AppsCustomizePagedView.java revision 7ce9985d37e253a93617404d5991017e1ea81907
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 final AppWidgetProviderInfo pInfo = info.info; 652 if (pInfo.configure != null) { 653 return; 654 } 655 656 mBindWidgetRunnable = new Runnable() { 657 @Override 658 public void run() { 659 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 660 if (AppWidgetManager.getInstance(mLauncher) 661 .bindAppWidgetIdIfAllowed(mWidgetLoadingId, info.componentName)) { 662 mWidgetCleanupState = WIDGET_BOUND; 663 } 664 } 665 }; 666 post(mBindWidgetRunnable); 667 668 mInflateWidgetRunnable = new Runnable() { 669 @Override 670 public void run() { 671 AppWidgetHostView hostView = mLauncher. 672 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 673 info.boundWidget = hostView; 674 mWidgetCleanupState = WIDGET_INFLATED; 675 hostView.setVisibility(INVISIBLE); 676 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 677 info.spanY, info, false); 678 679 // We want the first widget layout to be the correct size. This will be important 680 // for width size reporting to the AppWidgetManager. 681 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 682 unScaledSize[1]); 683 lp.x = lp.y = 0; 684 lp.customPosition = true; 685 hostView.setLayoutParams(lp); 686 mLauncher.getDragLayer().addView(hostView); 687 } 688 }; 689 post(mInflateWidgetRunnable); 690 } 691 692 @Override 693 public void onShortPress(View v) { 694 // We are anticipating a long press, and we use this time to load bind and instantiate 695 // the widget. This will need to be cleaned up if it turns out no long press occurs. 696 if (mCreateWidgetInfo != null) { 697 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 698 cleanupWidgetPreloading(false); 699 } 700 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 701 preloadWidget(mCreateWidgetInfo); 702 } 703 704 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 705 if (!widgetWasAdded) { 706 // If the widget was not added, we may need to do further cleanup. 707 PendingAddWidgetInfo info = mCreateWidgetInfo; 708 mCreateWidgetInfo = null; 709 // First step was to allocate a widget id, revert that. 710 if ((mWidgetCleanupState == WIDGET_BOUND || mWidgetCleanupState == WIDGET_INFLATED) && 711 mWidgetLoadingId != -1) { 712 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 713 } 714 if (mWidgetCleanupState == WIDGET_BOUND) { 715 // We never actually inflated the widget, so remove the callback to do so. 716 removeCallbacks(mInflateWidgetRunnable); 717 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 718 // The widget was inflated and added to the DragLayer -- remove it. 719 AppWidgetHostView widget = info.boundWidget; 720 mLauncher.getDragLayer().removeView(widget); 721 } 722 } 723 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 724 mWidgetLoadingId = -1; 725 mCreateWidgetInfo = null; 726 PagedViewWidget.resetShortPressTarget(); 727 } 728 729 @Override 730 public void cleanUpShortPress(View v) { 731 if (!mDraggingWidget) { 732 cleanupWidgetPreloading(false); 733 } 734 } 735 736 private boolean beginDraggingWidget(View v) { 737 mDraggingWidget = true; 738 // Get the widget preview as the drag representation 739 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 740 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 741 742 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 743 // we abort the drag. 744 if (image.getDrawable() == null) { 745 mDraggingWidget = false; 746 return false; 747 } 748 749 // Compose the drag image 750 Bitmap preview; 751 Bitmap outline; 752 float scale = 1f; 753 if (createItemInfo instanceof PendingAddWidgetInfo) { 754 // This can happen in some weird cases involving multi-touch. We can't start dragging 755 // the widget if this is null, so we break out. 756 if (mCreateWidgetInfo == null) { 757 return false; 758 } 759 760 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 761 createItemInfo = createWidgetInfo; 762 int spanX = createItemInfo.spanX; 763 int spanY = createItemInfo.spanY; 764 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 765 createWidgetInfo, true); 766 767 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 768 float minScale = 1.25f; 769 int maxWidth, maxHeight; 770 maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 771 maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 772 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 773 createWidgetInfo.icon, spanX, spanY, maxWidth, maxHeight); 774 775 // Determine the image view drawable scale relative to the preview 776 float[] mv = new float[9]; 777 Matrix m = new Matrix(); 778 m.setRectToRect( 779 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 780 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 781 (float) previewDrawable.getIntrinsicHeight()), 782 Matrix.ScaleToFit.START); 783 m.getValues(mv); 784 scale = (float) mv[0]; 785 } else { 786 PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag(); 787 Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo); 788 preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), 789 icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 790 791 mCanvas.setBitmap(preview); 792 mCanvas.save(); 793 renderDrawableToBitmap(icon, preview, 0, 0, 794 icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); 795 mCanvas.restore(); 796 mCanvas.setBitmap(null); 797 createItemInfo.spanX = createItemInfo.spanY = 1; 798 } 799 800 // We use a custom alpha clip table for the default widget previews 801 Paint alphaClipPaint = null; 802 if (createItemInfo instanceof PendingAddWidgetInfo) { 803 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 804 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 805 alphaClipPaint = new Paint(); 806 alphaClipPaint.setMaskFilter(alphaClipTable); 807 } 808 } 809 810 // Save the preview for the outline generation, then dim the preview 811 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 812 false); 813 814 // Start the drag 815 alphaClipPaint = null; 816 mLauncher.lockScreenOrientation(); 817 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 818 mDragController.startDrag(image, preview, this, createItemInfo, 819 DragController.DRAG_ACTION_COPY, null, scale); 820 outline.recycle(); 821 preview.recycle(); 822 return true; 823 } 824 825 @Override 826 protected boolean beginDragging(final View v) { 827 if (!super.beginDragging(v)) return false; 828 829 if (v instanceof PagedViewIcon) { 830 beginDraggingApplication(v); 831 } else if (v instanceof PagedViewWidget) { 832 if (!beginDraggingWidget(v)) { 833 return false; 834 } 835 } 836 837 // We delay entering spring-loaded mode slightly to make sure the UI 838 // thready is free of any work. 839 postDelayed(new Runnable() { 840 @Override 841 public void run() { 842 // We don't enter spring-loaded mode if the drag has been cancelled 843 if (mLauncher.getDragController().isDragging()) { 844 // Dismiss the cling 845 mLauncher.dismissAllAppsCling(null); 846 847 // Reset the alpha on the dragged icon before we drag 848 resetDrawableState(); 849 850 // Go into spring loaded mode (must happen before we startDrag()) 851 mLauncher.enterSpringLoadedDragMode(); 852 } 853 } 854 }, 150); 855 856 return true; 857 } 858 859 /** 860 * Clean up after dragging. 861 * 862 * @param target where the item was dragged to (can be null if the item was flung) 863 */ 864 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 865 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 866 !(target instanceof DeleteDropTarget))) { 867 // Exit spring loaded mode if we have not successfully dropped or have not handled the 868 // drop in Workspace 869 mLauncher.exitSpringLoadedDragMode(); 870 } 871 mLauncher.unlockScreenOrientation(false); 872 } 873 874 @Override 875 public View getContent() { 876 return null; 877 } 878 879 @Override 880 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 881 mInTransition = true; 882 if (toWorkspace) { 883 cancelAllTasks(); 884 } 885 } 886 887 @Override 888 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 889 } 890 891 @Override 892 public void onLauncherTransitionStep(Launcher l, float t) { 893 } 894 895 @Override 896 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 897 mInTransition = false; 898 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 899 onSyncWidgetPageItems(d); 900 } 901 mDeferredSyncWidgetPageItems.clear(); 902 mForceDrawAllChildrenNextFrame = !toWorkspace; 903 } 904 905 @Override 906 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 907 boolean success) { 908 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 909 if (isFlingToDelete) return; 910 911 endDragging(target, false, success); 912 913 // Display an error message if the drag failed due to there not being enough space on the 914 // target layout we were dropping on. 915 if (!success) { 916 boolean showOutOfSpaceMessage = false; 917 if (target instanceof Workspace) { 918 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 919 Workspace workspace = (Workspace) target; 920 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 921 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 922 if (layout != null) { 923 layout.calculateSpans(itemInfo); 924 showOutOfSpaceMessage = 925 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 926 } 927 } 928 if (showOutOfSpaceMessage) { 929 mLauncher.showOutOfSpaceMessage(false); 930 } 931 932 d.deferDragViewCleanupPostAnimation = false; 933 } 934 cleanupWidgetPreloading(success); 935 mDraggingWidget = false; 936 } 937 938 @Override 939 public void onFlingToDeleteCompleted() { 940 // We just dismiss the drag when we fling, so cleanup here 941 endDragging(null, true, true); 942 cleanupWidgetPreloading(false); 943 mDraggingWidget = false; 944 } 945 946 @Override 947 public boolean supportsFlingToDelete() { 948 return true; 949 } 950 951 @Override 952 protected void onDetachedFromWindow() { 953 super.onDetachedFromWindow(); 954 cancelAllTasks(); 955 } 956 957 public void clearAllWidgetPages() { 958 cancelAllTasks(); 959 int count = getChildCount(); 960 for (int i = 0; i < count; i++) { 961 View v = getPageAt(i); 962 if (v instanceof PagedViewGridLayout) { 963 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 964 mDirtyPageContent.set(i, true); 965 } 966 } 967 } 968 969 private void cancelAllTasks() { 970 // Clean up all the async tasks 971 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 972 while (iter.hasNext()) { 973 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 974 task.cancel(false); 975 iter.remove(); 976 