AppsCustomizePagedView.java revision 5e368ffbad2fb08e3eadab98eeefd4e1d05bdb2b
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.AppWidgetHostView; 23import android.appwidget.AppWidgetManager; 24import android.appwidget.AppWidgetProviderInfo; 25import android.content.ComponentName; 26import android.content.Context; 27import android.content.Intent; 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.MaskFilter; 37import android.graphics.Matrix; 38import android.graphics.Paint; 39import android.graphics.Rect; 40import android.graphics.RectF; 41import android.graphics.TableMaskFilter; 42import android.graphics.drawable.Drawable; 43import android.os.AsyncTask; 44import android.os.Process; 45import android.util.AttributeSet; 46import android.util.Log; 47import android.view.Gravity; 48import android.view.KeyEvent; 49import android.view.LayoutInflater; 50import android.view.MotionEvent; 51import android.view.View; 52import android.view.ViewGroup; 53import android.view.animation.AccelerateInterpolator; 54import android.view.animation.DecelerateInterpolator; 55import android.widget.GridLayout; 56import android.widget.ImageView; 57import android.widget.Toast; 58 59import com.android.launcher.R; 60import com.android.launcher2.DropTarget.DragObject; 61 62import java.util.ArrayList; 63import java.util.Collections; 64import java.util.Iterator; 65import java.util.List; 66 67/** 68 * A simple callback interface which also provides the results of the task. 69 */ 70interface AsyncTaskCallback { 71 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 72} 73 74/** 75 * The data needed to perform either of the custom AsyncTasks. 76 */ 77class AsyncTaskPageData { 78 enum Type { 79 LoadWidgetPreviewData 80 } 81 82 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 83 AsyncTaskCallback postR) { 84 page = p; 85 items = l; 86 sourceImages = si; 87 generatedImages = new ArrayList<Bitmap>(); 88 maxImageWidth = maxImageHeight = -1; 89 doInBackgroundCallback = bgR; 90 postExecuteCallback = postR; 91 } 92 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 93 AsyncTaskCallback postR) { 94 page = p; 95 items = l; 96 generatedImages = new ArrayList<Bitmap>(); 97 maxImageWidth = cw; 98 maxImageHeight = ch; 99 doInBackgroundCallback = bgR; 100 postExecuteCallback = postR; 101 } 102 void cleanup(boolean cancelled) { 103 // Clean up any references to source/generated bitmaps 104 if (sourceImages != null) { 105 if (cancelled) { 106 for (Bitmap b : sourceImages) { 107 b.recycle(); 108 } 109 } 110 sourceImages.clear(); 111 } 112 if (generatedImages != null) { 113 if (cancelled) { 114 for (Bitmap b : generatedImages) { 115 b.recycle(); 116 } 117 } 118 generatedImages.clear(); 119 } 120 } 121 int page; 122 ArrayList<Object> items; 123 ArrayList<Bitmap> sourceImages; 124 ArrayList<Bitmap> generatedImages; 125 int maxImageWidth; 126 int maxImageHeight; 127 AsyncTaskCallback doInBackgroundCallback; 128 AsyncTaskCallback postExecuteCallback; 129} 130 131/** 132 * A generic template for an async task used in AppsCustomize. 133 */ 134class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 135 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 136 page = p; 137 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 138 dataType = ty; 139 } 140 @Override 141 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 142 if (params.length != 1) return null; 143 // Load each of the widget previews in the background 144 params[0].doInBackgroundCallback.run(this, params[0]); 145 return params[0]; 146 } 147 @Override 148 protected void onPostExecute(AsyncTaskPageData result) { 149 // All the widget previews are loaded, so we can just callback to inflate the page 150 result.postExecuteCallback.run(this, result); 151 } 152 153 void setThreadPriority(int p) { 154 threadPriority = p; 155 } 156 void syncThreadPriority() { 157 Process.setThreadPriority(threadPriority); 158 } 159 160 // The page that this async task is associated with 161 AsyncTaskPageData.Type dataType; 162 int page; 163 int threadPriority; 164} 165 166/** 167 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 168 */ 169public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 170 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource, 171 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener, 172 LauncherTransitionable { 173 static final String TAG = "AppsCustomizePagedView"; 174 175 /** 176 * The different content types that this paged view can show. 177 */ 178 public enum ContentType { 179 Applications, 180 Widgets 181 } 182 183 // Refs 184 private Launcher mLauncher; 185 private DragController mDragController; 186 private final LayoutInflater mLayoutInflater; 187 private final PackageManager mPackageManager; 188 189 // Save and Restore 190 private int mSaveInstanceStateItemIndex = -1; 191 private PagedViewIcon mPressedIcon; 192 193 // Content 194 private ArrayList<ApplicationInfo> mApps; 195 private ArrayList<Object> mWidgets; 196 197 // Cling 198 private boolean mHasShownAllAppsCling; 199 private int mClingFocusedX; 200 private int mClingFocusedY; 201 202 // Caching 203 private Canvas mCanvas; 204 private Drawable mDefaultWidgetBackground; 205 private IconCache mIconCache; 206 207 // Dimens 208 private int mContentWidth; 209 private int mAppIconSize; 210 private int mMaxAppCellCountX, mMaxAppCellCountY; 211 private int mWidgetCountX, mWidgetCountY; 212 private int mWidgetWidthGap, mWidgetHeightGap; 213 private final int mWidgetPreviewIconPaddedDimension; 214 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 215 private PagedViewCellLayout mWidgetSpacingLayout; 216 private int mNumAppsPages; 217 private int mNumWidgetPages; 218 219 // Relating to the scroll and overscroll effects 220 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 221 private static float CAMERA_DISTANCE = 6500; 222 private static float TRANSITION_SCALE_FACTOR = 0.74f; 223 private static float TRANSITION_PIVOT = 0.65f; 224 private static float TRANSITION_MAX_ROTATION = 22; 225 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 226 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 227 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 228 229 // Previews & outlines 230 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 231 private static final int sPageSleepDelay = 200; 232 233 private Runnable mInflateWidgetRunnable = null; 234 private Runnable mBindWidgetRunnable = null; 235 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 236 static final int WIDGET_BOUND = 0; 237 static final int WIDGET_INFLATED = 1; 238 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 239 int mWidgetLoadingId = -1; 240 PendingAddWidgetInfo mCreateWidgetInfo = null; 241 private boolean mDraggingWidget = false; 242 243 // Deferral of loading widget previews during launcher transitions 244 private boolean mInTransition; 245 private ArrayList<AsyncTaskPageData> mDeferredSyncWidgetPageItems = 246 new ArrayList<AsyncTaskPageData>(); 247 248 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 249 super(context, attrs); 250 mLayoutInflater = LayoutInflater.from(context); 251 mPackageManager = context.getPackageManager(); 252 mApps = new ArrayList<ApplicationInfo>(); 253 mWidgets = new ArrayList<Object>(); 254 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 