AppsCustomizePagedView.java revision 51600e4b63a2cecd5637f0b39845c52bdcd40247
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.MaskFilter; 39import android.graphics.Matrix; 40import android.graphics.Paint; 41import android.graphics.PorterDuff; 42import android.graphics.Rect; 43import android.graphics.RectF; 44import android.graphics.Shader; 45import android.graphics.TableMaskFilter; 46import android.graphics.drawable.BitmapDrawable; 47import android.graphics.drawable.Drawable; 48import android.os.AsyncTask; 49import android.os.Process; 50import android.util.AttributeSet; 51import android.util.Log; 52import android.view.Gravity; 53import android.view.KeyEvent; 54import android.view.LayoutInflater; 55import android.view.MotionEvent; 56import android.view.View; 57import android.view.ViewGroup; 58import android.view.animation.AccelerateInterpolator; 59import android.view.animation.DecelerateInterpolator; 60import android.widget.GridLayout; 61import android.widget.ImageView; 62import android.widget.Toast; 63 64import com.android.launcher.R; 65import com.android.launcher2.DropTarget.DragObject; 66 67import java.lang.ref.WeakReference; 68import java.util.ArrayList; 69import java.util.Collections; 70import java.util.Iterator; 71import java.util.List; 72 73/** 74 * A simple callback interface which also provides the results of the task. 75 */ 76interface AsyncTaskCallback { 77 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 78} 79 80/** 81 * The data needed to perform either of the custom AsyncTasks. 82 */ 83class AsyncTaskPageData { 84 enum Type { 85 LoadWidgetPreviewData 86 } 87 88 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 89 AsyncTaskCallback postR) { 90 page = p; 91 items = l; 92 sourceImages = si; 93 generatedImages = new ArrayList<Bitmap>(); 94 maxImageWidth = maxImageHeight = -1; 95 doInBackgroundCallback = bgR; 96 postExecuteCallback = postR; 97 } 98 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 99 AsyncTaskCallback postR) { 100 page = p; 101 items = l; 102 generatedImages = new ArrayList<Bitmap>(); 103 maxImageWidth = cw; 104 maxImageHeight = ch; 105 doInBackgroundCallback = bgR; 106 postExecuteCallback = postR; 107 } 108 void cleanup(boolean cancelled) { 109 // Clean up any references to source/generated bitmaps 110 if (sourceImages != null) { 111 if (cancelled) { 112 for (Bitmap b : sourceImages) { 113 b.recycle(); 114 } 115 } 116 sourceImages.clear(); 117 } 118 if (generatedImages != null) { 119 if (cancelled) { 120 for (Bitmap b : generatedImages) { 121 b.recycle(); 122 } 123 } 124 generatedImages.clear(); 125 } 126 } 127 int page; 128 ArrayList<Object> items; 129 ArrayList<Bitmap> sourceImages; 130 ArrayList<Bitmap> generatedImages; 131 int maxImageWidth; 132 int maxImageHeight; 133 AsyncTaskCallback doInBackgroundCallback; 134 AsyncTaskCallback postExecuteCallback; 135} 136 137/** 138 * A generic template for an async task used in AppsCustomize. 139 */ 140class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 141 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 142 page = p; 143 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 144 dataType = ty; 145 } 146 @Override 147 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 148 if (params.length != 1) return null; 149 // Load each of the widget previews in the background 150 params[0].doInBackgroundCallback.run(this, params[0]); 151 return params[0]; 152 } 153 @Override 154 protected void onPostExecute(AsyncTaskPageData result) { 155 // All the widget previews are loaded, so we can just callback to inflate the page 156 result.postExecuteCallback.run(this, result); 157 } 158 159 void setThreadPriority(int p) { 160 threadPriority = p; 161 } 162 void syncThreadPriority() { 163 Process.setThreadPriority(threadPriority); 164 } 165 166 // The page that this async task is associated with 167 AsyncTaskPageData.Type dataType; 168 int page; 169 int threadPriority; 170} 171 172abstract class WeakReferenceThreadLocal<T> { 173 private ThreadLocal<WeakReference<T>> mThreadLocal; 174 public WeakReferenceThreadLocal() { 175 mThreadLocal = new ThreadLocal<WeakReference<T>>(); 176 } 177 178 abstract T initialValue(); 179 180 public void set(T t) { 181 mThreadLocal.set(new WeakReference<T>(t)); 182 } 183 184 public T get() { 185 WeakReference<T> reference = mThreadLocal.get(); 186 T obj; 187 if (reference == null) { 188 obj = initialValue(); 189 mThreadLocal.set(new WeakReference<T>(obj)); 190 return obj; 191 } else { 192 obj = reference.get(); 193 if (obj == null) { 194 obj = initialValue(); 195 mThreadLocal.set(new WeakReference<T>(obj)); 196 } 197 return obj; 198 } 199 } 200} 201 202class CanvasCache extends WeakReferenceThreadLocal<Canvas> { 203 @Override 204 protected Canvas initialValue() { 205 return new Canvas(); 206 } 207} 208 209class PaintCache extends WeakReferenceThreadLocal<Paint> { 210 @Override 211 protected Paint initialValue() { 212 return null; 213 } 214} 215 216class BitmapCache extends WeakReferenceThreadLocal<Bitmap> { 217 @Override 218 protected Bitmap initialValue() { 219 return null; 220 } 221} 222 223class RectCache extends WeakReferenceThreadLocal<Rect> { 224 @Override 225 protected Rect initialValue() { 226 return new Rect(); 227 } 228} 229 230/** 231 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 232 */ 233public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 234 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource, 235 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener, 236 LauncherTransitionable { 237 static final String TAG = "AppsCustomizePagedView"; 238 239 /** 240 * The different content types that this paged view can show. 241 */ 242 public enum ContentType { 243 Applications, 244 Widgets 245 } 246 247 // Refs 248 private Launcher mLauncher; 249 private DragController mDragController; 250 private final LayoutInflater mLayoutInflater; 251 private final PackageManager mPackageManager; 252 253 // Save and Restore 254 private int mSaveInstanceStateItemIndex = -1; 255 private PagedViewIcon mPressedIcon; 256 257 // Content 258 private ArrayList<ApplicationInfo> mApps; 259 private ArrayList<Object> mWidgets; 260 261 // Cling 262 private boolean mHasShownAllAppsCling; 263 private int mClingFocusedX; 264 private int mClingFocusedY; 265 266 // Caching 267 private Canvas mCanvas; 268 private IconCache mIconCache; 269 270 // Dimens 271 private int mContentWidth; 272 private int mAppIconSize; 273 private int mMaxAppCellCountX, mMaxAppCellCountY; 274 private int mWidgetCountX, mWidgetCountY; 275 private int mWidgetWidthGap, mWidgetHeightGap; 276 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 277 private PagedViewCellLayout mWidgetSpacingLayout; 278 private int mNumAppsPages; 279 private int mNumWidgetPages; 280 281 // Relating to the scroll and overscroll effects 282 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 283 private static float CAMERA_DISTANCE = 6500; 284 private static float TRANSITION_SCALE_FACTOR = 0.74f; 285 private static float TRANSITION_PIVOT = 0.65f; 286 private static float TRANSITION_MAX_ROTATION = 22; 287 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 288 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 289 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 290 291 // Previews & outlines 292 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 293 private static final int sPageSleepDelay = 200; 294 295 private Runnable mInflateWidgetRunnable = null; 296 private Runnable mBindWidgetRunnable = null; 297 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 298 static final int WIDGET_PRELOAD_PENDING = 0; 299 static final int WIDGET_BOUND = 1; 300 static final int WIDGET_INFLATED = 2; 301 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 302 int mWidgetLoadingId = -1; 303 PendingAddWidgetInfo mCreateWidgetInfo = null; 304 private boolean mDraggingWidget = false; 305 306 // Deferral of loading