AppsCustomizePagedView.java revision 1202b33da6a00b22f3bfd531115cfe030eddf901
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 } 815 816 @Override 817 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 818 boolean success) { 819 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 820 if (isFlingToDelete) return; 821 822 endDragging(target, false, success); 823 824 // Display an error message if the drag failed due to there not being enough space on the 825 // target layout we were dropping on. 826 if (!success) { 827 boolean showOutOfSpaceMessage = false; 828 if (target instanceof Workspace) { 829 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 830 Workspace workspace = (Workspace) target; 831 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 832 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 833 if (layout != null) { 834 layout.calculateSpans(itemInfo); 835 showOutOfSpaceMessage = 836 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 837 } 838 } 839 if (showOutOfSpaceMessage) { 840 mLauncher.showOutOfSpaceMessage(false); 841 } 842 843 d.deferDragViewCleanupPostAnimation = false; 844 } 845 cleanupWidgetPreloading(success); 846 mDraggingWidget = false; 847 } 848 849 @Override 850 public void onFlingToDeleteCompleted() { 851 // We just dismiss the drag when we fling, so cleanup here 852 endDragging(null, true, true); 853 cleanupWidgetPreloading(false); 854 mDraggingWidget = false; 855 } 856 857 @Override 858 public boolean supportsFlingToDelete() { 859 return true; 860 } 861 862 @Override 863 protected void onDetachedFromWindow() { 864 super.onDetachedFromWindow(); 865 cancelAllTasks(); 866 } 867 868 public void clearAllWidgetPages() { 869 cancelAllTasks(); 870 int count = getChildCount(); 871 for (int i = 0; i < count; i++) { 872 View v = getPageAt(i); 873 if (v instanceof PagedViewGridLayout) { 874 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 875 mDirtyPageContent.set(i, true); 876 } 877 } 878 } 879 880 private void cancelAllTasks() { 881 // Clean up all the async tasks 882 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 883 while (iter.hasNext()) { 884 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 885 task.cancel(false); 886 iter.remove(); 887 mDirtyPageContent.set(task.page, true); 888 } 889 mDeferredSyncWidgetPageItems.clear(); 890 } 891 892 public void setContentType(ContentType type) { 893 if (type == ContentType.Widgets) { 894 invalidatePageData(mNumAppsPages, true); 895 } else if (type == ContentType.Applications) { 896 invalidatePageData(0, true); 897 } 898 } 899 900 protected void snapToPage(int whichPage, int delta, int duration) { 901 super.snapToPage(whichPage, delta, duration); 902 updateCurrentTab(whichPage); 903 904 // Update the thread priorities given the direction lookahead 905 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 906 while (iter.hasNext()) { 907 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 908 int pageIndex = task.page; 909 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 910 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 911 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 912 } else { 913 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 914 } 915 } 916 } 917 918 private void updateCurrentTab(int currentPage) { 919 AppsCustomizeTabHost tabHost = getTabHost(); 920 if (tabHost != null) { 921 String tag = tabHost.getCurrentTabTag(); 922 if (tag != null) { 923 if (currentPage >= mNumAppsPages && 924 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 925 tabHost.setCurrentTabFromContent(ContentType.Widgets); 926 } else if (currentPage < mNumAppsPages && 927 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 928 tabHost.setCurrentTabFromContent(ContentType.Applications); 929 } 930 } 931 } 932 } 933 934 /* 935 * Apps PagedView implementation 936 */ 937 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 938 int childCount = layout.getChildCount(); 939 for (int i = 0; i < childCount; ++i) { 940 layout.getChildAt(i).setVisibility(visibility); 941 } 942 } 943 private void setupPage(PagedViewCellLayout layout) { 944 layout.setCellCount(mCellCountX, mCellCountY); 945 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 946 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 947 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 948 949 // Note: We force a measure here to get around the fact that when we do layout calculations 950 // immediately after syncing, we don't have a proper width. That said, we already know the 951 // expected page width, so we can actually optimize by hiding all the TextView-based 952 // children that are expensive to measure, and let that happen naturally later. 