AppsCustomizePagedView.java revision 3b187b88baf80e520f6bd32d60abe6460d28a040
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher2; 18 19import android.animation.AnimatorSet; 20import android.animation.ObjectAnimator; 21import android.animation.ValueAnimator; 22import android.appwidget.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.MaskFilter; 36import android.graphics.Paint; 37import android.graphics.PorterDuff; 38import android.graphics.Rect; 39import android.graphics.TableMaskFilter; 40import android.graphics.drawable.Drawable; 41import android.os.AsyncTask; 42import android.os.Process; 43import android.util.AttributeSet; 44import android.util.Log; 45import android.view.Gravity; 46import android.view.KeyEvent; 47import android.view.LayoutInflater; 48import android.view.MotionEvent; 49import android.view.View; 50import android.view.ViewConfiguration; 51import android.view.ViewGroup; 52import android.view.animation.AccelerateInterpolator; 53import android.view.animation.DecelerateInterpolator; 54import android.widget.GridLayout; 55import android.widget.ImageView; 56import android.widget.Toast; 57 58import com.android.launcher.R; 59import com.android.launcher2.DropTarget.DragObject; 60 61import java.util.ArrayList; 62import java.util.Collections; 63import java.util.Iterator; 64import java.util.List; 65 66/** 67 * A simple callback interface which also provides the results of the task. 68 */ 69interface AsyncTaskCallback { 70 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 71} 72 73/** 74 * The data needed to perform either of the custom AsyncTasks. 75 */ 76class AsyncTaskPageData { 77 enum Type { 78 LoadWidgetPreviewData 79 } 80 81 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 82 AsyncTaskCallback postR) { 83 page = p; 84 items = l; 85 sourceImages = si; 86 generatedImages = new ArrayList<Bitmap>(); 87 maxImageWidth = maxImageHeight = -1; 88 doInBackgroundCallback = bgR; 89 postExecuteCallback = postR; 90 } 91 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 92 AsyncTaskCallback postR) { 93 page = p; 94 items = l; 95 generatedImages = new ArrayList<Bitmap>(); 96 maxImageWidth = cw; 97 maxImageHeight = ch; 98 doInBackgroundCallback = bgR; 99 postExecuteCallback = postR; 100 } 101 void cleanup(boolean cancelled) { 102 // Clean up any references to source/generated bitmaps 103 if (sourceImages != null) { 104 if (cancelled) { 105 for (Bitmap b : sourceImages) { 106 b.recycle(); 107 } 108 } 109 sourceImages.clear(); 110 } 111 if (generatedImages != null) { 112 if (cancelled) { 113 for (Bitmap b : generatedImages) { 114 b.recycle(); 115 } 116 } 117 generatedImages.clear(); 118 } 119 } 120 int page; 121 ArrayList<Object> items; 122 ArrayList<Bitmap> sourceImages; 123 ArrayList<Bitmap> generatedImages; 124 int maxImageWidth; 125 int maxImageHeight; 126 AsyncTaskCallback doInBackgroundCallback; 127 AsyncTaskCallback postExecuteCallback; 128} 129 130/** 131 * A generic template for an async task used in AppsCustomize. 132 */ 133class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 134 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 135 page = p; 136 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 137 dataType = ty; 138 } 139 @Override 140 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 141 if (params.length != 1) return null; 142 // Load each of the widget previews in the background 143 params[0].doInBackgroundCallback.run(this, params[0]); 144 return params[0]; 145 } 146 @Override 147 protected void onPostExecute(AsyncTaskPageData result) { 148 // All the widget previews are loaded, so we can just callback to inflate the page 149 result.postExecuteCallback.run(this, result); 150 } 151 152 void setThreadPriority(int p) { 153 threadPriority = p; 154 } 155 void syncThreadPriority() { 156 Process.setThreadPriority(threadPriority); 157 } 158 159 // The page that this async task is associated with 160 AsyncTaskPageData.Type dataType; 161 int page; 162 int threadPriority; 163} 164 165/** 166 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 167 */ 168public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 169 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource, 170 PagedViewIcon.PressedCallback { 171 static final String LOG_TAG = "AppsCustomizePagedView"; 172 173 /** 174 * The different content types that this paged view can show. 175 */ 176 public enum ContentType { 177 Applications, 178 Widgets 179 } 180 181 // Refs 182 private Launcher mLauncher; 183 private DragController mDragController; 184 private final LayoutInflater mLayoutInflater; 185 private final PackageManager mPackageManager; 186 187 // Save and Restore 188 private int mSaveInstanceStateItemIndex = -1; 189 private PagedViewIcon mPressedIcon; 190 191 // Content 192 private ArrayList<ApplicationInfo> mApps; 193 private ArrayList<Object> mWidgets; 194 195 // Cling 196 private boolean mHasShownAllAppsCling; 197 private int mClingFocusedX; 198 private int mClingFocusedY; 199 200 // Caching 201 private Canvas mCanvas; 202 private Drawable mDefaultWidgetBackground; 203 private IconCache mIconCache; 204 private int mDragViewMultiplyColor; 205 206 // Dimens 207 private int mContentWidth; 208 private int mAppIconSize; 209 private int mMaxAppCellCountX, mMaxAppCellCountY; 210 private int mWidgetCountX, mWidgetCountY; 211 private int mWidgetWidthGap, mWidgetHeightGap; 212 private final int mWidgetPreviewIconPaddedDimension; 213 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 214 private PagedViewCellLayout mWidgetSpacingLayout; 215 private int mNumAppsPages; 216 private int mNumWidgetPages; 217 218 // Relating to the scroll and overscroll effects 219 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 220 private static float CAMERA_DISTANCE = 6500; 221 private static float TRANSITION_SCALE_FACTOR = 0.74f; 222 private static float TRANSITION_PIVOT = 0.65f; 223 private static float TRANSITION_MAX_ROTATION = 22; 224 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 225 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 226 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 227 228 // Previews & outlines 229 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 230 private static final int sPageSleepDelay = 200; 231 232 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 233 super(context, attrs); 234 