AppsCustomizePagedView.java revision 4773408efd8bd3b33c97d9512ac8b0742f319c70
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 // Ensure that all widgets we show can be added on a workspace of this size 484 int[] spanXY = mLauncher.getSpanForWidget(widget); 485 int[] minSpanXY = mLauncher.getMinSpanForWidget(widget); 486 int minSpanX = Math.min(spanXY[0], minSpanXY[0]); 487 int minSpanY = Math.min(spanXY[1], minSpanXY[1]); 488 if (minSpanX <= LauncherModel.getCellCountX() && 489 minSpanY <= LauncherModel.getCellCountY()) { 490 mWidgets.add(widget); 491 } 492 } else { 493 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 494 widget.minWidth + ", " + widget.minHeight + ")"); 495 } 496 } 497 mWidgets.addAll(shortcuts); 498 Collections.sort(mWidgets, 499 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 500 updatePageCounts(); 501 502 if (wasEmpty) { 503 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 504 // a layout to do this test and invalidate the page data when ready. 505 if (testDataReady()) requestLayout(); 506 } else { 507 cancelAllTasks(); 508 invalidatePageData(); 509 } 510 } 511 512 @Override 513 public void onClick(View v) { 514 // When we have exited all apps or are in transition, disregard clicks 515 if (!mLauncher.isAllAppsCustomizeOpen() || 516 mLauncher.getWorkspace().isSwitchingState()) return; 517 518 if (v instanceof PagedViewIcon) { 519 // Animate some feedback to the click 520 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 521 522 // Lock the drawable state to pressed until we return to Launcher 523 if (mPressedIcon != null) { 524 mPressedIcon.lockDrawableState(); 525 } 526 527 // NOTE: we need to re-enable the wallpaper visibility if we want correct transitions 528 // between items that are launched from the workspace and all apps. It will be disabled 529 // correctly the next time the window is visible in AppsCustomizeTabHost. 530 mLauncher.updateWallpaperVisibility(true); 531 mLauncher.startActivitySafely(v, appInfo.intent, appInfo); 532 533 } else if (v instanceof PagedViewWidget) { 534 // Let the user know that they have to long press to add a widget 535 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 536 Toast.LENGTH_SHORT).show(); 537 538 // Create a little animation to show that the widget can move 539 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 540 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 541 AnimatorSet bounce = new AnimatorSet(); 542 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 543 tyuAnim.setDuration(125); 544 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 545 tydAnim.setDuration(100); 546 bounce.play(tyuAnim).before(tydAnim); 547 bounce.setInterpolator(new AccelerateInterpolator()); 548 bounce.start(); 549 } 550 } 551 552 public boolean onKey(View v, int keyCode, KeyEvent event) { 553 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 554 } 555 556 /* 557 * PagedViewWithDraggableItems implementation 558 */ 559 @Override 560 protected void determineDraggingStart(android.view.MotionEvent ev) { 561 // Disable dragging by pulling an app down for now. 562 } 563 564 private void beginDraggingApplication(View v) { 565 mLauncher.getWorkspace().onDragStartedWithItem(v); 566 mLauncher.getWorkspace().beginDragShared(v, this); 567 } 568 569 private void loadWidgetInBackground(final PendingAddWidgetInfo info) { 570 final AppWidgetProviderInfo pInfo = info.info; 571 if (pInfo.configure != null) { 572 return; 573 } 574 575 mBindWidgetRunnable = new Runnable() { 576 @Override 577 public void run() { 578 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 579 if (AppWidgetManager.getInstance(mLauncher) 580 .bindAppWidgetIdIfAllowed(mWidgetLoadingId, info.componentName)) { 581 mWidgetCleanupState = WIDGET_BOUND; 582 } 583 } 584 }; 585 post(mBindWidgetRunnable); 586 587 mInflateWidgetRunnable = new Runnable() { 588 @Override 589 public void run() { 590 AppWidgetHostView hostView = mLauncher. 591 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 592 info.boundWidget = hostView; 593 mWidgetCleanupState = WIDGET_INFLATED; 594 hostView.setVisibility(INVISIBLE); 595 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 596 info.spanY, info, false); 597 598 // We want the first widget layout to be the correct size. This will be important 599 // for width size reporting to the AppWidgetManager. 600 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 601 unScaledSize[1]); 602 lp.x = lp.y = 0; 603 lp.customPosition = true; 604 hostView.setLayoutParams(lp); 605 mLauncher.getDragLayer().addView(hostView); 606 } 607 }; 608 post(mInflateWidgetRunnable); 609 } 610 611 @Override 612 public void onShortPress(View v) { 613 // We are anticipating a long press, and we use this time to load bind and instantiate 614 // the widget. This will need to be cleaned up if it turns out no long press occurs. 