255 mCanvas = new Canvas(); 256 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 257 258 // Save the default widget preview background 259 Resources resources = context.getResources(); 260 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 261 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 262 263 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 264 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 265 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 266 mWidgetWidthGap = 267 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 268 mWidgetHeightGap = 269 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 270 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 271 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 272 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 273 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 274 a.recycle(); 275 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 276 277 // The padding on the non-matched dimension for the default widget preview icons 278 // (top + bottom) 279 mWidgetPreviewIconPaddedDimension = 280 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 281 mFadeInAdjacentScreens = false; 282 } 283 284 @Override 285 protected void init() { 286 super.init(); 287 mCenterPagesVertically = false; 288 289 Context context = getContext(); 290 Resources r = context.getResources(); 291 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 292 } 293 294 @Override 295 protected void onUnhandledTap(MotionEvent ev) { 296 if (LauncherApplication.isScreenLarge()) { 297 // Dismiss AppsCustomize if we tap 298 mLauncher.showWorkspace(true); 299 } 300 } 301 302 /** Returns the item index of the center item on this page so that we can restore to this 303 * item index when we rotate. */ 304 private int getMiddleComponentIndexOnCurrentPage() { 305 int i = -1; 306 if (getPageCount() > 0) { 307 int currentPage = getCurrentPage(); 308 if (currentPage < mNumAppsPages) { 309 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 310 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 311 int numItemsPerPage = mCellCountX * mCellCountY; 312 int childCount = childrenLayout.getChildCount(); 313 if (childCount > 0) { 314 i = (currentPage * numItemsPerPage) + (childCount / 2); 315 } 316 } else { 317 int numApps = mApps.size(); 318 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 319 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 320 int childCount = layout.getChildCount(); 321 if (childCount > 0) { 322 i = numApps + 323 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 324 } 325 } 326 } 327 return i; 328 } 329 330 /** Get the index of the item to restore to if we need to restore the current page. */ 331 int getSaveInstanceStateIndex() { 332 if (mSaveInstanceStateItemIndex == -1) { 333 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 334 } 335 return mSaveInstanceStateItemIndex; 336 } 337 338 /** Returns the page in the current orientation which is expected to contain the specified 339 * item index. */ 340 int getPageForComponent(int index) { 341 if (index < 0) return 0; 342 343 if (index < mApps.size()) { 344 int numItemsPerPage = mCellCountX * mCellCountY; 345 return (index / numItemsPerPage); 346 } else { 347 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 348 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 349 } 350 } 351 352 /** 353 * This differs from isDataReady as this is the test done if isDataReady is not set. 354 */ 355 private boolean testDataReady() { 356 // We only do this test once, and we default to the Applications page, so we only really 357 // have to wait for there to be apps. 358 // TODO: What if one of them is validly empty 359 return !mApps.isEmpty() && !mWidgets.isEmpty(); 360 } 361 362 /** Restores the page for an item at the specified index */ 363 void restorePageForIndex(int index) { 364 if (index < 0) return; 365 mSaveInstanceStateItemIndex = index; 366 } 367 368 private void updatePageCounts() { 369 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 370 (float) (mWidgetCountX * mWidgetCountY)); 371 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 372 } 373 374 protected void onDataReady(int width, int height) { 375 // Note that we transpose the counts in portrait so that we get a similar layout 376 boolean isLandscape = getResources().getConfiguration().orientation == 377 Configuration.ORIENTATION_LANDSCAPE; 378 int maxCellCountX = Integer.MAX_VALUE; 379 int maxCellCountY = Integer.MAX_VALUE; 380 if (LauncherApplication.isScreenLarge()) { 381 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 382 LauncherModel.getCellCountY()); 383 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 384 LauncherModel.getCellCountX()); 385 } 386 if (mMaxAppCellCountX > -1) { 387 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 388 } 389 if (mMaxAppCellCountY > -1) { 390 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 391 } 392 393 // Now that the data is ready, we can calculate the content width, the number of cells to 394 // use for each page 395 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 396 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 397 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 398 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 399 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 400 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 401 updatePageCounts(); 402 403 // Force a measure to update recalculate the gaps 404 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 405 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 406 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 407 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 408 409 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 410 final boolean hostIsTransitioning = host.isTransitioning(); 411 412 // Restore the page 413 int page = getPageForComponent(mSaveInstanceStateItemIndex); 414 invalidatePageData(Math.max(0, page), hostIsTransitioning); 415 416 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 417 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 418 // returned while animating) 419 if (!hostIsTransitioning) { 420 post(new Runnable() { 421 @Override 422 public void run() { 423 showAllAppsCling(); 424 } 425 }); 426 } 427 } 428 429 void showAllAppsCling() { 430 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 431 mHasShownAllAppsCling = true; 432 // Calculate the position for the cling punch through 433 int[] offset = new int[2]; 434 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 435 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 436 // PagedViews are centered horizontally but top aligned 437 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 438 offset[0]; 439 pos[1] += offset[1]; 440 mLauncher.showFirstRunAllAppsCling(pos); 441 } 442 } 443 444 @Override 445 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 446 int width = MeasureSpec.getSize(widthMeasureSpec); 447 int height = MeasureSpec.getSize(heightMeasureSpec); 448 if (!isDataReady()) { 449 if (testDataReady()) { 450 setDataIsReady(); 451 setMeasuredDimension(width, height); 452 onDataReady(width, height); 453 } 454 } 455 456 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 