mDirtyPageContent.set(task.page, true); 977 978 // We've already preallocated the views for the data to load into, so clear them as well 979 View v = getPageAt(task.page); 980 if (v instanceof PagedViewGridLayout) { 981 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 982 } 983 } 984 mDeferredSyncWidgetPageItems.clear(); 985 } 986 987 public void setContentType(ContentType type) { 988 if (type == ContentType.Widgets) { 989 invalidatePageData(mNumAppsPages, true); 990 } else if (type == ContentType.Applications) { 991 invalidatePageData(0, true); 992 } 993 } 994 995 protected void snapToPage(int whichPage, int delta, int duration) { 996 super.snapToPage(whichPage, delta, duration); 997 updateCurrentTab(whichPage); 998 999 // Update the thread priorities given the direction lookahead 1000 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1001 while (iter.hasNext()) { 1002 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1003 int pageIndex = task.page; 1004 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 1005 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 1006 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1007 } else { 1008 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 1009 } 1010 } 1011 } 1012 1013 private void updateCurrentTab(int currentPage) { 1014 AppsCustomizeTabHost tabHost = getTabHost(); 1015 if (tabHost != null) { 1016 String tag = tabHost.getCurrentTabTag(); 1017 if (tag != null) { 1018 if (currentPage >= mNumAppsPages && 1019 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 1020 tabHost.setCurrentTabFromContent(ContentType.Widgets); 1021 } else if (currentPage < mNumAppsPages && 1022 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1023 tabHost.setCurrentTabFromContent(ContentType.Applications); 1024 } 1025 } 1026 } 1027 } 1028 1029 /* 1030 * Apps PagedView implementation 1031 */ 1032 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 1033 int childCount = layout.getChildCount(); 1034 for (int i = 0; i < childCount; ++i) { 1035 layout.getChildAt(i).setVisibility(visibility); 1036 } 1037 } 1038 private void setupPage(PagedViewCellLayout layout) { 1039 layout.setCellCount(mCellCountX, mCellCountY); 1040 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 1041 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1042 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1043 1044 // Note: We force a measure here to get around the fact that when we do layout calculations 1045 // immediately after syncing, we don't have a proper width. That said, we already know the 1046 // expected page width, so we can actually optimize by hiding all the TextView-based 1047 // children that are expensive to measure, and let that happen naturally later. 1048 setVisibilityOnChildren(layout, View.GONE); 1049 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1050 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1051 layout.setMinimumWidth(getPageContentWidth()); 1052 layout.measure(widthSpec, heightSpec); 1053 setVisibilityOnChildren(layout, View.VISIBLE); 1054 } 1055 1056 public void syncAppsPageItems(int page, boolean immediate) { 1057 // ensure that we have the right number of items on the pages 1058 int numCells = mCellCountX * mCellCountY; 1059 int startIndex = page * numCells; 1060 int endIndex = Math.min(startIndex + numCells, mApps.size()); 1061 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 1062 1063 layout.removeAllViewsOnPage(); 1064 ArrayList<Object> items = new ArrayList<Object>(); 1065 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 1066 for (int i = startIndex; i < endIndex; ++i) { 1067 ApplicationInfo info = mApps.get(i); 1068 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 1069 R.layout.apps_customize_application, layout, false); 1070 icon.applyFromApplicationInfo(info, true, this); 1071 icon.setOnClickListener(this); 1072 icon.setOnLongClickListener(this); 1073 icon.setOnTouchListener(this); 1074 icon.setOnKeyListener(this); 1075 1076 int index = i - startIndex; 1077 int x = index % mCellCountX; 1078 int y = index / mCellCountX; 1079 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 1080 1081 items.add(info); 1082 images.add(info.iconBitmap); 1083 } 1084 1085 layout.createHardwareLayers(); 1086 } 1087 1088 /** 1089 * A helper to return the priority for loading of the specified widget page. 1090 */ 1091 private int getWidgetPageLoadPriority(int page) { 1092 // If we are snapping to another page, use that index as the target page index 1093 int toPage = mCurrentPage; 1094 if (mNextPage > -1) { 1095 toPage = mNextPage; 1096 } 1097 1098 // We use the distance from the target page as an initial guess of priority, but if there 1099 // are no pages of higher priority than the page specified, then bump up the priority of 1100 // the specified page. 1101 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1102 int minPageDiff = Integer.MAX_VALUE; 1103 while (iter.hasNext()) { 1104 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1105 minPageDiff = Math.abs(task.page - toPage); 1106 } 1107 1108 int rawPageDiff = Math.abs(page - toPage); 1109 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1110 } 1111 /** 1112 * Return the appropriate thread priority for loading for a given page (we give the current 1113 * page much higher priority) 1114 */ 1115 private int getThreadPriorityForPage(int page) { 1116 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1117 int pageDiff = getWidgetPageLoadPriority(page); 1118 if (pageDiff <= 0) { 1119 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1120 } else if (pageDiff <= 1) { 1121 return Process.THREAD_PRIORITY_LOWEST; 1122 } else { 1123 return Process.THREAD_PRIORITY_LOWEST; 1124 } 1125 } 1126 private int getSleepForPage(int page) { 1127 int pageDiff = getWidgetPageLoadPriority(page); 1128 return Math.max(0, pageDiff * sPageSleepDelay); 1129 } 1130 /** 1131 * Creates and executes a new AsyncTask to load a page of widget previews. 