615 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 616 loadWidgetInBackground(mCreateWidgetInfo); 617 } 618 619 private void cleanupWidgetPreloading() { 620 PendingAddWidgetInfo info = mCreateWidgetInfo; 621 mCreateWidgetInfo = null; 622 if (mWidgetCleanupState >= 0 && mWidgetLoadingId != -1) { 623 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 624 } 625 if (mWidgetCleanupState == WIDGET_BOUND) { 626 removeCallbacks(mInflateWidgetRunnable); 627 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 628 AppWidgetHostView widget = info.boundWidget; 629 int widgetId = widget.getAppWidgetId(); 630 mLauncher.getAppWidgetHost().deleteAppWidgetId(widgetId); 631 mLauncher.getDragLayer().removeView(widget); 632 } 633 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 634 mWidgetLoadingId = -1; 635 } 636 637 @Override 638 public void cleanUpShortPress(View v) { 639 if (!mDraggingWidget) { 640 cleanupWidgetPreloading(); 641 } 642 } 643 644 private void beginDraggingWidget(View v) { 645 mDraggingWidget = true; 646 // Get the widget preview as the drag representation 647 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 648 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 649 650 // Compose the drag image 651 Bitmap preview; 652 Bitmap outline; 653 float scale = 1f; 654 if (createItemInfo instanceof PendingAddWidgetInfo) { 655 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 656 createItemInfo = createWidgetInfo; 657 int spanX = createItemInfo.spanX; 658 int spanY = createItemInfo.spanY; 659 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 660 createWidgetInfo, true); 661 662 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 663 float minScale = 1.25f; 664 int minWidth, minHeight; 665 minWidth = Math.max((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 666 minHeight = Math.max((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 667 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 668 createWidgetInfo.icon, spanX, spanY, minWidth, minHeight); 669 670 // Determine the image view drawable scale relative to the preview 671 float[] mv = new float[9]; 672 Matrix m = new Matrix(); 673 m.setRectToRect( 674 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 675 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 676 (float) previewDrawable.getIntrinsicHeight()), 677 Matrix.ScaleToFit.START); 678 m.getValues(mv); 679 scale = (float) mv[0]; 680 } else { 681 // Workaround for the fact that we don't keep the original ResolveInfo associated with 682 // the shortcut around. To get the icon, we just render the preview image (which has 683 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 684 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 685 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 686 Drawable d = image.getDrawable(); 687 mCanvas.setBitmap(preview); 688 d.draw(mCanvas); 689 mCanvas.setBitmap(null); 690 createItemInfo.spanX = createItemInfo.spanY = 1; 691 } 692 693 // We use a custom alpha clip table for the default widget previews 694 Paint alphaClipPaint = null; 695 if (createItemInfo instanceof PendingAddWidgetInfo) { 696 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 697 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 698 alphaClipPaint = new Paint(); 699 alphaClipPaint.setMaskFilter(alphaClipTable); 700 } 701 } 702 703 // Save the preview for the outline generation, then dim the preview 704 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 705 false); 706 707 // Start the drag 708 alphaClipPaint = null; 709 mLauncher.lockScreenOrientationOnLargeUI(); 710 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 711 mDragController.startDrag(image, preview, this, createItemInfo, 712 DragController.DRAG_ACTION_COPY, null, scale); 713 outline.recycle(); 714 preview.recycle(); 715 } 716 717 @Override 718 protected boolean beginDragging(final View v) { 719 if (!super.beginDragging(v)) return false; 720 721 if (v instanceof PagedViewIcon) { 722 beginDraggingApplication(v); 723 } else if (v instanceof PagedViewWidget) { 724 beginDraggingWidget(v); 725 } 726 727 // We delay entering spring-loaded mode slightly to make sure the UI 728 // thready is free of any work. 729 postDelayed(new Runnable() { 730 @Override 731 public void run() { 732 // We don't enter spring-loaded mode if the drag has been cancelled 733 if (mLauncher.getDragController().isDragging()) { 734 // Dismiss the cling 735 mLauncher.dismissAllAppsCling(null); 736 737 // Reset the alpha on the dragged icon before we drag 738 resetDrawableState(); 739 740 // Go into spring loaded mode (must happen before we startDrag()) 741 mLauncher.enterSpringLoadedDragMode(); 742 } 743 } 744 }, 150); 745 746 return true; 747 } 748 749 /** 750 * Clean up after dragging. 