AppsCustomizePagedView.java revision bdb1030e215f163440b6f73f65b0ae47c5f6c8fd
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.ValueAnimator; 21import android.appwidget.AppWidgetHostView; 22import android.appwidget.AppWidgetManager; 23import android.appwidget.AppWidgetProviderInfo; 24import android.content.ComponentName; 25import android.content.Context; 26import android.content.Intent; 27import android.content.pm.PackageManager; 28import android.content.pm.ResolveInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.content.res.TypedArray; 32import android.graphics.Bitmap; 33import android.graphics.Bitmap.Config; 34import android.graphics.Canvas; 35import android.graphics.ColorMatrix; 36import android.graphics.ColorMatrixColorFilter; 37import android.graphics.Matrix; 38import android.graphics.Paint; 39import android.graphics.PorterDuff; 40import android.graphics.Rect; 41import android.graphics.RectF; 42import android.graphics.Shader; 43import android.graphics.drawable.BitmapDrawable; 44import android.graphics.drawable.Drawable; 45import android.os.AsyncTask; 46import android.os.Build; 47import android.os.Bundle; 48import android.os.Process; 49import android.util.AttributeSet; 50import android.util.Log; 51import android.view.Gravity; 52import android.view.KeyEvent; 53import android.view.LayoutInflater; 54import android.view.MotionEvent; 55import android.view.View; 56import android.view.ViewGroup; 57import android.view.animation.AccelerateInterpolator; 58import android.view.animation.DecelerateInterpolator; 59import android.widget.GridLayout; 60import android.widget.ImageView; 61import android.widget.Toast; 62 63import com.android.launcher.R; 64import com.android.launcher2.DropTarget.DragObject; 65 66import java.lang.ref.WeakReference; 67import java.util.ArrayList; 68import java.util.Collections; 69import java.util.Iterator; 70import java.util.List; 71 72/** 73 * A simple callback interface which also provides the results of the task. 74 */ 75interface AsyncTaskCallback { 76 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 77} 78 79/** 80 * The data needed to perform either of the custom AsyncTasks. 81 */ 82class AsyncTaskPageData { 83 enum Type { 84 LoadWidgetPreviewData 85 } 86 87 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 88 AsyncTaskCallback postR) { 89 page = p; 90 items = l; 91 sourceImages = si; 92 generatedImages = new ArrayList<Bitmap>(); 93 maxImageWidth = maxImageHeight = -1; 94 doInBackgroundCallback = bgR; 95 postExecuteCallback = postR; 96 } 97 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 98 AsyncTaskCallback postR) { 99 page = p; 100 items = l; 101 generatedImages = new ArrayList<Bitmap>(); 102 maxImageWidth = cw; 103 maxImageHeight = ch; 104 doInBackgroundCallback = bgR; 105 postExecuteCallback = postR; 106 } 107 void cleanup(boolean cancelled) { 108 // Clean up any references to source/generated bitmaps 109 if (sourceImages != null) { 110 if (cancelled) { 111 for (Bitmap b : sourceImages) { 112 b.recycle(); 113 } 114 } 115 sourceImages.clear(); 116 } 117 if (generatedImages != null) { 118 if (cancelled) { 119 for (Bitmap b : generatedImages) { 120 b.recycle(); 121 } 122 } 123 generatedImages.clear(); 124 } 125 } 126 int page; 127 ArrayList<Object> items; 128 ArrayList<Bitmap> sourceImages; 129 ArrayList<Bitmap> generatedImages; 130 int maxImageWidth; 131 int maxImageHeight; 132 AsyncTaskCallback doInBackgroundCallback; 133 AsyncTaskCallback postExecuteCallback; 134} 135 136/** 137 * A generic template for an async task used in AppsCustomize. 138 */ 139class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 140 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 141 page = p; 142 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 143 dataType = ty; 144 } 145 @Override 146 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 147 if (params.length != 1) return null; 148 // Load each of the widget previews in the background 149 params[0].doInBackgroundCallback.run(this, params[0]); 150 return params[0]; 151 } 152 @Override 153 protected void onPostExecute(AsyncTaskPageData result) { 154 // All the widget previews are loaded, so we can just callback to inflate the page 155 result.postExecuteCallback.run(this, result); 156 } 157 158 void setThreadPriority(int p) { 159 threadPriority = p; 160 } 161 void syncThreadPriority() { 162 Process.setThreadPriority(threadPriority); 163 } 164 165 // The page that this async task is associated with 166 AsyncTaskPageData.Type dataType; 167 int page; 168 int threadPriority; 169} 170 171abstract class WeakReferenceThreadLocal<T> { 172 private ThreadLocal<WeakReference<T>> mThreadLocal; 173 public WeakReferenceThreadLocal() { 174 mThreadLocal = new ThreadLocal<WeakReference<T>>(); 175 } 176 177 abstract T initialValue(); 178 179 public void set(T t) { 180 mThreadLocal.set(new WeakReference<T>(t)); 181 } 182 183 public T get() { 184 WeakReference<T> reference = mThreadLocal.get(); 185 T obj; 186 if (reference == null) { 187 obj = initialValue(); 188 mThreadLocal.set(new WeakReference<T>(obj)); 189 return obj; 190 } else { 191 obj = reference.get(); 192 if (obj == null) { 193 obj = initialValue(); 194 mThreadLocal.set(new WeakReference<T>(obj)); 195 } 196 return obj; 197 } 198 } 199} 200 201class CanvasCache extends WeakReferenceThreadLocal<Canvas> { 202 @Override 203 protected Canvas initialValue() { 204 return new Canvas(); 205 } 206} 207 208class PaintCache extends WeakReferenceThreadLocal<Paint> { 209 @Override 210 protected Paint initialValue() { 211 return null; 212 } 213} 214 215class BitmapCache extends WeakReferenceThreadLocal<Bitmap> { 216 @Override 217 protected Bitmap initialValue() { 218 return null; 219 } 220} 221 222class RectCache extends WeakReferenceThreadLocal<Rect> { 223 @Override 224 protected Rect initialValue() { 225 return new Rect(); 226 } 227} 228 229/** 230 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 231 */ 232public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 233 View.OnClickListener, View.OnKeyListener, DragSource, 234 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener, 235 LauncherTransitionable { 236 static final String TAG = "AppsCustomizePagedView"; 237 238 /** 239 * The different content types that this paged view can show. 240 */ 241 public enum ContentType { 242 Applications, 243 Widgets 244 } 245 246 // Refs 247 private Launcher mLauncher; 248 private DragController mDragController; 249 private final LayoutInflater mLayoutInflater; 250 private final PackageManager mPackageManager; 251 252 // Save and Restore 253 private int mSaveInstanceStateItemIndex = -1; 254 private PagedViewIcon mPressedIcon; 255 256 // Content 257 private ArrayList<ApplicationInfo> mApps; 258 private ArrayList<Object> mWidgets; 259 260 // Cling 261 private boolean mHasShownAllAppsCling; 262 private int mClingFocusedX; 263 private int mClingFocusedY; 264 265 // Caching 266 private Canvas mCanvas; 267 private IconCache mIconCache; 268 269 // Dimens 270 private int mContentWidth; 271 private int mAppIconSize; 272 private int mMaxAppCellCountX, mMaxAppCellCountY; 273 private int mWidgetCountX, mWidgetCountY; 274 private int mWidgetWidthGap, mWidgetHeightGap; 275 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 276 private PagedViewCellLayout mWidgetSpacingLayout; 277 private int mNumAppsPages; 278 private int mNumWidgetPages; 279 280 // Relating to the scroll and