AppsCustomizePagedView.java revision dac8591072959f69eaa8c6319311fd111ae75db6
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 mDeferredSyncWidgetPageItems.clear(); 979 } 980 981 public void setContentType(ContentType type) { 982 if (type == ContentType.Widgets) { 983 invalidatePageData(mNumAppsPages, true); 984 } else if (type == ContentType.Applications) { 985 invalidatePageData(0, true); 986 } 987 } 988 989 protected void snapToPage(int whichPage, int delta, int duration) { 990 super.snapToPage(whichPage, delta, duration); 991 updateCurrentTab(whichPage); 992 993 // Update the thread priorities given the direction lookahead 994 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 995 while (iter.hasNext()) { 996 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 997 int pageIndex = task.page; 998 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 999 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 1000 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1001 } else { 1002 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 1003 } 1004 } 1005 } 1006 1007 private void updateCurrentTab(int currentPage) { 1008 AppsCustomizeTabHost tabHost = getTabHost(); 1009 if (tabHost != null) { 1010 String tag = tabHost.getCurrentTabTag(); 1011 if (tag != null) { 1012 if (currentPage >= mNumAppsPages && 1013 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 1014 tabHost.setCurrentTabFromContent(ContentType.Widgets); 1015 } else if (currentPage < mNumAppsPages && 1016 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1017 tabHost.setCurrentTabFromContent(ContentType.Applications); 1018 } 1019 } 1020 } 1021 } 1022 1023 /* 1024 * Apps PagedView implementation 1025 */ 1026 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 1027 int childCount = layout.getChildCount(); 1028 for (int i = 0; i < childCount; ++i) { 1029 layout.getChildAt(i).setVisibility(visibility); 1030 } 1031 } 1032 private void setupPage(PagedViewCellLayout layout) { 1033 layout.setCellCount(mCellCountX, mCellCountY); 1034 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 1035 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1036 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1037 1038 // Note: We force a measure here to get around the fact that when we do layout calculations 1039 // immediately after syncing, we don't have a proper width. That said, we already know the 1040 // expected page width, so we can actually optimize by hiding all the TextView-based 1041 // children that are expensive to measure, and let that happen naturally later. 1042 setVisibilityOnChildren(layout, View.GONE); 1043 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1044 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1045 layout.setMinimumWidth(getPageContentWidth()); 1046 layout.measure(widthSpec, heightSpec); 1047 setVisibilityOnChildren(layout, View.VISIBLE); 1048 } 1049 1050 public void syncAppsPageItems(int page, boolean immediate) { 1051 // ensure that we have the right number of items on the pages 1052 int numCells = mCellCountX * mCellCountY; 1053 int startIndex = page * numCells; 1054 int endIndex = Math.min(startIndex + numCells, mApps.size()); 1055 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 1056 1057 layout.removeAllViewsOnPage(); 1058 ArrayList<Object> items = new ArrayList<Object>(); 1059 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 1060 for (int i = startIndex; i < endIndex; ++i) { 1061 ApplicationInfo info = mApps.get(i); 1062 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 1063 R.layout.apps_customize_application, layout, false); 1064 icon.applyFromApplicationInfo(info, true, this); 1065 icon.setOnClickListener(this); 1066 icon.setOnLongClickListener(this); 1067 icon.setOnTouchListener(this); 1068 icon.setOnKeyListener(this); 1069 1070 int index = i - startIndex; 1071 int x = index % mCellCountX; 1072 int y = index / mCellCountX; 1073 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 1074 1075 items.add(info); 1076 images.add(info.iconBitmap); 1077 } 1078 1079 layout.createHardwareLayers(); 1080 } 1081 1082 /** 1083 * A helper to return the priority for loading of the specified widget page. 1084 */ 1085 private int getWidgetPageLoadPriority(int page) { 1086 // If we are snapping to another page, use that index as the target page index 1087 int toPage = mCurrentPage; 1088 if (mNextPage > -1) { 1089 toPage = mNextPage; 1090 } 1091 1092 // We use the distance from the target page as an initial