AppsCustomizePagedView.java revision a48487a814c07a9f1f45eb3ffe3d873b3dc31b3b
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.ViewConfiguration; 53import android.view.ViewGroup; 54import android.view.animation.AccelerateInterpolator; 55import android.view.animation.DecelerateInterpolator; 56import android.widget.GridLayout; 57import android.widget.ImageView; 58import android.widget.Toast; 59 60import com.android.launcher.R; 61import com.android.launcher2.DropTarget.DragObject; 62 63import java.util.ArrayList; 64import java.util.Collections; 65import java.util.Iterator; 66import java.util.List; 67 68/** 69 * A simple callback interface which also provides the results of the task. 70 */ 71interface AsyncTaskCallback { 72 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 73} 74 75/** 76 * The data needed to perform either of the custom AsyncTasks. 77 */ 78class AsyncTaskPageData { 79 enum Type { 80 LoadWidgetPreviewData 81 } 82 83 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 84 AsyncTaskCallback postR) { 85 page = p; 86 items = l; 87 sourceImages = si; 88 generatedImages = new ArrayList<Bitmap>(); 89 maxImageWidth = maxImageHeight = -1; 90 doInBackgroundCallback = bgR; 91 postExecuteCallback = postR; 92 } 93 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 94 AsyncTaskCallback postR) { 95 page = p; 96 items = l; 97 generatedImages = new ArrayList<Bitmap>(); 98 maxImageWidth = cw; 99 maxImageHeight = ch; 100 doInBackgroundCallback = bgR; 101 postExecuteCallback = postR; 102 } 103 void cleanup(boolean cancelled) { 104 // Clean up any references to source/generated bitmaps 105 if (sourceImages != null) { 106 if (cancelled) { 107 for (Bitmap b : sourceImages) { 108 b.recycle(); 109 } 110 } 111 sourceImages.clear(); 112 } 113 if (generatedImages != null) { 114 if (cancelled) { 115 for (Bitmap b : generatedImages) { 116 b.recycle(); 117 } 118 } 119 generatedImages.clear(); 120 } 121 } 122 int page; 123 ArrayList<Object> items; 124 ArrayList<Bitmap> sourceImages; 125 ArrayList<Bitmap> generatedImages; 126 int maxImageWidth; 127 int maxImageHeight; 128 AsyncTaskCallback doInBackgroundCallback; 129 AsyncTaskCallback postExecuteCallback; 130} 131 132/** 133 * A generic template for an async task used in AppsCustomize. 134 */ 135class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 136 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 137 page = p; 138 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 139 dataType = ty; 140 } 141 @Override 142 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 143 if (params.length != 1) return null; 144 // Load each of the widget previews in the background 145 params[0].doInBackgroundCallback.run(this, params[0]); 146 return params[0]; 147 } 148 @Override 149 protected void onPostExecute(AsyncTaskPageData result) { 150 // All the widget previews are loaded, so we can just callback to inflate the page 151 result.postExecuteCallback.run(this, result); 152 } 153 154 void setThreadPriority(int p) { 155 threadPriority = p; 156 } 157 void syncThreadPriority() { 158 Process.setThreadPriority(threadPriority); 159 } 160 161 // The page that this async task is associated with 162 AsyncTaskPageData.Type dataType; 163 int page; 164 int threadPriority; 165} 166 167/** 168 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 169 */ 170public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 171 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource, 172 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener, 173 LauncherTransitionable { 174 static final String LOG_TAG = "AppsCustomizePagedView"; 175 176 /** 177 * The different content types that this paged view can show. 178 */ 179 public enum ContentType { 180 Applications, 181 Widgets 182 } 183 184 // Refs 185 private Launcher mLauncher; 186 private DragController mDragController; 187 private final LayoutInflater mLayoutInflater; 188 private final PackageManager mPackageManager; 189 190 // Save and Restore 191 private int mSaveInstanceStateItemIndex = -1; 192 private PagedViewIcon mPressedIcon; 193 194 // Content 195 private ArrayList<ApplicationInfo> mApps; 196 private ArrayList<Object> mWidgets; 197 198 // Cling 199 private boolean mHasShownAllAppsCling; 200 private int mClingFocusedX; 201 private int mClingFocusedY; 202 203 // Caching 204 private Canvas mCanvas; 205 private Drawable mDefaultWidgetBackground; 206 private IconCache mIconCache; 207 208 // Dimens 209 private int mContentWidth; 210 private int mAppIconSize; 211 private int mMaxAppCellCountX, mMaxAppCellCountY; 212 private int mWidgetCountX, mWidgetCountY; 213 private int mWidgetWidthGap, mWidgetHeightGap; 214 private final int mWidgetPreviewIconPaddedDimension; 215 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 216 private PagedViewCellLayout mWidgetSpacingLayout; 217 private int mNumAppsPages; 218 private int mNumWidgetPages; 219 220 // Relating to the scroll and overscroll effects 221 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 222 private static float CAMERA_DISTANCE = 6500; 223 private static float TRANSITION_SCALE_FACTOR = 0.74f; 224 private static float TRANSITION_PIVOT = 0.65f; 225 private static float TRANSITION_MAX_ROTATION = 22; 226 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 227 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 228 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 229 230 // Previews & outlines 231 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 232 private static final int sPageSleepDelay = 200; 233 234 private Runnable mInflateWidgetRunnable = null; 235 private Runnable mBindWidgetRunnable = null; 236 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 237 static final int WIDGET_BOUND = 0; 238 static final int WIDGET_INFLATED = 1; 239 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 240 int mWidgetLoadingId = -1; 241 PendingAddWidgetInfo mCreateWidgetInfo = null; 242 private boolean mDraggingWidget = false; 243 244 // Deferral of loading widget previews during launcher transitions 245 private boolean mInTransition; 246 private ArrayList<AsyncTaskPageData> mDeferredSyncWidgetPageItems = 247 new ArrayList<AsyncTaskPageData>(); 248 249 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 250 super(context, attrs); 251 mLayoutInflater = LayoutInflater.from(context); 252 mPackageManager = context.getPackageManager(); 253 mApps = new ArrayList<ApplicationInfo>(); 254 mWidgets = new ArrayList<Object>(); 255 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 256 mCanvas = new Canvas(); 257 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 258 259 // Save the default widget preview background 260 Resources resources = context.getResources(); 261 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 262 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 263 264 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 