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 17 package com.android.launcher2; 18 19 import android.animation.AnimatorSet; 20 import android.animation.ObjectAnimator; 21 import android.animation.ValueAnimator; 22 import android.appwidget.AppWidgetManager; 23 import android.appwidget.AppWidgetProviderInfo; 24 import android.content.ComponentName; 25 import android.content.Context; 26 import android.content.Intent; 27 import android.content.pm.ActivityInfo; 28 import android.content.pm.PackageManager; 29 import android.content.pm.ResolveInfo; 30 import android.content.res.Configuration; 31 import android.content.res.Resources; 32 import android.content.res.TypedArray; 33 import android.graphics.Bitmap; 34 import android.graphics.Bitmap.Config; 35 import android.graphics.Canvas; 36 import android.graphics.MaskFilter; 37 import android.graphics.Paint; 38 import android.graphics.PorterDuff; 39 import android.graphics.Rect; 40 import android.graphics.RectF; 41 import android.graphics.TableMaskFilter; 42 import android.graphics.drawable.Drawable; 43 import android.os.AsyncTask; 44 import android.os.Process; 45 import android.util.AttributeSet; 46 import android.util.Log; 47 import android.view.Gravity; 48 import android.view.LayoutInflater; 49 import android.view.MotionEvent; 50 import android.view.View; 51 import android.view.ViewGroup; 52 import android.view.animation.AccelerateInterpolator; 53 import android.widget.GridLayout; 54 import android.widget.ImageView; 55 import android.widget.Toast; 56 57 import com.android.launcher.R; 58 import com.android.launcher2.DropTarget.DragObject; 59 60 import java.util.ArrayList; 61 import java.util.Collections; 62 import java.util.Iterator; 63 import java.util.List; 64 65 /** 66 * A simple callback interface which also provides the results of the task. 67 */ 68 interface AsyncTaskCallback { 69 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 70 } 71 72 /** 73 * The data needed to perform either of the custom AsyncTasks. 74 */ 75 class AsyncTaskPageData { 76 enum Type { 77 LoadWidgetPreviewData, 78 LoadHolographicIconsData 79 } 80 81 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 82 AsyncTaskCallback postR) { 83 page = p; 84 items = l; 85 sourceImages = si; 86 generatedImages = new ArrayList<Bitmap>(); 87 cellWidth = cellHeight = -1; 88 doInBackgroundCallback = bgR; 89 postExecuteCallback = postR; 90 } 91 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, int ccx, AsyncTaskCallback bgR, 92 AsyncTaskCallback postR) { 93 page = p; 94 items = l; 95 generatedImages = new ArrayList<Bitmap>(); 96 cellWidth = cw; 97 cellHeight = ch; 98 cellCountX = ccx; 99 doInBackgroundCallback = bgR; 100 postExecuteCallback = postR; 101 } 102 void cleanup(boolean cancelled) { 103 // Clean up any references to source/generated bitmaps 104 if (sourceImages != null) { 105 if (cancelled) { 106 for (Bitmap b : sourceImages) { 107 b.recycle(); 108 } 109 } 110 sourceImages.clear(); 111 } 112 if (generatedImages != null) { 113 if (cancelled) { 114 for (Bitmap b : generatedImages) { 115 b.recycle(); 116 } 117 } 118 generatedImages.clear(); 119 } 120 } 121 int page; 122 ArrayList<Object> items; 123 ArrayList<Bitmap> sourceImages; 124 ArrayList<Bitmap> generatedImages; 125 int cellWidth; 126 int cellHeight; 127 int cellCountX; 128 AsyncTaskCallback doInBackgroundCallback; 129 AsyncTaskCallback postExecuteCallback; 130 } 131 132 /** 133 * A generic template for an async task used in AppsCustomize. 134 */ 135 class 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 */ 170 public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 171 AllAppsView, View.OnClickListener, 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 mWidgetCountX, mWidgetCountY; 209 private int mWidgetWidthGap, mWidgetHeightGap; 210 private final int mWidgetPreviewIconPaddedDimension; 211 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 212 private PagedViewCellLayout mWidgetSpacingLayout; 213 private int mNumAppsPages; 214 private int mNumWidgetPages; 215 216 // Relating to the scroll and overscroll effects 217 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 218 private static float CAMERA_DISTANCE = 6500; 219 private static float TRANSITION_SCALE_FACTOR = 0.74f; 220 private static float TRANSITION_PIVOT = 0.65f; 221 private static float TRANSITION_MAX_ROTATION = 22; 222 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 223 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 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 = LauncherApplication.isScreenLarge(); 269 } 270 271 @Override 272 protected void init() { 273 super.init(); 274 mCenterPagesVertically = true; 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 // We use a custom alpha clip table for the default widget previews 556 Paint alphaClipPaint = null; 557 if (createItemInfo instanceof PendingAddWidgetInfo) { 558 if (((PendingAddWidgetInfo) createItemInfo).hasDefaultPreview) { 559 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 560 alphaClipPaint = new Paint(); 561 alphaClipPaint.setMaskFilter(alphaClipTable); 562 } 563 } 564 565 // Start the drag 566 mLauncher.lockScreenOrientationOnLargeUI(); 567 mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, 568 createItemInfo.spanY, b, alphaClipPaint); 569 mDragController.startDrag(image, b, this, createItemInfo, 570 DragController.DRAG_ACTION_COPY, null); 571 b.recycle(); 572 } 573 @Override 574 protected boolean beginDragging(View v) { 575 // Dismiss the cling 576 mLauncher.dismissAllAppsCling(null); 577 578 if (!super.beginDragging(v)) return false; 579 580 // Go into spring loaded mode (must happen before we startDrag()) 581 mLauncher.enterSpringLoadedDragMode(); 582 583 if (v instanceof PagedViewIcon) { 584 beginDraggingApplication(v); 585 } else if (v instanceof PagedViewWidget) { 586 beginDraggingWidget(v); 587 } 588 return true; 589 } 590 private void endDragging(View target, boolean success) { 591 mLauncher.getWorkspace().onDragStopped(success); 592 if (!success || (target != mLauncher.getWorkspace() && 593 !(target instanceof DeleteDropTarget))) { 594 // Exit spring loaded mode if we have not successfully dropped or have not handled the 595 // drop in Workspace 596 mLauncher.exitSpringLoadedDragMode(); 597 } 598 mLauncher.unlockScreenOrientationOnLargeUI(); 599 600 } 601 602 @Override 603 public void onDropCompleted(View target, DragObject d, boolean success) { 604 endDragging(target, success); 605 606 // Display an error message if the drag failed due to there not being enough space on the 607 // target layout we were dropping on. 608 if (!success) { 609 boolean showOutOfSpaceMessage = false; 610 if (target instanceof Workspace) { 611 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 612 Workspace workspace = (Workspace) target; 613 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 614 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 615 if (layout != null) { 616 layout.calculateSpans(itemInfo); 617 showOutOfSpaceMessage = 618 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 619 } 620 } 621 if (showOutOfSpaceMessage) { 622 mLauncher.showOutOfSpaceMessage(); 623 } 624 } 625 } 626 627 @Override 628 protected void onDetachedFromWindow() { 629 super.onDetachedFromWindow(); 630 cancelAllTasks(); 631 } 632 633 private void cancelAllTasks() { 634 // Clean up all the async tasks 635 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 636 while (iter.hasNext()) { 637 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 638 task.cancel(false); 639 iter.remove(); 640 } 641 } 642 643 public void setContentType(ContentType type) { 644 if (type == ContentType.Widgets) { 645 invalidatePageData(mNumAppsPages, true); 646 } else if (type == ContentType.Applications) { 647 invalidatePageData(0, true); 648 } 649 } 650 651 protected void snapToPage(int whichPage, int delta, int duration) { 652 super.snapToPage(whichPage, delta, duration); 653 updateCurrentTab(whichPage); 654 } 655 656 private void updateCurrentTab(int currentPage) { 657 AppsCustomizeTabHost tabHost = getTabHost(); 658 String tag = tabHost.getCurrentTabTag(); 659 if (tag != null) { 660 if (currentPage >= mNumAppsPages && 661 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 662 tabHost.setCurrentTabFromContent(ContentType.Widgets); 663 } else if (currentPage < mNumAppsPages && 664 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 665 tabHost.setCurrentTabFromContent(ContentType.Applications); 666 } 667 } 668 } 669 670 /* 671 * Apps PagedView implementation 672 */ 673 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 674 int childCount = layout.getChildCount(); 675 for (int i = 0; i < childCount; ++i) { 676 layout.getChildAt(i).setVisibility(visibility); 677 } 678 } 679 private void setupPage(PagedViewCellLayout layout) { 680 layout.setCellCount(mCellCountX, mCellCountY); 681 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 682 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 683 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 684 685 // Note: We force a measure here to get around the fact that when we do layout calculations 686 // immediately after syncing, we don't have a proper width. That said, we already know the 687 // expected page width, so we can actually optimize by hiding all the TextView-based 688 // children that are expensive to measure, and let that happen naturally later. 