457 } 458 459 public void onPackagesUpdated() { 460 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 461 // by a broadcast receiver, and in order for it to work correctly, we need to know that 462 // the AppWidgetService has already received and processed the same broadcast. Since there 463 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 464 // we should have a more precise way of ensuring the AppWidgetService is up to date. 465 postDelayed(new Runnable() { 466 public void run() { 467 updatePackages(); 468 } 469 }, 500); 470 } 471 472 public void updatePackages() { 473 // Get the list of widgets and shortcuts 474 boolean wasEmpty = mWidgets.isEmpty(); 475 mWidgets.clear(); 476 List<AppWidgetProviderInfo> widgets = 477 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 478 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 479 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 480 for (AppWidgetProviderInfo widget : widgets) { 481 if (widget.minWidth > 0 && widget.minHeight > 0) { 482 // Ensure that all widgets we show can be added on a workspace of this size 483 int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget); 484 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget); 485 int minSpanX = Math.min(spanXY[0], minSpanXY[0]); 486 int minSpanY = Math.min(spanXY[1], minSpanXY[1]); 487 if (minSpanX <= LauncherModel.getCellCountX() && 488 minSpanY <= LauncherModel.getCellCountY()) { 489 mWidgets.add(widget); 490 } 491 } else { 492 Log.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" + 493 widget.minWidth + ", " + widget.minHeight + ")"); 494 } 495 } 496 mWidgets.addAll(shortcuts); 497 Collections.sort(mWidgets, 498 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 499 updatePageCounts(); 500 501 if (wasEmpty) { 502 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 503 // a layout to do this test and invalidate the page data when ready. 504 if (testDataReady()) requestLayout(); 505 } else { 506 cancelAllTasks(); 507 invalidatePageData(); 508 } 509 } 510 511 @Override 512 public void onClick(View v) { 513 // When we have exited all apps or are in transition, disregard clicks 514 if (!mLauncher.isAllAppsCustomizeOpen() || 515 mLauncher.getWorkspace().isSwitchingState()) return; 516 517 if (v instanceof PagedViewIcon) { 518 // Animate some feedback to the click 519 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 520 521 // Lock the drawable state to pressed until we return to Launcher 522 if (mPressedIcon != null) { 523 mPressedIcon.lockDrawableState(); 524 } 525 526 // NOTE: We want all transitions from launcher to act as if the wallpaper were enabled 527 // to be consistent. So re-enable the flag here, and we will re-disable it as necessary 528 // when Launcher resumes and we are still in AllApps. 529 mLauncher.updateWallpaperVisibility(true); 530 mLauncher.startActivitySafely(v, appInfo.intent, appInfo); 531 532 } else if (v instanceof PagedViewWidget) { 533 // Let the user know that they have to long press to add a widget 534 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 535 Toast.LENGTH_SHORT).show(); 536 537 // Create a little animation to show that the widget can move 538 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 539 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 540 AnimatorSet bounce = new AnimatorSet(); 541 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 542 tyuAnim.setDuration(125); 543 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 544 tydAnim.setDuration(100); 545 bounce.play(tyuAnim).before(tydAnim); 546 bounce.setInterpolator(new AccelerateInterpolator()); 547 bounce.start(); 548 } 549 } 550 551 public boolean onKey(View v, int keyCode, KeyEvent event) { 552 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 553 } 554 555 /* 556 * PagedViewWithDraggableItems implementation 557 */ 558 @Override 559 protected void determineDraggingStart(android.view.MotionEvent ev) { 560 // Disable dragging by pulling an app down for now. 561 } 562 563 private void beginDraggingApplication(View v) { 564 mLauncher.getWorkspace().onDragStartedWithItem(v); 565 mLauncher.getWorkspace().beginDragShared(v, this); 566 } 567 568 private void preloadWidget(final PendingAddWidgetInfo info) { 569 final AppWidgetProviderInfo pInfo = info.info; 570 if (pInfo.configure != null) { 571 return; 572 } 573 574 mBindWidgetRunnable = new Runnable() { 575 @Override 576 public void run() { 577 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 578 if (AppWidgetManager.getInstance(mLauncher) 579 .bindAppWidgetIdIfAllowed(mWidgetLoadingId, info.componentName)) { 580 mWidgetCleanupState = WIDGET_BOUND; 581 } 582 } 583 }; 584 post(mBindWidgetRunnable); 585 586 mInflateWidgetRunnable = new Runnable() { 587 @Override 588 public void run() { 589 AppWidgetHostView hostView = mLauncher. 590 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 591 info.boundWidget = hostView; 592 mWidgetCleanupState = WIDGET_INFLATED; 593 hostView.setVisibility(INVISIBLE); 594 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 595 info.spanY, info, false); 596 597 // We want the first widget layout to be the correct size. This will be important 598 // for width size reporting to the AppWidgetManager. 599 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 600 unScaledSize[1]); 601 lp.x = lp.y = 0; 602 lp.customPosition = true; 603 hostView.setLayoutParams(lp); 604 mLauncher.getDragLayer().addView(hostView); 605 } 606 }; 607 post(mInflateWidgetRunnable); 608 } 609 610 @Override 611 public void onShortPress(View v) { 612 // We are anticipating a long press, and we use this time to load bind and instantiate 613 // the widget. This will need to be cleaned up if it turns out no long press occurs. 614 if (mCreateWidgetInfo != null) { 615 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 616 cleanupWidgetPreloading(false); 617 } 618 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 619 preloadWidget(mCreateWidgetInfo); 620 } 621 622 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 623 if (!widgetWasAdded) { 624 // If the widget was not added, we may need to do further cleanup. 625 PendingAddWidgetInfo info = mCreateWidgetInfo; 626 mCreateWidgetInfo = null; 627 // First step was to allocate a widget id, revert that. 628 if ((mWidgetCleanupState == WIDGET_BOUND || mWidgetCleanupState == WIDGET_INFLATED) && 629 mWidgetLoadingId != -1) { 630 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 631 } 632 if (mWidgetCleanupState == WIDGET_BOUND) { 633 // We never actually inflated the widget, so remove the callback to do so. 634 removeCallbacks(mInflateWidgetRunnable); 635 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 636 // The widget was inflated and added to the DragLayer -- remove it. 637 AppWidgetHostView widget = info.boundWidget; 638 mLauncher.getDragLayer().removeView(widget); 639 } 640 } 641 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 642 mWidgetLoadingId = -1; 643 mCreateWidgetInfo = null; 644 PagedViewWidget.resetShortPressTarget(); 645 } 646 647 @Override 648 public void cleanUpShortPress(View v) { 649 if (!mDraggingWidget) { 650 cleanupWidgetPreloading(false); 651 } 652 } 653 654 private boolean beginDraggingWidget(View v) { 655 mDraggingWidget = true; 656 // Get the widget preview as the drag representation 657 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 658 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 659 660 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 661 // we abort the drag. 662 if (image.getDrawable() == null) { 663 mDraggingWidget = false; 664 return false; 665 } 666 667 // Compose the drag image 668 Bitmap preview; 669 Bitmap outline; 670 float scale = 1f; 671 if (createItemInfo instanceof PendingAddWidgetInfo) { 672 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 673 createItemInfo = createWidgetInfo; 674 int spanX = createItemInfo.spanX; 675 int spanY = createItemInfo.spanY; 676 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 677 createWidgetInfo, true); 678 679 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 680 float minScale = 1.25f; 681 int minWidth, minHeight; 682 minWidth = Math.max((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 683 minHeight = Math.max((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 684 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 685 createWidgetInfo.icon, spanX, spanY, minWidth, minHeight); 686 687 // Determine the image view drawable scale relative to the preview 688 float[] mv = new float[9]; 689 Matrix m = new Matrix(); 690 m.setRectToRect( 691 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 692 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 693 (float) previewDrawable.getIntrinsicHeight()), 694 Matrix.ScaleToFit.START); 695 m.getValues(mv); 696 scale = (float) mv[0]; 697 } else { 698 // Workaround for the fact that we don't keep the original ResolveInfo associated with 699 // the shortcut around. To get the icon, we just render the preview image (which has 700 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 701 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 702 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 703 Drawable d = image.getDrawable(); 704 mCanvas.setBitmap(preview); 705 mCanvas.translate((mWidgetPreviewIconPaddedDimension - d.getIntrinsicWidth()) / 2, 706 (mWidgetPreviewIconPaddedDimension - d.getIntrinsicHeight()) / 2); 707 d.draw(mCanvas); 708 mCanvas.setBitmap(null); 709 createItemInfo.spanX = createItemInfo.spanY = 1; 710 } 711 712 // We use a custom alpha clip table for the default widget previews 713 Paint alphaClipPaint = null; 714 if (createItemInfo instanceof PendingAddWidgetInfo) { 715 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 716 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 717 alphaClipPaint = new Paint(); 718 alphaClipPaint.setMaskFilter(alphaClipTable); 719 } 720 } 721 722 // Save the preview for the outline generation, then dim the preview 723 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 724 false); 725 726 // Start the drag 727 alphaClipPaint = null; 728 mLauncher.lockScreenOrientation(); 729 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 730 mDragController.startDrag(image, preview, this, createItemInfo, 731 DragController.DRAG_ACTION_COPY, null, scale); 732 outline.recycle(); 733 preview.recycle(); 734 return true; 735 } 736 737 @Override 738 protected boolean beginDragging(final View v) { 739 if (!super.beginDragging(v)) return false; 740 741 if (v instanceof PagedViewIcon) { 742 beginDraggingApplication(v); 743 } else if (v instanceof PagedViewWidget) { 744 if (!beginDraggingWidget(v)) { 745 return false; 746 } 747 } 748 749 // We delay entering spring-loaded mode slightly to make sure the UI 750 // thready is free of any work. 751 postDelayed(new Runnable() { 752 @Override 753 public void run() { 754 // We don't enter spring-loaded mode if the drag has been cancelled 755 if (mLauncher.getDragController().isDragging()) { 756 // Dismiss the cling 757 mLauncher.dismissAllAppsCling(null); 758 759 // Reset the alpha on the dragged icon before we drag 760 resetDrawableState(); 761 762 // Go into spring loaded mode (must happen before we startDrag()) 763 mLauncher.enterSpringLoadedDragMode(); 764 } 765 } 766 }, 150); 767 768 return true; 769 } 770 771 /** 772 * Clean up after dragging. 773 * 774 * @param target where the item was dragged to (can be null if the item was flung) 775 */ 776 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 777 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 778 !(target instanceof DeleteDropTarget))) { 779 // Exit spring loaded mode if we have not successfully dropped or have not handled the 780 // drop in Workspace 781 mLauncher.exitSpringLoadedDragMode(); 782 } 783 mLauncher.unlockScreenOrientation(false); 784 } 785 786 @Override 787 public View getContent() { 788 return null; 789 } 790 791 @Override 792 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 793 mInTransition = true; 794 if (toWorkspace) { 795 cancelAllTasks(); 796 } 797 } 798 799 @Override 800 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 801 } 802 803 @Override 804 public void onLauncherTransitionStep(Launcher l, float t) { 805 } 806 807 @Override 808 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 809 mInTransition = false; 810 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 811 onSyncWidgetPageItems(d); 812 } 813 mDeferredSyncWidgetPageItems.clear(); 814 mForceDrawAllChildrenNextFrame = !toWorkspace; 815 } 816 817 @Override 818 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 819 boolean success) { 820 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 821 if (isFlingToDelete) return; 822 823 endDragging(target, false, success); 824 825 // Display an error message if the drag failed due to there not being enough space on the 826 // target layout we were dropping on. 827 if (!success) { 828 boolean showOutOfSpaceMessage = false; 829 if (target instanceof Workspace) { 830 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 831 Workspace workspace = (Workspace) target; 832 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 833 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 834 if (layout != null) { 835 layout.calculateSpans(itemInfo); 836 showOutOfSpaceMessage = 837 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 838 } 839 } 840 if (showOutOfSpaceMessage) { 841 mLauncher.showOutOfSpaceMessage(false); 842 } 843 844 d.deferDragViewCleanupPostAnimation = false; 845 } 846 cleanupWidgetPreloading(success); 847 mDraggingWidget = false; 848 } 849 850 @Override 851 public void onFlingToDeleteCompleted() { 852 // We just dismiss the drag when we fling, so cleanup here 853 endDragging(null, true, true); 854 cleanupWidgetPreloading(false); 855 mDraggingWidget = false; 856 } 857 858 @Override 859 public boolean supportsFlingToDelete() { 860 return true; 861 } 862 863 @Override 864 protected void onDetachedFromWindow() { 865 super.onDetachedFromWindow(); 866 cancelAllTasks(); 867 } 868 869 public void clearAllWidgetPages() { 870 cancelAllTasks(); 871 int count = getChildCount(); 872 for (int i = 0; i < count; i++) { 873 View v = getPageAt(i); 874 if (v instanceof PagedViewGridLayout) { 875 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 876 mDirtyPageContent.set(i, true); 877 } 878 } 879 } 880 881 private void cancelAllTasks() { 882 // Clean up all the async tasks 883 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 884 