265 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 266 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 267 mWidgetWidthGap = 268 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 269 mWidgetHeightGap = 270 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 271 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 272 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 273 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 274 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 275 a.recycle(); 276 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 277 278 // The padding on the non-matched dimension for the default widget preview icons 279 // (top + bottom) 280 mWidgetPreviewIconPaddedDimension = 281 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 282 mFadeInAdjacentScreens = false; 283 } 284 285 @Override 286 protected void init() { 287 super.init(); 288 mCenterPagesVertically = false; 289 290 Context context = getContext(); 291 Resources r = context.getResources(); 292 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 293 } 294 295 @Override 296 protected void onUnhandledTap(MotionEvent ev) { 297 if (LauncherApplication.isScreenLarge()) { 298 // Dismiss AppsCustomize if we tap 299 mLauncher.showWorkspace(true); 300 } 301 } 302 303 /** Returns the item index of the center item on this page so that we can restore to this 304 * item index when we rotate. */ 305 private int getMiddleComponentIndexOnCurrentPage() { 306 int i = -1; 307 if (getPageCount() > 0) { 308 int currentPage = getCurrentPage(); 309 if (currentPage < mNumAppsPages) { 310 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 311 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 312 int numItemsPerPage = mCellCountX * mCellCountY; 313 int childCount = childrenLayout.getChildCount(); 314 if (childCount > 0) { 315 i = (currentPage * numItemsPerPage) + (childCount / 2); 316 } 317 } else { 318 int numApps = mApps.size(); 319 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 320 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 321 int childCount = layout.getChildCount(); 322 if (childCount > 0) { 323 i = numApps + 324 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 325 } 326 } 327 } 328 return i; 329 } 330 331 /** Get the index of the item to restore to if we need to restore the current page. */ 332 int getSaveInstanceStateIndex() { 333 if (mSaveInstanceStateItemIndex == -1) { 334 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 335 } 336 return mSaveInstanceStateItemIndex; 337 } 338 339 /** Returns the page in the current orientation which is expected to contain the specified 340 * item index. */ 341 int getPageForComponent(int index) { 342 if (index < 0) return 0; 343 344 if (index < mApps.size()) { 345 int numItemsPerPage = mCellCountX * mCellCountY; 346 return (index / numItemsPerPage); 347 } else { 348 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 349 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 350 } 351 } 352 353 /** 354 * This differs from isDataReady as this is the test done if isDataReady is not set. 355 */ 356 private boolean testDataReady() { 357 // We only do this test once, and we default to the Applications page, so we only really 358 // have to wait for there to be apps. 359 // TODO: What if one of them is validly empty 360 return !mApps.isEmpty() && !mWidgets.isEmpty(); 361 } 362 363 /** Restores the page for an item at the specified index */ 364 void restorePageForIndex(int index) { 365 if (index < 0) return; 366 mSaveInstanceStateItemIndex = index; 367 } 368 369 private void updatePageCounts() { 370 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 371 (float) (mWidgetCountX * mWidgetCountY)); 372 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 373 } 374 375 protected void onDataReady(int width, int height) { 376 // Note that we transpose the counts in portrait so that we get a similar layout 377 boolean isLandscape = getResources().getConfiguration().orientation == 378 Configuration.ORIENTATION_LANDSCAPE; 379 int maxCellCountX = Integer.MAX_VALUE; 380 int maxCellCountY = Integer.MAX_VALUE; 381 if (LauncherApplication.isScreenLarge()) { 382 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 383 LauncherModel.getCellCountY()); 384 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 385 LauncherModel.getCellCountX()); 386 } 387 if (mMaxAppCellCountX > -1) { 388 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 389 } 390 if (mMaxAppCellCountY > -1) { 391 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 392 } 393 394 // Now that the data is ready, we can calculate the content width, the number of cells to 395 // use for each page 396 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 397 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 398 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 399 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 400 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 401 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 402 updatePageCounts(); 403 404 // Force a measure to update recalculate the gaps 405 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 406 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 407 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 408 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 409 410 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 411 final boolean hostIsTransitioning = host.isTransitioning(); 412 413 // Restore the page 414 int page = getPageForComponent(mSaveInstanceStateItemIndex); 415 invalidatePageData(Math.max(0, page), hostIsTransitioning); 416 417 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 418 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 419 // returned while animating) 420 if (!hostIsTransitioning) { 421 post(new Runnable() { 422 @Override 423 public void run() { 424 showAllAppsCling(); 425 } 426 }); 427 } 428 } 429 430 void showAllAppsCling() { 431 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 432 mHasShownAllAppsCling = true; 433 // Calculate the position for the cling punch through 434 int[] offset = new int[2]; 435 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 436 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 437 // PagedViews are centered horizontally but top aligned 438 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 439 offset[0]; 440 pos[1] += offset[1]; 441 mLauncher.showFirstRunAllAppsCling(pos); 442 } 443 } 444 445 @Override 446 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 447 int width = MeasureSpec.getSize(widthMeasureSpec); 448 int height = MeasureSpec.getSize(heightMeasureSpec); 449 if (!isDataReady()) { 450 if (testDataReady()) { 451 setDataIsReady(); 452 setMeasuredDimension(width, height); 453 onDataReady(width, height); 454 } 455 } 456 457 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 