add a widget 501 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 502 Toast.LENGTH_SHORT).show(); 503 504 // Create a little animation to show that the widget can move 505 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 506 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 507 AnimatorSet bounce = new AnimatorSet(); 508 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 509 tyuAnim.setDuration(125); 510 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 511 tydAnim.setDuration(100); 512 bounce.play(tyuAnim).before(tydAnim); 513 bounce.setInterpolator(new AccelerateInterpolator()); 514 bounce.start(); 515 } 516 } 517 518 public boolean onKey(View v, int keyCode, KeyEvent event) { 519 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 520 } 521 522 /* 523 * PagedViewWithDraggableItems implementation 524 */ 525 @Override 526 protected void determineDraggingStart(android.view.MotionEvent ev) { 527 // Disable dragging by pulling an app down for now. 528 } 529 530 private void beginDraggingApplication(View v) { 531 mLauncher.getWorkspace().onDragStartedWithItem(v); 532 mLauncher.getWorkspace().beginDragShared(v, this); 533 } 534 535 private void beginDraggingWidget(View v) { 536 // Get the widget preview as the drag representation 537 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 538 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 539 540 // Compose the drag image 541 Bitmap b; 542 if (createItemInfo instanceof PendingAddWidgetInfo) { 543 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 544 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 545 createItemInfo.spanX = spanXY[0]; 546 createItemInfo.spanY = spanXY[1]; 547 548 int[] maxSize = mLauncher.getWorkspace().estimateItemSize(spanXY[0], spanXY[1], 549 createWidgetInfo, true); 550 b = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 551 createWidgetInfo.icon, spanXY[0], spanXY[1], maxSize[0], maxSize[1]); 552 } else { 553 // Workaround for the fact that we don't keep the original ResolveInfo associated with 554 // the shortcut around. To get the icon, we just render the preview image (which has 555 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 556 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 557 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 558 Drawable preview = image.getDrawable(); 559 mCanvas.setBitmap(b); 560 mCanvas.save(); 561 preview.draw(mCanvas); 562 mCanvas.restore(); 563 mCanvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 564 mCanvas.setBitmap(null); 565 createItemInfo.spanX = createItemInfo.spanY = 1; 566 } 567 568 // We use a custom alpha clip table for the default widget previews 569 Paint alphaClipPaint = null; 570 if (createItemInfo instanceof PendingAddWidgetInfo) { 571 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 572 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 573 alphaClipPaint = new Paint(); 574 alphaClipPaint.setMaskFilter(alphaClipTable); 575 } 576 } 577 578 // Start the drag 579 mLauncher.lockScreenOrientationOnLargeUI(); 580 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, b, alphaClipPaint); 581 mDragController.startDrag(image, b, this, createItemInfo, 582 DragController.DRAG_ACTION_COPY, null); 583 b.recycle(); 584 } 585 @Override 586 protected boolean beginDragging(View v) { 587 // Dismiss the cling 588 mLauncher.dismissAllAppsCling(null); 589 590 if (!super.beginDragging(v)) return false; 591 592 // Go into spring loaded mode (must happen before we startDrag()) 593 mLauncher.enterSpringLoadedDragMode(); 594 595 if (v instanceof PagedViewIcon) { 596 beginDraggingApplication(v); 597 } else if (v instanceof PagedViewWidget) { 598 beginDraggingWidget(v); 599 } 600 return true; 601 } 602 private void endDragging(View target, boolean success) { 603 mLauncher.getWorkspace().onDragStopped(success); 604 if (!success || (target != mLauncher.getWorkspace() && 605 !