AppsCustomizePagedView.java revision 4ca3922d9d4509b81005ab9625d6d00913911149
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 // Unless otherwise specified this view is important for accessibility. 284 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 285 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 286 } 287 } 288 289 @Override 290 protected void init() { 291 super.init(); 292 mCenterPagesVertically = false; 293 294 Context context = getContext(); 295 Resources r = context.getResources(); 296 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 297 } 298 299 @Override 300 protected void onUnhandledTap(MotionEvent ev) { 301 if (LauncherApplication.isScreenLarge()) { 302 // Dismiss AppsCustomize if we tap 303 mLauncher.showWorkspace(true); 304 } 305 } 306 307 /** Returns the item index of the center item on this page so that we can restore to this 308 * item index when we rotate. */ 309 private int getMiddleComponentIndexOnCurrentPage() { 310 int i = -1; 311 if (getPageCount() > 0) { 312 int currentPage = getCurrentPage(); 313 if (currentPage < mNumAppsPages) { 314 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 315 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 316 int numItemsPerPage = mCellCountX * mCellCountY; 317 int childCount = childrenLayout.getChildCount(); 318 if (childCount > 0) { 319 i = (currentPage * numItemsPerPage) + (childCount / 2); 320 } 321 } else { 322 int numApps = mApps.size(); 323 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 324 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 325 int childCount = layout.getChildCount(); 326 if (childCount > 0) { 327 i = numApps + 328 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 329 } 330 } 331 } 332 return i; 333 } 334 335 /** Get the index of the item to restore to if we need to restore the current page. */ 336 int getSaveInstanceStateIndex() { 337 if (mSaveInstanceStateItemIndex == -1) { 338 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 339 } 340 return mSaveInstanceStateItemIndex; 341 } 342 343 /** Returns the page in the current orientation which is expected to contain the specified 344 * item index. */ 345 int getPageForComponent(int index) { 346 if (index < 0) return 0; 347 348 if (index < mApps.size()) { 349 int numItemsPerPage = mCellCountX * mCellCountY; 350 return (index / numItemsPerPage); 351 } else { 352 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 353 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 354 } 355 } 356 357 /** 358 * This differs from isDataReady as this is the test done if isDataReady is not set. 359 */ 360 private boolean testDataReady() { 361 // We only do this test once, and we default to the Applications page, so we only really 362 // have to wait for there to be apps. 363 // TODO: What if one of them is validly empty 364 return !mApps.isEmpty() && !mWidgets.isEmpty(); 365 } 366 367 /** Restores the page for an item at the specified index */ 368 void restorePageForIndex(int index) { 369 if (index < 0) return; 370 mSaveInstanceStateItemIndex = index; 371 } 372 373 private void updatePageCounts() { 374 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 375 (float) (mWidgetCountX * mWidgetCountY)); 376 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 377 } 378 379 protected void onDataReady(int width, int height) { 380 // Note that we transpose the counts in portrait so that we get a similar layout 381 boolean isLandscape = getResources().getConfiguration().orientation == 382 Configuration.ORIENTATION_LANDSCAPE; 383 int maxCellCountX = Integer.MAX_VALUE; 384 int maxCellCountY = Integer.MAX_VALUE; 385 if (LauncherApplication.isScreenLarge()) { 386 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 387 LauncherModel.getCellCountY()); 388 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 389 LauncherModel.getCellCountX()); 390 } 391 if (mMaxAppCellCountX > -1) { 392 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 393 } 394 if (mMaxAppCellCountY > -1) { 395 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 396 } 397 398 // Now that the data is ready, we can calculate the content width, the number of cells to 399 // use for each page 400 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 401 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 402 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 403 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 404 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 405 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 406 updatePageCounts(); 407 408 // Force a measure to update recalculate the gaps 409 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 410 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 411 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 412 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 413 414 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 415 final boolean hostIsTransitioning = host.isTransitioning(); 416 417 // Restore the page 418 int page = getPageForComponent(mSaveInstanceStateItemIndex); 419 invalidatePageData(Math.max(0, page), hostIsTransitioning); 420 421 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 422 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 423 // returned while animating) 424 if (!hostIsTransitioning) { 425 post(new Runnable() { 426 @Override 427 public void run() { 428 showAllAppsCling(); 429 } 430 }); 431 } 432 } 433 434 void showAllAppsCling() { 435 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 436 mHasShownAllAppsCling = true; 437 // Calculate the position for the cling punch through 438 int[] offset = new int[2]; 439 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 440 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 441 // PagedViews are centered horizontally but top aligned 442 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 443 offset[0]; 444 pos[1] += offset[1]; 445 mLauncher.showFirstRunAllAppsCling(pos); 446 } 447 } 448 449 @Override 450 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 451 int width = MeasureSpec.getSize(widthMeasureSpec); 452 int height = MeasureSpec.getSize(heightMeasureSpec); 453 if (!isDataReady()) { 454 if (testDataReady()) { 455 setDataIsReady(); 456 