751 * 752 * @param target where the item was dragged to (can be null if the item was flung) 753 */ 754 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 755 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 756 !(target instanceof DeleteDropTarget))) { 757 // Exit spring loaded mode if we have not successfully dropped or have not handled the 758 // drop in Workspace 759 mLauncher.exitSpringLoadedDragMode(); 760 } 761 mLauncher.unlockScreenOrientationOnLargeUI(); 762 } 763 764 @Override 765 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 766 mInTransition = true; 767 if (toWorkspace) { 768 cancelAllTasks(); 769 } 770 } 771 772 @Override 773 public View getContent() { 774 return null; 775 } 776 777 @Override 778 public void onLauncherTransitionStep(Launcher l, float t) { 779 } 780 781 @Override 782 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 783 mInTransition = false; 784 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 785 onSyncWidgetPageItems(d); 786 } 787 mDeferredSyncWidgetPageItems.clear(); 788 } 789 790 @Override 791 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 792 boolean success) { 793 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 794 if (isFlingToDelete) return; 795 796 endDragging(target, false, success); 797 798 // Display an error message if the drag failed due to there not being enough space on the 799 // target layout we were dropping on. 800 if (!success) { 801 boolean showOutOfSpaceMessage = false; 802 if (target instanceof Workspace) { 803 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 804 Workspace workspace = (Workspace) target; 805 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 806 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 807 if (layout != null) { 808 layout.calculateSpans(itemInfo); 809 showOutOfSpaceMessage = 810 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 811 } 812 } 813 if (showOutOfSpaceMessage) { 814 mLauncher.showOutOfSpaceMessage(false); 815 } 816 817 d.deferDragViewCleanupPostAnimation = false; 818 cleanupWidgetPreloading(); 819 } 820 mDraggingWidget = false; 821 } 822 823 @Override 824 public void onFlingToDeleteCompleted() { 825 // We just dismiss the drag when we fling, so cleanup here 826 endDragging(null, true, true); 827 cleanupWidgetPreloading(); 828 mDraggingWidget = false; 829 } 830 831 @Override 832 public boolean supportsFlingToDelete() { 833 return true; 834 } 835 836 @Override 837 protected void onDetachedFromWindow() { 838 super.onDetachedFromWindow(); 839 cancelAllTasks(); 840 } 841 842 public void clearAllWidgetPages() { 843 cancelAllTasks(); 844 int count = getChildCount(); 845 for (int i = 0; i < count; i++) { 846 View v = getPageAt(i); 847 if (v instanceof PagedViewGridLayout) { 848 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 849 mDirtyPageContent.set(i, true); 850 } 851 } 852 } 853 854 private void cancelAllTasks() { 855 // Clean up all the async tasks 856 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 857 while (iter.hasNext()) { 858 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 859 task.cancel(false); 860 iter.remove(); 861 mDirtyPageContent.set(task.page, true); 862 } 863 mDeferredSyncWidgetPageItems.clear(); 864 } 865 866 public void setContentType(ContentType type) { 867 if (type == ContentType.Widgets) { 868 invalidatePageData(mNumAppsPages, true); 869 } else if (type == ContentType.Applications) { 870 invalidatePageData(0, true); 871 } 872 } 873 874 protected void snapToPage(int whichPage, int delta, int duration) { 875 super.snapToPage(whichPage, delta, duration); 876 updateCurrentTab(whichPage); 877 878 // Update the thread priorities given the direction lookahead 879 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 880 while (iter.hasNext()) { 881 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 882 int pageIndex = task.page; 883 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 884 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 885 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 886 } else { 887 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 888 } 889 } 890 } 891 892 private void updateCurrentTab(int currentPage) { 893 AppsCustomizeTabHost tabHost = getTabHost(); 894 if (tabHost != null) { 895 String tag = tabHost.getCurrentTabTag(); 896 if (tag != null) { 897 if (currentPage >= mNumAppsPages && 898 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 