mLayoutInflater = LayoutInflater.from(context); 235 mPackageManager = context.getPackageManager(); 236 mApps = new ArrayList<ApplicationInfo>(); 237 mWidgets = new ArrayList<Object>(); 238 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 239 mCanvas = new Canvas(); 240 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 241 242 // Save the default widget preview background 243 Resources resources = context.getResources(); 244 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 245 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 246 mDragViewMultiplyColor = resources.getColor(R.color.drag_view_multiply_color); 247 248 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 249 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 250 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 251 mWidgetWidthGap = 252 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 253 mWidgetHeightGap = 254 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 255 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 256 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 257 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 258 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 259 a.recycle(); 260 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 261 262 // The padding on the non-matched dimension for the default widget preview icons 263 // (top + bottom) 264 mWidgetPreviewIconPaddedDimension = 265 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 266 mFadeInAdjacentScreens = false; 267 } 268 269 @Override 270 protected void init() { 271 super.init(); 272 mCenterPagesVertically = false; 273 274 Context context = getContext(); 275 Resources r = context.getResources(); 276 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 277 } 278 279 @Override 280 protected void onUnhandledTap(MotionEvent ev) { 281 if (LauncherApplication.isScreenLarge()) { 282 // Dismiss AppsCustomize if we tap 283 mLauncher.showWorkspace(true); 284 } 285 } 286 287 /** Returns the item index of the center item on this page so that we can restore to this 288 * item index when we rotate. */ 289 private int getMiddleComponentIndexOnCurrentPage() { 290 int i = -1; 291 if (getPageCount() > 0) { 292 int currentPage = getCurrentPage(); 293 if (currentPage < mNumAppsPages) { 294 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 295 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 296 int numItemsPerPage = mCellCountX * mCellCountY; 297 int childCount = childrenLayout.getChildCount(); 298 if (childCount > 0) { 299 i = (currentPage * numItemsPerPage) + (childCount / 2); 300 } 301 } else { 302 int numApps = mApps.size(); 303 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 304 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 305 int childCount = layout.getChildCount(); 306 if (childCount > 0) { 307 i = numApps + 308 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 309 } 310 } 311 } 312 return i; 313 } 314 315 /** Get the index of the item to restore to if we need to restore the current page. */ 316 int getSaveInstanceStateIndex() { 317 if (mSaveInstanceStateItemIndex == -1) { 318 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 319 } 320 return mSaveInstanceStateItemIndex; 321 } 322 323 /** Returns the page in the current orientation which is expected to contain the specified 324 * item index. */ 325 int getPageForComponent(int index) { 326 if (index < 0) return 0; 327 328 if (index < mApps.size()) { 329 int numItemsPerPage = mCellCountX * mCellCountY; 330 return (index / numItemsPerPage); 331 } else { 332 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 333 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 334 } 335 } 336 337 /** 338 * This differs from isDataReady as this is the test done if isDataReady is not set. 339 */ 340 private boolean testDataReady() { 341 // We only do this test once, and we default to the Applications page, so we only really 342 // have to wait for there to be apps. 343 // TODO: What if one of them is validly empty 344 return !mApps.isEmpty() && !mWidgets.isEmpty(); 345 } 346 347 /** Restores the page for an item at the specified index */ 348 void restorePageForIndex(int index) { 349 if (index < 0) return; 350 mSaveInstanceStateItemIndex = index; 351 } 352 353 private void updatePageCounts() { 354 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 355 (float) (mWidgetCountX * mWidgetCountY)); 356 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 357 } 358 359 protected void onDataReady(int width, int height) { 360 // Note that we transpose the counts in portrait so that we get a similar layout 361 boolean isLandscape = getResources().getConfiguration().orientation == 362 Configuration.ORIENTATION_LANDSCAPE; 363 int maxCellCountX = Integer.MAX_VALUE; 364 int maxCellCountY = Integer.MAX_VALUE; 365 if (LauncherApplication.isScreenLarge()) { 366 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 367 LauncherModel.getCellCountY()); 368 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 369 LauncherModel.getCellCountX()); 370 } 371 if (mMaxAppCellCountX > -1) { 372 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 373 } 374 if (mMaxAppCellCountY > -1) { 375 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 376 } 377 378 // Now that the data is ready, we can calculate the content width, the number of cells to 379 // use for each page 380 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 381 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 382 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 383 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 384 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 385 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 386 updatePageCounts(); 387 388 // Force a measure to update recalculate the gaps 389 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 390 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 391 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 392 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 393 394 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 395 final boolean hostIsTransitioning = host.isTransitioning(); 396 397 // Restore the page 398 int page = getPageForComponent(mSaveInstanceStateItemIndex); 399 invalidatePageData(Math.max(0, page), hostIsTransitioning); 400 401 