AppsCustomizePagedView.java revision db1138b4efae89a3b5833547958a3606e5408a71
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.ActivityInfo; 28import android.content.pm.PackageManager; 29import android.content.pm.ResolveInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.graphics.Bitmap; 34import android.graphics.Bitmap.Config; 35import android.graphics.Canvas; 36import android.graphics.Rect; 37import android.graphics.drawable.Drawable; 38import android.os.AsyncTask; 39import android.os.Process; 40import android.util.AttributeSet; 41import android.util.Log; 42import android.view.LayoutInflater; 43import android.view.View; 44import android.view.ViewGroup; 45import android.view.animation.AccelerateInterpolator; 46import android.widget.GridLayout; 47import android.widget.ImageView; 48import android.widget.TextView; 49import android.widget.Toast; 50 51import com.android.launcher.R; 52import com.android.launcher2.DropTarget.DragObject; 53 54import java.util.ArrayList; 55import java.util.Collections; 56import java.util.Iterator; 57import java.util.List; 58 59/** 60 * A simple callback interface which also provides the results of the task. 61 */ 62interface AsyncTaskCallback { 63 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 64} 65 66/** 67 * The data needed to perform either of the custom AsyncTasks. 68 */ 69class AsyncTaskPageData { 70 enum Type { 71 LoadWidgetPreviewData, 72 LoadHolographicIconsData 73 } 74 75 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 76 AsyncTaskCallback postR) { 77 page = p; 78 items = l; 79 sourceImages = si; 80 generatedImages = new ArrayList<Bitmap>(); 81 cellWidth = cellHeight = -1; 82 doInBackgroundCallback = bgR; 83 postExecuteCallback = postR; 84 } 85 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, int ccx, AsyncTaskCallback bgR, 86 AsyncTaskCallback postR) { 87 page = p; 88 items = l; 89 generatedImages = new ArrayList<Bitmap>(); 90 cellWidth = cw; 91 cellHeight = ch; 92 cellCountX = ccx; 93 doInBackgroundCallback = bgR; 94 postExecuteCallback = postR; 95 } 96 int page; 97 ArrayList<Object> items; 98 ArrayList<Bitmap> sourceImages; 99 ArrayList<Bitmap> generatedImages; 100 int cellWidth; 101 int cellHeight; 102 int cellCountX; 103 AsyncTaskCallback doInBackgroundCallback; 104 AsyncTaskCallback postExecuteCallback; 105} 106 107/** 108 * A generic template for an async task used in AppsCustomize. 109 */ 110class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 111 AppsCustomizeAsyncTask(int p, AppsCustomizePagedView.ContentType t, AsyncTaskPageData.Type ty) { 112 page = p; 113 pageContentType = t; 114 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 115 dataType = ty; 116 } 117 @Override 118 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 119 if (params.length != 1) return null; 120 // Load each of the widget previews in the background 121 params[0].doInBackgroundCallback.run(this, params[0]); 122 return params[0]; 123 } 124 @Override 125 protected void onPostExecute(AsyncTaskPageData result) { 126 // All the widget previews are loaded, so we can just callback to inflate the page 127 result.postExecuteCallback.run(this, result); 128 } 129 130 void setThreadPriority(int p) { 131 threadPriority = p; 132 } 133 void syncThreadPriority() { 134 Process.setThreadPriority(threadPriority); 135 } 136 137 // The page that this async task is associated with 138 AsyncTaskPageData.Type dataType; 139 int page; 140 AppsCustomizePagedView.ContentType pageContentType; 141 int threadPriority; 142} 143 144/** 145 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 146 */ 147public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 148 AllAppsView, View.OnClickListener, DragSource { 149 static final String LOG_TAG = "AppsCustomizePagedView"; 150 151 /** 152 * The different content types that this paged view can show. 153 */ 154 public enum ContentType { 155 Applications, 156 Widgets 157 } 158 159 // Refs 160 private Launcher mLauncher; 161 private DragController mDragController; 162 private final LayoutInflater mLayoutInflater; 163 private final PackageManager mPackageManager; 164 165 // Content 166 private ContentType mContentType; 167 private ArrayList<ApplicationInfo> mApps; 168 private ArrayList<Object> mWidgets; 169 private ArrayList<Object> mShortcuts; 170 171 // Caching 172 private Canvas mCanvas; 173 private Drawable mDefaultWidgetBackground; 174 private IconCache mIconCache; 175 176 // Dimens 177 private int mContentWidth; 178 private int mAppIconSize; 179 private int mMaxWidgetSpan, mMinWidgetSpan; 180 private int mWidgetCountX, mWidgetCountY; 181 private int mWidgetWidthGap, mWidgetHeightGap; 182 private int mShortcutCountX, mShortcutCountY; 183 private int mShortcutWidthGap, mShortcutHeightGap; 184 private final int mWidgetPreviewIconPaddedDimension; 185 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 186 private PagedViewCellLayout mWidgetSpacingLayout; 187 188 // Previews & outlines 189 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 190 private HolographicOutlineHelper mHolographicOutlineHelper; 191 192 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 193 super(context, attrs); 194 mLayoutInflater = LayoutInflater.from(context); 195 mPackageManager = context.getPackageManager(); 196 mContentType = ContentType.Applications; 197 