899 tabHost.setCurrentTabFromContent(ContentType.Widgets); 900 } else if (currentPage < mNumAppsPages && 901 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 902 tabHost.setCurrentTabFromContent(ContentType.Applications); 903 } 904 } 905 } 906 } 907 908 /* 909 * Apps PagedView implementation 910 */ 911 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 912 int childCount = layout.getChildCount(); 913 for (int i = 0; i < childCount; ++i) { 914 layout.getChildAt(i).setVisibility(visibility); 915 } 916 } 917 private void setupPage(PagedViewCellLayout layout) { 918 layout.setCellCount(mCellCountX, mCellCountY); 919 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 920 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 921 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 922 923 // Note: We force a measure here to get around the fact that when we do layout calculations 924 // immediately after syncing, we don't have a proper width. That said, we already know the 925 // expected page width, so we can actually optimize by hiding all the TextView-based 926 // children that are expensive to measure, and let that happen naturally later. 927 setVisibilityOnChildren(layout, View.GONE); 928 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 929 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 930 layout.setMinimumWidth(getPageContentWidth()); 931 layout.measure(widthSpec, heightSpec); 932 setVisibilityOnChildren(layout, View.VISIBLE); 933 } 934 935 public void syncAppsPageItems(int page, boolean immediate) { 936 // ensure that we have the right number of items on the pages 937 int numCells = mCellCountX * mCellCountY; 938 int startIndex = page * numCells; 939 int endIndex = Math.min(startIndex + numCells, mApps.size()); 940 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 941 942 layout.removeAllViewsOnPage(); 943 ArrayList<Object> items = new ArrayList<Object>(); 944 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 945 for (int i = startIndex; i < endIndex; ++i) { 946 ApplicationInfo info = mApps.get(i); 947 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 948 R.layout.apps_customize_application, layout, false); 949 icon.applyFromApplicationInfo(info, true, this); 950 icon.setOnClickListener(this); 951 icon.setOnLongClickListener(this); 952 icon.setOnTouchListener(this); 953 icon.setOnKeyListener(this); 954 955 int index = i - startIndex; 956 int x = index % mCellCountX; 957 int y = index / mCellCountX; 958 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 959 960 items.add(info); 961 images.add(info.iconBitmap); 962 } 963 964 layout.createHardwareLayers(); 965 } 966 967 /** 968 * A helper to return the priority for loading of the specified widget page. 969 */ 970 private int getWidgetPageLoadPriority(int page) { 971 // If we are snapping to another page, use that index as the target page index 972 int toPage = mCurrentPage; 973 if (mNextPage > -1) { 974 toPage = mNextPage; 975 } 976 977 // We use the distance from the target page as an initial guess of priority, but if there 978 // are no pages of higher priority than the page specified, then bump up the priority of 979 // the specified page. 980 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 981 int minPageDiff = Integer.MAX_VALUE; 982 while (iter.hasNext()) { 983 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 984 minPageDiff = Math.abs(task.page - toPage); 985 } 986 987 int rawPageDiff = Math.abs(page - toPage); 988 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 989 } 990 /** 991 * Return the appropriate thread priority for loading for a given page (we give the current 992 * page much higher priority) 993 */ 994 private int getThreadPriorityForPage(int page) { 995 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 996 int pageDiff = getWidgetPageLoadPriority(page); 997 if (pageDiff <= 0) { 998 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 999 } else if (pageDiff <= 1) { 1000 return Process.THREAD_PRIORITY_LOWEST; 1001 } else { 1002 return Process.THREAD_PRIORITY_LOWEST; 1003 } 1004 } 1005 private int getSleepForPage(int page) { 1006 int pageDiff = getWidgetPageLoadPriority(page); 1007 return Math.max(0, pageDiff * sPageSleepDelay); 1008 } 1009 /** 1010 * Creates and executes a new AsyncTask to load a page of widget previews. 