AppsCustomizePagedView.java revision 74f053757701bcb897fb2ec11f8e2aa2d11491e6
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.Canvas; 34import android.graphics.Point; 35import android.graphics.Rect; 36import android.graphics.drawable.Drawable; 37import android.os.AsyncTask; 38import android.os.Build; 39import android.os.Bundle; 40import android.os.Process; 41import android.util.AttributeSet; 42import android.util.Log; 43import android.view.Gravity; 44import android.view.KeyEvent; 45import android.view.LayoutInflater; 46import android.view.View; 47import android.view.ViewGroup; 48import android.view.animation.AccelerateInterpolator; 49import android.view.animation.DecelerateInterpolator; 50import android.widget.GridLayout; 51import android.widget.ImageView; 52import android.widget.Toast; 53 54import com.android.launcher.R; 55import com.android.launcher2.DropTarget.DragObject; 56 57import java.util.ArrayList; 58import java.util.Collections; 59import java.util.Iterator; 60import java.util.List; 61 62/** 63 * A simple callback interface which also provides the results of the task. 64 */ 65interface AsyncTaskCallback { 66 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 67} 68 69/** 70 * The data needed to perform either of the custom AsyncTasks. 71 */ 72class AsyncTaskPageData { 73 enum Type { 74 LoadWidgetPreviewData 75 } 76 77 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 78 AsyncTaskCallback postR, WidgetPreviewLoader w) { 79 page = p; 80 items = l; 81 generatedImages = new ArrayList<Bitmap>(); 82 maxImageWidth = cw; 83 maxImageHeight = ch; 84 doInBackgroundCallback = bgR; 85 postExecuteCallback = postR; 86 widgetPreviewLoader = w; 87 } 88 void cleanup(boolean cancelled) { 89 // Clean up any references to source/generated bitmaps 90 if (generatedImages != null) { 91 if (cancelled) { 92 for (int i = 0; i < generatedImages.size(); i++) { 93 widgetPreviewLoader.recycleBitmap(items.get(i), generatedImages.get(i)); 94 } 95 } 96 generatedImages.clear(); 97 } 98 } 99 int page; 100 ArrayList<Object> items; 101 ArrayList<Bitmap> sourceImages; 102 ArrayList<Bitmap> generatedImages; 103 int maxImageWidth; 104 int maxImageHeight; 105 AsyncTaskCallback doInBackgroundCallback; 106 AsyncTaskCallback postExecuteCallback; 107 WidgetPreviewLoader widgetPreviewLoader; 108} 109 110/** 111 * A generic template for an async task used in AppsCustomize. 112 */ 113class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 114 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 115 page = p; 116 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 117 dataType = ty; 118 } 119 @Override 120 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 121 if (params.length != 1) return null; 122 // Load each of the widget previews in the background 123 params[0].doInBackgroundCallback.run(this, params[0]); 124 return params[0]; 125 } 126 @Override 127 protected void onPostExecute(AsyncTaskPageData result) { 128 // All the widget previews are loaded, so we can just callback to inflate the page 129 result.postExecuteCallback.run(this, result); 130 } 131 132 void setThreadPriority(int p) { 133 threadPriority = p; 134 } 135 void syncThreadPriority() { 136 Process.setThreadPriority(threadPriority); 137 } 138 139 // The page that this async task is associated with 140 AsyncTaskPageData.Type dataType; 141 int page; 142 int threadPriority; 143} 144 145/** 146 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 147 */ 148public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 149 View.OnClickListener, View.OnKeyListener, DragSource, 150 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener, 151 LauncherTransitionable { 152 static final String TAG = "AppsCustomizePagedView"; 153 154 /** 155 * The different content types that this paged view can show. 156 */ 157 public enum ContentType { 158 Applications, 159 Widgets 160 } 161 162 // Refs 163 private Launcher mLauncher; 164 private DragController mDragController; 165 private final LayoutInflater mLayoutInflater; 166 private final PackageManager mPackageManager; 167 168 // Save and Restore 169 private int mSaveInstanceStateItemIndex = -1; 170 private PagedViewIcon mPressedIcon; 171 172 // Content 173 private ArrayList<ApplicationInfo> mApps; 174 private ArrayList<Object> mWidgets; 175 176 // Cling 177 private boolean mHasShownAllAppsCling; 178 private int mClingFocusedX; 179 private int mClingFocusedY; 180 181 // Caching 182 private Canvas mCanvas; 183 private IconCache mIconCache; 184 185 // Dimens 186 private int mContentWidth; 187 private int mMaxAppCellCountX, mMaxAppCellCountY; 188 private int mWidgetCountX, mWidgetCountY; 189 private int mWidgetWidthGap, mWidgetHeightGap; 190 private PagedViewCellLayout mWidgetSpacingLayout; 191 private int mNumAppsPages; 192 private int mNumWidgetPages; 193 194 // Relating to the scroll and overscroll effects 195 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 196 private static float CAMERA_DISTANCE = 6500; 197 private static float TRANSITION_SCALE_FACTOR = 0.74f; 198 private static float TRANSITION_PIVOT = 0.65f; 199 private static float TRANSITION_MAX_ROTATION = 22; 200 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 201 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 202 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 203 204 // Previews & outlines 205 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 206 private static final int sPageSleepDelay = 200; 207 208 private Runnable mInflateWidgetRunnable = null; 209 private Runnable mBindWidgetRunnable = null; 210 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 211 static final int WIDGET_PRELOAD_PENDING = 0; 212 static final int WIDGET_BOUND = 1; 213 static final int WIDGET_INFLATED = 2; 214 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 215 int mWidgetLoadingId = -1; 216 PendingAddWidgetInfo mCreateWidgetInfo = null; 217 private boolean mDraggingWidget = false; 218 219 private Toast mWidgetInstructionToast; 220 221 // Deferral of loading widget previews during launcher transitions 222 private boolean mInTransition; 223 private ArrayList<AsyncTaskPageData> mDeferredSyncWidgetPageItems = 224 new ArrayList<AsyncTaskPageData>(); 225 private ArrayList<Runnable> mDeferredPrepareLoadWidgetPreviewsTasks = 226 new ArrayList<Runnable>(); 227 228 private Rect mTmpRect = new Rect(); 229 230 // Used for drawing shortcut previews 231 BitmapCache mCachedShortcutPreviewBitmap = new BitmapCache(); 232 PaintCache mCachedShortcutPreviewPaint = new PaintCache(); 233 CanvasCache mCachedShortcutPreviewCanvas = new CanvasCache(); 234 235 // Used for drawing widget previews 236 CanvasCache mCachedAppWidgetPreviewCanvas = new CanvasCache(); 237 RectCache mCachedAppWidgetPreviewSrcRect = new RectCache(); 238 RectCache mCachedAppWidgetPreviewDestRect = new RectCache(); 239 PaintCache mCachedAppWidgetPreviewPaint = new PaintCache(); 240 241 WidgetPreviewLoader mWidgetPreviewLoader; 242 243 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 244 super(context, attrs); 245 mLayoutInflater = LayoutInflater.from(context); 246 mPackageManager = context.getPackageManager(); 247 mApps = new ArrayList<ApplicationInfo>(); 248 mWidgets = new ArrayList<Object>(); 249 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 250 mCanvas = new Canvas(); 251 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 252 253 // Save the default widget preview background 254 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 255 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 256 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 257 mWidgetWidthGap = 258 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 259 mWidgetHeightGap = 260 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 261 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 262 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 263 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 264 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 265 a.recycle(); 266 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 267 268 // The padding on the non-matched dimension for the default widget preview icons 269 // (top + bottom) 270 mFadeInAdjacentScreens = false; 271 272 // Unless otherwise specified this view is important for accessibility. 