AppsCustomizePagedView.java revision 42c29aedf2b518c4317fc534f3c87711b57bc9b5
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.PackageManager; 28import android.content.pm.ResolveInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.content.res.TypedArray; 32import android.graphics.Bitmap; 33import android.graphics.Bitmap.Config; 34import android.graphics.Canvas; 35import android.graphics.MaskFilter; 36import android.graphics.Paint; 37import android.graphics.PorterDuff; 38import android.graphics.Rect; 39import android.graphics.TableMaskFilter; 40import android.graphics.drawable.Drawable; 41import android.os.AsyncTask; 42import android.os.Process; 43import android.util.AttributeSet; 44import android.util.Log; 45import android.view.Gravity; 46import android.view.KeyEvent; 47import android.view.LayoutInflater; 48import android.view.MotionEvent; 49import android.view.View; 50import android.view.ViewConfiguration; 51import android.view.ViewGroup; 52import android.view.animation.AccelerateInterpolator; 53import android.view.animation.DecelerateInterpolator; 54import android.widget.GridLayout; 55import android.widget.ImageView; 56import android.widget.Toast; 57 58import com.android.launcher.R; 59import com.android.launcher2.DropTarget.DragObject; 60 61import java.util.ArrayList; 62import java.util.Collections; 63import java.util.Iterator; 64import java.util.List; 65 66/** 67 * A simple callback interface which also provides the results of the task. 68 */ 69interface AsyncTaskCallback { 70 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 71} 72 73/** 74 * The data needed to perform either of the custom AsyncTasks. 75 */ 76class AsyncTaskPageData { 77 enum Type { 78 LoadWidgetPreviewData 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 maxImageWidth = maxImageHeight = -1; 88 doInBackgroundCallback = bgR; 89 postExecuteCallback = postR; 90 } 91 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 92 AsyncTaskCallback postR) { 93 page = p; 94 items = l; 95 generatedImages = new ArrayList<Bitmap>(); 96 maxImageWidth = cw; 97 maxImageHeight = ch; 98 doInBackgroundCallback = bgR; 99 postExecuteCallback = postR; 100 } 101 void cleanup(boolean cancelled) { 102 // Clean up any references to source/generated bitmaps 103 if (sourceImages != null) { 104 if (cancelled) { 105 for (Bitmap b : sourceImages) { 106 b.recycle(); 107 } 108 } 109 sourceImages.clear(); 110 } 111 if (generatedImages != null) { 112 if (cancelled) { 113 for (Bitmap b : generatedImages) { 114 b.recycle(); 115 } 116 } 117 generatedImages.clear(); 118 } 119 } 120 int page; 121 ArrayList<Object> items; 122 ArrayList<Bitmap> sourceImages; 123 ArrayList<Bitmap> generatedImages; 124 int maxImageWidth; 125 int maxImageHeight; 126 AsyncTaskCallback doInBackgroundCallback; 127 AsyncTaskCallback postExecuteCallback; 128} 129 130/** 131 * A generic template for an async task used in AppsCustomize. 132 */ 133class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 134 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 135 page = p; 136 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 137 dataType = ty; 138 } 139 @Override 140 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 141 if (params.length != 1) return null; 142 // Load each of the widget previews in the background 143 params[0].doInBackgroundCallback.run(this, params[0]); 144 return params[0]; 145 } 146 @Override 147 protected void onPostExecute(AsyncTaskPageData result) { 148 // All the widget previews are loaded, so we can just callback to inflate the page 149 result.postExecuteCallback.run(this, result); 150 } 151 152 void setThreadPriority(int p) { 153 threadPriority = p; 154 } 155 void syncThreadPriority() { 156 Process.setThreadPriority(threadPriority); 157 } 158 159 // The page that this async task is associated with 160 AsyncTaskPageData.Type dataType; 161 int page; 162 int threadPriority; 163} 164 165/** 166 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 167 */ 168public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 169 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource, 170 PagedViewIcon.PressedCallback { 171 static final String LOG_TAG = "AppsCustomizePagedView"; 172 173 /** 174 * The different content types that this paged view can show. 175 */ 176 public enum ContentType { 177 Applications, 178 Widgets 179 } 180 181 // Refs 182 private Launcher mLauncher; 183 private DragController mDragController; 184 private final LayoutInflater mLayoutInflater; 185 private final PackageManager mPackageManager; 186 187 // Save and Restore 188 private int mSaveInstanceStateItemIndex = -1; 189 private PagedViewIcon mPressedIcon; 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; 204 205 // Dimens 206 private int mContentWidth; 207 private int mAppIconSize; 208 private int mMaxAppCellCountX, mMaxAppCellCountY; 209 private int mWidgetCountX, mWidgetCountY; 210 private int mWidgetWidthGap, mWidgetHeightGap; 211 private final int mWidgetPreviewIconPaddedDimension; 212 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 213 private PagedViewCellLayout mWidgetSpacingLayout; 214 private int mNumAppsPages; 215 private int mNumWidgetPages; 216 217 // Relating to the scroll and overscroll effects 218 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 219 private static float CAMERA_DISTANCE = 6500; 220 private static float TRANSITION_SCALE_FACTOR = 0.74f; 221 private static float TRANSITION_PIVOT = 0.65f; 222 private static float TRANSITION_MAX_ROTATION = 22; 223 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 224 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 225 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 226 227 // Previews & outlines 228 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 229 private static final int sPageSleepDelay = 200; 230 231 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 232 super(context, attrs); 233 mLayoutInflater = LayoutInflater.from(context); 234 mPackageManager = context.getPackageManager(); 235 mApps = new ArrayList<ApplicationInfo>(); 236 mWidgets = new ArrayList<Object>(); 237 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 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); 245 