(target instanceof DeleteDropTarget))) { 606 // Exit spring loaded mode if we have not successfully dropped or have not handled the 607 // drop in Workspace 608 mLauncher.exitSpringLoadedDragMode(); 609 } 610 mLauncher.unlockScreenOrientationOnLargeUI(); 611 612 } 613 614 @Override 615 public void onDropCompleted(View target, DragObject d, boolean success) { 616 endDragging(target, success); 617 618 // Display an error message if the drag failed due to there not being enough space on the 619 // target layout we were dropping on. 620 if (!success) { 621 boolean showOutOfSpaceMessage = false; 622 if (target instanceof Workspace) { 623 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 624 Workspace workspace = (Workspace) target; 625 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 626 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 627 if (layout != null) { 628 layout.calculateSpans(itemInfo); 629 showOutOfSpaceMessage = 630 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 631 } 632 } 633 if (showOutOfSpaceMessage) { 634 mLauncher.showOutOfSpaceMessage(); 635 } 636 } 637 } 638 639 @Override 640 protected void onDetachedFromWindow() { 641 super.onDetachedFromWindow(); 642 cancelAllTasks(); 643 } 644 645 private void cancelAllTasks() { 646 // Clean up all the async tasks 647 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 648 while (iter.hasNext()) { 649 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 650 task.cancel(false); 651 iter.remove(); 652 } 653 } 654 655 public void setContentType(ContentType type) { 656 if (type == ContentType.Widgets) { 657 invalidatePageData(mNumAppsPages, true); 658 } else if (type == ContentType.Applications) { 659 invalidatePageData(0, true); 660 } 661 } 662 663 protected void snapToPage(int whichPage, int delta, int duration) { 664 super.snapToPage(whichPage, delta, duration); 665 updateCurrentTab(whichPage); 666 } 667 668 private void updateCurrentTab(int currentPage) { 669 AppsCustomizeTabHost tabHost = getTabHost(); 670 if (tabHost != null) { 671 String tag = tabHost.getCurrentTabTag(); 672 if (tag != null) { 673 if (currentPage >= mNumAppsPages && 674 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 675 tabHost.setCurrentTabFromContent(ContentType.Widgets); 676 } else if (currentPage < mNumAppsPages && 677 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 678 tabHost.setCurrentTabFromContent(ContentType.Applications); 679 } 680 } 681 } 682 } 683 684 /* 685 * Apps PagedView implementation 686 */ 687 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 688 int childCount = layout.getChildCount(); 689 for (int i = 0; i < childCount; ++i) { 690 layout.getChildAt(i).setVisibility(visibility); 691 } 692 } 693 private void setupPage(PagedViewCellLayout layout) { 694 layout.setCellCount(mCellCountX, mCellCountY); 695 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 696 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 697 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 698 699 // Note: We force a measure here to get around the fact that when we do layout calculations 700 // immediately after syncing, we don't have a proper width. That said, we already know the 701 // expected page width, so we can actually optimize by hiding all the TextView-based 702 // children that are expensive to measure, and let that happen naturally later. 703 setVisibilityOnChildren(layout, View.GONE); 704 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 705 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 706 layout.setMinimumWidth(getPageContentWidth()); 707 layout.measure(widthSpec, heightSpec); 708 setVisibilityOnChildren(layout, View.VISIBLE); 709 } 710 711 public void syncAppsPageItems(int page, boolean immediate) { 712 // ensure that we have the right number of items on the pages 713 int numCells = mCellCountX * mCellCountY; 714 int startIndex = page * numCells; 715 int endIndex = Math.min(startIndex + numCells, mApps.size()); 716 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 717 718 layout.removeAllViewsOnPage(); 719 ArrayList<Object> items = new ArrayList<Object>(); 720 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 721 for (int i = startIndex; i < endIndex; ++i) { 722 ApplicationInfo info = mApps.get(i); 723 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 724 R.layout.apps_customize_application, layout, false); 725 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 726 icon.setOnClickListener(this); 727 icon.setOnLongClickListener(this); 728 icon.setOnTouchListener(this); 729 icon.setOnKeyListener(this); 730 731 int index = i - startIndex; 732 int x = index % mCellCountX; 733 int y = index / mCellCountX; 734 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 735 736 items.add(info); 737 images.add(info.iconBitmap); 738 } 739 740 