273 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 274 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 275 } 276 } 277 278 @Override 279 protected void init() { 280 super.init(); 281 mCenterPagesVertically = false; 282 283 Context context = getContext(); 284 Resources r = context.getResources(); 285 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 286 } 287 288 /** Returns the item index of the center item on this page so that we can restore to this 289 * item index when we rotate. */ 290 private int getMiddleComponentIndexOnCurrentPage() { 291 int i = -1; 292 if (getPageCount() > 0) { 293 int currentPage = getCurrentPage(); 294 if (currentPage < mNumAppsPages) { 295 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 296 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 297 int numItemsPerPage = mCellCountX * mCellCountY; 298 int childCount = childrenLayout.getChildCount(); 299 if (childCount > 0) { 300 i = (currentPage * numItemsPerPage) + (childCount / 2); 301 } 302 } else { 303 int numApps = mApps.size(); 304 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 305 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 306 int childCount = layout.getChildCount(); 307 if (childCount > 0) { 308 i = numApps + 309 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 310 } 311 } 312 } 313 return i; 314 } 315 316 /** Get the index of the item to restore to if we need to restore the current page. */ 317 int getSaveInstanceStateIndex() { 318 if (mSaveInstanceStateItemIndex == -1) { 319 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 320 } 321 return mSaveInstanceStateItemIndex; 322 } 323 324 /** Returns the page in the current orientation which is expected to contain the specified 325 * item index. */ 326 int getPageForComponent(int index) { 327 if (index < 0) return 0; 328 329 if (index < mApps.size()) { 330 int numItemsPerPage = mCellCountX * mCellCountY; 331 return (index / numItemsPerPage); 332 } else { 333 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 334 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 335 } 336 } 337 338 /** Restores the page for an item at the specified index */ 339 void restorePageForIndex(int index) { 340 if (index < 0) return; 341 mSaveInstanceStateItemIndex = index; 342 } 343 344 private void updatePageCounts() { 345 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 346 (float) (mWidgetCountX * mWidgetCountY)); 347 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 348 } 349 350 protected void onDataReady(int width, int height) { 351 if (mWidgetPreviewLoader == null) { 352 mWidgetPreviewLoader = new WidgetPreviewLoader(mLauncher); 353 } 354 355 // Note that we transpose the counts in portrait so that we get a similar layout 356 boolean isLandscape = getResources().getConfiguration().orientation == 357 Configuration.ORIENTATION_LANDSCAPE; 358 int maxCellCountX = Integer.MAX_VALUE; 359 int maxCellCountY = Integer.MAX_VALUE; 360 if (LauncherApplication.isScreenLarge()) { 361 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 362 LauncherModel.getCellCountY()); 363 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 364 LauncherModel.getCellCountX()); 365 } 366 if (mMaxAppCellCountX > -1) { 367 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 368 } 369 // Temp hack for now: only use the max cell count Y for widget layout 370 int maxWidgetCellCountY = maxCellCountY; 371 if (mMaxAppCellCountY > -1) { 372 maxWidgetCellCountY = Math.min(maxWidgetCellCountY, mMaxAppCellCountY); 373 } 374 375 // Now that the data is ready, we can calculate the content width, the number of cells to 376 // use for each page 377 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 378 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 379 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 380 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 381 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 382 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 383 updatePageCounts(); 384 385 // Force a measure to update recalculate the gaps 386 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 387 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 388 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxWidgetCellCountY); 389 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 390 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 391 392 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 393 final boolean hostIsTransitioning = host.isTransitioning(); 394 395 // Restore the page 396 int page = getPageForComponent(mSaveInstanceStateItemIndex); 397 invalidatePageData(Math.max(0, page), hostIsTransitioning); 398 399 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 400 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 401 // returned while animating) 402 if (!hostIsTransitioning) { 403 post(new Runnable() { 404 @Override 405 public void run() { 406 showAllAppsCling(); 407 } 408 }); 409 } 410 } 411 412 void showAllAppsCling() { 413 if (!mHasShownAllAppsCling && isDataReady()) { 414 mHasShownAllAppsCling = true; 415 // Calculate the position for the cling punch through 416 int[] offset = new int[2]; 417 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 418 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 419 // PagedViews are centered horizontally but top aligned 420 // Note we have to shift the items up now that Launcher sits under the status bar 421 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 422 offset[0]; 423 pos[1] += offset[1] - mLauncher.getDragLayer().getPaddingTop(); 424 mLauncher.showFirstRunAllAppsCling(pos); 425 } 426 } 427 428 @Override 429 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 430 int width = MeasureSpec.getSize(widthMeasureSpec); 431 int height = MeasureSpec.getSize(heightMeasureSpec); 432 if (!isDataReady()) { 433 if (!mApps.isEmpty() && !mWidgets.isEmpty()) { 434 setDataIsReady(); 435 setMeasuredDimension(width, height); 436 onDataReady(width, height); 437 } 438 } 439 440 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 441 } 442 443 public void onPackagesUpdated() { 444 // Get the list of widgets and shortcuts 445 mWidgets.clear(); 446 List<AppWidgetProviderInfo> widgets = 447 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 448 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 449 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 450 for (AppWidgetProviderInfo widget : widgets) { 451 widget.label = widget.label.trim(); 452 if (widget.minWidth > 0 && widget.minHeight > 0) { 453 // Ensure that all widgets we show can be added on a workspace of this size 454 int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget); 455 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget); 456 int minSpanX = Math.min(spanXY[0], minSpanXY[0]); 457 int minSpanY = Math.min(spanXY[1], minSpanXY[1]); 458 if (minSpanX <= LauncherModel.getCellCountX() && 459 minSpanY <= LauncherModel.getCellCountY()) { 460 mWidgets.add(widget); 461 } else { 462 Log.e(TAG, "Widget " + widget.provider + " can not fit on this device (" + 463 widget.minWidth + ", " + widget.minHeight + ")"); 464 } 465 } else { 466 Log.