guess of priority, but if there 1093 // are no pages of higher priority than the page specified, then bump up the priority of 1094 // the specified page. 1095 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1096 int minPageDiff = Integer.MAX_VALUE; 1097 while (iter.hasNext()) { 1098 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1099 minPageDiff = Math.abs(task.page - toPage); 1100 } 1101 1102 int rawPageDiff = Math.abs(page - toPage); 1103 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1104 } 1105 /** 1106 * Return the appropriate thread priority for loading for a given page (we give the current 1107 * page much higher priority) 1108 */ 1109 private int getThreadPriorityForPage(int page) { 1110 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1111 int pageDiff = getWidgetPageLoadPriority(page); 1112 if (pageDiff <= 0) { 1113 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1114 } else if (pageDiff <= 1) { 1115 return Process.THREAD_PRIORITY_LOWEST; 1116 } else { 1117 return Process.THREAD_PRIORITY_LOWEST; 1118 } 1119 } 1120 private int getSleepForPage(int page) { 1121 int pageDiff = getWidgetPageLoadPriority(page); 1122 return Math.max(0, pageDiff * sPageSleepDelay); 1123 } 1124 /** 1125 * Creates and executes a new AsyncTask to load a page of widget previews. 1126 */ 1127 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1128 int cellWidth, int cellHeight, int cellCountX) { 1129 1130 // Prune all tasks that are no longer needed 1131 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1132 while (iter.hasNext()) { 1133 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1134 int taskPage = task.page; 1135 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1136 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1137 task.cancel(false); 1138 iter.remove(); 1139 } else { 1140 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1141 } 1142 } 1143 1144 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1145 final int sleepMs = getSleepForPage(page); 1146 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1147 new AsyncTaskCallback() { 1148 @Override 1149 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1150 try { 1151 try { 1152 Thread.sleep(sleepMs); 1153 } catch (Exception e) {} 1154 loadWidgetPreviewsInBackground(task, data); 1155 } finally { 1156 if (task.isCancelled()) { 1157 data.cleanup(true); 1158 } 1159 } 1160 } 1161 }, 1162 new AsyncTaskCallback() { 1163 @Override 1164 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1165 mRunningTasks.remove(task); 1166 if (task.isCancelled()) return; 1167 // do cleanup inside onSyncWidgetPageItems 1168 onSyncWidgetPageItems(data); 1169 } 1170 }); 1171 1172 // Ensure that the task is appropriately prioritized and runs in parallel 1173 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1174 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1175 t.setThreadPriority(getThreadPriorityForPage(page)); 1176 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1177 mRunningTasks.add(t); 1178 } 1179 1180 /* 1181 * Widgets PagedView implementation 1182 */ 1183 private void setupPage(PagedViewGridLayout layout) { 1184 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1185 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1186 1187 // Note: We force a measure here to get around the fact that when we do layout calculations 1188 // immediately after syncing, we don't have a proper width. 1189 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1190 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1191 layout.setMinimumWidth(getPageContentWidth()); 1192 layout.measure(widthSpec, heightSpec); 1193 } 1194 1195 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1196 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 1197 } 1198 1199 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1200 float scale) { 1201 if (bitmap != null) { 1202 Canvas c = new Canvas(bitmap); 1203 c.scale(scale, scale); 1204 Rect oldBounds = d.copyBounds(); 1205 d.setBounds(x, y, x + w, y + h); 1206 d.draw(c); 1207 d.setBounds(oldBounds); // Restore the bounds 1208 c.setBitmap(null); 1209 } 1210 } 1211 1212 private Bitmap getShortcutPreview(ResolveInfo info, int maxWidth, int maxHeight) { 1213 Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 1214 final Canvas c = mCachedShortcutPreviewCanvas.get(); 1215 if (tempBitmap == null || 1216 tempBitmap.getWidth() != maxWidth || 1217 tempBitmap.getHeight() != maxHeight) { 1218 tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1219 mCachedShortcutPreviewBitmap.set(tempBitmap); 1220 } else { 1221 c.setBitmap(tempBitmap); 1222 c.drawColor(0, PorterDuff.Mode.CLEAR); 1223 c.setBitmap(null); 1224 } 1225 // Render the icon 1226 Drawable icon = mIconCache.getFullResIcon(info); 1227 1228 int paddingTop = 1229 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 1230 int paddingLeft = 1231 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 1232 int paddingRight = 1233 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 1234 1235 int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 1236 float scaleSize = scaledIconWidth / (float) mAppIconSize; 1237 1238 renderDrawableToBitmap( 1239 icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 1240 1241 Bitmap preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1242 c.setBitmap(preview); 1243 Paint p = mCachedShortcutPreviewPaint.get(); 1244 if (p == null) { 1245 p = new Paint(); 1246 ColorMatrix colorMatrix = new ColorMatrix(); 1247 colorMatrix.setSaturation(0); 1248 p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 1249 p.setAlpha((int) (255 * 0.06f)); 1250 //float density = 1f; 1251 //p.setMaskFilter(new BlurMaskFilter(15*density, BlurMaskFilter.Blur.NORMAL)); 1252 mCachedShortcutPreviewPaint.set(p); 1253 } 1254 c.drawBitmap(tempBitmap, 0, 0, p); 1255 c.setBitmap(null); 1256 1257 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 1258 1259 return preview; 1260 } 1261 1262 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, 1263 int iconId, int cellHSpan, int cellVSpan, int maxWidth, 1264 int maxHeight) { 1265 // Load the preview image if possible 1266 String packageName = provider.getPackageName(); 1267 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1268 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1269 1270 Drawable drawable = null; 1271 if (previewImage != 0) { 1272 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1273 if (drawable == null) { 1274 Log.w(TAG, "Can't load widget preview drawable 0x" + 1275 Integer.toHexString(previewImage) + " for provider: " + provider); 1276 } 1277 } 1278 1279 int bitmapWidth; 1280 int bitmapHeight; 1281 Bitmap defaultPreview = null; 1282 boolean widgetPreviewExists = (drawable != null); 1283 if (widgetPreviewExists) { 1284 bitmapWidth = drawable.getIntrinsicWidth(); 1285 bitmapHeight = drawable.getIntrinsicHeight(); 1286 } else { 1287 // Generate a preview image if we couldn't load one 1288 if (cellHSpan < 1) cellHSpan = 1; 1289 if (cellVSpan < 1) cellVSpan = 1; 1290 1291 BitmapDrawable previewDrawable = (BitmapDrawable) getResources() 1292 .getDrawable(R.drawable.widget_preview_tile); 1293 final int previewDrawableWidth = previewDrawable 1294 .getIntrinsicWidth(); 1295 final int previewDrawableHeight = previewDrawable 1296 .getIntrinsicHeight(); 1297 bitmapWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 1298 bitmapHeight = previewDrawableHeight * cellVSpan; 1299 1300 defaultPreview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1301 Config.ARGB_8888); 1302 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1303 c.setBitmap(defaultPreview); 1304 previewDrawable.setBounds(0, 0, bitmapWidth, bitmapHeight); 1305 previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 1306 Shader.TileMode.REPEAT); 1307 previewDrawable.draw(c); 1308 c.setBitmap(null); 1309 1310 // Draw the icon in the top left corner 1311 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1312 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1313 float iconScale = Math.min((float) smallestSide 1314 / (mAppIconSize + 2 * minOffset), 1f); 1315 1316 try { 1317 Drawable icon = null; 1318 int hoffset = 1319 (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 1320 int yoffset = 1321 (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 1322 if (iconId > 0) 1323 icon = mIconCache.getFullResIcon(packageName, iconId); 1324 Resources resources = mLauncher.getResources(); 1325 if (icon != null) { 1326 renderDrawableToBitmap(icon, defaultPreview, hoffset, 1327 yoffset, (int) (mAppIconSize * iconScale), 1328 (int) (mAppIconSize * iconScale)); 1329 } 1330 } catch (Resources.NotFoundException e) { 1331 } 1332 } 1333 1334 // Scale to fit width only - let the widget preview be clipped in the 1335 // vertical dimension 1336 float scale = 1f; 1337 if (bitmapWidth > maxWidth) { 1338 scale = maxWidth / (float) bitmapWidth; 1339 } 1340 if (scale != 1f) { 1341 bitmapWidth = (int) (scale * bitmapWidth); 1342 bitmapHeight = (int) (scale * bitmapHeight); 1343 } 1344 1345 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1346 Config.ARGB_8888); 1347 1348 // Draw the scaled preview into the final bitmap 1349 if (widgetPreviewExists) { 1350 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, 1351 bitmapHeight); 1352 } else { 1353 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1354 final Rect src = mCachedAppWidgetPreviewSrcRect.get(); 1355 final Rect dest = mCachedAppWidgetPreviewDestRect.get(); 1356 c.setBitmap(preview); 1357 src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); 1358 dest.set(0, 0, preview.getWidth(), preview.getHeight()); 1359 1360 Paint p = mCachedAppWidgetPreviewPaint.get(); 1361 if (p == null) { 1362 p = new Paint(); 1363 p.setFilterBitmap(true); 1364 mCachedAppWidgetPreviewPaint.set(p); 1365 } 1366 c.drawBitmap(defaultPreview, src, dest, p); 1367 c.setBitmap(null); 1368 } 1369 return preview; 1370 } 1371 1372 public void syncWidgetPageItems(final int page, final boolean immediate) { 1373 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1374 1375 // Calculate the dimensions of each cell we are giving to each widget 1376 final ArrayList<Object> items = new ArrayList<Object>(); 1377 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1378 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1379 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1380 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1381 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1382 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1383 1384 // Prepare the set of widgets to load previews for in the background 1385 int offset = (page - mNumAppsPages) * numItemsPerPage; 1386 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1387 items.add(mWidgets.get(i)); 1388 } 1389 1390 // Prepopulate the pages with the other widget info, and fill in the previews later 1391 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1392 layout.setColumnCount(layout.getCellCountX()); 1393 for (int i = 0; i < items.size(); ++i) { 1394 Object rawInfo = items.get(i); 1395 PendingAddItemInfo createItemInfo = null; 1396 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1397 R.layout.apps_customize_widget, layout, false); 1398 if (rawInfo instanceof AppWidgetProviderInfo) { 1399 // Fill in the widget information 1400 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1401 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1402 1403 // Determine the widget spans and min resize spans. 1404 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1405 createItemInfo.spanX = spanXY[0]; 1406 createItemInfo.spanY = spanXY[1]; 1407 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1408 createItemInfo.minSpanX = minSpanXY[0]; 1409 createItemInfo.minSpanY = minSpanXY[1]; 1410 1411 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1412 widget.setTag(createItemInfo); 1413 widget.setShortPressListener(this); 1414 } else if (rawInfo instanceof ResolveInfo) { 1415 // Fill in the shortcuts information 1416 ResolveInfo info = (ResolveInfo) rawInfo; 1417 createItemInfo = new PendingAddShortcutInfo(info.activityInfo); 1418 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1419 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1420 info.activityInfo.name); 1421 widget.applyFromResolveInfo(mPackageManager, info); 1422 widget.setTag(createItemInfo); 1423 } 1424 widget.setOnClickListener(this); 1425 widget.setOnLongClickListener(this); 1426 widget.setOnTouchListener(this); 1427 widget.setOnKeyListener(this); 1428 1429 // Layout each widget 1430 int ix = i % mWidgetCountX; 1431 int iy = i / mWidgetCountX; 1432 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1433 GridLayout.spec(iy, GridLayout.LEFT), 1434 GridLayout.spec(ix, GridLayout.TOP)); 1435 lp.width = cellWidth; 1436 lp.height = cellHeight; 1437 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1438 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1439 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1440 layout.addView(widget, lp); 1441 } 1442 1443 // wait until a call on onLayout to start loading, because 1444 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1445 // TODO: can we do a measure/layout immediately? 