AppsCustomizePagedView.java revision e326f186af6b00e4ea32849f1527254c669d0600
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher2; 18 19import android.animation.AnimatorSet; 20import android.animation.ObjectAnimator; 21import android.animation.ValueAnimator; 22import android.appwidget.AppWidgetManager; 23import android.appwidget.AppWidgetProviderInfo; 24import android.content.ComponentName; 25import android.content.Context; 26import android.content.Intent; 27import android.content.pm.ActivityInfo; 28import android.content.pm.PackageManager; 29import android.content.pm.ResolveInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.graphics.Bitmap; 34import android.graphics.Bitmap.Config; 35import android.graphics.Canvas; 36import android.graphics.MaskFilter; 37import android.graphics.Paint; 38import android.graphics.PorterDuff; 39import android.graphics.Rect; 40import android.graphics.TableMaskFilter; 41import android.graphics.drawable.Drawable; 42import android.os.AsyncTask; 43import android.os.Process; 44import android.util.AttributeSet; 45import android.util.Log; 46import android.view.Gravity; 47import android.view.KeyEvent; 48import android.view.LayoutInflater; 49import android.view.MotionEvent; 50import android.view.View; 51import android.view.ViewConfiguration; 52import android.view.ViewGroup; 53import android.view.animation.AccelerateInterpolator; 54import android.view.animation.DecelerateInterpolator; 55import android.widget.GridLayout; 56import android.widget.ImageView; 57import android.widget.Toast; 58 59import com.android.launcher.R; 60import com.android.launcher2.DropTarget.DragObject; 61 62import java.util.ArrayList; 63import java.util.Collections; 64import java.util.Iterator; 65import java.util.List; 66 67/** 68 * A simple callback interface which also provides the results of the task. 69 */ 70interface AsyncTaskCallback { 71 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 72} 73 74/** 75 * The data needed to perform either of the custom AsyncTasks. 76 */ 77class AsyncTaskPageData { 78 enum Type { 79 LoadWidgetPreviewData, 80 LoadHolographicIconsData 81 } 82 83 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 84 AsyncTaskCallback postR) { 85 page = p; 86 items = l; 87 sourceImages = si; 88 generatedImages = new ArrayList<Bitmap>(); 89 maxImageWidth = maxImageHeight = -1; 90 doInBackgroundCallback = bgR; 91 postExecuteCallback = postR; 92 } 93 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 94 AsyncTaskCallback postR) { 95 page = p; 96 items = l; 97 generatedImages = new ArrayList<Bitmap>(); 98 maxImageWidth = cw; 99 maxImageHeight = ch; 100 doInBackgroundCallback = bgR; 101 postExecuteCallback = postR; 102 } 103 void cleanup(boolean cancelled) { 104 // Clean up any references to source/generated bitmaps 105 if (sourceImages != null) { 106 if (cancelled) { 107 for (Bitmap b : sourceImages) { 108 b.recycle(); 109 } 110 } 111 sourceImages.clear(); 112 } 113 if (generatedImages != null) { 114 if (cancelled) { 115 for (Bitmap b : generatedImages) { 116 b.recycle(); 117 } 118 } 119 generatedImages.clear(); 120 } 121 } 122 int page; 123 ArrayList<Object> items; 124 ArrayList<Bitmap> sourceImages; 125 ArrayList<Bitmap> generatedImages; 126 int maxImageWidth; 127 int maxImageHeight; 128 AsyncTaskCallback doInBackgroundCallback; 129 AsyncTaskCallback postExecuteCallback; 130} 131 132/** 133 * A generic template for an async task used in AppsCustomize. 134 */ 135class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 136 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 137 page = p; 138 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 139 dataType = ty; 140 } 141 @Override 142 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 143 if (params.length != 1) return null; 144 // Load each of the widget previews in the background 145 params[0].doInBackgroundCallback.run(this, params[0]); 146 return params[0]; 147 } 148 @Override 149 protected void onPostExecute(AsyncTaskPageData result) { 150 // All the widget previews are loaded, so we can just callback to inflate the page 151 result.postExecuteCallback.run(this, result); 152 } 153 154 void setThreadPriority(int p) { 155 threadPriority = p; 156 } 157 void syncThreadPriority() { 158 Process.setThreadPriority(threadPriority); 159 } 160 161 // The page that this async task is associated with 162 AsyncTaskPageData.Type dataType; 163 int page; 164 int threadPriority; 165} 166 167/** 168 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 169 */ 170public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 171 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource { 172 static final String LOG_TAG = "AppsCustomizePagedView"; 173 174 /** 175 * The different content types that this paged view can show. 176 */ 177 public enum ContentType { 178 Applications, 179 Widgets 180 } 181 182 // Refs 183 private Launcher mLauncher; 184 private DragController mDragController; 185 private final LayoutInflater mLayoutInflater; 186 private final PackageManager mPackageManager; 187 188 // Save and Restore 189 private int mSaveInstanceStateItemIndex = -1; 190 191 // Content 192 private ArrayList<ApplicationInfo> mApps; 193 private ArrayList<Object> mWidgets; 194 195 // Cling 196 private boolean mHasShownAllAppsCling; 197 private int mClingFocusedX; 198 private int mClingFocusedY; 199 200 // Caching 201 private Canvas mCanvas; 202 private Drawable mDefaultWidgetBackground; 203 private IconCache mIconCache; 204 private int mDragViewMultiplyColor; 205 206 // Dimens 207 private int mContentWidth; 208 private int mAppIconSize; 209 private int mMaxAppCellCountX, mMaxAppCellCountY; 210 private int mWidgetCountX, mWidgetCountY; 211 private int mWidgetWidthGap, mWidgetHeightGap; 212 private final int mWidgetPreviewIconPaddedDimension; 213 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 214 private PagedViewCellLayout mWidgetSpacingLayout; 215 private int mNumAppsPages; 216 private int mNumWidgetPages; 217 218 // Relating to the scroll and overscroll effects 219 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 220 private static float CAMERA_DISTANCE = 6500; 221 private static float TRANSITION_SCALE_FACTOR = 0.74f; 222 private static float TRANSITION_PIVOT = 0.65f; 223 private static