1132 */ 1133 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1134 int cellWidth, int cellHeight, int cellCountX) { 1135 1136 // Prune all tasks that are no longer needed 1137 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1138 while (iter.hasNext()) { 1139 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1140 int taskPage = task.page; 1141 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1142 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1143 task.cancel(false); 1144 iter.remove(); 1145 } else { 1146 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1147 } 1148 } 1149 1150 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1151 final int sleepMs = getSleepForPage(page); 1152 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1153 new AsyncTaskCallback() { 1154 @Override 1155 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1156 try { 1157 try { 1158 Thread.sleep(sleepMs); 1159 } catch (Exception e) {} 1160 loadWidgetPreviewsInBackground(task, data); 1161 } finally { 1162 if (task.isCancelled()) { 1163 data.cleanup(true); 1164 } 1165 } 1166 } 1167 }, 1168 new AsyncTaskCallback() { 1169 @Override 1170 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1171 mRunningTasks.remove(task); 1172 if (task.isCancelled()) return; 1173 // do cleanup inside onSyncWidgetPageItems 1174 onSyncWidgetPageItems(data); 1175 } 1176 }); 1177 1178 // Ensure that the task is appropriately prioritized and runs in parallel 1179 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1180 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1181 t.setThreadPriority(getThreadPriorityForPage(page)); 1182 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1183 mRunningTasks.add(t); 1184 } 1185 1186 /* 1187 * Widgets PagedView implementation 1188 */ 1189 private void setupPage(PagedViewGridLayout layout) { 1190 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1191 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1192 1193 // Note: We force a measure here to get around the fact that when we do layout calculations 1194 // immediately after syncing, we don't have a proper width. 1195 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1196 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1197 layout.setMinimumWidth(getPageContentWidth()); 1198 layout.measure(widthSpec, heightSpec); 1199 } 1200 1201 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1202 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 1203 } 1204 1205 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1206 float scale) { 1207 if (bitmap != null) { 1208 Canvas c = new Canvas(bitmap); 1209 c.scale(scale, scale); 1210 Rect oldBounds = d.copyBounds(); 1211 d.setBounds(x, y, x + w, y + h); 1212 d.draw(c); 1213 d.setBounds(oldBounds); // Restore the bounds 1214 c.setBitmap(null); 1215 } 1216 } 1217 1218 private Bitmap getShortcutPreview(ResolveInfo info, int maxWidth, int maxHeight) { 1219 Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 1220 final Canvas c = mCachedShortcutPreviewCanvas.get(); 1221 if (tempBitmap == null || 1222 tempBitmap.getWidth() != maxWidth || 1223 tempBitmap.getHeight() != maxHeight) { 1224 tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1225 mCachedShortcutPreviewBitmap.set(tempBitmap); 1226 } else { 1227 c.setBitmap(tempBitmap); 1228 c.drawColor(0, PorterDuff.Mode.CLEAR); 1229 c.setBitmap(null); 1230 } 1231 // Render the icon 1232 Drawable icon = mIconCache.getFullResIcon(info); 1233 1234 int paddingTop = 1235 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 1236 int paddingLeft = 1237 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 1238 int paddingRight = 1239 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 1240 1241 int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 1242 float scaleSize = scaledIconWidth / (float) mAppIconSize; 1243 1244 renderDrawableToBitmap( 1245 icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 1246 1247 Bitmap preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1248 c.setBitmap(preview); 1249 Paint p = mCachedShortcutPreviewPaint.get(); 1250 if (p == null) { 1251 p = new Paint(); 1252 ColorMatrix colorMatrix = new ColorMatrix(); 1253 colorMatrix.setSaturation(0); 1254 p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 1255 p.setAlpha((int) (255 * 0.06f)); 1256 //float density = 1f; 1257 //p.setMaskFilter(new BlurMaskFilter(15*density, BlurMaskFilter.Blur.NORMAL)); 1258 mCachedShortcutPreviewPaint.set(p); 1259 } 1260 c.drawBitmap(tempBitmap, 0, 0, p); 1261 c.setBitmap(null); 1262 1263 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 