1446 layout.setOnLayoutListener(new Runnable() { 1447 public void run() { 1448 // Load the widget previews 1449 int maxPreviewWidth = cellWidth; 1450 int maxPreviewHeight = cellHeight; 1451 if (layout.getChildCount() > 0) { 1452 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1453 int[] maxSize = w.getPreviewSize(); 1454 maxPreviewWidth = maxSize[0]; 1455 maxPreviewHeight = maxSize[1]; 1456 } 1457 if (immediate) { 1458 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1459 maxPreviewWidth, maxPreviewHeight, null, null); 1460 loadWidgetPreviewsInBackground(null, data); 1461 onSyncWidgetPageItems(data); 1462 } else { 1463 prepareLoadWidgetPreviewsTask(page, items, 1464 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1465 } 1466 } 1467 }); 1468 } 1469 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1470 AsyncTaskPageData data) { 1471 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1472 // previews synchronously 1473 if (task != null) { 1474 // Ensure that this task starts running at the correct priority 1475 task.syncThreadPriority(); 1476 } 1477 1478 // Load each of the widget/shortcut previews 1479 ArrayList<Object> items = data.items; 1480 ArrayList<Bitmap> images = data.generatedImages; 1481 int count = items.size(); 1482 for (int i = 0; i < count; ++i) { 1483 if (task != null) { 1484 // Ensure we haven't been cancelled yet 1485 if (task.isCancelled()) break; 1486 // Before work on each item, ensure that this task is running at the correct 1487 // priority 1488 task.syncThreadPriority(); 1489 } 1490 1491 Object rawInfo = items.get(i); 1492 if (rawInfo instanceof AppWidgetProviderInfo) { 1493 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1494 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1495 1496 int maxWidth = Math.min(data.maxImageWidth, 1497 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1498 int maxHeight = Math.min(data.maxImageHeight, 1499 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1500 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1501 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1502 images.add(b); 1503 } else if (rawInfo instanceof ResolveInfo) { 1504 // Fill in the shortcuts information 1505 ResolveInfo info = (ResolveInfo) rawInfo; 1506 images.add(getShortcutPreview(info, data.maxImageWidth, data.maxImageHeight)); 1507 } 1508 } 1509 } 1510 1511 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1512 if (mInTransition) { 1513 mDeferredSyncWidgetPageItems.add(data); 1514 return; 1515 } 1516 try { 1517 int page = data.page; 1518 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1519 1520 ArrayList<Object> items = data.items; 1521 int count = items.size(); 1522 for (int i = 0; i < count; ++i) { 1523 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1524 if (widget != null) { 1525 Bitmap preview = data.generatedImages.get(i); 1526 widget.applyPreview(new FastBitmapDrawable(preview), i); 1527 } 1528 } 1529 1530 layout.createHardwareLayer(); 1531 invalidate(); 1532 1533 // Update all thread priorities 1534 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1535 while (iter.hasNext()) { 1536 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1537 int pageIndex = task.page; 1538 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1539 } 1540 } finally { 1541 data.cleanup(false); 1542 } 1543 } 1544 1545 @Override 1546 public void syncPages() { 1547 removeAllViews(); 1548 cancelAllTasks(); 1549 1550 Context context = getContext(); 1551 for (int j = 0; j < mNumWidgetPages; ++j) { 1552 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1553 mWidgetCountY); 1554 setupPage(layout); 1555 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1556 LayoutParams.MATCH_PARENT)); 1557 } 1558 1559 for (int i = 0; i < mNumAppsPages; ++i) { 1560 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1561 setupPage(layout); 1562 addView(layout); 1563 } 1564 } 1565 1566 @Override 1567 public void syncPageItems(int page, boolean immediate) { 1568 if (page < mNumAppsPages) { 1569 syncAppsPageItems(page, immediate); 1570 } else { 1571 syncWidgetPageItems(page, immediate); 1572 } 1573 } 1574 1575 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1576 // it is in the z-order. This is important to insure touch events are handled correctly. 