AppsCustomizePagedView.java revision dd70d66852bb8bd16f55796e546ba290360d1198
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 final Bundle options = getDefaultOptionsForWidget(mLauncher, info); 632 633 if (pInfo.configure != null) { 634 info.bindOptions = options; 635 return; 636 } 637 638 mWidgetCleanupState = WIDGET_PRELOAD_PENDING; 639 mBindWidgetRunnable = new Runnable() { 640 @Override 641 public void run() { 642 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 643 // Options will be null for platforms with JB or lower, so this serves as an 644 // SDK level check. 645 if (options == null) { 646 if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed( 647 mWidgetLoadingId, info.componentName)) { 648 mWidgetCleanupState = WIDGET_BOUND; 649 } 650 } else { 651 if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed( 652 mWidgetLoadingId, info.componentName, options)) { 653 mWidgetCleanupState = WIDGET_BOUND; 654 } 655 } 656 } 657 }; 658 post(mBindWidgetRunnable); 659 660 mInflateWidgetRunnable = new Runnable() { 661 @Override 662 public void run() { 663 if (mWidgetCleanupState != WIDGET_BOUND) { 664 return; 665 } 666 AppWidgetHostView hostView = mLauncher. 667 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 668 info.boundWidget = hostView; 669 mWidgetCleanupState = WIDGET_INFLATED; 670 hostView.setVisibility(INVISIBLE); 671 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 672 info.spanY, info, false); 673 674 // We want the first widget layout to be the correct size. This will be important 675 // for width size reporting to the AppWidgetManager. 676 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 677 unScaledSize[1]); 678 lp.x = lp.y = 0; 679 lp.customPosition = true; 680 hostView.setLayoutParams(lp); 681 mLauncher.getDragLayer().addView(hostView); 682 } 683 }; 684 post(mInflateWidgetRunnable); 685 } 686 687 @Override 688 public void onShortPress(View v) { 689 // We are anticipating a long press, and we use this time to load bind and instantiate 690 // the widget. This will need to be cleaned up if it turns out no long press occurs. 691 if (mCreateWidgetInfo != null) { 692 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 693 cleanupWidgetPreloading(false); 694 } 695 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 696 preloadWidget(mCreateWidgetInfo); 697 } 698 699 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 700 if (!widgetWasAdded) { 701 // If the widget was not added, we may need to do further cleanup. 702 PendingAddWidgetInfo info = mCreateWidgetInfo; 703 mCreateWidgetInfo = null; 704 705 if (mWidgetCleanupState == WIDGET_PRELOAD_PENDING) { 706 // We never did any preloading, so just remove pending callbacks to do so 707 removeCallbacks(mBindWidgetRunnable); 708 removeCallbacks(mInflateWidgetRunnable); 709 } else if (mWidgetCleanupState == WIDGET_BOUND) { 710 // Delete the widget id which was allocated 711 if (mWidgetLoadingId != -1) { 712 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 713 } 714 715 // We never got around to inflating the widget, so remove the callback to do so. 716 removeCallbacks(mInflateWidgetRunnable); 717 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 718 // Delete the widget id which was allocated 719 if (mWidgetLoadingId != -1) { 720 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 721 } 722 723 // The widget was inflated and added to the DragLayer -- remove it. 724 AppWidgetHostView widget = info.boundWidget; 725 mLauncher.getDragLayer().removeView(widget); 726 } 727 } 728 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 729 mWidgetLoadingId = -1; 730 mCreateWidgetInfo = null; 731 PagedViewWidget.resetShortPressTarget(); 732 } 733 734 @Override 735 public void cleanUpShortPress(View v) { 736 if (!mDraggingWidget) { 737 cleanupWidgetPreloading(false); 738 } 739 } 740 741 private boolean beginDraggingWidget(View v) { 742 mDraggingWidget = true; 743 // Get the widget preview as the drag representation 744 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 745 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 746 747 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 748 // we abort the drag. 749 if (image.getDrawable() == null) { 750 mDraggingWidget = false; 751 return false; 752 } 753 754 // Compose the drag image 755 Bitmap preview; 756 Bitmap outline; 757 float scale = 1f; 758 if (createItemInfo instanceof PendingAddWidgetInfo) { 759 // This can happen in some weird cases involving multi-touch. We can't start dragging 760 // the widget if this is null, so we break out. 761 if (mCreateWidgetInfo == null) { 762 return false; 763 } 764 765 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 766 createItemInfo = createWidgetInfo; 767 int spanX = createItemInfo.spanX; 768 int spanY = createItemInfo.spanY; 769 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 770 createWidgetInfo, true); 771 772 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 773 float minScale = 1.25f; 774 int maxWidth, maxHeight; 775 maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 776 maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 777 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 778 createWidgetInfo.icon, spanX, spanY, maxWidth, maxHeight); 779 780 // Determine the image view drawable scale relative to the preview 781 float[] mv = new float[9]; 782 Matrix m = new Matrix(); 783 m.setRectToRect( 784 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 785 