AppsCustomizePagedView.java revision be69cc8ed86b7f22e7e4cf0c5a1500f45993075f
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_holo); 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 // Go into spring loaded mode (must happen before we startDrag()) 464 int currentPageIndex = mLauncher.getWorkspace().getCurrentPage(); 465 CellLayout currentPage = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPageIndex); 466 mLauncher.enterSpringLoadedDragMode(currentPage); 467 468 if (v instanceof PagedViewIcon) { 469 beginDraggingApplication(v); 470 } else if (v instanceof PagedViewWidget) { 471 beginDraggingWidget(v); 472 } 473 return true; 474 } 475 private void endDragging(boolean success) { 476 mLauncher.getWorkspace().onDragStopped(success); 477 mLauncher.exitSpringLoadedDragMode(); 478 mLauncher.unlockScreenOrientation(); 479 480 } 481 482 /* 483 * DragSource implementation 484 */ 485 @Override 486 public void onDragViewVisible() {} 487 @Override 488 public void onDropCompleted(View target, DragObject d, boolean success) { 489 endDragging(success); 490 491 // Display an error message if the drag failed due to there not being enough space on the 492 // target layout we were dropping on. 493 if (!success) { 494 boolean showOutOfSpaceMessage = false; 495 if (target instanceof Workspace) { 496 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 497 Workspace workspace = (Workspace) target; 498 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 499 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 500 if (layout != null) { 501 layout.calculateSpans(itemInfo); 502 showOutOfSpaceMessage = 503 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 504 } 505 } 506 // TODO-APPS_CUSTOMIZE: We need to handle this for folders as well later. 507 if (showOutOfSpaceMessage) { 508 mLauncher.showOutOfSpaceMessage(); 509 } 510 } 511 } 512 513 public void setContentType(ContentType type) { 514 mContentType = type; 515 setCurrentPage(0); 516 invalidatePageData(); 517 } 518 519 public boolean isContentType(ContentType type) { 520 return (mContentType == type); 521 } 522 523 /* 524 * Apps PagedView implementation 525 */ 526 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 527 int childCount = layout.getChildCount(); 528 for (int i = 0; i < childCount; ++i) { 529 layout.getChildAt(i).setVisibility(visibility); 530 } 531 } 532 private void setupPage(PagedViewCellLayout layout) { 533 layout.setCellCount(mCellCountX, mCellCountY); 534 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 535 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 536 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 537 538 // Note: We force a measure here to get around the fact that when we do layout calculations 539 // immediately after syncing, we don't have a proper width. That said, we already know the 540 // expected page width, so we can actually optimize by hiding all the TextView-based 541 // children that are expensive to measure, and let that happen naturally later. 542 setVisibilityOnChildren(layout, View.GONE); 543 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 544 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 545 layout.setMinimumWidth(getPageContentWidth()); 546 layout.measure(widthSpec, heightSpec); 547 setVisibilityOnChildren(layout, View.VISIBLE); 548 } 549 public void syncAppsPages() { 550 // Ensure that we have the right number of pages 551 Context context = getContext(); 552 int numPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 553 for (int i = 0; i < numPages; ++i) { 554 PagedViewCellLayout layout = new PagedViewCellLayout(context); 555 setupPage(layout); 556 addView(layout); 557 } 558 } 559 public void syncAppsPageItems(int page) { 560 // ensure that we have the right number of items on the pages 561 int numPages = getPageCount(); 562 int numCells = mCellCountX * mCellCountY; 563 int startIndex = page * numCells; 564 int endIndex = Math.min(startIndex + numCells, mApps.size()); 565 PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page); 566 567 layout.removeAllViewsOnPage(); 568 ArrayList<Object> items = new ArrayList<Object>(); 569 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 570 for (int i = startIndex; i < endIndex; ++i) { 571 ApplicationInfo info = mApps.get(i); 572 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 573 R.layout.apps_customize_application, layout, false); 574 icon.applyFromApplicationInfo(info, true, mHolographicOutlineHelper); 575 icon.setOnClickListener(this); 576 icon.setOnLongClickListener(this); 577 icon.setOnTouchListener(this); 