953 setVisibilityOnChildren(layout, View.GONE); 954 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 955 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 956 layout.setMinimumWidth(getPageContentWidth()); 957 layout.measure(widthSpec, heightSpec); 958 setVisibilityOnChildren(layout, View.VISIBLE); 959 } 960 961 public void syncAppsPageItems(int page, boolean immediate) { 962 // ensure that we have the right number of items on the pages 963 int numCells = mCellCountX * mCellCountY; 964 int startIndex = page * numCells; 965 int endIndex = Math.min(startIndex + numCells, mApps.size()); 966 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 967 968 layout.removeAllViewsOnPage(); 969 ArrayList<Object> items = new ArrayList<Object>(); 970 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 971 for (int i = startIndex; i < endIndex; ++i) { 972 ApplicationInfo info = mApps.get(i); 973 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 974 R.layout.apps_customize_application, layout, false); 975 icon.applyFromApplicationInfo(info, true, this); 976 icon.setOnClickListener(this); 977 icon.setOnLongClickListener(this); 978 icon.setOnTouchListener(this); 979 icon.setOnKeyListener(this); 980 981 int index = i - startIndex; 982 int x = index % mCellCountX; 983 int y = index / mCellCountX; 984 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 985 986 items.add(info); 987 images.add(info.iconBitmap); 988 } 989 990 layout.createHardwareLayers(); 991 } 992 993 /** 994 * A helper to return the priority for loading of the specified widget page. 995 */ 996 private int getWidgetPageLoadPriority(int page) { 997 // If we are snapping to another page, use that index as the target page index 998 int toPage = mCurrentPage; 999 if (mNextPage > -1) { 1000 toPage = mNextPage; 1001 } 1002 1003 // We use the distance from the target page as an initial guess of priority, but if there 1004 // are no pages of higher priority than the page specified, then bump up the priority of 1005 // the specified page. 1006 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1007 int minPageDiff = Integer.MAX_VALUE; 1008 while (iter.hasNext()) { 1009 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1010 minPageDiff = Math.abs(task.page - toPage); 1011 } 1012 1013 int rawPageDiff = Math.abs(page - toPage); 1014 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1015 } 1016 /** 1017 * Return the appropriate thread priority for loading for a given page (we give the current 1018 * page much higher priority) 1019 */ 1020 private int getThreadPriorityForPage(int page) { 1021 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1022 int pageDiff = getWidgetPageLoadPriority(page); 1023 if (pageDiff <= 0) { 1024 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1025 } else if (pageDiff <= 1) { 1026 return Process.THREAD_PRIORITY_LOWEST; 1027 } else { 1028 return Process.THREAD_PRIORITY_LOWEST; 1029 } 1030 } 1031 private int getSleepForPage(int page) { 1032 int pageDiff = getWidgetPageLoadPriority(page); 1033 return Math.max(0, pageDiff * sPageSleepDelay); 1034 } 1035 /** 1036 * Creates and executes a new AsyncTask to load a page of widget previews. 1037 */ 1038 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1039 int cellWidth, int cellHeight, int cellCountX) { 1040 1041 // Prune all tasks that are no longer needed 1042 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1043 while (iter.hasNext()) { 1044 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1045 int taskPage = task.page; 1046 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1047 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1048 task.cancel(false); 1049 iter.remove(); 1050 } else { 1051 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1052 } 1053 } 1054 1055 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1056 final int sleepMs = getSleepForPage(page); 1057 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1058 new AsyncTaskCallback() { 1059 @Override 1060 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1061 try { 1062 try { 1063 Thread.sleep(sleepMs); 1064 } catch (Exception e) {} 1065 loadWidgetPreviewsInBackground(task, data); 1066 } finally { 1067 