widget previews during launcher transitions 307 private boolean mInTransition; 308 private ArrayList<AsyncTaskPageData> mDeferredSyncWidgetPageItems = 309 new ArrayList<AsyncTaskPageData>(); 310 private ArrayList<Runnable> mDeferredPrepareLoadWidgetPreviewsTasks = 311 new ArrayList<Runnable>(); 312 313 // Used for drawing shortcut previews 314 BitmapCache mCachedShortcutPreviewBitmap = new BitmapCache(); 315 PaintCache mCachedShortcutPreviewPaint = new PaintCache(); 316 CanvasCache mCachedShortcutPreviewCanvas = new CanvasCache(); 317 318 // Used for drawing widget previews 319 CanvasCache mCachedAppWidgetPreviewCanvas = new CanvasCache(); 320 RectCache mCachedAppWidgetPreviewSrcRect = new RectCache(); 321 RectCache mCachedAppWidgetPreviewDestRect = new RectCache(); 322 PaintCache mCachedAppWidgetPreviewPaint = new PaintCache(); 323 324 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 325 super(context, attrs); 326 mLayoutInflater = LayoutInflater.from(context); 327 mPackageManager = context.getPackageManager(); 328 mApps = new ArrayList<ApplicationInfo>(); 329 mWidgets = new ArrayList<Object>(); 330 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 331 mCanvas = new Canvas(); 332 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 333 334 // Save the default widget preview background 335 Resources resources = context.getResources(); 336 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 337 338 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 339 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 340 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 341 mWidgetWidthGap = 342 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 343 mWidgetHeightGap = 344 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 345 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 346 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 347 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 348 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 349 a.recycle(); 350 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 351 352 // The padding on the non-matched dimension for the default widget preview icons 353 // (top + bottom) 354 mFadeInAdjacentScreens = false; 355 356 // Unless otherwise specified this view is important for accessibility. 357 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 358 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 359 } 360 } 361 362 @Override 363 protected void init() { 364 super.init(); 365 mCenterPagesVertically = false; 366 367 Context context = getContext(); 368 Resources r = context.getResources(); 369 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 370 } 371 372 @Override 373 protected void onUnhandledTap(MotionEvent ev) { 374 if (LauncherApplication.isScreenLarge()) { 375 // Dismiss AppsCustomize if we tap 376 mLauncher.showWorkspace(true); 377 } 378 } 379 380 /** Returns the item index of the center item on this page so that we can restore to this 381 * item index when we rotate. */ 382 private int getMiddleComponentIndexOnCurrentPage() { 383 int i = -1; 384 if (getPageCount() > 0) { 385 int currentPage = getCurrentPage(); 386 if (currentPage < mNumAppsPages) { 387 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 388 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 389 int numItemsPerPage = mCellCountX * mCellCountY; 390 int childCount = childrenLayout.getChildCount(); 391 if (childCount > 0) { 392 i = (currentPage * numItemsPerPage) + (childCount / 2); 393 } 394 } else { 395 int numApps = mApps.size(); 396 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 397 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 398 int childCount = layout.getChildCount(); 399 if (childCount > 0) { 400 i = numApps + 401 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 402 } 403 } 404 } 405 return i; 406 } 407 408 /** Get the index of the item to restore to if we need to restore the current page. */ 409 int getSaveInstanceStateIndex() { 410 if (mSaveInstanceStateItemIndex == -1) { 411 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 412 } 413 return mSaveInstanceStateItemIndex; 414 } 415 416 /** Returns the page in the current orientation which is expected to contain the specified 417 * item index. */ 418 int getPageForComponent(int index) { 419 if (index < 0) return 0; 420 421 if (index < mApps.size()) { 422 int numItemsPerPage = mCellCountX * mCellCountY; 423 return (index / numItemsPerPage); 424 } else { 425 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 426 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 427 } 428 } 429 430 /** Restores the page for an item at the specified index */ 431 void restorePageForIndex(int index) { 432 if (index < 0) return; 433 mSaveInstanceStateItemIndex = index; 434 } 435 436 private void updatePageCounts() { 437 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 438 (float) (mWidgetCountX * mWidgetCountY)); 439 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 440 } 441 442 protected void onDataReady(int width, int height) { 443 // Note that we transpose the counts in portrait so that we get a similar layout 444 boolean isLandscape = getResources().getConfiguration().orientation == 445 Configuration.ORIENTATION_LANDSCAPE; 446 int maxCellCountX = Integer.MAX_VALUE; 447 int maxCellCountY = Integer.MAX_VALUE; 448 if (LauncherApplication.isScreenLarge()) { 449 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 450 LauncherModel.getCellCountY()); 451 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 452 LauncherModel.getCellCountX()); 453 } 454 if (mMaxAppCellCountX > -1) { 455 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 456 } 457 if (mMaxAppCellCountY > -1) { 458 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 459 } 460 461 // Now that the data is ready, we can calculate the content width, the number of cells to 462 // use for each page 463 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 464 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 465 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 466 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 467 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 468 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 469 updatePageCounts(); 470 471 // Force a measure to update recalculate the gaps 472 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 473 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 474 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 475 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 476 477 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 478 final boolean hostIsTransitioning = host.isTransitioning(); 479 480 // Restore the page 481 int page = getPageForComponent(mSaveInstanceStateItemIndex); 482 invalidatePageData(Math.max(0, page), hostIsTransitioning); 483 484 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 485 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 486 // returned while animating) 487 if (!hostIsTransitioning) { 488 post(new Runnable() { 489 @Override 490 public void run() { 491 showAllAppsCling(); 492 } 493 }); 494 } 495 } 496 497 void showAllAppsCling() { 498 if (!mHasShownAllAppsCling && isDataReady()) { 499 mHasShownAllAppsCling = true; 500 // Calculate the position for the cling punch through 501 int[] offset = new int[2]; 502 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 503 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 504 // PagedViews are centered horizontally but top aligned 505 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 506 offset[0]; 507 pos[1] += offset[1]; 508 mLauncher.showFirstRunAllAppsCling(pos); 509 } 510 } 511 512 @Override 513 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 514 int width = MeasureSpec.getSize(widthMeasureSpec); 515 int height = MeasureSpec.getSize(heightMeasureSpec); 516 if (!isDataReady()) { 517 if (!mApps.isEmpty() && !mWidgets.isEmpty()) { 518 setDataIsReady(); 519 setMeasuredDimension(width, height); 520 onDataReady(width, height); 521 } 522 } 523 524 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 525 } 526 527 public void onPackagesUpdated() { 528 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 529 // by a broadcast receiver, and in order for it to work correctly, we need to know that 530 // the AppWidgetService has already received and processed the same broadcast. Since there 531 // is no guarantee about ordering of broadcast receipt, we just delay here. This is a 532 // workaround until we add a callback from AppWidgetService to AppWidgetHost when widget 533 // packages are added, updated or removed. 