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 786 (float) previewDrawable.getIntrinsicHeight()), 787 Matrix.ScaleToFit.START); 788 m.getValues(mv); 789 scale = (float) mv[0]; 790 } else { 791 PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag(); 792 Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo); 793 preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), 794 icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 795 796 mCanvas.setBitmap(preview); 797 mCanvas.save(); 798 renderDrawableToBitmap(icon, preview, 0, 0, 799 icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); 800 mCanvas.restore(); 801 mCanvas.setBitmap(null); 802 createItemInfo.spanX = createItemInfo.spanY = 1; 803 } 804 805 // Don't clip alpha values for the drag outline if we're using the default widget preview 806 boolean clipAlpha = !(createItemInfo instanceof PendingAddWidgetInfo && 807 (((PendingAddWidgetInfo) createItemInfo).previewImage == 0)); 808 809 // Save the preview for the outline generation, then dim the preview 810 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 811 false); 812 813 // Start the drag 814 mLauncher.lockScreenOrientation(); 815 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, clipAlpha); 816 mDragController.startDrag(image, preview, this, createItemInfo, 817 DragController.DRAG_ACTION_COPY, null, scale); 818 outline.recycle(); 819 preview.recycle(); 820 return true; 821 } 822 823 @Override 824 protected boolean beginDragging(final View v) { 825 if (!super.beginDragging(v)) return false; 826 827 if (v instanceof PagedViewIcon) { 828 beginDraggingApplication(v); 829 } else if (v instanceof PagedViewWidget) { 830 if (!beginDraggingWidget(v)) { 831 return false; 832 } 833 } 834 835 // We delay entering spring-loaded mode slightly to make sure the UI 836 // thready is free of any work. 837 postDelayed(new Runnable() { 838 @Override 839 public void run() { 840 // We don't enter spring-loaded mode if the drag has been cancelled 841 if (mLauncher.getDragController().isDragging()) { 842 // Dismiss the cling 843 mLauncher.dismissAllAppsCling(null); 844 845 // Reset the alpha on the dragged icon before we drag 846 resetDrawableState(); 847 848 // Go into spring loaded mode (must happen before we startDrag()) 849 mLauncher.enterSpringLoadedDragMode(); 850 } 851 } 852 }, 150); 853 854 return true; 855 } 856 857 /** 858 * Clean up after dragging. 859 * 860 * @param target where the item was dragged to (can be null if the item was flung) 861 */ 862 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 863 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 864 !(target instanceof DeleteDropTarget))) { 865 // Exit spring loaded mode if we have not successfully dropped or have not handled the 866 // drop in Workspace 867 mLauncher.exitSpringLoadedDragMode(); 868 } 869 mLauncher.unlockScreenOrientation(false); 870 } 871 872 @Override 873 public View getContent() { 874 return null; 875 } 876 877 @Override 878 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 879 mInTransition = true; 880 if (toWorkspace) { 881 cancelAllTasks(); 882 } 883 } 884 885 @Override 886 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 887 } 888 889 @Override 890 public void onLauncherTransitionStep(Launcher l, float t) { 891 } 892 893 @Override 894 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 895 mInTransition = false; 896 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 897 onSyncWidgetPageItems(d); 898 } 899 mDeferredSyncWidgetPageItems.clear(); 900 for (Runnable r : mDeferredPrepareLoadWidgetPreviewsTasks) { 901 r.run(); 902 } 903 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 904 mForceDrawAllChildrenNextFrame = !toWorkspace; 905 } 906 907 @Override 908 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 909 boolean success) { 910 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 911 if (isFlingToDelete) return; 912 913 endDragging(target, false, success); 914 915 // Display an error message if the drag failed due to there not being enough space on the 916 // target layout we were dropping on. 917 if (!success) { 918 boolean showOutOfSpaceMessage = false; 919 if (target instanceof Workspace) { 920 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 921 Workspace workspace = (Workspace) target; 922 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 923 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 924 if (layout != null) { 925 layout.calculateSpans(itemInfo); 926 showOutOfSpaceMessage = 927 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 928 } 929 } 930 if (showOutOfSpaceMessage) { 931 mLauncher.showOutOfSpaceMessage(false); 932 } 933 934 d.deferDragViewCleanupPostAnimation = false; 935 } 936 cleanupWidgetPreloading(success); 937 mDraggingWidget = false; 938 } 939 940 @Override 941 public void onFlingToDeleteCompleted() { 942 // We just dismiss the drag when we fling, so cleanup here 943 endDragging(null, true, true); 944 cleanupWidgetPreloading(false); 945 mDraggingWidget = false; 946 } 947 948 @Override 949 public boolean supportsFlingToDelete() { 950 return true; 951 } 952 953 @Override 954 protected void onDetachedFromWindow() { 955 super.onDetachedFromWindow(); 956 cancelAllTasks(); 957 } 958 959 public void clearAllWidgetPages() { 960 cancelAllTasks(); 961 int count = getChildCount(); 962 for (int i = 0; i < count; i++) { 963 View v = getPageAt(i); 964 if (v instanceof PagedViewGridLayout) { 965 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 