AppsCustomizePagedView.java revision 68f681bc7a10fc014ae0864c6e2db465ce4c30df
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.AppWidgetHostView; 23import android.appwidget.AppWidgetManager; 24import android.appwidget.AppWidgetProviderInfo; 25import android.content.ComponentName; 26import android.content.Context; 27import android.content.Intent; 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.ColorMatrix; 37import android.graphics.ColorMatrixColorFilter; 38import android.graphics.Insets; 39import android.graphics.MaskFilter; 40import android.graphics.Matrix; 41import android.graphics.Paint; 42import android.graphics.PorterDuff; 43import android.graphics.Rect; 44import android.graphics.RectF; 45import android.graphics.Shader; 46import android.graphics.TableMaskFilter; 47import android.graphics.drawable.BitmapDrawable; 48import android.graphics.drawable.Drawable; 49import android.os.AsyncTask; 50import android.os.Process; 51import android.util.AttributeSet; 52import android.util.Log; 53import android.view.Gravity; 54import android.view.KeyEvent; 55import android.view.LayoutInflater; 56import android.view.MotionEvent; 57import android.view.View; 58import android.view.ViewGroup; 59import android.view.animation.AccelerateInterpolator; 60import android.view.animation.DecelerateInterpolator; 61import android.widget.GridLayout; 62import android.widget.ImageView; 63import android.widget.LinearLayout; 64import android.widget.Toast; 65 66import com.android.launcher.R; 67import com.android.launcher2.DropTarget.DragObject; 68 69import java.util.ArrayList; 70import java.util.Collections; 71import java.util.Iterator; 72import java.util.List; 73import java.lang.ref.WeakReference; 74 75/** 76 * A simple callback interface which also provides the results of the task. 77 */ 78interface AsyncTaskCallback { 79 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 80} 81 82/** 83 * The data needed to perform either of the custom AsyncTasks. 84 */ 85class AsyncTaskPageData { 86 enum Type { 87 LoadWidgetPreviewData 88 } 89 90 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 91 AsyncTaskCallback postR) { 92 page = p; 93 items = l; 94 sourceImages = si; 95 generatedImages = new ArrayList<Bitmap>(); 96 maxImageWidth = maxImageHeight = -1; 97 doInBackgroundCallback = bgR; 98 postExecuteCallback = postR; 99 } 100 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 101 AsyncTaskCallback postR) { 102 page = p; 103 items = l; 104 generatedImages = new ArrayList<Bitmap>(); 105 maxImageWidth = cw; 106 maxImageHeight = ch; 107 doInBackgroundCallback = bgR; 108 postExecuteCallback = postR; 109 } 110 void cleanup(boolean cancelled) { 111 // Clean up any references to source/generated bitmaps 112 if (sourceImages != null) { 113 if (cancelled) { 114 for (Bitmap b : sourceImages) { 115 b.recycle(); 116 } 117 } 118 sourceImages.clear(); 119 } 120 if (generatedImages != null) { 121 if (cancelled) { 122 for (Bitmap b : generatedImages) { 123 b.recycle(); 124 } 125 } 126 generatedImages.clear(); 127 } 128 } 129 int page; 130 ArrayList<Object> items; 131 ArrayList<Bitmap> sourceImages; 132 ArrayList<Bitmap> generatedImages; 133 int maxImageWidth; 134 int maxImageHeight; 135 AsyncTaskCallback doInBackgroundCallback; 136 AsyncTaskCallback postExecuteCallback; 137} 138 139/** 140 * A generic template for an async task used in AppsCustomize. 141 */ 142class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 143 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 144 page = p; 145 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 146 dataType = ty; 147 } 148 @Override 149 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 150 if (params.length != 1) return null; 151 // Load each of the widget previews in the background 152 params[0].doInBackgroundCallback.run(this, params[0]); 153 return params[0]; 154 } 155 @Override 156 protected void onPostExecute(AsyncTaskPageData result) { 157 // All the widget previews are loaded, so we can just callback to inflate the page 158 result.postExecuteCallback.run(this, result); 159 } 160 161 void setThreadPriority(int p) { 162 threadPriority = p; 163 } 164 void syncThreadPriority() { 165 Process.setThreadPriority(threadPriority); 166 } 167 168 // The page that this async task is associated with 169 AsyncTaskPageData.Type dataType; 170 int page; 171 int threadPriority; 172} 173 174abstract class WeakReferenceThreadLocal<T> { 175 private ThreadLocal<WeakReference<T>> mThreadLocal; 176 public WeakReferenceThreadLocal() { 177 mThreadLocal = new ThreadLocal<WeakReference<T>>(); 178 } 179 180 abstract T initialValue(); 181 182 public void set(T t) { 183 mThreadLocal.set(new WeakReference<T>(t)); 184 } 185 186 public T get() { 187 WeakReference<T> reference = mThreadLocal.get(); 188 T obj; 189 if (reference == null) { 190 obj = initialValue(); 191 mThreadLocal.set(new WeakReference<T>(obj)); 192 return obj; 193 } else { 194 obj = reference.get(); 195 if (obj == null) { 196 obj = initialValue(); 197 mThreadLocal.set(new WeakReference<T>(obj)); 198 } 199 return obj; 200 } 201 } 202} 203 204class CanvasCache extends WeakReferenceThreadLocal<Canvas> { 205 @Override 206 protected Canvas initialValue() { 207 return new Canvas(); 208 } 209} 210 211class PaintCache extends WeakReferenceThreadLocal<Paint> { 212 @Override 213 protected Paint initialValue() { 214 return null; 215 } 216} 217 218class BitmapCache extends WeakReferenceThreadLocal<Bitmap> { 219 @Override 220 protected Bitmap initialValue() { 221 return null; 222 } 223} 224 225class RectCache extends WeakReferenceThreadLocal<Rect> { 226 @Override 227 protected Rect initialValue() { 228 return new Rect(); 229 } 230} 231 232/** 233 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 234 */ 235public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 236 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource, 237 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener, 238 LauncherTransitionable { 239 static final String TAG = "AppsCustomizePagedView"; 240 241 /** 242 * The different content types that this paged view can show. 243 */ 244 public enum ContentType { 245 Applications, 246 Widgets 247 } 248 249 // Refs 250 private Launcher mLauncher; 251 private DragController mDragController; 252 private final LayoutInflater mLayoutInflater; 253 private final PackageManager mPackageManager; 254 255 // Save and Restore 256 private int mSaveInstanceStateItemIndex = -1; 257 private PagedViewIcon mPressedIcon; 258 259 // Content 260 private ArrayList<ApplicationInfo> mApps; 261 private ArrayList<Object> mWidgets; 262 263 // Cling 264 private boolean mHasShownAllAppsCling; 265 private int mClingFocusedX; 266 private int mClingFocusedY; 267 268 // Caching 269 private Canvas mCanvas; 270 private Drawable mDefaultWidgetBackground; 271 private IconCache mIconCache; 272 273 // Dimens 274 private int mContentWidth; 275 private int mAppIconSize; 276 private int mMaxAppCellCountX, mMaxAppCellCountY; 277 private int mWidgetCountX, mWidgetCountY; 278 private int mWidgetWidthGap, mWidgetHeightGap; 279 private final int mWidgetPreviewIconPaddedDimension; 280 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 281 private PagedViewCellLayout mWidgetSpacingLayout; 282 private int mNumAppsPages; 283 private int mNumWidgetPages; 284 285 // Relating to the scroll and overscroll effects 286 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 287 private static float CAMERA_DISTANCE = 6500; 288 private static float TRANSITION_SCALE_FACTOR = 0.74f; 289 private static float TRANSITION_PIVOT = 0.65f; 290 private static float TRANSITION_MAX_ROTATION = 22; 291 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 292 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 293 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 294 295 // Previews & outlines 296 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 297 private static final int sPageSleepDelay = 200; 298 299 private Runnable mInflateWidgetRunnable = null; 300 private Runnable mBindWidgetRunnable = null; 301 