246 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 247 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 248 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 249 mWidgetWidthGap = 250 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 251 mWidgetHeightGap = 252 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 253 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 254 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 255 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 256 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 257 a.recycle(); 258 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 259 260 // The padding on the non-matched dimension for the default widget preview icons 261 // (top + bottom) 262 mWidgetPreviewIconPaddedDimension = 263 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 264 mFadeInAdjacentScreens = false; 265 } 266 267 @Override 268 protected void init() { 269 super.init(); 270 mCenterPagesVertically = false; 271 272 Context context = getContext(); 273 Resources r = context.getResources(); 274 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 275 } 276 277 @Override 278 protected void onUnhandledTap(MotionEvent ev) { 279 if (LauncherApplication.isScreenLarge()) { 280 // Dismiss AppsCustomize if we tap 281 mLauncher.showWorkspace(true); 282 } 283 } 284 285 /** Returns the item index of the center item on this page so that we can restore to this 286 * item index when we rotate. */ 287 private int getMiddleComponentIndexOnCurrentPage() { 288 int i = -1; 289 if (getPageCount() > 0) { 290 int currentPage = getCurrentPage(); 291 if (currentPage < mNumAppsPages) { 292 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 293 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 294 int numItemsPerPage = mCellCountX * mCellCountY; 295 int childCount = childrenLayout.getChildCount(); 296 if (childCount > 0) { 297 i = (currentPage * numItemsPerPage) + (childCount / 2); 298 } 299 } else { 300 int numApps = mApps.size(); 301 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 302 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 303 int childCount = layout.getChildCount(); 304 if (childCount > 0) { 305 i = numApps + 306 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 307 } 308 } 309 } 310 return i; 311 } 312 313 /** Get the index of the item to restore to if we need to restore the current page. */ 314 int getSaveInstanceStateIndex() { 315 if (mSaveInstanceStateItemIndex == -1) { 316 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 317 } 318 return mSaveInstanceStateItemIndex; 319 } 320 321 /** Returns the page in the current orientation which is expected to contain the specified 322 * item index. */ 323 int getPageForComponent(int index) { 324 if (index < 0) return 0; 325 326 if (index < mApps.size()) { 327 int numItemsPerPage = mCellCountX * mCellCountY; 328 return (index / numItemsPerPage); 329 } else { 330 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 331 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 332 } 333 } 334 335 /** 336 * This differs from isDataReady as this is the test done if isDataReady is not set. 337 */ 338 private boolean testDataReady() { 339 // We only do this test once, and we default to the Applications page, so we only really 340 // have to wait for there to be apps. 341 // TODO: What if one of them is validly empty 342 return !mApps.isEmpty() && !mWidgets.isEmpty(); 343 } 344 345 /** Restores the page for an item at the specified index */ 346 void restorePageForIndex(int index) { 347 if (index < 0) return; 348 mSaveInstanceStateItemIndex = index; 349 } 350 351 private void updatePageCounts() { 352 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 353 (float) (mWidgetCountX * mWidgetCountY)); 354 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 355 } 356 357 protected void onDataReady(int width, int height) { 358 // Note that we transpose the counts in portrait so that we get a similar layout 359 boolean isLandscape = getResources().getConfiguration().orientation == 360 Configuration.ORIENTATION_LANDSCAPE; 361 int maxCellCountX = Integer.MAX_VALUE; 362 int maxCellCountY = Integer.MAX_VALUE; 363 if (LauncherApplication.isScreenLarge()) { 364 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 365 LauncherModel.getCellCountY()); 366 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 367 LauncherModel.getCellCountX()); 368 } 369 if (mMaxAppCellCountX > -1) { 370 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 371 } 372 if (mMaxAppCellCountY > -1) { 373 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 374 } 375 376 // Now that the data is ready, we can calculate the content width, the number of cells to 377 // use for each page 378 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 379 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 380 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 381 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 382 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 383 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 384 updatePageCounts(); 385 386 // Force a measure to update recalculate the gaps 387 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 388 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 389 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 390 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 391 392 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 393 final boolean hostIsTransitioning = host.isTransitioning(); 394 395 // Restore the page 396 int page = getPageForComponent(mSaveInstanceStateItemIndex); 397 invalidatePageData(Math.max(0, page), hostIsTransitioning); 398 399 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 400 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 401 // returned while animating) 402 if (!hostIsTransitioning) { 403 post(new Runnable() { 404 @Override 405 public void run() { 406 showAllAppsCling(); 407 } 408 }); 409 } 410 } 411 412 void showAllAppsCling() { 413 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 414 mHasShownAllAppsCling = true; 415 // Calculate the position for the cling punch through 416 int[] offset = new int[2]; 417 