AppsCustomizePagedView.java revision 6a877403542c71c1b6228c429bc060755f5f847b
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.Canvas; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.RectF; 38import android.graphics.Bitmap.Config; 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.view.animation.DecelerateInterpolator; 51import android.view.animation.Interpolator; 52import android.widget.GridLayout; 53import android.widget.ImageView; 54import android.widget.Toast; 55 56import com.android.launcher.R; 57import com.android.launcher2.DropTarget.DragObject; 58 59import java.util.ArrayList; 60import java.util.Collections; 61import java.util.Iterator; 62import java.util.List; 63 64/** 65 * A simple callback interface which also provides the results of the task. 66 */ 67interface AsyncTaskCallback { 68 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 69} 70 71/** 72 * The data needed to perform either of the custom AsyncTasks. 73 */ 74class AsyncTaskPageData { 75 enum Type { 76 LoadWidgetPreviewData, 77 LoadHolographicIconsData 78 } 79 80 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 81 AsyncTaskCallback postR) { 82 page = p; 83 items = l; 84 sourceImages = si; 85 generatedImages = new ArrayList<Bitmap>(); 86 cellWidth = cellHeight = -1; 87 doInBackgroundCallback = bgR; 88 postExecuteCallback = postR; 89 } 90 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, int ccx, AsyncTaskCallback bgR, 91 AsyncTaskCallback postR) { 92 page = p; 93 items = l; 94 generatedImages = new ArrayList<Bitmap>(); 95 cellWidth = cw; 96 cellHeight = ch; 97 cellCountX = ccx; 98 doInBackgroundCallback = bgR; 99 postExecuteCallback = postR; 100 } 101 void cleanup(boolean cancelled) { 102 // Clean up any references to source/generated bitmaps 103 if (sourceImages != null) { 104 if (cancelled) { 105 for (Bitmap b : sourceImages) { 106 b.recycle(); 107 } 108 } 109 sourceImages.clear(); 110 } 111 if (generatedImages != null) { 112 if (cancelled) { 113 for (Bitmap b : generatedImages) { 114 b.recycle(); 115 } 116 } 117 generatedImages.clear(); 118 } 119 } 120 int page; 121 ArrayList<Object> items; 122 ArrayList<Bitmap> sourceImages; 123 ArrayList<Bitmap> generatedImages; 124 int cellWidth; 125 int cellHeight; 126 int cellCountX; 127 AsyncTaskCallback doInBackgroundCallback; 128 AsyncTaskCallback postExecuteCallback; 129} 130 131/** 132 * A generic template for an async task used in AppsCustomize. 133 */ 134class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 135 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 136 page = p; 137 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 138 dataType = ty; 139 } 140 @Override 141 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 142 if (params.length != 1) return null; 143 // Load each of the widget previews in the background 144 params[0].doInBackgroundCallback.run(this, params[0]); 145 return params[0]; 146 } 147 @Override 148 protected void onPostExecute(AsyncTaskPageData result) { 149 // All the widget previews are loaded, so we can just callback to inflate the page 150 result.postExecuteCallback.run(this, result); 151 } 152 153 void setThreadPriority(int p) { 154 threadPriority = p; 155 } 156 void syncThreadPriority() { 157 Process.setThreadPriority(threadPriority); 158 } 159 160 // The page that this async task is associated with 161 AsyncTaskPageData.Type dataType; 162 int page; 163 int threadPriority; 164} 165 166/** 167 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 168 */ 169public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 170 AllAppsView, View.OnClickListener, DragSource { 171 static final String LOG_TAG = "AppsCustomizePagedView"; 172 173 /** 174 * The different content types that this paged view can show. 175 */ 176 public enum ContentType { 177 Applications, 178 Widgets 179 } 180 181 // Refs 182 private Launcher mLauncher; 183 private DragController mDragController; 184 private final LayoutInflater mLayoutInflater; 185 private final PackageManager mPackageManager; 186 187 // Save and Restore 188 private int mSaveInstanceStateItemIndex = -1; 189 190 // Content 191 private ArrayList<ApplicationInfo> mApps; 192 private ArrayList<Object> mWidgets; 193 194 // Cling 195 private int mClingFocusedX; 196 private int mClingFocusedY; 197 198 // Caching 199 private Canvas mCanvas; 200 private Drawable mDefaultWidgetBackground; 201 private IconCache mIconCache; 202 private int mDragViewMultiplyColor; 203 204 // Dimens 205 private int mContentWidth; 206 private int mAppIconSize; 207 private int mWidgetCountX, mWidgetCountY; 208 private int mWidgetWidthGap, mWidgetHeightGap; 209 private final int mWidgetPreviewIconPaddedDimension; 210 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 211 private PagedViewCellLayout mWidgetSpacingLayout; 212 private int mNumAppsPages; 213 private int mNumWidgetPages; 214 215 // Relating to the scroll and overscroll effects 216 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 217 private static float CAMERA_DISTANCE = 6500; 218 private static float TRANSITION_SCALE_FACTOR = 0.74f; 219 private static float TRANSITION_PIVOT = 0.65f; 220 private static float TRANSITION_MAX_ROTATION = 22; 221 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 222 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 223 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 224 225 // Previews & outlines 226 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 227 private HolographicOutlineHelper mHolographicOutlineHelper; 228 private static final int sPageSleepDelay = 150; 229 230 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 231 super(context, attrs); 232 mLayoutInflater = LayoutInflater.from(context); 233 mPackageManager = context.getPackageManager(); 234 mApps = new ArrayList<ApplicationInfo>(); 235 mWidgets = new ArrayList<Object>(); 236 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 237 mHolographicOutlineHelper = new HolographicOutlineHelper(); 238 mCanvas = new Canvas(); 239 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 240 241 // Save the default widget preview background 242 Resources resources = context.getResources(); 243 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 244 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 245 mDragViewMultiplyColor = resources.getColor(R.color.drag_view_multiply_color); 246 247 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PagedView, 0, 0); 248 // TODO-APPS_CUSTOMIZE: remove these unnecessary attrs after 249 mCellCountX = a.getInt(R.styleable.PagedView_cellCountX, 6); 250 mCellCountY = a.getInt(R.styleable.PagedView_cellCountY, 4); 251 a.recycle(); 252 a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 253 mWidgetWidthGap = 254 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 255 mWidgetHeightGap = 256 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 257 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 258 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 259 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 260 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 261 a.recycle(); 262 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 263 264 // The padding on the non-matched dimension for the default widget preview icons 265 // (top + bottom) 266 mWidgetPreviewIconPaddedDimension = 267 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 268 mFadeInAdjacentScreens = false; 269 } 270 271 @Override 272 protected void init() { 273 super.init(); 274 mCenterPagesVertically = false; 275 276 Context context = getContext(); 277 Resources r = context.getResources(); 278 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 279 } 280 281 @Override 282 protected void onUnhandledTap(MotionEvent ev) { 283 if (LauncherApplication.isScreenLarge()) { 284 // Dismiss AppsCustomize if we tap 285 mLauncher.showWorkspace(true); 286 } 287 } 288 289 /** Returns the item index of the center item on this page so that we can restore to this 290 * item index when we rotate. */ 291 private int getMiddleComponentIndexOnCurrentPage() { 292 int i = -1; 293 if (getPageCount() > 0) { 294 int currentPage = getCurrentPage(); 295 if (currentPage < mNumAppsPages) { 296 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 297 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 298 int numItemsPerPage = mCellCountX * mCellCountY; 299 int childCount = childrenLayout.getChildCount(); 300 if (childCount > 0) { 301 i = (currentPage * numItemsPerPage) + (childCount / 2); 302 } 303 } else { 304 int numApps = mApps.size(); 305 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 306 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 307 int childCount = layout.getChildCount(); 308 if (childCount > 0) { 309 i = numApps + 310 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 311 } 312 } 313 } 314 return i; 315 } 316 317 /** Get the index of the item to restore to if we need to restore the current page. */ 318 int getSaveInstanceStateIndex() { 319 if (mSaveInstanceStateItemIndex == -1) { 320 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 321 } 322 return mSaveInstanceStateItemIndex; 323 } 324 325 /** Returns the page in the current orientation which is expected to contain the specified 326 * item index. */ 327 int getPageForComponent(int index) { 328 if (index < 0) return 0; 329 330 if (index < mApps.size()) { 331 int numItemsPerPage = mCellCountX * mCellCountY; 332 return (index / numItemsPerPage); 333 } else { 334 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 335 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 336 } 337 } 338 339 /** 340 * This differs from isDataReady as this is the test done if isDataReady is not set. 341 */ 342 private boolean testDataReady() { 343 // We only do this test once, and we default to the Applications page, so we only really 344 // have to wait for there to be apps. 345 // TODO: What if one of them is validly empty 346 return !mApps.isEmpty() && !mWidgets.isEmpty(); 347 } 348 349 /** Restores the page for an item at the specified index */ 350 void restorePageForIndex(int index) { 351 if (index < 0) return; 352 mSaveInstanceStateItemIndex = index; 353 } 354 355 private void updatePageCounts() { 356 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 357 (float) (mWidgetCountX * mWidgetCountY)); 358 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 359 } 360 361 protected void onDataReady(int width, int height) { 362 // Note that we transpose the counts in portrait so that we get a similar layout 363 boolean isLandscape = getResources().getConfiguration().orientation == 364 Configuration.ORIENTATION_LANDSCAPE; 365 int maxCellCountX = Integer.MAX_VALUE; 366 int maxCellCountY = Integer.MAX_VALUE; 367 if (LauncherApplication.isScreenLarge()) { 368 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 369 LauncherModel.getCellCountY()); 370 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 371 LauncherModel.getCellCountX()); 372 } 373 374 // Now that the data is ready, we can calculate the content width, the number of cells to 375 // use for each page 376 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 377 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 378 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 379 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 380 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 381 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 382 updatePageCounts(); 383 384 // Force a measure to update recalculate the gaps 385 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 386 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 387 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 388 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 389 390 // Restore the page 391 int page = getPageForComponent(mSaveInstanceStateItemIndex); 392 invalidatePageData(Math.max(0, page)); 393 394 // Calculate the position for the cling punch through 395 int[] offset = new int[2]; 396 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 397 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 398 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + offset[0]; 399 pos[1] += (getMeasuredHeight() - mWidgetSpacingLayout.getMeasuredHeight()) / 2 + offset[1]; 400 