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 402 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 403 // returned while animating) 404 if (!hostIsTransitioning) { 405 post(new Runnable() { 406 @Override 407 public void run() { 408 showAllAppsCling(); 409 } 410 }); 411 } 412 } 413 414 void showAllAppsCling() { 415 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 416 mHasShownAllAppsCling = true; 417 // Calculate the position for the cling punch through 418 int[] offset = new int[2]; 419 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 420 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 421 // PagedViews are centered horizontally but top aligned 422 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 423 offset[0]; 424 pos[1] += offset[1]; 425 mLauncher.showFirstRunAllAppsCling(pos); 426 } 427 } 428 429 @Override 430 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 431 int width = MeasureSpec.getSize(widthMeasureSpec); 432 int height = MeasureSpec.getSize(heightMeasureSpec); 433 if (!isDataReady()) { 434 if (testDataReady()) { 435 setDataIsReady(); 436 setMeasuredDimension(width, height); 437 onDataReady(width, height); 438 } 439 } 440 441 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 442 } 443 444 public void onPackagesUpdated() { 445 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 446 // by a broadcast receiver, and in order for it to work correctly, we need to know that 447 // the AppWidgetService has already received and processed the same broadcast. Since there 448 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 449 // we should have a more precise way of ensuring the AppWidgetService is up to date. 450 postDelayed(new Runnable() { 451 public void run() { 452 updatePackages(); 453 } 454 }, 500); 455 } 456 457 public void updatePackages() { 458 // Get the list of widgets and shortcuts 459 boolean wasEmpty = mWidgets.isEmpty(); 460 mWidgets.clear(); 461 List<AppWidgetProviderInfo> widgets = 462 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 463 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 464 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 465 for (AppWidgetProviderInfo widget : widgets) { 466 if (widget.minWidth > 0 && widget.minHeight > 0) { 467 mWidgets.add(widget); 468 } else { 469 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 470 widget.minWidth + ", " + widget.minHeight + ")"); 471 } 472 } 473 mWidgets.addAll(shortcuts); 474 Collections.sort(mWidgets, 475 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 476 updatePageCounts(); 477 478 if (wasEmpty) { 479 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 480 // a layout to do this test and invalidate the page data when ready. 481 if (testDataReady()) requestLayout(); 482 } else { 483 cancelAllTasks(); 484 invalidatePageData(); 485 } 486 } 487 488 @Override 489 public void onClick(View v) { 490 // When we have exited all apps or are in transition, disregard clicks 491 if (!mLauncher.isAllAppsCustomizeOpen() || 492 mLauncher.getWorkspace().isSwitchingState()) return; 493 494 if (v instanceof PagedViewIcon) { 495 // Animate some feedback to the click 496 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 497 mLauncher.startActivitySafely(appInfo.intent, appInfo); 498 499 // Lock the drawable state to pressed until we return to Launcher 500 if (mPressedIcon != null) { 501 mPressedIcon.lockDrawableState(); 502 } 503 } else if (v instanceof PagedViewWidget) { 504 // Let the user know that they have to long press to add a widget 505 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 506 Toast.LENGTH_SHORT).show(); 507 508 // Create a little animation to show that the widget can move 509 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 510 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 511 AnimatorSet bounce = new AnimatorSet(); 512 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 513 tyuAnim.setDuration(125); 514 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 515 tydAnim.setDuration(100); 516 bounce.play(tyuAnim).before(tydAnim); 517 bounce.setInterpolator(new AccelerateInterpolator()); 518 bounce.start(); 519 } 520 } 521 522 public boolean onKey(View v, int keyCode, KeyEvent event) { 523 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 524 } 525 526 /* 527 * PagedViewWithDraggableItems implementation 528 */ 529 @Override 530 protected void determineDraggingStart(android.view.MotionEvent ev) { 531 // Disable dragging by pulling an app down for now. 532 } 533 534 private void beginDraggingApplication(View v) { 535 mLauncher.getWorkspace().onDragStartedWithItem(v); 536 mLauncher.getWorkspace().beginDragShared(v, this); 537 } 538 539 private void beginDraggingWidget(View v) { 540 // Get the widget preview as the drag representation 541 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 542 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 543 544 // Compose the drag image 545 Bitmap preview; 546 Bitmap outline; 547 if (createItemInfo instanceof PendingAddWidgetInfo) { 548 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 549 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 550 createItemInfo.spanX = spanXY[0]; 551 createItemInfo.spanY = spanXY[1]; 552 553 int[] maxSize = mLauncher.getWorkspace().estimateItemSize(spanXY[0], spanXY[1], 554 createWidgetInfo, true); 555 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 556 createWidgetInfo.icon, spanXY[0], spanXY[1], maxSize[0], maxSize[1]); 557 } else { 558 // Workaround for the fact that we don't keep the original ResolveInfo associated with 559 // the shortcut around. To get the icon, we just render the preview image (which has 560 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 561 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 562 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 563 Drawable d = image.getDrawable(); 564 mCanvas.setBitmap(preview); 565 d.draw(mCanvas); 566 mCanvas.setBitmap(null); 567 createItemInfo.spanX = createItemInfo.spanY = 1; 568 } 569 570 // We use a custom alpha clip table for the default widget previews 571 Paint alphaClipPaint = null; 572 if (createItemInfo instanceof PendingAddWidgetInfo) { 573 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 574 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 575 alphaClipPaint = new