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 418 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 419 // PagedViews are centered horizontally but top aligned 420 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 421 offset[0]; 422 pos[1] += offset[1]; 423 mLauncher.showFirstRunAllAppsCling(pos); 424 } 425 } 426 427 @Override 428 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 429 int width = MeasureSpec.getSize(widthMeasureSpec); 430 int height = MeasureSpec.getSize(heightMeasureSpec); 431 if (!isDataReady()) { 432 if (testDataReady()) { 433 setDataIsReady(); 434 setMeasuredDimension(width, height); 435 onDataReady(width, height); 436 } 437 } 438 439 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 440 } 441 442 public void onPackagesUpdated() { 443 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 444 // by a broadcast receiver, and in order for it to work correctly, we need to know that 445 // the AppWidgetService has already received and processed the same broadcast. Since there 446 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 447 // we should have a more precise way of ensuring the AppWidgetService is up to date. 448 postDelayed(new Runnable() { 449 public void run() { 450 updatePackages(); 451 } 452 }, 500); 453 } 454 455 public void updatePackages() { 456 // Get the list of widgets and shortcuts 457 boolean wasEmpty = mWidgets.isEmpty(); 458 mWidgets.clear(); 459 List<AppWidgetProviderInfo> widgets = 460 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 461 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 462 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 463 for (AppWidgetProviderInfo widget : widgets) { 464 if (widget.minWidth > 0 && widget.minHeight > 0) { 465 mWidgets.add(widget); 466 } else { 467 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 468 widget.minWidth + ", " + widget.minHeight + ")"); 469 } 470 } 471 mWidgets.addAll(shortcuts); 472 Collections.sort(mWidgets, 473 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 474 updatePageCounts(); 475 476 if (wasEmpty) { 477 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 478 // a layout to do this test and invalidate the page data when ready. 479 if (testDataReady()) requestLayout(); 480 } else { 481 cancelAllTasks(); 482 invalidatePageData(); 483 } 484 } 485 486 @Override 487 public void onClick(View v) { 488 // When we have exited all apps or are in transition, disregard clicks 489 if (!mLauncher.isAllAppsCustomizeOpen() || 490 mLauncher.getWorkspace().isSwitchingState()) return; 491 492 if (v instanceof PagedViewIcon) { 493 // Animate some feedback to the click 494 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 495 mLauncher.startActivitySafely(appInfo.intent, appInfo); 496 497 // Lock the drawable state to pressed until we return to Launcher 498 if (mPressedIcon != null) { 499 mPressedIcon.lockDrawableState(); 500 } 501 } else if (v instanceof PagedViewWidget) { 502 // Let the user know that they have to long press to add a widget 503 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 504 Toast.LENGTH_SHORT).show(); 505 506 // Create a little animation to show that the widget can move 507 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 508 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 509 AnimatorSet bounce = new AnimatorSet(); 510 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 511 tyuAnim.setDuration(125); 512 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 513 tydAnim.setDuration(100); 514 bounce.play(tyuAnim).before(tydAnim); 515 bounce.setInterpolator(new AccelerateInterpolator()); 516 bounce.start(); 517 } 518 } 519 520 public boolean onKey(View v, int keyCode, KeyEvent event) { 521 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 522 } 523 524 /* 525 * PagedViewWithDraggableItems implementation 526 */ 527 @Override 528 protected void determineDraggingStart(android.view.MotionEvent ev) { 529 // Disable dragging by pulling an app down for now. 530 } 531 532 private void beginDraggingApplication(View v) { 533 mLauncher.getWorkspace().onDragStartedWithItem(v); 534 mLauncher.getWorkspace().beginDragShared(v, this); 535 } 536 537 private void beginDraggingWidget(View v) { 538 // Get the widget preview as the drag representation 539 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 540 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 541 542 // Compose the drag image 543 Bitmap preview; 544 Bitmap outline; 545 if (createItemInfo instanceof PendingAddWidgetInfo) { 546 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 547 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 548 createItemInfo.spanX = spanXY[0]; 549 createItemInfo.spanY = spanXY[1]; 550 551 int[] maxSize = mLauncher.getWorkspace().estimateItemSize(spanXY[0], spanXY[1], 552 createWidgetInfo, true); 553 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 554 createWidgetInfo.icon, spanXY[0], spanXY[1], maxSize[0], maxSize[1]); 555 } else { 556 // Workaround for the fact that we don't keep the original ResolveInfo associated with 557 // the shortcut around. To get the icon, we just render the preview image (which has 558 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 559 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 560 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 561 Drawable d = image.getDrawable(); 562 mCanvas.setBitmap(preview); 563 d.draw(mCanvas); 564 mCanvas.setBitmap(null); 565 createItemInfo.spanX = createItemInfo.spanY = 1; 566 } 567 568 // We use a custom alpha clip table for the default widget previews 569 Paint alphaClipPaint = null; 570 if (createItemInfo instanceof PendingAddWidgetInfo) { 571 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 572 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 573 alphaClipPaint = new Paint(); 574 alphaClipPaint.setMaskFilter(alphaClipTable); 575 } 576 } 577 578 // Save the preview for the outline generation, then dim the preview 579 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 580 false); 581 582 // Start the drag 583 alphaClipPaint = null; 584 mLauncher.lockScreenOrientationOnLargeUI(); 585 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 586 mDragController.startDrag(image, preview, this, createItemInfo, 587 DragController.DRAG_ACTION_COPY, null); 588 outline.recycle(); 589 preview.recycle(); 590 } 591 @Override 592 protected boolean beginDragging(View v) { 593 // Dismiss the cling 594 mLauncher.dismissAllAppsCling(null); 595 596 if (!super.beginDragging(v)) return false; 597 598 // Reset the alpha on the dragged icon before we drag 599 resetDrawableState(); 600 601 // Go into spring loaded mode (must happen before we startDrag()) 602 mLauncher.enterSpringLoadedDragMode(); 603 604 if (v instanceof PagedViewIcon) { 605 beginDraggingApplication(v); 606 } else if (v instanceof PagedViewWidget) { 607 beginDraggingWidget(v); 608 } 609 return true; 610 } 611 private void endDragging(View target, boolean success) { 612 mLauncher.getWorkspace().onDragStopped(success); 613 if (!success || (target != mLauncher.getWorkspace() && 614 !