AppsCustomizePagedView.java revision 007c69867d821ea2b271398577a8b3440b3a7046
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.util.AttributeSet; 39import android.util.Log; 40import android.util.LruCache; 41import android.view.LayoutInflater; 42import android.view.View; 43import android.view.ViewGroup; 44import android.view.animation.AccelerateInterpolator; 45import android.widget.ImageView; 46import android.widget.TextView; 47import android.widget.Toast; 48 49import com.android.launcher.R; 50import com.android.launcher2.DropTarget.DragObject; 51 52import java.util.ArrayList; 53import java.util.Collections; 54import java.util.Iterator; 55import java.util.List; 56 57public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 58 AllAppsView, View.OnClickListener, DragSource { 59 static final String LOG_TAG = "AppsCustomizePagedView"; 60 61 /** 62 * The different content types that this paged view can show. 63 */ 64 public enum ContentType { 65 Applications, 66 Widgets 67 } 68 69 // Refs 70 private Launcher mLauncher; 71 private DragController mDragController; 72 private final LayoutInflater mLayoutInflater; 73 private final PackageManager mPackageManager; 74 75 // Content 76 private ContentType mContentType; 77 private ArrayList<ApplicationInfo> mApps; 78 private List<Object> mWidgets; 79 80 // Caching 81 private Drawable mDefaultWidgetBackground; 82 private final int sWidgetPreviewCacheSize = 1 * 1024 * 1024; // 1 MiB 83 private LruCache<Object, Bitmap> mWidgetPreviewCache; 84 private IconCache mIconCache; 85 86 // Dimens 87 private int mContentWidth; 88 private int mMaxWidgetSpan, mMinWidgetSpan; 89 private int mWidgetWidthGap, mWidgetHeightGap; 90 private int mWidgetCountX, mWidgetCountY; 91 private final int mWidgetPreviewIconPaddedDimension; 92 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 93 private PagedViewCellLayout mWidgetSpacingLayout; 94 95 // Animations 96 private final float ANIMATION_SCALE = 0.5f; 97 private final int TRANSLATE_ANIM_DURATION = 400; 98 private final int DROP_ANIM_DURATION = 200; 99 100 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 101 super(context, attrs); 102 mLayoutInflater = LayoutInflater.from(context); 103 mPackageManager = context.getPackageManager(); 104 mContentType = ContentType.Applications; 105 mApps = new ArrayList<ApplicationInfo>(); 106 mWidgets = new ArrayList<Object>(); 107 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 108 mWidgetPreviewCache = new LruCache<Object, Bitmap>(sWidgetPreviewCacheSize) { 109 protected int sizeOf(Object key, Bitmap value) { 110 return value.getByteCount(); 111 } 112 }; 113 114 // Save the default widget preview background 115 Resources resources = context.getResources(); 116 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview); 117 118 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PagedView, 0, 0); 119 // TODO-APPS_CUSTOMIZE: remove these unnecessary attrs after 120 mCellCountX = a.getInt(R.styleable.PagedView_cellCountX, 6); 121 mCellCountY = a.getInt(R.styleable.PagedView_cellCountY, 4); 122 a.recycle(); 123 a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 124 mWidgetWidthGap = 125 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 126 mWidgetHeightGap = 127 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 128 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 129 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 130 a.recycle(); 131 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 132 133 // The max widget span is the length N, such that NxN is the largest bounds that the widget 134 // preview can be before applying the widget scaling 135 mMinWidgetSpan = 1; 136 mMaxWidgetSpan = 3; 137 138 // The padding on the non-matched dimension for the default widget preview icons 139 // (top + bottom) 140 int iconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 141 mWidgetPreviewIconPaddedDimension = 142 (int) (iconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 143 } 144 145 @Override 146 protected void init() { 147 super.init(); 148 mCenterPagesVertically = false; 149 150 Context context = getContext(); 151 Resources r = context.getResources(); 152 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 153 } 154 155 @Override 156 protected void onWallpaperTap(android.view.MotionEvent ev) { 157 mLauncher.showWorkspace(true); 158 } 159 160 /** 161 * This differs from isDataReady as this is the test done if isDataReady is not set. 162 */ 163 private boolean testDataReady() { 164 return !mApps.isEmpty() && !mWidgets.isEmpty(); 165 } 166 167 protected void onDataReady(int width, int height) { 168 // Note that we transpose the counts in portrait so that we get a similar layout 169 boolean isLandscape = getResources().getConfiguration().orientation == 170 Configuration.ORIENTATION_LANDSCAPE; 171 int maxCellCountX = Integer.MAX_VALUE; 172 int maxCellCountY = Integer.MAX_VALUE; 173 if (LauncherApplication.isScreenLarge()) { 174 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 175 LauncherModel.getCellCountY()); 176 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 177 LauncherModel.getCellCountX()); 178 } 179 180 // Now that the data is ready, we can calculate the content width, the number of cells to 181 // use for each page 182 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 183 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 184 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 185 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 186 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 187 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 188 mWidgetCountX = Math.max(1, (int) Math.round(mCellCountX / 2f)); 189 mWidgetCountY = Math.max(1, (int) Math.round(mCellCountY / 3f)); 190 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 191 192 invalidatePageData(); 193 } 194 195 @Override 196 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 197 int width = MeasureSpec.getSize(widthMeasureSpec); 198 int height = MeasureSpec.getSize(heightMeasureSpec); 199 if (!isDataReady()) { 200 if (testDataReady()) { 201 setDataIsReady(); 202 setMeasuredDimension(width, height); 203 onDataReady(width, height); 204 } 205 } 206 207 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 208 } 209 210 /** Removes and returns the ResolveInfo with the specified ComponentName */ 211 private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, 212 ComponentName cn) { 213 Iterator<ResolveInfo> iter = list.iterator(); 214 while (iter.hasNext()) { 215 ResolveInfo rinfo = iter.next(); 216 ActivityInfo info = rinfo.activityInfo; 217 ComponentName c = new ComponentName(info.packageName, info.name); 218 if (c.equals(cn)) { 219 iter.remove(); 220 return rinfo; 221 } 222 } 223 return null; 224 } 225 226 public void onPackagesUpdated() { 227 // Get the list of widgets and shortcuts 228 mWidgets.clear(); 229 List<AppWidgetProviderInfo> widgets = 230 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 231 Collections.sort(widgets, 232 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 233 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 234 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 235 Collections.sort(shortcuts, 236 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 237 mWidgets.addAll(widgets); 238 mWidgets.addAll(shortcuts); 239 240 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 241 // a layout to do this test and invalidate the page data when ready. 242 if (testDataReady()) requestLayout(); 243 } 244 245 @Override 246 public void onClick(View v) { 247 if (v instanceof PagedViewIcon) { 248 // Animate some feedback to the click 249 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 250 animateClickFeedback(v, new Runnable() { 251 @Override 252 public void run() { 253 mLauncher.startActivitySafely(appInfo.intent, appInfo); 254 } 255 }); 256 } else if (v instanceof PagedViewWidget) { 257 // Let the user know that they have to long press to add a widget 258 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 259 Toast.LENGTH_SHORT).show(); 260 261 // Create a little animation to show that the widget can move 262 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 263 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 264 AnimatorSet bounce = new AnimatorSet(); 265 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 266 tyuAnim.setDuration(125); 267 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 268 tydAnim.setDuration(100); 269 bounce.play(tyuAnim).before(tydAnim); 270 bounce.setInterpolator(new AccelerateInterpolator()); 271 bounce.start(); 272 } 273 } 274 275 /* 276 * PagedViewWithDraggableItems implementation 277 */ 278 @Override 279 protected void determineDraggingStart(android.view.MotionEvent ev) { 280 // Disable dragging by pulling an app down for now. 281 } 282 private void beginDraggingApplication(View v) { 283 // Make a copy of the ApplicationInfo 284 ApplicationInfo appInfo = new ApplicationInfo((ApplicationInfo) v.getTag()); 285 286 // Compose the drag image (top compound drawable, index is 1) 287 final TextView tv = (TextView) v; 288 final Drawable icon = tv.getCompoundDrawables()[1]; 289 Bitmap b = Bitmap.createBitmap(v.getWidth(), v.getHeight(), 290 Bitmap.Config.ARGB_8888); 291 Canvas c = new Canvas(b); 292 c.translate((v.getWidth() - icon.getIntrinsicWidth()) / 2, v.getPaddingTop()); 293 icon.draw(c); 294 295 // Compose the visible rect of the drag image 296 Rect dragRect = null; 297 if (v instanceof TextView) { 298 int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 299 int top = v.getPaddingTop(); 300 int left = (b.getWidth() - iconSize) / 2; 301 int right = left + iconSize; 302 int bottom = top + iconSize; 303 dragRect = new Rect(left, top, right, bottom); 304 } 305 306 // Start the drag 307 mLauncher.lockScreenOrientation(); 308 mLauncher.getWorkspace().onDragStartedWithItemSpans(1, 1, b); 309 mDragController.startDrag(v, b, this, appInfo, DragController.DRAG_ACTION_COPY, dragRect); 310 b.recycle(); 311 } 312 private void beginDraggingWidget(View v) { 313 // Get the widget preview as the drag representation 314 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 315 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 316 317 // Compose the drag image 318 Bitmap b; 319 Drawable preview = image.getDrawable(); 320 int w = preview.getIntrinsicWidth(); 321 int h = preview.getIntrinsicHeight(); 322 if (createItemInfo instanceof PendingAddWidgetInfo) { 323 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 324 int[] spanXY = CellLayout.rectToCell(getResources(), 325 createWidgetInfo.minWidth, createWidgetInfo.minHeight, null); 326 createItemInfo.spanX = spanXY[0]; 327 createItemInfo.spanY = spanXY[1]; 328 329 b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 330 renderDrawableToBitmap(preview, b, 0, 0, w, h, 1, 1); 331 } else { 332 // Workaround for the fact that we don't keep the original ResolveInfo associated with 333 // the shortcut around. To get the icon, we just render the preview image (which has 334 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 335 b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 336 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 337 Canvas c = new Canvas(b); 338 preview.draw(c); 339 createItemInfo.spanX = createItemInfo.spanY = 1; 340 } 341 342 // Start the drag 343 mLauncher.lockScreenOrientation(); 344 mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, 345 createItemInfo.spanY, b); 346 mDragController.startDrag(image, b, this, createItemInfo, 347 DragController.DRAG_ACTION_COPY, null); 348 b.recycle(); 349 } 350 @Override 351 protected boolean beginDragging(View v) { 352 if (!super.beginDragging(v)) return false; 353 354 355 if (v instanceof PagedViewIcon) { 356 beginDraggingApplication(v); 357 } else if (v instanceof PagedViewWidget) { 358 beginDraggingWidget(v); 359 } 360 361 // Go into spring loaded mode 362 int currentPageIndex = mLauncher.getWorkspace().getCurrentPage(); 363 CellLayout currentPage = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPageIndex); 364 mLauncher.enterSpringLoadedDragMode(currentPage); 365 return true; 366 } 367 private void endDragging(boolean success) { 368 post(new Runnable() { 369 // Once the drag operation has fully completed, hence the post, we want to disable the 370 // deleteZone and the appInfoButton in all apps, and re-enable the instance which 371 // live in the workspace 372 public void run() { 373 // if onDestroy was called on Launcher, we might have already deleted the 374 // all apps delete zone / info button, so check if they are null 375 DeleteZone allAppsDeleteZone = 376 (DeleteZone) mLauncher.findViewById(R.id.all_apps_delete_zone); 377 ApplicationInfoDropTarget allAppsInfoButton = 378 (ApplicationInfoDropTarget) mLauncher.findViewById(R.id.all_apps_info_target); 379 380 if (allAppsDeleteZone != null) allAppsDeleteZone.setDragAndDropEnabled(false); 381 if (allAppsInfoButton != null) allAppsInfoButton.setDragAndDropEnabled(false); 382 } 383 }); 384 mLauncher.exitSpringLoadedDragMode(); 385 mLauncher.getWorkspace().onDragStopped(success); 386 mLauncher.unlockScreenOrientation(); 387 388 } 389 390 /* 391 * DragSource implementation 392 */ 393 @Override 394 public void onDragViewVisible() {} 395 @Override 396 public void onDropCompleted(View target, DragObject d, boolean success) { 397 endDragging(success); 398 399 // Display an error message if the drag failed due to there not being enough space on the 400 // target layout we were dropping on. 401 if (!success) { 402 boolean showOutOfSpaceMessage = false; 403 if (target instanceof Workspace) { 404 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 405 Workspace workspace = (Workspace) target; 406 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 407 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 408 if (layout != null) { 409 layout.calculateSpans(itemInfo); 410 showOutOfSpaceMessage = 411 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 412 } 413 } 414 // TODO-APPS_CUSTOMIZE: We need to handle this for folders as well later. 