setMeasuredDimension(width, height); 457 onDataReady(width, height); 458 } 459 } 460 461 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 462 } 463 464 public void onPackagesUpdated() { 465 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 466 // by a broadcast receiver, and in order for it to work correctly, we need to know that 467 // the AppWidgetService has already received and processed the same broadcast. Since there 468 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 469 // we should have a more precise way of ensuring the AppWidgetService is up to date. 470 postDelayed(new Runnable() { 471 public void run() { 472 updatePackages(); 473 } 474 }, 500); 475 } 476 477 public void updatePackages() { 478 // Get the list of widgets and shortcuts 479 boolean wasEmpty = mWidgets.isEmpty(); 480 mWidgets.clear(); 481 List<AppWidgetProviderInfo> widgets = 482 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 483 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 484 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 485 for (AppWidgetProviderInfo widget : widgets) { 486 if (widget.minWidth > 0 && widget.minHeight > 0) { 487 // Ensure that all widgets we show can be added on a workspace of this size 488 int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget); 489 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget); 490 int minSpanX = Math.min(spanXY[0], minSpanXY[0]); 491 int minSpanY = Math.min(spanXY[1], minSpanXY[1]); 492 if (minSpanX <= LauncherModel.getCellCountX() && 493 minSpanY <= LauncherModel.getCellCountY()) { 494 mWidgets.add(widget); 495 } 496 } else { 497 Log.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" + 498 widget.minWidth + ", " + widget.minHeight + ")"); 499 } 500 } 501 mWidgets.addAll(shortcuts); 502 Collections.sort(mWidgets, 503 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 504 updatePageCounts(); 505 506 if (wasEmpty) { 507 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 508 // a layout to do this test and invalidate the page data when ready. 509 if (testDataReady()) requestLayout(); 510 } else { 511 cancelAllTasks(); 512 invalidatePageData(); 513 } 514 } 515 516 @Override 517 public void onClick(View v) { 518 // When we have exited all apps or are in transition, disregard clicks 519 if (!mLauncher.isAllAppsCustomizeOpen() || 520 mLauncher.getWorkspace().isSwitchingState()) return; 521 522 if (v instanceof PagedViewIcon) { 523 // Animate some feedback to the click 524 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 525 526 // Lock the drawable state to pressed until we return to Launcher 527 if (mPressedIcon != null) { 528 mPressedIcon.lockDrawableState(); 529 } 530 531 // NOTE: We want all transitions from launcher to act as if the wallpaper were enabled 532 // to be consistent. So re-enable the flag here, and we will re-disable it as necessary 533 // when Launcher resumes and we are still in AllApps. 534 mLauncher.updateWallpaperVisibility(true); 535 mLauncher.startActivitySafely(v, appInfo.intent, appInfo); 536 537 } else if (v instanceof PagedViewWidget) { 538 // Let the user know that they have to long press to add a widget 539 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 540 Toast.LENGTH_SHORT).show(); 541 542 // Create a little animation to show that the widget can move 543 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 544 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 545 AnimatorSet bounce = new AnimatorSet(); 546 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 547 tyuAnim.setDuration(125); 548 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 549 tydAnim.setDuration(100); 550 bounce.play(tyuAnim).before(tydAnim); 551 bounce.setInterpolator(new AccelerateInterpolator()); 552 bounce.start(); 553 } 554 } 555 556 public boolean onKey(View v, int keyCode, KeyEvent event) { 557 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 558 } 559 560 /* 561 * PagedViewWithDraggableItems implementation 562 */ 563 @Override 564 protected void determineDraggingStart(android.view.MotionEvent ev) { 565 // Disable dragging by pulling an app down for now. 566 } 567 568 private void beginDraggingApplication(View v) { 569 mLauncher.getWorkspace().onDragStartedWithItem(v); 570 mLauncher.getWorkspace().beginDragShared(v, this); 571 } 572 573 private void preloadWidget(final PendingAddWidgetInfo info) { 574 final AppWidgetProviderInfo pInfo = info.info; 575 if (pInfo.configure != null) { 576 return; 577 } 578 579 mBindWidgetRunnable = new Runnable() { 580 @Override 581 public void run() { 582 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 583 if (AppWidgetManager.getInstance(mLauncher) 584 .bindAppWidgetIdIfAllowed(mWidgetLoadingId, info.componentName)) { 585 mWidgetCleanupState = WIDGET_BOUND; 586 } 587 } 588 }; 589 post(mBindWidgetRunnable); 590 591 mInflateWidgetRunnable = new Runnable() { 592 @Override 593 public void run() { 594 AppWidgetHostView hostView = mLauncher. 595 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 596 info.boundWidget = hostView; 597 mWidgetCleanupState = WIDGET_INFLATED; 598 hostView.setVisibility(INVISIBLE); 599 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 600 info.spanY, info, false); 601 602 // We want the first widget layout to be the correct size. This will be important 603 // for width size reporting to the AppWidgetManager. 604 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 605 unScaledSize[1]); 606 lp.x = lp.y = 0; 607 lp.customPosition = true; 608 hostView.setLayoutParams(lp); 609 mLauncher.getDragLayer().addView(hostView); 610 } 611 }; 612 post(mInflateWidgetRunnable); 613 } 614 615 @Override 616 public void onShortPress(View v) { 617 // We are anticipating a long press, and we use this time to load bind and instantiate 618 // the widget. This will need to be cleaned up if it turns out no long press occurs. 619 if (mCreateWidgetInfo != null) { 620 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 621 cleanupWidgetPreloading(false); 622 } 623 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 624 preloadWidget(mCreateWidgetInfo); 625 } 626 627 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 628 if (!widgetWasAdded) { 629 // If the widget was not added, we may need to do further cleanup. 