(target instanceof DeleteDropTarget))) { 615 // Exit spring loaded mode if we have not successfully dropped or have not handled the 616 // drop in Workspace 617 mLauncher.exitSpringLoadedDragMode(); 618 } 619 mLauncher.unlockScreenOrientationOnLargeUI(); 620 621 } 622 623 @Override 624 public void onDropCompleted(View target, DragObject d, boolean success) { 625 endDragging(target, success); 626 627 // Display an error message if the drag failed due to there not being enough space on the 628 // target layout we were dropping on. 629 if (!success) { 630 boolean showOutOfSpaceMessage = false; 631 if (target instanceof Workspace) { 632 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 633 Workspace workspace = (Workspace) target; 634 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 635 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 636 if (layout != null) { 637 layout.calculateSpans(itemInfo); 638 showOutOfSpaceMessage = 639 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 640 } 641 } 642 if (showOutOfSpaceMessage) { 643 mLauncher.showOutOfSpaceMessage(); 644 } 645 } 646 } 647 648 @Override 649 protected void onDetachedFromWindow() { 650 super.onDetachedFromWindow(); 651 cancelAllTasks(); 652 } 653 654 public void clearAllWidgetPages() { 655 cancelAllTasks(); 656 int count = getChildCount(); 657 for (int i = 0; i < count; i++) { 658 View v = getPageAt(i); 659 if (v instanceof PagedViewGridLayout) { 660 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 661 mDirtyPageContent.set(i, true); 662 } 663 } 664 } 665 666 private void cancelAllTasks() { 667 // Clean up all the async tasks 668 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 669 while (iter.hasNext()) { 670 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 671 task.cancel(false); 672 iter.remove(); 673 } 674 } 675 676 public void setContentType(ContentType type) { 677 if (type == ContentType.Widgets) { 678 invalidatePageData(mNumAppsPages, true); 679 } else if (type == ContentType.Applications) { 680 invalidatePageData(0, true); 681 } 682 } 683 684 protected void snapToPage(int whichPage, int delta, int duration) { 685 super.snapToPage(whichPage, delta, duration); 686 updateCurrentTab(whichPage); 687 688 // Update the thread priorities given the direction lookahead 689 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 690 while (iter.hasNext()) { 691 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 692 int pageIndex = task.page + mNumAppsPages; 693 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 694 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 695 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 696 } else { 697 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 698 } 699 } 700 } 701 702 private void updateCurrentTab(int currentPage) { 703 AppsCustomizeTabHost tabHost = getTabHost(); 704 if (tabHost != null) { 705 String tag = tabHost.getCurrentTabTag(); 706 if (tag != null) { 707 if (currentPage >= mNumAppsPages && 708 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 709 tabHost.setCurrentTabFromContent(ContentType.Widgets); 710 } else if (currentPage < mNumAppsPages && 711 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 712 tabHost.setCurrentTabFromContent(ContentType.Applications); 713 } 714 } 715 } 716 } 717 718 /* 719 * Apps PagedView implementation 720 */ 721 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 722 int childCount = layout.getChildCount(); 723 for (int i = 0; i < childCount; ++i) { 724 layout.getChildAt(i).setVisibility(visibility); 725 } 726 } 727 private void setupPage(PagedViewCellLayout layout) { 728 layout.setCellCount(mCellCountX, mCellCountY); 729 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 730 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 731 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 732 733 // Note: We force a measure here to get around the fact that when we do layout calculations 734 // immediately after syncing, we don't have a proper width. That said, we already know the 735 // expected page width, so we can actually optimize by hiding all the TextView-based 736 // children that are expensive to measure, and let that happen naturally later. 737 setVisibilityOnChildren(layout, View.GONE); 738 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 739 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 740 layout.setMinimumWidth(getPageContentWidth()); 741 layout.measure(widthSpec, heightSpec); 742 setVisibilityOnChildren(layout, View.VISIBLE); 743 } 744 745 public void syncAppsPageItems(int page, boolean immediate) { 746 // ensure that we have the right number of items on the pages 747 int numCells = mCellCountX * mCellCountY; 748 int startIndex = page * numCells; 749 int endIndex = Math.min(startIndex + numCells, mApps.size()); 750 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 751 752 layout.removeAllViewsOnPage(); 753 ArrayList<Object> items = new ArrayList<Object>(); 754 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 755 for (int i = startIndex; i < endIndex; ++i) { 756 ApplicationInfo info = mApps.get(i); 757 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 758 R.layout.apps_customize_application, layout, false); 759 icon.applyFromApplicationInfo(info, true, this); 760 icon.setOnClickListener(this); 761 