mApps = new ArrayList<ApplicationInfo>(); 198 mWidgets = new ArrayList<Object>(); 199 mShortcuts = new ArrayList<Object>(); 200 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 201 mHolographicOutlineHelper = new HolographicOutlineHelper(); 202 mCanvas = new Canvas(); 203 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 204 205 // Save the default widget preview background 206 Resources resources = context.getResources(); 207 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview); 208 mAppIconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 209 210 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PagedView, 0, 0); 211 // TODO-APPS_CUSTOMIZE: remove these unnecessary attrs after 212 mCellCountX = a.getInt(R.styleable.PagedView_cellCountX, 6); 213 mCellCountY = a.getInt(R.styleable.PagedView_cellCountY, 4); 214 a.recycle(); 215 a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 216 mWidgetWidthGap = 217 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 218 mWidgetHeightGap = 219 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 220 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 221 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 222 a.recycle(); 223 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 224 225 // The max widget span is the length N, such that NxN is the largest bounds that the widget 226 // preview can be before applying the widget scaling 227 mMinWidgetSpan = 1; 228 mMaxWidgetSpan = 3; 229 230 // The padding on the non-matched dimension for the default widget preview icons 231 // (top + bottom) 232 mWidgetPreviewIconPaddedDimension = 233 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 234 } 235 236 @Override 237 protected void init() { 238 super.init(); 239 mCenterPagesVertically = false; 240 241 Context context = getContext(); 242 Resources r = context.getResources(); 243 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 244 } 245 246 @Override 247 protected void onWallpaperTap(android.view.MotionEvent ev) { 248 mLauncher.showWorkspace(true); 249 } 250 251 /** 252 * This differs from isDataReady as this is the test done if isDataReady is not set. 253 */ 254 private boolean testDataReady() { 255 // We only do this test once, and we default to the Applications page, so we only really 256 // have to wait for there to be apps. 257 return !mApps.isEmpty(); 258 } 259 260 protected void onDataReady(int width, int height) { 261 // Note that we transpose the counts in portrait so that we get a similar layout 262 boolean isLandscape = getResources().getConfiguration().orientation == 263 Configuration.ORIENTATION_LANDSCAPE; 264 int maxCellCountX = Integer.MAX_VALUE; 265 int maxCellCountY = Integer.MAX_VALUE; 266 if (LauncherApplication.isScreenLarge()) { 267 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 268 LauncherModel.getCellCountY()); 269 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 270 LauncherModel.getCellCountX()); 271 } 272 273 // Now that the data is ready, we can calculate the content width, the number of cells to 274 // use for each page 275 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 276 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 277 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 278 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 279 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 280 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 281 mWidgetCountX = Math.max(1, (int) Math.round(mCellCountX / 2f)); 282 mWidgetCountY = Math.max(1, (int) Math.round(mCellCountY / 3f)); 283 mShortcutCountX = Math.max(1, (int) Math.round(mCellCountX / 2f)); 284 mShortcutCountY = Math.max(1, (int) Math.round(mCellCountY / 2f)); 285 286 // Force a measure to update recalculate the gaps 287 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 288 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 289 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 290 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 291 292 invalidatePageData(); 293 } 294 295 @Override 296 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 297 int width = MeasureSpec.getSize(widthMeasureSpec); 298 int height = MeasureSpec.getSize(heightMeasureSpec); 299 if (!isDataReady()) { 300 if (testDataReady()) { 301 setDataIsReady(); 302 setMeasuredDimension(width, height); 303 onDataReady(width, height); 304 } 305 } 306 307 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 308 } 309 310 /** Removes and returns the ResolveInfo with the specified ComponentName */ 311 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 312 ComponentName cn) { 313 Iterator<ResolveInfo> iter = list.iterator(); 314 while (iter.hasNext()) { 315 ResolveInfo rinfo = iter.next(); 316 ActivityInfo info = rinfo.activityInfo; 317 ComponentName c = new ComponentName(info.packageName, info.name); 318 if (c.equals(cn)) { 319 iter.remove(); 320 return rinfo; 321 } 322 } 323 return null; 324 } 325 326 public void onPackagesUpdated() { 327 // Get the list of widgets and shortcuts 328 boolean wasEmpty = mWidgets.isEmpty() && mShortcuts.isEmpty(); 329 mWidgets.clear(); 330 mShortcuts.clear(); 331 List<AppWidgetProviderInfo> widgets = 332 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 333 Collections.sort(widgets, 334 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 335 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 336 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 337 Collections.sort(shortcuts, 338 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 339 mWidgets.addAll(widgets); 340 mShortcuts.addAll(shortcuts); 341 342 if (wasEmpty) { 343 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 344 // a layout to do this test and invalidate the page data when ready. 