534 postDelayed(new Runnable() { 535 public void run() { 536 updatePackages(); 537 } 538 }, 1500); 539 } 540 541 public void updatePackages() { 542 // Get the list of widgets and shortcuts 543 mWidgets.clear(); 544 List<AppWidgetProviderInfo> widgets = 545 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 546 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 547 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 548 for (AppWidgetProviderInfo widget : widgets) { 549 if (widget.minWidth > 0 && widget.minHeight > 0) { 550 // Ensure that all widgets we show can be added on a workspace of this size 551 int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget); 552 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget); 553 int minSpanX = Math.min(spanXY[0], minSpanXY[0]); 554 int minSpanY = Math.min(spanXY[1], minSpanXY[1]); 555 if (minSpanX <= LauncherModel.getCellCountX() && 556 minSpanY <= LauncherModel.getCellCountY()) { 557 mWidgets.add(widget); 558 } else { 559 Log.e(TAG, "Widget " + widget.provider + " can not fit on this device (" + 560 widget.minWidth + ", " + widget.minHeight + ")"); 561 } 562 } else { 563 Log.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" + 564 widget.minWidth + ", " + widget.minHeight + ")"); 565 } 566 } 567 mWidgets.addAll(shortcuts); 568 Collections.sort(mWidgets, 569 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 570 updatePageCounts(); 571 invalidateOnDataChange(); 572 } 573 574 @Override 575 public void onClick(View v) { 576 // When we have exited all apps or are in transition, disregard clicks 577 if (!mLauncher.isAllAppsCustomizeOpen() || 578 mLauncher.getWorkspace().isSwitchingState()) return; 579 580 if (v instanceof PagedViewIcon) { 581 // Animate some feedback to the click 582 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 583 584 // Lock the drawable state to pressed until we return to Launcher 585 if (mPressedIcon != null) { 586 mPressedIcon.lockDrawableState(); 587 } 588 589 // NOTE: We want all transitions from launcher to act as if the wallpaper were enabled 590 // to be consistent. So re-enable the flag here, and we will re-disable it as necessary 591 // when Launcher resumes and we are still in AllApps. 592 mLauncher.updateWallpaperVisibility(true); 593 mLauncher.startActivitySafely(v, appInfo.intent, appInfo); 594 595 } else if (v instanceof PagedViewWidget) { 596 // Let the user know that they have to long press to add a widget 597 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 598 Toast.LENGTH_SHORT).show(); 599 600 // Create a little animation to show that the widget can move 601 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 602 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 603 AnimatorSet bounce = new AnimatorSet(); 604 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 605 tyuAnim.setDuration(125); 606 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 607 tydAnim.setDuration(100); 608 bounce.play(tyuAnim).before(tydAnim); 609 bounce.setInterpolator(new AccelerateInterpolator()); 610 bounce.start(); 611 } 612 } 613 614 public boolean onKey(View v, int keyCode, KeyEvent event) { 615 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 616 } 617 618 /* 619 * PagedViewWithDraggableItems implementation 620 */ 621 @Override 622 protected void determineDraggingStart(android.view.MotionEvent ev) { 623 // Disable dragging by pulling an app down for now. 624 } 625 626 private void beginDraggingApplication(View v) { 627 mLauncher.getWorkspace().onDragStartedWithItem(v); 628 mLauncher.getWorkspace().beginDragShared(v, this); 629 } 630 631 private void preloadWidget(final PendingAddWidgetInfo info) { 632 final AppWidgetProviderInfo pInfo = info.info; 633 if (pInfo.configure != null) { 634 return; 635 } 636 637 mWidgetCleanupState = WIDGET_PRELOAD_PENDING; 638 mBindWidgetRunnable = new Runnable() { 639 @Override 640 public void run() { 641 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 642 if (AppWidgetManager.getInstance(mLauncher) 643 .bindAppWidgetIdIfAllowed(mWidgetLoadingId, info.componentName)) { 644 mWidgetCleanupState = WIDGET_BOUND; 645 } 646 } 647 }; 648 post(mBindWidgetRunnable); 649 650 mInflateWidgetRunnable = new Runnable() { 651 @Override 652 public void run() { 653 AppWidgetHostView hostView = mLauncher. 654 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 655 info.boundWidget = hostView; 656 mWidgetCleanupState = WIDGET_INFLATED; 657 hostView.setVisibility(INVISIBLE); 658 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 659 info.spanY, info, false); 660 661 // We want the first widget layout to be the correct size. This will be important 662 // for width size reporting to the AppWidgetManager. 663 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 664 unScaledSize[1]); 665 lp.x = lp.y = 0; 666 lp.customPosition = true; 667 hostView.setLayoutParams(lp); 668 mLauncher.getDragLayer().addView(hostView); 669 } 670 }; 671 post(mInflateWidgetRunnable); 672 } 673 674 @Override 675 public void onShortPress(View v) { 676 // We are anticipating a long press, and we use this time to load bind and instantiate 677 // the widget. This will need to be cleaned up if it turns out no long press occurs. 678 if (mCreateWidgetInfo != null) { 679 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 680 cleanupWidgetPreloading(false); 681 } 682 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 683 preloadWidget(mCreateWidgetInfo); 684 } 685 686 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 687 if (!widgetWasAdded) { 688 // If the widget was not added, we may need to do further cleanup. 689 PendingAddWidgetInfo info = mCreateWidgetInfo; 690 mCreateWidgetInfo = null; 691 692 if (mWidgetCleanupState == WIDGET_PRELOAD_PENDING) { 693 // We never did any preloading, so just remove pending callbacks to do so 694 removeCallbacks(mBindWidgetRunnable); 695 removeCallbacks(mInflateWidgetRunnable); 696 } else if (mWidgetCleanupState == WIDGET_BOUND) { 697 // Delete the widget id which was allocated 698 if (mWidgetLoadingId != -1) { 699 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 700 } 701 702 // We never got around to inflating the widget, so remove the callback to do so. 703 removeCallbacks(mInflateWidgetRunnable); 704 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 705 // Delete the widget id which was allocated 706 if (mWidgetLoadingId != -1) { 707 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 708 } 709 710 // The widget was inflated and added to the DragLayer -- remove it. 711 AppWidgetHostView widget = info.boundWidget; 712 mLauncher.getDragLayer().removeView(widget); 713 } 714 } 715 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 716 mWidgetLoadingId = -1; 717 mCreateWidgetInfo = null; 718 PagedViewWidget.resetShortPressTarget(); 719 } 720 721 @Override 722 public void cleanUpShortPress(View v) { 723 if (!mDraggingWidget) { 724 cleanupWidgetPreloading(false); 725 } 726 } 727 728 private boolean beginDraggingWidget(View v) { 729 mDraggingWidget = true; 730 // Get the widget preview as the drag representation 731 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 732 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 