458 } 459 460 public void onPackagesUpdated() { 461 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 462 // by a broadcast receiver, and in order for it to work correctly, we need to know that 463 // the AppWidgetService has already received and processed the same broadcast. Since there 464 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 465 // we should have a more precise way of ensuring the AppWidgetService is up to date. 466 postDelayed(new Runnable() { 467 public void run() { 468 updatePackages(); 469 } 470 }, 500); 471 } 472 473 public void updatePackages() { 474 // Get the list of widgets and shortcuts 475 boolean wasEmpty = mWidgets.isEmpty(); 476 mWidgets.clear(); 477 List<AppWidgetProviderInfo> widgets = 478 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 479 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 480 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 481 for (AppWidgetProviderInfo widget : widgets) { 482 if (widget.minWidth > 0 && widget.minHeight > 0) { 483 mWidgets.add(widget); 484 } else { 485 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 486 widget.minWidth + ", " + widget.minHeight + ")"); 487 } 488 } 489 mWidgets.addAll(shortcuts); 490 Collections.sort(mWidgets, 491 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 492 updatePageCounts(); 493 494 if (wasEmpty) { 495 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 496 // a layout to do this test and invalidate the page data when ready. 497 if (testDataReady()) requestLayout(); 498 } else { 499 cancelAllTasks(); 500 invalidatePageData(); 501 } 502 } 503 504 @Override 505 public void onClick(View v) { 506 // When we have exited all apps or are in transition, disregard clicks 507 if (!mLauncher.isAllAppsCustomizeOpen() || 508 mLauncher.getWorkspace().isSwitchingState()) return; 509 510 if (v instanceof PagedViewIcon) { 511 // Animate some feedback to the click 512 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 513 mLauncher.startActivitySafely(appInfo.intent, appInfo); 514 515 // Lock the drawable state to pressed until we return to Launcher 516 if (mPressedIcon != null) { 517 mPressedIcon.lockDrawableState(); 518 } 519 } else if (v instanceof PagedViewWidget) { 520 // Let the user know that they have to long press to add a widget 521 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 522 Toast.LENGTH_SHORT).show(); 523 524 // Create a little animation to show that the widget can move 525 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 526 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 527 AnimatorSet bounce = new AnimatorSet(); 528 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 529 tyuAnim.setDuration(125); 530 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 531 tydAnim.setDuration(100); 532 bounce.play(tyuAnim).before(tydAnim); 533 bounce.setInterpolator(new AccelerateInterpolator()); 534 bounce.start(); 535 } 536 } 537 538 public boolean onKey(View v, int keyCode, KeyEvent event) { 539 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 540 } 541 542 /* 543 * PagedViewWithDraggableItems implementation 544 */ 545 @Override 546 protected void determineDraggingStart(android.view.MotionEvent ev) { 547 // Disable dragging by pulling an app down for now. 548 } 549 550 private void beginDraggingApplication(View v) { 551 mLauncher.getWorkspace().onDragStartedWithItem(v); 552 mLauncher.getWorkspace().beginDragShared(v, this); 553 } 554 555 private void loadWidgetInBackground(final PendingAddWidgetInfo info) { 556 final AppWidgetProviderInfo pInfo = info.info; 557 if (pInfo.configure != null) { 558 return; 559 } 560 561 mBindWidgetRunnable = new Runnable() { 562 @Override 563 public void run() { 564 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 565 AppWidgetManager.getInstance(mLauncher).bindAppWidgetId(mWidgetLoadingId, 566 info.componentName); 567 mWidgetCleanupState = WIDGET_BOUND; 568 } 569 }; 570 post(mBindWidgetRunnable); 571 572 mInflateWidgetRunnable = new Runnable() { 573 @Override 574 public void run() { 575 AppWidgetHostView hostView = 576 mLauncher.getAppWidgetHost().createView(mContext, mWidgetLoadingId, pInfo); 577 info.boundWidget = hostView; 578 mWidgetCleanupState = WIDGET_INFLATED; 579 hostView.setVisibility(INVISIBLE); 580 mLauncher.getDragLayer().addView(hostView); 581 } 582 }; 583 post(mInflateWidgetRunnable); 584 } 585 586 @Override 587 public void onShortPress(View v) { 588 // We are anticipating a long press, and we use this time to load bind and instantiate 589 // the widget. This will need to be cleaned up if it turns out no long press occurs. 590 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 591 loadWidgetInBackground(mCreateWidgetInfo); 592 } 593 594 private void cleanupWidgetPreloading() { 595 PendingAddWidgetInfo info = mCreateWidgetInfo; 596 mCreateWidgetInfo = null; 597 if (mWidgetCleanupState >= 0 && mWidgetLoadingId != -1) { 598 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 599 } 600 if (mWidgetCleanupState == WIDGET_BOUND) { 601 removeCallbacks(mInflateWidgetRunnable); 602 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 603 AppWidgetHostView widget = info.boundWidget; 604 int widgetId = widget.getAppWidgetId(); 605 mLauncher.getAppWidgetHost().deleteAppWidgetId(widgetId); 606 mLauncher.getDragLayer().removeView(widget); 607 } 608 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 609 mWidgetLoadingId = -1; 610 } 611 612 @Override 613 public void cleanUpShortPress(View v) { 614 if (!mDraggingWidget) { 615 cleanupWidgetPreloading(); 616 } 617 } 618 619 private void beginDraggingWidget(View v) { 620 mDraggingWidget = true; 621 // Get the widget preview as the drag representation 622 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 623 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 624 625 // Compose the drag image 626 Bitmap preview; 627 Bitmap outline; 628 float scale = 1f; 629 if (createItemInfo instanceof PendingAddWidgetInfo) { 630 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 631 createItemInfo = createWidgetInfo; 632 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 633 int[] size = mLauncher.getWorkspace().estimateItemSize(spanXY[0], 634 spanXY[1], createWidgetInfo, true); 635 createItemInfo.spanX = spanXY[0]; 636 createItemInfo.spanY = spanXY[1]; 637 int[] minSpanXY = mLauncher.getMinSpanForWidget(createWidgetInfo, null); 638 createWidgetInfo.minSpanX = minSpanXY[0]; 639 createWidgetInfo.minSpanY = minSpanXY[1]; 640 641 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 642 float minScale = 1.25f; 643 int minWidth, minHeight; 644 minWidth = Math.max((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 645 minHeight = Math.max((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 646 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 647 createWidgetInfo.icon, spanXY[0], spanXY[1], minWidth, minHeight); 648 