float TRANSITION_MAX_ROTATION = 22; 224 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 225 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 226 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 227 228 // Previews & outlines 229 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 230 private HolographicOutlineHelper mHolographicOutlineHelper; 231 private static final int sPageSleepDelay = 200; 232 233 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 234 super(context, attrs); 235 mLayoutInflater = LayoutInflater.from(context); 236 mPackageManager = context.getPackageManager(); 237 mApps = new ArrayList<ApplicationInfo>(); 238 mWidgets = new ArrayList<Object>(); 239 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 240 mHolographicOutlineHelper = new HolographicOutlineHelper(); 241 mCanvas = new Canvas(); 242 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 243 244 // Save the default widget preview background 245 Resources resources = context.getResources(); 246 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 247 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 248 mDragViewMultiplyColor = resources.getColor(R.color.drag_view_multiply_color); 249 250 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 251 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 252 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 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 if (mMaxAppCellCountX > -1) { 374 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 375 } 376 if (mMaxAppCellCountY > -1) { 377 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 378 } 379 380 // Now that the data is ready, we can calculate the content width, the number of cells to 381 // use for each page 382 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 383 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 384 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 385 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 386 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 387 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 388 updatePageCounts(); 389 390 // Force a measure to update recalculate the gaps 391 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 392 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 393 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 394 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 395 396 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 397 final boolean hostIsTransitioning = host.isTransitioning(); 398 399 // Restore the page 400 int page = getPageForComponent(mSaveInstanceStateItemIndex); 401 invalidatePageData(Math.max(0, page), hostIsTransitioning); 402 403 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 404 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 405 // returned while animating) 406 if (!hostIsTransitioning) { 407 post(new Runnable() { 408 @Override 409 public void run() { 410 showAllAppsCling(); 411 } 412 }); 413 } 414 } 415 416 void showAllAppsCling() { 417 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 418 mHasShownAllAppsCling = true; 419 // Calculate the position for the cling punch through 420 int[] offset = new int[2]; 421 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 422 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 423 // PagedViews are centered horizontally but top aligned 424 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 425 offset[0]; 426 pos[1] += offset[1]; 427 mLauncher.showFirstRunAllAppsCling(pos); 428 } 429 } 430 431 @Override 432 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 433 int width = MeasureSpec.getSize(widthMeasureSpec); 434 int height = MeasureSpec.getSize(heightMeasureSpec); 435 if (!isDataReady()) { 436 if (testDataReady()) { 437 setDataIsReady(); 438 setMeasuredDimension(width, height); 439 onDataReady(width, height); 440 } 441 } 442 443 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 444 } 445 446 /** Removes and returns the ResolveInfo with the specified ComponentName */ 447 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 448 ComponentName cn) { 449 Iterator<ResolveInfo> iter = list.iterator(); 450 while (iter.hasNext()) { 451 ResolveInfo rinfo = iter.next(); 452 ActivityInfo info = rinfo.activityInfo; 453 ComponentName c = new ComponentName(info.packageName, info.name); 454 if (c.equals(cn)) { 455 iter.remove(); 456 return rinfo; 457 } 458 } 459 return null; 460 } 461 462 public void onPackagesUpdated() { 463 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 464 // by a broadcast receiver, and in order for it to work correctly, we need to know that 465 // the AppWidgetService has already received and processed the same broadcast. Since there 466 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 467 // we should have a more precise way of ensuring the AppWidgetService is up to date. 468 postDelayed(new Runnable() { 469 public void run() { 470 updatePackages(); 471 } 472 }, 500); 473 } 474 475 public void updatePackages() { 476 // Get the list of widgets and shortcuts 477 boolean wasEmpty = mWidgets.isEmpty(); 478 mWidgets.clear(); 479 List<AppWidgetProviderInfo> widgets = 480 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 481 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 482 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 483 for (AppWidgetProviderInfo widget : widgets) { 484 if (widget.minWidth > 0 && widget.minHeight > 0) { 485 mWidgets.add(widget); 486 } else { 487 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 488 widget.minWidth + ", " + widget.minHeight + ")"); 489 } 490 } 491 mWidgets.addAll(shortcuts); 492 Collections.sort(mWidgets, 493 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 494 updatePageCounts(); 495 496 if (wasEmpty) { 497 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 498 // a layout to do this test and invalidate the page data when ready. 