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 302 static final int WIDGET_BOUND = 0; 303 static final int WIDGET_INFLATED = 1; 304 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 305 int mWidgetLoadingId = -1; 306 PendingAddWidgetInfo mCreateWidgetInfo = null; 307 private boolean mDraggingWidget = false; 308 309 // Deferral of loading widget previews during launcher transitions 310 private boolean mInTransition; 311 private ArrayList<AsyncTaskPageData> mDeferredSyncWidgetPageItems = 312 new ArrayList<AsyncTaskPageData>(); 313 314 // Used for drawing shortcut previews 315 BitmapCache mCachedShortcutPreviewBitmap = new BitmapCache(); 316 PaintCache mCachedShortcutPreviewPaint = new PaintCache(); 317 CanvasCache mCachedShortcutPreviewCanvas = new CanvasCache(); 318 319 // Used for drawing widget previews 320 CanvasCache mCachedAppWidgetPreviewCanvas = new CanvasCache(); 321 RectCache mCachedAppWidgetPreviewSrcRect = new RectCache(); 322 RectCache mCachedAppWidgetPreviewDestRect = new RectCache(); 323 PaintCache mCachedAppWidgetPreviewPaint = new PaintCache(); 324 325 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 326 super(context, attrs); 327 mLayoutInflater = LayoutInflater.from(context); 328 mPackageManager = context.getPackageManager(); 329 mApps = new ArrayList<ApplicationInfo>(); 330 mWidgets = new ArrayList<Object>(); 331 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 332 mCanvas = new Canvas(); 333 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 334 335 // Save the default widget preview background 336 Resources resources = context.getResources(); 337 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 338 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 339 340 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 341 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 342 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 343 mWidgetWidthGap = 344 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 345 mWidgetHeightGap = 346 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 347 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 348 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 349 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 350 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 351 a.recycle(); 352 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 353 354 // The padding on the non-matched dimension for the default widget preview icons 355 // (top + bottom) 356 mWidgetPreviewIconPaddedDimension = 357 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 358 mFadeInAdjacentScreens = false; 359 360 // Unless otherwise specified this view is important for accessibility. 361 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 362 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 363 } 364 } 365 366 @Override 367 protected void init() { 368 super.init(); 369 mCenterPagesVertically = false; 370 371 Context context = getContext(); 372 Resources r = context.getResources(); 373 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 374 } 375 376 @Override 377 protected void onUnhandledTap(MotionEvent ev) { 378 if (LauncherApplication.isScreenLarge()) { 379 // Dismiss AppsCustomize if we tap 380 mLauncher.showWorkspace(true); 381 } 382 } 383 384 /** Returns the item index of the center item on this page so that we can restore to this 385 * item index when we rotate. */ 386 private int getMiddleComponentIndexOnCurrentPage() { 387 int i = -1; 388 if (getPageCount() > 0) { 389 int currentPage = getCurrentPage(); 390 if (currentPage < mNumAppsPages) { 391 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 392 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 393 int numItemsPerPage = mCellCountX * mCellCountY; 394 int childCount = childrenLayout.getChildCount(); 395 if (childCount > 0) { 396 i = (currentPage * numItemsPerPage) + (childCount / 2); 397 } 398 } else { 399 int numApps = mApps.size(); 400 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 401 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 402 int childCount = layout.getChildCount(); 403 if (childCount > 0) { 404 i = numApps + 405 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 406 } 407 } 408 } 409 return i; 410 } 411 412 /** Get the index of the item to restore to if we need to restore the current page. */ 413 int getSaveInstanceStateIndex() { 414 if (mSaveInstanceStateItemIndex == -1) { 415 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 416 } 417 return mSaveInstanceStateItemIndex; 418 } 419 420 /** Returns the page in the current orientation which is expected to contain the specified 421 * item index. */ 422 int getPageForComponent(int index) { 423 if (index < 0) return 0; 424 425 if (index < mApps.size()) { 426 int numItemsPerPage = mCellCountX * mCellCountY; 427 return (index / numItemsPerPage); 428 } else { 429 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 430 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 431 } 432 } 433 434 /** 435 * This differs from isDataReady as this is the test done if isDataReady is not set. 436 */ 437 private boolean testDataReady() { 438 // We only do this test once, and we default to the Applications page, so we only really 439 // have to wait for there to be apps. 440 // TODO: What if one of them is validly empty 441 return !mApps.isEmpty() && !mWidgets.isEmpty(); 442 } 443 444 /** Restores the page for an item at the specified index */ 445 void restorePageForIndex(int index) { 446 if (index < 0) return; 447 mSaveInstanceStateItemIndex = index; 448 } 449 450 private void updatePageCounts() { 451 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 452 (float) (mWidgetCountX * mWidgetCountY)); 453 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 454 } 455 456 protected void onDataReady(int width, int height) { 457 // Note that we transpose the counts in portrait so that we get a similar layout 458 boolean isLandscape = getResources().getConfiguration().orientation == 459 Configuration.ORIENTATION_LANDSCAPE; 460 int maxCellCountX = Integer.MAX_VALUE; 461 int maxCellCountY = Integer.MAX_VALUE; 462 if (LauncherApplication.isScreenLarge()) { 463 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 464 LauncherModel.getCellCountY()); 465 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 466 LauncherModel.getCellCountX()); 467 } 468 if (mMaxAppCellCountX > -1) { 469 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 470 } 471 if (mMaxAppCellCountY > -1) { 472 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 473 } 474 475 // Now that the data is ready, we can calculate the content width, the number of cells to 476 // use for each page 477 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 478 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 479 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 480 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 481 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 482 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 483 updatePageCounts(); 484 485 // Force a measure to update recalculate the gaps 486 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 487 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 488 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 489 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 490 491 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 492 final boolean hostIsTransitioning = host.isTransitioning(); 493 494 // Restore the page 495 int page = getPageForComponent(mSaveInstanceStateItemIndex); 496 invalidatePageData(Math.max(0, page), hostIsTransitioning); 497 498 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 499 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 500 // returned while animating) 501 if (!hostIsTransitioning) { 502 post(new Runnable() { 503 @Override 504 public void run() { 505 showAllAppsCling(); 506 } 507 }); 508 } 509 } 510 511 void showAllAppsCling() { 512 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 513 mHasShownAllAppsCling = true; 514 // Calculate the position for the cling punch through 515 int[] offset = new int[2]; 516 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 517 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 518 // PagedViews are centered horizontally but top aligned 519 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 520 offset[0]; 521 pos[1] += offset[1]; 522 mLauncher.showFirstRunAllAppsCling(pos); 523 } 524 } 525 526 @Override 527 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 528 int width = MeasureSpec.getSize(widthMeasureSpec); 529 int height = MeasureSpec.getSize(heightMeasureSpec); 530 if (!isDataReady()) { 531 if (testDataReady()) { 532 setDataIsReady(); 533 setMeasuredDimension(width, height); 534 onDataReady(width, height); 535 } 536 } 537 538 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 539 } 540 541 public void onPackagesUpdated() { 542 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 543 // by a broadcast receiver, and in order for it to work correctly, we need to know that 544 // the AppWidgetService has already received and processed the same broadcast. Since there 545 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 546 // we should have a more precise way of ensuring the AppWidgetService is up to date. 547 postDelayed(new Runnable() { 548 public void run() { 549 updatePackages(); 550 } 551 }, 500); 552 } 553 554 public void updatePackages() { 555 // Get the list of widgets and shortcuts 556 boolean wasEmpty = mWidgets.isEmpty(); 557 mWidgets.clear(); 558 List<AppWidgetProviderInfo> widgets = 559 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 560 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 561 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 562 for (AppWidgetProviderInfo widget : widgets) { 563 if (widget.minWidth > 0 && widget.minHeight > 0) { 564 // Ensure that all widgets we show can be added on a workspace of this size 565 int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget); 566 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget); 567 int minSpanX = Math.min(spanXY[0], minSpanXY[0]); 568 int minSpanY = Math.min(spanXY[1], minSpanXY[1]); 569 if (minSpanX <= LauncherModel.getCellCountX() && 570 minSpanY <= LauncherModel.getCellCountY()) { 571 mWidgets.add(widget); 572 } 573 } else { 574 Log.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" + 575 widget.minWidth + ", " + widget.minHeight + ")"); 576 } 577 } 578 mWidgets.addAll(shortcuts); 579 Collections.sort(mWidgets, 580 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 581 updatePageCounts(); 582 583 if (wasEmpty) { 584 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 585 // a layout to do this test and invalidate the page data when ready. 586 if (testDataReady()) requestLayout(); 587 } else { 588 cancelAllTasks(); 589 invalidatePageData(); 590 } 591 } 592 593 @Override 594 public void onClick(View v) { 595 // When we have exited all apps or are in transition, disregard clicks 596 if (!mLauncher.isAllAppsCustomizeOpen() || 597 mLauncher.getWorkspace().isSwitchingState()) return; 598 599 if (v instanceof PagedViewIcon) { 600 // Animate some feedback to the click 601 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 602 603 // Lock the drawable state to pressed until we return to Launcher 604 if (mPressedIcon != null) { 605 mPressedIcon.lockDrawableState(); 606 } 607 608 // NOTE: We want all transitions from launcher to act as if the wallpaper were enabled 609 // to be consistent. So re-enable the flag here, and we will re-disable it as necessary 610 // when Launcher resumes and we are still in AllApps. 611 mLauncher.updateWallpaperVisibility(true); 612 mLauncher.startActivitySafely(v, appInfo.intent, appInfo); 613 614 } else if (v instanceof PagedViewWidget) { 615 // Let the user know that they have to long press to add a widget 616 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 617 Toast.LENGTH_SHORT).show(); 618 619 // Create a little animation to show that the widget can move 620 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 621 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 622 AnimatorSet bounce = new AnimatorSet(); 623 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 624 tyuAnim.setDuration(125); 625 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 626 tydAnim.setDuration(100); 627 bounce.play(tyuAnim).before(tydAnim); 628 bounce.setInterpolator(new AccelerateInterpolator()); 629 bounce.start(); 630 } 631 } 632 633 public boolean onKey(View v, int keyCode, KeyEvent event) { 634 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 635 } 636 637 /* 638 * PagedViewWithDraggableItems implementation 639 */ 640 @Override 641 protected void determineDraggingStart(android.view.MotionEvent ev) { 642 // Disable dragging by pulling an app down for now. 643 } 644 645 private void beginDraggingApplication(View v) { 646 mLauncher.getWorkspace().onDragStartedWithItem(v); 647 mLauncher.getWorkspace().beginDragShared(v, this); 648 } 649 650 private void preloadWidget(final PendingAddWidgetInfo info) { 651 Log.d(TAG, "6557954 Preload widget: " + info.info); 652 final AppWidgetProviderInfo pInfo = info.info; 653 if (pInfo.configure != null) { 654 return; 655 } 656 657 mBindWidgetRunnable = new Runnable() { 658 @Override 659 public void run() { 660 Log.d(TAG, " 6557954 Preload, bind widget: " + info.info); 661 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 662 if (AppWidgetManager.getInstance(mLauncher) 663 .bindAppWidgetIdIfAllowed(mWidgetLoadingId, info.componentName)) { 664 mWidgetCleanupState = WIDGET_BOUND; 665 } 666 } 667 }; 668 post(mBindWidgetRunnable); 669 670 mInflateWidgetRunnable = new Runnable() { 671 @Override 672 public void run() { 673 AppWidgetHostView hostView = mLauncher. 674 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 675 info.boundWidget = hostView; 676 Log.d(TAG, " 6557954 Preload, inflate widget: " + info.info); 677 mWidgetCleanupState = WIDGET_INFLATED; 678 hostView.setVisibility(INVISIBLE); 679 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 680 info.spanY, info, false); 681 682 // We want the first widget layout to be the correct size. This will be important 683 // for width size reporting to the AppWidgetManager. 684 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 685 unScaledSize[1]); 686 lp.x = lp.y = 0; 687 lp.customPosition = true; 688 hostView.setLayoutParams(lp); 689 mLauncher.getDragLayer().addView(hostView); 690 } 691 }; 692 post(mInflateWidgetRunnable); 693 } 694 695 @Override 696 public void onShortPress(View v) { 697 // We are anticipating a long press, and we use this time to load bind and instantiate 698 // the widget. This will need to be cleaned up if it turns out no long press occurs. 699 if (mCreateWidgetInfo != null) { 700 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 701 Log.d(TAG, "**** 6557954 Previous shortpress not cleaned up, cleaning up now: " + mCreateWidgetInfo.info); 702 cleanupWidgetPreloading(false); 703 } 704 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 705 Log.d(TAG, "6557954 Short press triggered for view: " + v + ", widget info: " + mCreateWidgetInfo.info); 706 preloadWidget(mCreateWidgetInfo); 707 } 708 709 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 710 Log.d(TAG, "6557954 Cleaning up widget, was added: " + widgetWasAdded); 711 if (mCreateWidgetInfo != null) { 712 Log.d(TAG, " 6557954 Cleaning up widget, widget info: " + mCreateWidgetInfo.info); 713 } 714 715 if (!widgetWasAdded) { 716 // If the widget was not added, we may need to do further cleanup. 