1264 1265 return preview; 1266 } 1267 1268 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, 1269 int iconId, int cellHSpan, int cellVSpan, int maxWidth, 1270 int maxHeight) { 1271 // Load the preview image if possible 1272 String packageName = provider.getPackageName(); 1273 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1274 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1275 1276 Drawable drawable = null; 1277 if (previewImage != 0) { 1278 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1279 if (drawable == null) { 1280 Log.w(TAG, "Can't load widget preview drawable 0x" + 1281 Integer.toHexString(previewImage) + " for provider: " + provider); 1282 } 1283 } 1284 1285 int bitmapWidth; 1286 int bitmapHeight; 1287 Bitmap defaultPreview = null; 1288 boolean widgetPreviewExists = (drawable != null); 1289 if (widgetPreviewExists) { 1290 bitmapWidth = drawable.getIntrinsicWidth(); 1291 bitmapHeight = drawable.getIntrinsicHeight(); 1292 } else { 1293 // Generate a preview image if we couldn't load one 1294 if (cellHSpan < 1) cellHSpan = 1; 1295 if (cellVSpan < 1) cellVSpan = 1; 1296 1297 BitmapDrawable previewDrawable = (BitmapDrawable) getResources() 1298 .getDrawable(R.drawable.widget_preview_tile); 1299 final int previewDrawableWidth = previewDrawable 1300 .getIntrinsicWidth(); 1301 final int previewDrawableHeight = previewDrawable 1302 .getIntrinsicHeight(); 1303 bitmapWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 1304 bitmapHeight = previewDrawableHeight * cellVSpan; 1305 1306 defaultPreview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1307 Config.ARGB_8888); 1308 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1309 c.setBitmap(defaultPreview); 1310 previewDrawable.setBounds(0, 0, bitmapWidth, bitmapHeight); 1311 previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 1312 Shader.TileMode.REPEAT); 1313 previewDrawable.draw(c); 1314 c.setBitmap(null); 1315 1316 // Draw the icon in the top left corner 1317 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1318 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1319 float iconScale = Math.min((float) smallestSide 1320 / (mAppIconSize + 2 * minOffset), 1f); 1321 1322 try { 1323 Drawable icon = null; 1324 int hoffset = 1325 (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 1326 int yoffset = 1327 (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 1328 if (iconId > 0) 1329 icon = mIconCache.getFullResIcon(packageName, iconId); 1330 Resources resources = mLauncher.getResources(); 1331 if (icon != null) { 1332 renderDrawableToBitmap(icon, defaultPreview, hoffset, 1333 yoffset, (int) (mAppIconSize * iconScale), 1334 (int) (mAppIconSize * iconScale)); 1335 } 1336 } catch (Resources.NotFoundException e) { 1337 } 1338 } 1339 1340 // Scale to fit width only - let the widget preview be clipped in the 1341 // vertical dimension 1342 float scale = 1f; 1343 if (bitmapWidth > maxWidth) { 1344 scale = maxWidth / (float) bitmapWidth; 1345 } 1346 if (scale != 1f) { 1347 bitmapWidth = (int) (scale * bitmapWidth); 1348 bitmapHeight = (int) (scale * bitmapHeight); 1349 } 1350 1351 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1352 Config.ARGB_8888); 1353 1354 // Draw the scaled preview into the final bitmap 1355 if (widgetPreviewExists) { 1356 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, 1357 bitmapHeight); 1358 } else { 1359 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1360 final Rect src = mCachedAppWidgetPreviewSrcRect.get(); 1361 final Rect dest = mCachedAppWidgetPreviewDestRect.get(); 1362 c.setBitmap(preview); 1363 src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); 1364 dest.set(0, 0, preview.getWidth(), preview.getHeight()); 1365 1366 Paint p = mCachedAppWidgetPreviewPaint.get(); 1367 if (p == null) { 1368 p = new Paint(); 1369 p.setFilterBitmap(true); 1370 mCachedAppWidgetPreviewPaint.set(p); 1371 } 1372 c.drawBitmap(defaultPreview, src, dest, p); 1373 c.setBitmap(null); 1374 } 1375 return preview; 1376 } 1377 1378 public void syncWidgetPageItems(final int page, final boolean immediate) { 1379 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1380 1381 // Calculate the dimensions of each cell we are giving to each widget 1382 final ArrayList<Object> items = new ArrayList<Object>(); 1383 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1384 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1385 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1386 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1387 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1388 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1389 1390 // Prepare the set of widgets to load previews for in the background 1391 int offset = (page - mNumAppsPages) * numItemsPerPage; 1392 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1393 items.add(mWidgets.get(i)); 1394 } 1395 1396 // Prepopulate the pages with the other widget info, and fill in the previews later 1397 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1398 layout.setColumnCount(layout.getCellCountX()); 1399 for (int i = 0; i < items.size(); ++i) { 1400 Object rawInfo = items.get(i); 1401 PendingAddItemInfo createItemInfo = null; 1402 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1403 R.layout.apps_customize_widget, layout, false); 1404 if (rawInfo instanceof AppWidgetProviderInfo) { 1405 // Fill in the widget information 1406 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1407 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1408 1409 // Determine the widget spans and min resize spans. 