733 734 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 735 // we abort the drag. 736 if (image.getDrawable() == null) { 737 mDraggingWidget = false; 738 return false; 739 } 740 741 // Compose the drag image 742 Bitmap preview; 743 Bitmap outline; 744 float scale = 1f; 745 if (createItemInfo instanceof PendingAddWidgetInfo) { 746 // This can happen in some weird cases involving multi-touch. We can't start dragging 747 // the widget if this is null, so we break out. 748 if (mCreateWidgetInfo == null) { 749 return false; 750 } 751 752 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 753 createItemInfo = createWidgetInfo; 754 int spanX = createItemInfo.spanX; 755 int spanY = createItemInfo.spanY; 756 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 757 createWidgetInfo, true); 758 759 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 760 float minScale = 1.25f; 761 int maxWidth, maxHeight; 762 maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 763 maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 764 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 765 createWidgetInfo.icon, spanX, spanY, maxWidth, maxHeight); 766 767 // Determine the image view drawable scale relative to the preview 768 float[] mv = new float[9]; 769 Matrix m = new Matrix(); 770 m.setRectToRect( 771 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 772 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 773 (float) previewDrawable.getIntrinsicHeight()), 774 Matrix.ScaleToFit.START); 775 m.getValues(mv); 776 scale = (float) mv[0]; 777 } else { 778 PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag(); 779 Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo); 780 preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), 781 icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 782 783 mCanvas.setBitmap(preview); 784 mCanvas.save(); 785 renderDrawableToBitmap(icon, preview, 0, 0, 786 icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); 787 mCanvas.restore(); 788 mCanvas.setBitmap(null); 789 createItemInfo.spanX = createItemInfo.spanY = 1; 790 } 791 792 // We use a custom alpha clip table for the default widget previews 793 Paint alphaClipPaint = null; 794 if (createItemInfo instanceof PendingAddWidgetInfo) { 795 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 796 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 797 alphaClipPaint = new Paint(); 798 alphaClipPaint.setMaskFilter(alphaClipTable); 799 } 800 } 801 802 // Save the preview for the outline generation, then dim the preview 803 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 804 false); 805 806 // Start the drag 807 alphaClipPaint = null; 808 mLauncher.lockScreenOrientation(); 809 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 810 mDragController.startDrag(image, preview, this, createItemInfo, 811 DragController.DRAG_ACTION_COPY, null, scale); 812 outline.recycle(); 813 preview.recycle(); 814 return true; 815 } 816 817 @Override 818 protected boolean beginDragging(final View v) { 819 if (!super.beginDragging(v)) return false; 820 821 if (v instanceof PagedViewIcon) { 822 beginDraggingApplication(v); 823 } else if (v instanceof PagedViewWidget) { 824 if (!beginDraggingWidget(v)) { 825 return false; 826 } 827 } 828 829 // We delay entering spring-loaded mode slightly to make sure the UI 830 // thready is free of any work. 831 postDelayed(new Runnable() { 832 @Override 833 public void run() { 834 // We don't enter spring-loaded mode if the drag has been cancelled 835 if (mLauncher.getDragController().isDragging()) { 836 // Dismiss the cling 837 mLauncher.dismissAllAppsCling(null); 838 839 // Reset the alpha on the dragged icon before we drag 840 resetDrawableState(); 841 842 // Go into spring loaded mode (must happen before we startDrag()) 843 mLauncher.enterSpringLoadedDragMode(); 844 } 845 } 846 }, 150); 847 848 return true; 849 } 850 851 /** 852 * Clean up after dragging. 853 * 854 * @param target where the item was dragged to (can be null if the item was flung) 855 */ 856 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 857 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 858 !(target instanceof DeleteDropTarget))) { 859 // Exit spring loaded mode if we have not successfully dropped or have not handled the 860 // drop in Workspace 861 mLauncher.exitSpringLoadedDragMode(); 862 } 863 mLauncher.unlockScreenOrientation(false); 864 } 865 866 @Override 867 public View getContent() { 868 return null; 869 } 870 871 @Override 872 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 873 mInTransition = true; 874 if (toWorkspace) { 875 cancelAllTasks(); 876 } 877 } 878 879 @Override 880 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 881 } 882 883 @Override 884 public void onLauncherTransitionStep(Launcher l, float t) { 885 } 886 887 @Override 888 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 889 mInTransition = false; 890 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 891 onSyncWidgetPageItems(d); 892 } 893 mDeferredSyncWidgetPageItems.clear(); 894 for (Runnable r : mDeferredPrepareLoadWidgetPreviewsTasks) { 895 r.run(); 896 } 897 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 898 mForceDrawAllChildrenNextFrame = !toWorkspace; 899 } 900 901 @Override 902 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 903 boolean success) { 904 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 905 if (isFlingToDelete) return; 906 907 endDragging(target, false, success); 908 909 // Display an error message if the drag failed due to there not being enough space on the 910 // target layout we were dropping on. 911 if (!success) { 912 boolean showOutOfSpaceMessage = false; 913 if (target instanceof Workspace) { 914 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 915 Workspace workspace = (Workspace) target; 916 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 917 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 918 if (layout != null) { 919 layout.calculateSpans(itemInfo); 920 showOutOfSpaceMessage = 921 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 922 } 923 } 924 if (showOutOfSpaceMessage) { 925 mLauncher.showOutOfSpaceMessage(false); 926 } 927 928 d.deferDragViewCleanupPostAnimation = false; 929 } 930 cleanupWidgetPreloading(success); 931 mDraggingWidget = false; 932 } 933 934 @Override 935 public void onFlingToDeleteCompleted() { 936 // We just dismiss the drag when we fling, so cleanup here 937 endDragging(null, true, true); 938 cleanupWidgetPreloading(false); 939 mDraggingWidget = false; 940 } 941 942 @Override 943 public boolean supportsFlingToDelete() { 944 return true; 945 } 946 947 @Override 948 protected void onDetachedFromWindow() { 949 super.onDetachedFromWindow(); 950 cancelAllTasks(); 951 } 952 953 public void clearAllWidgetPages() { 954 cancelAllTasks(); 955 int count = getChildCount(); 956 for (int i = 0; i < count; i++) { 957 View v = getPageAt(i); 958 if (v instanceof PagedViewGridLayout) { 959 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 960 mDirtyPageContent.set(i, true); 961 } 962 } 963 } 964 965 private void cancelAllTasks() { 966 // Clean up all the async tasks 967 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 968 while (iter.hasNext()) { 969 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 970 task.cancel(false); 971 iter.remove(); 972 mDirtyPageContent.set(task.page, true); 973 974 // We've already preallocated the views for the data to load into, so clear them as well 975 View v = getPageAt(task.page); 976 if (v instanceof PagedViewGridLayout) { 977 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 978 } 979 } 980 mDeferredSyncWidgetPageItems.clear(); 981 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 982 } 983 984 public void setContentType(ContentType type) { 985 if (type == ContentType.Widgets) { 986 invalidatePageData(mNumAppsPages, true); 987 } else if (type == ContentType.Applications) { 988 invalidatePageData(0, true); 989 } 990 } 991 992 protected void snapToPage(int whichPage, int delta, int duration) { 993 super.snapToPage(whichPage, delta, duration); 994 updateCurrentTab(whichPage); 995 996 // Update the thread priorities given the direction lookahead 997 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 998 while (iter.hasNext()) { 999 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1000 int pageIndex = task.page; 1001 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 1002 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 1003 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1004 } else { 1005 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 1006 } 1007 } 1008 } 1009 1010 private void updateCurrentTab(int currentPage) { 1011 AppsCustomizeTabHost tabHost = getTabHost(); 1012 if (tabHost != null) { 1013 String tag = tabHost.getCurrentTabTag(); 1014 if (tag != null) { 1015 if (currentPage >= mNumAppsPages && 1016 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 1017 tabHost.setCurrentTabFromContent(ContentType.Widgets); 1018 } else if (currentPage < mNumAppsPages && 1019 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1020 tabHost.setCurrentTabFromContent(ContentType.Applications); 1021 } 1022 } 1023 } 1024 } 1025 1026 /* 1027 * Apps PagedView implementation 1028 */ 1029 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 1030 int childCount = layout.getChildCount(); 1031 for (int i = 0; i < childCount; ++i) { 1032 layout.getChildAt(i).setVisibility(visibility); 1033 } 1034 } 1035 private void setupPage(PagedViewCellLayout layout) { 1036 layout.setCellCount(mCellCountX, mCellCountY); 1037 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 1038 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1039 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1040 1041 // Note: We force a measure here to get around the fact that when we do layout calculations 1042 // immediately after syncing, we don't have a proper width. That said, we already know the 1043 // expected page width, so we can actually optimize by hiding all the TextView-based 1044 // children that are expensive to measure, and let that happen naturally later. 1045 setVisibilityOnChildren(layout, View.GONE); 1046 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1047 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1048 layout.setMinimumWidth(getPageContentWidth()); 1049 layout.measure(widthSpec, heightSpec); 1050 setVisibilityOnChildren(layout, View.VISIBLE); 1051 } 1052 1053 public void syncAppsPageItems(int page, boolean immediate) { 1054 // ensure that we have the right number of items on the pages 1055 int numCells = mCellCountX * mCellCountY; 1056 int startIndex = page * numCells; 1057 int endIndex = Math.min(startIndex + numCells, mApps.size()); 1058 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 1059 1060 layout.removeAllViewsOnPage(); 1061 ArrayList<Object> items = new ArrayList<Object>(); 1062 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 1063 for (int i = startIndex; i < endIndex; ++i) { 1064 ApplicationInfo info = mApps.get(i); 1065 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 1066 R.layout.apps_customize_application, layout, false); 1067 icon.applyFromApplicationInfo(info, true, this); 1068 icon.setOnClickListener(this); 1069 icon.setOnLongClickListener(this); 1070 icon.setOnTouchListener(this); 1071 icon.setOnKeyListener(this); 1072 1073 int index = i - startIndex; 1074 int x = index % mCellCountX; 1075 int y = index / mCellCountX; 1076 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 1077 1078 items.add(info); 1079 images.add(info.iconBitmap); 1080 } 1081 1082 layout.createHardwareLayers(); 1083 } 1084 1085 /** 1086 * A helper to return the priority for loading of the specified widget page. 1087 */ 1088 private int getWidgetPageLoadPriority(int page) { 1089 // If we are snapping to another page, use that index as the target page index 1090 int toPage = mCurrentPage; 1091 if (mNextPage > -1) { 1092 toPage = mNextPage; 1093 } 1094 1095 // We use the distance from the target page as an initial guess of priority, but if there 1096 // are no pages of higher priority than the page specified, then bump up the priority of 1097 // the specified page. 1098 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1099 int minPageDiff = Integer.MAX_VALUE; 1100 while (iter.hasNext()) { 1101 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1102 minPageDiff = Math.abs(task.page - toPage); 1103 } 1104 1105 int rawPageDiff = Math.abs(page - toPage); 1106 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1107 } 1108 /** 1109 * Return the appropriate thread priority for loading for a given page (we give the current 1110 * page much higher priority) 1111 */ 1112 private int getThreadPriorityForPage(int page) { 1113 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1114 int pageDiff = getWidgetPageLoadPriority(page); 1115 if (pageDiff <= 0) { 1116 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1117 } else if (pageDiff <= 1) { 1118 return Process.THREAD_PRIORITY_LOWEST; 1119 } else { 1120 return Process.THREAD_PRIORITY_LOWEST; 1121 } 1122 } 1123 private int getSleepForPage(int page) { 1124 int pageDiff = getWidgetPageLoadPriority(page); 1125 return Math.max(0, pageDiff * sPageSleepDelay); 1126 } 1127 /** 1128 * Creates and executes a new AsyncTask to load a page of widget previews. 1129 */ 1130 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1131 int cellWidth, int cellHeight, int cellCountX) { 1132 1133 // Prune all tasks that are no longer needed 1134 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1135 while (iter.hasNext()) { 1136 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1137 int taskPage = task.page; 1138 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1139 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1140 task.cancel(false); 1141 iter.remove(); 1142 } else { 1143 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1144 } 1145 } 1146 1147 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1148 final int sleepMs = getSleepForPage(page); 1149 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1150 new AsyncTaskCallback() { 1151 @Override 1152 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1153 try { 1154 try { 1155 Thread.sleep(sleepMs); 1156 } catch (Exception e) {} 1157 loadWidgetPreviewsInBackground(task, data); 1158 } finally { 1159 if (task.isCancelled()) { 1160 data.cleanup(true); 1161 } 1162 } 1163 } 1164 }, 1165 new AsyncTaskCallback() { 1166 @Override 1167 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1168 mRunningTasks.remove(task); 1169 if (task.isCancelled()) return; 1170 // do cleanup inside onSyncWidgetPageItems 1171 onSyncWidgetPageItems(data); 1172 } 1173 }); 1174 1175 // Ensure that the task is appropriately prioritized and runs in parallel 1176 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1177 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1178 t.setThreadPriority(getThreadPriorityForPage(page)); 1179 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1180 mRunningTasks.add(t); 1181 } 1182 1183 /* 1184 * Widgets PagedView implementation 1185 */ 1186 private void setupPage(PagedViewGridLayout layout) { 1187 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1188 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1189 1190 // Note: We force a measure here to get around the fact that when we do layout calculations 1191 // immediately after syncing, we don't have a proper width. 