345 if (testDataReady()) requestLayout(); 346 } else { 347 invalidatePageData(); 348 } 349 } 350 351 @Override 352 public void onClick(View v) { 353 if (v instanceof PagedViewIcon) { 354 // Animate some feedback to the click 355 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 356 animateClickFeedback(v, new Runnable() { 357 @Override 358 public void run() { 359 mLauncher.startActivitySafely(appInfo.intent, appInfo); 360 } 361 }); 362 } else if (v instanceof PagedViewWidget) { 363 // Let the user know that they have to long press to add a widget 364 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 365 Toast.LENGTH_SHORT).show(); 366 367 // Create a little animation to show that the widget can move 368 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 369 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 370 AnimatorSet bounce = new AnimatorSet(); 371 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 372 tyuAnim.setDuration(125); 373 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 374 tydAnim.setDuration(100); 375 bounce.play(tyuAnim).before(tydAnim); 376 bounce.setInterpolator(new AccelerateInterpolator()); 377 bounce.start(); 378 } 379 } 380 381 /* 382 * PagedViewWithDraggableItems implementation 383 */ 384 @Override 385 protected void determineDraggingStart(android.view.MotionEvent ev) { 386 // Disable dragging by pulling an app down for now. 387 } 388 private void beginDraggingApplication(View v) { 389 // Make a copy of the ApplicationInfo 390 ApplicationInfo appInfo = new ApplicationInfo((ApplicationInfo) v.getTag()); 391 392 // Compose the drag image (top compound drawable, index is 1) 393 final TextView tv = (TextView) v; 394 final Drawable icon = tv.getCompoundDrawables()[1]; 395 Bitmap b = Bitmap.createBitmap(v.getWidth(), v.getHeight(), 396 Bitmap.Config.ARGB_8888); 397 mCanvas.setBitmap(b); 398 mCanvas.save(); 399 mCanvas.translate((v.getWidth() - icon.getIntrinsicWidth()) / 2, v.getPaddingTop()); 400 icon.draw(mCanvas); 401 mCanvas.restore(); 402 403 // Compose the visible rect of the drag image 404 Rect dragRect = null; 405 if (v instanceof TextView) { 406 int top = v.getPaddingTop(); 407 int left = (b.getWidth() - mAppIconSize) / 2; 408 int right = left + mAppIconSize; 409 int bottom = top + mAppIconSize; 410 dragRect = new Rect(left, top, right, bottom); 411 } 412 413 // Start the drag 414 mLauncher.lockScreenOrientation(); 415 mLauncher.getWorkspace().onDragStartedWithItemSpans(1, 1, b); 416 mDragController.startDrag(v, b, this, appInfo, DragController.DRAG_ACTION_COPY, dragRect); 417 b.recycle(); 418 } 419 private void beginDraggingWidget(View v) { 420 // Get the widget preview as the drag representation 421 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 422 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 423 424 // Compose the drag image 425 Bitmap b; 426 Drawable preview = image.getDrawable(); 427 int w = preview.getIntrinsicWidth(); 428 int h = preview.getIntrinsicHeight(); 429 if (createItemInfo instanceof PendingAddWidgetInfo) { 430 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 431 int[] spanXY = CellLayout.rectToCell(getResources(), 432 createWidgetInfo.minWidth, createWidgetInfo.minHeight, null); 433 createItemInfo.spanX = spanXY[0]; 434 createItemInfo.spanY = spanXY[1]; 435 436 b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 437 renderDrawableToBitmap(preview, b, 0, 0, w, h, 1, 1); 438 } else { 439 // Workaround for the fact that we don't keep the original ResolveInfo associated with 440 // the shortcut around. To get the icon, we just render the preview image (which has 441 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 442 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 443 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 444 mCanvas.setBitmap(b); 445 mCanvas.save(); 446 preview.draw(mCanvas); 447 mCanvas.restore(); 448 createItemInfo.spanX = createItemInfo.spanY = 1; 449 } 450 451 // Start the drag 452 mLauncher.lockScreenOrientation(); 453 mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, 454 createItemInfo.spanY, b); 455 mDragController.startDrag(image, b, this, createItemInfo, 456 DragController.DRAG_ACTION_COPY, null); 457 b.recycle(); 458 } 459 @Override 460 protected boolean beginDragging(View v) { 461 if (!super.beginDragging(v)) return false; 462 463 464 if (v instanceof PagedViewIcon) { 465 beginDraggingApplication(v); 466 } else if (v instanceof PagedViewWidget) { 467 beginDraggingWidget(v); 468 } 469 470 // Go into spring loaded mode 471 int currentPageIndex = mLauncher.getWorkspace().getCurrentPage(); 472 CellLayout currentPage = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPageIndex); 473 mLauncher.enterSpringLoadedDragMode(currentPage); 474 return true; 475 } 476 private void endDragging(boolean success) { 477 mLauncher.exitSpringLoadedDragMode(); 478 