layout.createHardwareLayers(); 741 742 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 743 if (mFadeInAdjacentScreens) { 744 prepareGenerateHoloOutlinesTask(page, items, images); 745 } 746 */ 747 } 748 749 /** 750 * Return the appropriate thread priority for loading for a given page (we give the current 751 * page much higher priority) 752 */ 753 private int getThreadPriorityForPage(int page) { 754 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 755 int pageDiff = Math.abs(page - mCurrentPage); 756 if (pageDiff <= 0) { 757 // return Process.THREAD_PRIORITY_DEFAULT; 758 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 759 } else if (pageDiff <= 1) { 760 // return Process.THREAD_PRIORITY_BACKGROUND; 761 return Process.THREAD_PRIORITY_DEFAULT; 762 } else { 763 // return Process.THREAD_PRIORITY_LOWEST; 764 return Process.THREAD_PRIORITY_DEFAULT; 765 } 766 } 767 private int getSleepForPage(int page) { 768 int pageDiff = Math.abs(page - mCurrentPage) - 1; 769 return Math.max(0, pageDiff * sPageSleepDelay); 770 } 771 /** 772 * Creates and executes a new AsyncTask to load a page of widget previews. 773 */ 774 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 775 int cellWidth, int cellHeight, int cellCountX) { 776 // Prune all tasks that are no longer needed 777 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 778 while (iter.hasNext()) { 779 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 780 int taskPage = task.page; 781 if ((taskPage == page) || 782 taskPage < getAssociatedLowerPageBound(mCurrentPage - mNumAppsPages) || 783 taskPage > getAssociatedUpperPageBound(mCurrentPage - mNumAppsPages)) { 784 task.cancel(false); 785 iter.remove(); 786 } else { 787 task.setThreadPriority(getThreadPriorityForPage(taskPage + mNumAppsPages)); 788 } 789 } 790 791 // We introduce a slight delay to order the loading of side pages so that we don't thrash 792 final int sleepMs = getSleepForPage(page + mNumAppsPages); 793 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 794 new AsyncTaskCallback() { 795 @Override 796 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 797 try { 798 try { 799 Thread.sleep(sleepMs); 800 } catch (Exception e) {} 801 loadWidgetPreviewsInBackground(task, data); 802 } finally { 803 if (task.isCancelled()) { 804 data.cleanup(true); 805 } 806 } 807 } 808 }, 809 new AsyncTaskCallback() { 810 @Override 811 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 812 try { 813 mRunningTasks.remove(task); 814 if (task.isCancelled()) return; 815 onSyncWidgetPageItems(data); 816 } finally { 817 data.cleanup(task.isCancelled()); 818 } 819 } 820 }); 821 822 // Ensure that the task is appropriately prioritized and runs in parallel 823 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 824 AsyncTaskPageData.Type.LoadWidgetPreviewData); 825 t.setThreadPriority(getThreadPriorityForPage(page)); 826 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 827 mRunningTasks.add(t); 828 } 829 /** 830 * Creates and executes a new AsyncTask to load the outlines for a page of content. 831 */ 832 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 833 ArrayList<Bitmap> images) { 834 // Prune old tasks for this page 835 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 836 while (iter.hasNext()) { 837 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 838 int taskPage = task.page; 839 if ((taskPage == page) && 840 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 841 task.cancel(false); 842 iter.remove(); 843 } 844 } 845 846 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 847 new AsyncTaskCallback() { 848 @Override 849 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 850 try { 851 // Ensure that this task starts running at the correct priority 852 task.syncThreadPriority(); 853 854 ArrayList<Bitmap> images = data.generatedImages; 855 ArrayList<Bitmap> srcImages = data.sourceImages; 856 int count = srcImages.size(); 857 Canvas c = new Canvas(); 858 for (int i = 0; i < count && !task.isCancelled(); ++i) { 859 // Before work on each item, ensure that this task is running at the correct 860 // priority 861 task.syncThreadPriority(); 862 863 Bitmap b = srcImages.get(i); 864 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 865 Bitmap.Config.ARGB_8888); 866 867 c.setBitmap(outline); 868 c.save(); 869 c.drawBitmap(b, 0, 0, null); 870 c.restore(); 