630 PendingAddWidgetInfo info = mCreateWidgetInfo; 631 mCreateWidgetInfo = null; 632 // First step was to allocate a widget id, revert that. 633 if ((mWidgetCleanupState == WIDGET_BOUND || mWidgetCleanupState == WIDGET_INFLATED) && 634 mWidgetLoadingId != -1) { 635 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 636 } 637 if (mWidgetCleanupState == WIDGET_BOUND) { 638 // We never actually inflated the widget, so remove the callback to do so. 639 removeCallbacks(mInflateWidgetRunnable); 640 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 641 // The widget was inflated and added to the DragLayer -- remove it. 642 AppWidgetHostView widget = info.boundWidget; 643 mLauncher.getDragLayer().removeView(widget); 644 } 645 } 646 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 647 mWidgetLoadingId = -1; 648 mCreateWidgetInfo = null; 649 PagedViewWidget.resetShortPressTarget(); 650 } 651 652 @Override 653 public void cleanUpShortPress(View v) { 654 if (!mDraggingWidget) { 655 cleanupWidgetPreloading(false); 656 } 657 } 658 659 private boolean beginDraggingWidget(View v) { 660 mDraggingWidget = true; 661 // Get the widget preview as the drag representation 662 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 663 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 664 665 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 666 // we abort the drag. 667 if (image.getDrawable() == null) { 668 mDraggingWidget = false; 669 return false; 670 } 671 672 // Compose the drag image 673 Bitmap preview; 674 Bitmap outline; 675 float scale = 1f; 676 if (createItemInfo instanceof PendingAddWidgetInfo) { 677 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 678 createItemInfo = createWidgetInfo; 679 int spanX = createItemInfo.spanX; 680 int spanY = createItemInfo.spanY; 681 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 682 createWidgetInfo, true); 683 684 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 685 float minScale = 1.25f; 686 int minWidth, minHeight; 687 minWidth = Math.max((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 688 minHeight = Math.max((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 689 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 690 createWidgetInfo.icon, spanX, spanY, minWidth, minHeight); 691 692 // Determine the image view drawable scale relative to the preview 693 float[] mv = new float[9]; 694 Matrix m = new Matrix(); 695 m.setRectToRect( 696 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 697 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 698 (float) previewDrawable.getIntrinsicHeight()), 699 Matrix.ScaleToFit.START); 700 m.getValues(mv); 701 scale = (float) mv[0]; 702 } else { 703 // Workaround for the fact that we don't keep the original ResolveInfo associated with 704 // the shortcut around. To get the icon, we just render the preview image (which has 705 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 706 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 707 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 708 Drawable d = image.getDrawable(); 709 mCanvas.setBitmap(preview); 710 mCanvas.save(); 711 mCanvas.translate((mWidgetPreviewIconPaddedDimension - d.getIntrinsicWidth()) / 2, 712 (mWidgetPreviewIconPaddedDimension - d.getIntrinsicHeight()) / 2); 713 d.draw(mCanvas); 714 mCanvas.restore(); 715 mCanvas.setBitmap(null); 716 createItemInfo.spanX = createItemInfo.spanY = 1; 717 } 718 719 // We use a custom alpha clip table for the default widget previews 720 Paint alphaClipPaint = null; 721 if (createItemInfo instanceof PendingAddWidgetInfo) { 722 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 723 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 724 alphaClipPaint = new Paint(); 725 alphaClipPaint.setMaskFilter(alphaClipTable); 726 } 727 } 728 729 // Save the preview for the outline generation, then dim the preview 730 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 731 false); 732 733 // Start the drag 734 alphaClipPaint = null; 735 mLauncher.lockScreenOrientation(); 736 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 737 mDragController.startDrag(image, preview, this, createItemInfo, 738 DragController.DRAG_ACTION_COPY, null, scale); 739 outline.recycle(); 740 preview.recycle(); 741 return true; 742 } 743 744 @Override 745 protected boolean beginDragging(final View v) { 746 if (!super.beginDragging(v)) return false; 747 748 if (v instanceof PagedViewIcon) { 749 beginDraggingApplication(v); 750 } else if (v instanceof PagedViewWidget) { 751 if (!beginDraggingWidget(v)) { 752 return false; 753 } 754 } 755 756 // We delay entering spring-loaded mode slightly to make sure the UI 757 // thready is free of any work. 758 postDelayed(new Runnable() { 759 @Override 760 public void run() { 761 // We don't enter spring-loaded mode if the drag has been cancelled 762 if (mLauncher.getDragController().isDragging()) { 763 // Dismiss the cling 764 mLauncher.dismissAllAppsCling(null); 765 766 // Reset the alpha on the dragged icon before we drag 767 resetDrawableState(); 768 769 // Go into spring loaded mode (must happen before we startDrag()) 770 mLauncher.enterSpringLoadedDragMode(); 771 } 772 } 773 }, 150); 774 775 return true; 776 } 777 778 /** 779 * Clean up after dragging. 780 * 781 * @param target where the item was dragged to (can be null if the item was flung) 782 */ 783 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 784 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 785 !