mLauncher.getWorkspace().onDragStopped(success); 479 mLauncher.unlockScreenOrientation(); 480 481 } 482 483 /* 484 * DragSource implementation 485 */ 486 @Override 487 public void onDragViewVisible() {} 488 @Override 489 public void onDropCompleted(View target, DragObject d, boolean success) { 490 endDragging(success); 491 492 // Display an error message if the drag failed due to there not being enough space on the 493 // target layout we were dropping on. 494 if (!success) { 495 boolean showOutOfSpaceMessage = false; 496 if (target instanceof Workspace) { 497 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 498 Workspace workspace = (Workspace) target; 499 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 500 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 501 if (layout != null) { 502 layout.calculateSpans(itemInfo); 503 showOutOfSpaceMessage = 504 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 505 } 506 } 507 // TODO-APPS_CUSTOMIZE: We need to handle this for folders as well later. 508 if (showOutOfSpaceMessage) { 509 mLauncher.showOutOfSpaceMessage(); 510 } 511 } 512 } 513 514 public void setContentType(ContentType type) { 515 mContentType = type; 516 setCurrentPage(0); 517 invalidatePageData(); 518 } 519 520 public boolean isContentType(ContentType type) { 521 return (mContentType == type); 522 } 523 524 /* 525 * Apps PagedView implementation 526 */ 527 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 528 int childCount = layout.getChildCount(); 529 for (int i = 0; i < childCount; ++i) { 530 layout.getChildAt(i).setVisibility(visibility); 531 } 532 } 533 private void setupPage(PagedViewCellLayout layout) { 534 layout.setCellCount(mCellCountX, mCellCountY); 535 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 536 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 537 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 538 539 // Note: We force a measure here to get around the fact that when we do layout calculations 540 // immediately after syncing, we don't have a proper width. That said, we already know the 541 // expected page width, so we can actually optimize by hiding all the TextView-based 542 // children that are expensive to measure, and let that happen naturally later. 543 setVisibilityOnChildren(layout, View.GONE); 544 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 545 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 546 layout.setMinimumWidth(getPageContentWidth()); 547 layout.measure(widthSpec, heightSpec); 548 setVisibilityOnChildren(layout, View.VISIBLE); 549 } 550 public void syncAppsPages() { 551 // Ensure that we have the right number of pages 552 Context context = getContext(); 553 int numPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 554 for (int i = 0; i < numPages; ++i) { 555 PagedViewCellLayout layout = new PagedViewCellLayout(context); 556 setupPage(layout); 557 addView(layout); 558 } 559 } 560 public void syncAppsPageItems(int page) { 561 // ensure that we have the right number of items on the pages 562 int numPages = getPageCount(); 563 int numCells = mCellCountX * mCellCountY; 564 int startIndex = page * numCells; 565 int endIndex = Math.min(startIndex + numCells, mApps.size()); 566 PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page); 567 568 layout.removeAllViewsOnPage(); 569 ArrayList<Object> items = new ArrayList<Object>(); 570 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 571 for (int i = startIndex; i < endIndex; ++i) { 572 ApplicationInfo info = mApps.get(i); 573 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 574 R.layout.apps_customize_application, layout, false); 575 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 576 icon.setOnClickListener(this); 577 icon.setOnLongClickListener(this); 578 icon.setOnTouchListener(this); 579 580 int index = i - startIndex; 581 int x = index % mCellCountX; 582 int y = index / mCellCountX; 583 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 584 585 items.add(info); 586 images.add(info.iconBitmap); 587 } 588 589 // Create the hardware layers 590 layout.allowHardwareLayerCreation(); 591 layout.createHardwareLayers(); 592 593 prepareGenerateHoloOutlinesTask(page, items, images); 594 } 595 596 /** 597 * Return the appropriate thread priority for loading for a given page (we give the current 598 * page much higher priority) 599 */ 600 private int getThreadPriorityForPage(int page) { 601 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 602 int pageDiff = Math.abs(page - mCurrentPage); 603 if (pageDiff <= 0) { 604 // return Process.THREAD_PRIORITY_DEFAULT; 605 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 606 } else if (pageDiff <= 1) { 607 // return Process.THREAD_PRIORITY_BACKGROUND; 608 return Process.THREAD_PRIORITY_DEFAULT; 609 } else { 610 // return Process.THREAD_PRIORITY_LOWEST; 611 return Process.THREAD_PRIORITY_DEFAULT; 612 } 613 } 614 /** 615 * Creates and executes a new AsyncTask to load a page of widget previews. 