649 // Determine the image view drawable scale relative to the preview 650 float[] mv = new float[9]; 651 Matrix m = new Matrix(); 652 m.setRectToRect( 653 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 654 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 655 (float) previewDrawable.getIntrinsicHeight()), 656 Matrix.ScaleToFit.START); 657 m.getValues(mv); 658 scale = (float) mv[0]; 659 } else { 660 // Workaround for the fact that we don't keep the original ResolveInfo associated with 661 // the shortcut around. To get the icon, we just render the preview image (which has 662 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 663 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 664 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 665 Drawable d = image.getDrawable(); 666 mCanvas.setBitmap(preview); 667 d.draw(mCanvas); 668 mCanvas.setBitmap(null); 669 createItemInfo.spanX = createItemInfo.spanY = 1; 670 } 671 672 // We use a custom alpha clip table for the default widget previews 673 Paint alphaClipPaint = null; 674 if (createItemInfo instanceof PendingAddWidgetInfo) { 675 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 676 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 677 alphaClipPaint = new Paint(); 678 alphaClipPaint.setMaskFilter(alphaClipTable); 679 } 680 } 681 682 // Save the preview for the outline generation, then dim the preview 683 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 684 false); 685 686 // Start the drag 687 alphaClipPaint = null; 688 mLauncher.lockScreenOrientationOnLargeUI(); 689 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 690 mDragController.startDrag(image, preview, this, createItemInfo, 691 DragController.DRAG_ACTION_COPY, null, scale); 692 outline.recycle(); 693 preview.recycle(); 694 } 695 696 @Override 697 protected boolean beginDragging(final View v) { 698 if (!super.beginDragging(v)) return false; 699 700 if (v instanceof PagedViewIcon) { 701 beginDraggingApplication(v); 702 } else if (v instanceof PagedViewWidget) { 703 beginDraggingWidget(v); 704 } 705 706 // We delay entering spring-loaded mode slightly to make sure the UI 707 // thready is free of any work. 708 postDelayed(new Runnable() { 709 @Override 710 public void run() { 711 // We don't enter spring-loaded mode if the drag has been cancelled 712 if (mLauncher.getDragController().isDragging()) { 713 // Dismiss the cling 714 mLauncher.dismissAllAppsCling(null); 715 716 // Reset the alpha on the dragged icon before we drag 717 resetDrawableState(); 718 719 // Go into spring loaded mode (must happen before we startDrag()) 720 mLauncher.enterSpringLoadedDragMode(); 721 } 722 } 723 }, 150); 724 725 return true; 726 } 727 728 /** 729 * Clean up after dragging. 730 * 731 * @param target where the item was dragged to (can be null if the item was flung) 732 */ 733 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 734 mLauncher.getWorkspace().onDragStopped(success); 735 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 736 !(target instanceof DeleteDropTarget))) { 737 // Exit spring loaded mode if we have not successfully dropped or have not handled the 738 // drop in Workspace 739 mLauncher.exitSpringLoadedDragMode(); 740 } 741 mLauncher.unlockScreenOrientationOnLargeUI(); 742 } 743 744 @Override 745 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 746 mInTransition = true; 747 if (toWorkspace) { 748 cancelAllTasks(); 749 } 750 } 751 752 @Override 753 public View getContent() { 754 return null; 755 } 756 757 @Override 758 public void onLauncherTransitionStep(Launcher l, float t) { 759 } 760 761 @Override 762 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 763 mInTransition = false; 764 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 765 onSyncWidgetPageItems(d); 766 } 767 mDeferredSyncWidgetPageItems.clear(); 768 } 769 770 @Override 771 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 772 boolean success) { 773 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 774 if (isFlingToDelete) return; 775 776 endDragging(target, false, success); 777 778 // Display an error message if the drag failed due to there not being enough space on the 779 // target layout we were dropping on. 780 if (!success) { 781 boolean showOutOfSpaceMessage = false; 782 if (target instanceof Workspace) { 783 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 784 Workspace workspace = (Workspace) target; 785 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 786 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 787 if (layout != null) { 788 layout.calculateSpans(itemInfo); 789 showOutOfSpaceMessage = 790 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 791 } 792 } 793 if (showOutOfSpaceMessage) { 794 mLauncher.showOutOfSpaceMessage(); 795 } 796 797 d.deferDragViewCleanupPostAnimation = false; 798 cleanupWidgetPreloading(); 799 } 800 mDraggingWidget = false; 801 } 802 803 @Override 804 public void onFlingToDeleteCompleted() { 805 // We just dismiss the drag when we fling, so cleanup here 806 endDragging(null, true, true); 807 cleanupWidgetPreloading(); 808 mDraggingWidget = false; 809 } 810 811 @Override 812 public boolean supportsFlingToDelete() { 813 return true; 814 } 815 816 @Override 817 protected void onDetachedFromWindow() { 818 super.onDetachedFromWindow(); 819 cancelAllTasks(); 820 } 821 822 public void clearAllWidgetPages() { 823 cancelAllTasks(); 824 int count = getChildCount(); 825 for (int i = 0; i < count; i++) { 826 View v = getPageAt(i); 827 if (v instanceof PagedViewGridLayout) { 828 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 829 mDirtyPageContent.set(i, true); 830 } 831 } 832 } 833 834 private void cancelAllTasks() { 835 // Clean up all the async tasks 836 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 837 while (iter.hasNext()) { 838 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 839 task.cancel(false); 840 iter.remove(); 841 mDirtyPageContent.set(task.page, true); 842 } 843 } 844 845 public void setContentType(ContentType type) { 846 if (type == ContentType.Widgets) { 847 invalidatePageData(mNumAppsPages, true); 848 } else if (type == ContentType.Applications) { 849 invalidatePageData(0, true); 850 } 851 } 852 853 protected void snapToPage(int whichPage, int delta, int duration) { 854 super.snapToPage(whichPage, delta, duration); 855 updateCurrentTab(whichPage); 856 857 // Update the thread priorities given the direction lookahead 858 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 859 while (iter.hasNext()) { 860 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 861 int pageIndex = task.page; 862 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 863 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 864 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 865 } else { 866 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 867 } 868 } 869 } 870 