mLauncher.showFirstRunAllAppsCling(pos); 401 402 } 403 404 @Override 405 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 406 int width = MeasureSpec.getSize(widthMeasureSpec); 407 int height = MeasureSpec.getSize(heightMeasureSpec); 408 if (!isDataReady()) { 409 if (testDataReady()) { 410 setDataIsReady(); 411 setMeasuredDimension(width, height); 412 onDataReady(width, height); 413 } 414 } 415 416 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 417 } 418 419 /** Removes and returns the ResolveInfo with the specified ComponentName */ 420 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 421 ComponentName cn) { 422 Iterator<ResolveInfo> iter = list.iterator(); 423 while (iter.hasNext()) { 424 ResolveInfo rinfo = iter.next(); 425 ActivityInfo info = rinfo.activityInfo; 426 ComponentName c = new ComponentName(info.packageName, info.name); 427 if (c.equals(cn)) { 428 iter.remove(); 429 return rinfo; 430 } 431 } 432 return null; 433 } 434 435 public void onPackagesUpdated() { 436 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 437 // by a broadcast receiver, and in order for it to work correctly, we need to know that 438 // the AppWidgetService has already received and processed the same broadcast. Since there 439 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 440 // we should have a more precise way of ensuring the AppWidgetService is up to date. 441 postDelayed(new Runnable() { 442 public void run() { 443 updatePackages(); 444 } 445 }, 500); 446 } 447 448 public void updatePackages() { 449 // Get the list of widgets and shortcuts 450 boolean wasEmpty = mWidgets.isEmpty(); 451 mWidgets.clear(); 452 List<AppWidgetProviderInfo> widgets = 453 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 454 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 455 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 456 mWidgets.addAll(widgets); 457 mWidgets.addAll(shortcuts); 458 Collections.sort(mWidgets, 459 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 460 updatePageCounts(); 461 462 if (wasEmpty) { 463 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 464 // a layout to do this test and invalidate the page data when ready. 465 if (testDataReady()) requestLayout(); 466 } else { 467 cancelAllTasks(); 468 invalidatePageData(); 469 } 470 } 471 472 @Override 473 public void onClick(View v) { 474 // When we have exited all apps or are in transition, disregard clicks 475 if (!mLauncher.isAllAppsCustomizeOpen() || 476 mLauncher.getWorkspace().isSwitchingState()) return; 477 478 if (v instanceof PagedViewIcon) { 479 // Animate some feedback to the click 480 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 481 animateClickFeedback(v, new Runnable() { 482 @Override 483 public void run() { 484 mLauncher.startActivitySafely(appInfo.intent, appInfo); 485 } 486 }); 487 } else if (v instanceof PagedViewWidget) { 488 // Let the user know that they have to long press to add a widget 489 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 490 Toast.LENGTH_SHORT).show(); 491 492 // Create a little animation to show that the widget can move 493 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 494 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 495 AnimatorSet bounce = new AnimatorSet(); 496 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 497 tyuAnim.setDuration(125); 498 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 499 tydAnim.setDuration(100); 500 bounce.play(tyuAnim).before(tydAnim); 501 bounce.setInterpolator(new AccelerateInterpolator()); 502 bounce.start(); 503 } 504 } 505 506 /* 507 * PagedViewWithDraggableItems implementation 508 */ 509 @Override 510 protected void determineDraggingStart(android.view.MotionEvent ev) { 511 // Disable dragging by pulling an app down for now. 512 } 513 514 private void beginDraggingApplication(View v) { 515 mLauncher.getWorkspace().onDragStartedWithItem(v); 516 mLauncher.getWorkspace().beginDragShared(v, this); 517 } 518 519 private void beginDraggingWidget(View v) { 520 // Get the widget preview as the drag representation 521 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 522 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 523 524 // Compose the drag image 525 Bitmap b; 526 Drawable preview = image.getDrawable(); 527 RectF mTmpScaleRect = new RectF(0f,0f,1f,1f); 528 image.getImageMatrix().mapRect(mTmpScaleRect); 529 float scale = mTmpScaleRect.right; 530 int w = (int) (preview.getIntrinsicWidth() * scale); 531 int h = (int) (preview.getIntrinsicHeight() * scale); 532 if (createItemInfo instanceof PendingAddWidgetInfo) { 533 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 534 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 535 createItemInfo.spanX = spanXY[0]; 536 createItemInfo.spanY = spanXY[1]; 537 538 b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 539 renderDrawableToBitmap(preview, b, 0, 0, w, h, scale, mDragViewMultiplyColor); 540 } else { 541 // Workaround for the fact that we don't keep the original ResolveInfo associated with 542 // the shortcut around. To get the icon, we just render the preview image (which has 543 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 544 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 545 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 546 mCanvas.setBitmap(b); 547 mCanvas.save(); 548 preview.draw(mCanvas); 549 mCanvas.restore(); 550 mCanvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 551 mCanvas.setBitmap(null); 552 createItemInfo.spanX = createItemInfo.spanY = 1; 553 } 554 555 // Start the drag 556 mLauncher.lockScreenOrientationOnLargeUI(); 557 mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, 558 createItemInfo.spanY, b); 559 mDragController.startDrag(image, b, this, createItemInfo, 560 DragController.DRAG_ACTION_COPY, null); 561 b.recycle(); 562 } 563 @Override 564 protected boolean beginDragging(View v) { 565 // Dismiss the cling 566 mLauncher.dismissAllAppsCling(null); 567 568 if (!super.beginDragging(v)) return false; 569 570 // Go into spring loaded mode (must happen before we startDrag()) 571 mLauncher.enterSpringLoadedDragMode(); 572 573 if (v instanceof PagedViewIcon) { 574 beginDraggingApplication(v); 575 } else if (v instanceof PagedViewWidget) { 576 beginDraggingWidget(v); 577 } 578 return true; 579 } 580 private void endDragging(View target, boolean success) { 581 mLauncher.getWorkspace().onDragStopped(success); 582 if (!success || (target != mLauncher.getWorkspace() && 583 !