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" + 467 widget.minWidth + ", " + widget.minHeight + ")"); 468 } 469 } 470 mWidgets.addAll(shortcuts); 471 Collections.sort(mWidgets, 472 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 473 updatePageCounts(); 474 invalidateOnDataChange(); 475 } 476 477 @Override 478 public void onClick(View v) { 479 // When we have exited all apps or are in transition, disregard clicks 480 if (!mLauncher.isAllAppsVisible() || 481 mLauncher.getWorkspace().isSwitchingState()) return; 482 483 if (v instanceof PagedViewIcon) { 484 // Animate some feedback to the click 485 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 486 487 // Lock the drawable state to pressed until we return to Launcher 488 if (mPressedIcon != null) { 489 mPressedIcon.lockDrawableState(); 490 } 491 492 // NOTE: We want all transitions from launcher to act as if the wallpaper were enabled 493 // to be consistent. So re-enable the flag here, and we will re-disable it as necessary 494 // when Launcher resumes and we are still in AllApps. 495 mLauncher.updateWallpaperVisibility(true); 496 mLauncher.startActivitySafely(v, appInfo.intent, appInfo); 497 498 } else if (v instanceof PagedViewWidget) { 499 // Let the user know that they have to long press to add a widget 500 if (mWidgetInstructionToast != null) { 501 mWidgetInstructionToast.cancel(); 502 } 503 mWidgetInstructionToast = Toast.makeText(getContext(),R.string.long_press_widget_to_add, 504 Toast.LENGTH_SHORT); 505 mWidgetInstructionToast.show(); 506 507 // Create a little animation to show that the widget can move 508 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 509 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 510 AnimatorSet bounce = LauncherAnimUtils.createAnimatorSet(); 511 ValueAnimator tyuAnim = LauncherAnimUtils.ofFloat(p, "translationY", offsetY); 512 tyuAnim.setDuration(125); 513 ValueAnimator tydAnim = LauncherAnimUtils.ofFloat(p, "translationY", 0f); 514 tydAnim.setDuration(100); 515 bounce.play(tyuAnim).before(tydAnim); 516 bounce.setInterpolator(new AccelerateInterpolator()); 517 bounce.start(); 518 } 519 } 520 521 public boolean onKey(View v, int keyCode, KeyEvent event) { 522 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 523 } 524 525 /* 526 * PagedViewWithDraggableItems implementation 527 */ 528 @Override 529 protected void determineDraggingStart(android.view.MotionEvent ev) { 530 // Disable dragging by pulling an app down for now. 531 } 532 533 private void beginDraggingApplication(View v) { 534 mLauncher.getWorkspace().onDragStartedWithItem(v); 535 mLauncher.getWorkspace().beginDragShared(v, this); 536 } 537 538 Bundle getDefaultOptionsForWidget(Launcher launcher, PendingAddWidgetInfo info) { 539 Bundle options = null; 540 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { 541 AppWidgetResizeFrame.getWidgetSizeRanges(mLauncher, info.spanX, info.spanY, mTmpRect); 542 Rect padding = AppWidgetHostView.getDefaultPaddingForWidget(mLauncher, 543 info.componentName, null); 544 545 float density = getResources().getDisplayMetrics().density; 546 int xPaddingDips = (int) ((padding.left + padding.right) / density); 547 int yPaddingDips = (int) ((padding.top + padding.bottom) / density); 548 549 options = new Bundle(); 550 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH, 551 mTmpRect.left - xPaddingDips); 552 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT, 553 mTmpRect.top - yPaddingDips); 554 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH, 555 mTmpRect.right - xPaddingDips); 556 options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT, 557 mTmpRect.bottom - yPaddingDips); 558 } 559 return options; 560 } 561 562 private void preloadWidget(final PendingAddWidgetInfo info) { 563 final AppWidgetProviderInfo pInfo = info.info; 564 final Bundle options = getDefaultOptionsForWidget(mLauncher, info); 565 566 if (pInfo.configure != null) { 567 info.bindOptions = options; 568 return; 569 } 570 571 mWidgetCleanupState = WIDGET_PRELOAD_PENDING; 572 mBindWidgetRunnable = new Runnable() { 573 @Override 574 public void run() { 575 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 576 // Options will be null for platforms with JB or lower, so this serves as an 577 // SDK level check. 578 if (options == null) { 579 if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed( 580 mWidgetLoadingId, info.componentName)) { 581 mWidgetCleanupState = WIDGET_BOUND; 582 } 583 } else { 584 if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed( 585 mWidgetLoadingId, info.componentName, options)) { 586 mWidgetCleanupState = WIDGET_BOUND; 587 } 588 } 589 } 590 }; 591 post(mBindWidgetRunnable); 592 593 mInflateWidgetRunnable = new Runnable() { 594 @Override 595 public void run() { 596 if (mWidgetCleanupState != WIDGET_BOUND) { 597 return; 598 } 599 AppWidgetHostView hostView = mLauncher. 600 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 601 info.boundWidget = hostView; 602 mWidgetCleanupState = WIDGET_INFLATED; 603 hostView.setVisibility(INVISIBLE); 604 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 605 info.spanY, info, false); 606 607 // We want the first widget layout to be the correct size. This will be important 608 // for width size reporting to the AppWidgetManager. 609 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 610 unScaledSize[1]); 611 lp.x = lp.y = 0; 612 lp.customPosition = true; 613 hostView.setLayoutParams(lp); 614 mLauncher.getDragLayer().addView(hostView); 615 } 616 }; 617 post(mInflateWidgetRunnable); 618 } 619 620 @Override 621 public void onShortPress(View v) { 622 // We are anticipating a long press, and we use this time to load bind and instantiate 623 // the widget. This will need to be cleaned up if it turns out no long press occurs. 624 if (mCreateWidgetInfo != null) { 625 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 626 cleanupWidgetPreloading(false); 627 } 628 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 629 preloadWidget(mCreateWidgetInfo); 630 } 631 632 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 633 if (!widgetWasAdded) { 634 // If the widget was not added, we may need to do further cleanup. 