689 setVisibilityOnChildren(layout, View.GONE); 690 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 691 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 692 layout.setMinimumWidth(getPageContentWidth()); 693 layout.measure(widthSpec, heightSpec); 694 setVisibilityOnChildren(layout, View.VISIBLE); 695 } 696 697 public void syncAppsPageItems(int page, boolean immediate) { 698 // ensure that we have the right number of items on the pages 699 int numCells = mCellCountX * mCellCountY; 700 int startIndex = page * numCells; 701 int endIndex = Math.min(startIndex + numCells, mApps.size()); 702 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 703 704 layout.removeAllViewsOnPage(); 705 ArrayList<Object> items = new ArrayList<Object>(); 706 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 707 for (int i = startIndex; i < endIndex; ++i) { 708 ApplicationInfo info = mApps.get(i); 709 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 710 R.layout.apps_customize_application, layout, false); 711 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 712 icon.setOnClickListener(this); 713 icon.setOnLongClickListener(this); 714 icon.setOnTouchListener(this); 715 716 int index = i - startIndex; 717 int x = index % mCellCountX; 718 int y = index / mCellCountX; 719 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 720 721 items.add(info); 722 images.add(info.iconBitmap); 723 } 724 725 layout.createHardwareLayers(); 726 727 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 728 if (mFadeInAdjacentScreens) { 729 prepareGenerateHoloOutlinesTask(page, items, images); 730 } 731 */ 732 } 733 734 /** 735 * Return the appropriate thread priority for loading for a given page (we give the current 736 * page much higher priority) 737 */ 738 private int getThreadPriorityForPage(int page) { 739 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 740 int pageDiff = Math.abs(page - mCurrentPage); 741 if (pageDiff <= 0) { 742 // return Process.THREAD_PRIORITY_DEFAULT; 743 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 744 } else if (pageDiff <= 1) { 745 // return Process.THREAD_PRIORITY_BACKGROUND; 746 return Process.THREAD_PRIORITY_DEFAULT; 747 } else { 748 // return Process.THREAD_PRIORITY_LOWEST; 749 return Process.THREAD_PRIORITY_DEFAULT; 750 } 751 } 752 private int getSleepForPage(int page) { 753 int pageDiff = Math.abs(page - mCurrentPage) - 1; 754 return Math.max(0, pageDiff * sPageSleepDelay); 755 } 756 /** 757 * Creates and executes a new AsyncTask to load a page of widget previews. 758 */ 759 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 760 int cellWidth, int cellHeight, int cellCountX) { 761 // Prune all tasks that are no longer needed 762 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 763 while (iter.hasNext()) { 764 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 765 int taskPage = task.page; 766 if ((taskPage == page) || 767 taskPage < getAssociatedLowerPageBound(mCurrentPage - mNumAppsPages) || 768 taskPage > getAssociatedUpperPageBound(mCurrentPage - mNumAppsPages)) { 769 task.cancel(false); 770 iter.remove(); 771 } else { 772 task.setThreadPriority(getThreadPriorityForPage(taskPage + mNumAppsPages)); 773 } 774 } 775 776 // We introduce a slight delay to order the loading of side pages so that we don't thrash 777 final int sleepMs = getSleepForPage(page + mNumAppsPages); 778 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 779 cellCountX, new AsyncTaskCallback() { 780 @Override 781 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 782 try { 783 try { 784 Thread.sleep(sleepMs); 785 } catch (Exception e) {} 786 loadWidgetPreviewsInBackground(task, data); 787 } finally { 788 if (task.isCancelled()) { 789 data.cleanup(true); 790 } 791 } 792 } 793 }, 794 new AsyncTaskCallback() { 795 @Override 796 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 797 try { 798 mRunningTasks.remove(task); 799 if (task.isCancelled()) return; 800 onSyncWidgetPageItems(data); 801 } finally { 802 data.cleanup(task.isCancelled()); 803 } 804 } 805 }); 806 807 // Ensure that the task is appropriately prioritized and runs in parallel 808 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 809 AsyncTaskPageData.Type.LoadWidgetPreviewData); 810 t.setThreadPriority(getThreadPriorityForPage(page)); 811 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 812 mRunningTasks.add(t); 813 } 814 /** 815 * Creates and executes a new AsyncTask to load the outlines for a page of content. 