overscroll effects 281 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 282 private static float CAMERA_DISTANCE = 6500; 283 private static float TRANSITION_SCALE_FACTOR = 0.74f; 284 private static float TRANSITION_PIVOT = 0.65f; 285 private static float TRANSITION_MAX_ROTATION = 22; 286 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 287 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 288 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 289 290 // Previews & outlines 291 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 292 private static final int sPageSleepDelay = 200; 293 294 private Runnable mInflateWidgetRunnable = null; 295 private Runnable mBindWidgetRunnable = null; 296 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 297 static final int WIDGET_PRELOAD_PENDING = 0; 298 static final int WIDGET_BOUND = 1; 299 static final int WIDGET_INFLATED = 2; 300 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 301 int mWidgetLoadingId = -1; 302 PendingAddWidgetInfo mCreateWidgetInfo = null; 303 private boolean mDraggingWidget = false; 304 305 private Toast mWidgetInstructionToast; 306 307 // Deferral of loading widget previews during launcher transitions 308 private boolean mInTransition; 309 private ArrayList<AsyncTaskPageData> mDeferredSyncWidgetPageItems = 310 new ArrayList<AsyncTaskPageData>(); 311 private ArrayList<Runnable> mDeferredPrepareLoadWidgetPreviewsTasks = 312 new ArrayList<Runnable>(); 313 314 private Rect mTmpRect = new Rect(); 315 316 // Used for drawing shortcut previews 317 BitmapCache mCachedShortcutPreviewBitmap = new BitmapCache(); 318 PaintCache mCachedShortcutPreviewPaint = new PaintCache(); 319 CanvasCache mCachedShortcutPreviewCanvas = new CanvasCache(); 320 321 // Used for drawing widget previews 322 CanvasCache mCachedAppWidgetPreviewCanvas = new CanvasCache(); 323 RectCache mCachedAppWidgetPreviewSrcRect = new RectCache(); 324 RectCache mCachedAppWidgetPreviewDestRect = new RectCache(); 325 PaintCache mCachedAppWidgetPreviewPaint = new PaintCache(); 326 327 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 328 super(context, attrs); 329 mLayoutInflater = LayoutInflater.from(context); 330 mPackageManager = context.getPackageManager(); 331 mApps = new ArrayList<ApplicationInfo>(); 332 mWidgets = new ArrayList<Object>(); 333 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 334 mCanvas = new Canvas(); 335 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 336 337 // Save the default widget preview background 338 Resources resources = context.getResources(); 339 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 340 341 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 342 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 343 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 344 mWidgetWidthGap = 345 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 346 mWidgetHeightGap = 347 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 348 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 349 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 350 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 351 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 352 a.recycle(); 353 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 354 355 // The padding on the non-matched dimension for the default widget preview icons 356 // (top + bottom) 357 mFadeInAdjacentScreens = false; 358 359 // Unless otherwise specified this view is important for accessibility. 360 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 361 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 362 } 363 } 364 365 @Override 366 protected void init() { 367 super.init(); 368 mCenterPagesVertically = false; 369 370 Context context = getContext(); 371 Resources r = context.getResources(); 372 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 373 } 374 375 /** Returns the item index of the center item on this page so that we can restore to this 376 * item index when we rotate. */ 377 private int getMiddleComponentIndexOnCurrentPage() { 378 int i = -1; 379 if (getPageCount() > 0) { 380 int currentPage = getCurrentPage(); 381 if (currentPage < mNumAppsPages) { 382 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 383 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 384 int numItemsPerPage = mCellCountX * mCellCountY; 385 int childCount = childrenLayout.getChildCount(); 386 if (childCount > 0) { 387 i = (currentPage * numItemsPerPage) + (childCount / 2); 388 } 389 } else { 390 int numApps = mApps.size(); 391 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 392 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 393 int childCount = layout.getChildCount(); 394 if (childCount > 0) { 395 i = numApps + 396 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 397 } 398 } 399 } 400 return i; 401 } 402 403 /** Get the index of the item to restore to if we need to restore the current page. */ 404 int getSaveInstanceStateIndex() { 405 if (mSaveInstanceStateItemIndex == -1) { 406 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 407 } 408 return mSaveInstanceStateItemIndex; 409 } 410 411 /** Returns the page in the current orientation which is expected to contain the specified 412 * item index. */ 413 int getPageForComponent(int index) { 414 if (index < 0) return 0; 415 416 if (index < mApps.size()) { 417 int numItemsPerPage = mCellCountX * mCellCountY; 418 return (index / numItemsPerPage); 419 } else { 420 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 421 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 422 } 423 } 424 425 /** Restores the page for an item at the specified index */ 426 void restorePageForIndex(int index) { 427 if (index < 0) return; 428 mSaveInstanceStateItemIndex = index; 429 } 430 431 private void updatePageCounts() { 432 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 433 (float) (mWidgetCountX * mWidgetCountY)); 434 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 435 } 436 437 protected void onDataReady(int width, int height) { 438 // Note that we transpose the counts in portrait so that we get a similar layout 439 boolean isLandscape = getResources().getConfiguration().orientation == 440 Configuration.ORIENTATION_LANDSCAPE; 441 int maxCellCountX = Integer.MAX_VALUE; 442 int maxCellCountY = Integer.MAX_VALUE; 443 if (LauncherApplication.isScreenLarge()) { 444 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 445 LauncherModel.getCellCountY()); 446 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 447 LauncherModel.getCellCountX()); 448 } 449 if (mMaxAppCellCountX > -1) { 450 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 451 } 452 if (mMaxAppCellCountY > -1) { 453 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 454 } 455 456 // Now that the data is ready, we can calculate the content width, the number of cells to 457 // use for each page 458 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 459 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 460 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 461 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 462 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 463 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 464 updatePageCounts(); 465 466 // Force a measure to update recalculate the gaps 467 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 468 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 