1011 */ 1012 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1013 int cellWidth, int cellHeight, int cellCountX) { 1014 1015 // Prune all tasks that are no longer needed 1016 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1017 while (iter.hasNext()) { 1018 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1019 int taskPage = task.page; 1020 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1021 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1022 task.cancel(false); 1023 iter.remove(); 1024 } else { 1025 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1026 } 1027 } 1028 1029 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1030 final int sleepMs = getSleepForPage(page); 1031 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1032 new AsyncTaskCallback() { 1033 @Override 1034 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1035 try { 1036 try { 1037 Thread.sleep(sleepMs); 1038 } catch (Exception e) {} 1039 loadWidgetPreviewsInBackground(task, data); 1040 } finally { 1041 if (task.isCancelled()) { 1042 data.cleanup(true); 1043 } 1044 } 1045 } 1046 }, 1047 new AsyncTaskCallback() { 1048 @Override 1049 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1050 mRunningTasks.remove(task); 1051 if (task.isCancelled()) return; 1052 // do cleanup inside onSyncWidgetPageItems 1053 onSyncWidgetPageItems(data); 1054 } 1055 }); 1056 1057 // Ensure that the task is appropriately prioritized and runs in parallel 1058 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1059 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1060 t.setThreadPriority(getThreadPriorityForPage(page)); 1061 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1062 mRunningTasks.add(t); 1063 } 1064 1065 /* 1066 * Widgets PagedView implementation 1067 */ 1068 private void setupPage(PagedViewGridLayout layout) { 1069 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1070 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1071 1072 // Note: We force a measure here to get around the fact that when we do layout calculations 1073 // immediately after syncing, we don't have a proper width. 1074 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1075 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1076 layout.setMinimumWidth(getPageContentWidth()); 1077 layout.measure(widthSpec, heightSpec); 1078 } 1079 1080 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1081 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 1082 } 1083 1084 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1085 float scale, int multiplyColor) { 1086 if (bitmap != null) { 1087 Canvas c = new Canvas(bitmap); 1088 c.scale(scale, scale); 1089 Rect oldBounds = d.copyBounds(); 1090 d.setBounds(x, y, x + w, y + h); 1091 d.draw(c); 1092 d.setBounds(oldBounds); // Restore the bounds 1093 c.setBitmap(null); 1094 } 1095 } 1096 private Bitmap getShortcutPreview(ResolveInfo info) { 1097 // Render the background 1098 int offset = 0; 1099 int bitmapSize = mAppIconSize; 1100 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1101 1102 // Render the icon 1103 Drawable icon = mIconCache.getFullResIcon(info); 1104 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1105 return preview; 1106 } 1107 1108 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1109 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1110 // Load the preview image if possible 1111 String packageName = provider.getPackageName(); 1112 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1113 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1114 1115 Drawable drawable = null; 1116 if (previewImage != 0) { 1117 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1118 if (drawable == null) { 1119 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1120 Integer.toHexString(previewImage) + " for provider: " + provider); 1121 } 1122 } 1123 1124 int bitmapWidth; 1125 int bitmapHeight; 1126 boolean widgetPreviewExists = (drawable != null); 1127 if (widgetPreviewExists) { 1128 bitmapWidth = drawable.getIntrinsicWidth(); 1129 bitmapHeight = drawable.getIntrinsicHeight(); 1130 } else { 1131 if (cellHSpan < 1) cellHSpan = 1; 1132 if (cellVSpan < 1) cellVSpan = 1; 1133 // Determine the size of the bitmap for the preview image we will generate 1134 // TODO: This actually uses the apps customize cell layout params, where as we make want 1135 // the Workspace params for more accuracy. 