717 PendingAddWidgetInfo info = mCreateWidgetInfo; 718 mCreateWidgetInfo = null; 719 // First step was to allocate a widget id, revert that. 720 if ((mWidgetCleanupState == WIDGET_BOUND || mWidgetCleanupState == WIDGET_INFLATED) && 721 mWidgetLoadingId != -1) { 722 Log.d(TAG, " 6557954 Cleaning up widget, delete widget id"); 723 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 724 } 725 if (mWidgetCleanupState == WIDGET_BOUND) { 726 // We never actually inflated the widget, so remove the callback to do so. 727 Log.d(TAG, " 6557954 Cleaning up widget, remove callbacks"); 728 removeCallbacks(mInflateWidgetRunnable); 729 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 730 // The widget was inflated and added to the DragLayer -- remove it. 731 Log.d(TAG, " 6557954 Cleaning up widget, remove inflated widget from draglayer"); 732 AppWidgetHostView widget = info.boundWidget; 733 mLauncher.getDragLayer().removeView(widget); 734 } 735 } 736 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 737 mWidgetLoadingId = -1; 738 mCreateWidgetInfo = null; 739 PagedViewWidget.resetShortPressTarget(); 740 } 741 742 @Override 743 public void cleanUpShortPress(View v) { 744 Log.d(TAG, "6557954 Cleanup shortpress"); 745 if (!mDraggingWidget) { 746 Log.d(TAG, " 6557954 Cleanup shortpress, cleanup cleanup preloading"); 747 cleanupWidgetPreloading(false); 748 } 749 } 750 751 private boolean beginDraggingWidget(View v) { 752 mDraggingWidget = true; 753 // Get the widget preview as the drag representation 754 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 755 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 756 757 if (createItemInfo instanceof PendingAddWidgetInfo) { 758 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 759 Log.d(TAG, "6557954 Begin dragging widget, view: " + v + ", widget info: " + createWidgetInfo.info); 760 } 761 762 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 763 // we abort the drag. 764 if (image.getDrawable() == null) { 765 Log.d(TAG, " 6557954 Begin dragging widget, abort, no drawable set"); 766 mDraggingWidget = false; 767 return false; 768 } 769 770 // Compose the drag image 771 Bitmap preview; 772 Bitmap outline; 773 float scale = 1f; 774 if (createItemInfo instanceof PendingAddWidgetInfo) { 775 // This can happen in some weird cases involving multi-touch. We can't start dragging 776 // the widget if this is null, so we break out. 777 if (mCreateWidgetInfo == null) { 778 return false; 779 } 780 781 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 782 createItemInfo = createWidgetInfo; 783 int spanX = createItemInfo.spanX; 784 int spanY = createItemInfo.spanY; 785 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 786 createWidgetInfo, true); 787 788 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 789 float minScale = 1.25f; 790 int maxWidth, maxHeight; 791 maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 792 maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 793 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 794 createWidgetInfo.icon, spanX, spanY, maxWidth, maxHeight); 795 796 // Determine the image view drawable scale relative to the preview 797 float[] mv = new float[9]; 798 Matrix m = new Matrix(); 799 m.setRectToRect( 800 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 801 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 802 (float) previewDrawable.getIntrinsicHeight()), 803 Matrix.ScaleToFit.START); 804 m.getValues(mv); 805 scale = (float) mv[0]; 806 } else { 807 PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag(); 808 Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo); 809 preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), 810 icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 811 812 mCanvas.setBitmap(preview); 813 mCanvas.save(); 814 renderDrawableToBitmap(icon, preview, 0, 0, 815 icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); 816 mCanvas.restore(); 817 mCanvas.setBitmap(null); 818 createItemInfo.spanX = createItemInfo.spanY = 1; 819 } 820 821 // We use a custom alpha clip table for the default widget previews 822 Paint alphaClipPaint = null; 823 if (createItemInfo instanceof PendingAddWidgetInfo) { 824 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 825 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 826 alphaClipPaint = new Paint(); 827 alphaClipPaint.setMaskFilter(alphaClipTable); 828 } 829 } 830 831 // Save the preview for the outline generation, then dim the preview 832 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 833 false); 834 835 // Start the drag 836 alphaClipPaint = null; 837 mLauncher.lockScreenOrientation(); 838 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 839 mDragController.startDrag(image, preview, this, createItemInfo, 840 DragController.DRAG_ACTION_COPY, null, scale); 841 outline.recycle(); 842 preview.recycle(); 843 return true; 844 } 845 846 @Override 847 protected boolean beginDragging(final View v) { 848 if (!super.beginDragging(v)) return false; 849 850 if (v instanceof PagedViewIcon) { 851 beginDraggingApplication(v); 852 } else if (v instanceof PagedViewWidget) { 853 if (!beginDraggingWidget(v)) { 854 return false; 855 } 856 } 857 858 // We delay entering spring-loaded mode slightly to make sure the UI 859 // thready is free of any work. 860 postDelayed(new Runnable() { 861 @Override 862 public void run() { 863 // We don't enter spring-loaded mode if the drag has been cancelled 864 if (mLauncher.getDragController().isDragging()) { 865 // Dismiss the cling 866 mLauncher.dismissAllAppsCling(null); 867 868 // Reset the alpha on the dragged icon before we drag 869 resetDrawableState(); 870 871 // Go into spring loaded mode (must happen before we startDrag()) 872 mLauncher.enterSpringLoadedDragMode(); 873 } 874 } 875 }, 150); 876 877 return true; 878 } 879 880 /** 881 * Clean up after dragging. 882 * 883 * @param target where the item was dragged to (can be null if the item was flung) 884 */ 885 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 886 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 887 !(target instanceof DeleteDropTarget))) { 888 // Exit spring loaded mode if we have not successfully dropped or have not handled the 889 // drop in Workspace 890 mLauncher.exitSpringLoadedDragMode(); 891 } 892 mLauncher.unlockScreenOrientation(false); 893 } 894 895 @Override 896 public View getContent() { 897 return null; 898 } 899 900 @Override 901 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 902 mInTransition = true; 903 if (toWorkspace) { 904 cancelAllTasks(); 905 } 906 } 907 908 @Override 909 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 910 } 911 912 @Override 913 public void onLauncherTransitionStep(Launcher l, float t) { 914 } 915 916 @Override 917 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 918 mInTransition = false; 919 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 920 onSyncWidgetPageItems(d); 921 } 922 mDeferredSyncWidgetPageItems.clear(); 923 mForceDrawAllChildrenNextFrame = !toWorkspace; 924 } 925 926 @Override 927 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 928 boolean success) { 929 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 930 if (isFlingToDelete) return; 931 932 endDragging(target, false, success); 933 934 // Display an error message if the drag failed due to there not being enough space on the 935 // target layout we were dropping on. 936 if (!success) { 937 boolean showOutOfSpaceMessage = false; 938 if (target instanceof Workspace) { 939 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 940 Workspace workspace = (Workspace) target; 941 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 942 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 943 if (layout != null) { 944 layout.calculateSpans(itemInfo); 945 showOutOfSpaceMessage = 946 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 947 } 948 } 949 if (showOutOfSpaceMessage) { 950 mLauncher.showOutOfSpaceMessage(false); 951 } 952 953 d.deferDragViewCleanupPostAnimation = false; 954 } 955 cleanupWidgetPreloading(success); 956 mDraggingWidget = false; 957 } 958 959 @Override 960 public void onFlingToDeleteCompleted() { 961 // We just dismiss the drag when we fling, so cleanup here 962 endDragging(null, true, true); 963 cleanupWidgetPreloading(false); 964 mDraggingWidget = false; 965 } 966 967 @Override 968 public boolean supportsFlingToDelete() { 969 return true; 970 } 971 972 @Override 973 protected void onDetachedFromWindow() { 974 super.onDetachedFromWindow(); 975 