966 mDirtyPageContent.set(i, true); 967 } 968 } 969 } 970 971 private void cancelAllTasks() { 972 // Clean up all the async tasks 973 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 974 while (iter.hasNext()) { 975 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 976 task.cancel(false); 977 iter.remove(); 978 mDirtyPageContent.set(task.page, true); 979 980 // We've already preallocated the views for the data to load into, so clear them as well 981 View v = getPageAt(task.page); 982 if (v instanceof PagedViewGridLayout) { 983 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 984 } 985 } 986 mDeferredSyncWidgetPageItems.clear(); 987 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 988 } 989 990 public void setContentType(ContentType type) { 991 if (type == ContentType.Widgets) { 992 invalidatePageData(mNumAppsPages, true); 993 } else if (type == ContentType.Applications) { 994 invalidatePageData(0, true); 995 } 996 } 997 998 protected void snapToPage(int whichPage, int delta, int duration) { 999 super.snapToPage(whichPage, delta, duration); 1000 updateCurrentTab(whichPage); 1001 1002 // Update the thread priorities given the direction lookahead 1003 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1004 while (iter.hasNext()) { 1005 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1006 int pageIndex = task.page; 1007 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 1008 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 1009 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1010 } else { 1011 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 1012 } 1013 } 1014 } 1015 1016 private void updateCurrentTab(int currentPage) { 1017 AppsCustomizeTabHost tabHost = getTabHost(); 1018 if (tabHost != null) { 1019 String tag = tabHost.getCurrentTabTag(); 1020 if (tag != null) { 1021 if (currentPage >= mNumAppsPages && 1022 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 1023 tabHost.setCurrentTabFromContent(ContentType.Widgets); 1024 } else if (currentPage < mNumAppsPages && 1025 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1026 tabHost.setCurrentTabFromContent(ContentType.Applications); 1027 } 1028 } 1029 } 1030 } 1031 1032 /* 1033 * Apps PagedView implementation 1034 */ 1035 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 1036 int childCount = layout.getChildCount(); 1037 for (int i = 0; i < childCount; ++i) { 1038 layout.getChildAt(i).setVisibility(visibility); 1039 } 1040 } 1041 private void setupPage(PagedViewCellLayout layout) { 1042 layout.setCellCount(mCellCountX, mCellCountY); 1043 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 1044 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1045 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1046 1047 // Note: We force a measure here to get around the fact that when we do layout calculations 1048 // immediately after syncing, we don't have a proper width. That said, we already know the 1049 // expected page width, so we can actually optimize by hiding all the TextView-based 1050 // children that are expensive to measure, and let that happen naturally later. 1051 setVisibilityOnChildren(layout, View.GONE); 1052 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1053 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1054 layout.setMinimumWidth(getPageContentWidth()); 1055 layout.measure(widthSpec, heightSpec); 1056 setVisibilityOnChildren(layout, View.VISIBLE); 1057 } 1058 1059 public void syncAppsPageItems(int page, boolean immediate) { 1060 // ensure that we have the right number of items on the pages 1061 int numCells = mCellCountX * mCellCountY; 1062 int startIndex = page * numCells; 1063 int endIndex = Math.min(startIndex + numCells, mApps.size()); 1064 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 1065 1066 layout.removeAllViewsOnPage(); 1067 ArrayList<Object> items = new ArrayList<Object>(); 1068 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 1069 for (int i = startIndex; i < endIndex; ++i) { 1070 ApplicationInfo info = mApps.get(i); 1071 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 1072 R.layout.apps_customize_application, layout, false); 1073 icon.applyFromApplicationInfo(info, true, this); 1074 icon.setOnClickListener(this); 1075 icon.setOnLongClickListener(this); 1076 icon.setOnTouchListener(this); 1077 icon.setOnKeyListener(this); 1078 1079 int index = i - startIndex; 1080 int x = index % mCellCountX; 1081 int y = index / mCellCountX; 1082 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 1083 1084 items.add(info); 1085 images.add(info.iconBitmap); 1086 } 1087 1088 layout.createHardwareLayers(); 1089 } 1090 1091 /** 1092 * A helper to return the priority for loading of the specified widget page. 1093 */ 1094 private int getWidgetPageLoadPriority(int page) { 1095 // If we are snapping to another page, use that index as the target page index 1096 int toPage = mCurrentPage; 1097 if (mNextPage > -1) { 1098 toPage = mNextPage; 1099 } 1100 1101 // We use the distance from the target page as an initial guess of priority, but if there 1102 // are no pages of higher priority than the page specified, then bump up the priority of 1103 // the specified page. 1104 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1105 int minPageDiff = Integer.MAX_VALUE; 1106 while (iter.hasNext()) { 1107 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1108 minPageDiff = Math.abs(task.page - toPage); 1109 } 1110 1111 int rawPageDiff = Math.abs(page - toPage); 1112 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1113 } 1114 /** 1115 * Return the appropriate thread priority for loading for a given page (we give the current 1116 * page much higher priority) 1117 */ 1118 private int getThreadPriorityForPage(int page) { 1119 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1120 int pageDiff = getWidgetPageLoadPriority(page); 1121 if (pageDiff <= 0) { 1122 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1123 } else if (pageDiff <= 1) { 1124 return Process.THREAD_PRIORITY_LOWEST; 1125 } else { 1126 return Process.THREAD_PRIORITY_LOWEST; 1127 } 1128 } 1129 private int getSleepForPage(int page) { 1130 int pageDiff = getWidgetPageLoadPriority(page); 1131 return Math.max(0, pageDiff * sPageSleepDelay); 1132 } 1133 /** 1134 * Creates and executes a new AsyncTask to load a page of widget previews. 1135 */ 1136 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1137 int cellWidth, int cellHeight, int cellCountX) { 1138 1139 // Prune all tasks that are no longer needed 1140 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1141 while (iter.hasNext()) { 1142 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1143 int taskPage = task.page; 1144 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1145 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1146 task.cancel(false); 1147 iter.remove(); 1148 } else { 1149 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1150 } 1151 } 1152 1153 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1154 final int sleepMs = getSleepForPage(page); 1155 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1156 new AsyncTaskCallback() { 1157 @Override 1158 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1159 try { 1160 try { 1161 Thread.sleep(sleepMs); 1162 } catch (Exception e) {} 1163 loadWidgetPreviewsInBackground(task, data); 1164 } finally { 1165 if (task.isCancelled()) { 1166 data.cleanup(true); 1167 } 1168 } 1169 } 1170 }, 1171 new AsyncTaskCallback() { 1172 @Override 1173 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1174 mRunningTasks.remove(task); 1175 if (task.isCancelled()) return; 1176 // do cleanup inside onSyncWidgetPageItems 1177 onSyncWidgetPageItems(data); 1178 } 1179 }); 1180 1181 // Ensure that the task is appropriately prioritized and runs in parallel 1182 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1183 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1184 t.setThreadPriority(getThreadPriorityForPage(page)); 1185 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1186 mRunningTasks.add(t); 1187 } 1188 1189 /* 1190 * Widgets PagedView implementation 1191 */ 1192 private void setupPage(PagedViewGridLayout layout) { 1193 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1194 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1195 1196 // Note: We force a measure here to get around the fact that when we do layout calculations 1197 // immediately after syncing, we don't have a proper width. 1198 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1199 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1200 layout.setMinimumWidth(getPageContentWidth()); 1201 layout.measure(widthSpec, heightSpec); 1202 } 1203 1204 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1205 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 1206 } 1207 1208 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1209 float scale) { 1210 if (bitmap != null) { 1211 Canvas c = new Canvas(bitmap); 1212 c.scale(scale, scale); 1213 Rect oldBounds = d.copyBounds(); 1214 d.setBounds(x, y, x + w, y + h); 1215 d.draw(c); 1216 d.setBounds(oldBounds); // Restore the bounds 1217 c.setBitmap(null); 1218 } 1219 } 1220 1221 private Bitmap getShortcutPreview(ResolveInfo info, int maxWidth, int maxHeight) { 1222 Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 1223 final Canvas c = mCachedShortcutPreviewCanvas.get(); 1224 if (tempBitmap == null || 1225 tempBitmap.getWidth() != maxWidth || 1226 tempBitmap.getHeight() != maxHeight) { 1227 tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1228 mCachedShortcutPreviewBitmap.set(tempBitmap); 1229 } else { 1230 c.setBitmap(tempBitmap); 1231 c.drawColor(0, PorterDuff.Mode.CLEAR); 1232 c.setBitmap(null); 1233 } 1234 // Render the icon 1235 Drawable icon = mIconCache.getFullResIcon(info); 1236 1237 int paddingTop = 1238 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 1239 int paddingLeft = 1240 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 1241 int paddingRight = 1242 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 1243 1244 int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 1245 1246 renderDrawableToBitmap( 1247 icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 1248 1249 Bitmap preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1250 c.setBitmap(preview); 1251 Paint p = mCachedShortcutPreviewPaint.get(); 1252 if (p == null) { 1253 p = new Paint(); 1254 ColorMatrix colorMatrix = new ColorMatrix(); 1255 colorMatrix.setSaturation(0); 1256 p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 1257 p.setAlpha((int) (255 * 0.06f)); 1258 //float density = 1f; 1259 //p.setMaskFilter(new BlurMaskFilter(15*density, BlurMaskFilter.Blur.NORMAL)); 1260 mCachedShortcutPreviewPaint.set(p); 1261 } 1262 c.drawBitmap(tempBitmap, 0, 0, p); 1263 c.setBitmap(null); 1264 1265 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 1266 1267 return preview; 1268 } 1269 1270 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, 