1136 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1137 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1138 if (cellHSpan == cellVSpan) { 1139 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1140 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1141 if (cellHSpan <= 1) { 1142 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1143 } else { 1144 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1145 } 1146 } 1147 } 1148 1149 float scale = 1f; 1150 if (bitmapWidth > maxWidth) { 1151 scale = maxWidth / (float) bitmapWidth; 1152 } 1153 if (bitmapHeight * scale > maxHeight) { 1154 scale = maxHeight / (float) bitmapHeight; 1155 } 1156 if (scale != 1f) { 1157 bitmapWidth = (int) (scale * bitmapWidth); 1158 bitmapHeight = (int) (scale * bitmapHeight); 1159 } 1160 1161 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1162 1163 if (widgetPreviewExists) { 1164 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1165 } else { 1166 // Generate a preview image if we couldn't load one 1167 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1168 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1169 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1170 if (cellHSpan != 1 || cellVSpan != 1) { 1171 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1172 bitmapHeight); 1173 } 1174 1175 // Draw the icon in the top left corner 1176 try { 1177 Drawable icon = null; 1178 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1179 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1180 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1181 Resources resources = mLauncher.getResources(); 1182 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1183 1184 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1185 (int) (mAppIconSize * iconScale), 1186 (int) (mAppIconSize * iconScale)); 1187 } catch (Resources.NotFoundException e) {} 1188 } 1189 return preview; 1190 } 1191 1192 public void syncWidgetPageItems(final int page, final boolean immediate) { 1193 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1194 1195 // Calculate the dimensions of each cell we are giving to each widget 1196 final ArrayList<Object> items = new ArrayList<Object>(); 1197 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1198 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1199 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1200 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1201 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1202 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1203 1204 // Prepare the set of widgets to load previews for in the background 1205 int offset = (page - mNumAppsPages) * numItemsPerPage; 1206 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1207 items.add(mWidgets.get(i)); 1208 } 1209 1210 // Prepopulate the pages with the other widget info, and fill in the previews later 1211 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1212 layout.setColumnCount(layout.getCellCountX()); 1213 for (int i = 0; i < items.size(); ++i) { 1214 Object rawInfo = items.get(i); 1215 PendingAddItemInfo createItemInfo = null; 1216 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1217 R.layout.apps_customize_widget, layout, false); 1218 if (rawInfo instanceof AppWidgetProviderInfo) { 1219 // Fill in the widget information 1220 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1221 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1222 1223 // Determine the widget spans and min resize spans. 1224 int[] spanXY = mLauncher.getSpanForWidget(info); 1225 createItemInfo.spanX = spanXY[0]; 1226 createItemInfo.spanY = spanXY[1]; 1227 int[] minSpanXY = mLauncher.getMinSpanForWidget(info); 1228 createItemInfo.minSpanX = minSpanXY[0]; 1229 createItemInfo.minSpanY = minSpanXY[1]; 1230 1231 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1232 widget.setTag(createItemInfo); 1233 widget.setShortPressListener(this); 1234 } else if (rawInfo instanceof ResolveInfo) { 1235 // Fill in the shortcuts information 1236 ResolveInfo info = (ResolveInfo) rawInfo; 1237 createItemInfo = new PendingAddItemInfo(); 1238 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1239 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1240 info.activityInfo.name); 1241 widget.applyFromResolveInfo(mPackageManager, info); 1242 widget.setTag(createItemInfo); 1243 } 1244 widget.setOnClickListener(this); 1245 widget.setOnLongClickListener(this); 1246 widget.setOnTouchListener(this); 1247 widget.setOnKeyListener(this); 1248 1249 // Layout each widget 1250 int ix = i % mWidgetCountX; 1251 int iy = i / mWidgetCountX; 1252 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1253 GridLayout.spec(iy, GridLayout.LEFT), 1254 GridLayout.spec(ix, GridLayout.TOP)); 1255 lp.width = cellWidth; 1256 lp.height = cellHeight; 1257 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1258 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1259 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1260 layout.addView(widget, lp); 1261 } 1262 1263 // wait until a call on onLayout to start loading, because 1264 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1265 // TODO: can we do a measure/layout immediately? 