415 if (showOutOfSpaceMessage) { 416 mLauncher.showOutOfSpaceMessage(); 417 } 418 } 419 } 420 421 public void setContentType(ContentType type) { 422 mContentType = type; 423 setCurrentPage(0); 424 invalidatePageData(); 425 } 426 427 /* 428 * Apps PagedView implementation 429 */ 430 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 431 int childCount = layout.getChildCount(); 432 for (int i = 0; i < childCount; ++i) { 433 layout.getChildAt(i).setVisibility(visibility); 434 } 435 } 436 private void setupPage(PagedViewCellLayout layout) { 437 layout.setCellCount(mCellCountX, mCellCountY); 438 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 439 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 440 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 441 442 // Note: We force a measure here to get around the fact that when we do layout calculations 443 // immediately after syncing, we don't have a proper width. That said, we already know the 444 // expected page width, so we can actually optimize by hiding all the TextView-based 445 // children that are expensive to measure, and let that happen naturally later. 446 setVisibilityOnChildren(layout, View.GONE); 447 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 448 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 449 layout.setMinimumWidth(getPageContentWidth()); 450 layout.measure(widthSpec, heightSpec); 451 setVisibilityOnChildren(layout, View.VISIBLE); 452 } 453 public void syncAppsPages() { 454 // Ensure that we have the right number of pages 455 Context context = getContext(); 456 int numPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 457 for (int i = 0; i < numPages; ++i) { 458 PagedViewCellLayout layout = new PagedViewCellLayout(context); 459 setupPage(layout); 460 addView(layout); 461 } 462 } 463 public void syncAppsPageItems(int page) { 464 // ensure that we have the right number of items on the pages 465 int numPages = getPageCount(); 466 int numCells = mCellCountX * mCellCountY; 467 int startIndex = page * numCells; 468 int endIndex = Math.min(startIndex + numCells, mApps.size()); 469 PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page); 470 layout.removeAllViewsOnPage(); 471 for (int i = startIndex; i < endIndex; ++i) { 472 ApplicationInfo info = mApps.get(i); 473 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 474 R.layout.apps_customize_application, layout, false); 475 icon.applyFromApplicationInfo( 476 info, mPageViewIconCache, true, (numPages > 1)); 477 icon.setOnClickListener(this); 478 icon.setOnLongClickListener(this); 479 icon.setOnTouchListener(this); 480 481 int index = i - startIndex; 482 int x = index % mCellCountX; 483 int y = index / mCellCountX; 484 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 485 } 486 487 // Create the hardware layers 488 layout.allowHardwareLayerCreation(); 489 layout.createHardwareLayers(); 490 } 491 /* 492 * Widgets PagedView implementation 493 */ 494 private void setupPage(PagedViewGridLayout layout) { 495 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 496 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 497 498 // Note: We force a measure here to get around the fact that when we do layout calculations 499 // immediately after syncing, we don't have a proper width. That said, we already know the 500 // expected page width, so we can actually optimize by hiding all the TextView-based 501 // children that are expensive to measure, and let that happen naturally later. 