1271 int iconId, int cellHSpan, int cellVSpan, int maxWidth, 1272 int maxHeight) { 1273 // Load the preview image if possible 1274 String packageName = provider.getPackageName(); 1275 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1276 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1277 1278 Drawable drawable = null; 1279 if (previewImage != 0) { 1280 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1281 if (drawable == null) { 1282 Log.w(TAG, "Can't load widget preview drawable 0x" + 1283 Integer.toHexString(previewImage) + " for provider: " + provider); 1284 } 1285 } 1286 1287 int bitmapWidth; 1288 int bitmapHeight; 1289 Bitmap defaultPreview = null; 1290 boolean widgetPreviewExists = (drawable != null); 1291 if (widgetPreviewExists) { 1292 bitmapWidth = drawable.getIntrinsicWidth(); 1293 bitmapHeight = drawable.getIntrinsicHeight(); 1294 } else { 1295 // Generate a preview image if we couldn't load one 1296 if (cellHSpan < 1) cellHSpan = 1; 1297 if (cellVSpan < 1) cellVSpan = 1; 1298 1299 BitmapDrawable previewDrawable = (BitmapDrawable) getResources() 1300 .getDrawable(R.drawable.widget_preview_tile); 1301 final int previewDrawableWidth = previewDrawable 1302 .getIntrinsicWidth(); 1303 final int previewDrawableHeight = previewDrawable 1304 .getIntrinsicHeight(); 1305 bitmapWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 1306 bitmapHeight = previewDrawableHeight * cellVSpan; 1307 1308 defaultPreview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1309 Config.ARGB_8888); 1310 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1311 c.setBitmap(defaultPreview); 1312 previewDrawable.setBounds(0, 0, bitmapWidth, bitmapHeight); 1313 previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 1314 Shader.TileMode.REPEAT); 1315 previewDrawable.draw(c); 1316 c.setBitmap(null); 1317 1318 // Draw the icon in the top left corner 1319 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1320 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1321 float iconScale = Math.min((float) smallestSide 1322 / (mAppIconSize + 2 * minOffset), 1f); 1323 1324 try { 1325 Drawable icon = null; 1326 int hoffset = 1327 (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 1328 int yoffset = 1329 (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 1330 if (iconId > 0) 1331 icon = mIconCache.getFullResIcon(packageName, iconId); 1332 if (icon != null) { 1333 renderDrawableToBitmap(icon, defaultPreview, hoffset, 1334 yoffset, (int) (mAppIconSize * iconScale), 1335 (int) (mAppIconSize * iconScale)); 1336 } 1337 } catch (Resources.NotFoundException e) { 1338 } 1339 } 1340 1341 // Scale to fit width only - let the widget preview be clipped in the 1342 // vertical dimension 1343 float scale = 1f; 1344 if (bitmapWidth > maxWidth) { 1345 scale = maxWidth / (float) bitmapWidth; 1346 } 1347 if (scale != 1f) { 1348 bitmapWidth = (int) (scale * bitmapWidth); 1349 bitmapHeight = (int) (scale * bitmapHeight); 1350 } 1351 1352 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1353 Config.ARGB_8888); 1354 1355 // Draw the scaled preview into the final bitmap 1356 if (widgetPreviewExists) { 1357 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, 1358 bitmapHeight); 1359 } else { 1360 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1361 final Rect src = mCachedAppWidgetPreviewSrcRect.get(); 1362 final Rect dest = mCachedAppWidgetPreviewDestRect.get(); 1363 c.setBitmap(preview); 1364 src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); 1365 dest.set(0, 0, preview.getWidth(), preview.getHeight()); 1366 1367 Paint p = mCachedAppWidgetPreviewPaint.get(); 1368 if (p == null) { 1369 p = new Paint(); 1370 p.setFilterBitmap(true); 1371 mCachedAppWidgetPreviewPaint.set(p); 1372 } 1373 c.drawBitmap(defaultPreview, src, dest, p); 1374 c.setBitmap(null); 1375 } 1376 return preview; 1377 } 1378 1379 public void syncWidgetPageItems(final int page, final boolean immediate) { 1380 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1381 1382 // Calculate the dimensions of each cell we are giving to each widget 1383 final ArrayList<Object> items = new ArrayList<Object>(); 1384 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1385 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1386 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1387 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1388 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1389 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1390 1391 // Prepare the set of widgets to load previews for in the background 1392 int offset = (page - mNumAppsPages) * numItemsPerPage; 1393 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1394 items.add(mWidgets.get(i)); 1395 } 1396 1397 // Prepopulate the pages with the other widget info, and fill in the previews later 1398 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1399 layout.setColumnCount(layout.getCellCountX()); 1400 for (int i = 0; i < items.size(); ++i) { 1401 Object rawInfo = items.get(i); 1402 PendingAddItemInfo createItemInfo = null; 1403 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1404 R.layout.apps_customize_widget, layout, false); 1405 if (rawInfo instanceof AppWidgetProviderInfo) { 1406 // Fill in the widget information 1407 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1408 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1409 1410 // Determine the widget spans and min resize spans. 