578 579 int index = i - startIndex; 580 int x = index % mCellCountX; 581 int y = index / mCellCountX; 582 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 583 584 items.add(info); 585 images.add(info.iconBitmap); 586 } 587 588 // Create the hardware layers 589 layout.allowHardwareLayerCreation(); 590 layout.createHardwareLayers(); 591 592 prepareGenerateHoloOutlinesTask(page, items, images); 593 } 594 595 /** 596 * Return the appropriate thread priority for loading for a given page (we give the current 597 * page much higher priority) 598 */ 599 private int getThreadPriorityForPage(int page) { 600 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 601 int pageDiff = Math.abs(page - mCurrentPage); 602 if (pageDiff <= 0) { 603 // return Process.THREAD_PRIORITY_DEFAULT; 604 return Process.THREAD_PRIORITY_MORE_FAVORABLE; 605 } else if (pageDiff <= 1) { 606 // return Process.THREAD_PRIORITY_BACKGROUND; 607 return Process.THREAD_PRIORITY_DEFAULT; 608 } else { 609 // return Process.THREAD_PRIORITY_LOWEST; 610 return Process.THREAD_PRIORITY_DEFAULT; 611 } 612 } 613 /** 614 * Creates and executes a new AsyncTask to load a page of widget previews. 615 */ 616 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 617 int cellWidth, int cellHeight, int cellCountX) { 618 // Prune all tasks that are no longer needed 619 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 620 while (iter.hasNext()) { 621 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 622 int taskPage = task.page; 623 if ((taskPage == page) || 624 taskPage < getAssociatedLowerPageBound(mCurrentPage) || 625 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 626 task.cancel(false); 627 iter.remove(); 628 } else { 629 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 630 } 631 } 632 633 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 634 cellCountX, new AsyncTaskCallback() { 635 @Override 636 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 637 // Ensure that this task starts running at the correct priority 638 task.syncThreadPriority(); 639 640 // Load each of the widget/shortcut previews 641 ArrayList<Object> items = data.items; 642 ArrayList<Bitmap> images = data.generatedImages; 643 int count = items.size(); 644 int cellWidth = data.cellWidth; 645 int cellHeight = data.cellHeight; 646 for (int i = 0; i < count && !task.isCancelled(); ++i) { 647 // Before work on each item, ensure that this task is running at the correct 648 // priority 649 task.syncThreadPriority(); 650 651 Object rawInfo = items.get(i); 652 if (rawInfo instanceof AppWidgetProviderInfo) { 653 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 654 int[] cellSpans = CellLayout.rectToCell(getResources(), 655 info.minWidth, info.minHeight, null); 656 images.add(getWidgetPreview(info, cellSpans[0],cellSpans[1], 657 cellWidth, cellHeight)); 658 } else if (rawInfo instanceof ResolveInfo) { 659 // Fill in the shortcuts information 660 ResolveInfo info = (ResolveInfo) rawInfo; 661 images.add(getShortcutPreview(info, cellWidth, cellHeight)); 662 } 663 } 664 } 665 }, 666 new AsyncTaskCallback() { 667 @Override 668 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 669 mRunningTasks.remove(task); 670 if (task.isCancelled()) return; 671 if (task.page > getPageCount()) return; 672 if (task.pageContentType != mContentType) return; 673 onSyncWidgetPageItems(data); 674 } 675 }); 676 677 // Ensure that the task is appropriately prioritized and runs in parallel 678 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, mContentType, 679 AsyncTaskPageData.Type.LoadWidgetPreviewData); 680 t.setThreadPriority(getThreadPriorityForPage(page)); 681 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 682 mRunningTasks.add(t); 683 } 684 /** 685 * Creates and executes a new AsyncTask to load the outlines for a page of content. 686 */ 687 private void prepareGenerateHoloOutlinesTask(int page, ArrayList<Object> items, 688 ArrayList<Bitmap> images) { 689 // Prune old tasks for this page 690 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 691 while (iter.hasNext()) { 692 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 693 int taskPage = task.page; 694 if ((taskPage == page) && 695 (task.dataType == AsyncTaskPageData.Type.LoadHolographicIconsData)) { 696 task.cancel(false); 697 iter.remove(); 698 } 699 } 700 701 AsyncTaskPageData pageData = new AsyncTaskPageData(page, items, images, 702 new AsyncTaskCallback() { 703 @Override 704 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 705 // Ensure that this task starts running at the correct