(target instanceof DeleteDropTarget))) { 584 // Exit spring loaded mode if we have not successfully dropped or have not handled the 585 // drop in Workspace 586 mLauncher.exitSpringLoadedDragMode(); 587 } 588 mLauncher.unlockScreenOrientationOnLargeUI(); 589 590 } 591 592 @Override 593 public void onDropCompleted(View target, DragObject d, boolean success) { 594 endDragging(target, success); 595 596 // Display an error message if the drag failed due to there not being enough space on the 597 // target layout we were dropping on. 598 if (!success) { 599 boolean showOutOfSpaceMessage = false; 600 if (target instanceof Workspace) { 601 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 602 Workspace workspace = (Workspace) target; 603 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 604 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 605 if (layout != null) { 606 layout.calculateSpans(itemInfo); 607 showOutOfSpaceMessage = 608 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 609 } 610 } 611 if (showOutOfSpaceMessage) { 612 mLauncher.showOutOfSpaceMessage(); 613 } 614 } 615 } 616 617 @Override 618 protected void onDetachedFromWindow() { 619 super.onDetachedFromWindow(); 620 cancelAllTasks(); 621 } 622 623 private void cancelAllTasks() { 624 // Clean up all the async tasks 625 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 626 while (iter.hasNext()) { 627 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 628 task.cancel(false); 629 iter.remove(); 630 } 631 } 632 633 public void setContentType(ContentType type) { 634 if (type == ContentType.Widgets) { 635 invalidatePageData(mNumAppsPages, true); 636 } else if (type == ContentType.Applications) { 637 invalidatePageData(0, true); 638 } 639 } 640 641 protected void snapToPage(int whichPage, int delta, int duration) { 642 super.snapToPage(whichPage, delta, duration); 643 updateCurrentTab(whichPage); 644 } 645 646 private void updateCurrentTab(int currentPage) { 647 AppsCustomizeTabHost tabHost = getTabHost(); 648 String tag = tabHost.getCurrentTabTag(); 649 if (tag != null) { 650 if (currentPage >= mNumAppsPages && 651 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 652 tabHost.setCurrentTabFromContent(ContentType.Widgets); 653 } else if (currentPage < mNumAppsPages && 654 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 655 tabHost.setCurrentTabFromContent(ContentType.Applications); 656 } 657 } 658 } 659 660 /* 661 * Apps PagedView implementation 662 */ 663 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 664 int childCount = layout.getChildCount(); 665 for (int i = 0; i < childCount; ++i) { 666 layout.getChildAt(i).setVisibility(visibility); 667 } 668 } 669 private void setupPage(PagedViewCellLayout layout) { 670 layout.setCellCount(mCellCountX, mCellCountY); 671 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 672 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 673 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 674 675 // Note: We force a measure here to get around the fact that when we do layout calculations 676 // immediately after syncing, we don't have a proper width. That said, we already know the 677 // expected page width, so we can actually optimize by hiding all the TextView-based 678 // children that are expensive to measure, and let that happen naturally later. 679 setVisibilityOnChildren(layout, View.GONE); 680 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 681 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 682 layout.setMinimumWidth(getPageContentWidth()); 683 layout.measure(widthSpec, heightSpec); 684 setVisibilityOnChildren(layout, View.VISIBLE); 685 } 686 687 public void syncAppsPageItems(int page, boolean immediate) { 688 // ensure that we have the right number of items on the pages 689 int numCells = mCellCountX * mCellCountY; 690 int startIndex = page * numCells; 691 int endIndex = Math.min(startIndex + numCells, mApps.size()); 692 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 693 694 layout.removeAllViewsOnPage(); 695 ArrayList<Object> items = new ArrayList<Object>(); 696 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 697 for (int i = startIndex; i < endIndex; ++i) { 698 ApplicationInfo info = mApps.get(i); 699 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 700 R.layout.apps_customize_application, layout, false); 701 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 702 icon.setOnClickListener(this); 703 icon.setOnLongClickListener(this); 704 icon.setOnTouchListener(this); 705 706 int index = i - startIndex; 707 int x = index % mCellCountX; 708 int y = index / mCellCountX; 709 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 710 711 items.add(info); 712 images.add(info.iconBitmap); 713 } 714 715 layout.createHardwareLayers(); 716 717 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 718 if (mFadeInAdjacentScreens) { 719 prepareGenerateHoloOutlinesTask(page, items, images); 720 } 721 */ 722 } 723 724 /** 725 * Return the appropriate thread priority for loading for a given page (we give the current 726 * page much higher priority) 727 */ 728 private int getThreadPriorityForPage(int page) { 729 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 730 int pageDiff = Math.abs(page - mCurrentPage); 731 if (pageDiff <= 0) { 732 // return Process.THREAD_PRIORITY_DEFAULT; 733 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 734 } else if (pageDiff <= 1) { 735 // return Process.THREAD_PRIORITY_BACKGROUND; 736 return Process.THREAD_PRIORITY_DEFAULT; 737 } else { 738 // return Process.THREAD_PRIORITY_LOWEST; 739 return Process.THREAD_PRIORITY_DEFAULT; 740 } 741 } 742 private int getSleepForPage(int page) { 743 int pageDiff = Math.abs(page - mCurrentPage) - 1; 744 return Math.max(0, pageDiff * sPageSleepDelay); 745 } 746 /** 747 * Creates and executes a new AsyncTask to load a page of widget previews. 