1411 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1412 createItemInfo.spanX = spanXY[0]; 1413 createItemInfo.spanY = spanXY[1]; 1414 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1415 createItemInfo.minSpanX = minSpanXY[0]; 1416 createItemInfo.minSpanY = minSpanXY[1]; 1417 1418 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1419 widget.setTag(createItemInfo); 1420 widget.setShortPressListener(this); 1421 } else if (rawInfo instanceof ResolveInfo) { 1422 // Fill in the shortcuts information 1423 ResolveInfo info = (ResolveInfo) rawInfo; 1424 createItemInfo = new PendingAddShortcutInfo(info.activityInfo); 1425 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1426 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1427 info.activityInfo.name); 1428 widget.applyFromResolveInfo(mPackageManager, info); 1429 widget.setTag(createItemInfo); 1430 } 1431 widget.setOnClickListener(this); 1432 widget.setOnLongClickListener(this); 1433 widget.setOnTouchListener(this); 1434 widget.setOnKeyListener(this); 1435 1436 // Layout each widget 1437 int ix = i % mWidgetCountX; 1438 int iy = i / mWidgetCountX; 1439 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1440 GridLayout.spec(iy, GridLayout.LEFT), 1441 GridLayout.spec(ix, GridLayout.TOP)); 1442 lp.width = cellWidth; 1443 lp.height = cellHeight; 1444 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1445 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1446 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1447 layout.addView(widget, lp); 1448 } 1449 1450 // wait until a call on onLayout to start loading, because 1451 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1452 // TODO: can we do a measure/layout immediately? 1453 layout.setOnLayoutListener(new Runnable() { 1454 public void run() { 1455 // Load the widget previews 1456 int maxPreviewWidth = cellWidth; 1457 int maxPreviewHeight = cellHeight; 1458 if (layout.getChildCount() > 0) { 1459 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1460 int[] maxSize = w.getPreviewSize(); 1461 maxPreviewWidth = maxSize[0]; 1462 maxPreviewHeight = maxSize[1]; 1463 } 1464 if (immediate) { 1465 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1466 maxPreviewWidth, maxPreviewHeight, null, null); 1467 loadWidgetPreviewsInBackground(null, data); 1468 onSyncWidgetPageItems(data); 1469 } else { 1470 if (mInTransition) { 1471 mDeferredPrepareLoadWidgetPreviewsTasks.add(this); 1472 } else { 1473 prepareLoadWidgetPreviewsTask(page, items, 1474 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1475 } 1476 } 1477 } 1478 }); 1479 } 1480 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1481 AsyncTaskPageData data) { 1482 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1483 // previews synchronously 1484 if (task != null) { 1485 // Ensure that this task starts running at the correct priority 1486 task.syncThreadPriority(); 1487 } 1488 1489 // Load each of the widget/shortcut previews 1490 ArrayList<Object> items = data.items; 1491 ArrayList<Bitmap> images = data.generatedImages; 1492 int count = items.size(); 1493 for (int i = 0; i < count; ++i) { 1494 if (task != null) { 1495 // Ensure we haven't been cancelled yet 1496 if (task.isCancelled()) break; 1497 // Before work on each item, ensure that this task is running at the correct 1498 // priority 1499 task.syncThreadPriority(); 1500 } 1501 1502 Object rawInfo = items.get(i); 1503 if (rawInfo instanceof AppWidgetProviderInfo) { 1504 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1505 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1506 1507 int maxWidth = Math.min(data.maxImageWidth, 1508 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1509 int maxHeight = Math.min(data.maxImageHeight, 1510 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1511 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1512 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1513 images.add(b); 1514 } else if (rawInfo instanceof ResolveInfo) { 1515 // Fill in the shortcuts information 1516 ResolveInfo info = (ResolveInfo) rawInfo; 1517 images.add(getShortcutPreview(info, data.maxImageWidth, data.maxImageHeight)); 1518 } 1519 } 1520 } 1521 1522 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1523 if (mInTransition) { 1524 mDeferredSyncWidgetPageItems.add(data); 1525 return; 1526 } 1527 try { 1528 int page = data.page; 1529 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1530 1531 ArrayList<Object> items = data.items; 1532 int count = items.size(); 1533 for (int i = 0; i < count; ++i) { 1534 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1535 if (widget != null) { 1536 Bitmap preview = data.generatedImages.get(i); 1537 widget.applyPreview(new FastBitmapDrawable(preview), i); 1538 } 1539 } 1540 1541 layout.createHardwareLayer(); 1542 invalidate(); 1543 1544 // Update all thread priorities 1545 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1546 while (iter.hasNext()) { 1547 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1548 int pageIndex = task.page; 1549 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1550 } 1551 } finally { 1552 data.cleanup(false); 1553 } 1554 } 1555 1556 @Override 1557 public void syncPages() { 1558 removeAllViews(); 1559 cancelAllTasks(); 1560 1561 Context context = getContext(); 1562 for (int j = 0; j < mNumWidgetPages; ++j) { 1563 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1564 mWidgetCountY); 1565 setupPage(layout); 1566 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1567 LayoutParams.MATCH_PARENT)); 1568 } 1569 1570 for (int i = 0; i < mNumAppsPages; ++i) { 1571 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1572 setupPage(layout); 1573 addView(layout); 1574 } 1575 } 1576 1577 @Override 1578 public void syncPageItems(int page, boolean immediate) { 1579 if (page < mNumAppsPages) { 1580 syncAppsPageItems(page, immediate); 1581 } else { 1582 syncWidgetPageItems(page, immediate); 1583 } 1584 } 1585 1586 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1587 // it is in the z-order. This is important to insure touch events are handled correctly. 