871 private void updateCurrentTab(int currentPage) { 872 AppsCustomizeTabHost tabHost = getTabHost(); 873 if (tabHost != null) { 874 String tag = tabHost.getCurrentTabTag(); 875 if (tag != null) { 876 if (currentPage >= mNumAppsPages && 877 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 878 tabHost.setCurrentTabFromContent(ContentType.Widgets); 879 } else if (currentPage < mNumAppsPages && 880 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 881 tabHost.setCurrentTabFromContent(ContentType.Applications); 882 } 883 } 884 } 885 } 886 887 /* 888 * Apps PagedView implementation 889 */ 890 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 891 int childCount = layout.getChildCount(); 892 for (int i = 0; i < childCount; ++i) { 893 layout.getChildAt(i).setVisibility(visibility); 894 } 895 } 896 private void setupPage(PagedViewCellLayout layout) { 897 layout.setCellCount(mCellCountX, mCellCountY); 898 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 899 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 900 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 901 902 // Note: We force a measure here to get around the fact that when we do layout calculations 903 // immediately after syncing, we don't have a proper width. That said, we already know the 904 // expected page width, so we can actually optimize by hiding all the TextView-based 905 // children that are expensive to measure, and let that happen naturally later. 906 setVisibilityOnChildren(layout, View.GONE); 907 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 908 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 909 layout.setMinimumWidth(getPageContentWidth()); 910 layout.measure(widthSpec, heightSpec); 911 setVisibilityOnChildren(layout, View.VISIBLE); 912 } 913 914 public void syncAppsPageItems(int page, boolean immediate) { 915 // ensure that we have the right number of items on the pages 916 int numCells = mCellCountX * mCellCountY; 917 int startIndex = page * numCells; 918 int endIndex = Math.min(startIndex + numCells, mApps.size()); 919 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 920 921 layout.removeAllViewsOnPage(); 922 ArrayList<Object> items = new ArrayList<Object>(); 923 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 924 for (int i = startIndex; i < endIndex; ++i) { 925 ApplicationInfo info = mApps.get(i); 926 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 927 R.layout.apps_customize_application, layout, false); 928 icon.applyFromApplicationInfo(info, true, this); 929 icon.setOnClickListener(this); 930 icon.setOnLongClickListener(this); 931 icon.setOnTouchListener(this); 932 icon.setOnKeyListener(this); 933 934 int index = i - startIndex; 935 int x = index % mCellCountX; 936 int y = index / mCellCountX; 937 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 938 939 items.add(info); 940 images.add(info.iconBitmap); 941 } 942 943 layout.createHardwareLayers(); 944 } 945 946 /** 947 * A helper to return the priority for loading of the specified widget page. 948 */ 949 private int getWidgetPageLoadPriority(int page) { 950 // If we are snapping to another page, use that index as the target page index 951 int toPage = mCurrentPage; 952 if (mNextPage > -1) { 953 toPage = mNextPage; 954 } 955 956 // We use the distance from the target page as an initial guess of priority, but if there 957 // are no pages of higher priority than the page specified, then bump up the priority of 958 // the specified page. 959 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 960 int minPageDiff = Integer.MAX_VALUE; 961 while (iter.hasNext()) { 962 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 963 minPageDiff = Math.abs(task.page - toPage); 964 } 965 966 int rawPageDiff = Math.abs(page - toPage); 967 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 968 } 969 /** 970 * Return the appropriate thread priority for loading for a given page (we give the current 971 * page much higher priority) 972 */ 973 private int getThreadPriorityForPage(int page) { 974 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 975 int pageDiff = getWidgetPageLoadPriority(page); 976 if (pageDiff <= 0) { 977 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 978 } else if (pageDiff <= 1) { 979 return Process.THREAD_PRIORITY_LOWEST; 980 } else { 981 return Process.THREAD_PRIORITY_LOWEST; 982 } 983 } 984 private int getSleepForPage(int page) { 985 int pageDiff = getWidgetPageLoadPriority(page); 986 return Math.max(0, pageDiff * sPageSleepDelay); 987 } 988 /** 989 * Creates and executes a new AsyncTask to load a page of widget previews. 990 */ 991 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 992 int cellWidth, int cellHeight, int cellCountX) { 993 994 // Prune all tasks that are no longer needed 995 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 996 while (iter.hasNext()) { 997 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 998 int taskPage = task.page; 999 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1000 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1001 task.cancel(false); 1002 iter.remove(); 1003 } else { 1004 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1005 } 1006 } 1007 1008 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1009 final int sleepMs = getSleepForPage(page); 1010 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1011 new AsyncTaskCallback() { 1012 @Override 1013 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1014 try { 1015 try { 1016 Thread.sleep(sleepMs); 1017 } catch (Exception e) {} 1018 loadWidgetPreviewsInBackground(task, data); 1019 } finally { 1020 if (task.isCancelled()) { 1021 data.cleanup(true); 1022 } 1023 } 1024 } 1025 }, 1026 new AsyncTaskCallback() { 1027 @Override 1028 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1029 mRunningTasks.remove(task); 1030 if (task.isCancelled()) return; 1031 // do cleanup inside onSyncWidgetPageItems 1032 onSyncWidgetPageItems(data); 1033 } 1034 }); 1035 1036 // Ensure that the task is appropriately prioritized and runs in parallel 1037 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1038 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1039 t.setThreadPriority(getThreadPriorityForPage(page)); 1040 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1041 mRunningTasks.add(t); 1042 } 1043 1044 /* 1045 * Widgets PagedView implementation 1046 */ 1047 private void setupPage(PagedViewGridLayout layout) { 1048 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1049 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1050 1051 // Note: We force a measure here to get around the fact that when we do layout calculations 1052 // immediately after syncing, we don't have a proper width. 