748 */ 749 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 750 int cellWidth, int cellHeight, int cellCountX) { 751 // Prune all tasks that are no longer needed 752 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 753 while (iter.hasNext()) { 754 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 755 int taskPage = task.page; 756 if ((taskPage == page) || 757 taskPage < getAssociatedLowerPageBound(mCurrentPage - mNumAppsPages) || 758 taskPage > getAssociatedUpperPageBound(mCurrentPage - mNumAppsPages)) { 759 task.cancel(false); 760 iter.remove(); 761 } else { 762 task.setThreadPriority(getThreadPriorityForPage(taskPage + mNumAppsPages)); 763 } 764 } 765 766 // We introduce a slight delay to order the loading of side pages so that we don't thrash 767 final int sleepMs = getSleepForPage(page + mNumAppsPages); 768 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 769 cellCountX, new AsyncTaskCallback() { 770 @Override 771 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 772 try { 773 try { 774 Thread.sleep(sleepMs); 775 } catch (Exception e) {} 776 loadWidgetPreviewsInBackground(task, data); 777 } finally { 778 if (task.isCancelled()) { 779 data.cleanup(true); 780 } 781 } 782 } 783 }, 784 new AsyncTaskCallback() { 785 @Override 786 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 787 try { 788 mRunningTasks.remove(task); 789 if (task.isCancelled()) return; 790 onSyncWidgetPageItems(data); 791 } finally { 792 data.cleanup(task.isCancelled()); 793 } 794 } 795 }); 796 797 // Ensure that the task is appropriately prioritized and runs in parallel 798 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 799 AsyncTaskPageData.Type.LoadWidgetPreviewData); 800 t.setThreadPriority(getThreadPriorityForPage(page)); 801 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 802 mRunningTasks.add(t); 803 } 804 /** 805 * Creates and executes a new AsyncTask to load the outlines for a page of content. 806 */ 807 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 808 ArrayList<Bitmap> images) { 809 // Prune old tasks for this page 810 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 811 while (iter.hasNext()) { 812 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 813 int taskPage = task.page; 814 if ((taskPage == page) && 815 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 816 task.cancel(false); 817 iter.remove(); 818 } 819 } 820 821 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 822 new AsyncTaskCallback() { 823 @Override 824 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 825 try { 826 // Ensure that this task starts running at the correct priority 827 task.syncThreadPriority(); 828 829 ArrayList<Bitmap> images = data.generatedImages; 830 ArrayList<Bitmap> srcImages = data.sourceImages; 831 int count = srcImages.size(); 832 Canvas c = new Canvas(); 833 for (int i = 0; i < count && !task.isCancelled(); ++i) { 834 // Before work on each item, ensure that this task is running at the correct 835 // priority 836 task.syncThreadPriority(); 837 838 Bitmap b = srcImages.get(i); 839 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 840 Bitmap.Config.ARGB_8888); 841 842 c.setBitmap(outline); 843 c.save(); 844 c.drawBitmap(b, 0, 0, null); 845 c.restore(); 846 c.setBitmap(null); 847 848 images.add(outline); 849 } 850 } finally { 851 if (task.isCancelled()) { 852 data.cleanup(true); 853 } 854 } 855 } 856 }, 857 new AsyncTaskCallback() { 858 @Override 859 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 860 try { 861 mRunningTasks.remove(task); 862 if (task.isCancelled()) return; 863 onHolographicPageItemsLoaded(data); 864 } finally { 865 data.cleanup(task.isCancelled()); 866 } 867 } 868 }); 869 870 // Ensure that the outline task always runs in the background, serially 871 AppsCustomizeAsyncTask t = 872 new AppsCustomizeAsyncTask(page, AsyncTaskPageData.Type.LoadHolographicIconsData); 873 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 874 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 875 mRunningTasks.add(t); 876 } 877 878 /* 879 * Widgets PagedView implementation 880 */ 881 private void setupPage(PagedViewGridLayout layout) { 882 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 883 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 884 885 // Note: We force a measure here to get around the fact that when we do layout calculations 886 // immediately after syncing, we don't have a proper width. 887 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 888 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 889 layout.setMinimumWidth(getPageContentWidth()); 890 layout.measure(widthSpec, heightSpec); 891 } 892 893 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 894 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 895 } 896 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 897 float scale) { 898 renderDrawableToBitmap(d, bitmap, x, y, w, h, scale, 0xFFFFFFFF); 899 } 900 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 901 float scale, int multiplyColor) { 902 if (bitmap != null) { 903 Canvas c = new Canvas(bitmap); 904 c.scale(scale, scale); 905 Rect oldBounds = d.copyBounds(); 906 d.setBounds(x, y, x + w, y + h); 907 d.draw(c); 908 d.setBounds(oldBounds); // Restore the bounds 909 if (multiplyColor != 0xFFFFFFFF) { 910 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 911 } 912 c.setBitmap(null); 913 } 914 } 915 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 916 // Render the background 917 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 918 int bitmapSize = mAppIconSize + 2 * offset; 919 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 920 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapSize, bitmapSize); 921 922 // Render the icon 923 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 924 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 925 return preview; 926 } 927 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 928 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 929 930 // Load the preview image if possible 931 String