icon.setOnLongClickListener(this); 762 icon.setOnTouchListener(this); 763 icon.setOnKeyListener(this); 764 765 int index = i - startIndex; 766 int x = index % mCellCountX; 767 int y = index / mCellCountX; 768 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 769 770 items.add(info); 771 images.add(info.iconBitmap); 772 } 773 774 layout.createHardwareLayers(); 775 } 776 777 /** 778 * A helper to return the priority for loading of the specified widget page. 779 */ 780 private int getWidgetPageLoadPriority(int page) { 781 // If we are snapping to another page, use that index as the target page index 782 int toPage = mCurrentPage; 783 if (mNextPage > -1) { 784 toPage = mNextPage; 785 } 786 787 // We use the distance from the target page as an initial guess of priority, but if there 788 // are no pages of higher priority than the page specified, then bump up the priority of 789 // the specified page. 790 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 791 int minPageDiff = Integer.MAX_VALUE; 792 while (iter.hasNext()) { 793 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 794 minPageDiff = Math.abs(task.page + mNumAppsPages - toPage); 795 } 796 797 int rawPageDiff = Math.abs(page - toPage); 798 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 799 } 800 /** 801 * Return the appropriate thread priority for loading for a given page (we give the current 802 * page much higher priority) 803 */ 804 private int getThreadPriorityForPage(int page) { 805 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 806 int pageDiff = getWidgetPageLoadPriority(page); 807 if (pageDiff <= 0) { 808 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 809 } else if (pageDiff <= 1) { 810 return Process.THREAD_PRIORITY_LOWEST; 811 } else { 812 return Process.THREAD_PRIORITY_LOWEST; 813 } 814 } 815 private int getSleepForPage(int page) { 816 int pageDiff = getWidgetPageLoadPriority(page); 817 return Math.max(0, pageDiff * sPageSleepDelay); 818 } 819 /** 820 * Creates and executes a new AsyncTask to load a page of widget previews. 821 */ 822 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 823 int cellWidth, int cellHeight, int cellCountX) { 824 825 // Prune all tasks that are no longer needed 826 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 827 while (iter.hasNext()) { 828 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 829 int taskPage = task.page + mNumAppsPages; 830 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 831 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 832 task.cancel(false); 833 iter.remove(); 834 } else { 835 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 836 } 837 } 838 839 // We introduce a slight delay to order the loading of side pages so that we don't thrash 840 final int sleepMs = getSleepForPage(page + mNumAppsPages); 841 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 842 new AsyncTaskCallback() { 843 @Override 844 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 845 try { 846 try { 847 Thread.sleep(sleepMs); 848 } catch (Exception e) {} 849 loadWidgetPreviewsInBackground(task, data); 850 } finally { 851 if (task.isCancelled()) { 852 data.cleanup(true); 853 } 854 } 855 } 856 }, 857 new AsyncTaskCallback() { 858 @Override 859 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 860 try { 861 mRunningTasks.remove(task); 862 if (task.isCancelled()) return; 863 onSyncWidgetPageItems(data); 864 } finally { 865 data.cleanup(task.isCancelled()); 866 } 867 } 868 }); 869 870 // Ensure that the task is appropriately prioritized and runs in parallel 871 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 872 AsyncTaskPageData.Type.LoadWidgetPreviewData); 873 t.setThreadPriority(getThreadPriorityForPage(page + mNumAppsPages)); 874 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 875 mRunningTasks.add(t); 876 } 877 878 /* 879 * Widgets PagedView implementation 880 */ 881 private void setupPage(PagedViewGridLayout layout) { 882 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 883 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 884 885 // Note: We force a measure here to get around the fact that when we do layout calculations 886 // immediately after syncing, we don't have a proper width. 887 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 888 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 889 layout.setMinimumWidth(getPageContentWidth()); 890 layout.measure(widthSpec, heightSpec); 891 } 892 893 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 894 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 895 } 896 897 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 898 float scale, int multiplyColor) { 899 if (bitmap != null) { 900 Canvas c = new Canvas(bitmap); 901 c.scale(scale, scale); 902 Rect oldBounds = d.copyBounds(); 903 d.setBounds(x, y, x + w, y + h); 904 d.draw(c); 905 d.setBounds(oldBounds); // Restore the bounds 906 c.setBitmap(null); 907 } 908 } 909 private Bitmap getShortcutPreview(ResolveInfo info) { 910 // Render the background 911 int offset = 0; 912 int bitmapSize = mAppIconSize; 913 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 914 915 // Render the icon 916 Drawable icon = mIconCache.getFullResIcon(info); 917 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 918 return preview; 919 } 920 921 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 922 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 923 // Load the preview image if possible 924 String packageName = provider.getPackageName(); 925 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 926 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 927 928 Drawable drawable = null; 929 if (previewImage != 0) { 930 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 931 if (drawable == null) { 932 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 933 Integer.toHexString(previewImage) + " for provider: " + provider); 934 } 935 } 936 937 int bitmapWidth; 938 int bitmapHeight; 939 boolean widgetPreviewExists = (drawable != null); 940 if (widgetPreviewExists) { 941 bitmapWidth = drawable.getIntrinsicWidth(); 942 bitmapHeight = drawable.getIntrinsicHeight(); 943 944 // Cap the size so widget previews don't appear larger than the actual widget 945 maxWidth = Math.min(maxWidth, mWidgetSpacingLayout.estimateCellWidth(cellHSpan)); 946 maxHeight = Math.min(maxHeight, mWidgetSpacingLayout.estimateCellHeight(cellVSpan)); 947 } else { 948 // Determine the size of the bitmap for the preview image we will generate 949 // TODO: This actually uses the apps customize cell layout params, where as we make want 950 // the Workspace params for more accuracy. 