1053 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1054 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1055 layout.setMinimumWidth(getPageContentWidth()); 1056 layout.measure(widthSpec, heightSpec); 1057 } 1058 1059 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1060 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 1061 } 1062 1063 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1064 float scale, int multiplyColor) { 1065 if (bitmap != null) { 1066 Canvas c = new Canvas(bitmap); 1067 c.scale(scale, scale); 1068 Rect oldBounds = d.copyBounds(); 1069 d.setBounds(x, y, x + w, y + h); 1070 d.draw(c); 1071 d.setBounds(oldBounds); // Restore the bounds 1072 c.setBitmap(null); 1073 } 1074 } 1075 private Bitmap getShortcutPreview(ResolveInfo info) { 1076 // Render the background 1077 int offset = 0; 1078 int bitmapSize = mAppIconSize; 1079 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1080 1081 // Render the icon 1082 Drawable icon = mIconCache.getFullResIcon(info); 1083 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1084 return preview; 1085 } 1086 1087 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1088 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1089 // Load the preview image if possible 1090 String packageName = provider.getPackageName(); 1091 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1092 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1093 1094 Drawable drawable = null; 1095 if (previewImage != 0) { 1096 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1097 if (drawable == null) { 1098 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1099 Integer.toHexString(previewImage) + " for provider: " + provider); 1100 } 1101 } 1102 1103 int bitmapWidth; 1104 int bitmapHeight; 1105 boolean widgetPreviewExists = (drawable != null); 1106 if (widgetPreviewExists) { 1107 bitmapWidth = drawable.getIntrinsicWidth(); 1108 bitmapHeight = drawable.getIntrinsicHeight(); 1109 } else { 1110 // Determine the size of the bitmap for the preview image we will generate 1111 // TODO: This actually uses the apps customize cell layout params, where as we make want 1112 // the Workspace params for more accuracy. 1113 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1114 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1115 if (cellHSpan == cellVSpan) { 1116 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1117 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1118 if (cellHSpan <= 1) { 1119 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1120 } else { 1121 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1122 } 1123 } 1124 } 1125 1126 float scale = 1f; 1127 if (bitmapWidth > maxWidth) { 1128 scale = maxWidth / (float) bitmapWidth; 1129 } 1130 if (bitmapHeight * scale > maxHeight) { 1131 scale = maxHeight / (float) bitmapHeight; 1132 } 1133 if (scale != 1f) { 1134 bitmapWidth = (int) (scale * bitmapWidth); 1135 bitmapHeight = (int) (scale * bitmapHeight); 1136 } 1137 1138 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1139 1140 if (widgetPreviewExists) { 1141 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1142 } else { 1143 // Generate a preview image if we couldn't load one 1144 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1145 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1146 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1147 if (cellHSpan != 1 || cellVSpan != 1) { 1148 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1149 bitmapHeight); 1150 } 1151 1152 // Draw the icon in the top left corner 1153 try { 1154 Drawable icon = null; 1155 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1156 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1157 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1158 Resources resources = mLauncher.getResources(); 1159 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1160 1161 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1162 (int) (mAppIconSize * iconScale), 1163 (int) (mAppIconSize * iconScale)); 1164 } catch (Resources.NotFoundException e) {} 1165 } 1166 return preview; 1167 } 1168 1169 public void syncWidgetPageItems(final int page, final boolean immediate) { 1170 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1171 1172 // Calculate the dimensions of each cell we are giving to each widget 1173 final ArrayList<Object> items = new ArrayList<Object>(); 1174 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1175 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1176 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1177 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1178 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1179 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1180 1181 // Prepare the set of widgets to load previews for in the background 1182 int offset = (page - mNumAppsPages) * numItemsPerPage; 1183 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1184 items.add(mWidgets.get(i)); 1185 } 1186 1187 // Prepopulate the pages with the other widget info, and fill in the previews later 1188 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1189 layout.setColumnCount(layout.getCellCountX()); 1190 for (int i = 0; i < items.size(); ++i) { 1191 Object rawInfo = items.get(i); 1192 PendingAddItemInfo createItemInfo = null; 1193 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1194 R.layout.apps_customize_widget, layout, false); 1195 if (rawInfo instanceof AppWidgetProviderInfo) { 1196 // Fill in the widget information 1197 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1198 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1199 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1200 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans); 1201 widget.setTag(createItemInfo); 1202 widget.setShortPressListener(this); 1203 } else if (rawInfo instanceof ResolveInfo) { 1204 // Fill in the shortcuts information 1205 ResolveInfo info = (ResolveInfo) rawInfo; 1206 createItemInfo = new PendingAddItemInfo(); 1207 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1208 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1209 info.activityInfo.name); 1210 widget.applyFromResolveInfo(mPackageManager, info); 1211 widget.setTag(createItemInfo); 1212 } 1213 widget.setOnClickListener(this); 1214 widget.setOnLongClickListener(this); 1215 widget.setOnTouchListener(this); 1216 widget.setOnKeyListener(this); 1217 1218 // Layout each widget 1219 int ix = i % mWidgetCountX; 1220 int iy = i / mWidgetCountX; 1221 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1222 GridLayout.spec(iy, GridLayout.LEFT), 1223 GridLayout.spec(ix, GridLayout.TOP)); 1224 lp.width = cellWidth; 1225 lp.height = cellHeight; 1226 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1227 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1228 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1229 layout.addView(widget, lp); 1230 } 1231 1232 // wait until a call on onLayout to start loading, because 1233 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1234 // TODO: can we do a measure/layout immediately? 