616 */ 617 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 618 int cellWidth, int cellHeight, int cellCountX) { 619 // Prune all tasks that are no longer needed 620 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 621 while (iter.hasNext()) { 622 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 623 int taskPage = task.page; 624 if ((taskPage == page) || 625 taskPage < getAssociatedLowerPageBound(mCurrentPage) || 626 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 627 task.cancel(false); 628 iter.remove(); 629 } else { 630 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 631 } 632 } 633 634 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 635 cellCountX, new AsyncTaskCallback() { 636 @Override 637 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 638 // Ensure that this task starts running at the correct priority 639 task.syncThreadPriority(); 640 641 // Load each of the widget/shortcut previews 642 ArrayList<Object> items = data.items; 643 ArrayList<Bitmap> images = data.generatedImages; 644 int count = items.size(); 645 int cellWidth = data.cellWidth; 646 int cellHeight = data.cellHeight; 647 for (int i = 0; i < count && !task.isCancelled(); ++i) { 648 // Before work on each item, ensure that this task is running at the correct 649 // priority 650 task.syncThreadPriority(); 651 652 Object rawInfo = items.get(i); 653 if (rawInfo instanceof AppWidgetProviderInfo) { 654 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 655 int[] cellSpans = CellLayout.rectToCell(getResources(), 656 info.minWidth, info.minHeight, null); 657 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 658 cellWidth, cellHeight)); 659 } else if (rawInfo instanceof ResolveInfo) { 660 // Fill in the shortcuts information 661 ResolveInfo info = (ResolveInfo) rawInfo; 662 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 663 } 664 } 665 } 666 }, 667 new AsyncTaskCallback() { 668 @Override 669 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 670 mRunningTasks.remove(task); 671 if (task.isCancelled()) return; 672 if (task.page > getPageCount()) return; 673 if (task.pageContentType != mContentType) return; 674 onSyncWidgetPageItems(data); 675 } 676 }); 677 678 // Ensure that the task is appropriately prioritized and runs in parallel 679 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, mContentType, 680 AsyncTaskPageData.Type.LoadWidgetPreviewData); 681 t.setThreadPriority(getThreadPriorityForPage(page)); 682 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 683 mRunningTasks.add(t); 684 } 685 /** 686 * Creates and executes a new AsyncTask to load the outlines for a page of content. 687 */ 688 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 689 ArrayList<Bitmap> images) { 690 // Prune old tasks for this page 691 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 692 while (iter.hasNext()) { 693 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 694 int taskPage = task.page; 695 if ((taskPage == page) && 696 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 697 task.cancel(false); 698 iter.remove(); 699 } 700 } 701 702 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 703 new AsyncTaskCallback() { 704 @Override 705 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 706 // Ensure that this task starts running at the correct priority 707 task.syncThreadPriority(); 708 709 ArrayList<Bitmap> images = data.generatedImages; 710 ArrayList<Bitmap> srcImages = data.sourceImages; 711 int count = srcImages.size(); 712 Canvas c = new Canvas(); 713 for (int i = 0; i < count && !task.isCancelled(); ++i) { 714 // Before work on each item, ensure that this task is running at the correct 715 // priority 716 task.syncThreadPriority(); 717 718 Bitmap b = srcImages.get(i); 719 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 720 Bitmap.Config.ARGB_8888); 721 722 c.setBitmap(outline); 723 c.save(); 724 c.drawBitmap(b, 0, 0, null); 725 c.restore(); 726 727 images.add(outline); 728 } 729 } 730 }, 731 new AsyncTaskCallback() { 732 @Override 733 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 734 mRunningTasks.remove(task); 735 if (task.isCancelled()) return; 736 if (task.page > getPageCount()) return; 737 if (task.pageContentType != mContentType) return; 738 onHolographicPageItemsLoaded(data); 739 } 740 }); 741 742 // Ensure that the outline task always runs in the background, serially 743 AppsCustomizeAsyncTask t = 744 new AppsCustomizeAsyncTask(page, mContentType, 745 AsyncTaskPageData.Type.LoadHolographicIconsData); 746 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 747 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 748 mRunningTasks.add(t); 749 } 750 751 /* 752 * Widgets PagedView implementation 753 */ 754 private void setupPage(PagedViewGridLayout layout) { 755 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 756 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 757 758 // Note: We force a measure here to get around the fact that when we do layout calculations 759 // immediately after syncing, we don't have a proper width. That said, we already know the 760 // expected page width, so we can actually optimize by hiding all the TextView-based 761 // children that are expensive to measure, and let that happen naturally later. 