if (task.isCancelled()) { 1068 data.cleanup(true); 1069 } 1070 } 1071 } 1072 }, 1073 new AsyncTaskCallback() { 1074 @Override 1075 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1076 mRunningTasks.remove(task); 1077 if (task.isCancelled()) return; 1078 // do cleanup inside onSyncWidgetPageItems 1079 onSyncWidgetPageItems(data); 1080 } 1081 }); 1082 1083 // Ensure that the task is appropriately prioritized and runs in parallel 1084 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1085 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1086 t.setThreadPriority(getThreadPriorityForPage(page)); 1087 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1088 mRunningTasks.add(t); 1089 } 1090 1091 /* 1092 * Widgets PagedView implementation 1093 */ 1094 private void setupPage(PagedViewGridLayout layout) { 1095 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1096 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1097 1098 // Note: We force a measure here to get around the fact that when we do layout calculations 1099 // immediately after syncing, we don't have a proper width. 1100 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1101 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1102 layout.setMinimumWidth(getPageContentWidth()); 1103 layout.measure(widthSpec, heightSpec); 1104 } 1105 1106 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1107 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 1108 } 1109 1110 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1111 float scale, int multiplyColor) { 1112 if (bitmap != null) { 1113 Canvas c = new Canvas(bitmap); 1114 c.scale(scale, scale); 1115 Rect oldBounds = d.copyBounds(); 1116 d.setBounds(x, y, x + w, y + h); 1117 d.draw(c); 1118 d.setBounds(oldBounds); // Restore the bounds 1119 c.setBitmap(null); 1120 } 1121 } 1122 private Bitmap getShortcutPreview(ResolveInfo info) { 1123 // Render the background 1124 int offset = 0; 1125 int bitmapSize = mAppIconSize; 1126 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1127 1128 // Render the icon 1129 Drawable icon = mIconCache.getFullResIcon(info); 1130 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1131 return preview; 1132 } 1133 1134 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1135 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1136 // Load the preview image if possible 1137 String packageName = provider.getPackageName(); 1138 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1139 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1140 1141 Drawable drawable = null; 1142 if (previewImage != 0) { 1143 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1144 if (drawable == null) { 1145 Log.w(TAG, "Can't load widget preview drawable 0x" + 1146 Integer.toHexString(previewImage) + " for provider: " + provider); 1147 } 1148 } 1149 1150 int bitmapWidth; 1151 int bitmapHeight; 1152 boolean widgetPreviewExists = (drawable != null); 1153 if (widgetPreviewExists) { 1154 bitmapWidth = drawable.getIntrinsicWidth(); 1155 bitmapHeight = drawable.getIntrinsicHeight(); 1156 } else { 1157 if (cellHSpan < 1) cellHSpan = 1; 1158 if (cellVSpan < 1) cellVSpan = 1; 1159 // Determine the size of the bitmap for the preview image we will generate 1160 // TODO: This actually uses the apps customize cell layout params, where as we make want 1161 // the Workspace params for more accuracy. 1162 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1163 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1164 if (cellHSpan == cellVSpan) { 1165 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1166 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1167 if (cellHSpan <= 1) { 1168 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1169 } else { 1170 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1171 } 1172 } 1173 } 1174 1175 float scale = 1f; 1176 if (bitmapWidth > maxWidth) { 1177 scale = maxWidth / (float) bitmapWidth; 1178 } 1179 if (bitmapHeight * scale > maxHeight) { 1180 scale = maxHeight / (float) bitmapHeight; 1181 } 1182 if (scale != 1f) { 1183 bitmapWidth = (int) (scale * bitmapWidth); 1184 bitmapHeight = (int) (scale * bitmapHeight); 1185 } 1186 1187 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1188 1189 if (widgetPreviewExists) { 1190 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1191 } else { 1192 // Generate a preview image if we couldn't load one 1193 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1194 