cancelAllTasks(); 976 } 977 978 public void clearAllWidgetPages() { 979 cancelAllTasks(); 980 int count = getChildCount(); 981 for (int i = 0; i < count; i++) { 982 View v = getPageAt(i); 983 if (v instanceof PagedViewGridLayout) { 984 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 985 mDirtyPageContent.set(i, true); 986 } 987 } 988 } 989 990 private void cancelAllTasks() { 991 // Clean up all the async tasks 992 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 993 while (iter.hasNext()) { 994 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 995 task.cancel(false); 996 iter.remove(); 997 mDirtyPageContent.set(task.page, true); 998 999 // We've already preallocated the views for the data to load into, so clear them as well 1000 View v = getPageAt(task.page); 1001 if (v instanceof PagedViewGridLayout) { 1002 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 1003 } 1004 } 1005 mDeferredSyncWidgetPageItems.clear(); 1006 } 1007 1008 public void setContentType(ContentType type) { 1009 if (type == ContentType.Widgets) { 1010 invalidatePageData(mNumAppsPages, true); 1011 } else if (type == ContentType.Applications) { 1012 invalidatePageData(0, true); 1013 } 1014 } 1015 1016 protected void snapToPage(int whichPage, int delta, int duration) { 1017 super.snapToPage(whichPage, delta, duration); 1018 updateCurrentTab(whichPage); 1019 1020 // Update the thread priorities given the direction lookahead 1021 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1022 while (iter.hasNext()) { 1023 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1024 int pageIndex = task.page; 1025 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 1026 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 1027 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1028 } else { 1029 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 1030 } 1031 } 1032 } 1033 1034 private void updateCurrentTab(int currentPage) { 1035 AppsCustomizeTabHost tabHost = getTabHost(); 1036 if (tabHost != null) { 1037 String tag = tabHost.getCurrentTabTag(); 1038 if (tag != null) { 1039 if (currentPage >= mNumAppsPages && 1040 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 1041 tabHost.setCurrentTabFromContent(ContentType.Widgets); 1042 } else if (currentPage < mNumAppsPages && 1043 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1044 tabHost.setCurrentTabFromContent(ContentType.Applications); 1045 } 1046 } 1047 } 1048 } 1049 1050 /* 1051 * Apps PagedView implementation 1052 */ 1053 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 1054 int childCount = layout.getChildCount(); 1055 for (int i = 0; i < childCount; ++i) { 1056 layout.getChildAt(i).setVisibility(visibility); 1057 } 1058 } 1059 private void setupPage(PagedViewCellLayout layout) { 1060 layout.setCellCount(mCellCountX, mCellCountY); 1061 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 1062 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1063 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1064 1065 // Note: We force a measure here to get around the fact that when we do layout calculations 1066 // immediately after syncing, we don't have a proper width. That said, we already know the 1067 // expected page width, so we can actually optimize by hiding all the TextView-based 1068 // children that are expensive to measure, and let that happen naturally later. 1069 setVisibilityOnChildren(layout, View.GONE); 1070 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1071 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1072 layout.setMinimumWidth(getPageContentWidth()); 1073 layout.measure(widthSpec, heightSpec); 1074 setVisibilityOnChildren(layout, View.VISIBLE); 1075 } 1076 1077 public void syncAppsPageItems(int page, boolean immediate) { 1078 // ensure that we have the right number of items on the pages 1079 int numCells = mCellCountX * mCellCountY; 1080 int startIndex = page * numCells; 1081 int endIndex = Math.min(startIndex + numCells, mApps.size()); 1082 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 1083 1084 layout.removeAllViewsOnPage(); 1085 ArrayList<Object> items = new ArrayList<Object>(); 1086 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 1087 for (int i = startIndex; i < endIndex; ++i) { 1088 ApplicationInfo info = mApps.get(i); 1089 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 1090 R.layout.apps_customize_application, layout, false); 1091 icon.applyFromApplicationInfo(info, true, this); 1092 icon.setOnClickListener(this); 1093 icon.setOnLongClickListener(this); 1094 icon.setOnTouchListener(this); 1095 icon.setOnKeyListener(this); 1096 1097 int index = i - startIndex; 1098 int x = index % mCellCountX; 1099 int y = index / mCellCountX; 1100 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 1101 1102 items.add(info); 1103 images.add(info.iconBitmap); 1104 } 1105 1106 layout.createHardwareLayers(); 1107 } 1108 1109 /** 1110 * A helper to return the priority for loading of the specified widget page. 1111 */ 1112 private int getWidgetPageLoadPriority(int page) { 1113 // If we are snapping to another page, use that index as the target page index 1114 int toPage = mCurrentPage; 1115 if (mNextPage > -1) { 1116 toPage = mNextPage; 1117 } 1118 1119 // We use the distance from the target page as an initial guess of priority, but if there 1120 // are no pages of higher priority than the page specified, then bump up the priority of 1121 // the specified page. 1122 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1123 int minPageDiff = Integer.MAX_VALUE; 1124 while (iter.hasNext()) { 1125 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1126 minPageDiff = Math.abs(task.page - toPage); 1127 } 1128 1129 int rawPageDiff = Math.abs(page - toPage); 1130 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1131 } 1132 /** 1133 * Return the appropriate thread priority for loading for a given page (we give the current 1134 * page much higher priority) 1135 */ 1136 private int getThreadPriorityForPage(int page) { 1137 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1138 int pageDiff = getWidgetPageLoadPriority(page); 1139 if (pageDiff <= 0) { 1140 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1141 } else if (pageDiff <= 1) { 1142 return Process.THREAD_PRIORITY_LOWEST; 1143 } else { 1144 return Process.THREAD_PRIORITY_LOWEST; 1145 } 1146 } 1147 private int getSleepForPage(int page) { 1148 int pageDiff = getWidgetPageLoadPriority(page); 1149 return Math.max(0, pageDiff * sPageSleepDelay); 1150 } 1151 /** 1152 * Creates and executes a new AsyncTask to load a page of widget previews. 1153 */ 1154 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1155 int cellWidth, int cellHeight, int cellCountX) { 1156 1157 // Prune all tasks that are no longer needed 1158 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1159 while (iter.hasNext()) { 1160 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1161 int taskPage = task.page; 1162 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1163 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1164 task.cancel(false); 1165 iter.remove(); 1166 } else { 1167 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1168 } 1169 } 1170 1171 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1172 final int sleepMs = getSleepForPage(page); 1173 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1174 new AsyncTaskCallback() { 1175 @Override 1176 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1177 try { 1178 try { 1179 Thread.sleep(sleepMs); 1180 } catch (Exception e) {} 1181 loadWidgetPreviewsInBackground(task, data); 1182 } finally { 1183 if (task.isCancelled()) { 1184 data.cleanup(true); 1185 } 1186 } 1187 } 1188 }, 1189 new AsyncTaskCallback() { 1190 @Override 1191 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1192 mRunningTasks.remove(task); 1193 if (task.isCancelled()) return; 1194 // do cleanup inside onSyncWidgetPageItems 1195 onSyncWidgetPageItems(data); 1196 } 1197 }); 1198 1199 // Ensure that the task is appropriately prioritized and runs in parallel 1200 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1201 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1202 t.setThreadPriority(getThreadPriorityForPage(page)); 1203 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1204 mRunningTasks.add(t); 1205 } 1206 1207 /* 1208 * Widgets PagedView implementation 1209 */ 1210 private void setupPage(PagedViewGridLayout layout) { 1211 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1212 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1213 1214 // Note: We force a measure here to get around the fact that when we do layout calculations 1215 // immediately after syncing, we don't have a proper width. 