635 PendingAddWidgetInfo info = mCreateWidgetInfo; 636 mCreateWidgetInfo = null; 637 638 if (mWidgetCleanupState == WIDGET_PRELOAD_PENDING) { 639 // We never did any preloading, so just remove pending callbacks to do so 640 removeCallbacks(mBindWidgetRunnable); 641 removeCallbacks(mInflateWidgetRunnable); 642 } else if (mWidgetCleanupState == WIDGET_BOUND) { 643 // Delete the widget id which was allocated 644 if (mWidgetLoadingId != -1) { 645 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 646 } 647 648 // We never got around to inflating the widget, so remove the callback to do so. 649 removeCallbacks(mInflateWidgetRunnable); 650 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 651 // Delete the widget id which was allocated 652 if (mWidgetLoadingId != -1) { 653 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 654 } 655 656 // The widget was inflated and added to the DragLayer -- remove it. 657 AppWidgetHostView widget = info.boundWidget; 658 mLauncher.getDragLayer().removeView(widget); 659 } 660 } 661 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 662 mWidgetLoadingId = -1; 663 mCreateWidgetInfo = null; 664 PagedViewWidget.resetShortPressTarget(); 665 } 666 667 @Override 668 public void cleanUpShortPress(View v) { 669 if (!mDraggingWidget) { 670 cleanupWidgetPreloading(false); 671 } 672 } 673 674 private boolean beginDraggingWidget(View v) { 675 mDraggingWidget = true; 676 // Get the widget preview as the drag representation 677 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 678 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 679 680 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 681 // we abort the drag. 682 if (image.getDrawable() == null) { 683 mDraggingWidget = false; 684 return false; 685 } 686 687 // Compose the drag image 688 Bitmap preview; 689 Bitmap outline; 690 float scale = 1f; 691 Point previewPadding = null; 692 693 if (createItemInfo instanceof PendingAddWidgetInfo) { 694 // This can happen in some weird cases involving multi-touch. We can't start dragging 695 // the widget if this is null, so we break out. 696 if (mCreateWidgetInfo == null) { 697 return false; 698 } 699 700 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 701 createItemInfo = createWidgetInfo; 702 int spanX = createItemInfo.spanX; 703 int spanY = createItemInfo.spanY; 704 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 705 createWidgetInfo, true); 706 707 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 708 float minScale = 1.25f; 709 int maxWidth, maxHeight; 710 maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 711 maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 712 713 int[] previewSizeBeforeScale = new int[1]; 714 715 preview = mWidgetPreviewLoader.generateWidgetPreview(createWidgetInfo.componentName, 716 createWidgetInfo.previewImage, createWidgetInfo.icon, spanX, spanY, 717 maxWidth, maxHeight, null, previewSizeBeforeScale); 718 719 // Compare the size of the drag preview to the preview in the AppsCustomize tray 720 int previewWidthInAppsCustomize = Math.min(previewSizeBeforeScale[0], 721 mWidgetPreviewLoader.maxWidthForWidgetPreview(spanX)); 722 scale = previewWidthInAppsCustomize / (float) preview.getWidth(); 723 724 // The bitmap in the AppsCustomize tray is always the the same size, so there 725 // might be extra pixels around the preview itself - this accounts for that 726 if (previewWidthInAppsCustomize < previewDrawable.getIntrinsicWidth()) { 727 int padding = 728 (previewDrawable.getIntrinsicWidth() - previewWidthInAppsCustomize) / 2; 729 previewPadding = new Point(padding, 0); 730 } 731 } else { 732 PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag(); 733 Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo); 734 preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), 735 icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 736 737 mCanvas.setBitmap(preview); 738 mCanvas.save(); 739 WidgetPreviewLoader.renderDrawableToBitmap(icon, preview, 0, 0, 740 icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); 741 mCanvas.restore(); 742 mCanvas.setBitmap(null); 743 createItemInfo.spanX = createItemInfo.spanY = 1; 744 } 745 746 // Don't clip alpha values for the drag outline if we're using the default widget preview 747 boolean clipAlpha = !(createItemInfo instanceof PendingAddWidgetInfo && 748 (((PendingAddWidgetInfo) createItemInfo).previewImage == 0)); 749 750 // Save the preview for the outline generation, then dim the preview 751 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 752 false); 753 754 // Start the drag 755 mLauncher.lockScreenOrientation(); 756 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, clipAlpha); 757 mDragController.startDrag(image, preview, this, createItemInfo, 758 DragController.DRAG_ACTION_COPY, previewPadding, scale); 759 outline.recycle(); 760 preview.recycle(); 761 return true; 762 } 763 764 @Override 765 protected boolean beginDragging(final View v) { 766 if (!super.beginDragging(v)) return false; 767 768 if (v instanceof PagedViewIcon) { 769 beginDraggingApplication(v); 770 } else if (v instanceof PagedViewWidget) { 771 if (!beginDraggingWidget(v)) { 772 return false; 773 } 774 } 775 776 // We delay entering spring-loaded mode slightly to make sure the UI 777 // thready is free of any work. 778 postDelayed(new Runnable() { 779 @Override 780 public void run() { 781 // We don't enter spring-loaded mode if the drag has been cancelled 782 if (mLauncher.getDragController().isDragging()) { 783 // Dismiss the cling 784 mLauncher.dismissAllAppsCling(null); 785 786 // Reset the alpha on the dragged icon before we drag 787 resetDrawableState(); 788 789 // Go into spring loaded mode (must happen before we startDrag()) 790 mLauncher.enterSpringLoadedDragMode(); 791 } 792 } 793 }, 150); 794 795 return true; 796 } 797 798 /** 799 * Clean up after dragging. 800 * 801 * @param target where the item was dragged to (can be null if the item was flung) 802 */ 803 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 804 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 805 !(target instanceof DeleteDropTarget))) { 806 // Exit spring loaded mode if we have not successfully dropped or have not handled the 807 // drop in Workspace 808 mLauncher.exitSpringLoadedDragMode(); 809 } 810 mLauncher.unlockScreenOrientation(false); 811 } 812 813 @Override 814 public View getContent() { 815 return null; 816 } 817 818 @Override 819 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 820 mInTransition = true; 821 if (toWorkspace) { 822 cancelAllTasks(); 823 } 824 } 825 826 @Override 827 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 828 } 829 830 @Override 831 public void onLauncherTransitionStep(Launcher l, float t) { 832 } 833 834 @Override 835 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 836 mInTransition = false; 837 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 838 onSyncWidgetPageItems(d); 839 } 840 mDeferredSyncWidgetPageItems.clear(); 841 for (Runnable r : mDeferredPrepareLoadWidgetPreviewsTasks) { 842 r.run(); 843 } 844 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 845 mForceDrawAllChildrenNextFrame = !toWorkspace; 846 } 847 848 @Override 849 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 850 boolean success) { 851 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 852 if (isFlingToDelete) return; 853 854 endDragging(target, false, success); 855 856 // Display an error message if the drag failed due to there not being enough space on the 857 // target layout we were dropping on. 858 if (!success) { 859 boolean showOutOfSpaceMessage = false; 860 if (target instanceof Workspace) { 861 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 862 Workspace workspace = (Workspace) target; 863 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 864 