priority 706 task.syncThreadPriority(); 707 708 ArrayList<Bitmap> images = data.generatedImages; 709 ArrayList<Bitmap> srcImages = data.sourceImages; 710 int count = srcImages.size(); 711 Canvas c = new Canvas(); 712 for (int i = 0; i < count && !task.isCancelled(); ++i) { 713 // Before work on each item, ensure that this task is running at the correct 714 // priority 715 task.syncThreadPriority(); 716 717 Bitmap b = srcImages.get(i); 718 Bitmap outline = Bitmap.createBitmap(b.getWidth(), b.getHeight(), 719 Bitmap.Config.ARGB_8888); 720 721 c.setBitmap(outline); 722 c.save(); 723 c.drawBitmap(b, 0, 0, null); 724 c.restore(); 725 726 images.add(outline); 727 } 728 } 729 }, 730 new AsyncTaskCallback() { 731 @Override 732 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 733 mRunningTasks.remove(task); 734 if (task.isCancelled()) return; 735 if (task.page > getPageCount()) return; 736 if (task.pageContentType != mContentType) return; 737 onHolographicPageItemsLoaded(data); 738 } 739 }); 740 741 // Ensure that the outline task always runs in the background, serially 742 AppsCustomizeAsyncTask t = 743 new AppsCustomizeAsyncTask(page, mContentType, 744 AsyncTaskPageData.Type.LoadHolographicIconsData); 745 t.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 746 t.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, pageData); 747 mRunningTasks.add(t); 748 } 749 750 /* 751 * Widgets PagedView implementation 752 */ 753 private void setupPage(PagedViewGridLayout layout) { 754 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 755 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 756 757 // Note: We force a measure here to get around the fact that when we do layout calculations 758 // immediately after syncing, we don't have a proper width. That said, we already know the 759 // expected page width, so we can actually optimize by hiding all the TextView-based 760 // children that are expensive to measure, and let that happen naturally later. 761 setVisibilityOnChildren(layout, View.GONE); 762 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 763 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 764 layout.setMinimumWidth(getPageContentWidth()); 765 layout.measure(widthSpec, heightSpec); 766 setVisibilityOnChildren(layout, View.VISIBLE); 767 } 768 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 769 float scaleX, float scaleY) { 770 if (bitmap != null) { 771 Canvas c = new Canvas(bitmap); 772 c.scale(scaleX, scaleY); 773 Rect oldBounds = d.copyBounds(); 774 d.setBounds(x, y, x + w, y + h); 775 d.draw(c); 776 d.setBounds(oldBounds); // Restore the bounds 777 } 778 } 779 private Bitmap getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 780 // Render the icon 781 Bitmap preview = Bitmap.createBitmap(cellWidth, mAppIconSize, Config.ARGB_8888); 782 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 783 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize, 1f, 1f); 784 return preview; 785 } 786 private Bitmap getWidgetPreview(AppWidgetProviderInfo info, 787 int cellHSpan, int cellVSpan, int cellWidth, int cellHeight) { 788 789 // Calculate the size of the drawable 790 cellHSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellHSpan)); 791 cellVSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellVSpan)); 792 int expectedWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 793 int expectedHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 794 795 // Scale down the bitmap to fit the space 796 float widgetPreviewScale = (float) cellWidth / expectedWidth; 797 expectedWidth = (int) (widgetPreviewScale * expectedWidth); 798 expectedHeight = (int) (widgetPreviewScale * expectedHeight); 799 800 // Load the preview image if possible 801 String packageName = info.provider.getPackageName(); 802 Drawable drawable = null; 803 Bitmap preview = null; 804 if (info.previewImage != 0) { 805 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 806 if (drawable == null) { 807 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 808 + " for provider: " + info.provider); 809 } else { 810 // Scale down the preview to the dimensions we want 811 int imageWidth = drawable.getIntrinsicWidth(); 812 int imageHeight = drawable.getIntrinsicHeight(); 813 float aspect = (float) imageWidth / imageHeight; 814 int newWidth = imageWidth; 815 int newHeight = imageHeight; 816 if (aspect > 1f) { 817 newWidth = expectedWidth; 818 newHeight = (int) (imageHeight * ((float) expectedWidth / imageWidth)); 819 } else { 820 newHeight = expectedHeight; 821 newWidth = (int) (imageWidth * ((float) expectedHeight / imageHeight)); 822 } 823 824 preview = Bitmap.createBitmap(newWidth, newHeight, Config.ARGB_8888); 825 renderDrawableToBitmap(drawable, preview, 0, 0, newWidth, newHeight, 1f, 1f); 826 } 827 } 828 829 // Generate a preview image if we couldn't load one 830 if (drawable == null) { 831 Resources resources = mLauncher.getResources(); 832 833 // Specify the dimensions of the bitmap 834 if (info.minWidth >= info.minHeight) { 835 expectedWidth = cellWidth; 836 expectedHeight = mWidgetPreviewIconPaddedDimension; 837 } else { 838 // Note that in vertical widgets, we might not have enough space due to the text 839 // label, so be conservative and use the width as a height bound 840 expectedWidth = mWidgetPreviewIconPaddedDimension; 841 expectedHeight = cellWidth; 842 } 843 844 preview = Bitmap.createBitmap(expectedWidth, expectedHeight, Config.ARGB_8888); 845 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, expectedWidth, 846 expectedHeight, 1f,1f); 847 848 // Draw the icon in the top left corner 849 try { 850 Drawable icon = null; 851 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 852 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 853 854 int offset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 855 renderDrawableToBitmap(icon, preview, offset, offset, 856 mAppIconSize, mAppIconSize, 1f, 1f); 857 } catch (Resources.NotFoundException e) {} 858 } 859 return preview; 860 } 861 public void syncWidgetPages() { 862 // Ensure that we have the right number of pages 863 Context context = getContext(); 864 int[] countX = { mWidgetCountX, mShortcutCountX }; 865 int[] countY = { mWidgetCountY, mShortcutCountY }; 866 Object[] collection = { mWidgets, mShortcuts }; 867 for (int i = 0; i < 2; ++i) { 868 ArrayList<Object> list = (ArrayList<Object>) collection[i]; 869 int numItemsPerPage = countX[i] * countY[i]; 870 int numItemPages = (int) Math.ceil(list.size() / (float) numItemsPerPage); 871 for (int j = 0; j < numItemPages; ++j) { 872 PagedViewGridLayout layout = new PagedViewGridLayout(context, countX[i], 873 countY[i]); 874 setupPage(layout); 875 addView(layout); 876 } 877 } 878 } 879 public void syncWidgetPageItems(int page) { 880 int[] countX = { mWidgetCountX, mShortcutCountX }; 881 int[] countY = { mWidgetCountY, mShortcutCountY }; 882 int[] widthGap = { mWidgetWidthGap, mWidgetWidthGap }; 883 int[] heightGap = { mWidgetHeightGap, mWidgetHeightGap }; 884 int[] numItemsPerPage = { mWidgetCountX * mWidgetCountY, 885 mShortcutCountX * mShortcutCountY }; 886 Object[] collection = { mWidgets, mShortcuts }; 887 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 888 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 889 int numWidgetPages = (int) Math.ceil(mWidgets.size() / (float) numItemsPerPage[0]); 890 int[] offsets = { page * numItemsPerPage[0], (page - numWidgetPages) * numItemsPerPage[1] }; 891 int index = (page < numWidgetPages ? 0 : 1); 892 893 // Calculate the dimensions of each cell we are giving to each widget 894 ArrayList<Object> list = (ArrayList<Object>) collection[index]; 895 ArrayList<Object> items = new ArrayList<Object>(); 896 int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 897 - ((countX[index] - 1) * widthGap[index])) / countX[index]); 898 int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 899 - ((countY[index] - 1) * heightGap[index])) / countY[index]); 900 901 int offset = offsets[index]; 902 for (int i = offset; i < Math.min(offset + numItemsPerPage[index], list.size()); ++i) { 903 items.add(list.get(i)); 904 } 905 906 prepareLoadWidgetPreviewsTask(page, items, cellWidth, cellHeight, countX[index]); 907 } 908 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 909 int page = data.page; 910 PagedViewGridLayout layout = (PagedViewGridLayout) getChildAt(page); 911 layout.removeAllViews(); 912 913 ArrayList<Object> items = data.items; 914 int count = items.size(); 915 int cellWidth = data.cellWidth; 916 int cellHeight = data.cellHeight; 917 int cellCountX = data.cellCountX; 918 for (int i = 0; i < count; ++i) { 919 Object rawInfo = items.get(i); 920 PendingAddItemInfo createItemInfo = null; 921 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 922 R.layout.apps_customize_widget, layout, false); 923 if (rawInfo instanceof AppWidgetProviderInfo) { 924 // Fill in the widget information 925 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 926 createItemInfo = new PendingAddWidgetInfo(info, null, null); 927 int[] cellSpans = CellLayout.rectToCell(getResources(), 928 info.minWidth, info.minHeight, null); 929 