Paint(); 576 alphaClipPaint.setMaskFilter(alphaClipTable); 577 } 578 } 579 580 // Save the preview for the outline generation, then dim the preview 581 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 582 false); 583 mCanvas.setBitmap(preview); 584 mCanvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 585 mCanvas.setBitmap(null); 586 587 // Start the drag 588 alphaClipPaint = null; 589 mLauncher.lockScreenOrientationOnLargeUI(); 590 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 591 mDragController.startDrag(image, preview, this, createItemInfo, 592 DragController.DRAG_ACTION_COPY, null); 593 outline.recycle(); 594 preview.recycle(); 595 } 596 @Override 597 protected boolean beginDragging(View v) { 598 // Dismiss the cling 599 mLauncher.dismissAllAppsCling(null); 600 601 if (!super.beginDragging(v)) return false; 602 603 // Reset the alpha on the dragged icon before we drag 604 resetDrawableState(); 605 606 // Go into spring loaded mode (must happen before we startDrag()) 607 mLauncher.enterSpringLoadedDragMode(); 608 609 if (v instanceof PagedViewIcon) { 610 beginDraggingApplication(v); 611 } else if (v instanceof PagedViewWidget) { 612 beginDraggingWidget(v); 613 } 614 return true; 615 } 616 private void endDragging(View target, boolean success) { 617 mLauncher.getWorkspace().onDragStopped(success); 618 if (!success || (target != mLauncher.getWorkspace() && 619 !(target instanceof DeleteDropTarget))) { 620 // Exit spring loaded mode if we have not successfully dropped or have not handled the 621 // drop in Workspace 622 mLauncher.exitSpringLoadedDragMode(); 623 } 624 mLauncher.unlockScreenOrientationOnLargeUI(); 625 626 } 627 628 @Override 629 public void onDropCompleted(View target, DragObject d, boolean success) { 630 endDragging(target, success); 631 632 // Display an error message if the drag failed due to there not being enough space on the 633 // target layout we were dropping on. 634 if (!success) { 635 boolean showOutOfSpaceMessage = false; 636 if (target instanceof Workspace) { 637 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 638 Workspace workspace = (Workspace) target; 639 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 640 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 641 if (layout != null) { 642 layout.calculateSpans(itemInfo); 643 showOutOfSpaceMessage = 644 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 645 } 646 } 647 if (showOutOfSpaceMessage) { 648 mLauncher.showOutOfSpaceMessage(); 649 } 650 } 651 } 652 653 @Override 654 protected void onDetachedFromWindow() { 655 super.onDetachedFromWindow(); 656 cancelAllTasks(); 657 } 658 659 public void clearAllWidgetPages() { 660 cancelAllTasks(); 661 int count = getChildCount(); 662 for (int i = 0; i < count; i++) { 663 View v = getPageAt(i); 664 if (v instanceof PagedViewGridLayout) { 665 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 666 mDirtyPageContent.set(i, true); 667 } 668 } 669 } 670 671 private void cancelAllTasks() { 672 // Clean up all the async tasks 673 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 674 while (iter.hasNext()) { 675 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 676 task.cancel(false); 677 iter.remove(); 678 } 679 } 680 681 public void setContentType(ContentType type) { 682 if (type == ContentType.Widgets) { 683 invalidatePageData(mNumAppsPages, true); 684 } else if (type == ContentType.Applications) { 685 invalidatePageData(0, true); 686 } 687 } 688 689 protected void snapToPage(int whichPage, int delta, int duration) { 690 super.snapToPage(whichPage, delta, duration); 691 updateCurrentTab(whichPage); 692 693 // Update the thread priorities given the direction lookahead 694 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 695 while (iter.hasNext()) { 696 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 697 int pageIndex = task.page + mNumAppsPages; 698 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 699 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 700 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 701 } else { 702 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 703 } 704 } 705 } 706 707 private void updateCurrentTab(int currentPage) { 708 AppsCustomizeTabHost tabHost = getTabHost(); 709 if (tabHost != null) { 710 String tag = tabHost.getCurrentTabTag(); 711 if (tag != null) { 712 if (currentPage >= mNumAppsPages && 713 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 714 tabHost.setCurrentTabFromContent(ContentType.Widgets); 715 } else if (currentPage < mNumAppsPages && 716 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 717 tabHost.setCurrentTabFromContent(ContentType.Applications); 718 } 719 } 720 } 721 } 722 723 /* 724 * Apps PagedView implementation 725 */ 726 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 727 int childCount = layout.getChildCount(); 728 for (int i = 0; i < childCount; ++i) { 729 layout.getChildAt(i).setVisibility(visibility); 730 } 731 } 732 private void setupPage(PagedViewCellLayout layout) { 733 layout.setCellCount(mCellCountX, mCellCountY); 734 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 735 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 736 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 737 738 // Note: We force a measure here to get around the fact that when we do layout calculations 739 // immediately after syncing, we don't have a proper width. That said, we already know the 740 // expected page width, so we can actually optimize by hiding all the TextView-based 741 // children that are expensive to measure, and let that happen naturally later. 