1577 View getPageAt(int index) { 1578 return getChildAt(indexToPage(index)); 1579 } 1580 1581 @Override 1582 protected int indexToPage(int index) { 1583 return getChildCount() - index - 1; 1584 } 1585 1586 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1587 @Override 1588 protected void screenScrolled(int screenCenter) { 1589 super.screenScrolled(screenCenter); 1590 1591 for (int i = 0; i < getChildCount(); i++) { 1592 View v = getPageAt(i); 1593 if (v != null) { 1594 float scrollProgress = getScrollProgress(screenCenter, v, i); 1595 1596 float interpolatedProgress = 1597 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1598 float scale = (1 - interpolatedProgress) + 1599 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1600 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1601 1602 float alpha; 1603 1604 if (scrollProgress < 0) { 1605 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1606 1 - Math.abs(scrollProgress)) : 1.0f; 1607 } else { 1608 // On large screens we need to fade the page as it nears its leftmost position 1609 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1610 } 1611 1612 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1613 int pageWidth = v.getMeasuredWidth(); 1614 int pageHeight = v.getMeasuredHeight(); 1615 1616 if (PERFORM_OVERSCROLL_ROTATION) { 1617 if (i == 0 && scrollProgress < 0) { 1618 // Overscroll to the left 1619 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1620 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1621 scale = 1.0f; 1622 alpha = 1.0f; 1623 // On the first page, we don't want the page to have any lateral motion 1624 translationX = 0; 1625 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1626 // Overscroll to the right 1627 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1628 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1629 scale = 1.0f; 1630 alpha = 1.0f; 1631 // On the last page, we don't want the page to have any lateral motion. 1632 translationX = 0; 1633 } else { 1634 v.setPivotY(pageHeight / 2.0f); 1635 v.setPivotX(pageWidth / 2.0f); 1636 v.setRotationY(0f); 1637 } 1638 } 1639 1640 v.setTranslationX(translationX); 1641 v.setScaleX(scale); 1642 v.setScaleY(scale); 1643 v.setAlpha(alpha); 1644 1645 // If the view has 0 alpha, we set it to be invisible so as to prevent 1646 // it from accepting touches 1647 if (alpha == 0) { 1648 v.setVisibility(INVISIBLE); 1649 } else if (v.getVisibility() != VISIBLE) { 1650 v.setVisibility(VISIBLE); 1651 } 1652 } 1653 } 1654 } 1655 1656 protected void overScroll(float amount) { 1657 acceleratedOverScroll(amount); 1658 } 1659 1660 /** 1661 * Used by the parent to get the content width to set the tab bar to 1662 * @return 1663 */ 1664 public int getPageContentWidth() { 1665 return mContentWidth; 1666 } 1667 1668 @Override 1669 protected void onPageEndMoving() { 1670 super.onPageEndMoving(); 1671 mForceDrawAllChildrenNextFrame = true; 1672 // We reset the save index when we change pages so that it will be recalculated on next 1673 // rotation 1674 mSaveInstanceStateItemIndex = -1; 1675 } 1676 1677 /* 1678 * AllAppsView implementation 1679 */ 1680 @Override 1681 public void setup(Launcher launcher, DragController dragController) { 1682 mLauncher = launcher; 1683 mDragController = dragController; 1684 } 1685 @Override 1686 public void zoom(float zoom, boolean animate) { 1687 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1688 } 1689 @Override 1690 public boolean isVisible() { 1691 return (getVisibility() == VISIBLE); 1692 } 1693 @Override 1694 public boolean isAnimating() { 1695 return false; 1696 } 1697 @Override 1698 public void setApps(ArrayList<ApplicationInfo> list) { 1699 mApps = list; 1700 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1701 updatePageCounts(); 1702 1703 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1704 // request a layout to do this test and invalidate the page data when ready. 1705 if (testDataReady()) requestLayout(); 1706 } 1707 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1708 // We add it in place, in alphabetical order 1709 int count = list.size(); 1710 for (int i = 0; i < count; ++i) { 1711 ApplicationInfo info = list.get(i); 1712 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1713 if (index < 0) { 1714 mApps.add(-(index + 1), info); 1715 } 1716 } 1717 } 1718 @Override 1719 public void addApps(ArrayList<ApplicationInfo> list) { 1720 addAppsWithoutInvalidate(list); 1721 updatePageCounts(); 1722 invalidatePageData(); 1723 } 1724 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1725 ComponentName removeComponent = item.intent.getComponent(); 1726 int length = list.size(); 1727 for (int i = 0; i < length; ++i) { 1728 ApplicationInfo info = list.get(i); 1729 if (info.intent.getComponent().equals(removeComponent)) { 1730 return i; 1731 } 1732 } 1733 return -1; 1734 } 1735 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1736 // loop through all the apps and remove apps that have