951 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 952 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 953 if (cellHSpan == cellVSpan) { 954 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 955 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 956 if (cellHSpan <= 1) { 957 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 958 } else { 959 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 960 } 961 } 962 } 963 964 float scale = 1f; 965 if (bitmapWidth > maxWidth) { 966 scale = maxWidth / (float) bitmapWidth; 967 } 968 if (bitmapHeight * scale > maxHeight) { 969 scale = maxHeight / (float) bitmapHeight; 970 } 971 if (scale != 1f) { 972 bitmapWidth = (int) (scale * bitmapWidth); 973 bitmapHeight = (int) (scale * bitmapHeight); 974 } 975 976 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 977 978 if (widgetPreviewExists) { 979 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 980 } else { 981 // Generate a preview image if we couldn't load one 982 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 983 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 984 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 985 if (cellHSpan != 1 || cellVSpan != 1) { 986 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 987 bitmapHeight); 988 } 989 990 // Draw the icon in the top left corner 991 try { 992 Drawable icon = null; 993 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 994 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 995 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 996 Resources resources = mLauncher.getResources(); 997 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 998 999 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1000 (int) (mAppIconSize * iconScale), 1001 (int) (mAppIconSize * iconScale)); 1002 } catch (Resources.NotFoundException e) {} 1003 } 1004 return preview; 1005 } 1006 1007 public void syncWidgetPageItems(final int page, final boolean immediate) { 1008 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1009 1010 // Calculate the dimensions of each cell we are giving to each widget 1011 final ArrayList<Object> items = new ArrayList<Object>(); 1012 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1013 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1014 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1015 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1016 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1017 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1018 1019 // Prepare the set of widgets to load previews for in the background 1020 int offset = page * numItemsPerPage; 1021 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1022 items.add(mWidgets.get(i)); 1023 } 1024 1025 // Prepopulate the pages with the other widget info, and fill in the previews later 1026 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1027 layout.setColumnCount(layout.getCellCountX()); 1028 for (int i = 0; i < items.size(); ++i) { 1029 Object rawInfo = items.get(i); 1030 PendingAddItemInfo createItemInfo = null; 1031 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1032 R.layout.apps_customize_widget, layout, false); 1033 if (rawInfo instanceof AppWidgetProviderInfo) { 1034 // Fill in the widget information 1035 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1036 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1037 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1038 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans); 1039 widget.setTag(createItemInfo); 1040 } else if (rawInfo instanceof ResolveInfo) { 1041 // Fill in the shortcuts information 1042 ResolveInfo info = (ResolveInfo) rawInfo; 1043 createItemInfo = new PendingAddItemInfo(); 1044 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1045 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1046 info.activityInfo.name); 1047 widget.applyFromResolveInfo(mPackageManager, info); 1048 widget.setTag(createItemInfo); 1049 } 1050 widget.setOnClickListener(this); 1051 widget.setOnLongClickListener(this); 1052 widget.setOnTouchListener(this); 1053 widget.setOnKeyListener(this); 1054 1055 // Layout each widget 1056 int ix = i % mWidgetCountX; 1057 int iy = i / mWidgetCountX; 1058 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1059 GridLayout.spec(iy, GridLayout.LEFT), 1060 GridLayout.spec(ix, GridLayout.TOP)); 1061 lp.width = cellWidth; 1062 lp.height = cellHeight; 1063 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1064 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1065 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1066 layout.addView(widget, lp); 1067 } 1068 1069 // wait until a call on onLayout to start loading, because 1070 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1071 // TODO: can we do a measure/layout immediately? 1072 layout.setOnLayoutListener(new Runnable() { 1073 public void run() { 1074 // Load the widget previews 1075 int maxPreviewWidth = cellWidth; 1076 int maxPreviewHeight = cellHeight; 1077 if (layout.getChildCount() > 0) { 1078 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1079 int[] maxSize = w.getPreviewSize(); 1080 maxPreviewWidth = maxSize[0]; 1081 maxPreviewHeight = maxSize[1]; 1082 } 1083 if (immediate) { 1084 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1085 maxPreviewWidth, maxPreviewHeight, null, null); 1086 loadWidgetPreviewsInBackground(null, data); 1087 onSyncWidgetPageItems(data); 1088 } else { 1089 prepareLoadWidgetPreviewsTask(page, items, 1090 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1091 } 1092 } 1093 }); 1094 } 1095 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1096 AsyncTaskPageData data) { 1097 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1098 // previews synchronously 1099 if (task != null) { 