742 setVisibilityOnChildren(layout, View.GONE); 743 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 744 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 745 layout.setMinimumWidth(getPageContentWidth()); 746 layout.measure(widthSpec, heightSpec); 747 setVisibilityOnChildren(layout, View.VISIBLE); 748 } 749 750 public void syncAppsPageItems(int page, boolean immediate) { 751 // ensure that we have the right number of items on the pages 752 int numCells = mCellCountX * mCellCountY; 753 int startIndex = page * numCells; 754 int endIndex = Math.min(startIndex + numCells, mApps.size()); 755 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 756 757 layout.removeAllViewsOnPage(); 758 ArrayList<Object> items = new ArrayList<Object>(); 759 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 760 for (int i = startIndex; i < endIndex; ++i) { 761 ApplicationInfo info = mApps.get(i); 762 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 763 R.layout.apps_customize_application, layout, false); 764 icon.applyFromApplicationInfo(info, true, this); 765 icon.setOnClickListener(this); 766 icon.setOnLongClickListener(this); 767 icon.setOnTouchListener(this); 768 icon.setOnKeyListener(this); 769 770 int index = i - startIndex; 771 int x = index % mCellCountX; 772 int y = index / mCellCountX; 773 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 774 775 items.add(info); 776 images.add(info.iconBitmap); 777 } 778 779 layout.createHardwareLayers(); 780 } 781 782 /** 783 * A helper to return the priority for loading of the specified widget page. 784 */ 785 private int getWidgetPageLoadPriority(int page) { 786 // If we are snapping to another page, use that index as the target page index 787 int toPage = mCurrentPage; 788 if (mNextPage > -1) { 789 toPage = mNextPage; 790 } 791 792 // We use the distance from the target page as an initial guess of priority, but if there 793 // are no pages of higher priority than the page specified, then bump up the priority of 794 // the specified page. 795 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 796 int minPageDiff = Integer.MAX_VALUE; 797 while (iter.hasNext()) { 798 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 799 minPageDiff = Math.abs(task.page + mNumAppsPages - toPage); 800 } 801 802 int rawPageDiff = Math.abs(page - toPage); 803 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 804 } 805 /** 806 * Return the appropriate thread priority for loading for a given page (we give the current 807 * page much higher priority) 808 */ 809 private int getThreadPriorityForPage(int page) { 810 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 811 int pageDiff = getWidgetPageLoadPriority(page); 812 if (pageDiff <= 0) { 813 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 814 } else if (pageDiff <= 1) { 815 return Process.THREAD_PRIORITY_LOWEST; 816 } else { 817 return Process.THREAD_PRIORITY_LOWEST; 818 } 819 } 820 private int getSleepForPage(int page) { 821 int pageDiff = getWidgetPageLoadPriority(page); 822 return Math.max(0, pageDiff * sPageSleepDelay); 823 } 824 /** 825 * Creates and executes a new AsyncTask to load a page of widget previews. 826 */ 827 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 828 int cellWidth, int cellHeight, int cellCountX) { 829 830 // Prune all tasks that are no longer needed 831 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 832 while (iter.hasNext()) { 833 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 834 int taskPage = task.page + mNumAppsPages; 835 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 836 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 837 task.cancel(false); 838 iter.remove(); 839 } else { 840 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 841 } 842 } 843 844 // We introduce a slight delay to order the loading of side pages so that we don't thrash 845 final int sleepMs = getSleepForPage(page + mNumAppsPages); 846 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 847 new AsyncTaskCallback() { 848 @Override 849 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 850 try { 851 try { 852 Thread.sleep(sleepMs); 853 } catch (Exception e) {} 854 loadWidgetPreviewsInBackground(task, data); 855 } finally { 856 if (task.isCancelled()) { 857 data.cleanup(true); 858 } 859 } 860 } 861 }, 862 new AsyncTaskCallback() { 863 @Override 864 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 865 try { 866 mRunningTasks.remove(task); 867 if (task.isCancelled()) return; 868 onSyncWidgetPageItems(data); 869 } finally { 870 data.cleanup(task.isCancelled()); 871 } 872 } 873 }); 874 875 // Ensure that the task is appropriately prioritized and runs in parallel 876 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 877 AsyncTaskPageData.Type.LoadWidgetPreviewData); 878 t.setThreadPriority(getThreadPriorityForPage(page + mNumAppsPages)); 879 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 880 mRunningTasks.add(t); 881 } 882 883 /* 884 * Widgets PagedView implementation 885 */ 886 private void setupPage(PagedViewGridLayout layout) { 887 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 888 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 889 890 // Note: We force a measure here to get around the fact that when we do layout calculations 891 // immediately after syncing, we don't have a proper width. 892 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 893 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 894 layout.setMinimumWidth(getPageContentWidth()); 895 layout.measure(widthSpec, heightSpec); 896 } 897 898 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 899 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 900 } 901 902 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 903 float scale, int multiplyColor) { 904 if (bitmap != null) { 905 Canvas c = new Canvas(bitmap); 906 c.scale(scale, scale); 907 Rect oldBounds = d.copyBounds(); 908 d.setBounds(x, y, x + w, y + h); 909 d.draw(c); 910 d.setBounds(oldBounds); // Restore the bounds 911 if (multiplyColor != 0xFFFFFFFF) { 912 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 913 } 914 c.setBitmap(null); 915 } 916 } 917 private Bitmap getShortcutPreview(ResolveInfo info) { 918 // Render the background 919 int offset = 0; 920 int bitmapSize = mAppIconSize; 921 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 922 923 // Render the icon 924 Drawable icon = mIconCache.getFullResIcon(info); 925 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 926 return preview; 927 } 928 929 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 930 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 931 // Load the preview image if possible 932 String packageName = provider.getPackageName(); 933 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 934 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 935 936 Drawable drawable = null; 937 if (previewImage != 0) { 938 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 939 if (drawable == null) { 940 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 941 Integer.toHexString(previewImage) + " for provider: " + provider); 942 } 943 } 944 945 int bitmapWidth; 946 int bitmapHeight; 947 boolean widgetPreviewExists = (drawable != null); 948 if (widgetPreviewExists) { 949 bitmapWidth = drawable.getIntrinsicWidth(); 950 bitmapHeight = drawable.getIntrinsicHeight(); 951 952 // Cap the size so widget previews don't appear larger than the actual widget 953 maxWidth = Math.min(maxWidth, mWidgetSpacingLayout.estimateCellWidth(cellHSpan)); 954 maxHeight = Math.min(maxHeight, mWidgetSpacingLayout.estimateCellHeight(cellVSpan)); 955 } else { 956 // Determine the size of the bitmap for the preview image we will generate 957 // TODO: This actually uses the apps customize cell layout params, where as we make want 958 // the Workspace params for more accuracy. 