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 930 widget.applyFromAppWidgetProviderInfo(info, preview, -1, cellSpans, 931 mHolographicOutlineHelper); 932 widget.setTag(createItemInfo); 933 } else if (rawInfo instanceof ResolveInfo) { 934 // Fill in the shortcuts information 935 ResolveInfo info = (ResolveInfo) rawInfo; 936 createItemInfo = new PendingAddItemInfo(); 937 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 938 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 939 info.activityInfo.name); 940 FastBitmapDrawable preview = new FastBitmapDrawable(data.generatedImages.get(i)); 941 widget.applyFromResolveInfo(mPackageManager, info, preview, 942 mHolographicOutlineHelper); 943 widget.setTag(createItemInfo); 944 } 945 widget.setOnClickListener(this); 946 widget.setOnLongClickListener(this); 947 widget.setOnTouchListener(this); 948 949 // Layout each widget 950 int ix = i % cellCountX; 951 int iy = i / cellCountX; 952 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 953 new GridLayout.Group(iy, 1, GridLayout.LEFT), 954 new GridLayout.Group(ix, 1, GridLayout.TOP)); 955 lp.width = cellWidth; 956 lp.height = cellHeight; 957 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 958 if (iy > 0) lp.topMargin = mWidgetHeightGap; 959 layout.addView(widget, lp); 960 } 961 962 invalidate(); 963 forceUpdateAdjacentPagesAlpha(); 964 prepareGenerateHoloOutlinesTask(data.page, data.items, data.generatedImages); 965 } 966 private void onHolographicPageItemsLoaded(AsyncTaskPageData data) { 967 // Invalidate early to short-circuit children invalidates 968 invalidate(); 969 970 int page = data.page; 971 ViewGroup layout = (ViewGroup) getChildAt(page); 972 if (layout instanceof PagedViewCellLayout) { 973 PagedViewCellLayout cl = (PagedViewCellLayout) layout; 974 int count = cl.getPageChildCount(); 975 if (count != data.generatedImages.size()) return; 976 for (int i = 0; i < count; ++i) { 977 PagedViewIcon icon = (PagedViewIcon) cl.getChildOnPageAt(i); 978 icon.setHolographicOutline(data.generatedImages.get(i)); 979 } 980 } else { 981 int count = layout.getChildCount(); 982 if (count != data.generatedImages.size()) return; 983 for (int i = 0; i < count; ++i) { 984 View v = layout.getChildAt(i); 985 ((PagedViewWidget) v).setHolographicOutline(data.generatedImages.get(i)); 986 } 987 } 988 } 989 990 @Override 991 public void syncPages() { 992 removeAllViews(); 993 994 // Remove all background asyc tasks if we are loading content anew 995 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 996 while (iter.hasNext()) { 997 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 998 task.cancel(false); 999 iter.remove(); 1000 } 1001 1002 switch (mContentType) { 1003 case Applications: 1004 syncAppsPages(); 1005 break; 1006 case Widgets: 1007 syncWidgetPages(); 1008 break; 1009 } 1010 } 1011 @Override 1012 public void syncPageItems(int page) { 1013 switch (mContentType) { 1014 case Applications: 1015 syncAppsPageItems(page); 1016 break; 1017 case Widgets: 1018 syncWidgetPageItems(page); 1019 break; 1020 } 1021 } 1022 1023 /** 1024 * Used by the parent to get the content width to set the tab bar to 1025 * @return 1026 */ 1027 public int getPageContentWidth() { 1028 return mContentWidth; 1029 } 1030 1031 @Override 1032 protected void onPageBeginMoving() { 1033 /* TO BE ENABLED LATER 1034 setChildrenDrawnWithCacheEnabled(true); 1035 for (int i = 0; i < getChildCount(); ++i) { 1036 View v = getChildAt(i); 1037 if (v instanceof PagedViewCellLayout) { 1038 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(true); 1039 } 1040 } 1041 */ 1042 super.onPageBeginMoving(); 1043 } 1044 1045 @Override 1046 protected void onPageEndMoving() { 1047 /* TO BE ENABLED LATER 1048 for (int i = 0; i < getChildCount(); ++i) { 1049 View v = getChildAt(i); 1050 if (v instanceof PagedViewCellLayout) { 1051 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(false); 1052 } 1053 } 1054 setChildrenDrawnWithCacheEnabled(false); 1055 */ 1056 super.onPageEndMoving(); 1057 } 1058 1059 /* 1060 * AllAppsView implementation 1061 */ 1062 @Override 1063 public void setup(Launcher launcher, DragController dragController) { 1064 mLauncher = launcher; 1065 mDragController = dragController; 1066 } 1067 @Override 1068 public void zoom(float zoom, boolean animate) { 1069 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1070 } 1071 @Override 1072 public boolean isVisible() { 1073 return (getVisibility() == VISIBLE); 1074 } 1075 @Override 1076 public boolean isAnimating() { 1077 return false; 1078 } 1079 @Override 1080 public void setApps(ArrayList<ApplicationInfo> list) { 1081 mApps = list; 1082 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1083 1084 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1085 // request a layout to do this test and invalidate the page data when ready. 