499 if (testDataReady()) requestLayout(); 500 } else { 501 cancelAllTasks(); 502 invalidatePageData(); 503 } 504 } 505 506 @Override 507 public void onClick(View v) { 508 // When we have exited all apps or are in transition, disregard clicks 509 if (!mLauncher.isAllAppsCustomizeOpen() || 510 mLauncher.getWorkspace().isSwitchingState()) return; 511 512 if (v instanceof PagedViewIcon) { 513 // Animate some feedback to the click 514 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 515 animateClickFeedback(v, new Runnable() { 516 @Override 517 public void run() { 518 mLauncher.startActivitySafely(appInfo.intent, appInfo); 519 } 520 }); 521 } else if (v instanceof PagedViewWidget) { 522 // Let the user know that they have to long press to add a widget 523 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 524 Toast.LENGTH_SHORT).show(); 525 526 // Create a little animation to show that the widget can move 527 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 528 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 529 AnimatorSet bounce = new AnimatorSet(); 530 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 531 tyuAnim.setDuration(125); 532 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 533 tydAnim.setDuration(100); 534 bounce.play(tyuAnim).before(tydAnim); 535 bounce.setInterpolator(new AccelerateInterpolator()); 536 bounce.start(); 537 } 538 } 539 540 public boolean onKey(View v, int keyCode, KeyEvent event) { 541 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 542 } 543 544 /* 545 * PagedViewWithDraggableItems implementation 546 */ 547 @Override 548 protected void determineDraggingStart(android.view.MotionEvent ev) { 549 // Disable dragging by pulling an app down for now. 550 } 551 552 private void beginDraggingApplication(View v) { 553 mLauncher.getWorkspace().onDragStartedWithItem(v); 554 mLauncher.getWorkspace().beginDragShared(v, this); 555 } 556 557 private void beginDraggingWidget(View v) { 558 // Get the widget preview as the drag representation 559 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 560 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 561 562 // Compose the drag image 563 Bitmap b; 564 if (createItemInfo instanceof PendingAddWidgetInfo) { 565 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 566 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 567 createItemInfo.spanX = spanXY[0]; 568 createItemInfo.spanY = spanXY[1]; 569 570 int[] maxSize = mLauncher.getWorkspace().estimateItemSize(spanXY[0], spanXY[1], 571 createWidgetInfo, true); 572 b = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 573 createWidgetInfo.icon, spanXY[0], spanXY[1], maxSize[0], maxSize[1]); 574 } else { 575 // Workaround for the fact that we don't keep the original ResolveInfo associated with 576 // the shortcut around. To get the icon, we just render the preview image (which has 577 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 578 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 579 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 580 Drawable preview = image.getDrawable(); 581 mCanvas.setBitmap(b); 582 mCanvas.save(); 583 preview.draw(mCanvas); 584 mCanvas.restore(); 585 mCanvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 586 mCanvas.setBitmap(null); 587 createItemInfo.spanX = createItemInfo.spanY = 1; 588 } 589 590 // We use a custom alpha clip table for the default widget previews 591 Paint alphaClipPaint = null; 592 if (createItemInfo instanceof PendingAddWidgetInfo) { 593 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 594 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 595 alphaClipPaint = new Paint(); 596 alphaClipPaint.setMaskFilter(alphaClipTable); 597 } 598 } 599 600 // Start the drag 601 mLauncher.lockScreenOrientationOnLargeUI(); 602 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, b, alphaClipPaint); 603 mDragController.startDrag(image, b, this, createItemInfo, 604 DragController.DRAG_ACTION_COPY, null); 605 b.recycle(); 606 } 607 @Override 608 protected boolean beginDragging(View v) { 609 // Dismiss the cling 610 mLauncher.dismissAllAppsCling(null); 611 612 if (!super.beginDragging(v)) return false; 613 614 // Go into spring loaded mode (must happen before we startDrag()) 615 mLauncher.enterSpringLoadedDragMode(); 616 617 if (v instanceof PagedViewIcon) { 618 beginDraggingApplication(v); 619 } else if (v instanceof PagedViewWidget) { 620 beginDraggingWidget(v); 621 } 622 return true; 623 } 624 private void endDragging(View target, boolean success) { 625 mLauncher.getWorkspace().onDragStopped(success); 626 if (!success || (target != mLauncher.getWorkspace() && 627 !(target instanceof DeleteDropTarget))) { 628 // Exit spring loaded mode if we have not successfully dropped or have not handled the 629 // drop in Workspace 630 mLauncher.exitSpringLoadedDragMode(); 631 } 632 mLauncher.unlockScreenOrientationOnLargeUI(); 633 634 } 635 636 @Override 637 public void onDropCompleted(View target, DragObject d, boolean success) { 638 endDragging(target, success); 639 640 // Display an error message if the drag failed due to there not being enough space on the 641 // target layout we were dropping on. 642 if (!success) { 643 boolean showOutOfSpaceMessage = false; 644 if (target instanceof Workspace) { 645 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 646 Workspace workspace = (Workspace) target; 647 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 648 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 649 if (layout != null) { 650 layout.calculateSpans(itemInfo); 651 showOutOfSpaceMessage = 652 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 653 } 654 } 655 if (showOutOfSpaceMessage) { 656 mLauncher.showOutOfSpaceMessage(); 657 } 658 } 659 } 660 661 @Override 662 protected void onDetachedFromWindow() { 663 super.onDetachedFromWindow(); 664 cancelAllTasks(); 665 } 666 667 public void clearAllWidgetPages() { 668 cancelAllTasks(); 669 int count = getChildCount(); 670 for (int i = 0; i < count; i++) { 671 View v = getPageAt(i); 672 if (v instanceof PagedViewGridLayout) { 673 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 674 mDirtyPageContent.set(i, true); 675 } 676 } 677 } 678 679 private void cancelAllTasks() { 680 // Clean up all the async tasks 681 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 682 while (iter.hasNext()) { 683 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 684 task.cancel(false); 685 iter.remove(); 686 } 687 } 688 689 public void setContentType(ContentType type) { 690 if (type == ContentType.Widgets) { 691 invalidatePageData(mNumAppsPages, true); 692 } else if (type == ContentType.Applications) { 693 invalidatePageData(0, true); 694 } 695 } 696 697 protected void snapToPage(int whichPage, int delta, int duration) { 698 super.snapToPage(whichPage, delta, duration); 699 updateCurrentTab(whichPage); 700 701 // Update the thread priorities given the direction lookahead 702 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 703 while (iter.hasNext()) { 704 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 705 int pageIndex = task.page + mNumAppsPages; 706 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 707 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 708 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 709 } else { 710 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 711 } 712 } 713 } 714 715 private void updateCurrentTab(int currentPage) { 716 AppsCustomizeTabHost tabHost = getTabHost(); 717 if (tabHost != null) { 718 String tag = tabHost.getCurrentTabTag(); 719 if (tag != null) { 720 if (currentPage >= mNumAppsPages && 721 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 722 tabHost.setCurrentTabFromContent(ContentType.Widgets); 723 } else if (currentPage < mNumAppsPages && 724 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 725 tabHost.setCurrentTabFromContent(ContentType.Applications); 726 } 727 } 728 } 729 } 730 731 /* 732 * Apps PagedView implementation 733 */ 734 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 735 int childCount = layout.getChildCount(); 736 for (int i = 0; i < childCount; ++i) { 737 layout.getChildAt(i).setVisibility(visibility); 738 } 739 } 740 private void setupPage(PagedViewCellLayout layout) { 741 layout.setCellCount(mCellCountX, mCellCountY); 742 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 743 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 744 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 745 746 // Note: We force a measure here to get around the fact that when we do layout calculations 747 // immediately after syncing, we don't have a proper width. That said, we already know the 748 // expected page width, so we can actually optimize by hiding all the TextView-based 749 // children that are expensive to measure, and let that happen naturally later. 750 setVisibilityOnChildren(layout, View.GONE); 751 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 752 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 753 layout.setMinimumWidth(getPageContentWidth()); 754 layout.measure(widthSpec, heightSpec); 755 setVisibilityOnChildren(layout, View.VISIBLE); 756 } 757 758 public void syncAppsPageItems(int page, boolean immediate) { 759 // ensure that we have the right number of items on the pages 760 int numCells = mCellCountX * mCellCountY; 761 int startIndex = page * numCells; 762 int endIndex = Math.min(startIndex + numCells, mApps.size()); 763 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 764 765 layout.removeAllViewsOnPage(); 766 ArrayList<Object> items = new ArrayList<Object>(); 767 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 768 for (int i = startIndex; i < endIndex; ++i) { 769 ApplicationInfo info = mApps.get(i); 770 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 771 R.layout.apps_customize_application, layout, false); 772 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 773 icon.setOnClickListener(this); 774 icon.setOnLongClickListener(this); 775 icon.setOnTouchListener(this); 776 icon.setOnKeyListener(this); 777 778 int index = i - startIndex; 779 int x = index % mCellCountX; 780 int y = index / mCellCountX; 781 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 782 783 items.add(info); 784 images.add(info.iconBitmap); 785 } 786 787 layout.createHardwareLayers(); 788 789 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 790 if (mFadeInAdjacentScreens) { 791 prepareGenerateHoloOutlinesTask(page, items, images); 792 } 793 */ 794 } 795 796 /** 797 * A helper to return the priority for loading of the specified widget page. 798 */ 799 private int getWidgetPageLoadPriority(int page) { 800 // If we are snapping to another page, use that index as the target page index 801 int toPage = mCurrentPage; 802 if (mNextPage > -1) { 803 toPage = mNextPage; 804 } 805 806 // We use the distance from the target page as an initial guess of priority, but if there 807 // are no pages of higher priority than the page specified, then bump up the priority of 808 // the specified page. 809 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 810 int minPageDiff = Integer.MAX_VALUE; 811 while (iter.hasNext()) { 812 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 813 minPageDiff = Math.abs(task.page + mNumAppsPages - toPage); 814 } 815 816 int rawPageDiff = Math.abs(page - toPage); 817 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 818 } 819 /** 820 * Return the appropriate thread priority for loading for a given page (we give the current 821 * page much higher priority) 822 */ 823 private int getThreadPriorityForPage(int page) { 824 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 825 int pageDiff = getWidgetPageLoadPriority(page); 826 if (pageDiff <= 0) { 827 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 828 } else if (pageDiff <= 1) { 829 return Process.THREAD_PRIORITY_LOWEST; 830 } else { 831 return Process.THREAD_PRIORITY_LOWEST; 832 } 833 } 834 private int getSleepForPage(int page) { 835 int pageDiff = getWidgetPageLoadPriority(page); 836 return Math.max(0, pageDiff * sPageSleepDelay); 837 } 838 /** 839 * Creates and executes a new AsyncTask to load a page of widget previews. 