959 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 960 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 961 if (cellHSpan == cellVSpan) { 962 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 963 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 964 if (cellHSpan <= 1) { 965 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 966 } else { 967 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 968 } 969 } 970 } 971 972 float scale = 1f; 973 if (bitmapWidth > maxWidth) { 974 scale = maxWidth / (float) bitmapWidth; 975 } 976 if (bitmapHeight * scale > maxHeight) { 977 scale = maxHeight / (float) bitmapHeight; 978 } 979 if (scale != 1f) { 980 bitmapWidth = (int) (scale * bitmapWidth); 981 bitmapHeight = (int) (scale * bitmapHeight); 982 } 983 984 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 985 986 if (widgetPreviewExists) { 987 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 988 } else { 989 // Generate a preview image if we couldn't load one 990 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 991 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 992 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 993 if (cellHSpan != 1 || cellVSpan != 1) { 994 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 995 bitmapHeight); 996 } 997 998 // Draw the icon in the top left corner 999 try { 1000 Drawable icon = null; 1001 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1002 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1003 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1004 Resources resources = mLauncher.getResources(); 1005 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1006 1007 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1008 (int) (mAppIconSize * iconScale), 1009 (int) (mAppIconSize * iconScale)); 1010 } catch (Resources.NotFoundException e) {} 1011 } 1012 return preview; 1013 } 1014 1015 public void syncWidgetPageItems(final int page, final boolean immediate) { 1016 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1017 1018 // Calculate the dimensions of each cell we are giving to each widget 1019 final ArrayList<Object> items = new ArrayList<Object>(); 1020 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1021 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1022 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1023 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1024 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1025 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1026 1027 // Prepare the set of widgets to load previews for in the background 1028 int offset = page * numItemsPerPage; 1029 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1030 items.add(mWidgets.get(i)); 1031 } 1032 1033 // Prepopulate the pages with the other widget info, and fill in the previews later 1034 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1035 layout.setColumnCount(layout.getCellCountX()); 1036 for (int i = 0; i < items.size(); ++i) { 1037 Object rawInfo = items.get(i); 1038 PendingAddItemInfo createItemInfo = null; 1039 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1040 R.layout.apps_customize_widget, layout, false); 1041 if (rawInfo instanceof AppWidgetProviderInfo) { 1042 // Fill in the widget information 1043 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1044 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1045 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1046 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans); 1047 widget.setTag(createItemInfo); 1048 } else if (rawInfo instanceof ResolveInfo) { 1049 // Fill in the shortcuts information 1050 ResolveInfo info = (ResolveInfo) rawInfo; 1051 createItemInfo = new PendingAddItemInfo(); 1052 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1053 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1054 info.activityInfo.name); 1055 widget.applyFromResolveInfo(mPackageManager, info); 1056 widget.setTag(createItemInfo); 1057 } 1058 widget.setOnClickListener(this); 1059 widget.setOnLongClickListener(this); 1060 widget.setOnTouchListener(this); 1061 widget.setOnKeyListener(this); 1062 1063 // Layout each widget 1064 int ix = i % mWidgetCountX; 1065 int iy = i / mWidgetCountX; 1066 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1067 GridLayout.spec(iy, GridLayout.LEFT), 1068 GridLayout.spec(ix, GridLayout.TOP)); 1069 lp.width = cellWidth; 1070 lp.height = cellHeight; 1071 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1072 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1073 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1074 layout.addView(widget, lp); 1075 } 1076 1077 // wait until a call on onLayout to start loading, because 1078 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1079 // TODO: can we do a measure/layout immediately? 