816 */ 817 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 818 ArrayList<Bitmap> images) { 819 // Prune old tasks for this page 820 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 821 while (iter.hasNext()) { 822 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 823 int taskPage = task.page; 824 if ((taskPage == page) && 825 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 826 task.cancel(false); 827 iter.remove(); 828 } 829 } 830 831 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 832 new AsyncTaskCallback() { 833 @Override 834 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 835 try { 836 // Ensure that this task starts running at the correct priority 837 task.syncThreadPriority(); 838 839 ArrayList<Bitmap> images = data.generatedImages; 840 ArrayList<Bitmap> srcImages = data.sourceImages; 841 int count = srcImages.size(); 842 Canvas c = new Canvas(); 843 for (int i = 0; i < count && !task.isCancelled(); ++i) { 844 // Before work on each item, ensure that this task is running at the correct 845 // priority 846 task.syncThreadPriority(); 847 848 Bitmap b = srcImages.get(i); 849 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 850 Bitmap.Config.ARGB_8888); 851 852 c.setBitmap(outline); 853 c.save(); 854 c.drawBitmap(b, 0, 0, null); 855 c.restore(); 856 c.setBitmap(null); 857 858 images.add(outline); 859 } 860 } finally { 861 if (task.isCancelled()) { 862 data.cleanup(true); 863 } 864 } 865 } 866 }, 867 new AsyncTaskCallback() { 868 @Override 869 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 870 try { 871 mRunningTasks.remove(task); 872 if (task.isCancelled()) return; 873 onHolographicPageItemsLoaded(data); 874 } finally { 875 data.cleanup(task.isCancelled()); 876 } 877 } 878 }); 879 880 // Ensure that the outline task always runs in the background, serially 881 AppsCustomizeAsyncTask t = 882 new AppsCustomizeAsyncTask(page, AsyncTaskPageData.Type.LoadHolographicIconsData); 883 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 884 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 885 mRunningTasks.add(t); 886 } 887 888 /* 889 * Widgets PagedView implementation 890 */ 891 private void setupPage(PagedViewGridLayout layout) { 892 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 893 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 894 895 // Note: We force a measure here to get around the fact that when we do layout calculations 896 // immediately after syncing, we don't have a proper width. 897 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 898 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 899 layout.setMinimumWidth(getPageContentWidth()); 900 layout.measure(widthSpec, heightSpec); 901 } 902 903 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 904 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 905 } 906 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 907 float scale) { 908 renderDrawableToBitmap(d, bitmap, x, y, w, h, scale, 0xFFFFFFFF); 909 } 910 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 911 float scale, int multiplyColor) { 912 if (bitmap != null) { 913 Canvas c = new Canvas(bitmap); 914 c.scale(scale, scale); 915 Rect oldBounds = d.copyBounds(); 916 d.setBounds(x, y, x + w, y + h); 917 d.draw(c); 918 d.setBounds(oldBounds); // Restore the bounds 919 if (multiplyColor != 0xFFFFFFFF) { 920 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 921 } 922 c.setBitmap(null); 923 } 924 } 925 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 926 // Render the background 927 int offset = 0; 928 int bitmapSize = mAppIconSize; 929 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 930 931 // Render the icon 932 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 933 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 934 return preview; 935 } 936 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 937 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 938 939 // Load the preview image if possible 940 String packageName = info.provider.getPackageName(); 941 Drawable drawable = null; 942 Bitmap preview = null; 943 if (info.previewImage != 0) { 944 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 945 if (drawable == null) { 946 