1100 // Ensure that this task starts running at the correct priority 1101 task.syncThreadPriority(); 1102 } 1103 1104 // Load each of the widget/shortcut previews 1105 ArrayList<Object> items = data.items; 1106 ArrayList<Bitmap> images = data.generatedImages; 1107 int count = items.size(); 1108 for (int i = 0; i < count; ++i) { 1109 if (task != null) { 1110 // Ensure we haven't been cancelled yet 1111 if (task.isCancelled()) break; 1112 // Before work on each item, ensure that this task is running at the correct 1113 // priority 1114 task.syncThreadPriority(); 1115 } 1116 1117 Object rawInfo = items.get(i); 1118 if (rawInfo instanceof AppWidgetProviderInfo) { 1119 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1120 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1121 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1122 cellSpans[0], cellSpans[1], data.maxImageWidth, data.maxImageHeight); 1123 images.add(b); 1124 } else if (rawInfo instanceof ResolveInfo) { 1125 // Fill in the shortcuts information 1126 ResolveInfo info = (ResolveInfo) rawInfo; 1127 images.add(getShortcutPreview(info)); 1128 } 1129 } 1130 } 1131 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1132 int page = data.page; 1133 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1134 1135 ArrayList<Object> items = data.items; 1136 int count = items.size(); 1137 for (int i = 0; i < count; ++i) { 1138 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1139 if (widget != null) { 1140 Bitmap preview = data.generatedImages.get(i); 1141 widget.applyPreview(new FastBitmapDrawable(preview), i); 1142 } 1143 } 1144 1145 layout.createHardwareLayer(); 1146 invalidate(); 1147 1148 // Update all thread priorities 1149 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1150 while (iter.hasNext()) { 1151 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1152 int pageIndex = task.page + mNumAppsPages; 1153 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1154 } 1155 } 1156 1157 @Override 1158 public void syncPages() { 1159 removeAllViews(); 1160 cancelAllTasks(); 1161 1162 Context context = getContext(); 1163 for (int j = 0; j < mNumWidgetPages; ++j) { 1164 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1165 mWidgetCountY); 1166 setupPage(layout); 1167 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1168 LayoutParams.MATCH_PARENT)); 1169 } 1170 1171 for (int i = 0; i < mNumAppsPages; ++i) { 1172 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1173 setupPage(layout); 1174 addView(layout); 1175 } 1176 } 1177 1178 @Override 1179 public void syncPageItems(int page, boolean immediate) { 1180 if (page < mNumAppsPages) { 1181 syncAppsPageItems(page, immediate); 1182 } else { 1183 syncWidgetPageItems(page - mNumAppsPages, immediate); 1184 } 1185 } 1186 1187 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1188 // it is in the z-order. This is important to insure touch events are handled correctly. 1189 View getPageAt(int index) { 1190 return getChildAt(getChildCount() - index - 1); 1191 } 1192 1193 @Override 1194 protected int indexToPage(int index) { 1195 return getChildCount() - index - 1; 1196 } 1197 1198 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1199 @Override 1200 protected void screenScrolled(int screenCenter) { 1201 super.screenScrolled(screenCenter); 1202 1203 for (int i = 0; i < getChildCount(); i++) { 1204 View v = getPageAt(i); 1205 if (v != null) { 1206 float scrollProgress = getScrollProgress(screenCenter, v, i); 1207 1208 float interpolatedProgress = 1209 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1210 float scale = (1 - interpolatedProgress) + 1211 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1212 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1213 1214 float alpha; 1215 1216 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1217 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1218 1 - Math.abs(scrollProgress)) : 1.0f; 1219 } else { 1220 // On large screens we need to fade the page as it nears its leftmost position 1221 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1222 } 1223 1224 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1225 int pageWidth = v.getMeasuredWidth(); 1226 int pageHeight = v.getMeasuredHeight(); 1227 1228 if (PERFORM_OVERSCROLL_ROTATION) { 1229 if (i == 0 && scrollProgress < 0) { 1230 // Overscroll to the left 1231 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1232 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1233 scale = 1.0f; 1234 alpha = 1.0f; 1235 // On the first page, we don't want the page to have any lateral motion 1236 translationX = 0; 1237 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1238 // Overscroll to the right 1239 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1240 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1241 scale = 1.0f; 1242 alpha = 1.0f; 1243 // On the last page, we don't want the page to have any lateral motion. 1244 translationX = 0; 1245 } else { 1246 v.setPivotY(pageHeight / 2.0f); 1247 v.setPivotX(pageWidth / 2.0f); 1248 v.setRotationY(0f); 1249 } 1250 } 1251 1252 v.setTranslationX(translationX); 1253 v.setScaleX(scale); 1254 v.setScaleY(scale); 1255 v.setAlpha(alpha); 1256 1257 // If the view has 0 alpha, we set it to be invisible so as to prevent 1258 // it from accepting touches 1259 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1260 v.setVisibility(INVISIBLE); 1261 } else if (v.getVisibility() != VISIBLE) { 1262 v.setVisibility(VISIBLE); 1263 } 1264 } 1265 } 1266 } 1267 1268 protected void overScroll(float amount) { 1269 acceleratedOverScroll(amount); 1270 } 1271 1272 /** 1273 * Used by the parent to get the content width to set the tab bar to 1274 * @return 1275 */ 1276 public int getPageContentWidth() { 1277 return mContentWidth; 1278 } 1279 1280 @Override 1281 protected void onPageEndMoving() { 1282 super.onPageEndMoving(); 1283 1284 // We reset the save index when we change pages so that it will be recalculated on next 1285 // rotation 1286 mSaveInstanceStateItemIndex = -1; 1287 } 1288 1289 /* 1290 * AllAppsView implementation 1291 */ 1292 @Override 1293 public void setup(Launcher launcher, DragController dragController) { 1294 mLauncher = launcher; 1295 mDragController = dragController; 1296 } 1297 @Override 1298 public void zoom(float zoom, boolean animate) { 1299 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1300 } 1301 @Override 1302 public boolean isVisible() { 1303 return (getVisibility() == VISIBLE); 1304 } 1305 @Override 1306 public boolean isAnimating() { 1307 return false; 1308 } 1309 @Override 1310 public void setApps(ArrayList<ApplicationInfo> list) { 1311 mApps = list; 1312 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1313 updatePageCounts(); 1314 1315 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1316 // request a layout to do this test and invalidate the page data when ready. 