871 c.setBitmap(null); 872 873 images.add(outline); 874 } 875 } finally { 876 if (task.isCancelled()) { 877 data.cleanup(true); 878 } 879 } 880 } 881 }, 882 new AsyncTaskCallback() { 883 @Override 884 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 885 try { 886 mRunningTasks.remove(task); 887 if (task.isCancelled()) return; 888 onHolographicPageItemsLoaded(data); 889 } finally { 890 data.cleanup(task.isCancelled()); 891 } 892 } 893 }); 894 895 // Ensure that the outline task always runs in the background, serially 896 AppsCustomizeAsyncTask t = 897 new AppsCustomizeAsyncTask(page, AsyncTaskPageData.Type.LoadHolographicIconsData); 898 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 899 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 900 mRunningTasks.add(t); 901 } 902 903 /* 904 * Widgets PagedView implementation 905 */ 906 private void setupPage(PagedViewGridLayout layout) { 907 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 908 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 909 910 // Note: We force a measure here to get around the fact that when we do layout calculations 911 // immediately after syncing, we don't have a proper width. 912 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 913 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 914 layout.setMinimumWidth(getPageContentWidth()); 915 layout.measure(widthSpec, heightSpec); 916 } 917 918 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 919 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 920 } 921 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 922 float scale) { 923 renderDrawableToBitmap(d, bitmap, x, y, w, h, scale, 0xFFFFFFFF); 924 } 925 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 926 float scale, int multiplyColor) { 927 if (bitmap != null) { 928 Canvas c = new Canvas(bitmap); 929 c.scale(scale, scale); 930 Rect oldBounds = d.copyBounds(); 931 d.setBounds(x, y, x + w, y + h); 932 d.draw(c); 933 d.setBounds(oldBounds); // Restore the bounds 934 if (multiplyColor != 0xFFFFFFFF) { 935 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 936 } 937 c.setBitmap(null); 938 } 939 } 940 private Bitmap getShortcutPreview(ResolveInfo info) { 941 // Render the background 942 int offset = 0; 943 int bitmapSize = mAppIconSize; 944 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 945 946 // Render the icon 947 Drawable icon = mIconCache.getFullResIcon(info); 948 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 949 return preview; 950 } 951 952 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 953 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 954 // Load the preview image if possible 955 String packageName = provider.getPackageName(); 956 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 957 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 958 959 Drawable drawable = null; 960 if (previewImage != 0) { 961 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 962 if (drawable == null) { 963 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 964 Integer.toHexString(previewImage) + " for provider: " + provider); 965 } 966 } 967 968 int bitmapWidth; 969 int bitmapHeight; 970 boolean widgetPreviewExists = (drawable != null); 971 if (widgetPreviewExists) { 972 bitmapWidth = drawable.getIntrinsicWidth(); 973 bitmapHeight = drawable.getIntrinsicHeight(); 974 975 // Cap the size so widget previews don't appear larger than the actual widget 976 maxWidth = Math.min(maxWidth, mWidgetSpacingLayout.estimateCellWidth(cellHSpan)); 977 maxHeight = Math.min(maxHeight, mWidgetSpacingLayout.estimateCellHeight(cellVSpan)); 978 } else { 979 // Determine the size of the bitmap for the preview image we will generate 980 // TODO: This actually uses the apps customize cell layout params, where as we make want 981 // the Workspace params for more accuracy. 