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1195 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1196 if (cellHSpan != 1 || cellVSpan != 1) { 1197 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1198 bitmapHeight); 1199 } 1200 1201 // Draw the icon in the top left corner 1202 try { 1203 Drawable icon = null; 1204 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1205 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1206 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1207 Resources resources = mLauncher.getResources(); 1208 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1209 1210 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1211 (int) (mAppIconSize * iconScale), 1212 (int) (mAppIconSize * iconScale)); 1213 } catch (Resources.NotFoundException e) {} 1214 } 1215 return preview; 1216 } 1217 1218 public void syncWidgetPageItems(final int page, final boolean immediate) { 1219 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1220 1221 // Calculate the dimensions of each cell we are giving to each widget 1222 final ArrayList<Object> items = new ArrayList<Object>(); 1223 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1224 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1225 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1226 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1227 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1228 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1229 1230 // Prepare the set of widgets to load previews for in the background 1231 int offset = (page - mNumAppsPages) * numItemsPerPage; 1232 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1233 items.add(mWidgets.get(i)); 1234 } 1235 1236 // Prepopulate the pages with the other widget info, and fill in the previews later 1237 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1238 layout.setColumnCount(layout.getCellCountX()); 1239 for (int i = 0; i < items.size(); ++i) { 1240 Object rawInfo = items.get(i); 1241 PendingAddItemInfo createItemInfo = null; 1242 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1243 R.layout.apps_customize_widget, layout, false); 1244 if (rawInfo instanceof AppWidgetProviderInfo) { 1245 // Fill in the widget information 1246 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1247 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1248 1249 // Determine the widget spans and min resize spans. 1250 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1251 createItemInfo.spanX = spanXY[0]; 1252 createItemInfo.spanY = spanXY[1]; 1253 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1254 createItemInfo.minSpanX = minSpanXY[0]; 1255 createItemInfo.minSpanY = minSpanXY[1]; 1256 1257 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1258 widget.setTag(createItemInfo); 1259 widget.setShortPressListener(this); 1260 } else if (rawInfo instanceof ResolveInfo) { 1261 // Fill in the shortcuts information 1262 ResolveInfo info = (ResolveInfo) rawInfo; 1263 createItemInfo = new PendingAddItemInfo(); 1264 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1265 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1266 info.activityInfo.name); 1267 widget.applyFromResolveInfo(mPackageManager, info); 1268 widget.setTag(createItemInfo); 1269 } 1270 widget.setOnClickListener(this); 1271 widget.setOnLongClickListener(this); 1272 widget.setOnTouchListener(this); 1273 widget.setOnKeyListener(this); 1274 1275 // Layout each widget 1276 int ix = i % mWidgetCountX; 1277 int iy = i / mWidgetCountX; 1278 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1279 GridLayout.spec(iy, GridLayout.LEFT), 1280 GridLayout.spec(ix, GridLayout.TOP)); 1281 lp.width = cellWidth; 1282 lp.height = cellHeight; 1283 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1284 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1285 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1286 layout.addView(widget, lp); 1287 } 1288 1289 // wait until a call on onLayout to start loading, because 1290 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1291 // TODO: can we do a measure/layout immediately? 