502 setVisibilityOnChildren(layout, View.GONE); 503 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 504 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 505 layout.setMinimumWidth(getPageContentWidth()); 506 layout.measure(widthSpec, heightSpec); 507 setVisibilityOnChildren(layout, View.VISIBLE); 508 } 509 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 510 float scaleX, float scaleY) { 511 Canvas c = new Canvas(); 512 if (bitmap != null) c.setBitmap(bitmap); 513 c.save(); 514 c.scale(scaleX, scaleY); 515 Rect oldBounds = d.copyBounds(); 516 d.setBounds(x, y, x + w, y + h); 517 d.draw(c); 518 d.setBounds(oldBounds); // Restore the bounds 519 c.restore(); 520 } 521 private FastBitmapDrawable getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { 522 // Return the cached version if necessary 523 Bitmap cachedBitmap = mWidgetPreviewCache.get(info); 524 if (cachedBitmap != null) { 525 return new FastBitmapDrawable(cachedBitmap); 526 } 527 528 Resources resources = mLauncher.getResources(); 529 int iconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 530 // We only need to make it wide enough so as not allow the preview to be scaled 531 int expectedWidth = cellWidth; 532 int expectedHeight = mWidgetPreviewIconPaddedDimension; 533 534 // Render the icon 535 Bitmap preview = Bitmap.createBitmap(expectedWidth, expectedHeight, Config.ARGB_8888); 536 Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); 537 renderDrawableToBitmap(icon, preview, 0, 0, iconSize, iconSize, 1f, 1f); 538 FastBitmapDrawable iconDrawable = new FastBitmapDrawable(preview); 539 iconDrawable.setBounds(0, 0, expectedWidth, expectedHeight); 540 mWidgetPreviewCache.put(info, preview); 541 return iconDrawable; 542 } 543 private FastBitmapDrawable getWidgetPreview(AppWidgetProviderInfo info, int cellHSpan, 544 int cellVSpan, int cellWidth, int cellHeight) { 545 // Return the cached version if necessary 546 Bitmap cachedBitmap = mWidgetPreviewCache.get(info); 547 if (cachedBitmap != null) { 548 return new FastBitmapDrawable(cachedBitmap); 549 } 550 551 // Calculate the size of the drawable 552 cellHSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellHSpan)); 553 cellVSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellVSpan)); 554 int expectedWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 555 int expectedHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 556 557 // Scale down the bitmap to fit the space 558 float widgetPreviewScale = (float) cellWidth / expectedWidth; 559 expectedWidth = (int) (widgetPreviewScale * expectedWidth); 560 expectedHeight = (int) (widgetPreviewScale * expectedHeight); 561 562 // Load the preview image if possible 563 String packageName = info.provider.getPackageName(); 564 Drawable drawable = null; 565 FastBitmapDrawable newDrawable = null; 566 if (info.previewImage != 0) { 567 drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); 568 if (drawable == null) { 569 Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) 570 + " for provider: " + info.provider); 571 } else { 572 // Scale down the preview to the dimensions we want 573 int imageWidth = drawable.getIntrinsicWidth(); 574 int imageHeight = drawable.getIntrinsicHeight(); 575 float aspect = (float) imageWidth / imageHeight; 576 int newWidth = imageWidth; 577 int newHeight = imageHeight; 578 if (aspect > 1f) { 579 newWidth = expectedWidth; 580 newHeight = (int) (imageHeight * ((float) expectedWidth / imageWidth)); 581 } else { 582 newHeight = expectedHeight; 583 newWidth = (int) (imageWidth * ((float) expectedHeight / imageHeight)); 584 } 585 586 Bitmap preview = Bitmap.createBitmap(newWidth, newHeight, Config.ARGB_8888); 587 renderDrawableToBitmap(drawable, preview, 0, 0, newWidth, newHeight, 1f, 1f); 588 newDrawable = new FastBitmapDrawable(preview); 589 newDrawable.setBounds(0, 0, newWidth, newHeight); 590 mWidgetPreviewCache.put(info, preview); 591 } 592 } 593 594 // Generate a preview image if we couldn't load one 595 if (drawable == null) { 596 Resources resources = mLauncher.getResources(); 597 int iconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 598 599 // Specify the dimensions of the bitmap 600 if (info.minWidth >= info.minHeight) { 601 expectedWidth = cellWidth; 602 expectedHeight = mWidgetPreviewIconPaddedDimension; 603 } else { 604 // Note that in vertical widgets, we might not have enough space due to the text 605 // label, so be conservative and use the width as a height bound 606 expectedWidth = mWidgetPreviewIconPaddedDimension; 607 expectedHeight = cellWidth; 608 } 609 610 Bitmap preview = Bitmap.createBitmap(expectedWidth, expectedHeight, Config.ARGB_8888); 611 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, expectedWidth, 612 expectedHeight, 1f,1f); 613 614 // Draw the icon in the top left corner 615 try { 616 Drawable icon = null; 617 if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); 618 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 619 620 int offset = (int) (iconSize * sWidgetPreviewIconPaddingPercentage); 621 renderDrawableToBitmap(icon, preview, offset, offset, iconSize, iconSize, 1f, 1f); 622 } catch (Resources.NotFoundException e) {} 623 624 newDrawable = new FastBitmapDrawable(preview); 625 newDrawable.setBounds(0, 0, expectedWidth, expectedHeight); 626 mWidgetPreviewCache.put(info, preview); 627 } 628 return newDrawable; 629 } 630 public void syncWidgetPages() { 631 // Ensure that we have the right number of pages 632 Context context = getContext(); 633 int numWidgetsPerPage = mWidgetCountX * mWidgetCountY; 634 int numPages = (int) Math.ceil(mWidgets.size() / (float) numWidgetsPerPage); 635 for (int i = 0; i < numPages; ++i) { 636 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 637 mWidgetCountY); 638 setupPage(layout); 639 addView(layout); 640 } 641 } 642 public void syncWidgetPageItems(int page) { 643 PagedViewGridLayout layout = (PagedViewGridLayout) getChildAt(page); 644 layout.removeAllViews(); 645 646 // Calculate the dimensions of each cell we are giving to each widget 647 int numWidgetsPerPage = mWidgetCountX * mWidgetCountY; 648 int numPages = (int) Math.ceil(mWidgets.size() / (float) numWidgetsPerPage); 649 int offset = page * numWidgetsPerPage; 650 int cellWidth = ((mWidgetSpacingLayout.getContentWidth() - mPageLayoutWidthGap 651 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 652 int cellHeight = ((mWidgetSpacingLayout.getContentHeight() - mPageLayoutHeightGap 653 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 654 for (int i = 0; i < Math.min(numWidgetsPerPage, mWidgets.size() - offset); ++i) { 655 Object rawInfo = mWidgets.get(offset + i); 656 PendingAddItemInfo createItemInfo = null; 657 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 658 R.layout.apps_customize_widget, layout, false); 659 if (rawInfo instanceof AppWidgetProviderInfo) { 660 // Fill in the widget information 661 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 662 createItemInfo = new PendingAddWidgetInfo(info, null, null); 663 final int[] cellSpans = CellLayout.rectToCell(getResources(), info.minWidth, 664 info.minHeight, null); 665 FastBitmapDrawable preview = getWidgetPreview(info, cellSpans[0], cellSpans[1], 666 cellWidth, cellHeight); 667 widget.applyFromAppWidgetProviderInfo(info, preview, -1, cellSpans, 668 mPageViewIconCache, (numPages > 1)); 669 widget.setTag(createItemInfo); 670 } else if (rawInfo instanceof ResolveInfo) { 671 // Fill in the shortcuts information 672 ResolveInfo info = (ResolveInfo) rawInfo; 673 createItemInfo = new PendingAddItemInfo(); 674 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 675 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 676 info.activityInfo.name); 677 FastBitmapDrawable preview = getShortcutPreview(info, cellWidth, cellHeight); 678 widget.applyFromResolveInfo(mPackageManager, info, preview, mPageViewIconCache, 679 (numPages > 1)); 680 widget.setTag(createItemInfo); 681 } 682 widget.setOnClickListener(this); 683 widget.setOnLongClickListener(this); 684 widget.setOnTouchListener(this); 685 686 // Layout each widget 687 int ix = i % mWidgetCountX; 688 int iy = i / mWidgetCountX; 689 PagedViewGridLayout.LayoutParams lp = new PagedViewGridLayout.LayoutParams(cellWidth, 690 cellHeight); 691 lp.leftMargin = (ix * cellWidth) + (ix * mWidgetWidthGap); 692 lp.topMargin = (iy * cellHeight) + (iy * mWidgetHeightGap); 693 layout.addView(widget, lp); 694 } 695 } 696 697 @Override 698 public void syncPages() { 699 removeAllViews(); 700 switch (mContentType) { 701 case Applications: 702 syncAppsPages(); 703 break; 704 case Widgets: 705 syncWidgetPages(); 706 break; 707 } 708 } 709 @Override 710 public void syncPageItems(int page) { 711 switch (mContentType) { 712 case Applications: 713 syncAppsPageItems(page); 714 break; 715 case Widgets: 716 syncWidgetPageItems(page); 717 break; 718 } 719 } 720 721 /** 722 * Used by the parent to get the content width to set the tab bar to 723 * @return 724 */ 725 public int getPageContentWidth() { 726 return mContentWidth; 727 } 728 729 @Override 730 protected void onPageBeginMoving() { 731 /* TO BE ENABLED LATER 732 setChildrenDrawnWithCacheEnabled(true); 733 for (int i = 0; i < getChildCount(); ++i) { 734 View v = getChildAt(i); 735 if (v instanceof PagedViewCellLayout) { 736 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(true); 737 } 738 } 739 */ 740 super.onPageBeginMoving(); 741 } 742 743 @Override 744 protected void onPageEndMoving() { 745 /* TO BE ENABLED LATER 746 for (int i = 