1080 layout.setOnLayoutListener(new Runnable() { 1081 public void run() { 1082 // Load the widget previews 1083 int maxPreviewWidth = cellWidth; 1084 int maxPreviewHeight = cellHeight; 1085 if (layout.getChildCount() > 0) { 1086 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1087 int[] maxSize = w.getPreviewSize(); 1088 maxPreviewWidth = maxSize[0]; 1089 maxPreviewHeight = maxSize[1]; 1090 } 1091 if (immediate) { 1092 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1093 maxPreviewWidth, maxPreviewHeight, null, null); 1094 loadWidgetPreviewsInBackground(null, data); 1095 onSyncWidgetPageItems(data); 1096 } else { 1097 prepareLoadWidgetPreviewsTask(page, items, 1098 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1099 } 1100 } 1101 }); 1102 } 1103 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1104 AsyncTaskPageData data) { 1105 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1106 // previews synchronously 1107 if (task != null) { 1108 // Ensure that this task starts running at the correct priority 1109 task.syncThreadPriority(); 1110 } 1111 1112 // Load each of the widget/shortcut previews 1113 ArrayList<Object> items = data.items; 1114 ArrayList<Bitmap> images = data.generatedImages; 1115 int count = items.size(); 1116 for (int i = 0; i < count; ++i) { 1117 if (task != null) { 1118 // Ensure we haven't been cancelled yet 1119 if (task.isCancelled()) break; 1120 // Before work on each item, ensure that this task is running at the correct 1121 // priority 1122 task.syncThreadPriority(); 1123 } 1124 1125 Object rawInfo = items.get(i); 1126 if (rawInfo instanceof AppWidgetProviderInfo) { 1127 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1128 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1129 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1130 cellSpans[0], cellSpans[1], data.maxImageWidth, data.maxImageHeight); 1131 images.add(b); 1132 } else if (rawInfo instanceof ResolveInfo) { 1133 // Fill in the shortcuts information 1134 ResolveInfo info = (ResolveInfo) rawInfo; 1135 images.add(getShortcutPreview(info)); 1136 } 1137 } 1138 } 1139 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1140 int page = data.page; 1141 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1142 1143 ArrayList<Object> items = data.items; 1144 int count = items.size(); 1145 for (int i = 0; i < count; ++i) { 1146 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1147 if (widget != null) { 1148 Bitmap preview = data.generatedImages.get(i); 1149 widget.applyPreview(new FastBitmapDrawable(preview), i); 1150 } 1151 } 1152 1153 layout.createHardwareLayer(); 1154 invalidate(); 1155 1156 // Update all thread priorities 1157 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1158 while (iter.hasNext()) { 1159 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1160 int pageIndex = task.page + mNumAppsPages; 1161 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1162 } 1163 } 1164 1165 @Override 1166 public void syncPages() { 1167 removeAllViews(); 1168 cancelAllTasks(); 1169 1170 Context context = getContext(); 1171 for (int j = 0; j < mNumWidgetPages; ++j) { 1172 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1173 mWidgetCountY); 1174 setupPage(layout); 1175 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1176 LayoutParams.MATCH_PARENT)); 1177 } 1178 1179 for (int i = 0; i < mNumAppsPages; ++i) { 1180 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1181 setupPage(layout); 1182 addView(layout); 1183 } 1184 } 1185 1186 @Override 1187 public void syncPageItems(int page, boolean immediate) { 1188 if (page < mNumAppsPages) { 1189 syncAppsPageItems(page, immediate); 1190 } else { 1191 syncWidgetPageItems(page - mNumAppsPages, immediate); 1192 } 1193 } 1194 1195 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1196 // it is in the z-order. This is important to insure touch events are handled correctly. 1197 View getPageAt(int index) { 1198 return getChildAt(getChildCount() - index - 1); 1199 } 1200 1201 @Override 1202 protected int indexToPage(int index) { 1203 return getChildCount() - index - 1; 1204 } 1205 1206 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1207 @Override 1208 protected void screenScrolled(int screenCenter) { 1209 super.screenScrolled(screenCenter); 1210 1211 for (int i = 0; i < getChildCount(); i++) { 1212 View v = getPageAt(i); 1213 if (v != null) { 1214 float scrollProgress = getScrollProgress(screenCenter, v, i); 1215 1216 float interpolatedProgress = 1217 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1218 float scale = (1 - interpolatedProgress) + 1219 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1220 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1221 1222 float alpha; 1223 1224 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1225 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1226 1 - Math.abs(scrollProgress)) : 1.0f; 1227 } else { 1228 // On large screens we need to fade the page as it nears its leftmost position 1229 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1230 } 1231 1232 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1233 int pageWidth = v.getMeasuredWidth(); 1234 int pageHeight = v.getMeasuredHeight(); 1235 1236 if (PERFORM_OVERSCROLL_ROTATION) { 1237 if (i == 0 && scrollProgress < 0) { 1238 // Overscroll to the left 1239 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1240 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1241 scale = 1.0f; 1242 alpha = 1.0f; 1243 // On the first page, we don't want the page to have any lateral motion 1244 translationX = 0; 1245 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1246 // Overscroll to the right 1247 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1248 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1249 scale = 1.0f; 1250 alpha = 1.0f; 1251 // On the last page, we don't want the page to have any lateral motion. 1252 translationX = 0; 1253 } else { 1254 v.setPivotY(pageHeight / 2.0f); 1255 v.setPivotX(pageWidth / 2.0f); 1256 v.setRotationY(0f); 1257 } 1258 } 1259 1260 v.setTranslationX(translationX); 1261 v.setScaleX(scale); 1262 v.setScaleY(scale); 1263 v.setAlpha(alpha); 1264 1265 // If the view has 0 alpha, we set it to be invisible so as to prevent 1266 // it from accepting touches 1267 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1268 v.setVisibility(INVISIBLE); 1269 } else if (v.getVisibility() != VISIBLE) { 1270 v.setVisibility(VISIBLE); 1271 } 1272 } 1273 } 1274 } 1275 1276 protected void overScroll(float amount) { 1277 acceleratedOverScroll(amount); 1278 } 1279 1280 /** 1281 * Used by the parent to get the content width to set the tab bar to 1282 * @return 1283 */ 1284 public int getPageContentWidth() { 1285 return mContentWidth; 1286 } 1287 1288 @Override 1289 protected void onPageEndMoving() { 1290 super.onPageEndMoving(); 1291 1292 // We reset the save index when we change pages so that it will be recalculated on next 1293 // rotation 1294 mSaveInstanceStateItemIndex = -1; 1295 } 1296 1297 /* 1298 * AllAppsView implementation 1299 */ 1300 @Override 1301 public void setup(Launcher launcher, DragController dragController) { 1302 mLauncher = launcher; 1303 mDragController = dragController; 1304 } 1305 @Override 1306 public void zoom(float zoom, boolean animate) { 1307 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1308 } 1309 @Override 1310 public boolean isVisible() { 1311 return (getVisibility() == VISIBLE); 1312 } 1313 @Override 1314 public boolean isAnimating() { 1315 return false; 1316 } 1317 @Override 1318 public void setApps(ArrayList<ApplicationInfo> list) { 1319 mApps = list; 1320 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1321 updatePageCounts(); 1322 1323 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1324 // request a layout to do this test and invalidate the page data when ready. 