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 947 + " for provider: " + info.provider); 948 } else { 949 // Scale down the preview to something that is closer to the cellWidth/Height 950 int imageWidth = drawable.getIntrinsicWidth(); 951 int imageHeight = drawable.getIntrinsicHeight(); 952 int bitmapWidth = imageWidth; 953 int bitmapHeight = imageHeight; 954 if (imageWidth > imageHeight) { 955 bitmapWidth = cellWidth; 956 bitmapHeight = (int) (imageHeight * ((float) bitmapWidth / imageWidth)); 957 } else { 958 bitmapHeight = cellHeight; 959 bitmapWidth = (int) (imageWidth * ((float) bitmapHeight / imageHeight)); 960 } 961 962 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 963 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 964 } 965 } 966 967 // Generate a preview image if we couldn't load one 968 if (drawable == null) { 969 Resources resources = mLauncher.getResources(); 970 // TODO: This actually uses the apps customize cell layout params, where as we make want 971 // the Workspace params for more accuracy. 972 int targetWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 973 int targetHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 974 int bitmapWidth = targetWidth; 975 int bitmapHeight = targetHeight; 976 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 977 float iconScale = 1f; 978 979 // Determine the size of the bitmap we want to draw 980 if (cellHSpan == cellVSpan) { 981 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 982 if (cellHSpan <= 1) { 983 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 984 } else { 985 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 986 } 987 } else { 988 // Otherwise, ensure that we are properly sized within the cellWidth/Height 989 if (targetWidth > targetHeight) { 990 bitmapWidth = Math.min(targetWidth, cellWidth); 991 bitmapHeight = (int) (targetHeight * ((float) bitmapWidth / targetWidth)); 992 iconScale = Math.min((float) bitmapHeight / (mAppIconSize + 2 * minOffset), 1f); 993 } else { 994 bitmapHeight = Math.min(targetHeight, cellHeight); 995 bitmapWidth = (int) (targetWidth * ((float) bitmapHeight / targetHeight)); 996 iconScale = Math.min((float) bitmapWidth / (mAppIconSize + 2 * minOffset), 1f); 997 } 998 } 999 preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1000 if (cellHSpan != 1 || cellVSpan != 1) { 1001 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1002 bitmapHeight); 1003 } 1004 1005 // Draw the icon in the top left corner 1006 try { 1007 Drawable icon = null; 1008 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1009 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1010 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 1011 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1012 1013 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1014 (int) (mAppIconSize * iconScale), 1015 (int) (mAppIconSize * iconScale)); 1016 } catch (Resources.NotFoundException e) {} 1017 } 1018 return preview; 1019 } 1020 1021 public void syncWidgetPageItems(int page, boolean immediate) { 1022 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1023 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1024 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1025 1026 // Calculate the dimensions of each cell we are giving to each widget 1027 ArrayList<Object> items = new ArrayList<Object>(); 1028 int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1029 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1030 int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1031 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1032 1033 // Prepare the set of widgets to load previews for in the background 1034 int offset = page * numItemsPerPage; 1035 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1036 items.add(mWidgets.get(i)); 1037 } 1038 1039 // Prepopulate the pages with the other widget info, and fill in the previews later 1040 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1041 layout.setColumnCount(layout.getCellCountX()); 1042 for (int i = 0; i < items.size(); ++i) { 1043 Object rawInfo = items.get(i); 1044 PendingAddItemInfo createItemInfo = null; 1045 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1046 R.layout.apps_customize_widget, layout, false); 1047 if (rawInfo instanceof AppWidgetProviderInfo) { 1048 // Fill in the widget information 1049 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1050 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1051 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1052 