1086 if (testDataReady()) requestLayout(); 1087 } 1088 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1089 // We add it in place, in alphabetical order 1090 int count = list.size(); 1091 for (int i = 0; i < count; ++i) { 1092 ApplicationInfo info = list.get(i); 1093 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1094 if (index < 0) { 1095 mApps.add(-(index + 1), info); 1096 } 1097 } 1098 } 1099 @Override 1100 public void addApps(ArrayList<ApplicationInfo> list) { 1101 addAppsWithoutInvalidate(list); 1102 invalidatePageData(); 1103 } 1104 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1105 ComponentName removeComponent = item.intent.getComponent(); 1106 int length = list.size(); 1107 for (int i = 0; i < length; ++i) { 1108 ApplicationInfo info = list.get(i); 1109 if (info.intent.getComponent().equals(removeComponent)) { 1110 return i; 1111 } 1112 } 1113 return -1; 1114 } 1115 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1116 // loop through all the apps and remove apps that have the same component 1117 int length = list.size(); 1118 for (int i = 0; i < length; ++i) { 1119 ApplicationInfo info = list.get(i); 1120 int removeIndex = findAppByComponent(mApps, info); 1121 if (removeIndex > -1) { 1122 mApps.remove(removeIndex); 1123 } 1124 } 1125 } 1126 @Override 1127 public void removeApps(ArrayList<ApplicationInfo> list) { 1128 removeAppsWithoutInvalidate(list); 1129 invalidatePageData(); 1130 } 1131 @Override 1132 public void updateApps(ArrayList<ApplicationInfo> list) { 1133 // We remove and re-add the updated applications list because it's properties may have 1134 // changed (ie. the title), and this will ensure that the items will be in their proper 1135 // place in the list. 1136 removeAppsWithoutInvalidate(list); 1137 addAppsWithoutInvalidate(list); 1138 invalidatePageData(); 1139 } 1140 @Override 1141 public void reset() { 1142 if (mContentType != ContentType.Applications) { 1143 // Reset to the first page of the Apps pane 1144 AppsCustomizeTabHost tabs = (AppsCustomizeTabHost) 1145 mLauncher.findViewById(R.id.apps_customize_pane); 1146 tabs.setCurrentTabByTag(tabs.getTabTagForContentType(ContentType.Applications)); 1147 } else { 1148 setCurrentPage(0); 1149 invalidatePageData(); 1150 } 1151 } 1152 @Override 1153 public void dumpState() { 1154 // TODO: Dump information related to current list of Applications, Widgets, etc. 1155 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1156 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1157 dumpAppWidgetProviderInfoList(LOG_TAG, "mShortcuts", mShortcuts); 1158 } 1159 private void dumpAppWidgetProviderInfoList(String tag, String label, 1160 ArrayList<Object> list) { 1161 Log.d(tag, label + " size=" + list.size()); 1162 for (Object i: list) { 1163 if (i instanceof AppWidgetProviderInfo) { 1164 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1165 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1166 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1167 + " initialLayout=" + info.initialLayout 1168 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1169 } else if (i instanceof ResolveInfo) { 1170 ResolveInfo info = (ResolveInfo) i; 1171 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1172 + info.icon); 1173 } 1174 } 1175 } 1176 @Override 1177 public void surrender() { 1178 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1179 // should stop this now. 1180 } 1181 1182 /* 1183 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1184 * widget previews in the background with the AsyncTasks. 1185 */ 1186 protected int getAssociatedLowerPageBound(int page) { 1187 return Math.max(0, page - 2); 1188 } 1189 protected int getAssociatedUpperPageBound(int page) { 1190 final int count = getChildCount(); 1191 return Math.min(page + 2, count - 1); 1192 } 1193 1194 @Override 1195 protected String getCurrentPageDescription() { 1196 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1197 int stringId = R.string.default_scroll_format; 1198 switch (mContentType) { 1199 case Applications: 1200 stringId = R.string.apps_customize_apps_scroll_format; 1201 break; 1202 case Widgets: 1203 stringId = R.string.apps_customize_widgets_scroll_format; 1204 break; 1205 } 1206 return String.format(mContext.getString(stringId), page + 1, getChildCount()); 1207 } 1208} 1209