1325 if (testDataReady()) requestLayout(); 1326 } 1327 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1328 // We add it in place, in alphabetical order 1329 int count = list.size(); 1330 for (int i = 0; i < count; ++i) { 1331 ApplicationInfo info = list.get(i); 1332 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1333 if (index < 0) { 1334 mApps.add(-(index + 1), info); 1335 } 1336 } 1337 } 1338 @Override 1339 public void addApps(ArrayList<ApplicationInfo> list) { 1340 addAppsWithoutInvalidate(list); 1341 updatePageCounts(); 1342 invalidatePageData(); 1343 } 1344 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1345 ComponentName removeComponent = item.intent.getComponent(); 1346 int length = list.size(); 1347 for (int i = 0; i < length; ++i) { 1348 ApplicationInfo info = list.get(i); 1349 if (info.intent.getComponent().equals(removeComponent)) { 1350 return i; 1351 } 1352 } 1353 return -1; 1354 } 1355 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1356 // loop through all the apps and remove apps that have the same component 1357 int length = list.size(); 1358 for (int i = 0; i < length; ++i) { 1359 ApplicationInfo info = list.get(i); 1360 int removeIndex = findAppByComponent(mApps, info); 1361 if (removeIndex > -1) { 1362 mApps.remove(removeIndex); 1363 } 1364 } 1365 } 1366 @Override 1367 public void removeApps(ArrayList<ApplicationInfo> list) { 1368 removeAppsWithoutInvalidate(list); 1369 updatePageCounts(); 1370 invalidatePageData(); 1371 } 1372 @Override 1373 public void updateApps(ArrayList<ApplicationInfo> list) { 1374 // We remove and re-add the updated applications list because it's properties may have 1375 // changed (ie. the title), and this will ensure that the items will be in their proper 1376 // place in the list. 1377 removeAppsWithoutInvalidate(list); 1378 addAppsWithoutInvalidate(list); 1379 updatePageCounts(); 1380 1381 invalidatePageData(); 1382 } 1383 1384 @Override 1385 public void reset() { 1386 // If we have reset, then we should not continue to restore the previous state 1387 mSaveInstanceStateItemIndex = -1; 1388 1389 AppsCustomizeTabHost tabHost = getTabHost(); 1390 String tag = tabHost.getCurrentTabTag(); 1391 if (tag != null) { 1392 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1393 tabHost.setCurrentTabFromContent(ContentType.Applications); 1394 } 1395 } 1396 1397 if (mCurrentPage != 0) { 1398 invalidatePageData(0); 1399 } 1400 } 1401 1402 private AppsCustomizeTabHost getTabHost() { 1403 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1404 } 1405 1406 @Override 1407 public void dumpState() { 1408 // TODO: Dump information related to current list of Applications, Widgets, etc. 1409 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1410 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1411 } 1412 1413 private void dumpAppWidgetProviderInfoList(String tag, String label, 1414 ArrayList<Object> list) { 1415 Log.d(tag, label + " size=" + list.size()); 1416 for (Object i: list) { 1417 if (i instanceof AppWidgetProviderInfo) { 1418 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1419 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1420 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1421 + " initialLayout=" + info.initialLayout 1422 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1423 } else if (i instanceof ResolveInfo) { 1424 ResolveInfo info = (ResolveInfo) i; 1425 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1426 + info.icon); 1427 } 1428 } 1429 } 1430 1431 @Override 1432 public void surrender() { 1433 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1434 // should stop this now. 1435 1436 // Stop all background tasks 1437 cancelAllTasks(); 1438 } 1439 1440 @Override 1441 public void iconPressed(PagedViewIcon icon) { 1442 // Reset the previously pressed icon and store a reference to the pressed icon so that 1443 // we can reset it on return to Launcher (in Launcher.onResume()) 1444 if (mPressedIcon != null) { 1445 mPressedIcon.resetDrawableState(); 1446 } 1447 mPressedIcon = icon; 1448 } 1449 1450 public void resetDrawableState() { 1451 if (mPressedIcon != null) { 1452 mPressedIcon.resetDrawableState(); 1453 mPressedIcon = null; 1454 } 1455 } 1456 1457 /* 1458 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1459 * widget previews in the background with the AsyncTasks. 1460 */ 1461 final static int sLookBehindPageCount = 2; 1462 final static int sLookAheadPageCount = 2; 1463 protected int getAssociatedLowerPageBound(int page) { 1464 final int count = getChildCount(); 1465 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1466 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1467 return windowMinIndex; 1468 } 1469 protected int getAssociatedUpperPageBound(int page) { 1470 final int count = getChildCount(); 1471 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1472 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1473 count - 1); 1474 return windowMaxIndex; 1475 } 1476 1477 @Override 1478 protected String getCurrentPageDescription() { 1479 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1480 int stringId = R.string.default_scroll_format; 1481 int count = 0; 1482 1483 if (page < mNumAppsPages) { 1484 stringId = R.string.apps_customize_apps_scroll_format; 1485 count = mNumAppsPages; 1486 } else { 1487 page -= mNumAppsPages; 1488 stringId = R.string.apps_customize_widgets_scroll_format; 1489 count = mNumWidgetPages; 1490 } 1491 1492 return String.format(mContext.getString(stringId), page + 1, count); 1493 } 1494} 1495