(target instanceof DeleteDropTarget))) { 786 // Exit spring loaded mode if we have not successfully dropped or have not handled the 787 // drop in Workspace 788 mLauncher.exitSpringLoadedDragMode(); 789 } 790 mLauncher.unlockScreenOrientation(false); 791 } 792 793 @Override 794 public View getContent() { 795 return null; 796 } 797 798 @Override 799 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 800 mInTransition = true; 801 if (toWorkspace) { 802 cancelAllTasks(); 803 } 804 } 805 806 @Override 807 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 808 } 809 810 @Override 811 public void onLauncherTransitionStep(Launcher l, float t) { 812 } 813 814 @Override 815 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 816 mInTransition = false; 817 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 818 onSyncWidgetPageItems(d); 819 } 820 mDeferredSyncWidgetPageItems.clear(); 821 mForceDrawAllChildrenNextFrame = !toWorkspace; 822 } 823 824 @Override 825 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 826 boolean success) { 827 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 828 if (isFlingToDelete) return; 829 830 endDragging(target, false, success); 831 832 // Display an error message if the drag failed due to there not being enough space on the 833 // target layout we were dropping on. 834 if (!success) { 835 boolean showOutOfSpaceMessage = false; 836 if (target instanceof Workspace) { 837 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 838 Workspace workspace = (Workspace) target; 839 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 840 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 841 if (layout != null) { 842 layout.calculateSpans(itemInfo); 843 showOutOfSpaceMessage = 844 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 845 } 846 } 847 if (showOutOfSpaceMessage) { 848 mLauncher.showOutOfSpaceMessage(false); 849 } 850 851 d.deferDragViewCleanupPostAnimation = false; 852 } 853 cleanupWidgetPreloading(success); 854 mDraggingWidget = false; 855 } 856 857 @Override 858 public void onFlingToDeleteCompleted() { 859 // We just dismiss the drag when we fling, so cleanup here 860 endDragging(null, true, true); 861 cleanupWidgetPreloading(false); 862 mDraggingWidget = false; 863 } 864 865 @Override 866 public boolean supportsFlingToDelete() { 867 return true; 868 } 869 870 @Override 871 protected void onDetachedFromWindow() { 872 super.onDetachedFromWindow(); 873 cancelAllTasks(); 874 } 875 876 public void clearAllWidgetPages() { 877 cancelAllTasks(); 878 int count = getChildCount(); 879 for (int i = 0; i < count; i++) { 880 View v = getPageAt(i); 881 if (v instanceof PagedViewGridLayout) { 882 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 883 mDirtyPageContent.set(i, true); 884 } 885 } 886 } 887 888 private void cancelAllTasks() { 889 // Clean up all the async tasks 890 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 891 while (iter.hasNext()) { 892 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 893 task.cancel(false); 894 iter.remove(); 895 mDirtyPageContent.set(task.page, true); 896 } 897 mDeferredSyncWidgetPageItems.clear(); 898 } 899 900 public void setContentType(ContentType type) { 901 if (type == ContentType.Widgets) { 902 invalidatePageData(mNumAppsPages, true); 903 } else if (type == ContentType.Applications) { 904 invalidatePageData(0, true); 905 } 906 } 907 908 protected void snapToPage(int whichPage, int delta, int duration) { 909 super.snapToPage(whichPage, delta, duration); 910 updateCurrentTab(whichPage); 911 912 // Update the thread priorities given the direction lookahead 913 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 914 while (iter.hasNext()) { 915 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 916 int pageIndex = task.page; 917 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 918 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 919 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 920 } else { 921 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 922 } 923 } 924 } 925 926 private void updateCurrentTab(int currentPage) { 927 AppsCustomizeTabHost tabHost = getTabHost(); 928 if (tabHost != null) { 929 String tag = tabHost.getCurrentTabTag(); 930 if (tag != null) { 931 if (currentPage >= mNumAppsPages && 932 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 933 tabHost.setCurrentTabFromContent(ContentType.Widgets); 934 } else if (currentPage < mNumAppsPages && 935 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 936 tabHost.setCurrentTabFromContent(ContentType.Applications); 937 } 938 } 939 } 940 } 941 942 /* 943 * Apps PagedView implementation 944 */ 945 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 946 int childCount = layout.getChildCount(); 947 for (int i = 0; i < childCount; ++i) { 948 layout.getChildAt(i).setVisibility(visibility); 949 } 950 } 951 private void setupPage(PagedViewCellLayout layout) { 952 layout.setCellCount(mCellCountX, mCellCountY); 953 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 954 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 955 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 956 957 // Note: We force a measure here to get around the fact that when we do layout calculations 958 // immediately after syncing, we don't have a proper width. That said, we already know the 959 // expected page width, so we can actually optimize by hiding all the TextView-based 960 // children that are expensive to measure, and let that happen naturally later. 961 setVisibilityOnChildren(layout, View.GONE); 962 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 963 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 964 layout.setMinimumWidth(getPageContentWidth()); 965 layout.measure(widthSpec, heightSpec); 966 setVisibilityOnChildren(layout, View.VISIBLE); 967 } 968 969 public void syncAppsPageItems(int page, boolean immediate) { 970 // ensure that we have the right number of items on the pages 971 int numCells = mCellCountX * mCellCountY; 972 int startIndex = page * numCells; 973 int endIndex = Math.min(startIndex + numCells, mApps.size()); 974 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 975 976 layout.removeAllViewsOnPage(); 977 ArrayList<Object> items = new ArrayList<Object>(); 978 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 979 for (int i = startIndex; i < endIndex; ++i) { 980 ApplicationInfo info = mApps.get(i); 981 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 982 R.layout.apps_customize_application, layout, false); 983 icon.applyFromApplicationInfo(info, true, this); 984 icon.setOnClickListener(this); 985 icon.setOnLongClickListener(this); 986 icon.setOnTouchListener(this); 987 icon.setOnKeyListener(this); 988 989 int index = i - startIndex; 990 int x = index % mCellCountX; 991 int y = index / mCellCountX; 992 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 993 994 items.add(info); 995 images.add(info.iconBitmap); 996 } 997 998 layout.createHardwareLayers(); 999 } 1000 1001 /** 1002 * A helper to return the priority for loading of the specified widget page. 1003 */ 1004 private int getWidgetPageLoadPriority(int page) { 1005 // If we are snapping to another page, use that index as the target page index 1006 int toPage = mCurrentPage; 1007 if (mNextPage > -1) { 1008 toPage = mNextPage; 1009 } 1010 1011 // We use the distance from the target page as an initial guess of priority, but if there 1012 // are no pages of higher priority than the page specified, then bump up the priority of 1013 // the specified page. 1014 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1015 int minPageDiff = Integer.MAX_VALUE; 1016 while (iter.hasNext()) { 1017 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1018 minPageDiff = Math.abs(task.page - toPage); 1019 } 1020 1021 int rawPageDiff = Math.abs(page - toPage); 1022 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1023 } 1024 /** 1025 * Return the appropriate thread priority for loading for a given page (we give the current 1026 * page much higher priority) 1027 */ 1028 private int getThreadPriorityForPage(int page) { 1029 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1030 int pageDiff = getWidgetPageLoadPriority(page); 1031 if (pageDiff <= 0) { 1032 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1033 } else if (pageDiff <= 1) { 1034 return Process.THREAD_PRIORITY_LOWEST; 1035 } else { 1036 return Process.THREAD_PRIORITY_LOWEST; 1037 } 1038 } 1039 private int getSleepForPage(int page) { 1040 int pageDiff = getWidgetPageLoadPriority(page); 1041 return Math.max(0, pageDiff * sPageSleepDelay); 1042 } 1043 /** 1044 * Creates and executes a new AsyncTask to load a page of widget previews. 1045 */ 1046 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1047 int cellWidth, int cellHeight, int cellCountX) { 1048 1049 // Prune all tasks that are no longer needed 1050 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1051 while (iter.hasNext()) { 1052 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1053 int taskPage = task.page; 1054 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1055 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1056 task.cancel(false); 1057 iter.remove(); 1058 } else { 1059 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1060 } 1061 } 1062 1063 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1064 final int sleepMs = getSleepForPage(page); 1065 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1066 new AsyncTaskCallback() { 1067 @Override 1068 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1069 try { 1070 try { 1071 Thread.sleep(sleepMs); 1072 } catch (Exception e) {} 1073 loadWidgetPreviewsInBackground(task, data); 1074 } finally { 1075 if (task.isCancelled()) { 1076 data.cleanup(true); 1077 } 1078 } 1079 } 1080 }, 1081 new AsyncTaskCallback() { 1082 @Override 1083 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1084 mRunningTasks.remove(task); 1085 if (task.isCancelled()) return; 1086 // do cleanup inside onSyncWidgetPageItems 1087 onSyncWidgetPageItems(data); 1088 } 1089 }); 1090 1091 // Ensure that the task is appropriately prioritized and runs in parallel 1092 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1093 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1094 t.setThreadPriority(getThreadPriorityForPage(page)); 1095 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1096 mRunningTasks.add(t); 1097 } 1098 1099 /* 1100 * Widgets PagedView implementation 1101 */ 1102 private void setupPage(PagedViewGridLayout layout) { 1103 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1104 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1105 1106 // Note: We force a measure here to get around the fact that when we do layout calculations 1107 // immediately after syncing, we don't have a proper width. 1108 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1109 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1110 layout.setMinimumWidth(getPageContentWidth()); 1111 layout.measure(widthSpec, heightSpec); 1112 } 1113 1114 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1115 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 1116 } 1117 1118 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1119 float scale, int multiplyColor) { 1120 if (bitmap != null) { 1121 Canvas c = new Canvas(bitmap); 1122 c.scale(scale, scale); 1123 Rect oldBounds = d.copyBounds(); 1124 d.setBounds(x, y, x + w, y + h); 1125 d.draw(c); 1126 d.setBounds(oldBounds); // Restore the bounds 1127 c.setBitmap(null); 1128 } 1129 } 1130 private Bitmap getShortcutPreview(ResolveInfo info) { 1131 // Render the background 1132 int offset = 0; 1133 int bitmapSize = mAppIconSize; 1134 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1135 1136 // Render the icon 1137 Drawable icon = mIconCache.getFullResIcon(info); 1138 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1139 return preview; 1140 } 1141 1142 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1143 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1144 // Load the preview image if possible 1145 String packageName = provider.getPackageName(); 1146 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1147 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1148 1149 Drawable drawable = null; 1150 if (previewImage != 0) { 1151 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1152 if (drawable == null) { 1153 Log.w(TAG, "Can't load widget preview drawable 0x" + 1154 Integer.toHexString(previewImage) + " for provider: " + provider); 1155 } 1156 } 1157 1158 int bitmapWidth; 1159 int bitmapHeight; 1160 boolean widgetPreviewExists = (drawable != null); 1161 if (widgetPreviewExists) { 1162 bitmapWidth = drawable.getIntrinsicWidth(); 1163 bitmapHeight = drawable.getIntrinsicHeight(); 1164 } else { 1165 if (cellHSpan < 1) cellHSpan = 1; 1166 if (cellVSpan < 1) cellVSpan = 1; 1167 // Determine the size of the bitmap for the preview image we will generate 1168 // TODO: This actually uses the apps customize cell layout params, where as we make want 1169 // the Workspace params for more accuracy. 