762 setVisibilityOnChildren(layout, View.GONE); 763 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 764 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 765 layout.setMinimumWidth(getPageContentWidth()); 766 layout.measure(widthSpec, heightSpec); 767 setVisibilityOnChildren(layout, View.VISIBLE); 768 } 769 private synchronized void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 770 float scaleX, float scaleY) { 771 if (bitmap != null) { 772 Canvas c = new Canvas(bitmap); 773 c.scale(scaleX, scaleY); 774 Rect oldBounds = d.copyBounds(); 775 d.setBounds(x, y, x + w, y + h); 776 d.draw(c); 777 d.setBounds(oldBounds); // Restore the bounds 778 } 779 } 780 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 781 // Render the icon 782 Bitmap preview = Bitmap.createBitmap(cellWidth, mAppIconSize, Config.ARGB_8888); 783 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 784 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize, 1f, 1f); 785 return preview; 786 } 787 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 788 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 789 790 // Calculate the size of the drawable 791 cellHSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellHSpan)); 792 cellVSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellVSpan)); 793 int expectedWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 794 int expectedHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 795 796 // Scale down the bitmap to fit the space 797 float widgetPreviewScale = (float) cellWidth / expectedWidth; 798 expectedWidth = (int) (widgetPreviewScale * expectedWidth); 799 expectedHeight = (int) (widgetPreviewScale * expectedHeight); 800 801 // Load the preview image if possible 802 String packageName = info.provider.getPackageName(); 803 Drawable drawable = null; 804 Bitmap preview = null; 805 if (info.previewImage != 0) { 806 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 807 if (drawable == null) { 808 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 809 + " for provider: " + info.provider); 810 } else { 811 // Scale down the preview to the dimensions we want 812 int imageWidth = drawable.getIntrinsicWidth(); 813 int imageHeight = drawable.getIntrinsicHeight(); 814 float aspect = (float) imageWidth / imageHeight; 815 int newWidth = imageWidth; 816 int newHeight = imageHeight; 817 if (aspect > 1f) { 818 newWidth = expectedWidth; 819 newHeight = (int) (imageHeight * ((float) expectedWidth / imageWidth)); 820 } else { 821 newHeight = expectedHeight; 822 newWidth = (int) (imageWidth * ((float) expectedHeight / imageHeight)); 823 } 824 825 preview = Bitmap.createBitmap(newWidth, newHeight, Config.ARGB_8888); 826 renderDrawableToBitmap(drawable, preview, 0, 0, newWidth, newHeight, 1f, 1f); 827 } 828 } 829 830 // Generate a preview image if we couldn't load one 831 if (drawable == null) { 832 Resources resources = mLauncher.getResources(); 833 834 // Specify the dimensions of the bitmap 835 if (info.minWidth >= info.minHeight) { 836 expectedWidth = cellWidth; 837 expectedHeight = mWidgetPreviewIconPaddedDimension; 838 } else { 839 // Note that in vertical widgets, we might not have enough space due to the text 840 // label, so be conservative and use the width as a height bound 841 expectedWidth = mWidgetPreviewIconPaddedDimension; 842 expectedHeight = cellWidth; 843 } 844 845 preview = Bitmap.createBitmap(expectedWidth, expectedHeight, Config.ARGB_8888); 846 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, expectedWidth, 847 expectedHeight, 1f,1f); 848 849 // Draw the icon in the top left corner 850 try { 851 Drawable icon = null; 852 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 853 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 854 855 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 856 renderDrawableToBitmap(icon, preview, offset, offset, 857 mAppIconSize, mAppIconSize, 1f, 1f); 858 } catch (Resources.NotFoundException e) {} 859 } 860 return preview; 861 } 862 public void syncWidgetPages() { 863 // Ensure that we have the right number of pages 864 Context context = getContext(); 865 int[] countX = { mWidgetCountX, mShortcutCountX }; 866 int[] countY = { mWidgetCountY, mShortcutCountY }; 867 Object[] collection = { mWidgets, mShortcuts }; 868 for (int i = 0; i < 2; ++i) { 869 ArrayList<Object> list = (ArrayList<Object>) collection[i]; 870 int numItemsPerPage = countX[i] * countY[i]; 871 int numItemPages = (int) Math.ceil(list.size() / (float) numItemsPerPage); 872 for (int j = 0; j < numItemPages; ++j) { 873 PagedViewGridLayout layout = new PagedViewGridLayout(context, countX[i], 874 countY[i]); 875 setupPage(layout); 876 addView(layout); 877 } 878 } 879 } 880 public void syncWidgetPageItems(int page) { 881 int[] countX = { mWidgetCountX, mShortcutCountX }; 882 int[] countY = { mWidgetCountY, mShortcutCountY }; 883 int[] widthGap = { mWidgetWidthGap, mWidgetWidthGap }; 884 int[] heightGap = { mWidgetHeightGap, mWidgetHeightGap }; 885 int[] numItemsPerPage = { mWidgetCountX * mWidgetCountY, 886 mShortcutCountX * mShortcutCountY }; 887 Object[] collection = { mWidgets, mShortcuts }; 888 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 889 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 890 int numWidgetPages = (int) Math.ceil(mWidgets.size() / (float) numItemsPerPage[0]); 891 int[] offsets = { page * numItemsPerPage[0], (page - numWidgetPages) * numItemsPerPage[1] }; 892 int index = (page < numWidgetPages ? 