840 */ 841 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 842 int cellWidth, int cellHeight, int cellCountX) { 843 844 // Prune all tasks that are no longer needed 845 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 846 while (iter.hasNext()) { 847 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 848 int taskPage = task.page + mNumAppsPages; 849 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 850 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 851 task.cancel(false); 852 iter.remove(); 853 } else { 854 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 855 } 856 } 857 858 // We introduce a slight delay to order the loading of side pages so that we don't thrash 859 final int sleepMs = getSleepForPage(page + mNumAppsPages); 860 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 861 new AsyncTaskCallback() { 862 @Override 863 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 864 try { 865 try { 866 Thread.sleep(sleepMs); 867 } catch (Exception e) {} 868 loadWidgetPreviewsInBackground(task, data); 869 } finally { 870 if (task.isCancelled()) { 871 data.cleanup(true); 872 } 873 } 874 } 875 }, 876 new AsyncTaskCallback() { 877 @Override 878 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 879 try { 880 mRunningTasks.remove(task); 881 if (task.isCancelled()) return; 882 onSyncWidgetPageItems(data); 883 } finally { 884 data.cleanup(task.isCancelled()); 885 } 886 } 887 }); 888 889 // Ensure that the task is appropriately prioritized and runs in parallel 890 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 891 AsyncTaskPageData.Type.LoadWidgetPreviewData); 892 t.setThreadPriority(getThreadPriorityForPage(page + mNumAppsPages)); 893 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 894 mRunningTasks.add(t); 895 } 896 /** 897 * Creates and executes a new AsyncTask to load the outlines for a page of content. 898 */ 899 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 900 ArrayList<Bitmap> images) { 901 // Prune old tasks for this page 902 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 903 while (iter.hasNext()) { 904 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 905 int taskPage = task.page; 906 if ((taskPage == page) && 907 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 908 task.cancel(false); 909 iter.remove(); 910 } 911 } 912 913 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 914 new AsyncTaskCallback() { 915 @Override 916 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 917 try { 918 // Ensure that this task starts running at the correct priority 919 task.syncThreadPriority(); 920 921 ArrayList<Bitmap> images = data.generatedImages; 922 ArrayList<Bitmap> srcImages = data.sourceImages; 923 int count = srcImages.size(); 924 Canvas c = new Canvas(); 925 for (int i = 0; i < count && !task.isCancelled(); ++i) { 926 // Before work on each item, ensure that this task is running at the correct 927 // priority 928 task.syncThreadPriority(); 929 930 Bitmap b = srcImages.get(i); 931 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 932 Bitmap.Config.ARGB_8888); 933 934 c.setBitmap(outline); 935 c.save(); 936 c.drawBitmap(b, 0, 0, null); 937 c.restore(); 938 c.setBitmap(null); 939 940 images.add(outline); 941 } 942 } finally { 943 if (task.isCancelled()) { 944 data.cleanup(true); 945 } 946 } 947 } 948 }, 949 new AsyncTaskCallback() { 950 @Override 951 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 952 try { 953 mRunningTasks.remove(task); 954 if (task.isCancelled()) return; 955 onHolographicPageItemsLoaded(data); 956 } finally { 957 data.cleanup(task.isCancelled()); 958 } 959 } 960 }); 961 962 // Ensure that the outline task always runs in the background, serially 963 AppsCustomizeAsyncTask t = 964 new AppsCustomizeAsyncTask(page, AsyncTaskPageData.Type.LoadHolographicIconsData); 965 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 966 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 967 mRunningTasks.add(t); 968 } 969 970 /* 971 * Widgets PagedView implementation 972 */ 973 private void setupPage(PagedViewGridLayout layout) { 974 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 975 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 976 977 // Note: We force a measure here to get around the fact that when we do layout calculations 978 // immediately after syncing, we don't have a proper width. 979 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 980 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 981 layout.setMinimumWidth(getPageContentWidth()); 982 layout.measure(widthSpec, heightSpec); 983 } 984 985 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 986 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 987 } 988 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 989 float scale) { 990 renderDrawableToBitmap(d, bitmap, x, y, w, h, scale, 0xFFFFFFFF); 991 } 992 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 993 float scale, int multiplyColor) { 994 if (bitmap != null) { 995 Canvas c = new Canvas(bitmap); 996 c.scale(scale, scale); 997 Rect oldBounds = d.copyBounds(); 998 d.setBounds(x, y, x + w, y + h); 999 d.draw(c); 1000 d.setBounds(oldBounds); // Restore the bounds 1001 if (multiplyColor != 0xFFFFFFFF) { 1002 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 1003 } 1004 c.setBitmap(null); 1005 } 1006 } 1007 private Bitmap getShortcutPreview(ResolveInfo info) { 1008 // Render the background 1009 int offset = 0; 1010 int bitmapSize = mAppIconSize; 1011 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1012 1013 // Render the icon 1014 Drawable icon = mIconCache.getFullResIcon(info); 1015 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1016 return preview; 1017 } 1018 1019 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1020 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1021 // Load the preview image if possible 1022 String packageName = provider.getPackageName(); 1023 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1024 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1025 1026 Drawable drawable = null; 1027 if (previewImage != 0) { 1028 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1029 if (drawable == null) { 1030 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1031 Integer.toHexString(previewImage) + " for provider: " + provider); 1032 } 1033 } 1034 1035 int bitmapWidth; 1036 int bitmapHeight; 1037 boolean widgetPreviewExists = (drawable != null); 1038 if (widgetPreviewExists) { 1039 bitmapWidth = drawable.getIntrinsicWidth(); 1040 bitmapHeight = drawable.getIntrinsicHeight(); 1041 1042 // Cap the size so widget previews don't appear larger than the actual widget 1043 maxWidth = Math.min(maxWidth, mWidgetSpacingLayout.estimateCellWidth(cellHSpan)); 1044 maxHeight = Math.min(maxHeight, mWidgetSpacingLayout.estimateCellHeight(cellVSpan)); 1045 } else { 1046 // Determine the size of the bitmap for the preview image we will generate 1047 // TODO: This actually uses the apps customize cell layout params, where as we make want 1048 // the Workspace params for more accuracy. 