while (iter.hasNext()) { 885 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 886 task.cancel(false); 887 iter.remove(); 888 mDirtyPageContent.set(task.page, true); 889 } 890 mDeferredSyncWidgetPageItems.clear(); 891 } 892 893 public void setContentType(ContentType type) { 894 if (type == ContentType.Widgets) { 895 invalidatePageData(mNumAppsPages, true); 896 } else if (type == ContentType.Applications) { 897 invalidatePageData(0, true); 898 } 899 } 900 901 protected void snapToPage(int whichPage, int delta, int duration) { 902 super.snapToPage(whichPage, delta, duration); 903 updateCurrentTab(whichPage); 904 905 // Update the thread priorities given the direction lookahead 906 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 907 while (iter.hasNext()) { 908 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 909 int pageIndex = task.page; 910 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 911 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 912 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 913 } else { 914 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 915 } 916 } 917 } 918 919 private void updateCurrentTab(int currentPage) { 920 AppsCustomizeTabHost tabHost = getTabHost(); 921 if (tabHost != null) { 922 String tag = tabHost.getCurrentTabTag(); 923 if (tag != null) { 924 if (currentPage >= mNumAppsPages && 925 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 926 tabHost.setCurrentTabFromContent(ContentType.Widgets); 927 } else if (currentPage < mNumAppsPages && 928 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 929 tabHost.setCurrentTabFromContent(ContentType.Applications); 930 } 931 } 932 } 933 } 934 935 /* 936 * Apps PagedView implementation 937 */ 938 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 939 int childCount = layout.getChildCount(); 940 for (int i = 0; i < childCount; ++i) { 941 layout.getChildAt(i).setVisibility(visibility); 942 } 943 } 944 private void setupPage(PagedViewCellLayout layout) { 945 layout.setCellCount(mCellCountX, mCellCountY); 946 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 947 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 948 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 949 950 // Note: We force a measure here to get around the fact that when we do layout calculations 951 // immediately after syncing, we don't have a proper width. That said, we already know the 952 // expected page width, so we can actually optimize by hiding all the TextView-based 953 // children that are expensive to measure, and let that happen naturally later. 954 setVisibilityOnChildren(layout, View.GONE); 955 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 956 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 957 layout.setMinimumWidth(getPageContentWidth()); 958 layout.measure(widthSpec, heightSpec); 959 setVisibilityOnChildren(layout, View.VISIBLE); 960 } 961 962 public void syncAppsPageItems(int page, boolean immediate) { 963 // ensure that we have the right number of items on the pages 964 int numCells = mCellCountX * mCellCountY; 965 int startIndex = page * numCells; 966 int endIndex = Math.min(startIndex + numCells, mApps.size()); 967 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 968 969 layout.removeAllViewsOnPage(); 970 ArrayList<Object> items = new ArrayList<Object>(); 971 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 972 for (int i = startIndex; i < endIndex; ++i) { 973 ApplicationInfo info = mApps.get(i); 974 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 975 R.layout.apps_customize_application, layout, false); 976 icon.applyFromApplicationInfo(info, true, this); 977 icon.setOnClickListener(this); 978 icon.setOnLongClickListener(this); 979 icon.setOnTouchListener(this); 980 icon.setOnKeyListener(this); 981 982 int index = i - startIndex; 983 int x = index % mCellCountX; 984 int y = index / mCellCountX; 985 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 986 987 items.add(info); 988 images.add(info.iconBitmap); 989 } 990 991 layout.createHardwareLayers(); 992 } 993 994 /** 995 * A helper to return the priority for loading of the specified widget page. 996 */ 997 private int getWidgetPageLoadPriority(int page) { 998 // If we are snapping to another page, use that index as the target page index 999 int toPage = mCurrentPage; 1000 if (mNextPage > -1) { 1001 toPage = mNextPage; 1002 } 1003 1004 // We use the distance from the target page as an initial guess of priority, but if there 1005 // are no pages of higher priority than the page specified, then bump up the priority of 1006 // the specified page. 1007 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1008 int minPageDiff = Integer.MAX_VALUE; 1009 while (iter.hasNext()) { 1010 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1011 minPageDiff = Math.abs(task.page - toPage); 1012 } 1013 1014 int rawPageDiff = Math.abs(page - toPage); 1015 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1016 } 1017 /** 1018 * Return the appropriate thread priority for loading for a given page (we give the current 1019 * page much higher priority) 1020 */ 1021 private int getThreadPriorityForPage(int page) { 1022 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1023 int pageDiff = getWidgetPageLoadPriority(page); 1024 if (pageDiff <= 0) { 1025 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1026 } else if (pageDiff <= 1) { 1027 return Process.THREAD_PRIORITY_LOWEST; 1028 } else { 1029 return Process.THREAD_PRIORITY_LOWEST; 1030 } 1031 } 1032 private int getSleepForPage(int page) { 1033 int pageDiff = getWidgetPageLoadPriority(page); 1034 return Math.max(0, pageDiff * sPageSleepDelay); 1035 } 1036 /** 1037 * Creates and executes a new AsyncTask to load a page of widget previews. 1038 */ 1039 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1040 int cellWidth, int cellHeight, int cellCountX) { 1041 1042 // Prune all tasks that are no longer needed 1043 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1044 while (iter.hasNext()) { 1045 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1046 int taskPage = task.page; 1047 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1048 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1049 task.cancel(false); 1050 iter.remove(); 1051 } else { 1052 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1053 } 1054 } 1055 1056 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1057 final int sleepMs = getSleepForPage(page); 1058 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1059 new AsyncTaskCallback() { 1060 @Override 1061 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1062 try { 1063 try { 1064 Thread.sleep(sleepMs); 1065 } catch (Exception e) {} 1066 loadWidgetPreviewsInBackground(task, data); 1067 } finally { 1068 if (task.isCancelled()) { 1069 data.cleanup(true); 1070 } 1071 } 1072 } 1073 }, 1074 new AsyncTaskCallback() { 1075 @Override 1076 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1077 mRunningTasks.remove(task); 1078 if (task.isCancelled()) return; 1079 // do cleanup inside onSyncWidgetPageItems 1080 onSyncWidgetPageItems(data); 1081 } 1082 }); 1083 1084 // Ensure that the task is appropriately prioritized and runs in parallel 1085 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1086 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1087 t.setThreadPriority(getThreadPriorityForPage(page)); 1088 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1089 mRunningTasks.add(t); 1090 } 1091 1092 /* 1093 * Widgets PagedView implementation 1094 */ 1095 private void setupPage(PagedViewGridLayout layout) { 1096 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1097 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1098 1099 // Note: We force a measure here to get around the fact that when we do layout calculations 1100 // immediately after syncing, we don't have a proper width. 