1216 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1217 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1218 layout.setMinimumWidth(getPageContentWidth()); 1219 layout.measure(widthSpec, heightSpec); 1220 } 1221 1222 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1223 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 1224 } 1225 1226 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1227 float scale) { 1228 if (bitmap != null) { 1229 Canvas c = new Canvas(bitmap); 1230 c.scale(scale, scale); 1231 Rect oldBounds = d.copyBounds(); 1232 d.setBounds(x, y, x + w, y + h); 1233 d.draw(c); 1234 d.setBounds(oldBounds); // Restore the bounds 1235 c.setBitmap(null); 1236 } 1237 } 1238 1239 private Bitmap getShortcutPreview(ResolveInfo info, int maxWidth, int maxHeight) { 1240 Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 1241 final Canvas c = mCachedShortcutPreviewCanvas.get(); 1242 if (tempBitmap == null || 1243 tempBitmap.getWidth() != maxWidth || 1244 tempBitmap.getHeight() != maxHeight) { 1245 tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1246 mCachedShortcutPreviewBitmap.set(tempBitmap); 1247 } else { 1248 c.setBitmap(tempBitmap); 1249 c.drawColor(0, PorterDuff.Mode.CLEAR); 1250 c.setBitmap(null); 1251 } 1252 // Render the icon 1253 Drawable icon = mIconCache.getFullResIcon(info); 1254 1255 int paddingTop = 1256 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 1257 int paddingLeft = 1258 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 1259 int paddingRight = 1260 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 1261 1262 int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 1263 float scaleSize = scaledIconWidth / (float) mAppIconSize; 1264 1265 renderDrawableToBitmap( 1266 icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 1267 1268 Bitmap preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1269 c.setBitmap(preview); 1270 Paint p = mCachedShortcutPreviewPaint.get(); 1271 if (p == null) { 1272 p = new Paint(); 1273 ColorMatrix colorMatrix = new ColorMatrix(); 1274 colorMatrix.setSaturation(0); 1275 p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 1276 p.setAlpha((int) (255 * 0.06f)); 1277 //float density = 1f; 1278 //p.setMaskFilter(new BlurMaskFilter(15*density, BlurMaskFilter.Blur.NORMAL)); 1279 mCachedShortcutPreviewPaint.set(p); 1280 } 1281 c.drawBitmap(tempBitmap, 0, 0, p); 1282 c.setBitmap(null); 1283 1284 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 1285 1286 return preview; 1287 } 1288 1289 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, 1290 int iconId, int cellHSpan, int cellVSpan, int maxWidth, 1291 int maxHeight) { 1292 // Load the preview image if possible 1293 String packageName = provider.getPackageName(); 1294 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1295 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1296 1297 Drawable drawable = null; 1298 if (previewImage != 0) { 1299 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1300 if (drawable == null) { 1301 Log.w(TAG, "Can't load widget preview drawable 0x" + 1302 Integer.toHexString(previewImage) + " for provider: " + provider); 1303 } 1304 } 1305 1306 int bitmapWidth; 1307 int bitmapHeight; 1308 Bitmap defaultPreview = null; 1309 boolean widgetPreviewExists = (drawable != null); 1310 if (widgetPreviewExists) { 1311 bitmapWidth = drawable.getIntrinsicWidth(); 1312 bitmapHeight = drawable.getIntrinsicHeight(); 1313 } else { 1314 // Generate a preview image if we couldn't load one 1315 if (cellHSpan < 1) cellHSpan = 1; 1316 if (cellVSpan < 1) cellVSpan = 1; 1317 1318 BitmapDrawable previewDrawable = (BitmapDrawable) getResources() 1319 .getDrawable(R.drawable.widget_preview_tile); 1320 final int previewDrawableWidth = previewDrawable 1321 .getIntrinsicWidth(); 1322 final int previewDrawableHeight = previewDrawable 1323 .getIntrinsicHeight(); 1324 bitmapWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 1325 bitmapHeight = previewDrawableHeight * cellVSpan; 1326 1327 defaultPreview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1328 Config.ARGB_8888); 1329 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1330 c.setBitmap(defaultPreview); 1331 previewDrawable.setBounds(0, 0, bitmapWidth, bitmapHeight); 1332 previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 1333 Shader.TileMode.REPEAT); 1334 previewDrawable.draw(c); 1335 c.setBitmap(null); 1336 1337 // Draw the icon in the top left corner 1338 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1339 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1340 float iconScale = Math.min((float) smallestSide 1341 / (mAppIconSize + 2 * minOffset), 1f); 1342 1343 try { 1344 Drawable icon = null; 1345 int hoffset = 1346 (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 1347 int yoffset = 1348 (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 1349 if (iconId > 0) 1350 icon = mIconCache.getFullResIcon(packageName, iconId); 1351 Resources resources = mLauncher.getResources(); 1352 if (icon != null) { 1353 renderDrawableToBitmap(icon, defaultPreview, hoffset, 1354 yoffset, (int) (mAppIconSize * iconScale), 1355 (int) (mAppIconSize * iconScale)); 1356 } 1357 } catch (Resources.NotFoundException e) { 1358 } 1359 } 1360 1361 // Scale to fit width only - let the widget preview be clipped in the 1362 // vertical dimension 1363 float scale = 1f; 1364 if (bitmapWidth > maxWidth) { 1365 scale = maxWidth / (float) bitmapWidth; 1366 } 1367 if (scale != 1f) { 1368 bitmapWidth = (int) (scale * bitmapWidth); 1369 bitmapHeight = (int) (scale * bitmapHeight); 1370 } 1371 1372 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1373 Config.ARGB_8888); 1374 1375 // Draw the scaled preview into the final bitmap 1376 if (widgetPreviewExists) { 1377 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, 1378 bitmapHeight); 1379 } else { 1380 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1381 final Rect src = mCachedAppWidgetPreviewSrcRect.get(); 1382 final Rect dest = mCachedAppWidgetPreviewDestRect.get(); 1383 c.setBitmap(preview); 1384 src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); 1385 dest.set(0, 0, preview.getWidth(), preview.getHeight()); 1386 1387 Paint p = mCachedAppWidgetPreviewPaint.get(); 1388 if (p == null) { 1389 p = new Paint(); 1390 p.setFilterBitmap(true); 1391 mCachedAppWidgetPreviewPaint.set(p); 1392 } 1393 c.drawBitmap(defaultPreview, src, dest, p); 1394 c.setBitmap(null); 1395 } 1396 return preview; 1397 } 1398 1399 public void syncWidgetPageItems(final int page, final boolean immediate) { 1400 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1401 1402 // Calculate the dimensions of each cell we are giving to each widget 1403 final ArrayList<Object> items = new ArrayList<Object>(); 1404 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1405 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1406 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1407 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1408 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1409 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1410 1411 // Prepare the set of widgets to load previews for in the background 1412 int offset = (page - mNumAppsPages) * numItemsPerPage; 1413 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1414 items.add(mWidgets.get(i)); 1415 } 1416 1417 // Prepopulate the pages with the other widget info, and fill in the previews later 1418 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1419 layout.setColumnCount(layout.getCellCountX()); 1420 for (int i = 0; i < items.size(); ++i) { 1421 Object rawInfo = items.get(i); 1422 PendingAddItemInfo createItemInfo = null; 1423 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1424 R.layout.apps_customize_widget, layout, false); 1425 if (rawInfo instanceof AppWidgetProviderInfo) { 1426 // Fill in the widget information 1427 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1428 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1429 1430 // Determine the widget spans and min resize spans. 