1410 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1411 createItemInfo.spanX = spanXY[0]; 1412 createItemInfo.spanY = spanXY[1]; 1413 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1414 createItemInfo.minSpanX = minSpanXY[0]; 1415 createItemInfo.minSpanY = minSpanXY[1]; 1416 1417 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1418 widget.setTag(createItemInfo); 1419 widget.setShortPressListener(this); 1420 } else if (rawInfo instanceof ResolveInfo) { 1421 // Fill in the shortcuts information 1422 ResolveInfo info = (ResolveInfo) rawInfo; 1423 createItemInfo = new PendingAddShortcutInfo(info.activityInfo); 1424 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1425 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1426 info.activityInfo.name); 1427 widget.applyFromResolveInfo(mPackageManager, info); 1428 widget.setTag(createItemInfo); 1429 } 1430 widget.setOnClickListener(this); 1431 widget.setOnLongClickListener(this); 1432 widget.setOnTouchListener(this); 1433 widget.setOnKeyListener(this); 1434 1435 // Layout each widget 1436 int ix = i % mWidgetCountX; 1437 int iy = i / mWidgetCountX; 1438 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1439 GridLayout.spec(iy, GridLayout.LEFT), 1440 GridLayout.spec(ix, GridLayout.TOP)); 1441 lp.width = cellWidth; 1442 lp.height = cellHeight; 1443 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1444 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1445 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1446 layout.addView(widget, lp); 1447 } 1448 1449 // wait until a call on onLayout to start loading, because 1450 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1451 // TODO: can we do a measure/layout immediately? 1452 layout.setOnLayoutListener(new Runnable() { 1453 public void run() { 1454 // Load the widget previews 1455 int maxPreviewWidth = cellWidth; 1456 int maxPreviewHeight = cellHeight; 1457 if (layout.getChildCount() > 0) { 1458 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1459 int[] maxSize = w.getPreviewSize(); 1460 maxPreviewWidth = maxSize[0]; 1461 maxPreviewHeight = maxSize[1]; 1462 } 1463 if (immediate) { 1464 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1465 maxPreviewWidth, maxPreviewHeight, null, null); 1466 loadWidgetPreviewsInBackground(null, data); 1467 onSyncWidgetPageItems(data); 1468 } else { 1469 prepareLoadWidgetPreviewsTask(page, items, 1470 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1471 } 1472 } 1473 }); 1474 } 1475 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1476 AsyncTaskPageData data) { 1477 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1478 // previews synchronously 1479 if (task != null) { 1480 // Ensure that this task starts running at the correct priority 1481 task.syncThreadPriority(); 1482 } 1483 1484 // Load each of the widget/shortcut previews 1485 ArrayList<Object> items = data.items; 1486 ArrayList<Bitmap> images = data.generatedImages; 1487 int count = items.size(); 1488 for (int i = 0; i < count; ++i) { 1489 if (task != null) { 1490 // Ensure we haven't been cancelled yet 1491 if (task.isCancelled()) break; 1492 // Before work on each item, ensure that this task is running at the correct 1493 // priority 1494 task.syncThreadPriority(); 1495 } 1496 1497 Object rawInfo = items.get(i); 1498 if (rawInfo instanceof AppWidgetProviderInfo) { 1499 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1500 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1501 1502 int maxWidth = Math.min(data.maxImageWidth, 1503 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1504 int maxHeight = Math.min(data.maxImageHeight, 1505 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1506 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1507 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1508 images.add(b); 1509 } else if (rawInfo instanceof ResolveInfo) { 1510 // Fill in the shortcuts information 1511 ResolveInfo info = (ResolveInfo) rawInfo; 1512 images.add(getShortcutPreview(info, data.maxImageWidth, data.maxImageHeight)); 1513 } 1514 } 1515 } 1516 1517 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1518 if (mInTransition) { 1519 mDeferredSyncWidgetPageItems.add(data); 1520 return; 1521 } 1522 try { 1523 int page = data.page; 1524 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1525 1526 ArrayList<Object> items = data.items; 1527 int count = items.size(); 1528 for (int i = 0; i < count; ++i) { 1529 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1530 if (widget != null) { 1531 Bitmap preview = data.generatedImages.get(i); 1532 widget.applyPreview(new FastBitmapDrawable(preview), i); 1533 } 1534 } 1535 1536 layout.createHardwareLayer(); 1537 invalidate(); 1538 1539 // Update all thread priorities 1540 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1541 while (iter.hasNext()) { 1542 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1543 int pageIndex = task.page; 1544 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1545 } 1546 } finally { 1547 data.cleanup(false); 1548 } 1549 } 1550 1551 @Override 1552 public void syncPages() { 1553 removeAllViews(); 1554 cancelAllTasks(); 1555 1556 Context context = getContext(); 1557 for (int j = 0; j < mNumWidgetPages; ++j) { 1558 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1559 mWidgetCountY); 1560 setupPage(layout); 1561 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1562 LayoutParams.MATCH_PARENT)); 1563 } 1564 1565 for (int i = 0; i < mNumAppsPages; ++i) { 1566 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1567 setupPage(layout); 1568 addView(layout); 1569 } 1570 } 1571 1572 @Override 1573 public void syncPageItems(int page, boolean immediate) { 1574 if (page < mNumAppsPages) { 1575 syncAppsPageItems(page, immediate); 1576 } else { 1577 syncWidgetPageItems(page, immediate); 1578 } 1579 } 1580 1581 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1582 // it is in the z-order. This is important to insure touch events are handled correctly. 1583 View getPageAt(int index) { 1584 return getChildAt(indexToPage(index)); 1585 } 1586 1587 @Override 1588 protected int indexToPage(int index) { 1589 return getChildCount() - index - 1; 1590 } 1591 1592 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1593 @Override 1594 protected void screenScrolled(int screenCenter) { 1595 super.screenScrolled(screenCenter); 1596 1597 for (int i = 0; i < getChildCount(); i++) { 1598 View v = getPageAt(i); 1599 if (v != null) { 1600 float scrollProgress = getScrollProgress(screenCenter, v, i); 1601 1602 float interpolatedProgress = 1603 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1604 float scale = (1 - interpolatedProgress) + 1605 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1606 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1607 1608 float alpha; 1609 1610 if (scrollProgress < 0) { 1611 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1612 1 - Math.abs(scrollProgress)) : 1.0f; 1613 } else { 1614 // On large screens we need to fade the page as it nears its leftmost position 1615 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1616 } 1617 1618 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1619 int pageWidth = v.getMeasuredWidth(); 1620 int pageHeight = v.getMeasuredHeight(); 1621 1622 if (PERFORM_OVERSCROLL_ROTATION) { 1623 if (i == 0 && scrollProgress < 0) { 1624 // Overscroll to the left 1625 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1626 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1627 scale = 1.0f; 1628 alpha = 1.0f; 1629 // On the first page, we don't want the page to have any lateral motion 1630 translationX = 0; 1631 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1632 // Overscroll to the right 1633 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1634 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1635 scale = 1.0f; 1636 alpha = 1.0f; 1637 // On the last page, we don't want the page to have any lateral motion. 1638 translationX = 0; 1639 } else { 1640 v.setPivotY(pageHeight / 2.0f); 1641 v.setPivotX(pageWidth / 2.0f); 1642 v.setRotationY(0f); 1643 } 1644 } 1645 1646 v.setTranslationX(translationX); 1647 v.setScaleX(scale); 1648 v.setScaleY(scale); 1649 v.setAlpha(alpha); 1650 1651 // If the view has 0 alpha, we set it to be invisible so as to prevent 1652 // it from accepting touches 1653 if (alpha == 0) { 1654 v.setVisibility(INVISIBLE); 1655 } else if (v.getVisibility() != VISIBLE) { 1656 v.setVisibility(VISIBLE); 1657 } 1658 } 1659 } 1660 } 1661 1662 protected void overScroll(float amount) { 1663 acceleratedOverScroll(amount); 1664 } 1665 1666 /** 1667 * Used by the parent to get the content width to set the tab bar to 1668 * @return 1669 */ 1670 public int getPageContentWidth() { 1671 return mContentWidth; 1672 } 1673 1674 @Override 1675 protected void onPageEndMoving() { 1676 super.onPageEndMoving(); 1677 mForceDrawAllChildrenNextFrame = true; 1678 // We reset the save index when we change pages so that it will be recalculated on next 1679 // rotation 1680 mSaveInstanceStateItemIndex = -1; 1681 } 1682 1683 /* 1684 * AllAppsView implementation 1685 */ 1686 @Override 1687 public void setup(Launcher launcher, DragController dragController) { 1688 mLauncher = launcher; 1689 mDragController = dragController; 1690 } 1691 @Override 1692 public void zoom(float zoom, boolean animate) { 1693 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1694 } 1695 @Override 1696 public boolean isVisible() { 1697 return (getVisibility() == VISIBLE); 1698 } 1699 @Override 1700 public boolean isAnimating() { 1701 return false; 1702 } 1703 @Override 1704 public void setApps(ArrayList<ApplicationInfo> list) { 1705 mApps = list; 1706 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1707 updatePageCounts(); 1708 1709 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1710 // request a layout to do this test and invalidate the page data when ready. 