1266 layout.setOnLayoutListener(new Runnable() { 1267 public void run() { 1268 // Load the widget previews 1269 int maxPreviewWidth = cellWidth; 1270 int maxPreviewHeight = cellHeight; 1271 if (layout.getChildCount() > 0) { 1272 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1273 int[] maxSize = w.getPreviewSize(); 1274 maxPreviewWidth = maxSize[0]; 1275 maxPreviewHeight = maxSize[1]; 1276 } 1277 if (immediate) { 1278 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1279 maxPreviewWidth, maxPreviewHeight, null, null); 1280 loadWidgetPreviewsInBackground(null, data); 1281 onSyncWidgetPageItems(data); 1282 } else { 1283 prepareLoadWidgetPreviewsTask(page, items, 1284 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1285 } 1286 } 1287 }); 1288 } 1289 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1290 AsyncTaskPageData data) { 1291 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1292 // previews synchronously 1293 if (task != null) { 1294 // Ensure that this task starts running at the correct priority 1295 task.syncThreadPriority(); 1296 } 1297 1298 // Load each of the widget/shortcut previews 1299 ArrayList<Object> items = data.items; 1300 ArrayList<Bitmap> images = data.generatedImages; 1301 int count = items.size(); 1302 for (int i = 0; i < count; ++i) { 1303 if (task != null) { 1304 // Ensure we haven't been cancelled yet 1305 if (task.isCancelled()) break; 1306 // Before work on each item, ensure that this task is running at the correct 1307 // priority 1308 task.syncThreadPriority(); 1309 } 1310 1311 Object rawInfo = items.get(i); 1312 if (rawInfo instanceof AppWidgetProviderInfo) { 1313 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1314 int[] cellSpans = mLauncher.getSpanForWidget(info); 1315 1316 int maxWidth = Math.min(data.maxImageWidth, 1317 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1318 int maxHeight = Math.min(data.maxImageHeight, 1319 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1320 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1321 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1322 images.add(b); 1323 } else if (rawInfo instanceof ResolveInfo) { 1324 // Fill in the shortcuts information 1325 ResolveInfo info = (ResolveInfo) rawInfo; 1326 images.add(getShortcutPreview(info)); 1327 } 1328 } 1329 } 1330 1331 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1332 if (mInTransition) { 1333 mDeferredSyncWidgetPageItems.add(data); 1334 return; 1335 } 1336 try { 1337 int page = data.page; 1338 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1339 1340 ArrayList<Object> items = data.items; 1341 int count = items.size(); 1342 for (int i = 0; i < count; ++i) { 1343 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1344 if (widget != null) { 1345 Bitmap preview = data.generatedImages.get(i); 1346 widget.applyPreview(new FastBitmapDrawable(preview), i); 1347 } 1348 } 1349 1350 layout.createHardwareLayer(); 1351 invalidate(); 1352 1353 // Update all thread priorities 1354 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1355 while (iter.hasNext()) { 1356 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1357 int pageIndex = task.page; 1358 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1359 } 1360 } finally { 1361 data.cleanup(false); 1362 } 1363 } 1364 1365 @Override 1366 public void syncPages() { 1367 removeAllViews(); 1368 cancelAllTasks(); 1369 1370 Context context = getContext(); 1371 for (int j = 0; j < mNumWidgetPages; ++j) { 1372 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1373 mWidgetCountY); 1374 setupPage(layout); 1375 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1376 LayoutParams.MATCH_PARENT)); 1377 } 1378 1379 for (int i = 0; i < mNumAppsPages; ++i) { 1380 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1381 setupPage(layout); 1382 addView(layout); 1383 } 1384 } 1385 1386 @Override 1387 public void syncPageItems(int page, boolean immediate) { 1388 if (page < mNumAppsPages) { 1389 syncAppsPageItems(page, immediate); 1390 } else { 1391 syncWidgetPageItems(page, immediate); 1392 } 1393 } 1394 1395 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1396 // it is in the z-order. This is important to insure touch events are handled correctly. 