1431 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1432 createItemInfo.spanX = spanXY[0]; 1433 createItemInfo.spanY = spanXY[1]; 1434 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1435 createItemInfo.minSpanX = minSpanXY[0]; 1436 createItemInfo.minSpanY = minSpanXY[1]; 1437 1438 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1439 widget.setTag(createItemInfo); 1440 widget.setShortPressListener(this); 1441 } else if (rawInfo instanceof ResolveInfo) { 1442 // Fill in the shortcuts information 1443 ResolveInfo info = (ResolveInfo) rawInfo; 1444 createItemInfo = new PendingAddShortcutInfo(info.activityInfo); 1445 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1446 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1447 info.activityInfo.name); 1448 widget.applyFromResolveInfo(mPackageManager, info); 1449 widget.setTag(createItemInfo); 1450 } 1451 widget.setOnClickListener(this); 1452 widget.setOnLongClickListener(this); 1453 widget.setOnTouchListener(this); 1454 widget.setOnKeyListener(this); 1455 1456 // Layout each widget 1457 int ix = i % mWidgetCountX; 1458 int iy = i / mWidgetCountX; 1459 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1460 GridLayout.spec(iy, GridLayout.LEFT), 1461 GridLayout.spec(ix, GridLayout.TOP)); 1462 lp.width = cellWidth; 1463 lp.height = cellHeight; 1464 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1465 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1466 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1467 layout.addView(widget, lp); 1468 } 1469 1470 // wait until a call on onLayout to start loading, because 1471 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1472 // TODO: can we do a measure/layout immediately? 1473 layout.setOnLayoutListener(new Runnable() { 1474 public void run() { 1475 // Load the widget previews 1476 int maxPreviewWidth = cellWidth; 1477 int maxPreviewHeight = cellHeight; 1478 if (layout.getChildCount() > 0) { 1479 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1480 int[] maxSize = w.getPreviewSize(); 1481 maxPreviewWidth = maxSize[0]; 1482 maxPreviewHeight = maxSize[1]; 1483 } 1484 if (immediate) { 1485 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1486 maxPreviewWidth, maxPreviewHeight, null, null); 1487 loadWidgetPreviewsInBackground(null, data); 1488 onSyncWidgetPageItems(data); 1489 } else { 1490 prepareLoadWidgetPreviewsTask(page, items, 1491 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1492 } 1493 } 1494 }); 1495 } 1496 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1497 AsyncTaskPageData data) { 1498 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1499 // previews synchronously 1500 if (task != null) { 1501 // Ensure that this task starts running at the correct priority 1502 task.syncThreadPriority(); 1503 } 1504 1505 // Load each of the widget/shortcut previews 1506 ArrayList<Object> items = data.items; 1507 ArrayList<Bitmap> images = data.generatedImages; 1508 int count = items.size(); 1509 for (int i = 0; i < count; ++i) { 1510 if (task != null) { 1511 // Ensure we haven't been cancelled yet 1512 if (task.isCancelled()) break; 1513 // Before work on each item, ensure that this task is running at the correct 1514 // priority 1515 task.syncThreadPriority(); 1516 } 1517 1518 Object rawInfo = items.get(i); 1519 if (rawInfo instanceof AppWidgetProviderInfo) { 1520 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1521 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1522 1523 int maxWidth = Math.min(data.maxImageWidth, 1524 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1525 int maxHeight = Math.min(data.maxImageHeight, 1526 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1527 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1528 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1529 images.add(b); 1530 } else if (rawInfo instanceof ResolveInfo) { 1531 // Fill in the shortcuts information 1532 ResolveInfo info = (ResolveInfo) rawInfo; 1533 images.add(getShortcutPreview(info, data.maxImageWidth, data.maxImageHeight)); 1534 } 1535 } 1536 } 1537 1538 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1539 if (mInTransition) { 1540 mDeferredSyncWidgetPageItems.add(data); 1541 return; 1542 } 1543 try { 1544 int page = data.page; 1545 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1546 1547 ArrayList<Object> items = data.items; 1548 int count = items.size(); 1549 for (int i = 0; i < count; ++i) { 1550 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1551 if (widget != null) { 1552 Bitmap preview = data.generatedImages.get(i); 1553 widget.applyPreview(new FastBitmapDrawable(preview), i); 1554 } 1555 } 1556 1557 layout.createHardwareLayer(); 1558 invalidate(); 1559 1560 // Update all thread priorities 1561 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1562 while (iter.hasNext()) { 1563 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1564 int pageIndex = task.page; 1565 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1566 } 1567 } finally { 1568 data.cleanup(false); 1569 } 1570 } 1571 1572 @Override 1573 public void syncPages() { 1574 removeAllViews(); 1575 cancelAllTasks(); 1576 1577 Context context = getContext(); 1578 for (int j = 0; j < mNumWidgetPages; ++j) { 1579 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1580 mWidgetCountY); 1581 setupPage(layout); 1582 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1583 LayoutParams.MATCH_PARENT)); 1584 } 1585 1586 for (int i = 0; i < mNumAppsPages; ++i) { 1587 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1588 setupPage(layout); 1589 addView(layout); 1590 } 1591 } 1592 1593 @Override 1594 public void syncPageItems(int page, boolean immediate) { 1595 if (page < mNumAppsPages) { 1596 syncAppsPageItems(page, immediate); 1597 } else { 1598 syncWidgetPageItems(page, immediate); 1599 } 1600 } 1601 1602 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1603 // it is in the z-order. This is important to insure touch events are handled correctly. 1604 View getPageAt(int index) { 1605 return getChildAt(indexToPage(index)); 1606 } 1607 1608 @Override 1609 protected int indexToPage(int index) { 1610 return getChildCount() - index - 1; 1611 } 1612 1613 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1614 @Override 1615 protected void screenScrolled(int screenCenter) { 1616 super.screenScrolled(screenCenter); 1617 1618 for (int i = 0; i < getChildCount(); i++) { 1619 View v = getPageAt(i); 1620 if (v != null) { 1621 float scrollProgress = getScrollProgress(screenCenter, v, i); 1622 1623 float interpolatedProgress = 1624 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1625 float scale = (1 - interpolatedProgress) + 1626 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1627 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1628 1629 float alpha; 1630 1631 if (scrollProgress < 0) { 1632 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1633 1 - Math.abs(scrollProgress)) : 1.0f; 1634 } else { 1635 // On large screens we need to fade the page as it nears its leftmost position 1636 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1637 } 1638 1639 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1640 int pageWidth = v.getMeasuredWidth(); 1641 int pageHeight = v.getMeasuredHeight(); 1642 1643 if (PERFORM_OVERSCROLL_ROTATION) { 1644 if (i == 0 && scrollProgress < 0) { 1645 // Overscroll to the left 1646 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1647 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1648 scale = 1.0f; 1649 alpha = 1.0f; 1650 // On the first page, we don't want the page to have any lateral motion 1651 translationX = 0; 1652 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1653 // Overscroll to the right 1654 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1655 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1656 scale = 1.0f; 1657 alpha = 1.0f; 1658 // On the last page, we don't want the page to have any lateral motion. 