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 865 if (layout != null) { 866 layout.calculateSpans(itemInfo); 867 showOutOfSpaceMessage = 868 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 869 } 870 } 871 if (showOutOfSpaceMessage) { 872 mLauncher.showOutOfSpaceMessage(false); 873 } 874 875 d.deferDragViewCleanupPostAnimation = false; 876 } 877 cleanupWidgetPreloading(success); 878 mDraggingWidget = false; 879 } 880 881 @Override 882 public void onFlingToDeleteCompleted() { 883 // We just dismiss the drag when we fling, so cleanup here 884 endDragging(null, true, true); 885 cleanupWidgetPreloading(false); 886 mDraggingWidget = false; 887 } 888 889 @Override 890 public boolean supportsFlingToDelete() { 891 return true; 892 } 893 894 @Override 895 protected void onDetachedFromWindow() { 896 super.onDetachedFromWindow(); 897 cancelAllTasks(); 898 } 899 900 public void clearAllWidgetPages() { 901 cancelAllTasks(); 902 int count = getChildCount(); 903 for (int i = 0; i < count; i++) { 904 View v = getPageAt(i); 905 if (v instanceof PagedViewGridLayout) { 906 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 907 mDirtyPageContent.set(i, true); 908 } 909 } 910 } 911 912 private void cancelAllTasks() { 913 // Clean up all the async tasks 914 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 915 while (iter.hasNext()) { 916 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 917 task.cancel(false); 918 iter.remove(); 919 mDirtyPageContent.set(task.page, true); 920 921 // We've already preallocated the views for the data to load into, so clear them as well 922 View v = getPageAt(task.page); 923 if (v instanceof PagedViewGridLayout) { 924 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 925 } 926 } 927 mDeferredSyncWidgetPageItems.clear(); 928 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 929 } 930 931 public void setContentType(ContentType type) { 932 if (type == ContentType.Widgets) { 933 invalidatePageData(mNumAppsPages, true); 934 } else if (type == ContentType.Applications) { 935 invalidatePageData(0, true); 936 } 937 } 938 939 protected void snapToPage(int whichPage, int delta, int duration) { 940 super.snapToPage(whichPage, delta, duration); 941 updateCurrentTab(whichPage); 942 943 // Update the thread priorities given the direction lookahead 944 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 945 while (iter.hasNext()) { 946 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 947 int pageIndex = task.page; 948 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 949 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 950 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 951 } else { 952 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 953 } 954 } 955 } 956 957 private void updateCurrentTab(int currentPage) { 958 AppsCustomizeTabHost tabHost = getTabHost(); 959 if (tabHost != null) { 960 String tag = tabHost.getCurrentTabTag(); 961 if (tag != null) { 962 if (currentPage >= mNumAppsPages && 963 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 964 tabHost.setCurrentTabFromContent(ContentType.Widgets); 965 } else if (currentPage < mNumAppsPages && 966 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 967 tabHost.setCurrentTabFromContent(ContentType.Applications); 968 } 969 } 970 } 971 } 972 973 /* 974 * Apps PagedView implementation 975 */ 976 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 977 int childCount = layout.getChildCount(); 978 for (int i = 0; i < childCount; ++i) { 979 layout.getChildAt(i).setVisibility(visibility); 980 } 981 } 982 private void setupPage(PagedViewCellLayout layout) { 983 layout.setCellCount(mCellCountX, mCellCountY); 984 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 985 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 986 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 987 988 // Note: We force a measure here to get around the fact that when we do layout calculations 989 // immediately after syncing, we don't have a proper width. That said, we already know the 990 // expected page width, so we can actually optimize by hiding all the TextView-based 991 // children that are expensive to measure, and let that happen naturally later. 992 setVisibilityOnChildren(layout, View.GONE); 993 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 994 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 995 layout.setMinimumWidth(getPageContentWidth()); 996 layout.measure(widthSpec, heightSpec); 997 setVisibilityOnChildren(layout, View.VISIBLE); 998 } 999 1000 public void syncAppsPageItems(int page, boolean immediate) { 1001 // ensure that we have the right number of items on the pages 1002 final boolean isRtl = isLayoutRtl(); 1003 int numCells = mCellCountX * mCellCountY; 1004 int startIndex = page * numCells; 1005 int endIndex = Math.min(startIndex + numCells, mApps.size()); 1006 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 1007 1008 layout.removeAllViewsOnPage(); 1009 ArrayList<Object> items = new ArrayList<Object>(); 1010 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 1011 for (int i = startIndex; i < endIndex; ++i) { 1012 ApplicationInfo info = mApps.get(i); 1013 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 1014 R.layout.apps_customize_application, layout, false); 1015 icon.applyFromApplicationInfo(info, true, this); 1016 icon.setOnClickListener(this); 1017 icon.setOnLongClickListener(this); 1018 icon.setOnTouchListener(this); 1019 icon.setOnKeyListener(this); 1020 1021 int index = i - startIndex; 1022 int x = index % mCellCountX; 1023 int y = index / mCellCountX; 1024 if (isRtl) { 1025 x = mCellCountX - x - 1; 1026 } 1027 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 1028 1029 items.add(info); 1030 images.add(info.iconBitmap); 1031 } 1032 1033 enableHwLayersOnVisiblePages(); 1034 } 1035 1036 /** 1037 * A helper to return the priority for loading of the specified widget page. 1038 */ 1039 private int getWidgetPageLoadPriority(int page) { 1040 // If we are snapping to another page, use that index as the target page index 1041 int toPage = mCurrentPage; 1042 if (mNextPage > -1) { 1043 toPage = mNextPage; 1044 } 1045 1046 // We use the distance from the target page as an initial guess of priority, but if there 1047 // are no pages of higher priority than the page specified, then bump up the priority of 1048 // the specified page. 1049 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1050 int minPageDiff = Integer.MAX_VALUE; 1051 while (iter.hasNext()) { 1052 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1053 minPageDiff = Math.abs(task.page - toPage); 1054 } 1055 1056 int rawPageDiff = Math.abs(page - toPage); 1057 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1058 } 1059 /** 1060 * Return the appropriate thread priority for loading for a given page (we give the current 1061 * page much higher priority) 1062 */ 1063 private int getThreadPriorityForPage(int page) { 1064 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1065 int pageDiff = getWidgetPageLoadPriority(page); 1066 if (pageDiff <= 0) { 1067 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1068 } else if (pageDiff <= 1) { 1069 return Process.THREAD_PRIORITY_LOWEST; 1070 } else { 1071 return Process.THREAD_PRIORITY_LOWEST; 1072 } 1073 } 1074 private int getSleepForPage(int page) { 1075 int pageDiff = getWidgetPageLoadPriority(page); 1076 return Math.max(0, pageDiff * sPageSleepDelay); 1077 } 1078 /** 1079 * Creates and executes a new AsyncTask to load a page of widget previews. 