1101 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1102 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1103 layout.setMinimumWidth(getPageContentWidth()); 1104 layout.measure(widthSpec, heightSpec); 1105 } 1106 1107 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1108 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 1109 } 1110 1111 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1112 float scale, int multiplyColor) { 1113 if (bitmap != null) { 1114 Canvas c = new Canvas(bitmap); 1115 c.scale(scale, scale); 1116 Rect oldBounds = d.copyBounds(); 1117 d.setBounds(x, y, x + w, y + h); 1118 d.draw(c); 1119 d.setBounds(oldBounds); // Restore the bounds 1120 c.setBitmap(null); 1121 } 1122 } 1123 private Bitmap getShortcutPreview(ResolveInfo info) { 1124 // Render the background 1125 int offset = 0; 1126 int bitmapSize = mAppIconSize; 1127 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1128 1129 // Render the icon 1130 Drawable icon = mIconCache.getFullResIcon(info); 1131 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1132 return preview; 1133 } 1134 1135 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1136 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1137 // Load the preview image if possible 1138 String packageName = provider.getPackageName(); 1139 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1140 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1141 1142 Drawable drawable = null; 1143 if (previewImage != 0) { 1144 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1145 if (drawable == null) { 1146 Log.w(TAG, "Can't load widget preview drawable 0x" + 1147 Integer.toHexString(previewImage) + " for provider: " + provider); 1148 } 1149 } 1150 1151 int bitmapWidth; 1152 int bitmapHeight; 1153 boolean widgetPreviewExists = (drawable != null); 1154 if (widgetPreviewExists) { 1155 bitmapWidth = drawable.getIntrinsicWidth(); 1156 bitmapHeight = drawable.getIntrinsicHeight(); 1157 } else { 1158 if (cellHSpan < 1) cellHSpan = 1; 1159 if (cellVSpan < 1) cellVSpan = 1; 1160 // Determine the size of the bitmap for the preview image we will generate 1161 // TODO: This actually uses the apps customize cell layout params, where as we make want 1162 // the Workspace params for more accuracy. 1163 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1164 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1165 if (cellHSpan == cellVSpan) { 1166 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1167 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1168 if (cellHSpan <= 1) { 1169 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1170 } else { 1171 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1172 } 1173 } 1174 } 1175 1176 float scale = 1f; 1177 if (bitmapWidth > maxWidth) { 1178 scale = maxWidth / (float) bitmapWidth; 1179 } 1180 if (bitmapHeight * scale > maxHeight) { 1181 scale = maxHeight / (float) bitmapHeight; 1182 } 1183 if (scale != 1f) { 1184 bitmapWidth = (int) (scale * bitmapWidth); 1185 bitmapHeight = (int) (scale * bitmapHeight); 1186 } 1187 1188 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1189 1190 if (widgetPreviewExists) { 1191 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1192 } else { 1193 // Generate a preview image if we couldn't load one 1194 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1195 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1196 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1197 if (cellHSpan != 1 || cellVSpan != 1) { 1198 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1199 bitmapHeight); 1200 } 1201 1202 // Draw the icon in the top left corner 1203 try { 1204 Drawable icon = null; 1205 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1206 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1207 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1208 Resources resources = mLauncher.getResources(); 1209 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1210 1211 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1212 (int) (mAppIconSize * iconScale), 1213 (int) (mAppIconSize * iconScale)); 1214 } catch (Resources.NotFoundException e) {} 1215 } 1216 return preview; 1217 } 1218 1219 public void syncWidgetPageItems(final int page, final boolean immediate) { 1220 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1221 1222 // Calculate the dimensions of each cell we are giving to each widget 1223 final ArrayList<Object> items = new ArrayList<Object>(); 1224 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1225 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1226 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1227 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1228 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1229 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1230 1231 // Prepare the set of widgets to load previews for in the background 1232 int offset = (page - mNumAppsPages) * numItemsPerPage; 1233 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1234 items.add(mWidgets.get(i)); 1235 } 1236 1237 // Prepopulate the pages with the other widget info, and fill in the previews later 1238 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1239 layout.setColumnCount(layout.getCellCountX()); 1240 for (int i = 0; i < items.size(); ++i) { 1241 Object rawInfo = items.get(i); 1242 PendingAddItemInfo createItemInfo = null; 1243 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1244 R.layout.apps_customize_widget, layout, false); 1245 if (rawInfo instanceof AppWidgetProviderInfo) { 1246 // Fill in the widget information 1247 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1248 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1249 1250 // Determine the widget spans and min resize spans. 1251 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1252 createItemInfo.spanX = spanXY[0]; 1253 createItemInfo.spanY = spanXY[1]; 1254 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1255 createItemInfo.minSpanX = minSpanXY[0]; 1256 createItemInfo.minSpanY = minSpanXY[1]; 1257 1258 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1259 widget.setTag(createItemInfo); 1260 widget.setShortPressListener(this); 1261 } else if (rawInfo instanceof ResolveInfo) { 1262 // Fill in the shortcuts information 1263 ResolveInfo info = (ResolveInfo) rawInfo; 1264 createItemInfo = new PendingAddItemInfo(); 1265 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1266 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1267 info.activityInfo.name); 1268 widget.applyFromResolveInfo(mPackageManager, info); 1269 widget.setTag(createItemInfo); 1270 } 1271 widget.setOnClickListener(this); 1272 widget.setOnLongClickListener(this); 1273 widget.setOnTouchListener(this); 1274 widget.setOnKeyListener(this); 1275 1276 // Layout each widget 1277 int ix = i % mWidgetCountX; 1278 int iy = i / mWidgetCountX; 1279 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1280 GridLayout.spec(iy, GridLayout.LEFT), 1281 GridLayout.spec(ix, GridLayout.TOP)); 1282 lp.width = cellWidth; 1283 lp.height = cellHeight; 1284 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1285 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1286 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1287 layout.addView(widget, lp); 1288 } 1289 1290 // wait until a call on onLayout to start loading, because 1291 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1292 // TODO: can we do a measure/layout immediately? 