1170 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1171 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1172 if (cellHSpan == cellVSpan) { 1173 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1174 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1175 if (cellHSpan <= 1) { 1176 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1177 } else { 1178 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1179 } 1180 } 1181 } 1182 1183 float scale = 1f; 1184 if (bitmapWidth > maxWidth) { 1185 scale = maxWidth / (float) bitmapWidth; 1186 } 1187 if (bitmapHeight * scale > maxHeight) { 1188 scale = maxHeight / (float) bitmapHeight; 1189 } 1190 if (scale != 1f) { 1191 bitmapWidth = (int) (scale * bitmapWidth); 1192 bitmapHeight = (int) (scale * bitmapHeight); 1193 } 1194 1195 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1196 1197 if (widgetPreviewExists) { 1198 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1199 } else { 1200 // Generate a preview image if we couldn't load one 1201 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1202 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1203 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1204 if (cellHSpan != 1 || cellVSpan != 1) { 1205 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1206 bitmapHeight); 1207 } 1208 1209 // Draw the icon in the top left corner 1210 try { 1211 Drawable icon = null; 1212 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1213 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1214 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1215 Resources resources = mLauncher.getResources(); 1216 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1217 1218 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1219 (int) (mAppIconSize * iconScale), 1220 (int) (mAppIconSize * iconScale)); 1221 } catch (Resources.NotFoundException e) {} 1222 } 1223 return preview; 1224 } 1225 1226 public void syncWidgetPageItems(final int page, final boolean immediate) { 1227 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1228 1229 // Calculate the dimensions of each cell we are giving to each widget 1230 final ArrayList<Object> items = new ArrayList<Object>(); 1231 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1232 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1233 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1234 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1235 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1236 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1237 1238 // Prepare the set of widgets to load previews for in the background 1239 int offset = (page - mNumAppsPages) * numItemsPerPage; 1240 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1241 items.add(mWidgets.get(i)); 1242 } 1243 1244 // Prepopulate the pages with the other widget info, and fill in the previews later 1245 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1246 layout.setColumnCount(layout.getCellCountX()); 1247 for (int i = 0; i < items.size(); ++i) { 1248 Object rawInfo = items.get(i); 1249 PendingAddItemInfo createItemInfo = null; 1250 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1251 R.layout.apps_customize_widget, layout, false); 1252 if (rawInfo instanceof AppWidgetProviderInfo) { 1253 // Fill in the widget information 1254 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1255 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1256 1257 // Determine the widget spans and min resize spans. 1258 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1259 createItemInfo.spanX = spanXY[0]; 1260 createItemInfo.spanY = spanXY[1]; 1261 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1262 createItemInfo.minSpanX = minSpanXY[0]; 1263 createItemInfo.minSpanY = minSpanXY[1]; 1264 1265 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1266 widget.setTag(createItemInfo); 1267 widget.setShortPressListener(this); 1268 } else if (rawInfo instanceof ResolveInfo) { 1269 // Fill in the shortcuts information 1270 ResolveInfo info = (ResolveInfo) rawInfo; 1271 createItemInfo = new PendingAddItemInfo(); 1272 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1273 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1274 info.activityInfo.name); 1275 widget.applyFromResolveInfo(mPackageManager, info); 1276 widget.setTag(createItemInfo); 1277 } 1278 widget.setOnClickListener(this); 1279 widget.setOnLongClickListener(this); 1280 widget.setOnTouchListener(this); 1281 widget.setOnKeyListener(this); 1282 1283 // Layout each widget 1284 int ix = i % mWidgetCountX; 1285 int iy = i / mWidgetCountX; 1286 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1287 GridLayout.spec(iy, GridLayout.LEFT), 1288 GridLayout.spec(ix, GridLayout.TOP)); 1289 lp.width = cellWidth; 1290 lp.height = cellHeight; 1291 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1292 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1293 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1294 layout.addView(widget, lp); 1295 } 1296 1297 // wait until a call on onLayout to start loading, because 1298 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1299 // TODO: can we do a measure/layout immediately? 1300 layout.setOnLayoutListener(new Runnable() { 1301 public void run() { 1302 // Load the widget previews 1303 int maxPreviewWidth = cellWidth; 1304 int maxPreviewHeight = cellHeight; 1305 if (layout.getChildCount() > 0) { 1306 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1307 int[] maxSize = w.getPreviewSize(); 1308 maxPreviewWidth = maxSize[0]; 1309 maxPreviewHeight = maxSize[1]; 1310 } 1311 if (immediate) { 1312 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1313 maxPreviewWidth, maxPreviewHeight, null, null); 1314 loadWidgetPreviewsInBackground(null, data); 1315 onSyncWidgetPageItems(data); 1316 } else { 1317 prepareLoadWidgetPreviewsTask(page, items, 1318 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1319 } 1320 } 1321 }); 1322 } 1323 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1324 AsyncTaskPageData data) { 1325 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1326 // previews synchronously 1327 if (task != null) { 1328 // Ensure that this task starts running at the correct priority 1329 task.syncThreadPriority(); 1330 } 1331 1332 // Load each of the widget/shortcut previews 1333 ArrayList<Object> items = data.items; 1334 ArrayList<Bitmap> images = data.generatedImages; 1335 int count = items.size(); 1336 for (int i = 0; i < count; ++i) { 1337 if (task != null) { 1338 // Ensure we haven't been cancelled yet 1339 if (task.isCancelled()) break; 1340 // Before work on each item, ensure that this task is running at the correct 1341 // priority 1342 task.syncThreadPriority(); 1343 } 1344 1345 Object rawInfo = items.get(i); 1346 if (rawInfo instanceof AppWidgetProviderInfo) { 1347 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1348 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1349 1350 int maxWidth = Math.min(data.maxImageWidth, 1351 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1352 int maxHeight = Math.min(data.maxImageHeight, 1353 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1354 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1355 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1356 images.add(b); 1357 } else if (rawInfo instanceof ResolveInfo) { 1358 // Fill in the shortcuts information 1359 ResolveInfo info = (ResolveInfo) rawInfo; 1360 images.add(getShortcutPreview(info)); 1361 } 1362 } 1363 } 1364 1365 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1366 if (mInTransition) { 1367 mDeferredSyncWidgetPageItems.add(data); 1368 return; 1369 } 1370 try { 1371 int page = data.page; 1372 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1373 1374 ArrayList<Object> items = data.items; 1375 int count = items.size(); 1376 for (int i = 0; i < count; ++i) { 1377 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1378 if (widget != null) { 1379 Bitmap preview = data.generatedImages.get(i); 1380 widget.applyPreview(new FastBitmapDrawable(preview), i); 1381 } 1382 } 1383 1384 layout.createHardwareLayer(); 1385 invalidate(); 1386 1387 // Update all thread priorities 1388 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1389 while (iter.hasNext()) { 1390 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1391 int pageIndex = task.page; 1392 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1393 } 1394 } finally { 1395 data.cleanup(false); 1396 } 1397 } 1398 1399 @Override 1400 public void syncPages() { 1401 removeAllViews(); 1402 cancelAllTasks(); 1403 1404 Context context = getContext(); 1405 for (int j = 0; j < mNumWidgetPages; ++j) { 1406 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1407 mWidgetCountY); 1408 setupPage(layout); 1409 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1410 LayoutParams.MATCH_PARENT)); 1411 } 1412 1413 for (int i = 0; i < mNumAppsPages; ++i) { 1414 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1415 setupPage(layout); 1416 addView(layout); 1417 } 1418 } 1419 1420 @Override 1421 public void syncPageItems(int page, boolean immediate) { 1422 if (page < mNumAppsPages) { 1423 syncAppsPageItems(page, immediate); 1424 } else { 1425 syncWidgetPageItems(page, immediate); 1426 } 1427 } 1428 1429 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1430 // it is in the z-order. This is important to insure touch events are handled correctly. 1431 View getPageAt(int index) { 1432 return getChildAt(indexToPage(index)); 1433 } 1434 1435 @Override 1436 protected int indexToPage(int index) { 1437 return getChildCount() - index - 1; 1438 } 1439 1440 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1441 @Override 1442 protected void screenScrolled(int screenCenter) { 1443 super.screenScrolled(screenCenter); 1444 1445 for (int i = 0; i < getChildCount(); i++) { 1446 View v = getPageAt(i); 1447 if (v != null) { 1448 float scrollProgress = getScrollProgress(screenCenter, v, i); 1449 1450 float interpolatedProgress = 1451 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1452 float scale = (1 - interpolatedProgress) + 1453 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1454 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1455 1456 float alpha; 1457 1458 if (scrollProgress < 0) { 1459 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1460 1 - Math.abs(scrollProgress)) : 1.0f; 1461 } else { 1462 // On large screens we need to fade the page as it nears its leftmost position 1463 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1464 } 1465 1466 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1467 int pageWidth = v.getMeasuredWidth(); 1468 int pageHeight = v.getMeasuredHeight(); 1469 1470 if (PERFORM_OVERSCROLL_ROTATION) { 1471 if (i == 0 && scrollProgress < 0) { 1472 // Overscroll to the left 1473 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1474 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1475 scale = 1.0f; 1476 alpha = 1.0f; 1477 // On the first page, we don't want the page to have any lateral motion 1478 translationX = 0; 1479 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1480 // Overscroll to the right 1481 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1482 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1483 scale = 1.0f; 1484 alpha = 1.0f; 1485 // On the last page, we don't want the page to have any lateral motion. 1486 translationX = 0; 1487 } else { 1488 v.setPivotY(pageHeight / 2.0f); 1489 v.setPivotX(pageWidth / 2.0f); 1490 v.setRotationY(0f); 1491 } 1492 } 1493 1494 v.setTranslationX(translationX); 1495 v.setScaleX(scale); 1496 v.setScaleY(scale); 1497 v.setAlpha(alpha); 1498 1499 // If the view has 0 alpha, we set it to be invisible so as to prevent 1500 // it from accepting touches 1501 if (alpha == 0) { 1502 v.setVisibility(INVISIBLE); 1503 } else if (v.getVisibility() != VISIBLE) { 1504 v.setVisibility(VISIBLE); 1505 } 1506 } 1507 } 1508 } 1509 1510 protected void overScroll(float amount) { 1511 acceleratedOverScroll(amount); 1512 } 1513 1514 /** 1515 * Used by the parent to get the content width to set the tab bar to 1516 * @return 1517 */ 1518 public int getPageContentWidth() { 1519 return mContentWidth; 1520 } 1521 1522 @Override 1523 protected void onPageEndMoving() { 1524 super.onPageEndMoving(); 1525 mForceDrawAllChildrenNextFrame = true; 1526 // We reset the save index when we change pages so that it will be recalculated on next 1527 // rotation 1528 mSaveInstanceStateItemIndex = -1; 1529 } 1530 1531 /* 1532 * AllAppsView implementation 1533 */ 1534 @Override 1535 public void setup(Launcher launcher, DragController dragController) { 1536 mLauncher = launcher; 1537 mDragController = dragController; 1538 } 1539 @Override 1540 public void zoom(float zoom, boolean animate) { 1541 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1542 } 1543 @Override 1544 public boolean isVisible() { 1545 return (getVisibility() == VISIBLE); 1546 } 1547 @Override 1548 public boolean isAnimating() { 1549 return false; 1550 } 1551 @Override 1552 public void setApps(ArrayList<ApplicationInfo> list) { 1553 mApps = list; 1554 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1555 updatePageCounts(); 1556 1557 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1558 // request a layout to do this test and invalidate the page data when ready. 