1080 */ 1081 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1082 int cellWidth, int cellHeight, int cellCountX) { 1083 1084 // Prune all tasks that are no longer needed 1085 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1086 while (iter.hasNext()) { 1087 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1088 int taskPage = task.page; 1089 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1090 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1091 task.cancel(false); 1092 iter.remove(); 1093 } else { 1094 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1095 } 1096 } 1097 1098 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1099 final int sleepMs = getSleepForPage(page); 1100 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1101 new AsyncTaskCallback() { 1102 @Override 1103 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1104 try { 1105 try { 1106 Thread.sleep(sleepMs); 1107 } catch (Exception e) {} 1108 loadWidgetPreviewsInBackground(task, data); 1109 } finally { 1110 if (task.isCancelled()) { 1111 data.cleanup(true); 1112 } 1113 } 1114 } 1115 }, 1116 new AsyncTaskCallback() { 1117 @Override 1118 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1119 mRunningTasks.remove(task); 1120 if (task.isCancelled()) return; 1121 // do cleanup inside onSyncWidgetPageItems 1122 onSyncWidgetPageItems(data); 1123 } 1124 }, mWidgetPreviewLoader); 1125 1126 // Ensure that the task is appropriately prioritized and runs in parallel 1127 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1128 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1129 t.setThreadPriority(getThreadPriorityForPage(page)); 1130 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1131 mRunningTasks.add(t); 1132 } 1133 1134 /* 1135 * Widgets PagedView implementation 1136 */ 1137 private void setupPage(PagedViewGridLayout layout) { 1138 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1139 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1140 1141 // Note: We force a measure here to get around the fact that when we do layout calculations 1142 // immediately after syncing, we don't have a proper width. 1143 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1144 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1145 layout.setMinimumWidth(getPageContentWidth()); 1146 layout.measure(widthSpec, heightSpec); 1147 } 1148 1149 public void syncWidgetPageItems(final int page, final boolean immediate) { 1150 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1151 1152 // Calculate the dimensions of each cell we are giving to each widget 1153 final ArrayList<Object> items = new ArrayList<Object>(); 1154 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1155 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1156 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1157 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1158 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1159 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1160 1161 // Prepare the set of widgets to load previews for in the background 1162 int offset = (page - mNumAppsPages) * numItemsPerPage; 1163 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1164 items.add(mWidgets.get(i)); 1165 } 1166 1167 // Prepopulate the pages with the other widget info, and fill in the previews later 1168 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1169 layout.setColumnCount(layout.getCellCountX()); 1170 for (int i = 0; i < items.size(); ++i) { 1171 Object rawInfo = items.get(i); 1172 PendingAddItemInfo createItemInfo = null; 1173 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1174 R.layout.apps_customize_widget, layout, false); 1175 if (rawInfo instanceof AppWidgetProviderInfo) { 1176 // Fill in the widget information 1177 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1178 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1179 1180 // Determine the widget spans and min resize spans. 1181 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1182 createItemInfo.spanX = spanXY[0]; 1183 createItemInfo.spanY = spanXY[1]; 1184 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1185 createItemInfo.minSpanX = minSpanXY[0]; 1186 createItemInfo.minSpanY = minSpanXY[1]; 1187 1188 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY, mWidgetPreviewLoader); 1189 widget.setTag(createItemInfo); 1190 widget.setShortPressListener(this); 1191 } else if (rawInfo instanceof ResolveInfo) { 1192 // Fill in the shortcuts information 1193 ResolveInfo info = (ResolveInfo) rawInfo; 1194 createItemInfo = new PendingAddShortcutInfo(info.activityInfo); 1195 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1196 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1197 info.activityInfo.name); 1198 widget.applyFromResolveInfo(mPackageManager, info, mWidgetPreviewLoader); 1199 widget.setTag(createItemInfo); 1200 } 1201 widget.setOnClickListener(this); 1202 widget.setOnLongClickListener(this); 1203 widget.setOnTouchListener(this); 1204 widget.setOnKeyListener(this); 1205 1206 // Layout each widget 1207 int ix = i % mWidgetCountX; 1208 int iy = i / mWidgetCountX; 1209 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1210 GridLayout.spec(iy, GridLayout.START), 1211 GridLayout.spec(ix, GridLayout.TOP)); 1212 lp.width = cellWidth; 1213 lp.height = cellHeight; 1214 lp.setGravity(Gravity.TOP | Gravity.START); 1215 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1216 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1217 layout.addView(widget, lp); 1218 } 1219 1220 // wait until a call on onLayout to start loading, because 1221 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1222 // TODO: can we do a measure/layout immediately? 1223 layout.setOnLayoutListener(new Runnable() { 1224 public void run() { 1225 // Load the widget previews 1226 int maxPreviewWidth = cellWidth; 1227 int maxPreviewHeight = cellHeight; 1228 if (layout.getChildCount() > 0) { 1229 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1230 int[] maxSize = w.getPreviewSize(); 1231 maxPreviewWidth = maxSize[0]; 1232 maxPreviewHeight = maxSize[1]; 1233 } 1234 1235 mWidgetPreviewLoader.setPreviewSize( 1236 maxPreviewWidth, maxPreviewHeight, mWidgetSpacingLayout); 1237 if (immediate) { 1238 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1239 maxPreviewWidth, maxPreviewHeight, null, null, mWidgetPreviewLoader); 1240 loadWidgetPreviewsInBackground(null, data); 1241 onSyncWidgetPageItems(data); 1242 } else { 1243 if (mInTransition) { 1244 mDeferredPrepareLoadWidgetPreviewsTasks.add(this); 1245 } else { 1246 prepareLoadWidgetPreviewsTask(page, items, 1247 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1248 } 1249 } 1250 layout.setOnLayoutListener(null); 1251 } 1252 }); 1253 } 1254 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1255 AsyncTaskPageData data) { 1256 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1257 // previews synchronously 1258 if (task != null) { 1259 // Ensure that this task starts running at the correct priority 1260 task.syncThreadPriority(); 1261 } 1262 1263 // Load each of the widget/shortcut previews 1264 ArrayList<Object> items = data.items; 1265 ArrayList<Bitmap> images = data.generatedImages; 