1235 layout.setOnLayoutListener(new Runnable() { 1236 public void run() { 1237 // Load the widget previews 1238 int maxPreviewWidth = cellWidth; 1239 int maxPreviewHeight = cellHeight; 1240 if (layout.getChildCount() > 0) { 1241 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1242 int[] maxSize = w.getPreviewSize(); 1243 maxPreviewWidth = maxSize[0]; 1244 maxPreviewHeight = maxSize[1]; 1245 } 1246 if (immediate) { 1247 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1248 maxPreviewWidth, maxPreviewHeight, null, null); 1249 loadWidgetPreviewsInBackground(null, data); 1250 onSyncWidgetPageItems(data); 1251 } else { 1252 prepareLoadWidgetPreviewsTask(page, items, 1253 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1254 } 1255 } 1256 }); 1257 } 1258 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1259 AsyncTaskPageData data) { 1260 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1261 // previews synchronously 1262 if (task != null) { 1263 // Ensure that this task starts running at the correct priority 1264 task.syncThreadPriority(); 1265 } 1266 1267 // Load each of the widget/shortcut previews 1268 ArrayList<Object> items = data.items; 1269 ArrayList<Bitmap> images = data.generatedImages; 1270 int count = items.size(); 1271 for (int i = 0; i < count; ++i) { 1272 if (task != null) { 1273 // Ensure we haven't been cancelled yet 1274 if (task.isCancelled()) break; 1275 // Before work on each item, ensure that this task is running at the correct 1276 // priority 1277 task.syncThreadPriority(); 1278 } 1279 1280 Object rawInfo = items.get(i); 1281 if (rawInfo instanceof AppWidgetProviderInfo) { 1282 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1283 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1284 1285 int maxWidth = Math.min(data.maxImageWidth, 1286 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1287 int maxHeight = Math.min(data.maxImageHeight, 1288 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1289 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1290 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1291 images.add(b); 1292 } else if (rawInfo instanceof ResolveInfo) { 1293 // Fill in the shortcuts information 1294 ResolveInfo info = (ResolveInfo) rawInfo; 1295 images.add(getShortcutPreview(info)); 1296 } 1297 } 1298 } 1299 1300 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1301 if (mInTransition) { 1302 mDeferredSyncWidgetPageItems.add(data); 1303 return; 1304 } 1305 try { 1306 int page = data.page; 1307 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1308 1309 ArrayList<Object> items = data.items; 1310 int count = items.size(); 1311 for (int i = 0; i < count; ++i) { 1312 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1313 if (widget != null) { 1314 Bitmap preview = data.generatedImages.get(i); 1315 widget.applyPreview(new FastBitmapDrawable(preview), i); 1316 } 1317 } 1318 1319 layout.createHardwareLayer(); 1320 invalidate(); 1321 1322 // Update all thread priorities 1323 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1324 while (iter.hasNext()) { 1325 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1326 int pageIndex = task.page; 1327 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1328 } 1329 } finally { 1330 data.cleanup(false); 1331 } 1332 } 1333 1334 @Override 1335 public void syncPages() { 1336 removeAllViews(); 1337 cancelAllTasks(); 1338 1339 Context context = getContext(); 1340 for (int j = 0; j < mNumWidgetPages; ++j) { 1341 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1342 mWidgetCountY); 1343 setupPage(layout); 1344 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1345 LayoutParams.MATCH_PARENT)); 1346 } 1347 1348 for (int i = 0; i < mNumAppsPages; ++i) { 1349 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1350 setupPage(layout); 1351 addView(layout); 1352 } 1353 } 1354 1355 @Override 1356 public void syncPageItems(int page, boolean immediate) { 1357 if (page < mNumAppsPages) { 1358 syncAppsPageItems(page, immediate); 1359 } else { 1360 syncWidgetPageItems(page, immediate); 1361 } 1362 } 1363 1364 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1365 // it is in the z-order. This is important to insure touch events are handled correctly. 1366 View getPageAt(int index) { 1367 return getChildAt(indexToPage(index)); 1368 } 1369 1370 @Override 1371 protected int indexToPage(int index) { 1372 return getChildCount() - index - 1; 1373 } 1374 1375 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1376 @Override 1377 protected void screenScrolled(int screenCenter) { 1378 super.screenScrolled(screenCenter); 1379 1380 for (int i = 0; i < getChildCount(); i++) { 1381 View v = getPageAt(i); 1382 if (v != null) { 1383 float scrollProgress = getScrollProgress(screenCenter, v, i); 1384 1385 float interpolatedProgress = 1386 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1387 float scale = (1 - interpolatedProgress) + 1388 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1389 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1390 1391 float alpha; 1392 1393 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1394 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1395 1 - Math.abs(scrollProgress)) : 1.0f; 1396 } else { 1397 // On large screens we need to fade the page as it nears its leftmost position 1398 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1399 } 1400 1401 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1402 int pageWidth = v.getMeasuredWidth(); 1403 int pageHeight = v.getMeasuredHeight(); 1404 1405 if (PERFORM_OVERSCROLL_ROTATION) { 1406 if (i == 0 && scrollProgress < 0) { 1407 // Overscroll to the left 1408 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1409 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1410 scale = 1.0f; 1411 alpha = 1.0f; 1412 // On the first page, we don't want the page to have any lateral motion 1413 translationX = 0; 1414 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1415 // Overscroll to the right 1416 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1417 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1418 scale = 1.0f; 1419 alpha = 1.0f; 1420 // On the last page, we don't want the page to have any lateral motion. 