1317 if (testDataReady()) requestLayout(); 1318 } 1319 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1320 // We add it in place, in alphabetical order 1321 int count = list.size(); 1322 for (int i = 0; i < count; ++i) { 1323 ApplicationInfo info = list.get(i); 1324 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1325 if (index < 0) { 1326 mApps.add(-(index + 1), info); 1327 } 1328 } 1329 } 1330 @Override 1331 public void addApps(ArrayList<ApplicationInfo> list) { 1332 addAppsWithoutInvalidate(list); 1333 updatePageCounts(); 1334 invalidatePageData(); 1335 } 1336 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1337 ComponentName removeComponent = item.intent.getComponent(); 1338 int length = list.size(); 1339 for (int i = 0; i < length; ++i) { 1340 ApplicationInfo info = list.get(i); 1341 if (info.intent.getComponent().equals(removeComponent)) { 1342 return i; 1343 } 1344 } 1345 return -1; 1346 } 1347 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1348 // loop through all the apps and remove apps that have the same component 1349 int length = list.size(); 1350 for (int i = 0; i < length; ++i) { 1351 ApplicationInfo info = list.get(i); 1352 int removeIndex = findAppByComponent(mApps, info); 1353 if (removeIndex > -1) { 1354 mApps.remove(removeIndex); 1355 } 1356 } 1357 } 1358 @Override 1359 public void removeApps(ArrayList<ApplicationInfo> list) { 1360 removeAppsWithoutInvalidate(list); 1361 updatePageCounts(); 1362 invalidatePageData(); 1363 } 1364 @Override 1365 public void updateApps(ArrayList<ApplicationInfo> list) { 1366 // We remove and re-add the updated applications list because it's properties may have 1367 // changed (ie. the title), and this will ensure that the items will be in their proper 1368 // place in the list. 1369 removeAppsWithoutInvalidate(list); 1370 addAppsWithoutInvalidate(list); 1371 updatePageCounts(); 1372 1373 invalidatePageData(); 1374 } 1375 1376 @Override 1377 public void reset() { 1378 // If we have reset, then we should not continue to restore the previous state 1379 mSaveInstanceStateItemIndex = -1; 1380 1381 AppsCustomizeTabHost tabHost = getTabHost(); 1382 String tag = tabHost.getCurrentTabTag(); 1383 if (tag != null) { 1384 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1385 tabHost.setCurrentTabFromContent(ContentType.Applications); 1386 } 1387 } 1388 1389 if (mCurrentPage != 0) { 1390 invalidatePageData(0); 1391 } 1392 } 1393 1394 private AppsCustomizeTabHost getTabHost() { 1395 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1396 } 1397 1398 @Override 1399 public void dumpState() { 1400 // TODO: Dump information related to current list of Applications, Widgets, etc. 1401 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1402 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1403 } 1404 1405 private void dumpAppWidgetProviderInfoList(String tag, String label, 1406 ArrayList<Object> list) { 1407 Log.d(tag, label + " size=" + list.size()); 1408 for (Object i: list) { 1409 if (i instanceof AppWidgetProviderInfo) { 1410 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1411 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1412 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1413 + " initialLayout=" + info.initialLayout 1414 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1415 } else if (i instanceof ResolveInfo) { 1416 ResolveInfo info = (ResolveInfo) i; 1417 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1418 + info.icon); 1419 } 1420 } 1421 } 1422 1423 @Override 1424 public void surrender() { 1425 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1426 // should stop this now. 1427 1428 // Stop all background tasks 1429 cancelAllTasks(); 1430 } 1431 1432 @Override 1433 public void iconPressed(PagedViewIcon icon) { 1434 // Reset the previously pressed icon and store a reference to the pressed icon so that 1435 // we can reset it on return to Launcher (in Launcher.onResume()) 1436 if (mPressedIcon != null) { 1437 mPressedIcon.resetDrawableState(); 1438 } 1439 mPressedIcon = icon; 1440 } 1441 1442 public void resetDrawableState() { 1443 if (mPressedIcon != null) { 1444 mPressedIcon.resetDrawableState(); 1445 mPressedIcon = null; 1446 } 1447 } 1448 1449 /* 1450 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1451 * widget previews in the background with the AsyncTasks. 1452 */ 1453 final static int sLookBehindPageCount = 2; 1454 final static int sLookAheadPageCount = 2; 1455 protected int getAssociatedLowerPageBound(int page) { 1456 final int count = getChildCount(); 1457 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1458 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1459 return windowMinIndex; 1460 } 1461 protected int getAssociatedUpperPageBound(int page) { 1462 final int count = getChildCount(); 1463 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1464 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1465 count - 1); 1466 return windowMaxIndex; 1467 } 1468 1469 @Override 1470 protected String getCurrentPageDescription() { 1471 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1472 int stringId = R.string.default_scroll_format; 1473 int count = 0; 1474 1475 if (page < mNumAppsPages) { 1476 stringId = R.string.apps_customize_apps_scroll_format; 1477 count = mNumAppsPages; 1478 } else { 1479 page -= mNumAppsPages; 1480 stringId = R.string.apps_customize_widgets_scroll_format; 1481 count = mNumWidgetPages; 1482 } 1483 1484 return String.format(mContext.getString(stringId), page + 1, count); 1485 } 1486} 1487