1266 int count = items.size(); 1267 for (int i = 0; i < count; ++i) { 1268 if (task != null) { 1269 // Ensure we haven't been cancelled yet 1270 if (task.isCancelled()) break; 1271 // Before work on each item, ensure that this task is running at the correct 1272 // priority 1273 task.syncThreadPriority(); 1274 } 1275 1276 images.add(mWidgetPreviewLoader.getPreview(items.get(i))); 1277 } 1278 } 1279 1280 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1281 if (mInTransition) { 1282 mDeferredSyncWidgetPageItems.add(data); 1283 return; 1284 } 1285 try { 1286 int page = data.page; 1287 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1288 1289 ArrayList<Object> items = data.items; 1290 int count = items.size(); 1291 for (int i = 0; i < count; ++i) { 1292 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1293 if (widget != null) { 1294 Bitmap preview = data.generatedImages.get(i); 1295 widget.applyPreview(new FastBitmapDrawable(preview), i); 1296 } 1297 } 1298 1299 enableHwLayersOnVisiblePages(); 1300 1301 // Update all thread priorities 1302 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1303 while (iter.hasNext()) { 1304 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1305 int pageIndex = task.page; 1306 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1307 } 1308 } finally { 1309 data.cleanup(false); 1310 } 1311 } 1312 1313 @Override 1314 public void syncPages() { 1315 removeAllViews(); 1316 cancelAllTasks(); 1317 1318 Context context = getContext(); 1319 for (int j = 0; j < mNumWidgetPages; ++j) { 1320 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1321 mWidgetCountY); 1322 setupPage(layout); 1323 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1324 LayoutParams.MATCH_PARENT)); 1325 } 1326 1327 for (int i = 0; i < mNumAppsPages; ++i) { 1328 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1329 setupPage(layout); 1330 addView(layout); 1331 } 1332 } 1333 1334 @Override 1335 public void syncPageItems(int page, boolean immediate) { 1336 if (page < mNumAppsPages) { 1337 syncAppsPageItems(page, immediate); 1338 } else { 1339 syncWidgetPageItems(page, immediate); 1340 } 1341 } 1342 1343 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1344 // it is in the z-order. This is important to insure touch events are handled correctly. 1345 View getPageAt(int index) { 1346 return getChildAt(indexToPage(index)); 1347 } 1348 1349 @Override 1350 protected int indexToPage(int index) { 1351 return getChildCount() - index - 1; 1352 } 1353 1354 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1355 @Override 1356 protected void screenScrolled(int screenCenter) { 1357 final boolean isRtl = isLayoutRtl(); 1358 super.screenScrolled(screenCenter); 1359 1360 for (int i = 0; i < getChildCount(); i++) { 1361 View v = getPageAt(i); 1362 if (v != null) { 1363 float scrollProgress = getScrollProgress(screenCenter, v, i); 1364 1365 float interpolatedProgress; 1366 float translationX; 1367 float maxScrollProgress = Math.max(0, scrollProgress); 1368 float minScrollProgress = Math.min(0, scrollProgress); 1369 1370 if (isRtl) { 1371 translationX = maxScrollProgress * v.getMeasuredWidth(); 1372 interpolatedProgress = mZInterpolator.getInterpolation(Math.abs(maxScrollProgress)); 1373 } else { 1374 translationX = minScrollProgress * v.getMeasuredWidth(); 1375 interpolatedProgress = mZInterpolator.getInterpolation(Math.abs(minScrollProgress)); 1376 } 1377 float scale = (1 - interpolatedProgress) + 1378 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1379 1380 float alpha; 1381 if (isRtl && (scrollProgress > 0)) { 1382 alpha = mAlphaInterpolator.getInterpolation(1 - Math.abs(maxScrollProgress)); 1383 } else if (!isRtl && (scrollProgress < 0)) { 1384 alpha = mAlphaInterpolator.getInterpolation(1 - Math.abs(scrollProgress)); 1385 } else { 1386 // On large screens we need to fade the page as it nears its leftmost position 1387 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1388 } 1389 1390 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1391 int pageWidth = v.getMeasuredWidth(); 1392 int pageHeight = v.getMeasuredHeight(); 1393 1394 if (PERFORM_OVERSCROLL_ROTATION) { 1395 float xPivot = isRtl ? 1f - TRANSITION_PIVOT : TRANSITION_PIVOT; 1396 boolean isOverscrollingFirstPage = isRtl ? scrollProgress > 0 : scrollProgress < 0; 1397 boolean isOverscrollingLastPage = isRtl ? scrollProgress < 0 : scrollProgress > 0; 1398 1399 if (i == 0 && isOverscrollingFirstPage) { 1400 // Overscroll to the left 1401 v.setPivotX(xPivot * pageWidth); 1402 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1403 scale = 1.0f; 1404 alpha = 1.0f; 1405 // On the first page, we don't want the page to have any lateral motion 1406 translationX = 0; 1407 } else if (i == getChildCount() - 1 && isOverscrollingLastPage) { 1408 // Overscroll to the right 1409 v.setPivotX((1 - xPivot) * pageWidth); 1410 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1411 scale = 1.0f; 1412 alpha = 1.0f; 1413 // On the last page, we don't want the page to have any lateral motion. 1414 translationX = 0; 1415 } else { 1416 v.setPivotY(pageHeight / 2.0f); 1417 v.setPivotX(pageWidth / 2.0f); 1418 v.setRotationY(0f); 1419 } 1420 } 1421 1422 v.setTranslationX(translationX); 1423 v.setScaleX(scale); 1424 v.setScaleY(scale); 1425 v.setAlpha(alpha); 1426 1427 // If the view has 0 alpha, we set it to be invisible so as to prevent 1428 // it from accepting touches 1429 if (alpha == 0) { 1430 v.setVisibility(INVISIBLE); 1431 } else if (v.getVisibility() != VISIBLE) { 1432 v.setVisibility(VISIBLE); 1433 } 1434 } 1435 } 1436 1437 enableHwLayersOnVisiblePages(); 1438 } 1439 1440 private void enableHwLayersOnVisiblePages() { 1441 final int screenCount = getChildCount(); 1442 1443 getVisiblePages(mTempVisiblePagesRange); 1444 int leftScreen = mTempVisiblePagesRange[0]; 1445 int rightScreen = mTempVisiblePagesRange[1]; 1446 int forceDrawScreen = -1; 1447 if (leftScreen == rightScreen) { 1448 // make sure we're caching at least two pages always 1449 if (rightScreen < screenCount - 1) { 1450 rightScreen++; 1451 forceDrawScreen = rightScreen; 1452 } else if (leftScreen > 0) { 1453 leftScreen--; 1454 forceDrawScreen = leftScreen; 1455 } 1456 } else { 1457 forceDrawScreen = leftScreen + 1; 1458 } 1459 1460 for (int i = 0; i < screenCount; i++) { 1461 final View layout = (View) getPageAt(i); 1462 if (!(leftScreen <= i && i <= rightScreen && 1463 (i == forceDrawScreen || shouldDrawChild(layout)))) { 1464 layout.setLayerType(LAYER_TYPE_NONE, null); 1465 } 1466 } 1467 1468 for (int i = 0; i < screenCount; i++) { 1469 final View layout = (View) getPageAt(i); 1470 1471 if (leftScreen <= i && i <= rightScreen && 1472 (i == forceDrawScreen || shouldDrawChild(layout))) { 1473 if (layout.getLayerType() != LAYER_TYPE_HARDWARE) { 1474 layout.setLayerType(LAYER_TYPE_HARDWARE, null); 1475 } 1476 } 1477 } 1478 } 1479 1480 protected void overScroll(float amount) { 1481 acceleratedOverScroll(amount); 1482 } 1483 1484 /** 1485 * Used by the parent to get the content width to set the tab bar to 1486 * @return 1487 */ 1488 public int getPageContentWidth() { 1489 return mContentWidth; 1490 } 1491 1492 @Override 1493 protected void onPageEndMoving() { 1494 super.onPageEndMoving(); 1495 mForceDrawAllChildrenNextFrame = true; 1496 // We reset the save index when we change pages so that it will be recalculated on next 1497 // rotation 1498 mSaveInstanceStateItemIndex = -1; 1499 } 1500 1501 /* 1502 * AllAppsView implementation 1503 */ 1504 public void setup(Launcher launcher, DragController dragController) { 1505 mLauncher = launcher; 1506 mDragController = dragController; 1507 } 1508 1509 /** 1510 * We should call thise method whenever the core data changes (mApps, mWidgets) so that we can 1511 * appropriately determine when to invalidate the PagedView page data. In cases where the data 1512 * has yet to be set, we can requestLayout() and wait for onDataReady() to be called in the 1513 * next onMeasure() pass, which will trigger an invalidatePageData() itself. 