1421 translationX = 0; 1422 } else { 1423 v.setPivotY(pageHeight / 2.0f); 1424 v.setPivotX(pageWidth / 2.0f); 1425 v.setRotationY(0f); 1426 } 1427 } 1428 1429 v.setTranslationX(translationX); 1430 v.setScaleX(scale); 1431 v.setScaleY(scale); 1432 v.setAlpha(alpha); 1433 1434 // If the view has 0 alpha, we set it to be invisible so as to prevent 1435 // it from accepting touches 1436 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1437 v.setVisibility(INVISIBLE); 1438 } else if (v.getVisibility() != VISIBLE) { 1439 v.setVisibility(VISIBLE); 1440 } 1441 } 1442 } 1443 } 1444 1445 protected void overScroll(float amount) { 1446 acceleratedOverScroll(amount); 1447 } 1448 1449 /** 1450 * Used by the parent to get the content width to set the tab bar to 1451 * @return 1452 */ 1453 public int getPageContentWidth() { 1454 return mContentWidth; 1455 } 1456 1457 @Override 1458 protected void onPageEndMoving() { 1459 super.onPageEndMoving(); 1460 1461 // We reset the save index when we change pages so that it will be recalculated on next 1462 // rotation 1463 mSaveInstanceStateItemIndex = -1; 1464 } 1465 1466 /* 1467 * AllAppsView implementation 1468 */ 1469 @Override 1470 public void setup(Launcher launcher, DragController dragController) { 1471 mLauncher = launcher; 1472 mDragController = dragController; 1473 } 1474 @Override 1475 public void zoom(float zoom, boolean animate) { 1476 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1477 } 1478 @Override 1479 public boolean isVisible() { 1480 return (getVisibility() == VISIBLE); 1481 } 1482 @Override 1483 public boolean isAnimating() { 1484 return false; 1485 } 1486 @Override 1487 public void setApps(ArrayList<ApplicationInfo> list) { 1488 mApps = list; 1489 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1490 updatePageCounts(); 1491 1492 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1493 // request a layout to do this test and invalidate the page data when ready. 1494 if (testDataReady()) requestLayout(); 1495 } 1496 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1497 // We add it in place, in alphabetical order 1498 int count = list.size(); 1499 for (int i = 0; i < count; ++i) { 1500 ApplicationInfo info = list.get(i); 1501 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1502 if (index < 0) { 1503 mApps.add(-(index + 1), info); 1504 } 1505 } 1506 } 1507 @Override 1508 public void addApps(ArrayList<ApplicationInfo> list) { 1509 addAppsWithoutInvalidate(list); 1510 updatePageCounts(); 1511 invalidatePageData(); 1512 } 1513 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1514 ComponentName removeComponent = item.intent.getComponent(); 1515 int length = list.size(); 1516 for (int i = 0; i < length; ++i) { 1517 ApplicationInfo info = list.get(i); 1518 if (info.intent.getComponent().equals(removeComponent)) { 1519 return i; 1520 } 1521 } 1522 return -1; 1523 } 1524 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1525 // loop through all the apps and remove apps that have the same component 1526 int length = list.size(); 1527 for (int i = 0; i < length; ++i) { 1528 ApplicationInfo info = list.get(i); 1529 int removeIndex = findAppByComponent(mApps, info); 1530 if (removeIndex > -1) { 1531 mApps.remove(removeIndex); 1532 } 1533 } 1534 } 1535 @Override 1536 public void removeApps(ArrayList<ApplicationInfo> list) { 1537 removeAppsWithoutInvalidate(list); 1538 updatePageCounts(); 1539 invalidatePageData(); 1540 } 1541 @Override 1542 public void updateApps(ArrayList<ApplicationInfo> list) { 1543 // We remove and re-add the updated applications list because it's properties may have 1544 // changed (ie. the title), and this will ensure that the items will be in their proper 1545 // place in the list. 1546 removeAppsWithoutInvalidate(list); 1547 addAppsWithoutInvalidate(list); 1548 updatePageCounts(); 1549 1550 invalidatePageData(); 1551 } 1552 1553 @Override 1554 public void reset() { 1555 // If we have reset, then we should not continue to restore the previous state 1556 mSaveInstanceStateItemIndex = -1; 1557 1558 AppsCustomizeTabHost tabHost = getTabHost(); 1559 String tag = tabHost.getCurrentTabTag(); 1560 if (tag != null) { 1561 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1562 tabHost.setCurrentTabFromContent(ContentType.Applications); 1563 } 1564 } 1565 1566 if (mCurrentPage != 0) { 1567 invalidatePageData(0); 1568 } 1569 } 1570 1571 private AppsCustomizeTabHost getTabHost() { 1572 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1573 } 1574 1575 @Override 1576 public void dumpState() { 1577 // TODO: Dump information related to current list of Applications, Widgets, etc. 1578 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1579 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1580 } 1581 1582 private void dumpAppWidgetProviderInfoList(String tag, String label, 1583 ArrayList<Object> list) { 1584 Log.d(tag, label + " size=" + list.size()); 1585 for (Object i: list) { 1586 if (i instanceof AppWidgetProviderInfo) { 1587 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1588 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1589 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1590 + " initialLayout=" + info.initialLayout 1591 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1592 } else if (i instanceof ResolveInfo) { 1593 ResolveInfo info = (ResolveInfo) i; 1594 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1595 + info.icon); 1596 } 1597 } 1598 } 1599 1600 @Override 1601 public void surrender() { 1602 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1603 // should stop this now. 1604 1605 // Stop all background tasks 1606 cancelAllTasks(); 1607 } 1608 1609 @Override 1610 public void iconPressed(PagedViewIcon icon) { 1611 // Reset the previously pressed icon and store a reference to the pressed icon so that 1612 // we can reset it on return to Launcher (in Launcher.onResume()) 1613 if (mPressedIcon != null) { 1614 mPressedIcon.resetDrawableState(); 1615 } 1616 mPressedIcon = icon; 1617 } 1618 1619 public void resetDrawableState() { 1620 if (mPressedIcon != null) { 1621 mPressedIcon.resetDrawableState(); 1622 mPressedIcon = null; 1623 } 1624 } 1625 1626 /* 1627 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1628 * widget previews in the background with the AsyncTasks. 1629 */ 1630 final static int sLookBehindPageCount = 2; 1631 final static int sLookAheadPageCount = 2; 1632 protected int getAssociatedLowerPageBound(int page) { 1633 final int count = getChildCount(); 1634 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1635 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1636 return windowMinIndex; 1637 } 1638 protected int getAssociatedUpperPageBound(int page) { 1639 final int count = getChildCount(); 1640 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1641 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1642 count - 1); 1643 return windowMaxIndex; 1644 } 1645 1646 @Override 1647 protected String getCurrentPageDescription() { 1648 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1649 int stringId = R.string.default_scroll_format; 1650 int count = 0; 1651 1652 if (page < mNumAppsPages) { 1653 stringId = R.string.apps_customize_apps_scroll_format; 1654 count = mNumAppsPages; 1655 } else { 1656 page -= mNumAppsPages; 1657 stringId = R.string.apps_customize_widgets_scroll_format; 1658 count = mNumWidgetPages; 1659 } 1660 1661 return String.format(mContext.getString(stringId), page + 1, count); 1662 } 1663} 1664