1711 if (testDataReady()) requestLayout(); 1712 } 1713 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1714 // We add it in place, in alphabetical order 1715 int count = list.size(); 1716 for (int i = 0; i < count; ++i) { 1717 ApplicationInfo info = list.get(i); 1718 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1719 if (index < 0) { 1720 mApps.add(-(index + 1), info); 1721 } 1722 } 1723 } 1724 @Override 1725 public void addApps(ArrayList<ApplicationInfo> list) { 1726 addAppsWithoutInvalidate(list); 1727 updatePageCounts(); 1728 invalidatePageData(); 1729 } 1730 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1731 ComponentName removeComponent = item.intent.getComponent(); 1732 int length = list.size(); 1733 for (int i = 0; i < length; ++i) { 1734 ApplicationInfo info = list.get(i); 1735 if (info.intent.getComponent().equals(removeComponent)) { 1736 return i; 1737 } 1738 } 1739 return -1; 1740 } 1741 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1742 // loop through all the apps and remove apps that have the same component 1743 int length = list.size(); 1744 for (int i = 0; i < length; ++i) { 1745 ApplicationInfo info = list.get(i); 1746 int removeIndex = findAppByComponent(mApps, info); 1747 if (removeIndex > -1) { 1748 mApps.remove(removeIndex); 1749 } 1750 } 1751 } 1752 @Override 1753 public void removeApps(ArrayList<ApplicationInfo> list) { 1754 removeAppsWithoutInvalidate(list); 1755 updatePageCounts(); 1756 invalidatePageData(); 1757 } 1758 @Override 1759 public void updateApps(ArrayList<ApplicationInfo> list) { 1760 // We remove and re-add the updated applications list because it's properties may have 1761 // changed (ie. the title), and this will ensure that the items will be in their proper 1762 // place in the list. 1763 removeAppsWithoutInvalidate(list); 1764 addAppsWithoutInvalidate(list); 1765 updatePageCounts(); 1766 1767 invalidatePageData(); 1768 } 1769 1770 @Override 1771 public void reset() { 1772 // If we have reset, then we should not continue to restore the previous state 1773 mSaveInstanceStateItemIndex = -1; 1774 1775 AppsCustomizeTabHost tabHost = getTabHost(); 1776 String tag = tabHost.getCurrentTabTag(); 1777 if (tag != null) { 1778 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1779 tabHost.setCurrentTabFromContent(ContentType.Applications); 1780 } 1781 } 1782 1783 if (mCurrentPage != 0) { 1784 invalidatePageData(0); 1785 } 1786 } 1787 1788 private AppsCustomizeTabHost getTabHost() { 1789 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1790 } 1791 1792 @Override 1793 public void dumpState() { 1794 // TODO: Dump information related to current list of Applications, Widgets, etc. 1795 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1796 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1797 } 1798 1799 private void dumpAppWidgetProviderInfoList(String tag, String label, 1800 ArrayList<Object> list) { 1801 Log.d(tag, label + " size=" + list.size()); 1802 for (Object i: list) { 1803 if (i instanceof AppWidgetProviderInfo) { 1804 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1805 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1806 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1807 + " initialLayout=" + info.initialLayout 1808 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1809 } else if (i instanceof ResolveInfo) { 1810 ResolveInfo info = (ResolveInfo) i; 1811 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1812 + info.icon); 1813 } 1814 } 1815 } 1816 1817 @Override 1818 public void surrender() { 1819 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1820 // should stop this now. 1821 1822 // Stop all background tasks 1823 cancelAllTasks(); 1824 } 1825 1826 @Override 1827 public void iconPressed(PagedViewIcon icon) { 1828 // Reset the previously pressed icon and store a reference to the pressed icon so that 1829 // we can reset it on return to Launcher (in Launcher.onResume()) 1830 if (mPressedIcon != null) { 1831 mPressedIcon.resetDrawableState(); 1832 } 1833 mPressedIcon = icon; 1834 } 1835 1836 public void resetDrawableState() { 1837 if (mPressedIcon != null) { 1838 mPressedIcon.resetDrawableState(); 1839 mPressedIcon = null; 1840 } 1841 } 1842 1843 /* 1844 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1845 * widget previews in the background with the AsyncTasks. 1846 */ 1847 final static int sLookBehindPageCount = 2; 1848 final static int sLookAheadPageCount = 2; 1849 protected int getAssociatedLowerPageBound(int page) { 1850 final int count = getChildCount(); 1851 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1852 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1853 return windowMinIndex; 1854 } 1855 protected int getAssociatedUpperPageBound(int page) { 1856 final int count = getChildCount(); 1857 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1858 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1859 count - 1); 1860 return windowMaxIndex; 1861 } 1862 1863 @Override 1864 protected String getCurrentPageDescription() { 1865 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1866 int stringId = R.string.default_scroll_format; 1867 int count = 0; 1868 1869 if (page < mNumAppsPages) { 1870 stringId = R.string.apps_customize_apps_scroll_format; 1871 count = mNumAppsPages; 1872 } else { 1873 page -= mNumAppsPages; 1874 stringId = R.string.apps_customize_widgets_scroll_format; 1875 count = mNumWidgetPages; 1876 } 1877 1878 return String.format(getContext().getString(stringId), page + 1, count); 1879 } 1880} 1881