982 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 983 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 984 if (cellHSpan == cellVSpan) { 985 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 986 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 987 if (cellHSpan <= 1) { 988 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 989 } else { 990 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 991 } 992 } 993 } 994 995 float scale = 1f; 996 if (bitmapWidth > maxWidth) { 997 scale = maxWidth / (float) bitmapWidth; 998 } 999 if (bitmapHeight * scale > maxHeight) { 1000 scale = maxHeight / (float) bitmapHeight; 1001 } 1002 if (scale != 1f) { 1003 bitmapWidth = (int) (scale * bitmapWidth); 1004 bitmapHeight = (int) (scale * bitmapHeight); 1005 } 1006 1007 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1008 1009 if (widgetPreviewExists) { 1010 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1011 } else { 1012 // Generate a preview image if we couldn't load one 1013 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1014 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1015 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1016 if (cellHSpan != 1 || cellVSpan != 1) { 1017 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1018 bitmapHeight); 1019 } 1020 1021 // Draw the icon in the top left corner 1022 try { 1023 Drawable icon = null; 1024 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1025 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1026 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1027 Resources resources = mLauncher.getResources(); 1028 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1029 1030 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1031 (int) (mAppIconSize * iconScale), 1032 (int) (mAppIconSize * iconScale)); 1033 } catch (Resources.NotFoundException e) {} 1034 } 1035 return preview; 1036 } 1037 1038 public void syncWidgetPageItems(final int page, final boolean immediate) { 1039 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1040 1041 // Calculate the dimensions of each cell we are giving to each widget 1042 final ArrayList<Object> items = new ArrayList<Object>(); 1043 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1044 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1045 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1046 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1047 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1048 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1049 1050 // Prepare the set of widgets to load previews for in the background 1051 int offset = page * numItemsPerPage; 1052 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1053 items.add(mWidgets.get(i)); 1054 } 1055 1056 // Prepopulate the pages with the other widget info, and fill in the previews later 1057 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1058 layout.setColumnCount(layout.getCellCountX()); 1059 for (int i = 0; i < items.size(); ++i) { 1060 Object rawInfo = items.get(i); 1061 PendingAddItemInfo createItemInfo = null; 1062 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1063 R.layout.apps_customize_widget, layout, false); 1064 if (rawInfo instanceof AppWidgetProviderInfo) { 1065 // Fill in the widget information 1066 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1067 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1068 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1069 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans, 1070 mHolographicOutlineHelper); 1071 widget.setTag(createItemInfo); 1072 } else if (rawInfo instanceof ResolveInfo) { 1073 // Fill in the shortcuts information 1074 ResolveInfo info = (ResolveInfo) rawInfo; 1075 createItemInfo = new PendingAddItemInfo(); 1076 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1077 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1078 info.activityInfo.name); 1079 widget.applyFromResolveInfo(mPackageManager, info, mHolographicOutlineHelper); 1080 widget.setTag(createItemInfo); 1081 } 1082 widget.setOnClickListener(this); 1083 widget.setOnLongClickListener(this); 1084 widget.setOnTouchListener(this); 1085 widget.setOnKeyListener(this); 1086 1087 // Layout each widget 1088 int ix = i % mWidgetCountX; 1089 int iy = i / mWidgetCountX; 1090 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1091 GridLayout.spec(iy, GridLayout.LEFT), 1092 GridLayout.spec(ix, GridLayout.TOP)); 1093 lp.width = cellWidth; 1094 lp.height = cellHeight; 1095 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1096 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1097 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1098 layout.addView(widget, lp); 1099 } 1100 1101 // wait until a call on onLayout to start loading, because 1102 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1103 // TODO: can we do a measure/layout immediately? 