1293 layout.setOnLayoutListener(new Runnable() { 1294 public void run() { 1295 // Load the widget previews 1296 int maxPreviewWidth = cellWidth; 1297 int maxPreviewHeight = cellHeight; 1298 if (layout.getChildCount() > 0) { 1299 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1300 int[] maxSize = w.getPreviewSize(); 1301 maxPreviewWidth = maxSize[0]; 1302 maxPreviewHeight = maxSize[1]; 1303 } 1304 if (immediate) { 1305 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1306 maxPreviewWidth, maxPreviewHeight, null, null); 1307 loadWidgetPreviewsInBackground(null, data); 1308 onSyncWidgetPageItems(data); 1309 } else { 1310 prepareLoadWidgetPreviewsTask(page, items, 1311 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1312 } 1313 } 1314 }); 1315 } 1316 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1317 AsyncTaskPageData data) { 1318 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1319 // previews synchronously 1320 if (task != null) { 1321 // Ensure that this task starts running at the correct priority 1322 task.syncThreadPriority(); 1323 } 1324 1325 // Load each of the widget/shortcut previews 1326 ArrayList<Object> items = data.items; 1327 ArrayList<Bitmap> images = data.generatedImages; 1328 int count = items.size(); 1329 for (int i = 0; i < count; ++i) { 1330 if (task != null) { 1331 // Ensure we haven't been cancelled yet 1332 if (task.isCancelled()) break; 1333 // Before work on each item, ensure that this task is running at the correct 1334 // priority 1335 task.syncThreadPriority(); 1336 } 1337 1338 Object rawInfo = items.get(i); 1339 if (rawInfo instanceof AppWidgetProviderInfo) { 1340 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1341 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1342 1343 int maxWidth = Math.min(data.maxImageWidth, 1344 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1345 int maxHeight = Math.min(data.maxImageHeight, 1346 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1347 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1348 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1349 images.add(b); 1350 } else if (rawInfo instanceof ResolveInfo) { 1351 // Fill in the shortcuts information 1352 ResolveInfo info = (ResolveInfo) rawInfo; 1353 images.add(getShortcutPreview(info)); 1354 } 1355 } 1356 } 1357 1358 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1359 if (mInTransition) { 1360 mDeferredSyncWidgetPageItems.add(data); 1361 return; 1362 } 1363 try { 1364 int page = data.page; 1365 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1366 1367 ArrayList<Object> items = data.items; 1368 int count = items.size(); 1369 for (int i = 0; i < count; ++i) { 1370 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1371 if (widget != null) { 1372 Bitmap preview = data.generatedImages.get(i); 1373 widget.applyPreview(new FastBitmapDrawable(preview), i); 1374 } 1375 } 1376 1377 layout.createHardwareLayer(); 1378 invalidate(); 1379 1380 // Update all thread priorities 1381 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1382 while (iter.hasNext()) { 1383 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1384 int pageIndex = task.page; 1385 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1386 } 1387 } finally { 1388 data.cleanup(false); 1389 } 1390 } 1391 1392 @Override 1393 public void syncPages() { 1394 removeAllViews(); 1395 cancelAllTasks(); 1396 1397 Context context = getContext(); 1398 for (int j = 0; j < mNumWidgetPages; ++j) { 1399 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1400 mWidgetCountY); 1401 setupPage(layout); 1402 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1403 LayoutParams.MATCH_PARENT)); 1404 } 1405 1406 for (int i = 0; i < mNumAppsPages; ++i) { 1407 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1408 setupPage(layout); 1409 addView(layout); 1410 } 1411 } 1412 1413 @Override 1414 public void syncPageItems(int page, boolean immediate) { 1415 if (page < mNumAppsPages) { 1416 syncAppsPageItems(page, immediate); 1417 } else { 1418 syncWidgetPageItems(page, immediate); 1419 } 1420 } 1421 1422 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1423 // it is in the z-order. This is important to insure touch events are handled correctly. 1424 View getPageAt(int index) { 1425 return getChildAt(indexToPage(index)); 1426 } 1427 1428 @Override 1429 protected int indexToPage(int index) { 1430 return getChildCount() - index - 1; 1431 } 1432 1433 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1434 @Override 1435 protected void screenScrolled(int screenCenter) { 1436 super.screenScrolled(screenCenter); 1437 1438 for (int i = 0; i < getChildCount(); i++) { 1439 View v = getPageAt(i); 1440 if (v != null) { 1441 float scrollProgress = getScrollProgress(screenCenter, v, i); 1442 1443 float interpolatedProgress = 1444 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1445 float scale = (1 - interpolatedProgress) + 1446 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1447 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1448 1449 float alpha; 1450 1451 if (scrollProgress < 0) { 1452 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1453 1 - Math.abs(scrollProgress)) : 1.0f; 1454 } else { 1455 // On large screens we need to fade the page as it nears its leftmost position 1456 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1457 } 1458 1459 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1460 int pageWidth = v.getMeasuredWidth(); 1461 int pageHeight = v.getMeasuredHeight(); 1462 1463 if (PERFORM_OVERSCROLL_ROTATION) { 1464 if (i == 0 && scrollProgress < 0) { 1465 // Overscroll to the left 1466 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1467 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1468 scale = 1.0f; 1469 alpha = 1.0f; 1470 // On the first page, we don't want the page to have any lateral motion 1471 translationX = 0; 1472 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1473 // Overscroll to the right 1474 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1475 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1476 scale = 1.0f; 1477 alpha = 1.0f; 1478 // On the last page, we don't want the page to have any lateral motion. 