1192 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1193 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1194 layout.setMinimumWidth(getPageContentWidth()); 1195 layout.measure(widthSpec, heightSpec); 1196 } 1197 1198 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1199 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 1200 } 1201 1202 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1203 float scale) { 1204 if (bitmap != null) { 1205 Canvas c = new Canvas(bitmap); 1206 c.scale(scale, scale); 1207 Rect oldBounds = d.copyBounds(); 1208 d.setBounds(x, y, x + w, y + h); 1209 d.draw(c); 1210 d.setBounds(oldBounds); // Restore the bounds 1211 c.setBitmap(null); 1212 } 1213 } 1214 1215 private Bitmap getShortcutPreview(ResolveInfo info, int maxWidth, int maxHeight) { 1216 Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 1217 final Canvas c = mCachedShortcutPreviewCanvas.get(); 1218 if (tempBitmap == null || 1219 tempBitmap.getWidth() != maxWidth || 1220 tempBitmap.getHeight() != maxHeight) { 1221 tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1222 mCachedShortcutPreviewBitmap.set(tempBitmap); 1223 } else { 1224 c.setBitmap(tempBitmap); 1225 c.drawColor(0, PorterDuff.Mode.CLEAR); 1226 c.setBitmap(null); 1227 } 1228 // Render the icon 1229 Drawable icon = mIconCache.getFullResIcon(info); 1230 1231 int paddingTop = 1232 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 1233 int paddingLeft = 1234 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 1235 int paddingRight = 1236 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 1237 1238 int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 1239 1240 renderDrawableToBitmap( 1241 icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 1242 1243 Bitmap preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1244 c.setBitmap(preview); 1245 Paint p = mCachedShortcutPreviewPaint.get(); 1246 if (p == null) { 1247 p = new Paint(); 1248 ColorMatrix colorMatrix = new ColorMatrix(); 1249 colorMatrix.setSaturation(0); 1250 p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 1251 p.setAlpha((int) (255 * 0.06f)); 1252 //float density = 1f; 1253 //p.setMaskFilter(new BlurMaskFilter(15*density, BlurMaskFilter.Blur.NORMAL)); 1254 mCachedShortcutPreviewPaint.set(p); 1255 } 1256 c.drawBitmap(tempBitmap, 0, 0, p); 1257 c.setBitmap(null); 1258 1259 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 1260 1261 return preview; 1262 } 1263 1264 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, 1265 int iconId, int cellHSpan, int cellVSpan, int maxWidth, 1266 int maxHeight) { 1267 // Load the preview image if possible 1268 String packageName = provider.getPackageName(); 1269 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1270 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1271 1272 Drawable drawable = null; 1273 if (previewImage != 0) { 1274 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1275 if (drawable == null) { 1276 Log.w(TAG, "Can't load widget preview drawable 0x" + 1277 Integer.toHexString(previewImage) + " for provider: " + provider); 1278 } 1279 } 1280 1281 int bitmapWidth; 1282 int bitmapHeight; 1283 Bitmap defaultPreview = null; 1284 boolean widgetPreviewExists = (drawable != null); 1285 if (widgetPreviewExists) { 1286 bitmapWidth = drawable.getIntrinsicWidth(); 1287 bitmapHeight = drawable.getIntrinsicHeight(); 1288 } else { 1289 // Generate a preview image if we couldn't load one 1290 if (cellHSpan < 1) cellHSpan = 1; 1291 if (cellVSpan < 1) cellVSpan = 1; 1292 1293 BitmapDrawable previewDrawable = (BitmapDrawable) getResources() 1294 .getDrawable(R.drawable.widget_preview_tile); 1295 final int previewDrawableWidth = previewDrawable 1296 .getIntrinsicWidth(); 1297 final int previewDrawableHeight = previewDrawable 1298 .getIntrinsicHeight(); 1299 bitmapWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 1300 bitmapHeight = previewDrawableHeight * cellVSpan; 1301 1302 defaultPreview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1303 Config.ARGB_8888); 1304 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1305 c.setBitmap(defaultPreview); 1306 previewDrawable.setBounds(0, 0, bitmapWidth, bitmapHeight); 1307 previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 1308 Shader.TileMode.REPEAT); 1309 previewDrawable.draw(c); 1310 c.setBitmap(null); 1311 1312 // Draw the icon in the top left corner 1313 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1314 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1315 float iconScale = Math.min((float) smallestSide 1316 / (mAppIconSize + 2 * minOffset), 1f); 1317 1318 try { 1319 Drawable icon = null; 1320 int hoffset = 1321 (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 1322 int yoffset = 1323 (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 1324 if (iconId > 0) 1325 icon = mIconCache.getFullResIcon(packageName, iconId); 1326 if (icon != null) { 1327 renderDrawableToBitmap(icon, defaultPreview, hoffset, 1328 yoffset, (int) (mAppIconSize * iconScale), 1329 (int) (mAppIconSize * iconScale)); 1330 } 1331 } catch (Resources.NotFoundException e) { 1332 } 1333 } 1334 1335 // Scale to fit width only - let the widget preview be clipped in the 1336 // vertical dimension 1337 float scale = 1f; 1338 if (bitmapWidth > maxWidth) { 1339 scale = maxWidth / (float) bitmapWidth; 1340 } 1341 if (scale != 1f) { 1342 bitmapWidth = (int) (scale * bitmapWidth); 1343 bitmapHeight = (int) (scale * bitmapHeight); 1344 } 1345 1346 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1347 Config.ARGB_8888); 1348 1349 // Draw the scaled preview into the final bitmap 1350 if (widgetPreviewExists) { 1351 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, 1352 bitmapHeight); 1353 } else { 1354 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1355 final Rect src = mCachedAppWidgetPreviewSrcRect.get(); 1356 final Rect dest = mCachedAppWidgetPreviewDestRect.get(); 1357 c.setBitmap(preview); 1358 src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); 1359 dest.set(0, 0, preview.getWidth(), preview.getHeight()); 1360 1361 Paint p = mCachedAppWidgetPreviewPaint.get(); 1362 if (p == null) { 1363 p = new Paint(); 1364 p.setFilterBitmap(true); 1365 mCachedAppWidgetPreviewPaint.set(p); 1366 } 1367 c.drawBitmap(defaultPreview, src, dest, p); 1368 c.setBitmap(null); 1369 } 1370 return preview; 1371 } 1372 1373 public void syncWidgetPageItems(final int page, final boolean immediate) { 1374 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1375 1376 // Calculate the dimensions of each cell we are giving to each widget 1377 final ArrayList<Object> items = new ArrayList<Object>(); 1378 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1379 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1380 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1381 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1382 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1383 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1384 1385 // Prepare the set of widgets to load previews for in the background 1386 int offset = (page - mNumAppsPages) * numItemsPerPage; 1387 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1388 items.add(mWidgets.get(i)); 1389 } 1390 1391 // Prepopulate the pages with the other widget info, and fill in the previews later 1392 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1393 layout.setColumnCount(layout.getCellCountX()); 1394 for (int i = 0; i < items.size(); ++i) { 1395 Object rawInfo = items.get(i); 1396 PendingAddItemInfo createItemInfo = null; 1397 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1398 R.layout.apps_customize_widget, layout, false); 1399 if (rawInfo instanceof AppWidgetProviderInfo) { 1400 // Fill in the widget information 1401 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1402 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1403 1404 // Determine the widget spans and min resize spans. 