1292 layout.setOnLayoutListener(new Runnable() { 1293 public void run() { 1294 // Load the widget previews 1295 int maxPreviewWidth = cellWidth; 1296 int maxPreviewHeight = cellHeight; 1297 if (layout.getChildCount() > 0) { 1298 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1299 int[] maxSize = w.getPreviewSize(); 1300 maxPreviewWidth = maxSize[0]; 1301 maxPreviewHeight = maxSize[1]; 1302 } 1303 if (immediate) { 1304 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1305 maxPreviewWidth, maxPreviewHeight, null, null); 1306 loadWidgetPreviewsInBackground(null, data); 1307 onSyncWidgetPageItems(data); 1308 } else { 1309 prepareLoadWidgetPreviewsTask(page, items, 1310 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1311 } 1312 } 1313 }); 1314 } 1315 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1316 AsyncTaskPageData data) { 1317 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1318 // previews synchronously 1319 if (task != null) { 1320 // Ensure that this task starts running at the correct priority 1321 task.syncThreadPriority(); 1322 } 1323 1324 // Load each of the widget/shortcut previews 1325 ArrayList<Object> items = data.items; 1326 ArrayList<Bitmap> images = data.generatedImages; 1327 int count = items.size(); 1328 for (int i = 0; i < count; ++i) { 1329 if (task != null) { 1330 // Ensure we haven't been cancelled yet 1331 if (task.isCancelled()) break; 1332 // Before work on each item, ensure that this task is running at the correct 1333 // priority 1334 task.syncThreadPriority(); 1335 } 1336 1337 Object rawInfo = items.get(i); 1338 if (rawInfo instanceof AppWidgetProviderInfo) { 1339 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1340 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1341 1342 int maxWidth = Math.min(data.maxImageWidth, 1343 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1344 int maxHeight = Math.min(data.maxImageHeight, 1345 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1346 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1347 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1348 images.add(b); 1349 } else if (rawInfo instanceof ResolveInfo) { 1350 // Fill in the shortcuts information 1351 ResolveInfo info = (ResolveInfo) rawInfo; 1352 images.add(getShortcutPreview(info)); 1353 } 1354 } 1355 } 1356 1357 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1358 if (mInTransition) { 1359 mDeferredSyncWidgetPageItems.add(data); 1360 return; 1361 } 1362 try { 1363 int page = data.page; 1364 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1365 1366 ArrayList<Object> items = data.items; 1367 int count = items.size(); 1368 for (int i = 0; i < count; ++i) { 1369 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1370 if (widget != null) { 1371 Bitmap preview = data.generatedImages.get(i); 1372 widget.applyPreview(new FastBitmapDrawable(preview), i); 1373 } 1374 } 1375 1376 layout.createHardwareLayer(); 1377 invalidate(); 1378 1379 // Update all thread priorities 1380 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1381 while (iter.hasNext()) { 1382 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1383 int pageIndex = task.page; 1384 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1385 } 1386 } finally { 1387 data.cleanup(false); 1388 } 1389 } 1390 1391 @Override 1392 public void syncPages() { 1393 removeAllViews(); 1394 cancelAllTasks(); 1395 1396 Context context = getContext(); 1397 for (int j = 0; j < mNumWidgetPages; ++j) { 1398 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1399 mWidgetCountY); 1400 setupPage(layout); 1401 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1402 LayoutParams.MATCH_PARENT)); 1403 } 1404 1405 for (int i = 0; i < mNumAppsPages; ++i) { 1406 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1407 setupPage(layout); 1408 addView(layout); 1409 } 1410 } 1411 1412 @Override 1413 public void syncPageItems(int page, boolean immediate) { 1414 if (page < mNumAppsPages) { 1415 syncAppsPageItems(page, immediate); 1416 } else { 1417 syncWidgetPageItems(page, immediate); 1418 } 1419 } 1420 1421 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1422 // it is in the z-order. This is important to insure touch events are handled correctly. 