0 : 1); 893 894 // Calculate the dimensions of each cell we are giving to each widget 895 ArrayList<Object> list = (ArrayList<Object>) collection[index]; 896 ArrayList<Object> items = new ArrayList<Object>(); 897 int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 898 - ((countX[index] - 1) * widthGap[index])) / countX[index]); 899 int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 900 - ((countY[index] - 1) * heightGap[index])) / countY[index]); 901 902 int offset = offsets[index]; 903 for (int i = offset; i < Math.min(offset + numItemsPerPage[index], list.size()); ++i) { 904 items.add(list.get(i)); 905 } 906 907 prepareLoadWidgetPreviewsTask(page, items, cellWidth, cellHeight, countX[index]); 908 } 909 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 910 int page = data.page; 911 PagedViewGridLayout layout = (PagedViewGridLayout) getChildAt(page); 912 layout.removeAllViews(); 913 914 ArrayList<Object> items = data.items; 915 int count = items.size(); 916 int cellWidth = data.cellWidth; 917 int cellHeight = data.cellHeight; 918 int cellCountX = data.cellCountX; 919 for (int i = 0; i < count; ++i) { 920 Object rawInfo = items.get(i); 921 PendingAddItemInfo createItemInfo = null; 922 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 923 R.layout.apps_customize_widget, layout, false); 924 if (rawInfo instanceof AppWidgetProviderInfo) { 925 // Fill in the widget information 926 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 927 createItemInfo = new PendingAddWidgetInfo(info, null, null); 928 int[] cellSpans = CellLayout.rectToCell(getResources(), 929 info.minWidth, info.minHeight, null); 930 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 931 widget.applyFromAppWidgetProviderInfo(info, preview, -1, cellSpans, 932 mHolographicOutlineHelper); 933 widget.setTag(createItemInfo); 934 } else if (rawInfo instanceof ResolveInfo) { 935 // Fill in the shortcuts information 936 ResolveInfo info = (ResolveInfo) rawInfo; 937 createItemInfo = new PendingAddItemInfo(); 938 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 939 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 940 info.activityInfo.name); 941 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 942 widget.applyFromResolveInfo(mPackageManager, info, preview, 943 mHolographicOutlineHelper); 944 widget.setTag(createItemInfo); 945 } 946 widget.setOnClickListener(this); 947 widget.setOnLongClickListener(this); 948 widget.setOnTouchListener(this); 949 950 // Layout each widget 951 int ix = i % cellCountX; 952 int iy = i / cellCountX; 953 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 954 new GridLayout.Group(iy, 1, GridLayout.LEFT), 955 new GridLayout.Group(ix, 1, GridLayout.TOP)); 956 lp.width = cellWidth; 957 lp.height = cellHeight; 958 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 959 if (iy > 0) lp.topMargin = mWidgetHeightGap; 960 layout.addView(widget, lp); 961 } 962 963 invalidate(); 964 forceUpdateAdjacentPagesAlpha(); 965 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 966 } 967 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 968 // Invalidate early to short-circuit children invalidates 969 invalidate(); 970 971 int page = data.page; 972 ViewGroup layout = (ViewGroup) getChildAt(page); 973 if (layout instanceof PagedViewCellLayout) { 974 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 975 int count = cl.getPageChildCount(); 976 if (count != data.generatedImages.size()) return; 977 for (int i = 0; i < count; ++i) { 978 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 979 icon.setHolographicOutline(data.generatedImages.get(i)); 980 } 981 } else { 982 int count = layout.getChildCount(); 983 if (count != data.generatedImages.size()) return; 984 for (int i = 0; i < count; ++i) { 985 View v = layout.getChildAt(i); 986 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 987 } 988 } 989 } 990 991 @Override 992 public void syncPages() { 993 removeAllViews(); 994 995 // Remove all background asyc tasks if we are loading content anew 996 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 997 while (iter.hasNext()) { 998 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 999 task.cancel(false); 1000 iter.remove(); 1001 } 1002 1003 switch (mContentType) { 1004 case Applications: 1005 syncAppsPages(); 1006 break; 1007 case Widgets: 1008 syncWidgetPages(); 1009 break; 1010 } 1011 } 1012 @Override 1013 public void syncPageItems(int page) { 1014 switch (mContentType) { 1015 case Applications: 1016 syncAppsPageItems(page); 1017 break; 1018 case Widgets: 1019 syncWidgetPageItems(page); 1020 break; 1021 } 1022 } 1023 1024 /** 1025 * Used by the parent to get the content width to set the tab bar to 1026 * @return 1027 */ 1028 public int getPageContentWidth() { 1029 return mContentWidth; 1030 } 1031 1032 @Override 1033 protected void onPageBeginMoving() { 1034 /* TO BE ENABLED LATER 1035 setChildrenDrawnWithCacheEnabled(true); 1036 for (int i = 0; i < getChildCount(); ++i) { 1037 View v = getChildAt(i); 1038 if (v instanceof PagedViewCellLayout) { 1039 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(true); 1040 } 1041 } 1042 */ 1043 super.onPageBeginMoving(); 1044 } 1045 1046 @Override 1047 protected void onPageEndMoving() { 1048 /* TO BE ENABLED LATER 1049 for (int i = 0; i < getChildCount(); ++i) { 1050 View v = getChildAt(i); 1051 if (v instanceof PagedViewCellLayout) { 1052 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(false); 1053 } 1054 } 1055 setChildrenDrawnWithCacheEnabled(false); 