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans, 1053 mHolographicOutlineHelper); 1054 widget.setTag(createItemInfo); 1055 } else if (rawInfo instanceof ResolveInfo) { 1056 // Fill in the shortcuts information 1057 ResolveInfo info = (ResolveInfo) rawInfo; 1058 createItemInfo = new PendingAddItemInfo(); 1059 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1060 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1061 info.activityInfo.name); 1062 widget.applyFromResolveInfo(mPackageManager, info, mHolographicOutlineHelper); 1063 widget.setTag(createItemInfo); 1064 } 1065 widget.setOnClickListener(this); 1066 widget.setOnLongClickListener(this); 1067 widget.setOnTouchListener(this); 1068 1069 // Layout each widget 1070 int ix = i % mWidgetCountX; 1071 int iy = i / mWidgetCountX; 1072 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1073 GridLayout.spec(iy, GridLayout.LEFT), 1074 GridLayout.spec(ix, GridLayout.TOP)); 1075 lp.width = cellWidth; 1076 lp.height = cellHeight; 1077 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1078 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1079 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1080 layout.addView(widget, lp); 1081 } 1082 1083 // Load the widget previews 1084 if (immediate) { 1085 AsyncTaskPageData data = new AsyncTaskPageData(page, items, cellWidth, cellHeight, 1086 mWidgetCountX, null, null); 1087 loadWidgetPreviewsInBackground(null, data); 1088 onSyncWidgetPageItems(data); 1089 } else { 1090 prepareLoadWidgetPreviewsTask(page, items, cellWidth, cellHeight, mWidgetCountX); 1091 } 1092 } 1093 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1094 AsyncTaskPageData data) { 1095 if (task != null) { 1096 // Ensure that this task starts running at the correct priority 1097 task.syncThreadPriority(); 1098 } 1099 1100 // Load each of the widget/shortcut previews 1101 ArrayList<Object> items = data.items; 1102 ArrayList<Bitmap> images = data.generatedImages; 1103 int count = items.size(); 1104 int cellWidth = data.cellWidth; 1105 int cellHeight = data.cellHeight; 1106 for (int i = 0; i < count; ++i) { 1107 if (task != null) { 1108 // Ensure we haven't been cancelled yet 1109 if (task.isCancelled()) break; 1110 // Before work on each item, ensure that this task is running at the correct 1111 // priority 1112 task.syncThreadPriority(); 1113 } 1114 1115 Object rawInfo = items.get(i); 1116 if (rawInfo instanceof AppWidgetProviderInfo) { 1117 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1118 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1119 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 1120 cellWidth, cellHeight)); 1121 } else if (rawInfo instanceof ResolveInfo) { 1122 // Fill in the shortcuts information 1123 ResolveInfo info = (ResolveInfo) rawInfo; 1124 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 1125 } 1126 } 1127 } 1128 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1129 int page = data.page; 1130 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1131 1132 ArrayList<Object> items = data.items; 1133 int count = items.size(); 1134 for (int i = 0; i < count; ++i) { 1135 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1136 if (widget != null) { 1137 Bitmap preview = data.generatedImages.get(i); 1138 boolean scale = 1139 (preview.getWidth() >= data.cellWidth || 1140 preview.getHeight() >= data.cellHeight); 1141 1142 widget.applyPreview(new FastBitmapDrawable(preview), i, scale); 1143 } 1144 } 1145 layout.createHardwareLayer(); 1146 1147 invalidate(); 1148 forceUpdateAdjacentPagesAlpha(); 1149 1150 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 1151 if (mFadeInAdjacentScreens) { 1152 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 1153 } 1154 */ 1155 } 1156 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 1157 // Invalidate early to short-circuit children invalidates 1158 invalidate(); 1159 1160 int page = data.page; 1161 ViewGroup layout = (ViewGroup) getPageAt(page); 1162 if (layout instanceof PagedViewCellLayout) { 1163 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 1164 int count = cl.getPageChildCount(); 1165 if (count != data.generatedImages.size()) return; 1166 for (int i = 0; i < count; ++i) { 1167 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 1168 icon.setHolographicOutline(data.generatedImages.get(i)); 1169 } 1170 } else { 1171 int count = layout.getChildCount(); 1172 if (count != data.generatedImages.size()) return; 1173 for (int i = 0; i < count; ++i) { 1174 View v = layout.getChildAt(i); 1175 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 1176 } 1177 } 1178 } 1179 1180 @Override 1181 public void syncPages() { 1182 removeAllViews(); 1183 cancelAllTasks(); 1184 1185 Context context = getContext(); 1186 for (int j = 0; j < mNumWidgetPages; ++j) { 1187 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1188 mWidgetCountY); 1189 setupPage(layout); 1190 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1191 LayoutParams.MATCH_PARENT)); 1192 } 1193 1194 for (int i = 0; i < mNumAppsPages; ++i) { 1195 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1196 setupPage(layout); 1197 addView(layout); 1198 } 1199 } 1200 1201 @Override 1202 public void syncPageItems(int page, boolean immediate) { 1203 if (page < mNumAppsPages) { 1204 syncAppsPageItems(page, immediate); 1205 } else { 1206 syncWidgetPageItems(page - mNumAppsPages, immediate); 1207 } 1208 } 1209 1210 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1211 // it is in the z-order. This is important to insure touch events are handled correctly. 1212 View getPageAt(int index) { 1213 return getChildAt(getChildCount() - index - 1); 1214 } 1215 1216 @Override 1217 protected int indexToPage(int index) { 1218 return getChildCount() - index - 1; 1219 } 1220 1221 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1222 @Override 1223 protected void screenScrolled(int screenCenter) { 1224 super.screenScrolled(screenCenter); 1225 1226 for (int i = 0; i < getChildCount(); i++) { 1227 View v = getPageAt(i); 1228 if (v != null) { 1229 float scrollProgress = getScrollProgress(screenCenter, v, i); 1230 1231 float interpolatedProgress = 1232 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1233 float scale = (1 - interpolatedProgress) + 1234 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1235 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1236 1237 float alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1238 1 - Math.abs(scrollProgress)) : 1.0f; 1239 1240 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1241 int pageWidth = v.getMeasuredWidth(); 1242 int pageHeight = v.getMeasuredHeight(); 1243 1244 if (PERFORM_OVERSCROLL_ROTATION) { 1245 if (i == 0 && scrollProgress < 0) { 1246 // Overscroll to the left 1247 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1248 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1249 scale = 1.0f; 1250 alpha = 1.0f; 1251 // On the first page, we don't want the page to have any lateral motion 1252 translationX = getScrollX(); 1253 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1254 // Overscroll to the right 1255 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1256 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1257 scale = 1.0f; 1258 alpha = 1.0f; 1259 // On the last page, we don't want the page to have any lateral motion. 1260 translationX = getScrollX() - mMaxScrollX; 1261 } else { 1262 v.setPivotY(pageHeight / 2.0f); 1263 v.setPivotX(pageWidth / 2.0f); 1264 v.setRotationY(0f); 1265 } 1266 } 1267 1268 v.setTranslationX(translationX); 1269 v.setScaleX(scale); 1270 v.setScaleY(scale); 1271 v.setAlpha(alpha); 1272 } 1273 } 1274 } 1275 1276 protected void overScroll(float amount) { 1277 acceleratedOverScroll(amount); 1278 } 1279 1280 /** 1281 * Used by the parent to get the content width to set the tab bar to 1282 * @return 1283 */ 1284 public int getPageContentWidth() { 1285 return mContentWidth; 1286 } 1287 1288 @Override 1289 protected void onPageEndMoving() { 1290 super.onPageEndMoving(); 1291 1292 // We reset the save index when we change pages so that it will be recalculated on next 1293 // rotation 1294 mSaveInstanceStateItemIndex = -1; 1295 } 1296 1297 /* 1298 * AllAppsView implementation 1299 */ 1300 @Override 1301 public void setup(Launcher launcher, DragController dragController) { 1302 mLauncher = launcher; 1303 mDragController = dragController; 1304 } 1305 @Override 1306 public void zoom(float zoom, boolean animate) { 1307 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1308 } 1309 @Override 1310 public boolean isVisible() { 1311 return (getVisibility() == VISIBLE); 1312 } 1313 @Override 1314 public boolean isAnimating() { 1315 return false; 1316 } 1317 @Override 1318 public void setApps(ArrayList<ApplicationInfo> list) { 1319 mApps = list; 1320 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1321 updatePageCounts(); 1322 1323 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1324 // request a layout to do this test and invalidate the page data when ready. 