1479 translationX = 0; 1480 } else { 1481 v.setPivotY(pageHeight / 2.0f); 1482 v.setPivotX(pageWidth / 2.0f); 1483 v.setRotationY(0f); 1484 } 1485 } 1486 1487 v.setTranslationX(translationX); 1488 v.setScaleX(scale); 1489 v.setScaleY(scale); 1490 v.setAlpha(alpha); 1491 1492 // If the view has 0 alpha, we set it to be invisible so as to prevent 1493 // it from accepting touches 1494 if (alpha == 0) { 1495 v.setVisibility(INVISIBLE); 1496 } else if (v.getVisibility() != VISIBLE) { 1497 v.setVisibility(VISIBLE); 1498 } 1499 } 1500 } 1501 } 1502 1503 protected void overScroll(float amount) { 1504 acceleratedOverScroll(amount); 1505 } 1506 1507 /** 1508 * Used by the parent to get the content width to set the tab bar to 1509 * @return 1510 */ 1511 public int getPageContentWidth() { 1512 return mContentWidth; 1513 } 1514 1515 @Override 1516 protected void onPageEndMoving() { 1517 super.onPageEndMoving(); 1518 mForceDrawAllChildrenNextFrame = true; 1519 // We reset the save index when we change pages so that it will be recalculated on next 1520 // rotation 1521 mSaveInstanceStateItemIndex = -1; 1522 } 1523 1524 /* 1525 * AllAppsView implementation 1526 */ 1527 @Override 1528 public void setup(Launcher launcher, DragController dragController) { 1529 mLauncher = launcher; 1530 mDragController = dragController; 1531 } 1532 @Override 1533 public void zoom(float zoom, boolean animate) { 1534 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1535 } 1536 @Override 1537 public boolean isVisible() { 1538 return (getVisibility() == VISIBLE); 1539 } 1540 @Override 1541 public boolean isAnimating() { 1542 return false; 1543 } 1544 @Override 1545 public void setApps(ArrayList<ApplicationInfo> list) { 1546 mApps = list; 1547 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1548 updatePageCounts(); 1549 1550 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1551 // request a layout to do this test and invalidate the page data when ready. 1552 if (testDataReady()) requestLayout(); 1553 } 1554 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1555 // We add it in place, in alphabetical order 1556 int count = list.size(); 1557 for (int i = 0; i < count; ++i) { 1558 ApplicationInfo info = list.get(i); 1559 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1560 if (index < 0) { 1561 mApps.add(-(index + 1), info); 1562 } 1563 } 1564 } 1565 @Override 1566 public void addApps(ArrayList<ApplicationInfo> list) { 1567 addAppsWithoutInvalidate(list); 1568 updatePageCounts(); 1569 invalidatePageData(); 1570 } 1571 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1572 ComponentName removeComponent = item.intent.getComponent(); 1573 int length = list.size(); 1574 for (int i = 0; i < length; ++i) { 1575 ApplicationInfo info = list.get(i); 1576 if (info.intent.getComponent().equals(removeComponent)) { 1577 return i; 1578 } 1579 } 1580 return -1; 1581 } 1582 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1583 // loop through all the apps and remove apps that have the same component 1584 int length = list.size(); 1585 for (int i = 0; i < length; ++i) { 1586 ApplicationInfo info = list.get(i); 1587 int removeIndex = findAppByComponent(mApps, info); 1588 if (removeIndex > -1) { 1589 mApps.remove(removeIndex); 1590 } 1591 } 1592 } 1593 @Override 1594 public void removeApps(ArrayList<ApplicationInfo> list) { 1595 removeAppsWithoutInvalidate(list); 1596 updatePageCounts(); 1597 invalidatePageData(); 1598 } 1599 @Override 1600 public void updateApps(ArrayList<ApplicationInfo> list) { 1601 // We remove and re-add the updated applications list because it's properties may have 1602 // changed (ie. the title), and this will ensure that the items will be in their proper 1603 // place in the list. 1604 removeAppsWithoutInvalidate(list); 1605 addAppsWithoutInvalidate(list); 1606 updatePageCounts(); 1607 1608 invalidatePageData(); 1609 } 1610 1611 @Override 1612 public void reset() { 1613 // If we have reset, then we should not continue to restore the previous state 1614 mSaveInstanceStateItemIndex = -1; 1615 1616 AppsCustomizeTabHost tabHost = getTabHost(); 1617 String tag = tabHost.getCurrentTabTag(); 1618 if (tag != null) { 1619 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1620 tabHost.setCurrentTabFromContent(ContentType.Applications); 1621 } 1622 } 1623 1624 if (mCurrentPage != 0) { 1625 invalidatePageData(0); 1626 } 1627 } 1628 1629 private AppsCustomizeTabHost getTabHost() { 1630 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1631 } 1632 1633 @Override 1634 public void dumpState() { 1635 // TODO: Dump information related to current list of Applications, Widgets, etc. 1636 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1637 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1638 } 1639 1640 private void dumpAppWidgetProviderInfoList(String tag, String label, 1641 ArrayList<Object> list) { 1642 Log.d(tag, label + " size=" + list.size()); 1643 for (Object i: list) { 1644 if (i instanceof AppWidgetProviderInfo) { 1645 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1646 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1647 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1648 + " initialLayout=" + info.initialLayout 1649 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1650 } else if (i instanceof ResolveInfo) { 1651 ResolveInfo info = (ResolveInfo) i; 1652 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1653 + info.icon); 1654 } 1655 } 1656 } 1657 1658 @Override 1659 public void surrender() { 1660 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1661 // should stop this now. 1662 1663 // Stop all background tasks 1664 cancelAllTasks(); 1665 } 1666 1667 @Override 1668 public void iconPressed(PagedViewIcon icon) { 1669 // Reset the previously pressed icon and store a reference to the pressed icon so that 1670 // we can reset it on return to Launcher (in Launcher.onResume()) 1671 if (mPressedIcon != null) { 1672 mPressedIcon.resetDrawableState(); 1673 } 1674 mPressedIcon = icon; 1675 } 1676 1677 public void resetDrawableState() { 1678 if (mPressedIcon != null) { 1679 mPressedIcon.resetDrawableState(); 1680 mPressedIcon = null; 1681 } 1682 } 1683 1684 /* 1685 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1686 * widget previews in the background with the AsyncTasks. 1687 */ 1688 final static int sLookBehindPageCount = 2; 1689 final static int sLookAheadPageCount = 2; 1690 protected int getAssociatedLowerPageBound(int page) { 1691 final int count = getChildCount(); 1692 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1693 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1694 return windowMinIndex; 1695 } 1696 protected int getAssociatedUpperPageBound(int page) { 1697 final int count = getChildCount(); 1698 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1699 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1700 count - 1); 1701 return windowMaxIndex; 1702 } 1703 1704 @Override 1705 protected String getCurrentPageDescription() { 1706 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1707 int stringId = R.string.default_scroll_format; 1708 int count = 0; 1709 1710 if (page < mNumAppsPages) { 1711 stringId = R.string.apps_customize_apps_scroll_format; 1712 count = mNumAppsPages; 1713 } else { 1714 page -= mNumAppsPages; 1715 stringId = R.string.apps_customize_widgets_scroll_format; 1716 count = mNumWidgetPages; 1717 } 1718 1719 return String.format(getContext().getString(stringId), page + 1, count); 1720 } 1721} 1722