469 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 470 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 471 472 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 473 final boolean hostIsTransitioning = host.isTransitioning(); 474 475 // Restore the page 476 int page = getPageForComponent(mSaveInstanceStateItemIndex); 477 invalidatePageData(Math.max(0, page), hostIsTransitioning); 478 479 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 480 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 481 // returned while animating) 482 if (!hostIsTransitioning) { 483 post(new Runnable() { 484 @Override 485 public void run() { 486 showAllAppsCling(); 487 } 488 }); 489 } 490 } 491 492 void showAllAppsCling() { 493 if (!mHasShownAllAppsCling && isDataReady()) { 494 mHasShownAllAppsCling = true; 495 // Calculate the position for the cling punch through 496 int[] offset = new int[2]; 497 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 498 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 499 // PagedViews are centered horizontally but top aligned 500 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 501 offset[0]; 502 pos[1] += offset[1]; 503 mLauncher.showFirstRunAllAppsCling(pos); 504 } 505 } 506 507 @Override 508 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 509 int width = MeasureSpec.getSize(widthMeasureSpec); 510 int height = MeasureSpec.getSize(heightMeasureSpec); 511 if (!isDataReady()) { 512 if (!mApps.isEmpty() && !mWidgets.isEmpty()) { 513 setDataIsReady(); 514 setMeasuredDimension(width, height); 515 onDataReady(width, height); 516 } 517 } 518 519 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 520 } 521 522 public void onPackagesUpdated() { 523 // Get the list of widgets and shortcuts 524 mWidgets.clear(); 525 List<AppWidgetProviderInfo> widgets = 526 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 527 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 528 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 529 for (AppWidgetProviderInfo widget : widgets) { 530 if (widget.minWidth > 0 && widget.minHeight > 0) { 531 // Ensure that all widgets we show can be added on a workspace of this size 532 int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget); 533 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget); 534 int minSpanX = Math.min(spanXY[0], minSpanXY[0]); 535 int minSpanY = Math.min(spanXY[1], minSpanXY[1]); 536 if (minSpanX <= LauncherModel.getCellCountX() && 537 minSpanY <= LauncherModel.getCellCountY()) { 538 mWidgets.add(widget); 539 } else { 540 Log.e(TAG, "Widget " + widget.provider + " can not fit on this device (" + 541 widget.minWidth + ", " + widget.minHeight + ")"); 542 } 543 } else { 544 Log.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" + 545 widget.minWidth + ", " + widget.minHeight + ")"); 546 } 547 } 548 mWidgets.addAll(shortcuts); 549 Collections.sort(mWidgets, 550 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 551 updatePageCounts(); 552 invalidateOnDataChange(); 553 } 554 555 @Override 556 public void onClick(View v) { 557 // When we have exited all apps or are in transition, disregard clicks 558 if (!mLauncher.isAllAppsVisible() || 559 mLauncher.getWorkspace().isSwitchingState()) return; 560 561 if (v instanceof PagedViewIcon) { 562 // Animate some feedback to the click 563 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 564 565 // Lock the drawable state to pressed until we return to Launcher 566 if (mPressedIcon != null) { 567 mPressedIcon.lockDrawableState(); 568 } 569 570 // NOTE: We want all transitions from launcher to act as if the wallpaper were enabled 571 // to be consistent. So re-enable the flag here, and we will re-disable it as necessary 572 // when Launcher resumes and we are still in AllApps. 573 mLauncher.updateWallpaperVisibility(true); 574 mLauncher.startActivitySafely(v, appInfo.intent, appInfo); 575 576 } else if (v instanceof PagedViewWidget) { 577 // Let the user know that they have to long press to add a widget 578 if (mWidgetInstructionToast != null) { 579 mWidgetInstructionToast.cancel(); 580 } 581 mWidgetInstructionToast = Toast.makeText(getContext(),R.string.long_press_widget_to_add, 582 Toast.LENGTH_SHORT); 583 mWidgetInstructionToast.show(); 584 585 // Create a little animation to show that the widget can move 586 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 587 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 588 AnimatorSet bounce = LauncherAnimUtils.createAnimatorSet(); 589 ValueAnimator tyuAnim = LauncherAnimUtils.ofFloat(p, "translationY", offsetY); 590 tyuAnim.setDuration(125); 591 ValueAnimator tydAnim = LauncherAnimUtils.ofFloat(p, "translationY", 0f); 592 tydAnim.setDuration(100); 593 bounce.play(tyuAnim).before(tydAnim); 594 bounce.setInterpolator(new AccelerateInterpolator()); 595 bounce.start(); 596 } 597 } 598 599 public boolean onKey(View v, int keyCode, KeyEvent event) { 600 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 601 } 602 603 /* 604 * PagedViewWithDraggableItems implementation 605 */ 606 @Override 607 protected void determineDraggingStart(android.view.MotionEvent ev) { 608 // Disable dragging by pulling an app down for now. 609 } 610 611 private void beginDraggingApplication(View v) { 612 mLauncher.getWorkspace().onDragStartedWithItem(v); 613 mLauncher.getWorkspace().beginDragShared(v, this); 614 } 615 616 Bundle getDefaultOptionsForWidget(Launcher launcher, PendingAddWidgetInfo info) { 617 Bundle options = null; 618 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { 619 AppWidgetResizeFrame.getWidgetSizeRanges(mLauncher, info.spanX, info.spanY, mTmpRect); 620 options = new Bundle(); 621 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH, mTmpRect.left); 622 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT, mTmpRect.top); 623 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH, mTmpRect.right); 624 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT, mTmpRect.bottom); 625 } 626 return options; 627 } 628 629 private void preloadWidget(final PendingAddWidgetInfo info) { 630 final AppWidgetProviderInfo pInfo = info.info; 631 if (pInfo.configure != null) { 632 return; 633 } 634 635 mWidgetCleanupState = WIDGET_PRELOAD_PENDING; 636 mBindWidgetRunnable = new Runnable() { 637 @Override 638 public void run() { 639 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 640 641 Bundle options = getDefaultOptionsForWidget(mLauncher, info); 642 // Options will be null for platforms with JB or lower, so this serves as an 643 // SDK level check. 644 if (options == null) { 645 if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed( 646 mWidgetLoadingId, info.componentName)) { 647 mWidgetCleanupState = WIDGET_BOUND; 648 } 649 } else { 650 if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed( 651 mWidgetLoadingId, info.componentName, options)) { 652 mWidgetCleanupState = WIDGET_BOUND; 653 } 654 } 655 } 656 }; 657 post(mBindWidgetRunnable); 658 659 mInflateWidgetRunnable = new Runnable() { 660 @Override 661 public void run() { 662 if (mWidgetCleanupState != WIDGET_BOUND) { 663 return; 664 } 665 AppWidgetHostView hostView = mLauncher. 666 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 667 info.boundWidget = hostView; 668 mWidgetCleanupState = WIDGET_INFLATED; 669 hostView.setVisibility(INVISIBLE); 670 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 671 info.spanY, info, false); 672 673 // We want the first widget layout to be the correct size. This will be important 674 // for width size reporting to the AppWidgetManager. 