packageName = info.provider.getPackageName(); 932 Drawable drawable = null; 933 Bitmap preview = null; 934 if (info.previewImage != 0) { 935 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 936 if (drawable == null) { 937 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 938 + " for provider: " + info.provider); 939 } else { 940 // Scale down the preview to something that is closer to the cellWidth/Height 941 int imageWidth = drawable.getIntrinsicWidth(); 942 int imageHeight = drawable.getIntrinsicHeight(); 943 int bitmapWidth = imageWidth; 944 int bitmapHeight = imageHeight; 945 if (imageWidth > imageHeight) { 946 bitmapWidth = cellWidth; 947 bitmapHeight = (int) (imageHeight * ((float) bitmapWidth / imageWidth)); 948 } else { 949 bitmapHeight = cellHeight; 950 bitmapWidth = (int) (imageWidth * ((float) bitmapHeight / imageHeight)); 951 } 952 953 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 954 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 955 } 956 } 957 958 // Generate a preview image if we couldn't load one 959 if (drawable == null) { 960 Resources resources = mLauncher.getResources(); 961 // TODO: This actually uses the apps customize cell layout params, where as we make want 962 // the Workspace params for more accuracy. 963 int targetWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 964 int targetHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 965 int bitmapWidth = targetWidth; 966 int bitmapHeight = targetHeight; 967 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 968 float iconScale = 1f; 969 970 // Determine the size of the bitmap we want to draw 971 if (cellHSpan == cellVSpan) { 972 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 973 if (cellHSpan <= 1) { 974 bitmapWidth = bitmapHeight = mAppIconSize + 2 * offset; 975 } else { 976 bitmapWidth = bitmapHeight = mAppIconSize + 4 * offset; 977 } 978 } else { 979 // Otherwise, ensure that we are properly sized within the cellWidth/Height 980 if (targetWidth > targetHeight) { 981 bitmapWidth = Math.min(targetWidth, cellWidth); 982 bitmapHeight = (int) (targetHeight * ((float) bitmapWidth / targetWidth)); 983 iconScale = Math.min((float) bitmapHeight / (mAppIconSize + 2 * offset), 1f); 984 } else { 985 bitmapHeight = Math.min(targetHeight, cellHeight); 986 bitmapWidth = (int) (targetWidth * ((float) bitmapHeight / targetHeight)); 987 iconScale = Math.min((float) bitmapWidth / (mAppIconSize + 2 * offset), 1f); 988 } 989 } 990 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 991 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 992 bitmapWidth); 993 994 // Draw the icon in the top left corner 995 try { 996 Drawable icon = null; 997 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 998 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 999 1000 renderDrawableToBitmap(icon, preview, (int) (offset * iconScale), 1001 (int) (offset * iconScale), (int) (mAppIconSize * iconScale), 1002 (int) (mAppIconSize * iconScale)); 1003 } catch (Resources.NotFoundException e) {} 1004 } 1005 return preview; 1006 } 1007 1008 public void syncWidgetPageItems(int page, boolean immediate) { 1009 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1010 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1011 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1012 1013 // Calculate the dimensions of each cell we are giving to each widget 1014 ArrayList<Object> items = new ArrayList<Object>(); 1015 int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1016 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1017 int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1018 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1019 1020 // Prepare the set of widgets to load previews for in the background 1021 int offset = page * numItemsPerPage; 1022 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1023 items.add(mWidgets.get(i)); 1024 } 1025 1026 // Prepopulate the pages with the other widget info, and fill in the previews later 1027 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1028 layout.setColumnCount(layout.getCellCountX()); 1029 for (int i = 0; i < items.size(); ++i) { 1030 Object rawInfo = items.get(i); 1031 PendingAddItemInfo createItemInfo = null; 1032 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1033 R.layout.apps_customize_widget, layout, false); 1034 if (rawInfo instanceof AppWidgetProviderInfo) { 1035 // Fill in the widget information 1036 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1037 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1038 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1039 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans, 1040 mHolographicOutlineHelper); 1041 widget.setTag(createItemInfo); 1042 } else if (rawInfo instanceof ResolveInfo) { 1043 // Fill in the shortcuts information 1044 ResolveInfo info = (ResolveInfo) rawInfo; 1045 createItemInfo = new PendingAddItemInfo(); 1046 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1047 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1048 info.activityInfo.name); 1049 widget.applyFromResolveInfo(mPackageManager, info, mHolographicOutlineHelper); 1050 widget.setTag(createItemInfo); 1051 } 1052 widget.setOnClickListener(this); 1053 widget.setOnLongClickListener(this); 1054 widget.setOnTouchListener(this); 1055 1056 // Layout each widget 1057 int ix = i % mWidgetCountX; 1058 int iy = i / mWidgetCountX; 1059 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1060 GridLayout.spec(iy, GridLayout.LEFT), 1061 GridLayout.spec(ix, GridLayout.TOP)); 1062 lp.width = cellWidth; 1063 lp.height = cellHeight; 1064 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1065 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1066 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1067 layout.addView(widget, lp); 1068 } 1069 1070 // Load the widget previews 1071 if (immediate) { 1072 AsyncTaskPageData data = new AsyncTaskPageData(page, items, cellWidth, cellHeight, 1073 mWidgetCountX, null, null); 1074 loadWidgetPreviewsInBackground(null, data); 1075 onSyncWidgetPageItems(data); 1076 } else { 1077 