1514 */ 1515 private void invalidateOnDataChange() { 1516 if (!isDataReady()) { 1517 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1518 // request a layout to trigger the page data when ready. 1519 requestLayout(); 1520 } else { 1521 cancelAllTasks(); 1522 invalidatePageData(); 1523 } 1524 } 1525 1526 public void setApps(ArrayList<ApplicationInfo> list) { 1527 mApps = list; 1528 Collections.sort(mApps, LauncherModel.getAppNameComparator()); 1529 updatePageCounts(); 1530 invalidateOnDataChange(); 1531 } 1532 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1533 // We add it in place, in alphabetical order 1534 int count = list.size(); 1535 for (int i = 0; i < count; ++i) { 1536 ApplicationInfo info = list.get(i); 1537 int index = Collections.binarySearch(mApps, info, LauncherModel.getAppNameComparator()); 1538 if (index < 0) { 1539 mApps.add(-(index + 1), info); 1540 } 1541 } 1542 } 1543 public void addApps(ArrayList<ApplicationInfo> list) { 1544 addAppsWithoutInvalidate(list); 1545 updatePageCounts(); 1546 invalidateOnDataChange(); 1547 } 1548 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1549 ComponentName removeComponent = item.intent.getComponent(); 1550 int length = list.size(); 1551 for (int i = 0; i < length; ++i) { 1552 ApplicationInfo info = list.get(i); 1553 if (info.intent.getComponent().equals(removeComponent)) { 1554 return i; 1555 } 1556 } 1557 return -1; 1558 } 1559 private int findAppByPackage(List<ApplicationInfo> list, String packageName) { 1560 int length = list.size(); 1561 for (int i = 0; i < length; ++i) { 1562 ApplicationInfo info = list.get(i); 1563 if (ItemInfo.getPackageName(info.intent).equals(packageName)) { 1564 return i; 1565 } 1566 } 1567 return -1; 1568 } 1569 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1570 // loop through all the apps and remove apps that have the same component 1571 int length = list.size(); 1572 for (int i = 0; i < length; ++i) { 1573 ApplicationInfo info = list.get(i); 1574 int removeIndex = findAppByComponent(mApps, info); 1575 if (removeIndex > -1) { 1576 mApps.remove(removeIndex); 1577 } 1578 } 1579 } 1580 private void removeAppsWithPackageNameWithoutInvalidate(ArrayList<String> packageNames) { 1581 // loop through all the package names and remove apps that have the same package name 1582 for (String pn : packageNames) { 1583 int removeIndex = findAppByPackage(mApps, pn); 1584 while (removeIndex > -1) { 1585 mApps.remove(removeIndex); 1586 removeIndex = findAppByPackage(mApps, pn); 1587 } 1588 } 1589 } 1590 public void removeApps(ArrayList<String> packageNames) { 1591 removeAppsWithPackageNameWithoutInvalidate(packageNames); 1592 updatePageCounts(); 1593 invalidateOnDataChange(); 1594 } 1595 public void updateApps(ArrayList<ApplicationInfo> list) { 1596 // We remove and re-add the updated applications list because it's properties may have 1597 // changed (ie. the title), and this will ensure that the items will be in their proper 1598 // place in the list. 1599 removeAppsWithoutInvalidate(list); 1600 addAppsWithoutInvalidate(list); 1601 updatePageCounts(); 1602 invalidateOnDataChange(); 1603 } 1604 1605 public void reset() { 1606 // If we have reset, then we should not continue to restore the previous state 1607 mSaveInstanceStateItemIndex = -1; 1608 1609 AppsCustomizeTabHost tabHost = getTabHost(); 1610 String tag = tabHost.getCurrentTabTag(); 1611 if (tag != null) { 1612 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1613 tabHost.setCurrentTabFromContent(ContentType.Applications); 1614 } 1615 } 1616 1617 if (mCurrentPage != 0) { 1618 invalidatePageData(0); 1619 } 1620 } 1621 1622 private AppsCustomizeTabHost getTabHost() { 1623 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1624 } 1625 1626 public void dumpState() { 1627 // TODO: Dump information related to current list of Applications, Widgets, etc. 1628 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1629 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1630 } 1631 1632 private void dumpAppWidgetProviderInfoList(String tag, String label, 1633 ArrayList<Object> list) { 1634 Log.d(tag, label + " size=" + list.size()); 1635 for (Object i: list) { 1636 if (i instanceof AppWidgetProviderInfo) { 1637 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1638 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1639 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1640 + " initialLayout=" + info.initialLayout 1641 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1642 } else if (i instanceof ResolveInfo) { 1643 ResolveInfo info = (ResolveInfo) i; 1644 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1645 + info.icon); 1646 } 1647 } 1648 } 1649 1650 public void surrender() { 1651 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1652 // should stop this now. 1653 1654 // Stop all background tasks 1655 cancelAllTasks(); 1656 } 1657 1658 @Override 1659 public void iconPressed(PagedViewIcon icon) { 1660 // Reset the previously pressed icon and store a reference to the pressed icon so that 1661 // we can reset it on return to Launcher (in Launcher.onResume()) 1662 if (mPressedIcon != null) { 1663 mPressedIcon.resetDrawableState(); 1664 } 1665 mPressedIcon = icon; 1666 } 1667 1668 public void resetDrawableState() { 1669 if (mPressedIcon != null) { 1670 mPressedIcon.resetDrawableState(); 1671 mPressedIcon = null; 1672 } 1673 } 1674 1675 /* 1676 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1677 * widget previews in the background with the AsyncTasks. 1678 */ 1679 final static int sLookBehindPageCount = 2; 1680 final static int sLookAheadPageCount = 2; 1681 protected int getAssociatedLowerPageBound(int page) { 1682 final int count = getChildCount(); 1683 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1684 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1685 return windowMinIndex; 1686 } 1687 protected int getAssociatedUpperPageBound(int page) { 1688 final int count = getChildCount(); 1689 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1690 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1691 count - 1); 1692 return windowMaxIndex; 1693 } 1694 1695 @Override 1696 protected String getCurrentPageDescription() { 1697 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1698 int stringId = R.string.default_scroll_format; 1699 int count = 0; 1700 1701 if (page < mNumAppsPages) { 1702 stringId = R.string.apps_customize_apps_scroll_format; 1703 count = mNumAppsPages; 1704 } else { 1705 page -= mNumAppsPages; 1706 stringId = R.string.apps_customize_widgets_scroll_format; 1707 count = mNumWidgetPages; 1708 } 1709 1710 return String.format(getContext().getString(stringId), page + 1, count); 1711 } 1712} 1713