1559 if (testDataReady()) requestLayout(); 1560 } 1561 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1562 // We add it in place, in alphabetical order 1563 int count = list.size(); 1564 for (int i = 0; i < count; ++i) { 1565 ApplicationInfo info = list.get(i); 1566 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1567 if (index < 0) { 1568 mApps.add(-(index + 1), info); 1569 } 1570 } 1571 } 1572 @Override 1573 public void addApps(ArrayList<ApplicationInfo> list) { 1574 addAppsWithoutInvalidate(list); 1575 updatePageCounts(); 1576 invalidatePageData(); 1577 } 1578 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1579 ComponentName removeComponent = item.intent.getComponent(); 1580 int length = list.size(); 1581 for (int i = 0; i < length; ++i) { 1582 ApplicationInfo info = list.get(i); 1583 if (info.intent.getComponent().equals(removeComponent)) { 1584 return i; 1585 } 1586 } 1587 return -1; 1588 } 1589 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1590 // loop through all the apps and remove apps that have the same component 1591 int length = list.size(); 1592 for (int i = 0; i < length; ++i) { 1593 ApplicationInfo info = list.get(i); 1594 int removeIndex = findAppByComponent(mApps, info); 1595 if (removeIndex > -1) { 1596 mApps.remove(removeIndex); 1597 } 1598 } 1599 } 1600 @Override 1601 public void removeApps(ArrayList<ApplicationInfo> list) { 1602 removeAppsWithoutInvalidate(list); 1603 updatePageCounts(); 1604 invalidatePageData(); 1605 } 1606 @Override 1607 public void updateApps(ArrayList<ApplicationInfo> list) { 1608 // We remove and re-add the updated applications list because it's properties may have 1609 // changed (ie. the title), and this will ensure that the items will be in their proper 1610 // place in the list. 1611 removeAppsWithoutInvalidate(list); 1612 addAppsWithoutInvalidate(list); 1613 updatePageCounts(); 1614 1615 invalidatePageData(); 1616 } 1617 1618 @Override 1619 public void reset() { 1620 // If we have reset, then we should not continue to restore the previous state 1621 mSaveInstanceStateItemIndex = -1; 1622 1623 AppsCustomizeTabHost tabHost = getTabHost(); 1624 String tag = tabHost.getCurrentTabTag(); 1625 if (tag != null) { 1626 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1627 tabHost.setCurrentTabFromContent(ContentType.Applications); 1628 } 1629 } 1630 1631 if (mCurrentPage != 0) { 1632 invalidatePageData(0); 1633 } 1634 } 1635 1636 private AppsCustomizeTabHost getTabHost() { 1637 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1638 } 1639 1640 @Override 1641 public void dumpState() { 1642 // TODO: Dump information related to current list of Applications, Widgets, etc. 1643 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1644 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1645 } 1646 1647 private void dumpAppWidgetProviderInfoList(String tag, String label, 1648 ArrayList<Object> list) { 1649 Log.d(tag, label + " size=" + list.size()); 1650 for (Object i: list) { 1651 if (i instanceof AppWidgetProviderInfo) { 1652 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1653 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1654 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1655 + " initialLayout=" + info.initialLayout 1656 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1657 } else if (i instanceof ResolveInfo) { 1658 ResolveInfo info = (ResolveInfo) i; 1659 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1660 + info.icon); 1661 } 1662 } 1663 } 1664 1665 @Override 1666 public void surrender() { 1667 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1668 // should stop this now. 1669 1670 // Stop all background tasks 1671 cancelAllTasks(); 1672 } 1673 1674 @Override 1675 public void iconPressed(PagedViewIcon icon) { 1676 // Reset the previously pressed icon and store a reference to the pressed icon so that 1677 // we can reset it on return to Launcher (in Launcher.onResume()) 1678 if (mPressedIcon != null) { 1679 mPressedIcon.resetDrawableState(); 1680 } 1681 mPressedIcon = icon; 1682 } 1683 1684 public void resetDrawableState() { 1685 if (mPressedIcon != null) { 1686 mPressedIcon.resetDrawableState(); 1687 mPressedIcon = null; 1688 } 1689 } 1690 1691 /* 1692 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1693 * widget previews in the background with the AsyncTasks. 1694 */ 1695 final static int sLookBehindPageCount = 2; 1696 final static int sLookAheadPageCount = 2; 1697 protected int getAssociatedLowerPageBound(int page) { 1698 final int count = getChildCount(); 1699 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1700 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1701 return windowMinIndex; 1702 } 1703 protected int getAssociatedUpperPageBound(int page) { 1704 final int count = getChildCount(); 1705 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1706 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1707 count - 1); 1708 return windowMaxIndex; 1709 } 1710 1711 @Override 1712 protected String getCurrentPageDescription() { 1713 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1714 int stringId = R.string.default_scroll_format; 1715 int count = 0; 1716 1717 if (page < mNumAppsPages) { 1718 stringId = R.string.apps_customize_apps_scroll_format; 1719 count = mNumAppsPages; 1720 } else { 1721 page -= mNumAppsPages; 1722 stringId = R.string.apps_customize_widgets_scroll_format; 1723 count = mNumWidgetPages; 1724 } 1725 1726 return String.format(getContext().getString(stringId), page + 1, count); 1727 } 1728} 1729