675 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 676 unScaledSize[1]); 677 lp.x = lp.y = 0; 678 lp.customPosition = true; 679 hostView.setLayoutParams(lp); 680 mLauncher.getDragLayer().addView(hostView); 681 } 682 }; 683 post(mInflateWidgetRunnable); 684 } 685 686 @Override 687 public void onShortPress(View v) { 688 // We are anticipating a long press, and we use this time to load bind and instantiate 689 // the widget. This will need to be cleaned up if it turns out no long press occurs. 690 if (mCreateWidgetInfo != null) { 691 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 692 cleanupWidgetPreloading(false); 693 } 694 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 695 preloadWidget(mCreateWidgetInfo); 696 } 697 698 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 699 if (!widgetWasAdded) { 700 // If the widget was not added, we may need to do further cleanup. 701 PendingAddWidgetInfo info = mCreateWidgetInfo; 702 mCreateWidgetInfo = null; 703 704 if (mWidgetCleanupState == WIDGET_PRELOAD_PENDING) { 705 // We never did any preloading, so just remove pending callbacks to do so 706 removeCallbacks(mBindWidgetRunnable); 707 removeCallbacks(mInflateWidgetRunnable); 708 } else if (mWidgetCleanupState == WIDGET_BOUND) { 709 // Delete the widget id which was allocated 710 if (mWidgetLoadingId != -1) { 711 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 712 } 713 714 // We never got around to inflating the widget, so remove the callback to do so. 715 removeCallbacks(mInflateWidgetRunnable); 716 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 717 // Delete the widget id which was allocated 718 if (mWidgetLoadingId != -1) { 719 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 720 } 721 722 // The widget was inflated and added to the DragLayer -- remove it. 723 AppWidgetHostView widget = info.boundWidget; 724 mLauncher.getDragLayer().removeView(widget); 725 } 726 } 727 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 728 mWidgetLoadingId = -1; 729 mCreateWidgetInfo = null; 730 PagedViewWidget.resetShortPressTarget(); 731 } 732 733 @Override 734 public void cleanUpShortPress(View v) { 735 if (!mDraggingWidget) { 736 cleanupWidgetPreloading(false); 737 } 738 } 739 740 private boolean beginDraggingWidget(View v) { 741 mDraggingWidget = true; 742 // Get the widget preview as the drag representation 743 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 744 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 745 746 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 747 // we abort the drag. 748 if (image.getDrawable() == null) { 749 mDraggingWidget = false; 750 return false; 751 } 752 753 // Compose the drag image 754 Bitmap preview; 755 Bitmap outline; 756 float scale = 1f; 757 if (createItemInfo instanceof PendingAddWidgetInfo) { 758 // This can happen in some weird cases involving multi-touch. We can't start dragging 759 // the widget if this is null, so we break out. 760 if (mCreateWidgetInfo == null) { 761 return false; 762 } 763 764 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 765 createItemInfo = createWidgetInfo; 766 int spanX = createItemInfo.spanX; 767 int spanY = createItemInfo.spanY; 768 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 769 createWidgetInfo, true); 770 771 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 772 float minScale = 1.25f; 773 int maxWidth, maxHeight; 774 maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 775 maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 776 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 777 createWidgetInfo.icon, spanX, spanY, maxWidth, maxHeight); 778 779 // Determine the image view drawable scale relative to the preview 780 float[] mv = new float[9]; 781 Matrix m = new Matrix(); 782 m.setRectToRect( 783 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 784 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 785 (float) previewDrawable.getIntrinsicHeight()), 786 Matrix.ScaleToFit.START); 787 m.getValues(mv); 788 scale = (float) mv[0]; 789 } else { 790 PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag(); 791 Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo); 792 preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), 793 icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 794 795 mCanvas.setBitmap(preview); 796 mCanvas.save(); 797 renderDrawableToBitmap(icon, preview, 0, 0, 798 icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); 799 mCanvas.restore(); 800 mCanvas.setBitmap(null); 801 createItemInfo.spanX = createItemInfo.spanY = 1; 802 } 803 804 // Don't clip alpha values for the drag outline if we're using the default widget preview 805 boolean clipAlpha = !(createItemInfo instanceof PendingAddWidgetInfo && 806 (((PendingAddWidgetInfo) createItemInfo).previewImage == 0)); 807 808 // Save the preview for the outline generation, then dim the preview 809 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 810 false); 811 812 // Start the drag 813 mLauncher.lockScreenOrientation(); 814 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, clipAlpha); 815 mDragController.startDrag(image, preview, this, createItemInfo, 816 DragController.DRAG_ACTION_COPY, null, scale); 817 outline.recycle(); 818 preview.recycle(); 819 return true; 820 } 821 822 @Override 823 protected boolean beginDragging(final View v) { 824 if (!super.beginDragging(v)) return false; 825 826 if (v instanceof PagedViewIcon) { 827 beginDraggingApplication(v); 828 } else if (v instanceof PagedViewWidget) { 829 if (!beginDraggingWidget(v)) { 830 return false; 831 } 832 } 833 834 // We delay entering spring-loaded mode slightly to make sure the UI 835 // thready is free of any work. 836 postDelayed(new Runnable() { 837 @Override 838 public void run() { 839 // We don't enter spring-loaded mode if the drag has been cancelled 840 if (mLauncher.getDragController().isDragging()) { 841 // Dismiss the cling 842 mLauncher.dismissAllAppsCling(null); 843 844 // Reset the alpha on the dragged icon before we drag 845 resetDrawableState(); 846 847 // Go into spring loaded mode (must happen before we startDrag()) 848 mLauncher.enterSpringLoadedDragMode(); 849 } 850 } 851 }, 150); 852 853 return true; 854 } 855 856 /** 857 * Clean up after dragging. 858 * 859 * @param target where the item was dragged to (can be null if the item was flung) 860 */ 861 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 862 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 863 !