1325 if (testDataReady()) requestLayout(); 1326 } 1327 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1328 // We add it in place, in alphabetical order 1329 int count = list.size(); 1330 for (int i = 0; i < count; ++i) { 1331 ApplicationInfo info = list.get(i); 1332 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1333 if (index < 0) { 1334 mApps.add(-(index + 1), info); 1335 } 1336 } 1337 } 1338 @Override 1339 public void addApps(ArrayList<ApplicationInfo> list) { 1340 addAppsWithoutInvalidate(list); 1341 updatePageCounts(); 1342 invalidatePageData(); 1343 } 1344 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1345 ComponentName removeComponent = item.intent.getComponent(); 1346 int length = list.size(); 1347 for (int i = 0; i < length; ++i) { 1348 ApplicationInfo info = list.get(i); 1349 if (info.intent.getComponent().equals(removeComponent)) { 1350 return i; 1351 } 1352 } 1353 return -1; 1354 } 1355 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1356 // loop through all the apps and remove apps that have the same component 1357 int length = list.size(); 1358 for (int i = 0; i < length; ++i) { 1359 ApplicationInfo info = list.get(i); 1360 int removeIndex = findAppByComponent(mApps, info); 1361 if (removeIndex > -1) { 1362 mApps.remove(removeIndex); 1363 } 1364 } 1365 } 1366 @Override 1367 public void removeApps(ArrayList<ApplicationInfo> list) { 1368 removeAppsWithoutInvalidate(list); 1369 updatePageCounts(); 1370 invalidatePageData(); 1371 } 1372 @Override 1373 public void updateApps(ArrayList<ApplicationInfo> list) { 1374 // We remove and re-add the updated applications list because it's properties may have 1375 // changed (ie. the title), and this will ensure that the items will be in their proper 1376 // place in the list. 1377 removeAppsWithoutInvalidate(list); 1378 addAppsWithoutInvalidate(list); 1379 updatePageCounts(); 1380 1381 invalidatePageData(); 1382 } 1383 1384 @Override 1385 public void reset() { 1386 AppsCustomizeTabHost tabHost = getTabHost(); 1387 String tag = tabHost.getCurrentTabTag(); 1388 if (tag != null) { 1389 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1390 tabHost.setCurrentTabFromContent(ContentType.Applications); 1391 } 1392 } 1393 if (mCurrentPage != 0) { 1394 invalidatePageData(0); 1395 } 1396 } 1397 1398 private AppsCustomizeTabHost getTabHost() { 1399 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1400 } 1401 1402 @Override 1403 public void dumpState() { 1404 // TODO: Dump information related to current list of Applications, Widgets, etc. 1405 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1406 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1407 } 1408 private void dumpAppWidgetProviderInfoList(String tag, String label, 1409 ArrayList<Object> list) { 1410 Log.d(tag, label + " size=" + list.size()); 1411 for (Object i: list) { 1412 if (i instanceof AppWidgetProviderInfo) { 1413 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1414 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1415 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1416 + " initialLayout=" + info.initialLayout 1417 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1418 } else if (i instanceof ResolveInfo) { 1419 ResolveInfo info = (ResolveInfo) i; 1420 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1421 + info.icon); 1422 } 1423 } 1424 } 1425 @Override 1426 public void surrender() { 1427 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1428 // should stop this now. 1429 1430 // Stop all background tasks 1431 cancelAllTasks(); 1432 } 1433 1434 /* 1435 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1436 * widget previews in the background with the AsyncTasks. 1437 */ 1438 protected int getAssociatedLowerPageBound(int page) { 1439 return Math.max(0, page - 2); 1440 } 1441 protected int getAssociatedUpperPageBound(int page) { 1442 final int count = getChildCount(); 1443 return Math.min(page + 2, count - 1); 1444 } 1445 1446 @Override 1447 protected String getCurrentPageDescription() { 1448 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1449 int stringId = R.string.default_scroll_format; 1450 int count = 0; 1451 1452 if (page < mNumAppsPages) { 1453 stringId = R.string.apps_customize_apps_scroll_format; 1454 count = mNumAppsPages; 1455 } else { 1456 page -= mNumAppsPages; 1457 stringId = R.string.apps_customize_widgets_scroll_format; 1458 count = mNumWidgetPages; 1459 } 1460 1461 return String.format(mContext.getString(stringId), page + 1, count); 1462 } 1463 } 1464