1659 translationX = 0; 1660 } else { 1661 v.setPivotY(pageHeight / 2.0f); 1662 v.setPivotX(pageWidth / 2.0f); 1663 v.setRotationY(0f); 1664 } 1665 } 1666 1667 v.setTranslationX(translationX); 1668 v.setScaleX(scale); 1669 v.setScaleY(scale); 1670 v.setAlpha(alpha); 1671 1672 // If the view has 0 alpha, we set it to be invisible so as to prevent 1673 // it from accepting touches 1674 if (alpha == 0) { 1675 v.setVisibility(INVISIBLE); 1676 } else if (v.getVisibility() != VISIBLE) { 1677 v.setVisibility(VISIBLE); 1678 } 1679 } 1680 } 1681 } 1682 1683 protected void overScroll(float amount) { 1684 acceleratedOverScroll(amount); 1685 } 1686 1687 /** 1688 * Used by the parent to get the content width to set the tab bar to 1689 * @return 1690 */ 1691 public int getPageContentWidth() { 1692 return mContentWidth; 1693 } 1694 1695 @Override 1696 protected void onPageEndMoving() { 1697 super.onPageEndMoving(); 1698 mForceDrawAllChildrenNextFrame = true; 1699 // We reset the save index when we change pages so that it will be recalculated on next 1700 // rotation 1701 mSaveInstanceStateItemIndex = -1; 1702 } 1703 1704 /* 1705 * AllAppsView implementation 1706 */ 1707 @Override 1708 public void setup(Launcher launcher, DragController dragController) { 1709 mLauncher = launcher; 1710 mDragController = dragController; 1711 } 1712 @Override 1713 public void zoom(float zoom, boolean animate) { 1714 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1715 } 1716 @Override 1717 public boolean isVisible() { 1718 return (getVisibility() == VISIBLE); 1719 } 1720 @Override 1721 public boolean isAnimating() { 1722 return false; 1723 } 1724 @Override 1725 public void setApps(ArrayList<ApplicationInfo> list) { 1726 mApps = list; 1727 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1728 updatePageCounts(); 1729 1730 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1731 // request a layout to do this test and invalidate the page data when ready. 1732 if (testDataReady()) requestLayout(); 1733 } 1734 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1735 // We add it in place, in alphabetical order 1736 int count = list.size(); 1737 for (int i = 0; i < count; ++i) { 1738 ApplicationInfo info = list.get(i); 1739 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1740 if (index < 0) { 1741 mApps.add(-(index + 1), info); 1742 } 1743 } 1744 } 1745 @Override 1746 public void addApps(ArrayList<ApplicationInfo> list) { 1747 addAppsWithoutInvalidate(list); 1748 updatePageCounts(); 1749 invalidatePageData(); 1750 } 1751 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1752 ComponentName removeComponent = item.intent.getComponent(); 1753 int length = list.size(); 1754 for (int i = 0; i < length; ++i) { 1755 ApplicationInfo info = list.get(i); 1756 if (info.intent.getComponent().equals(removeComponent)) { 1757 return i; 1758 } 1759 } 1760 return -1; 1761 } 1762 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1763 // loop through all the apps and remove apps that have the same component 1764 int length = list.size(); 1765 for (int i = 0; i < length; ++i) { 1766 ApplicationInfo info = list.get(i); 1767 int removeIndex = findAppByComponent(mApps, info); 1768 if (removeIndex > -1) { 1769 mApps.remove(removeIndex); 1770 } 1771 } 1772 } 1773 @Override 1774 public void removeApps(ArrayList<ApplicationInfo> list) { 1775 removeAppsWithoutInvalidate(list); 1776 updatePageCounts(); 1777 invalidatePageData(); 1778 } 1779 @Override 1780 public void updateApps(ArrayList<ApplicationInfo> list) { 1781 // We remove and re-add the updated applications list because it's properties may have 1782 // changed (ie. the title), and this will ensure that the items will be in their proper 1783 // place in the list. 1784 removeAppsWithoutInvalidate(list); 1785 addAppsWithoutInvalidate(list); 1786 updatePageCounts(); 1787 1788 invalidatePageData(); 1789 } 1790 1791 @Override 1792 public void reset() { 1793 // If we have reset, then we should not continue to restore the previous state 1794 mSaveInstanceStateItemIndex = -1; 1795 1796 AppsCustomizeTabHost tabHost = getTabHost(); 1797 String tag = tabHost.getCurrentTabTag(); 1798 if (tag != null) { 1799 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1800 tabHost.setCurrentTabFromContent(ContentType.Applications); 1801 } 1802 } 1803 1804 if (mCurrentPage != 0) { 1805 invalidatePageData(0); 1806 } 1807 } 1808 1809 private AppsCustomizeTabHost getTabHost() { 1810 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1811 } 1812 1813 @Override 1814 public void dumpState() { 1815 // TODO: Dump information related to current list of Applications, Widgets, etc. 1816 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1817 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1818 } 1819 1820 private void dumpAppWidgetProviderInfoList(String tag, String label, 1821 ArrayList<Object> list) { 1822 Log.d(tag, label + " size=" + list.size()); 1823 for (Object i: list) { 1824 if (i instanceof AppWidgetProviderInfo) { 1825 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1826 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1827 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1828 + " initialLayout=" + info.initialLayout 1829 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1830 } else if (i instanceof ResolveInfo) { 1831 ResolveInfo info = (ResolveInfo) i; 1832 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1833 + info.icon); 1834 } 1835 } 1836 } 1837 1838 @Override 1839 public void surrender() { 1840 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1841 // should stop this now. 1842 1843 // Stop all background tasks 1844 cancelAllTasks(); 1845 } 1846 1847 @Override 1848 public void iconPressed(PagedViewIcon icon) { 1849 // Reset the previously pressed icon and store a reference to the pressed icon so that 1850 // we can reset it on return to Launcher (in Launcher.onResume()) 1851 if (mPressedIcon != null) { 1852 mPressedIcon.resetDrawableState(); 1853 } 1854 mPressedIcon = icon; 1855 } 1856 1857 public void resetDrawableState() { 1858 if (mPressedIcon != null) { 1859 mPressedIcon.resetDrawableState(); 1860 mPressedIcon = null; 1861 } 1862 } 1863 1864 /* 1865 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1866 * widget previews in the background with the AsyncTasks. 1867 */ 1868 final static int sLookBehindPageCount = 2; 1869 final static int sLookAheadPageCount = 2; 1870 protected int getAssociatedLowerPageBound(int page) { 1871 final int count = getChildCount(); 1872 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1873 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1874 return windowMinIndex; 1875 } 1876 protected int getAssociatedUpperPageBound(int page) { 1877 final int count = getChildCount(); 1878 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1879 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1880 count - 1); 1881 return windowMaxIndex; 1882 } 1883 1884 @Override 1885 protected String getCurrentPageDescription() { 1886 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1887 int stringId = R.string.default_scroll_format; 1888 int count = 0; 1889 1890 if (page < mNumAppsPages) { 1891 stringId = R.string.apps_customize_apps_scroll_format; 1892 count = mNumAppsPages; 1893 } else { 1894 page -= mNumAppsPages; 1895 stringId = R.string.apps_customize_widgets_scroll_format; 1896 count = mNumWidgetPages; 1897 } 1898 1899 return String.format(getContext().getString(stringId), page + 1, count); 1900 } 1901} 1902