1056 */ 1057 super.onPageEndMoving(); 1058 } 1059 1060 /* 1061 * AllAppsView implementation 1062 */ 1063 @Override 1064 public void setup(Launcher launcher, DragController dragController) { 1065 mLauncher = launcher; 1066 mDragController = dragController; 1067 } 1068 @Override 1069 public void zoom(float zoom, boolean animate) { 1070 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1071 } 1072 @Override 1073 public boolean isVisible() { 1074 return (getVisibility() == VISIBLE); 1075 } 1076 @Override 1077 public boolean isAnimating() { 1078 return false; 1079 } 1080 @Override 1081 public void setApps(ArrayList<ApplicationInfo> list) { 1082 mApps = list; 1083 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1084 1085 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1086 // request a layout to do this test and invalidate the page data when ready. 1087 if (testDataReady()) requestLayout(); 1088 } 1089 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1090 // We add it in place, in alphabetical order 1091 int count = list.size(); 1092 for (int i = 0; i < count; ++i) { 1093 ApplicationInfo info = list.get(i); 1094 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1095 if (index < 0) { 1096 mApps.add(-(index + 1), info); 1097 } 1098 } 1099 } 1100 @Override 1101 public void addApps(ArrayList<ApplicationInfo> list) { 1102 addAppsWithoutInvalidate(list); 1103 invalidatePageData(); 1104 } 1105 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1106 ComponentName removeComponent = item.intent.getComponent(); 1107 int length = list.size(); 1108 for (int i = 0; i < length; ++i) { 1109 ApplicationInfo info = list.get(i); 1110 if (info.intent.getComponent().equals(removeComponent)) { 1111 return i; 1112 } 1113 } 1114 return -1; 1115 } 1116 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1117 // loop through all the apps and remove apps that have the same component 1118 int length = list.size(); 1119 for (int i = 0; i < length; ++i) { 1120 ApplicationInfo info = list.get(i); 1121 int removeIndex = findAppByComponent(mApps, info); 1122 if (removeIndex > -1) { 1123 mApps.remove(removeIndex); 1124 } 1125 } 1126 } 1127 @Override 1128 public void removeApps(ArrayList<ApplicationInfo> list) { 1129 removeAppsWithoutInvalidate(list); 1130 invalidatePageData(); 1131 } 1132 @Override 1133 public void updateApps(ArrayList<ApplicationInfo> list) { 1134 // We remove and re-add the updated applications list because it's properties may have 1135 // changed (ie. the title), and this will ensure that the items will be in their proper 1136 // place in the list. 1137 removeAppsWithoutInvalidate(list); 1138 addAppsWithoutInvalidate(list); 1139 invalidatePageData(); 1140 } 1141 @Override 1142 public void reset() { 1143 if (mContentType != ContentType.Applications) { 1144 // Reset to the first page of the Apps pane 1145 AppsCustomizeTabHost tabs = (AppsCustomizeTabHost) 1146 mLauncher.findViewById(R.id.apps_customize_pane); 1147 tabs.setCurrentTabByTag(tabs.getTabTagForContentType(ContentType.Applications)); 1148 } else { 1149 setCurrentPage(0); 1150 invalidatePageData(); 1151 } 1152 } 1153 @Override 1154 public void dumpState() { 1155 // TODO: Dump information related to current list of Applications, Widgets, etc. 1156 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1157 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1158 dumpAppWidgetProviderInfoList(LOG_TAG, "mShortcuts", mShortcuts); 1159 } 1160 private void dumpAppWidgetProviderInfoList(String tag, String label, 1161 ArrayList<Object> list) { 1162 Log.d(tag, label + " size=" + list.size()); 1163 for (Object i: list) { 1164 if (i instanceof AppWidgetProviderInfo) { 1165 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1166 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1167 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1168 + " initialLayout=" + info.initialLayout 1169 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1170 } else if (i instanceof ResolveInfo) { 1171 ResolveInfo info = (ResolveInfo) i; 1172 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1173 + info.icon); 1174 } 1175 } 1176 } 1177 @Override 1178 public void surrender() { 1179 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1180 // should stop this now. 1181 } 1182 1183 @Override 1184 protected int getPageWidthForScrollingIndicator() { 1185 return getPageContentWidth(); 1186 } 1187 1188 /* 1189 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1190 * widget previews in the background with the AsyncTasks. 1191 */ 1192 protected int getAssociatedLowerPageBound(int page) { 1193 return Math.max(0, page - 2); 1194 } 1195 protected int getAssociatedUpperPageBound(int page) { 1196 final int count = getChildCount(); 1197 return Math.min(page + 2, count - 1); 1198 } 1199 1200 @Override 1201 protected String getCurrentPageDescription() { 1202 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1203 int stringId = R.string.default_scroll_format; 1204 switch (mContentType) { 1205 case Applications: 1206 stringId = R.string.apps_customize_apps_scroll_format; 1207 break; 1208 case Widgets: 1209 stringId = R.string.apps_customize_widgets_scroll_format; 1210 break; 1211 } 1212 return String.format(mContext.getString(stringId), page + 1, getChildCount()); 1213 } 1214} 1215