1405 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1406 createItemInfo.spanX = spanXY[0]; 1407 createItemInfo.spanY = spanXY[1]; 1408 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1409 createItemInfo.minSpanX = minSpanXY[0]; 1410 createItemInfo.minSpanY = minSpanXY[1]; 1411 1412 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1413 widget.setTag(createItemInfo); 1414 widget.setShortPressListener(this); 1415 } else if (rawInfo instanceof ResolveInfo) { 1416 // Fill in the shortcuts information 1417 ResolveInfo info = (ResolveInfo) rawInfo; 1418 createItemInfo = new PendingAddShortcutInfo(info.activityInfo); 1419 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1420 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1421 info.activityInfo.name); 1422 widget.applyFromResolveInfo(mPackageManager, info); 1423 widget.setTag(createItemInfo); 1424 } 1425 widget.setOnClickListener(this); 1426 widget.setOnLongClickListener(this); 1427 widget.setOnTouchListener(this); 1428 widget.setOnKeyListener(this); 1429 1430 // Layout each widget 1431 int ix = i % mWidgetCountX; 1432 int iy = i / mWidgetCountX; 1433 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1434 GridLayout.spec(iy, GridLayout.LEFT), 1435 GridLayout.spec(ix, GridLayout.TOP)); 1436 lp.width = cellWidth; 1437 lp.height = cellHeight; 1438 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1439 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1440 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1441 layout.addView(widget, lp); 1442 } 1443 1444 // wait until a call on onLayout to start loading, because 1445 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1446 // TODO: can we do a measure/layout immediately? 1447 layout.setOnLayoutListener(new Runnable() { 1448 public void run() { 1449 // Load the widget previews 1450 int maxPreviewWidth = cellWidth; 1451 int maxPreviewHeight = cellHeight; 1452 if (layout.getChildCount() > 0) { 1453 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1454 int[] maxSize = w.getPreviewSize(); 1455 maxPreviewWidth = maxSize[0]; 1456 maxPreviewHeight = maxSize[1]; 1457 } 1458 if (immediate) { 1459 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1460 maxPreviewWidth, maxPreviewHeight, null, null); 1461 loadWidgetPreviewsInBackground(null, data); 1462 onSyncWidgetPageItems(data); 1463 } else { 1464 if (mInTransition) { 1465 mDeferredPrepareLoadWidgetPreviewsTasks.add(this); 1466 } else { 1467 prepareLoadWidgetPreviewsTask(page, items, 1468 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1469 } 1470 } 1471 } 1472 }); 1473 } 1474 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1475 AsyncTaskPageData data) { 1476 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1477 // previews synchronously 1478 if (task != null) { 1479 // Ensure that this task starts running at the correct priority 1480 task.syncThreadPriority(); 1481 } 1482 1483 // Load each of the widget/shortcut previews 1484 ArrayList<Object> items = data.items; 1485 ArrayList<Bitmap> images = data.generatedImages; 1486 int count = items.size(); 1487 for (int i = 0; i < count; ++i) { 1488 if (task != null) { 1489 // Ensure we haven't been cancelled yet 1490 if (task.isCancelled()) break; 1491 // Before work on each item, ensure that this task is running at the correct 1492 // priority 1493 task.syncThreadPriority(); 1494 } 1495 1496 Object rawInfo = items.get(i); 1497 if (rawInfo instanceof AppWidgetProviderInfo) { 1498 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1499 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1500 1501 int maxWidth = Math.min(data.maxImageWidth, 1502 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1503 int maxHeight = Math.min(data.maxImageHeight, 1504 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1505 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1506 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1507 images.add(b); 1508 } else if (rawInfo instanceof ResolveInfo) { 1509 // Fill in the shortcuts information 1510 ResolveInfo info = (ResolveInfo) rawInfo; 1511 images.add(getShortcutPreview(info, data.maxImageWidth, data.maxImageHeight)); 1512 } 1513 } 1514 } 1515 1516 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1517 if (mInTransition) { 1518 mDeferredSyncWidgetPageItems.add(data); 1519 return; 1520 } 1521 try { 1522 int page = data.page; 1523 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1524 1525 ArrayList<Object> items = data.items; 1526 int count = items.size(); 1527 for (int i = 0; i < count; ++i) { 1528 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1529 if (widget != null) { 1530 Bitmap preview = data.generatedImages.get(i); 1531 widget.applyPreview(new FastBitmapDrawable(preview), i); 1532 } 1533 } 1534 1535 layout.createHardwareLayer(); 1536 invalidate(); 1537 1538 // Update all thread priorities 1539 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1540 while (iter.hasNext()) { 1541 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1542 int pageIndex = task.page; 1543 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1544 } 1545 } finally { 1546 data.cleanup(false); 1547 } 1548 } 1549 1550 @Override 1551 public void syncPages() { 1552 removeAllViews(); 1553 cancelAllTasks(); 1554 1555 Context context = getContext(); 1556 for (int j = 0; j < mNumWidgetPages; ++j) { 1557 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1558 mWidgetCountY); 1559 setupPage(layout); 1560 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1561 LayoutParams.MATCH_PARENT)); 1562 } 1563 1564 for (int i = 0; i < mNumAppsPages; ++i) { 1565 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1566 setupPage(layout); 1567 addView(layout); 1568 } 1569 } 1570 1571 @Override 1572 public void syncPageItems(int page, boolean immediate) { 1573 if (page < mNumAppsPages) { 1574 syncAppsPageItems(page, immediate); 1575 } else { 1576 syncWidgetPageItems(page, immediate); 1577 } 1578 } 1579 1580 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1581 // it is in the z-order. This is important to insure touch events are handled correctly. 1582 View getPageAt(int index) { 1583 return getChildAt(indexToPage(index)); 1584 } 1585 1586 @Override 1587 protected int indexToPage(int index) { 1588 return getChildCount() - index - 1; 1589 } 1590 1591 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1592 @Override 1593 protected void screenScrolled(int screenCenter) { 1594 super.screenScrolled(screenCenter); 1595 1596 for (int i = 0; i < getChildCount(); i++) { 1597 View v = getPageAt(i); 1598 if (v != null) { 1599 float scrollProgress = getScrollProgress(screenCenter, v, i); 1600 1601 float interpolatedProgress = 1602 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1603 float scale = (1 - interpolatedProgress) + 1604 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1605 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1606 1607 float alpha; 1608 1609 if (scrollProgress < 0) { 1610 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1611 1 - Math.abs(scrollProgress)) : 1.0f; 1612 } else { 1613 // On large screens we need to fade the page as it nears its leftmost position 1614 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1615 } 1616 1617 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1618 int pageWidth = v.getMeasuredWidth(); 1619 int pageHeight = v.getMeasuredHeight(); 1620 1621 if (PERFORM_OVERSCROLL_ROTATION) { 1622 if (i == 0 && scrollProgress < 0) { 1623 // Overscroll to the left 1624 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1625 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1626 scale = 1.0f; 1627 alpha = 1.0f; 1628 // On the first page, we don't want the page to have any lateral motion 1629 translationX = 0; 1630 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1631 // Overscroll to the right 1632 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1633 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1634 scale = 1.0f; 1635 alpha = 1.0f; 1636 // On the last page, we don't want the page to have any lateral motion. 