1104 layout.setOnLayoutListener(new Runnable() { 1105 public void run() { 1106 // Load the widget previews 1107 int maxPreviewWidth = cellWidth; 1108 int maxPreviewHeight = cellHeight; 1109 if (layout.getChildCount() > 0) { 1110 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1111 int[] maxSize = w.getPreviewSize(); 1112 maxPreviewWidth = maxSize[0]; 1113 maxPreviewHeight = maxSize[1]; 1114 } 1115 if (immediate) { 1116 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1117 maxPreviewWidth, maxPreviewHeight, null, null); 1118 loadWidgetPreviewsInBackground(null, data); 1119 onSyncWidgetPageItems(data); 1120 } else { 1121 prepareLoadWidgetPreviewsTask(page, items, 1122 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1123 } 1124 } 1125 }); 1126 } 1127 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1128 AsyncTaskPageData data) { 1129 if (task != null) { 1130 // Ensure that this task starts running at the correct priority 1131 task.syncThreadPriority(); 1132 } 1133 1134 // Load each of the widget/shortcut previews 1135 ArrayList<Object> items = data.items; 1136 ArrayList<Bitmap> images = data.generatedImages; 1137 int count = items.size(); 1138 for (int i = 0; i < count; ++i) { 1139 if (task != null) { 1140 // Ensure we haven't been cancelled yet 1141 if (task.isCancelled()) break; 1142 // Before work on each item, ensure that this task is running at the correct 1143 // priority 1144 task.syncThreadPriority(); 1145 } 1146 1147 Object rawInfo = items.get(i); 1148 if (rawInfo instanceof AppWidgetProviderInfo) { 1149 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1150 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1151 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1152 cellSpans[0], cellSpans[1], data.maxImageWidth, data.maxImageHeight); 1153 images.add(b); 1154 } else if (rawInfo instanceof ResolveInfo) { 1155 // Fill in the shortcuts information 1156 ResolveInfo info = (ResolveInfo) rawInfo; 1157 images.add(getShortcutPreview(info)); 1158 } 1159 } 1160 } 1161 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1162 int page = data.page; 1163 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1164 1165 ArrayList<Object> items = data.items; 1166 int count = items.size(); 1167 for (int i = 0; i < count; ++i) { 1168 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1169 if (widget != null) { 1170 Bitmap preview = data.generatedImages.get(i); 1171 widget.applyPreview(new FastBitmapDrawable(preview), i); 1172 } 1173 } 1174 layout.createHardwareLayer(); 1175 1176 invalidate(); 1177 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 1178 if (mFadeInAdjacentScreens) { 1179 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 1180 } 1181 */ 1182 } 1183 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 1184 // Invalidate early to short-circuit children invalidates 1185 invalidate(); 1186 1187 int page = data.page; 1188 ViewGroup layout = (ViewGroup) getPageAt(page); 1189 if (layout instanceof PagedViewCellLayout) { 1190 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 1191 int count = cl.getPageChildCount(); 1192 if (count != data.generatedImages.size()) return; 1193 for (int i = 0; i < count; ++i) { 1194 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 1195 icon.setHolographicOutline(data.generatedImages.get(i)); 1196 } 1197 } else { 1198 int count = layout.getChildCount(); 1199 if (count != data.generatedImages.size()) return; 1200 for (int i = 0; i < count; ++i) { 1201 View v = layout.getChildAt(i); 1202 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 1203 } 1204 } 1205 } 1206 1207 @Override 1208 public void syncPages() { 1209 removeAllViews(); 1210 cancelAllTasks(); 1211 1212 Context context = getContext(); 1213 for (int j = 0; j < mNumWidgetPages; ++j) { 1214 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1215 mWidgetCountY); 1216 setupPage(layout); 1217 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1218 LayoutParams.MATCH_PARENT)); 1219 } 1220 1221 for (int i = 0; i < mNumAppsPages; ++i) { 1222 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1223 setupPage(layout); 1224 addView(layout); 1225 } 1226 } 1227 1228 @Override 1229 public void syncPageItems(int page, boolean immediate) { 1230 if (page < mNumAppsPages) { 1231 syncAppsPageItems(page, immediate); 1232 } else { 1233 syncWidgetPageItems(page - mNumAppsPages, immediate); 1234 } 1235 } 1236 1237 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1238 // it is in the z-order. This is important to insure touch events are handled correctly. 