1423 View getPageAt(int index) { 1424 return getChildAt(indexToPage(index)); 1425 } 1426 1427 @Override 1428 protected int indexToPage(int index) { 1429 return getChildCount() - index - 1; 1430 } 1431 1432 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1433 @Override 1434 protected void screenScrolled(int screenCenter) { 1435 super.screenScrolled(screenCenter); 1436 1437 for (int i = 0; i < getChildCount(); i++) { 1438 View v = getPageAt(i); 1439 if (v != null) { 1440 float scrollProgress = getScrollProgress(screenCenter, v, i); 1441 1442 float interpolatedProgress = 1443 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1444 float scale = (1 - interpolatedProgress) + 1445 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1446 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1447 1448 float alpha; 1449 1450 if (scrollProgress < 0) { 1451 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1452 1 - Math.abs(scrollProgress)) : 1.0f; 1453 } else { 1454 // On large screens we need to fade the page as it nears its leftmost position 1455 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1456 } 1457 1458 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1459 int pageWidth = v.getMeasuredWidth(); 1460 int pageHeight = v.getMeasuredHeight(); 1461 1462 if (PERFORM_OVERSCROLL_ROTATION) { 1463 if (i == 0 && scrollProgress < 0) { 1464 // Overscroll to the left 1465 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1466 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1467 scale = 1.0f; 1468 alpha = 1.0f; 1469 // On the first page, we don't want the page to have any lateral motion 1470 translationX = 0; 1471 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1472 // Overscroll to the right 1473 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1474 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1475 scale = 1.0f; 1476 alpha = 1.0f; 1477 // On the last page, we don't want the page to have any lateral motion. 1478 translationX = 0; 1479 } else { 1480 v.setPivotY(pageHeight / 2.0f); 1481 v.setPivotX(pageWidth / 2.0f); 1482 v.setRotationY(0f); 1483 } 1484 } 1485 1486 v.setTranslationX(translationX); 1487 v.setScaleX(scale); 1488 v.setScaleY(scale); 1489 v.setAlpha(alpha); 1490 1491 // If the view has 0 alpha, we set it to be invisible so as to prevent 1492 // it from accepting touches 1493 if (alpha == 0) { 1494 v.setVisibility(INVISIBLE); 1495 } else if (v.getVisibility() != VISIBLE) { 1496 v.setVisibility(VISIBLE); 1497 } 1498 } 1499 } 1500 } 1501 1502 protected void overScroll(float amount) { 1503 acceleratedOverScroll(amount); 1504 } 1505 1506 /** 1507 * Used by the parent to get the content width to set the tab bar to 1508 * @return 1509 */ 1510 public int getPageContentWidth() { 1511 return mContentWidth; 1512 } 1513 1514 @Override 1515 protected void onPageEndMoving() { 1516 super.onPageEndMoving(); 1517 1518 // We reset the save index when we change pages so that it will be recalculated on next 1519 // rotation 1520 mSaveInstanceStateItemIndex = -1; 1521 } 1522 1523 /* 1524 * AllAppsView implementation 1525 */ 1526 @Override 1527 public void setup(Launcher launcher, DragController dragController) { 1528 mLauncher = launcher; 1529 mDragController = dragController; 1530 } 1531 @Override 1532 public void zoom(float zoom, boolean animate) { 1533 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1534 } 1535 @Override 1536 public boolean isVisible() { 1537 return (getVisibility() == VISIBLE); 1538 } 1539 @Override 1540 public boolean isAnimating() { 1541 return false; 1542 } 1543 @Override 1544 public void setApps(ArrayList<ApplicationInfo> list) { 1545 mApps = list; 1546 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1547 updatePageCounts(); 1548 1549 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1550 // request a layout to do this test and invalidate the page data when ready. 1551 if (testDataReady()) requestLayout(); 1552 } 1553 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1554 // We add it in place, in alphabetical order 1555 int count = list.size(); 1556 for (int i = 0; i < count; ++i) { 1557 ApplicationInfo info = list.get(i); 1558 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1559 if (index < 0) { 1560 mApps.add(-(index + 1), info); 1561 } 1562 } 1563 } 1564 @Override 1565 public void addApps(ArrayList<ApplicationInfo> list) { 1566 addAppsWithoutInvalidate(list); 1567 updatePageCounts(); 1568 invalidatePageData(); 1569 } 1570 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1571 ComponentName removeComponent = item.intent.getComponent(); 1572 int length = list.size(); 1573 for (int i = 0; i < length; ++i) { 1574 ApplicationInfo info = list.get(i); 1575 if (info.intent.getComponent().equals(removeComponent)) { 1576 return i; 1577 } 1578 } 1579 return -1; 1580 } 1581 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1582 // loop through all the apps and remove apps that have the same component 1583 int length = list.size(); 