1049 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1050 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1051 if (cellHSpan == cellVSpan) { 1052 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1053 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1054 if (cellHSpan <= 1) { 1055 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1056 } else { 1057 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1058 } 1059 } 1060 } 1061 1062 float scale = 1f; 1063 if (bitmapWidth > maxWidth) { 1064 scale = maxWidth / (float) bitmapWidth; 1065 } 1066 if (bitmapHeight * scale > maxHeight) { 1067 scale = maxHeight / (float) bitmapHeight; 1068 } 1069 if (scale != 1f) { 1070 bitmapWidth = (int) (scale * bitmapWidth); 1071 bitmapHeight = (int) (scale * bitmapHeight); 1072 } 1073 1074 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1075 1076 if (widgetPreviewExists) { 1077 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1078 } else { 1079 // Generate a preview image if we couldn't load one 1080 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1081 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1082 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1083 if (cellHSpan != 1 || cellVSpan != 1) { 1084 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1085 bitmapHeight); 1086 } 1087 1088 // Draw the icon in the top left corner 1089 try { 1090 Drawable icon = null; 1091 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1092 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1093 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1094 Resources resources = mLauncher.getResources(); 1095 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1096 1097 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1098 (int) (mAppIconSize * iconScale), 1099 (int) (mAppIconSize * iconScale)); 1100 } catch (Resources.NotFoundException e) {} 1101 } 1102 return preview; 1103 } 1104 1105 public void syncWidgetPageItems(final int page, final boolean immediate) { 1106 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1107 1108 // Calculate the dimensions of each cell we are giving to each widget 1109 final ArrayList<Object> items = new ArrayList<Object>(); 1110 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1111 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1112 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1113 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1114 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1115 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1116 1117 // Prepare the set of widgets to load previews for in the background 1118 int offset = page * numItemsPerPage; 1119 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1120 items.add(mWidgets.get(i)); 1121 } 1122 1123 // Prepopulate the pages with the other widget info, and fill in the previews later 1124 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1125 layout.setColumnCount(layout.getCellCountX()); 1126 for (int i = 0; i < items.size(); ++i) { 1127 Object rawInfo = items.get(i); 1128 PendingAddItemInfo createItemInfo = null; 1129 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1130 R.layout.apps_customize_widget, layout, false); 1131 if (rawInfo instanceof AppWidgetProviderInfo) { 1132 // Fill in the widget information 1133 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1134 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1135 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1136 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans, 1137 mHolographicOutlineHelper); 1138 widget.setTag(createItemInfo); 1139 } else if (rawInfo instanceof ResolveInfo) { 1140 // Fill in the shortcuts information 1141 ResolveInfo info = (ResolveInfo) rawInfo; 1142 createItemInfo = new PendingAddItemInfo(); 1143 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1144 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1145 info.activityInfo.name); 1146 widget.applyFromResolveInfo(mPackageManager, info, mHolographicOutlineHelper); 1147 widget.setTag(createItemInfo); 1148 } 1149 widget.setOnClickListener(this); 1150 widget.setOnLongClickListener(this); 1151 widget.setOnTouchListener(this); 1152 widget.setOnKeyListener(this); 1153 1154 // Layout each widget 1155 int ix = i % mWidgetCountX; 1156 int iy = i / mWidgetCountX; 1157 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1158 GridLayout.spec(iy, GridLayout.LEFT), 1159 GridLayout.spec(ix, GridLayout.TOP)); 1160 lp.width = cellWidth; 1161 lp.height = cellHeight; 1162 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1163 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1164 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1165 layout.addView(widget, lp); 1166 } 1167 1168 // wait until a call on onLayout to start loading, because 1169 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1170 // TODO: can we do a measure/layout immediately? 1171 layout.setOnLayoutListener(new Runnable() { 1172 public void run() { 1173 // Load the widget previews 1174 int maxPreviewWidth = cellWidth; 1175 int maxPreviewHeight = cellHeight; 1176 if (layout.getChildCount() > 0) { 1177 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1178 int[] maxSize = w.getPreviewSize(); 1179 maxPreviewWidth = maxSize[0]; 1180 maxPreviewHeight = maxSize[1]; 1181 } 1182 if (immediate) { 1183 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1184 maxPreviewWidth, maxPreviewHeight, null, null); 1185 loadWidgetPreviewsInBackground(null, data); 1186 onSyncWidgetPageItems(data); 1187 } else { 1188 prepareLoadWidgetPreviewsTask(page, items, 1189 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1190 } 1191 } 1192 }); 1193 } 1194 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1195 AsyncTaskPageData data) { 1196 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1197 // previews synchronously 1198 if (task != null) { 1199 // Ensure that this task starts running at the correct priority 1200 task.syncThreadPriority(); 1201 } 1202 1203 // Load each of the widget/shortcut previews 1204 ArrayList<Object> items = data.items; 1205 ArrayList<Bitmap> images = data.generatedImages; 1206 int count = items.size(); 1207 for (int i = 0; i < count; ++i) { 1208 if (task != null) { 1209 // Ensure we haven't been cancelled yet 1210 if (task.isCancelled()) break; 1211 // Before work on each item, ensure that this task is running at the correct 1212 // priority 1213 task.syncThreadPriority(); 1214 } 1215 1216 Object rawInfo = items.get(i); 1217 if (rawInfo instanceof AppWidgetProviderInfo) { 1218 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1219 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1220 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1221 cellSpans[0], cellSpans[1], data.maxImageWidth, data.maxImageHeight); 1222 images.add(b); 1223 } else if (rawInfo instanceof ResolveInfo) { 1224 // Fill in the shortcuts information 1225 ResolveInfo info = (ResolveInfo) rawInfo; 1226 images.add(getShortcutPreview(info)); 1227 } 1228 } 1229 } 1230 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1231 int page = data.page; 1232 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1233 1234 ArrayList<Object> items = data.items; 1235 int count = items.size(); 1236 for (int i = 0; i < count; ++i) { 1237 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1238 if (widget != null) { 1239 Bitmap preview = data.generatedImages.get(i); 1240 widget.applyPreview(new FastBitmapDrawable(preview), i); 1241 } 1242 } 1243 1244 layout.createHardwareLayer(); 1245 invalidate(); 1246 1247 /* TEMPORARILY DISABLE HOLOGRAPHIC ICONS 1248 if (mFadeInAdjacentScreens) { 1249 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 1250 } 1251 */ 1252 1253 // Update all thread priorities 1254 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1255 while (iter.hasNext()) { 1256 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1257 int pageIndex = task.page + mNumAppsPages; 1258 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1259 } 1260 } 1261 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 1262 // Invalidate early to short-circuit children invalidates 1263 invalidate(); 1264 1265 int page = data.page; 1266 ViewGroup layout = (ViewGroup) getPageAt(page); 1267 if (layout instanceof PagedViewCellLayout) { 1268 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 1269 int count = cl.getPageChildCount(); 1270 if (count != data.generatedImages.size()) return; 1271 for (int i = 0; i < count; ++i) { 1272 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 1273 icon.setHolographicOutline(data.generatedImages.get(i)); 1274 } 1275 } else { 1276 int count = layout.getChildCount(); 1277 if (count != data.generatedImages.size()) return; 1278 for (int i = 0; i < count; ++i) { 1279 View v = layout.getChildAt(i); 1280 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 1281 } 1282 } 1283 } 1284 1285 @Override 1286 public void syncPages() { 1287 removeAllViews(); 1288 cancelAllTasks(); 1289 1290 Context context = getContext(); 1291 for (int j = 0; j < mNumWidgetPages; ++j) { 1292 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1293 mWidgetCountY); 1294 setupPage(layout); 1295 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1296 LayoutParams.MATCH_PARENT)); 1297 } 1298 1299 for (int i = 0; i < mNumAppsPages; ++i) { 1300 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1301 setupPage(layout); 1302 addView(layout); 1303 } 1304 } 1305 1306 @Override 1307 public void syncPageItems(int page, boolean immediate) { 1308 if (page < mNumAppsPages) { 1309 syncAppsPageItems(page, immediate); 1310 } else { 1311 syncWidgetPageItems(page - mNumAppsPages, immediate); 1312 } 1313 } 1314 1315 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1316 // it is in the z-order. This is important to insure touch events are handled correctly. 1317 View getPageAt(int index) { 1318 return getChildAt(getChildCount() - index - 1); 1319 } 1320 1321 @Override 1322 protected int indexToPage(int index) { 1323 return getChildCount() - index - 1; 1324 } 1325 1326 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1327 @Override 1328 protected void screenScrolled(int screenCenter) { 1329 super.screenScrolled(screenCenter); 1330 1331 for (int i = 0; i < getChildCount(); i++) { 1332 View v = getPageAt(i); 1333 if (v != null) { 1334 float scrollProgress = getScrollProgress(screenCenter, v, i); 1335 1336 float interpolatedProgress = 1337 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1338 float scale = (1 - interpolatedProgress) + 1339 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1340 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1341 1342 float alpha; 1343 1344 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1345 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1346 1 - Math.abs(scrollProgress)) : 1.0f; 1347 } else { 1348 // On large screens we need to fade the page as it nears its leftmost position 1349 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1350 } 1351 1352 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1353 int pageWidth = v.getMeasuredWidth(); 1354 int pageHeight = v.getMeasuredHeight(); 1355 1356 if (PERFORM_OVERSCROLL_ROTATION) { 1357 if (i == 0 && scrollProgress < 0) { 1358 // Overscroll to the left 1359 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1360 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1361 scale = 1.0f; 1362 alpha = 1.0f; 1363 // On the first page, we don't want the page to have any lateral motion 1364 translationX = 0; 1365 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1366 // Overscroll to the right 1367 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1368 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1369 scale = 1.0f; 1370 alpha = 1.0f; 1371 // On the last page, we don't want the page to have any lateral motion. 