0; i < getChildCount(); ++i) { 747 View v = getChildAt(i); 748 if (v instanceof PagedViewCellLayout) { 749 ((PagedViewCellLayout) v).setChildrenDrawingCacheEnabled(false); 750 } 751 } 752 setChildrenDrawnWithCacheEnabled(false); 753 */ 754 super.onPageEndMoving(); 755 } 756 757 /* 758 * AllAppsView implementation 759 */ 760 @Override 761 public void setup(Launcher launcher, DragController dragController) { 762 mLauncher = launcher; 763 mDragController = dragController; 764 } 765 @Override 766 public void zoom(float zoom, boolean animate) { 767 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 768 } 769 @Override 770 public boolean isVisible() { 771 return (getVisibility() == VISIBLE); 772 } 773 @Override 774 public boolean isAnimating() { 775 return false; 776 } 777 @Override 778 public void setApps(ArrayList<ApplicationInfo> list) { 779 mApps = list; 780 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 781 782 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 783 // a layout to do this test and invalidate the page data when ready. 784 if (testDataReady()) requestLayout(); 785 } 786 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 787 // We add it in place, in alphabetical order 788 int count = list.size(); 789 for (int i = 0; i < count; ++i) { 790 ApplicationInfo info = list.get(i); 791 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 792 if (index < 0) { 793 mApps.add(-(index + 1), info); 794 } 795 } 796 } 797 @Override 798 public void addApps(ArrayList<ApplicationInfo> list) { 799 addAppsWithoutInvalidate(list); 800 invalidatePageData(); 801 } 802 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 803 ComponentName removeComponent = item.intent.getComponent(); 804 int length = list.size(); 805 for (int i = 0; i < length; ++i) { 806 ApplicationInfo info = list.get(i); 807 if (info.intent.getComponent().equals(removeComponent)) { 808 return i; 809 } 810 } 811 return -1; 812 } 813 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 814 // loop through all the apps and remove apps that have the same component 815 int length = list.size(); 816 for (int i = 0; i < length; ++i) { 817 ApplicationInfo info = list.get(i); 818 int removeIndex = findAppByComponent(mApps, info); 819 if (removeIndex > -1) { 820 mApps.remove(removeIndex); 821 mPageViewIconCache.removeOutline(new PagedViewIconCache.Key(info)); 822 } 823 } 824 } 825 @Override 826 public void removeApps(ArrayList<ApplicationInfo> list) { 827 removeAppsWithoutInvalidate(list); 828 invalidatePageData(); 829 } 830 @Override 831 public void updateApps(ArrayList<ApplicationInfo> list) { 832 // We remove and re-add the updated applications list because it's properties may have 833 // changed (ie. the title), and this will ensure that the items will be in their proper 834 // place in the list. 835 removeAppsWithoutInvalidate(list); 836 addAppsWithoutInvalidate(list); 837 invalidatePageData(); 838 } 839 @Override 840 public void reset() { 841 if (mContentType != ContentType.Applications) { 842 // Reset to the first page of the Apps pane 843 AppsCustomizeTabHost tabs = (AppsCustomizeTabHost) 844 mLauncher.findViewById(R.id.apps_customize_pane); 845 tabs.setCurrentTabByTag(tabs.getTabTagForContentType(ContentType.Applications)); 846 } else { 847 setCurrentPage(0); 848 invalidatePageData(); 849 } 850 } 851 @Override 852 public void dumpState() { 853 // TODO: Dump information related to current list of Applications, Widgets, etc. 854 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 855 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 856 } 857 private void dumpAppWidgetProviderInfoList(String tag, String label, 858 List<Object> list) { 859 Log.d(tag, label + " size=" + list.size()); 860 for (Object i: list) { 861 if (i instanceof AppWidgetProviderInfo) { 862 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 863 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 864 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 865 + " initialLayout=" + info.initialLayout 866 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 867 } else if (i instanceof ResolveInfo) { 868 ResolveInfo info = (ResolveInfo) i; 869 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 870 + info.icon); 871 } 872 } 873 } 874 @Override 875 public void surrender() { 876 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 877 // should stop this now. 878 } 879 880 @Override 881 protected int getPageWidthForScrollingIndicator() { 882 return getPageContentWidth(); 883 } 884} 885