1584 for (int i = 0; i < length; ++i) { 1585 ApplicationInfo info = list.get(i); 1586 int removeIndex = findAppByComponent(mApps, info); 1587 if (removeIndex > -1) { 1588 mApps.remove(removeIndex); 1589 } 1590 } 1591 } 1592 @Override 1593 public void removeApps(ArrayList<ApplicationInfo> list) { 1594 removeAppsWithoutInvalidate(list); 1595 updatePageCounts(); 1596 invalidatePageData(); 1597 } 1598 @Override 1599 public void updateApps(ArrayList<ApplicationInfo> list) { 1600 // We remove and re-add the updated applications list because it's properties may have 1601 // changed (ie. the title), and this will ensure that the items will be in their proper 1602 // place in the list. 1603 removeAppsWithoutInvalidate(list); 1604 addAppsWithoutInvalidate(list); 1605 updatePageCounts(); 1606 1607 invalidatePageData(); 1608 } 1609 1610 @Override 1611 public void reset() { 1612 // If we have reset, then we should not continue to restore the previous state 1613 mSaveInstanceStateItemIndex = -1; 1614 1615 AppsCustomizeTabHost tabHost = getTabHost(); 1616 String tag = tabHost.getCurrentTabTag(); 1617 if (tag != null) { 1618 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1619 tabHost.setCurrentTabFromContent(ContentType.Applications); 1620 } 1621 } 1622 1623 if (mCurrentPage != 0) { 1624 invalidatePageData(0); 1625 } 1626 } 1627 1628 private AppsCustomizeTabHost getTabHost() { 1629 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1630 } 1631 1632 @Override 1633 public void dumpState() { 1634 // TODO: Dump information related to current list of Applications, Widgets, etc. 1635 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1636 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1637 } 1638 1639 private void dumpAppWidgetProviderInfoList(String tag, String label, 1640 ArrayList<Object> list) { 1641 Log.d(tag, label + " size=" + list.size()); 1642 for (Object i: list) { 1643 if (i instanceof AppWidgetProviderInfo) { 1644 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1645 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1646 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1647 + " initialLayout=" + info.initialLayout 1648 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1649 } else if (i instanceof ResolveInfo) { 1650 ResolveInfo info = (ResolveInfo) i; 1651 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1652 + info.icon); 1653 } 1654 } 1655 } 1656 1657 @Override 1658 public void surrender() { 1659 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1660 // should stop this now. 1661 1662 // Stop all background tasks 1663 cancelAllTasks(); 1664 } 1665 1666 @Override 1667 public void iconPressed(PagedViewIcon icon) { 1668 // Reset the previously pressed icon and store a reference to the pressed icon so that 1669 // we can reset it on return to Launcher (in Launcher.onResume()) 1670 if (mPressedIcon != null) { 1671 mPressedIcon.resetDrawableState(); 1672 } 1673 mPressedIcon = icon; 1674 } 1675 1676 public void resetDrawableState() { 1677 if (mPressedIcon != null) { 1678 mPressedIcon.resetDrawableState(); 1679 mPressedIcon = null; 1680 } 1681 } 1682 1683 /* 1684 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1685 * widget previews in the background with the AsyncTasks. 1686 */ 1687 final static int sLookBehindPageCount = 2; 1688 final static int sLookAheadPageCount = 2; 1689 protected int getAssociatedLowerPageBound(int page) { 1690 final int count = getChildCount(); 1691 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1692 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1693 return windowMinIndex; 1694 } 1695 protected int getAssociatedUpperPageBound(int page) { 1696 final int count = getChildCount(); 1697 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1698 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1699 count - 1); 1700 return windowMaxIndex; 1701 } 1702 1703 @Override 1704 protected String getCurrentPageDescription() { 1705 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1706 int stringId = R.string.default_scroll_format; 1707 int count = 0; 1708 1709 if (page < mNumAppsPages) { 1710 stringId = R.string.apps_customize_apps_scroll_format; 1711 count = mNumAppsPages; 1712 } else { 1713 page -= mNumAppsPages; 1714 stringId = R.string.apps_customize_widgets_scroll_format; 1715 count = mNumWidgetPages; 1716 } 1717 1718 return String.format(getContext().getString(stringId), page + 1, count); 1719 } 1720} 1721