the same component 1737 int length = list.size(); 1738 for (int i = 0; i < length; ++i) { 1739 ApplicationInfo info = list.get(i); 1740 int removeIndex = findAppByComponent(mApps, info); 1741 if (removeIndex > -1) { 1742 mApps.remove(removeIndex); 1743 } 1744 } 1745 } 1746 @Override 1747 public void removeApps(ArrayList<ApplicationInfo> list) { 1748 removeAppsWithoutInvalidate(list); 1749 updatePageCounts(); 1750 invalidatePageData(); 1751 } 1752 @Override 1753 public void updateApps(ArrayList<ApplicationInfo> list) { 1754 // We remove and re-add the updated applications list because it's properties may have 1755 // changed (ie. the title), and this will ensure that the items will be in their proper 1756 // place in the list. 1757 removeAppsWithoutInvalidate(list); 1758 addAppsWithoutInvalidate(list); 1759 updatePageCounts(); 1760 1761 invalidatePageData(); 1762 } 1763 1764 @Override 1765 public void reset() { 1766 // If we have reset, then we should not continue to restore the previous state 1767 mSaveInstanceStateItemIndex = -1; 1768 1769 AppsCustomizeTabHost tabHost = getTabHost(); 1770 String tag = tabHost.getCurrentTabTag(); 1771 if (tag != null) { 1772 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1773 tabHost.setCurrentTabFromContent(ContentType.Applications); 1774 } 1775 } 1776 1777 if (mCurrentPage != 0) { 1778 invalidatePageData(0); 1779 } 1780 } 1781 1782 private AppsCustomizeTabHost getTabHost() { 1783 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1784 } 1785 1786 @Override 1787 public void dumpState() { 1788 // TODO: Dump information related to current list of Applications, Widgets, etc. 1789 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1790 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1791 } 1792 1793 private void dumpAppWidgetProviderInfoList(String tag, String label, 1794 ArrayList<Object> list) { 1795 Log.d(tag, label + " size=" + list.size()); 1796 for (Object i: list) { 1797 if (i instanceof AppWidgetProviderInfo) { 1798 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1799 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1800 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1801 + " initialLayout=" + info.initialLayout 1802 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1803 } else if (i instanceof ResolveInfo) { 1804 ResolveInfo info = (ResolveInfo) i; 1805 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1806 + info.icon); 1807 } 1808 } 1809 } 1810 1811 @Override 1812 public void surrender() { 1813 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1814 // should stop this now. 1815 1816 // Stop all background tasks 1817 cancelAllTasks(); 1818 } 1819 1820 @Override 1821 public void iconPressed(PagedViewIcon icon) { 1822 // Reset the previously pressed icon and store a reference to the pressed icon so that 1823 // we can reset it on return to Launcher (in Launcher.onResume()) 1824 if (mPressedIcon != null) { 1825 mPressedIcon.resetDrawableState(); 1826 } 1827 mPressedIcon = icon; 1828 } 1829 1830 public void resetDrawableState() { 1831 if (mPressedIcon != null) { 1832 mPressedIcon.resetDrawableState(); 1833 mPressedIcon = null; 1834 } 1835 } 1836 1837 /* 1838 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1839 * widget previews in the background with the AsyncTasks. 1840 */ 1841 final static int sLookBehindPageCount = 2; 1842 final static int sLookAheadPageCount = 2; 1843 protected int getAssociatedLowerPageBound(int page) { 1844 final int count = getChildCount(); 1845 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1846 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1847 return windowMinIndex; 1848 } 1849 protected int getAssociatedUpperPageBound(int page) { 1850 final int count = getChildCount(); 1851 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1852 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1853 count - 1); 1854 return windowMaxIndex; 1855 } 1856 1857 @Override 1858 protected String getCurrentPageDescription() { 1859 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1860 int stringId = R.string.default_scroll_format; 1861 int count = 0; 1862 1863 if (page < mNumAppsPages) { 1864 stringId = R.string.apps_customize_apps_scroll_format; 1865 count = mNumAppsPages; 1866 } else { 1867 page -= mNumAppsPages; 1868 stringId = R.string.apps_customize_widgets_scroll_format; 1869 count = mNumWidgetPages; 1870 } 1871 1872 return String.format(getContext().getString(stringId), page + 1, count); 1873 } 1874} 1875