1588 View getPageAt(int index) { 1589 return getChildAt(indexToPage(index)); 1590 } 1591 1592 @Override 1593 protected int indexToPage(int index) { 1594 return getChildCount() - index - 1; 1595 } 1596 1597 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1598 @Override 1599 protected void screenScrolled(int screenCenter) { 1600 super.screenScrolled(screenCenter); 1601 1602 for (int i = 0; i < getChildCount(); i++) { 1603 View v = getPageAt(i); 1604 if (v != null) { 1605 float scrollProgress = getScrollProgress(screenCenter, v, i); 1606 1607 float interpolatedProgress = 1608 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1609 float scale = (1 - interpolatedProgress) + 1610 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1611 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1612 1613 float alpha; 1614 1615 if (scrollProgress < 0) { 1616 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1617 1 - Math.abs(scrollProgress)) : 1.0f; 1618 } else { 1619 // On large screens we need to fade the page as it nears its leftmost position 1620 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1621 } 1622 1623 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1624 int pageWidth = v.getMeasuredWidth(); 1625 int pageHeight = v.getMeasuredHeight(); 1626 1627 if (PERFORM_OVERSCROLL_ROTATION) { 1628 if (i == 0 && scrollProgress < 0) { 1629 // Overscroll to the left 1630 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1631 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1632 scale = 1.0f; 1633 alpha = 1.0f; 1634 // On the first page, we don't want the page to have any lateral motion 1635 translationX = 0; 1636 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1637 // Overscroll to the right 1638 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1639 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1640 scale = 1.0f; 1641 alpha = 1.0f; 1642 // On the last page, we don't want the page to have any lateral motion. 1643 translationX = 0; 1644 } else { 1645 v.setPivotY(pageHeight / 2.0f); 1646 v.setPivotX(pageWidth / 2.0f); 1647 v.setRotationY(0f); 1648 } 1649 } 1650 1651 v.setTranslationX(translationX); 1652 v.setScaleX(scale); 1653 v.setScaleY(scale); 1654 v.setAlpha(alpha); 1655 1656 // If the view has 0 alpha, we set it to be invisible so as to prevent 1657 // it from accepting touches 1658 if (alpha == 0) { 1659 v.setVisibility(INVISIBLE); 1660 } else if (v.getVisibility() != VISIBLE) { 1661 v.setVisibility(VISIBLE); 1662 } 1663 } 1664 } 1665 } 1666 1667 protected void overScroll(float amount) { 1668 acceleratedOverScroll(amount); 1669 } 1670 1671 /** 1672 * Used by the parent to get the content width to set the tab bar to 1673 * @return 1674 */ 1675 public int getPageContentWidth() { 1676 return mContentWidth; 1677 } 1678 1679 @Override 1680 protected void onPageEndMoving() { 1681 super.onPageEndMoving(); 1682 mForceDrawAllChildrenNextFrame = true; 1683 // We reset the save index when we change pages so that it will be recalculated on next 1684 // rotation 1685 mSaveInstanceStateItemIndex = -1; 1686 } 1687 1688 /* 1689 * AllAppsView implementation 1690 */ 1691 public void setup(Launcher launcher, DragController dragController) { 1692 mLauncher = launcher; 1693 mDragController = dragController; 1694 } 1695 1696 /** 1697 * We should call thise method whenever the core data changes (mApps, mWidgets) so that we can 1698 * appropriately determine when to invalidate the PagedView page data. In cases where the data 1699 * has yet to be set, we can requestLayout() and wait for onDataReady() to be called in the 1700 * next onMeasure() pass, which will trigger an invalidatePageData() itself. 1701 */ 1702 private void invalidateOnDataChange() { 1703 if (!isDataReady()) { 1704 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1705 // request a layout to trigger the page data when ready. 1706 requestLayout(); 1707 } else { 1708 cancelAllTasks(); 1709 invalidatePageData(); 1710 } 1711 } 1712 1713 public void setApps(ArrayList<ApplicationInfo> list) { 1714 mApps = list; 1715 Collections.sort(mApps, LauncherModel.getAppNameComparator()); 1716 updatePageCounts(); 1717 invalidateOnDataChange(); 1718 } 1719 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1720 // We add it in place, in alphabetical order 1721 int count = list.size(); 1722 for (int i = 0; i < count; ++i) { 1723 ApplicationInfo info = list.get(i); 1724 int index = Collections.binarySearch(mApps, info, LauncherModel.getAppNameComparator()); 1725 if (index < 0) { 1726 mApps.add(-(index + 1), info); 1727 } 1728 } 1729 } 1730 public void addApps(ArrayList<ApplicationInfo> list) { 1731 addAppsWithoutInvalidate(list); 1732 updatePageCounts(); 1733 invalidateOnDataChange(); 1734 } 1735 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1736 ComponentName removeComponent = item.intent.getComponent(); 1737 int length = list.size(); 