1239 View getPageAt(int index) { 1240 return getChildAt(getChildCount() - index - 1); 1241 } 1242 1243 @Override 1244 protected int indexToPage(int index) { 1245 return getChildCount() - index - 1; 1246 } 1247 1248 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1249 @Override 1250 protected void screenScrolled(int screenCenter) { 1251 super.screenScrolled(screenCenter); 1252 1253 for (int i = 0; i < getChildCount(); i++) { 1254 View v = getPageAt(i); 1255 if (v != null) { 1256 float scrollProgress = getScrollProgress(screenCenter, v, i); 1257 1258 float interpolatedProgress = 1259 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1260 float scale = (1 - interpolatedProgress) + 1261 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1262 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1263 1264 float alpha; 1265 1266 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1267 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1268 1 - Math.abs(scrollProgress)) : 1.0f; 1269 } else { 1270 // On large screens we need to fade the page as it nears its leftmost position 1271 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1272 } 1273 1274 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1275 int pageWidth = v.getMeasuredWidth(); 1276 int pageHeight = v.getMeasuredHeight(); 1277 1278 if (PERFORM_OVERSCROLL_ROTATION) { 1279 if (i == 0 && scrollProgress < 0) { 1280 // Overscroll to the left 1281 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1282 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1283 scale = 1.0f; 1284 alpha = 1.0f; 1285 // On the first page, we don't want the page to have any lateral motion 1286 translationX = 0; 1287 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1288 // Overscroll to the right 1289 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1290 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1291 scale = 1.0f; 1292 alpha = 1.0f; 1293 // On the last page, we don't want the page to have any lateral motion. 1294 translationX = 0; 1295 } else { 1296 v.setPivotY(pageHeight / 2.0f); 1297 v.setPivotX(pageWidth / 2.0f); 1298 v.setRotationY(0f); 1299 } 1300 } 1301 1302 v.setTranslationX(translationX); 1303 v.setScaleX(scale); 1304 v.setScaleY(scale); 1305 v.setAlpha(alpha); 1306 1307 // If the view has 0 alpha, we set it to be invisible so as to prevent 1308 // it from accepting touches 1309 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1310 v.setVisibility(INVISIBLE); 1311 } else if (v.getVisibility() != VISIBLE) { 1312 v.setVisibility(VISIBLE); 1313 } 1314 } 1315 } 1316 } 1317 1318 protected void overScroll(float amount) { 1319 acceleratedOverScroll(amount); 1320 } 1321 1322 /** 1323 * Used by the parent to get the content width to set the tab bar to 1324 * @return 1325 */ 1326 public int getPageContentWidth() { 1327 return mContentWidth; 1328 } 1329 1330 @Override 1331 protected void onPageEndMoving() { 1332 super.onPageEndMoving(); 1333 1334 // We reset the save index when we change pages so that it will be recalculated on next 1335 // rotation 1336 mSaveInstanceStateItemIndex = -1; 1337 } 1338 1339 /* 1340 * AllAppsView implementation 1341 */ 1342 @Override 1343 public void setup(Launcher launcher, DragController dragController) { 1344 mLauncher = launcher; 1345 mDragController = dragController; 1346 } 1347 @Override 1348 public void zoom(float zoom, boolean animate) { 1349 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1350 } 1351 @Override 1352 public boolean isVisible() { 1353 return (getVisibility() == VISIBLE); 1354 } 1355 @Override 1356 public boolean isAnimating() { 1357 return false; 1358 } 1359 @Override 1360 public void setApps(ArrayList<ApplicationInfo> list) { 1361 mApps = list; 1362 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1363 updatePageCounts(); 1364 1365 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1366 // request a layout to do this test and invalidate the page data when ready. 