(target instanceof DeleteDropTarget))) { 864 // Exit spring loaded mode if we have not successfully dropped or have not handled the 865 // drop in Workspace 866 mLauncher.exitSpringLoadedDragMode(); 867 } 868 mLauncher.unlockScreenOrientation(false); 869 } 870 871 @Override 872 public View getContent() { 873 return null; 874 } 875 876 @Override 877 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 878 mInTransition = true; 879 if (toWorkspace) { 880 cancelAllTasks(); 881 } 882 } 883 884 @Override 885 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 886 } 887 888 @Override 889 public void onLauncherTransitionStep(Launcher l, float t) { 890 } 891 892 @Override 893 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 894 mInTransition = false; 895 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 896 onSyncWidgetPageItems(d); 897 } 898 mDeferredSyncWidgetPageItems.clear(); 899 for (Runnable r : mDeferredPrepareLoadWidgetPreviewsTasks) { 900 r.run(); 901 } 902 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 903 mForceDrawAllChildrenNextFrame = !toWorkspace; 904 } 905 906 @Override 907 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 908 boolean success) { 909 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 910 if (isFlingToDelete) return; 911 912 endDragging(target, false, success); 913 914 // Display an error message if the drag failed due to there not being enough space on the 915 // target layout we were dropping on. 916 if (!success) { 917 boolean showOutOfSpaceMessage = false; 918 if (target instanceof Workspace) { 919 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 920 Workspace workspace = (Workspace) target; 921 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 922 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 923 if (layout != null) { 924 layout.calculateSpans(itemInfo); 925 showOutOfSpaceMessage = 926 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 927 } 928 } 929 if (showOutOfSpaceMessage) { 930 mLauncher.showOutOfSpaceMessage(false); 931 } 932 933 d.deferDragViewCleanupPostAnimation = false; 934 } 935 cleanupWidgetPreloading(success); 936 mDraggingWidget = false; 937 } 938 939 @Override 940 public void onFlingToDeleteCompleted() { 941 // We just dismiss the drag when we fling, so cleanup here 942 endDragging(null, true, true); 943 cleanupWidgetPreloading(false); 944 mDraggingWidget = false; 945 } 946 947 @Override 948 public boolean supportsFlingToDelete() { 949 return true; 950 } 951 952 @Override 953 protected void onDetachedFromWindow() { 954 super.onDetachedFromWindow(); 955 cancelAllTasks(); 956 } 957 958 public void clearAllWidgetPages() { 959 cancelAllTasks(); 960 int count = getChildCount(); 961 for (int i = 0; i < count; i++) { 962 View v = getPageAt(i); 963 if (v instanceof PagedViewGridLayout) { 964 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 965 mDirtyPageContent.set(i, true); 966 } 967 } 968 } 969 970 private void cancelAllTasks() { 971 // Clean up all the async tasks 972 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 973 while (iter.hasNext()) { 974 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 975 task.cancel(false); 976 iter.remove(); 977 mDirtyPageContent.set(task.page, true); 978 979 // We've already preallocated the views for the data to load into, so clear them as well 980 View v = getPageAt(task.page); 981 if (v instanceof PagedViewGridLayout) { 982 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 983 } 984 } 985 mDeferredSyncWidgetPageItems.clear(); 986 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 987 } 988 989 public void setContentType(ContentType type) { 990 if (type == ContentType.Widgets) { 991 invalidatePageData(mNumAppsPages, true); 992 } else if (type == ContentType.Applications) { 993 invalidatePageData(0, true); 994 } 995 } 996 997 protected void snapToPage(int whichPage, int delta, int duration) { 998 super.snapToPage(whichPage, delta, duration); 999 updateCurrentTab(whichPage); 1000 1001 // Update the thread priorities given the direction lookahead 1002 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1003 while (iter.hasNext()) { 1004 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1005 int pageIndex = task.page; 1006 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 1007 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 1008 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1009 } else { 1010 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 1011 } 1012 } 1013 } 1014 1015 private void updateCurrentTab(int currentPage) { 1016 AppsCustomizeTabHost tabHost = getTabHost(); 1017 if (tabHost != null) { 1018 String tag = tabHost.getCurrentTabTag(); 1019 if (tag != null) { 1020 if (currentPage >= mNumAppsPages && 1021 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 1022 tabHost.setCurrentTabFromContent(ContentType.Widgets); 1023 } else if (currentPage < mNumAppsPages && 1024 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1025 tabHost.setCurrentTabFromContent(ContentType.Applications); 1026 } 1027 } 1028 } 1029 } 1030 1031 /* 1032 * Apps PagedView implementation 1033 */ 1034 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 1035 int childCount = layout.getChildCount(); 1036 for (int i = 0; i < childCount; ++i) { 1037 layout.getChildAt(i).setVisibility(visibility); 1038 } 1039 } 1040 private void setupPage(PagedViewCellLayout layout) { 1041 layout.setCellCount(mCellCountX, mCellCountY); 1042 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 1043 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1044 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1045 1046 // Note: We force a measure here to get around the fact that when we do layout calculations 1047 // immediately after syncing, we don't have a proper width. That said, we already know the 1048 // expected page width, so we can actually optimize by hiding all the TextView-based 1049 // children that are expensive to measure, and let that happen naturally later. 1050 setVisibilityOnChildren(layout, View.GONE); 1051 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1052 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1053 layout.setMinimumWidth(getPageContentWidth()); 1054 layout.measure(widthSpec, heightSpec); 1055 setVisibilityOnChildren(layout, View.VISIBLE); 1056 } 1057 1058 public void syncAppsPageItems(int page, boolean immediate) { 1059 // ensure that we have the right number of items on the pages 1060 int numCells = mCellCountX * mCellCountY; 1061 int startIndex = page * numCells; 1062 int endIndex = Math.min(startIndex + numCells, mApps.size()); 1063 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 1064 1065 layout.removeAllViewsOnPage(); 1066 ArrayList<Object> items = new ArrayList<Object>(); 1067 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 1068 for (int i = startIndex; i < endIndex; ++i) { 1069 ApplicationInfo info = mApps.get(i); 1070 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 1071 R.layout.apps_customize_application, layout, false); 1072 icon.applyFromApplicationInfo(info, true, this); 1073 icon.setOnClickListener(this); 1074 icon.setOnLongClickListener(this); 1075 icon.setOnTouchListener(this); 1076 icon.setOnKeyListener(this); 1077 1078 int index = i - startIndex; 1079 int x = index % mCellCountX; 1080 int y = index / mCellCountX; 1081 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 1082 1083 items.add(info); 1084 images.add(info.iconBitmap); 1085 } 1086 1087 layout.createHardwareLayers(); 1088 } 1089 1090 /** 1091 * A helper to return the priority for loading of the specified widget page. 1092 */ 1093 private int getWidgetPageLoadPriority(int page) { 1094 // If we are snapping to another page, use that index as the target page index 1095 int toPage = mCurrentPage; 1096 if (mNextPage > -1) { 1097 toPage = mNextPage; 1098 } 1099 1100 // We use the distance from the target page as an initial guess of priority, but if there 1101 // are no pages of higher priority than the page specified, then bump up the priority of 1102 // the specified page. 1103 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1104 int minPageDiff = Integer.MAX_VALUE; 1105 while (iter.hasNext()) { 1106 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1107 minPageDiff = Math.abs(task.page - toPage); 1108 } 1109 1110 int rawPageDiff = Math.abs(page - toPage); 1111 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1112 } 1113 /** 1114 * Return the appropriate thread priority for loading for a given page (we give the current 1115 * page much higher priority) 1116 */ 1117 private int getThreadPriorityForPage(int page) { 1118 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1119 int pageDiff = getWidgetPageLoadPriority(page); 1120 if (pageDiff <= 0) { 1121 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1122 } else if (pageDiff <= 1) { 1123 return Process.THREAD_PRIORITY_LOWEST; 1124 } else { 1125 return Process.THREAD_PRIORITY_LOWEST; 1126 } 1127 } 1128 private int getSleepForPage(int page) { 1129 int pageDiff = getWidgetPageLoadPriority(page); 1130 return Math.max(0, pageDiff * sPageSleepDelay); 1131 } 1132 /** 1133 * Creates and executes a new AsyncTask to load a page of widget previews. 