1637 translationX = 0; 1638 } else { 1639 v.setPivotY(pageHeight / 2.0f); 1640 v.setPivotX(pageWidth / 2.0f); 1641 v.setRotationY(0f); 1642 } 1643 } 1644 1645 v.setTranslationX(translationX); 1646 v.setScaleX(scale); 1647 v.setScaleY(scale); 1648 v.setAlpha(alpha); 1649 1650 // If the view has 0 alpha, we set it to be invisible so as to prevent 1651 // it from accepting touches 1652 if (alpha == 0) { 1653 v.setVisibility(INVISIBLE); 1654 } else if (v.getVisibility() != VISIBLE) { 1655 v.setVisibility(VISIBLE); 1656 } 1657 } 1658 } 1659 } 1660 1661 protected void overScroll(float amount) { 1662 acceleratedOverScroll(amount); 1663 } 1664 1665 /** 1666 * Used by the parent to get the content width to set the tab bar to 1667 * @return 1668 */ 1669 public int getPageContentWidth() { 1670 return mContentWidth; 1671 } 1672 1673 @Override 1674 protected void onPageEndMoving() { 1675 super.onPageEndMoving(); 1676 mForceDrawAllChildrenNextFrame = true; 1677 // We reset the save index when we change pages so that it will be recalculated on next 1678 // rotation 1679 mSaveInstanceStateItemIndex = -1; 1680 } 1681 1682 /* 1683 * AllAppsView implementation 1684 */ 1685 @Override 1686 public void setup(Launcher launcher, DragController dragController) { 1687 mLauncher = launcher; 1688 mDragController = dragController; 1689 } 1690 @Override 1691 public void zoom(float zoom, boolean animate) { 1692 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1693 } 1694 @Override 1695 public boolean isVisible() { 1696 return (getVisibility() == VISIBLE); 1697 } 1698 @Override 1699 public boolean isAnimating() { 1700 return false; 1701 } 1702 1703 /** 1704 * We should call thise method whenever the core data changes (mApps, mWidgets) so that we can 1705 * appropriately determine when to invalidate the PagedView page data. In cases where the data 1706 * has yet to be set, we can requestLayout() and wait for onDataReady() to be called in the 1707 * next onMeasure() pass, which will trigger an invalidatePageData() itself. 1708 */ 1709 private void invalidateOnDataChange() { 1710 if (!isDataReady()) { 1711 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1712 // request a layout to trigger the page data when ready. 1713 requestLayout(); 1714 } else { 1715 cancelAllTasks(); 1716 invalidatePageData(); 1717 } 1718 } 1719 1720 @Override 1721 public void setApps(ArrayList<ApplicationInfo> list) { 1722 mApps = list; 1723 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1724 updatePageCounts(); 1725 invalidateOnDataChange(); 1726 } 1727 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1728 // We add it in place, in alphabetical order 1729 int count = list.size(); 1730 for (int i = 0; i < count; ++i) { 1731 ApplicationInfo info = list.get(i); 1732 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1733 if (index < 0) { 1734 mApps.add(-(index + 1), info); 1735 } 1736 } 1737 } 1738 @Override 1739 public void addApps(ArrayList<ApplicationInfo> list) { 1740 addAppsWithoutInvalidate(list); 1741 updatePageCounts(); 1742 invalidateOnDataChange(); 1743 } 1744 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1745 ComponentName removeComponent = item.intent.getComponent(); 1746 int length = list.size(); 1747 for (int i = 0; i < length; ++i) { 1748 ApplicationInfo info = list.get(i); 1749 if (info.intent.getComponent().equals(removeComponent)) { 1750 return i; 1751 } 1752 } 1753 return -1; 1754 } 1755 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1756 // loop through all the apps and remove apps that have the same component 1757 int length = list.size(); 1758 for (int i = 0; i < length; ++i) { 1759 ApplicationInfo info = list.get(i); 1760 int removeIndex = findAppByComponent(mApps, info); 1761 if (removeIndex > -1) { 1762 mApps.remove(removeIndex); 1763 } 1764 } 1765 } 1766 @Override 1767 public void removeApps(ArrayList<ApplicationInfo> list) { 1768 removeAppsWithoutInvalidate(list); 1769 updatePageCounts(); 1770 invalidateOnDataChange(); 1771 } 1772 @Override 1773 public void updateApps(ArrayList<ApplicationInfo> list) { 1774 // We remove and re-add the updated applications list because it's properties may have 1775 // changed (ie. the title), and this will ensure that the items will be in their proper 1776 // place in the list. 1777 removeAppsWithoutInvalidate(list); 1778 addAppsWithoutInvalidate(list); 1779 updatePageCounts(); 1780 invalidateOnDataChange(); 1781 } 1782 1783 @Override 1784 public void reset() { 1785 // If we have reset, then we should not continue to restore the previous state 1786 mSaveInstanceStateItemIndex = -1; 1787 1788 AppsCustomizeTabHost tabHost = getTabHost(); 1789 String tag = tabHost.getCurrentTabTag(); 1790 if (tag != null) { 1791 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1792 tabHost.setCurrentTabFromContent(ContentType.Applications); 1793 } 1794 } 1795 1796 if (mCurrentPage != 0) { 1797 invalidatePageData(0); 1798 } 1799 } 1800 1801 private AppsCustomizeTabHost getTabHost() { 1802 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1803 } 1804 1805 @Override 1806 public void dumpState() { 1807 // TODO: Dump information related to current list of Applications, Widgets, etc. 1808 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1809 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1810 } 1811 1812 private void dumpAppWidgetProviderInfoList(String tag, String label, 1813 ArrayList<Object> list) { 1814 Log.d(tag, label + " size=" + list.size()); 1815 for (Object i: list) { 1816 if (i instanceof AppWidgetProviderInfo) { 1817 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1818 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1819 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1820 + " initialLayout=" + info.initialLayout 1821 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1822 } else if (i instanceof ResolveInfo) { 1823 ResolveInfo info = (ResolveInfo) i; 1824 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1825 + info.icon); 1826 } 1827 } 1828 } 1829 1830 @Override 1831 public void surrender() { 1832 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1833 // should stop this now. 1834 1835 // Stop all background tasks 1836 cancelAllTasks(); 1837 } 1838 1839 @Override 1840 public void iconPressed(PagedViewIcon icon) { 1841 // Reset the previously pressed icon and store a reference to the pressed icon so that 1842 // we can reset it on return to Launcher (in Launcher.onResume()) 1843 if (mPressedIcon != null) { 1844 mPressedIcon.resetDrawableState(); 1845 } 1846 mPressedIcon = icon; 1847 } 1848 1849 public void resetDrawableState() { 1850 if (mPressedIcon != null) { 1851 mPressedIcon.resetDrawableState(); 1852 mPressedIcon = null; 1853 } 1854 } 1855 1856 /* 1857 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1858 * widget previews in the background with the AsyncTasks. 1859 */ 1860 final static int sLookBehindPageCount = 2; 1861 final static int sLookAheadPageCount = 2; 1862 protected int getAssociatedLowerPageBound(int page) { 1863 final int count = getChildCount(); 1864 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1865 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1866 return windowMinIndex; 1867 } 1868 protected int getAssociatedUpperPageBound(int page) { 1869 final int count = getChildCount(); 1870 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1871 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1872 count - 1); 1873 return windowMaxIndex; 1874 } 1875 1876 @Override 1877 protected String getCurrentPageDescription() { 1878 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1879 int stringId = R.string.default_scroll_format; 1880 int count = 0; 1881 1882 if (page < mNumAppsPages) { 1883 stringId = R.string.apps_customize_apps_scroll_format; 1884 count = mNumAppsPages; 1885 } else { 1886 page -= mNumAppsPages; 1887 stringId = R.string.apps_customize_widgets_scroll_format; 1888 count = mNumWidgetPages; 1889 } 1890 1891 return String.format(getContext().getString(stringId), page + 1, count); 1892 } 1893} 1894