prepareLoadWidgetPreviewsTask(page, items, cellWidth, cellHeight, mWidgetCountX); 1078 } 1079 } 1080 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1081 AsyncTaskPageData data) { 1082 if (task != null) { 1083 // Ensure that this task starts running at the correct priority 1084 task.syncThreadPriority(); 1085 } 1086 1087 // Load each of the widget/shortcut previews 1088 ArrayList<Object> items = data.items; 1089 ArrayList<Bitmap> images = data.generatedImages; 1090 int count = items.size(); 1091 int cellWidth = data.cellWidth; 1092 int cellHeight = data.cellHeight; 1093 for (int i = 0; i < count; ++i) { 1094 if (task != null) { 1095 // Ensure we haven't been cancelled yet 1096 if (task.isCancelled()) break; 1097 // Before work on each item, ensure that this task is running at the correct 1098 // priority 1099 task.syncThreadPriority(); 1100 } 1101 1102 Object rawInfo = items.get(i); 1103 if (rawInfo instanceof AppWidgetProviderInfo) { 1104 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1105 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1106 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 1107 cellWidth, cellHeight)); 1108 } else if (rawInfo instanceof ResolveInfo) { 1109 // Fill in the shortcuts information 1110 ResolveInfo info = (ResolveInfo) rawInfo; 1111 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 1112 } 1113 } 1114 } 1115 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1116 int page = data.page; 1117 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1118 1119 ArrayList<Object> items = data.items; 1120 int count = items.size(); 1121 for (int i = 0; i < count; ++i) { 1122 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1123 if (widget != null) { 1124 Bitmap preview = data.generatedImages.get(i); 1125 boolean scale = 1126 (preview.getWidth() >= data.cellWidth || 1127 preview.getHeight() >= data.cellHeight); 1128 1129 widget.applyPreview(new FastBitmapDrawable(preview), i, scale); 1130 } 1131 } 1132 layout.createHardwareLayer(); 1133 1134 invalidate(); 1135 forceUpdateAdjacentPagesAlpha(); 1136 1137 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 1138 if (mFadeInAdjacentScreens) { 1139 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 1140 } 1141 */ 1142 } 1143 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 1144 // Invalidate early to short-circuit children invalidates 1145 invalidate(); 1146 1147 int page = data.page; 1148 ViewGroup layout = (ViewGroup) getPageAt(page); 1149 if (layout instanceof PagedViewCellLayout) { 1150 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 1151 int count = cl.getPageChildCount(); 1152 if (count != data.generatedImages.size()) return; 1153 for (int i = 0; i < count; ++i) { 1154 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 1155 icon.setHolographicOutline(data.generatedImages.get(i)); 1156 } 1157 } else { 1158 int count = layout.getChildCount(); 1159 if (count != data.generatedImages.size()) return; 1160 for (int i = 0; i < count; ++i) { 1161 View v = layout.getChildAt(i); 1162 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 1163 } 1164 } 1165 } 1166 1167 @Override 1168 public void syncPages() { 1169 removeAllViews(); 1170 cancelAllTasks(); 1171 1172 Context context = getContext(); 1173 for (int j = 0; j < mNumWidgetPages; ++j) { 1174 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1175 mWidgetCountY); 1176 setupPage(layout); 1177 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1178 LayoutParams.MATCH_PARENT)); 1179 } 1180 1181 for (int i = 0; i < mNumAppsPages; ++i) { 1182 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1183 setupPage(layout); 1184 addView(layout); 1185 } 1186 } 1187 1188 @Override 1189 public void syncPageItems(int page, boolean immediate) { 1190 if (page < mNumAppsPages) { 1191 syncAppsPageItems(page, immediate); 1192 } else { 1193 syncWidgetPageItems(page - mNumAppsPages, immediate); 1194 } 1195 } 1196 1197 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1198 // it is in the z-order. This is important to insure touch events are handled correctly. 1199 View getPageAt(int index) { 1200 return getChildAt(getChildCount() - index - 1); 1201 } 1202 1203 @Override 1204 protected int indexToPage(int index) { 1205 return getChildCount() - index - 1; 1206 } 1207 1208 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1209 @Override 1210 protected void screenScrolled(int screenCenter) { 1211 super.screenScrolled(screenCenter); 1212 1213 for (int i = 0; i < getChildCount(); i++) { 1214 View v = getPageAt(i); 1215 if (v != null) { 1216 float scrollProgress = getScrollProgress(screenCenter, v, i); 1217 1218 float interpolatedProgress = 1219 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1220 float scale = (1 - interpolatedProgress) + 1221 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1222 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1223 1224 float alpha; 1225 1226 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1227 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1228 1 - Math.abs(scrollProgress)) : 1.0f; 1229 } else { 1230 // On large screens we need to fade the page as it nears its leftmost position 1231 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1232 } 1233 1234 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1235 int pageWidth = v.getMeasuredWidth(); 1236 int pageHeight = v.getMeasuredHeight(); 1237 1238 if (PERFORM_OVERSCROLL_ROTATION) { 1239 if (i == 0 && scrollProgress < 0) { 1240 // Overscroll to the left 1241 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1242 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1243 scale = 1.0f; 1244 alpha = 1.0f; 1245 // On the first page, we don't want the page to have any lateral motion 1246 translationX = getScrollX(); 1247 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1248 // Overscroll to the right 1249 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1250 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1251 scale = 1.0f; 1252 alpha = 1.0f; 1253 // On the last page, we don't want the page to have any lateral motion. 