1372 translationX = 0; 1373 } else { 1374 v.setPivotY(pageHeight / 2.0f); 1375 v.setPivotX(pageWidth / 2.0f); 1376 v.setRotationY(0f); 1377 } 1378 } 1379 1380 v.setTranslationX(translationX); 1381 v.setScaleX(scale); 1382 v.setScaleY(scale); 1383 v.setAlpha(alpha); 1384 1385 // If the view has 0 alpha, we set it to be invisible so as to prevent 1386 // it from accepting touches 1387 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1388 v.setVisibility(INVISIBLE); 1389 } else if (v.getVisibility() != VISIBLE) { 1390 v.setVisibility(VISIBLE); 1391 } 1392 } 1393 } 1394 } 1395 1396 protected void overScroll(float amount) { 1397 acceleratedOverScroll(amount); 1398 } 1399 1400 /** 1401 * Used by the parent to get the content width to set the tab bar to 1402 * @return 1403 */ 1404 public int getPageContentWidth() { 1405 return mContentWidth; 1406 } 1407 1408 @Override 1409 protected void onPageEndMoving() { 1410 super.onPageEndMoving(); 1411 1412 // We reset the save index when we change pages so that it will be recalculated on next 1413 // rotation 1414 mSaveInstanceStateItemIndex = -1; 1415 } 1416 1417 /* 1418 * AllAppsView implementation 1419 */ 1420 @Override 1421 public void setup(Launcher launcher, DragController dragController) { 1422 mLauncher = launcher; 1423 mDragController = dragController; 1424 } 1425 @Override 1426 public void zoom(float zoom, boolean animate) { 1427 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1428 } 1429 @Override 1430 public boolean isVisible() { 1431 return (getVisibility() == VISIBLE); 1432 } 1433 @Override 1434 public boolean isAnimating() { 1435 return false; 1436 } 1437 @Override 1438 public void setApps(ArrayList<ApplicationInfo> list) { 1439 mApps = list; 1440 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1441 updatePageCounts(); 1442 1443 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1444 // request a layout to do this test and invalidate the page data when ready. 1445 if (testDataReady()) requestLayout(); 1446 } 1447 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1448 // We add it in place, in alphabetical order 1449 int count = list.size(); 1450 for (int i = 0; i < count; ++i) { 1451 ApplicationInfo info = list.get(i); 1452 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1453 if (index < 0) { 1454 mApps.add(-(index + 1), info); 1455 } 1456 } 1457 } 1458 @Override 1459 public void addApps(ArrayList<ApplicationInfo> list) { 1460 addAppsWithoutInvalidate(list); 1461 updatePageCounts(); 1462 invalidatePageData(); 1463 } 1464 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1465 ComponentName removeComponent = item.intent.getComponent(); 1466 int length = list.size(); 1467 for (int i = 0; i < length; ++i) { 1468 ApplicationInfo info = list.get(i); 1469 if (info.intent.getComponent().equals(removeComponent)) { 1470 return i; 1471 } 1472 } 1473 return -1; 1474 } 1475 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1476 // loop through all the apps and remove apps that have the same component 1477 int length = list.size(); 1478 for (int i = 0; i < length; ++i) { 1479 ApplicationInfo info = list.get(i); 1480 int removeIndex = findAppByComponent(mApps, info); 1481 if (removeIndex > -1) { 1482 mApps.remove(removeIndex); 1483 } 1484 } 1485 } 1486 @Override 1487 public void removeApps(ArrayList<ApplicationInfo> list) { 1488 removeAppsWithoutInvalidate(list); 1489 updatePageCounts(); 1490 invalidatePageData(); 1491 } 1492 @Override 1493 public void updateApps(ArrayList<ApplicationInfo> list) { 1494 // We remove and re-add the updated applications list because it's properties may have 1495 // changed (ie. the title), and this will ensure that the items will be in their proper 1496 // place in the list. 1497 removeAppsWithoutInvalidate(list); 1498 addAppsWithoutInvalidate(list); 1499 updatePageCounts(); 1500 1501 invalidatePageData(); 1502 } 1503 1504 @Override 1505 public void reset() { 1506 AppsCustomizeTabHost tabHost = getTabHost(); 1507 String tag = tabHost.getCurrentTabTag(); 1508 if (tag != null) { 1509 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1510 tabHost.setCurrentTabFromContent(ContentType.Applications); 1511 } 1512 } 1513 if (mCurrentPage != 0) { 1514 invalidatePageData(0); 1515 } 1516 } 1517 1518 private AppsCustomizeTabHost getTabHost() { 1519 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1520 } 1521 1522 @Override 1523 public void dumpState() { 1524 // TODO: Dump information related to current list of Applications, Widgets, etc. 1525 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1526 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1527 } 1528 1529 private void dumpAppWidgetProviderInfoList(String tag, String label, 1530 ArrayList<Object> list) { 1531 Log.d(tag, label + " size=" + list.size()); 1532 for (Object i: list) { 1533 if (i instanceof AppWidgetProviderInfo) { 1534 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1535 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1536 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1537 + " initialLayout=" + info.initialLayout 1538 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1539 } else if (i instanceof ResolveInfo) { 1540 ResolveInfo info = (ResolveInfo) i; 1541 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1542 + info.icon); 1543 } 1544 } 1545 } 1546 1547 @Override 1548 public void surrender() { 1549 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1550 // should stop this now. 1551 1552 // Stop all background tasks 1553 cancelAllTasks(); 1554 } 1555 1556 1557 /* 1558 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1559 * widget previews in the background with the AsyncTasks. 1560 */ 1561 final static int sLookBehindPageCount = 2; 1562 final static int sLookAheadPageCount = 2; 1563 protected int getAssociatedLowerPageBound(int page) { 1564 final int count = getChildCount(); 1565 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1566 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1567 return windowMinIndex; 1568 } 1569 protected int getAssociatedUpperPageBound(int page) { 1570 final int count = getChildCount(); 1571 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1572 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1573 count - 1); 1574 return windowMaxIndex; 1575 } 1576 1577 @Override 1578 protected String getCurrentPageDescription() { 1579 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1580 int stringId = R.string.default_scroll_format; 1581 int count = 0; 1582 1583 if (page < mNumAppsPages) { 1584 stringId = R.string.apps_customize_apps_scroll_format; 1585 count = mNumAppsPages; 1586 } else { 1587 page -= mNumAppsPages; 1588 stringId = R.string.apps_customize_widgets_scroll_format; 1589 count = mNumWidgetPages; 1590 } 1591 1592 return String.format(mContext.getString(stringId), page + 1, count); 1593 } 1594} 1595