1134 */ 1135 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1136 int cellWidth, int cellHeight, int cellCountX) { 1137 1138 // Prune all tasks that are no longer needed 1139 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1140 while (iter.hasNext()) { 1141 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1142 int taskPage = task.page; 1143 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1144 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1145 task.cancel(false); 1146 iter.remove(); 1147 } else { 1148 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1149 } 1150 } 1151 1152 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1153 final int sleepMs = getSleepForPage(page); 1154 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1155 new AsyncTaskCallback() { 1156 @Override 1157 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1158 try { 1159 try { 1160 Thread.sleep(sleepMs); 1161 } catch (Exception e) {} 1162 loadWidgetPreviewsInBackground(task, data); 1163 } finally { 1164 if (task.isCancelled()) { 1165 data.cleanup(true); 1166 } 1167 } 1168 } 1169 }, 1170 new AsyncTaskCallback() { 1171 @Override 1172 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1173 mRunningTasks.remove(task); 1174 if (task.isCancelled()) return; 1175 // do cleanup inside onSyncWidgetPageItems 1176 onSyncWidgetPageItems(data); 1177 } 1178 }); 1179 1180 // Ensure that the task is appropriately prioritized and runs in parallel 1181 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1182 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1183 t.setThreadPriority(getThreadPriorityForPage(page)); 1184 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1185 mRunningTasks.add(t); 1186 } 1187 1188 /* 1189 * Widgets PagedView implementation 1190 */ 1191 private void setupPage(PagedViewGridLayout layout) { 1192 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1193 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1194 1195 // Note: We force a measure here to get around the fact that when we do layout calculations 1196 // immediately after syncing, we don't have a proper width. 1197 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1198 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1199 layout.setMinimumWidth(getPageContentWidth()); 1200 layout.measure(widthSpec, heightSpec); 1201 } 1202 1203 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1204 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 1205 } 1206 1207 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1208 float scale) { 1209 if (bitmap != null) { 1210 Canvas c = new Canvas(bitmap); 1211 c.scale(scale, scale); 1212 Rect oldBounds = d.copyBounds(); 1213 d.setBounds(x, y, x + w, y + h); 1214 d.draw(c); 1215 d.setBounds(oldBounds); // Restore the bounds 1216 c.setBitmap(null); 1217 } 1218 } 1219 1220 private Bitmap getShortcutPreview(ResolveInfo info, int maxWidth, int maxHeight) { 1221 Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 1222 final Canvas c = mCachedShortcutPreviewCanvas.get(); 1223 if (tempBitmap == null || 1224 tempBitmap.getWidth() != maxWidth || 1225 tempBitmap.getHeight() != maxHeight) { 1226 tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1227 mCachedShortcutPreviewBitmap.set(tempBitmap); 1228 } else { 1229 c.setBitmap(tempBitmap); 1230 c.drawColor(0, PorterDuff.Mode.CLEAR); 1231 c.setBitmap(null); 1232 } 1233 // Render the icon 1234 Drawable icon = mIconCache.getFullResIcon(info); 1235 1236 int paddingTop = 1237 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 1238 int paddingLeft = 1239 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 1240 int paddingRight = 1241 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 1242 1243 int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 1244 1245 renderDrawableToBitmap( 1246 icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 1247 1248 Bitmap preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1249 c.setBitmap(preview); 1250 Paint p = mCachedShortcutPreviewPaint.get(); 1251 if (p == null) { 1252 p = new Paint(); 1253 ColorMatrix colorMatrix = new ColorMatrix(); 1254 colorMatrix.setSaturation(0); 1255 p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 1256 p.setAlpha((int) (255 * 0.06f)); 1257 //float density = 1f; 1258 //p.setMaskFilter(new BlurMaskFilter(15*density, BlurMaskFilter.Blur.NORMAL)); 1259 mCachedShortcutPreviewPaint.set(p); 1260 } 1261 c.drawBitmap(tempBitmap, 0, 0, p); 1262 c.setBitmap(null); 1263 1264 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 1265 1266 return preview; 1267 } 1268 1269 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, 1270 int iconId, int cellHSpan, int cellVSpan, int maxWidth, 1271 int maxHeight) { 1272 // Load the preview image if possible 1273 String packageName = provider.getPackageName(); 1274 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1275 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1276 1277 Drawable drawable = null; 1278 if (previewImage != 0) { 1279 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1280 if (drawable == null) { 1281 Log.w(TAG, "Can't load widget preview drawable 0x" + 1282 Integer.toHexString(previewImage) + " for provider: " + provider); 1283 } 1284 } 1285 1286 int bitmapWidth; 1287 int bitmapHeight; 1288 Bitmap defaultPreview = null; 1289 boolean widgetPreviewExists = (drawable != null); 1290 if (widgetPreviewExists) { 1291 bitmapWidth = drawable.getIntrinsicWidth(); 1292 bitmapHeight = drawable.getIntrinsicHeight(); 1293 } else { 1294 // Generate a preview image if we couldn't load one 1295 if (cellHSpan < 1) cellHSpan = 1; 1296 if (cellVSpan < 1) cellVSpan = 1; 1297 1298 BitmapDrawable previewDrawable = (BitmapDrawable) getResources() 1299 .getDrawable(R.drawable.widget_preview_tile); 1300 final int previewDrawableWidth = previewDrawable 1301 .getIntrinsicWidth(); 1302 final int previewDrawableHeight = previewDrawable 1303 .getIntrinsicHeight(); 1304 bitmapWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 1305 bitmapHeight = previewDrawableHeight * cellVSpan; 1306 1307 defaultPreview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1308 Config.ARGB_8888); 1309 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1310 c.setBitmap(defaultPreview); 1311 previewDrawable.setBounds(0, 0, bitmapWidth, bitmapHeight); 1312 previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 1313 Shader.TileMode.REPEAT); 1314 previewDrawable.draw(c); 1315 c.setBitmap(null); 1316 1317 // Draw the icon in the top left corner 1318 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1319 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1320 float iconScale = Math.min((float) smallestSide 1321 / (mAppIconSize + 2 * minOffset), 1f); 1322 1323 try { 1324 Drawable icon = null; 1325 int hoffset = 1326 (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 1327 int yoffset = 1328 (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 1329 if (iconId > 0) 1330 icon = mIconCache.getFullResIcon(packageName, iconId); 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 if (mInTransition) { 1470 mDeferredPrepareLoadWidgetPreviewsTasks.add(this); 1471 } else { 1472 prepareLoadWidgetPreviewsTask(page, items, 1473 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1474 } 1475 } 1476 } 1477 }); 1478 } 1479 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1480 AsyncTaskPageData data) { 1481 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1482 // previews synchronously 1483 if (task != null) { 1484 // Ensure that this task starts running at the correct priority 1485 task.syncThreadPriority(); 1486 } 1487 1488 // Load each of the widget/shortcut previews 1489 ArrayList<Object> items = data.items; 1490 ArrayList<Bitmap> images = data.generatedImages; 1491 int count = items.size(); 1492 for (int i = 0; i < count; ++i) { 1493 if (task != null) { 1494 // Ensure we haven't been cancelled yet 1495 if (task.isCancelled()) break; 1496 // Before work on each item, ensure that this task is running at the correct 1497 // priority 1498 task.syncThreadPriority(); 1499 } 1500 1501 Object rawInfo = items.get(i); 1502 if (rawInfo instanceof AppWidgetProviderInfo) { 1503 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1504 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1505 1506 int maxWidth = Math.min(data.maxImageWidth, 1507 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1508 int maxHeight = Math.min(data.maxImageHeight, 1509 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1510 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1511 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1512 images.add(b); 1513 } else if (rawInfo instanceof ResolveInfo) { 1514 // Fill in the shortcuts information 1515 ResolveInfo info = (ResolveInfo) rawInfo; 1516 images.add(getShortcutPreview(info, data.maxImageWidth, data.maxImageHeight)); 1517 } 1518 } 1519 } 1520 1521 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1522 if (mInTransition) { 1523 mDeferredSyncWidgetPageItems.add(data); 1524 return; 1525 } 1526 try { 1527 int page = data.page; 1528 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1529 1530 ArrayList<Object> items = data.items; 1531 int count = items.size(); 1532 for (int i = 0; i < count; ++i) { 1533 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1534 if (widget != null) { 1535 Bitmap preview = data.generatedImages.get(i); 1536 widget.applyPreview(new FastBitmapDrawable(preview), i); 1537 } 1538 } 1539 1540 layout.createHardwareLayer(); 1541 invalidate(); 1542 1543 // Update all thread priorities 1544 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1545 while (iter.hasNext()) { 1546 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1547 int pageIndex = task.page; 1548 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1549 } 1550 } finally { 1551 data.cleanup(false); 1552 } 1553 } 1554 1555 @Override 1556 public void syncPages() { 1557 removeAllViews(); 1558 cancelAllTasks(); 1559 1560 Context context = getContext(); 1561 for (int j = 0; j < mNumWidgetPages; ++j) { 1562 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1563 mWidgetCountY); 1564 setupPage(layout); 1565 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1566 LayoutParams.MATCH_PARENT)); 1567 } 1568 1569 for (int i = 0; i < mNumAppsPages; ++i) { 1570 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1571 setupPage(layout); 1572 addView(layout); 1573 } 1574 } 1575 1576 @Override 1577 public void syncPageItems(int page, boolean immediate) { 1578 if (page < mNumAppsPages) { 1579 syncAppsPageItems(page, immediate); 1580 } else { 1581 syncWidgetPageItems(page, immediate); 1582 } 1583 } 1584 1585 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1586 // it is in the z-order. This is important to insure touch events are handled correctly. 1587 View getPageAt(int index) { 1588 return getChildAt(indexToPage(index)); 1589 } 1590 1591 @Override 1592 protected int indexToPage(int index) { 1593 return getChildCount() - index - 1; 1594 } 1595 1596 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1597 @Override 1598 protected void screenScrolled(int screenCenter) { 1599 super.screenScrolled(screenCenter); 1600 1601 for (int i = 0; i < getChildCount(); i++) { 1602 View v = getPageAt(i); 1603 if (v != null) { 1604 float scrollProgress = getScrollProgress(screenCenter, v, i); 1605 1606 float interpolatedProgress = 1607 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1608 float scale = (1 - interpolatedProgress) + 1609 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1610 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1611 1612 float alpha; 1613 1614 if (scrollProgress < 0) { 1615 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1616 1 - Math.abs(scrollProgress)) : 1.0f; 1617 } else { 1618 // On large screens we need to fade the page as it nears its leftmost position 1619 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1620 } 1621 1622 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1623 int pageWidth = v.getMeasuredWidth(); 1624 int pageHeight = v.getMeasuredHeight(); 1625 1626 if (PERFORM_OVERSCROLL_ROTATION) { 1627 if (i == 0 && scrollProgress < 0) { 1628 // Overscroll to the left 1629 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1630 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1631 scale = 1.0f; 1632 alpha = 1.0f; 1633 // On the first page, we don't want the page to have any lateral motion 1634 translationX = 0; 1635 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1636 // Overscroll to the right 1637 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1638 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1639 scale = 1.0f; 1640 alpha = 1.0f; 1641 // On the last page, we don't want the page to have any lateral motion. 1642 translationX = 0; 1643 } else { 1644 v.setPivotY(pageHeight / 2.0f); 1645 v.setPivotX(pageWidth / 2.0f); 1646 v.setRotationY(0f); 1647 } 1648 } 1649 1650 v.setTranslationX(translationX); 1651 v.setScaleX(scale); 1652 v.setScaleY(scale); 1653 v.setAlpha(alpha); 1654 1655 // If the view has 0 alpha, we set it to be invisible so as to prevent 1656 // it from accepting touches 1657 if (alpha == 0) { 1658 v.setVisibility(INVISIBLE); 1659 } else if (v.getVisibility() != VISIBLE) { 1660 v.setVisibility(VISIBLE); 1661 } 1662 } 1663 } 1664 } 1665 1666 protected void overScroll(float amount) { 1667 acceleratedOverScroll(amount); 1668 } 1669 1670 /** 1671 * Used by the parent to get the content width to set the tab bar to 1672 * @return 1673 */ 1674 public int getPageContentWidth() { 1675 return mContentWidth; 1676 } 1677 1678 @Override 1679 protected void onPageEndMoving() { 1680 super.onPageEndMoving(); 1681 mForceDrawAllChildrenNextFrame = true; 1682 // We reset the save index when we change pages so that it will be recalculated on next 1683 // rotation 1684 mSaveInstanceStateItemIndex = -1; 1685 } 1686 1687 /* 1688 * AllAppsView implementation 1689 */ 1690 public void setup(Launcher launcher, DragController dragController) { 1691 mLauncher = launcher; 1692 mDragController = dragController; 1693 } 1694 1695 /** 1696 * We should call thise method whenever the core data changes (mApps, mWidgets) so that we can 1697 * appropriately determine when to invalidate the PagedView page data. In cases where the data 1698 * has yet to be set, we can requestLayout() and wait for onDataReady() to be called in the 1699 * next onMeasure() pass, which will trigger an invalidatePageData() itself. 