1367 if (testDataReady()) requestLayout(); 1368 } 1369 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1370 // We add it in place, in alphabetical order 1371 int count = list.size(); 1372 for (int i = 0; i < count; ++i) { 1373 ApplicationInfo info = list.get(i); 1374 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1375 if (index < 0) { 1376 mApps.add(-(index + 1), info); 1377 } 1378 } 1379 } 1380 @Override 1381 public void addApps(ArrayList<ApplicationInfo> list) { 1382 addAppsWithoutInvalidate(list); 1383 updatePageCounts(); 1384 invalidatePageData(); 1385 } 1386 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1387 ComponentName removeComponent = item.intent.getComponent(); 1388 int length = list.size(); 1389 for (int i = 0; i < length; ++i) { 1390 ApplicationInfo info = list.get(i); 1391 if (info.intent.getComponent().equals(removeComponent)) { 1392 return i; 1393 } 1394 } 1395 return -1; 1396 } 1397 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1398 // loop through all the apps and remove apps that have the same component 1399 int length = list.size(); 1400 for (int i = 0; i < length; ++i) { 1401 ApplicationInfo info = list.get(i); 1402 int removeIndex = findAppByComponent(mApps, info); 1403 if (removeIndex > -1) { 1404 mApps.remove(removeIndex); 1405 } 1406 } 1407 } 1408 @Override 1409 public void removeApps(ArrayList<ApplicationInfo> list) { 1410 removeAppsWithoutInvalidate(list); 1411 updatePageCounts(); 1412 invalidatePageData(); 1413 } 1414 @Override 1415 public void updateApps(ArrayList<ApplicationInfo> list) { 1416 // We remove and re-add the updated applications list because it's properties may have 1417 // changed (ie. the title), and this will ensure that the items will be in their proper 1418 // place in the list. 1419 removeAppsWithoutInvalidate(list); 1420 addAppsWithoutInvalidate(list); 1421 updatePageCounts(); 1422 1423 invalidatePageData(); 1424 } 1425 1426 @Override 1427 public void reset() { 1428 AppsCustomizeTabHost tabHost = getTabHost(); 1429 String tag = tabHost.getCurrentTabTag(); 1430 if (tag != null) { 1431 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1432 tabHost.setCurrentTabFromContent(ContentType.Applications); 1433 } 1434 } 1435 if (mCurrentPage != 0) { 1436 invalidatePageData(0); 1437 } 1438 } 1439 1440 private AppsCustomizeTabHost getTabHost() { 1441 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1442 } 1443 1444 @Override 1445 public void dumpState() { 1446 // TODO: Dump information related to current list of Applications, Widgets, etc. 1447 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1448 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1449 } 1450 1451 private void dumpAppWidgetProviderInfoList(String tag, String label, 1452 ArrayList<Object> list) { 1453 Log.d(tag, label + " size=" + list.size()); 1454 for (Object i: list) { 1455 if (i instanceof AppWidgetProviderInfo) { 1456 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1457 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1458 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1459 + " initialLayout=" + info.initialLayout 1460 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1461 } else if (i instanceof ResolveInfo) { 1462 ResolveInfo info = (ResolveInfo) i; 1463 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1464 + info.icon); 1465 } 1466 } 1467 } 1468 1469 @Override 1470 public void surrender() { 1471 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1472 // should stop this now. 1473 1474 // Stop all background tasks 1475 cancelAllTasks(); 1476 } 1477 1478 /* 1479 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1480 * widget previews in the background with the AsyncTasks. 1481 */ 1482 protected int getAssociatedLowerPageBound(int page) { 1483 return Math.max(0, page - 2); 1484 } 1485 protected int getAssociatedUpperPageBound(int page) { 1486 final int count = getChildCount(); 1487 return Math.min(page + 2, count - 1); 1488 } 1489 1490 @Override 1491 protected String getCurrentPageDescription() { 1492 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1493 int stringId = R.string.default_scroll_format; 1494 int count = 0; 1495 1496 if (page < mNumAppsPages) { 1497 stringId = R.string.apps_customize_apps_scroll_format; 1498 count = mNumAppsPages; 1499 } else { 1500 page -= mNumAppsPages; 1501 stringId = R.string.apps_customize_widgets_scroll_format; 1502 count = mNumWidgetPages; 1503 } 1504 1505 return String.format(mContext.getString(stringId), page + 1, count); 1506 } 1507} 1508