1254 translationX = getScrollX() - mMaxScrollX; 1255 } else { 1256 v.setPivotY(pageHeight / 2.0f); 1257 v.setPivotX(pageWidth / 2.0f); 1258 v.setRotationY(0f); 1259 } 1260 } 1261 1262 v.setTranslationX(translationX); 1263 v.setScaleX(scale); 1264 v.setScaleY(scale); 1265 v.setAlpha(alpha); 1266 } 1267 } 1268 } 1269 1270 protected void overScroll(float amount) { 1271 acceleratedOverScroll(amount); 1272 } 1273 1274 /** 1275 * Used by the parent to get the content width to set the tab bar to 1276 * @return 1277 */ 1278 public int getPageContentWidth() { 1279 return mContentWidth; 1280 } 1281 1282 @Override 1283 protected void onPageEndMoving() { 1284 super.onPageEndMoving(); 1285 1286 // We reset the save index when we change pages so that it will be recalculated on next 1287 // rotation 1288 mSaveInstanceStateItemIndex = -1; 1289 } 1290 1291 /* 1292 * AllAppsView implementation 1293 */ 1294 @Override 1295 public void setup(Launcher launcher, DragController dragController) { 1296 mLauncher = launcher; 1297 mDragController = dragController; 1298 } 1299 @Override 1300 public void zoom(float zoom, boolean animate) { 1301 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1302 } 1303 @Override 1304 public boolean isVisible() { 1305 return (getVisibility() == VISIBLE); 1306 } 1307 @Override 1308 public boolean isAnimating() { 1309 return false; 1310 } 1311 @Override 1312 public void setApps(ArrayList<ApplicationInfo> list) { 1313 mApps = list; 1314 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1315 updatePageCounts(); 1316 1317 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1318 // request a layout to do this test and invalidate the page data when ready. 1319 if (testDataReady()) requestLayout(); 1320 } 1321 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1322 // We add it in place, in alphabetical order 1323 int count = list.size(); 1324 for (int i = 0; i < count; ++i) { 1325 ApplicationInfo info = list.get(i); 1326 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1327 if (index < 0) { 1328 mApps.add(-(index + 1), info); 1329 } 1330 } 1331 } 1332 @Override 1333 public void addApps(ArrayList<ApplicationInfo> list) { 1334 addAppsWithoutInvalidate(list); 1335 updatePageCounts(); 1336 invalidatePageData(); 1337 } 1338 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1339 ComponentName removeComponent = item.intent.getComponent(); 1340 int length = list.size(); 1341 for (int i = 0; i < length; ++i) { 1342 ApplicationInfo info = list.get(i); 1343 if (info.intent.getComponent().equals(removeComponent)) { 1344 return i; 1345 } 1346 } 1347 return -1; 1348 } 1349 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1350 // loop through all the apps and remove apps that have the same component 1351 int length = list.size(); 1352 for (int i = 0; i < length; ++i) { 1353 ApplicationInfo info = list.get(i); 1354 int removeIndex = findAppByComponent(mApps, info); 1355 if (removeIndex > -1) { 1356 mApps.remove(removeIndex); 1357 } 1358 } 1359 } 1360 @Override 1361 public void removeApps(ArrayList<ApplicationInfo> list) { 1362 removeAppsWithoutInvalidate(list); 1363 updatePageCounts(); 1364 invalidatePageData(); 1365 } 1366 @Override 1367 public void updateApps(ArrayList<ApplicationInfo> list) { 1368 // We remove and re-add the updated applications list because it's properties may have 1369 // changed (ie. the title), and this will ensure that the items will be in their proper 1370 // place in the list. 1371 removeAppsWithoutInvalidate(list); 1372 addAppsWithoutInvalidate(list); 1373 updatePageCounts(); 1374 1375 invalidatePageData(); 1376 } 1377 1378 @Override 1379 public void reset() { 1380 AppsCustomizeTabHost tabHost = getTabHost(); 1381 String tag = tabHost.getCurrentTabTag(); 1382 if (tag != null) { 1383 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1384 tabHost.setCurrentTabFromContent(ContentType.Applications); 1385 } 1386 } 1387 if (mCurrentPage != 0) { 1388 invalidatePageData(0); 1389 } 1390 } 1391 1392 private AppsCustomizeTabHost getTabHost() { 1393 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1394 } 1395 1396 @Override 1397 public void dumpState() { 1398 // TODO: Dump information related to current list of Applications, Widgets, etc. 1399 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1400 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1401 } 1402 private void dumpAppWidgetProviderInfoList(String tag, String label, 1403 ArrayList<Object> list) { 1404 Log.d(tag, label + " size=" + list.size()); 1405 for (Object i: list) { 1406 if (i instanceof AppWidgetProviderInfo) { 1407 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1408 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1409 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1410 + " initialLayout=" + info.initialLayout 1411 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1412 } else if (i instanceof ResolveInfo) { 1413 ResolveInfo info = (ResolveInfo) i; 1414 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1415 + info.icon); 1416 } 1417 } 1418 } 1419 @Override 1420 public void surrender() { 1421 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1422 // should stop this now. 1423 1424 // Stop all background tasks 1425 cancelAllTasks(); 1426 } 1427 1428 /* 1429 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1430 * widget previews in the background with the AsyncTasks. 1431 */ 1432 protected int getAssociatedLowerPageBound(int page) { 1433 return Math.max(0, page - 2); 1434 } 1435 protected int getAssociatedUpperPageBound(int page) { 1436 final int count = getChildCount(); 1437 return Math.min(page + 2, count - 1); 1438 } 1439 1440 @Override 1441 protected String getCurrentPageDescription() { 1442 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1443 int stringId = R.string.default_scroll_format; 1444 int count = 0; 1445 1446 if (page < mNumAppsPages) { 1447 stringId = R.string.apps_customize_apps_scroll_format; 1448 count = mNumAppsPages; 1449 } else { 1450 page -= mNumAppsPages; 1451 stringId = R.string.apps_customize_widgets_scroll_format; 1452 count = mNumWidgetPages; 1453 } 1454 1455 return String.format(mContext.getString(stringId), page + 1, count); 1456 } 1457} 1458