1700 */ 1701 private void invalidateOnDataChange() { 1702 if (!isDataReady()) { 1703 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1704 // request a layout to trigger the page data when ready. 1705 requestLayout(); 1706 } else { 1707 cancelAllTasks(); 1708 invalidatePageData(); 1709 } 1710 } 1711 1712 public void setApps(ArrayList<ApplicationInfo> list) { 1713 mApps = list; 1714 Collections.sort(mApps, LauncherModel.getAppNameComparator()); 1715 updatePageCounts(); 1716 invalidateOnDataChange(); 1717 } 1718 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1719 // We add it in place, in alphabetical order 1720 int count = list.size(); 1721 for (int i = 0; i < count; ++i) { 1722 ApplicationInfo info = list.get(i); 1723 int index = Collections.binarySearch(mApps, info, LauncherModel.getAppNameComparator()); 1724 if (index < 0) { 1725 mApps.add(-(index + 1), info); 1726 } 1727 } 1728 } 1729 public void addApps(ArrayList<ApplicationInfo> list) { 1730 addAppsWithoutInvalidate(list); 1731 updatePageCounts(); 1732 invalidateOnDataChange(); 1733 } 1734 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1735 ComponentName removeComponent = item.intent.getComponent(); 1736 int length = list.size(); 1737 for (int i = 0; i < length; ++i) { 1738 ApplicationInfo info = list.get(i); 1739 if (info.intent.getComponent().equals(removeComponent)) { 1740 return i; 1741 } 1742 } 1743 return -1; 1744 } 1745 private int findAppByPackage(List<ApplicationInfo> list, String packageName) { 1746 int length = list.size(); 1747 for (int i = 0; i < length; ++i) { 1748 ApplicationInfo info = list.get(i); 1749 if (ItemInfo.getPackageName(info.intent).equals(packageName)) { 1750 return i; 1751 } 1752 } 1753 return -1; 1754 } 1755 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1756 // loop through all the apps and remove apps that have the same component 1757 int length = list.size(); 1758 for (int i = 0; i < length; ++i) { 1759 ApplicationInfo info = list.get(i); 1760 int removeIndex = findAppByComponent(mApps, info); 1761 if (removeIndex > -1) { 1762 mApps.remove(removeIndex); 1763 } 1764 } 1765 } 1766 private void removeAppsWithPackageNameWithoutInvalidate(ArrayList<String> packageNames) { 1767 // loop through all the package names and remove apps that have the same package name 1768 for (String pn : packageNames) { 1769 int removeIndex = findAppByPackage(mApps, pn); 1770 while (removeIndex > -1) { 1771 mApps.remove(removeIndex); 1772 removeIndex = findAppByPackage(mApps, pn); 1773 } 1774 } 1775 } 1776 public void removeApps(ArrayList<String> packageNames) { 1777 removeAppsWithPackageNameWithoutInvalidate(packageNames); 1778 updatePageCounts(); 1779 invalidateOnDataChange(); 1780 } 1781 public void updateApps(ArrayList<ApplicationInfo> list) { 1782 // We remove and re-add the updated applications list because it's properties may have 1783 // changed (ie. the title), and this will ensure that the items will be in their proper 1784 // place in the list. 1785 removeAppsWithoutInvalidate(list); 1786 addAppsWithoutInvalidate(list); 1787 updatePageCounts(); 1788 invalidateOnDataChange(); 1789 } 1790 1791 public void reset() { 1792 // If we have reset, then we should not continue to restore the previous state 1793 mSaveInstanceStateItemIndex = -1; 1794 1795 AppsCustomizeTabHost tabHost = getTabHost(); 1796 String tag = tabHost.getCurrentTabTag(); 1797 if (tag != null) { 1798 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1799 tabHost.setCurrentTabFromContent(ContentType.Applications); 1800 } 1801 } 1802 1803 if (mCurrentPage != 0) { 1804 invalidatePageData(0); 1805 } 1806 } 1807 1808 private AppsCustomizeTabHost getTabHost() { 1809 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1810 } 1811 1812 public void dumpState() { 1813 // TODO: Dump information related to current list of Applications, Widgets, etc. 1814 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1815 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1816 } 1817 1818 private void dumpAppWidgetProviderInfoList(String tag, String label, 1819 ArrayList<Object> list) { 1820 Log.d(tag, label + " size=" + list.size()); 1821 for (Object i: list) { 1822 if (i instanceof AppWidgetProviderInfo) { 1823 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1824 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1825 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1826 + " initialLayout=" + info.initialLayout 1827 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1828 } else if (i instanceof ResolveInfo) { 1829 ResolveInfo info = (ResolveInfo) i; 1830 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1831 + info.icon); 1832 } 1833 } 1834 } 1835 1836 public void surrender() { 1837 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1838 // should stop this now. 1839 1840 // Stop all background tasks 1841 cancelAllTasks(); 1842 } 1843 1844 @Override 1845 public void iconPressed(PagedViewIcon icon) { 1846 // Reset the previously pressed icon and store a reference to the pressed icon so that 1847 // we can reset it on return to Launcher (in Launcher.onResume()) 1848 if (mPressedIcon != null) { 1849 mPressedIcon.resetDrawableState(); 1850 } 1851 mPressedIcon = icon; 1852 } 1853 1854 public void resetDrawableState() { 1855 if (mPressedIcon != null) { 1856 mPressedIcon.resetDrawableState(); 1857 mPressedIcon = null; 1858 } 1859 } 1860 1861 /* 1862 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1863 * widget previews in the background with the AsyncTasks. 1864 */ 1865 final static int sLookBehindPageCount = 2; 1866 final static int sLookAheadPageCount = 2; 1867 protected int getAssociatedLowerPageBound(int page) { 1868 final int count = getChildCount(); 1869 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1870 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1871 return windowMinIndex; 1872 } 1873 protected int getAssociatedUpperPageBound(int page) { 1874 final int count = getChildCount(); 1875 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1876 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1877 count - 1); 1878 return windowMaxIndex; 1879 } 1880 1881 @Override 1882 protected String getCurrentPageDescription() { 1883 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1884 int stringId = R.string.default_scroll_format; 1885 int count = 0; 1886 1887 if (page < mNumAppsPages) { 1888 stringId = R.string.apps_customize_apps_scroll_format; 1889 count = mNumAppsPages; 1890 } else { 1891 page -= mNumAppsPages; 1892 stringId = R.string.apps_customize_widgets_scroll_format; 1893 count = mNumWidgetPages; 1894 } 1895 1896 return String.format(getContext().getString(stringId), page + 1, count); 1897 } 1898} 1899