1738 for (int i = 0; i < length; ++i) { 1739 ApplicationInfo info = list.get(i); 1740 if (info.intent.getComponent().equals(removeComponent)) { 1741 return i; 1742 } 1743 } 1744 return -1; 1745 } 1746 private int findAppByPackage(List<ApplicationInfo> list, String packageName) { 1747 int length = list.size(); 1748 for (int i = 0; i < length; ++i) { 1749 ApplicationInfo info = list.get(i); 1750 if (ItemInfo.getPackageName(info.intent).equals(packageName)) { 1751 return i; 1752 } 1753 } 1754 return -1; 1755 } 1756 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1757 // loop through all the apps and remove apps that have the same component 1758 int length = list.size(); 1759 for (int i = 0; i < length; ++i) { 1760 ApplicationInfo info = list.get(i); 1761 int removeIndex = findAppByComponent(mApps, info); 1762 if (removeIndex > -1) { 1763 mApps.remove(removeIndex); 1764 } 1765 } 1766 } 1767 private void removeAppsWithPackageNameWithoutInvalidate(ArrayList<String> packageNames) { 1768 // loop through all the package names and remove apps that have the same package name 1769 for (String pn : packageNames) { 1770 int removeIndex = findAppByPackage(mApps, pn); 1771 while (removeIndex > -1) { 1772 mApps.remove(removeIndex); 1773 removeIndex = findAppByPackage(mApps, pn); 1774 } 1775 } 1776 } 1777 public void removeApps(ArrayList<String> packageNames) { 1778 removeAppsWithPackageNameWithoutInvalidate(packageNames); 1779 updatePageCounts(); 1780 invalidateOnDataChange(); 1781 } 1782 public void updateApps(ArrayList<ApplicationInfo> list) { 1783 // We remove and re-add the updated applications list because it's properties may have 1784 // changed (ie. the title), and this will ensure that the items will be in their proper 1785 // place in the list. 1786 removeAppsWithoutInvalidate(list); 1787 addAppsWithoutInvalidate(list); 1788 updatePageCounts(); 1789 invalidateOnDataChange(); 1790 } 1791 1792 public void reset() { 1793 // If we have reset, then we should not continue to restore the previous state 1794 mSaveInstanceStateItemIndex = -1; 1795 1796 AppsCustomizeTabHost tabHost = getTabHost(); 1797 String tag = tabHost.getCurrentTabTag(); 1798 if (tag != null) { 1799 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1800 tabHost.setCurrentTabFromContent(ContentType.Applications); 1801 } 1802 } 1803 1804 if (mCurrentPage != 0) { 1805 invalidatePageData(0); 1806 } 1807 } 1808 1809 private AppsCustomizeTabHost getTabHost() { 1810 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1811 } 1812 1813 public void dumpState() { 1814 // TODO: Dump information related to current list of Applications, Widgets, etc. 1815 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1816 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1817 } 1818 1819 private void dumpAppWidgetProviderInfoList(String tag, String label, 1820 ArrayList<Object> list) { 1821 Log.d(tag, label + " size=" + list.size()); 1822 for (Object i: list) { 1823 if (i instanceof AppWidgetProviderInfo) { 1824 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1825 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1826 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1827 + " initialLayout=" + info.initialLayout 1828 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1829 } else if (i instanceof ResolveInfo) { 1830 ResolveInfo info = (ResolveInfo) i; 1831 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1832 + info.icon); 1833 } 1834 } 1835 } 1836 1837 public void surrender() { 1838 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1839 // should stop this now. 1840 1841 // Stop all background tasks 1842 cancelAllTasks(); 1843 } 1844 1845 @Override 1846 public void iconPressed(PagedViewIcon icon) { 1847 // Reset the previously pressed icon and store a reference to the pressed icon so that 1848 // we can reset it on return to Launcher (in Launcher.onResume()) 1849 if (mPressedIcon != null) { 1850 mPressedIcon.resetDrawableState(); 1851 } 1852 mPressedIcon = icon; 1853 } 1854 1855 public void resetDrawableState() { 1856 if (mPressedIcon != null) { 1857 mPressedIcon.resetDrawableState(); 1858 mPressedIcon = null; 1859 } 1860 } 1861 1862 /* 1863 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1864 * widget previews in the background with the AsyncTasks. 1865 */ 1866 final static int sLookBehindPageCount = 2; 1867 final static int sLookAheadPageCount = 2; 1868 protected int getAssociatedLowerPageBound(int page) { 1869 final int count = getChildCount(); 1870 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1871 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1872 return windowMinIndex; 1873 } 1874 protected int getAssociatedUpperPageBound(int page) { 1875 final int count = getChildCount(); 1876 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1877 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1878 count - 1); 1879 return windowMaxIndex; 1880 } 1881 1882 @Override 1883 protected String getCurrentPageDescription() { 1884 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1885 int stringId = R.string.default_scroll_format; 1886 int count = 0; 1887 1888 if (page < mNumAppsPages) { 1889 stringId = R.string.apps_customize_apps_scroll_format; 1890 count = mNumAppsPages; 1891 } else { 1892 page -= mNumAppsPages; 1893 stringId = R.string.apps_customize_widgets_scroll_format; 1894 count = mNumWidgetPages; 1895 } 1896 1897 return String.format(getContext().getString(stringId), page + 1, count); 1898 } 1899} 1900