1397 View getPageAt(int index) { 1398 return getChildAt(indexToPage(index)); 1399 } 1400 1401 @Override 1402 protected int indexToPage(int index) { 1403 return getChildCount() - index - 1; 1404 } 1405 1406 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1407 @Override 1408 protected void screenScrolled(int screenCenter) { 1409 super.screenScrolled(screenCenter); 1410 1411 for (int i = 0; i < getChildCount(); i++) { 1412 View v = getPageAt(i); 1413 if (v != null) { 1414 float scrollProgress = getScrollProgress(screenCenter, v, i); 1415 1416 float interpolatedProgress = 1417 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1418 float scale = (1 - interpolatedProgress) + 1419 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1420 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1421 1422 float alpha; 1423 1424 if (scrollProgress < 0) { 1425 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1426 1 - Math.abs(scrollProgress)) : 1.0f; 1427 } else { 1428 // On large screens we need to fade the page as it nears its leftmost position 1429 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1430 } 1431 1432 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1433 int pageWidth = v.getMeasuredWidth(); 1434 int pageHeight = v.getMeasuredHeight(); 1435 1436 if (PERFORM_OVERSCROLL_ROTATION) { 1437 if (i == 0 && scrollProgress < 0) { 1438 // Overscroll to the left 1439 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1440 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1441 scale = 1.0f; 1442 alpha = 1.0f; 1443 // On the first page, we don't want the page to have any lateral motion 1444 translationX = 0; 1445 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1446 // Overscroll to the right 1447 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1448 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1449 scale = 1.0f; 1450 alpha = 1.0f; 1451 // On the last page, we don't want the page to have any lateral motion. 1452 translationX = 0; 1453 } else { 1454 v.setPivotY(pageHeight / 2.0f); 1455 v.setPivotX(pageWidth / 2.0f); 1456 v.setRotationY(0f); 1457 } 1458 } 1459 1460 v.setTranslationX(translationX); 1461 v.setScaleX(scale); 1462 v.setScaleY(scale); 1463 v.setAlpha(alpha); 1464 1465 // If the view has 0 alpha, we set it to be invisible so as to prevent 1466 // it from accepting touches 1467 if (alpha == 0) { 1468 v.setVisibility(INVISIBLE); 1469 } else if (v.getVisibility() != VISIBLE) { 1470 v.setVisibility(VISIBLE); 1471 } 1472 } 1473 } 1474 } 1475 1476 protected void overScroll(float amount) { 1477 acceleratedOverScroll(amount); 1478 } 1479 1480 /** 1481 * Used by the parent to get the content width to set the tab bar to 1482 * @return 1483 */ 1484 public int getPageContentWidth() { 1485 return mContentWidth; 1486 } 1487 1488 @Override 1489 protected void onPageEndMoving() { 1490 super.onPageEndMoving(); 1491 1492 // We reset the save index when we change pages so that it will be recalculated on next 1493 // rotation 1494 mSaveInstanceStateItemIndex = -1; 1495 } 1496 1497 /* 1498 * AllAppsView implementation 1499 */ 1500 @Override 1501 public void setup(Launcher launcher, DragController dragController) { 1502 mLauncher = launcher; 1503 mDragController = dragController; 1504 } 1505 @Override 1506 public void zoom(float zoom, boolean animate) { 1507 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1508 } 1509 @Override 1510 public boolean isVisible() { 1511 return (getVisibility() == VISIBLE); 1512 } 1513 @Override 1514 public boolean isAnimating() { 1515 return false; 1516 } 1517 @Override 1518 public void setApps(ArrayList<ApplicationInfo> list) { 1519 mApps = list; 1520 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1521 updatePageCounts(); 1522 1523 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1524 // request a layout to do this test and invalidate the page data when ready. 1525 if (testDataReady()) requestLayout(); 1526 } 1527 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1528 // We add it in place, in alphabetical order 1529 int count = list.size(); 1530 for (int i = 0; i < count; ++i) { 1531 ApplicationInfo info = list.get(i); 1532 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1533 if (index < 0) { 1534 mApps.add(-(index + 1), info); 1535 } 1536 } 1537 } 1538 @Override 1539 public void addApps(ArrayList<ApplicationInfo> list) { 1540 addAppsWithoutInvalidate(list); 1541 updatePageCounts(); 1542 invalidatePageData(); 1543 } 1544 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1545 ComponentName removeComponent = item.intent.getComponent(); 1546 int length = list.size(); 1547 for (int i = 0; i < length; ++i) { 1548 ApplicationInfo info = list.get(i); 1549 if (info.intent.getComponent().equals(removeComponent)) { 1550 return i; 1551 } 1552 } 1553 return -1; 1554 } 1555 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1556 // loop through all the apps and remove apps that have the same component 1557 int length = list.size(); 1558 for (int i = 0; i < length; ++i) { 1559 ApplicationInfo info = list.get(i); 1560 int removeIndex = findAppByComponent(mApps, info); 1561 if (removeIndex > -1) { 1562 mApps.remove(removeIndex); 1563 } 1564 } 1565 } 1566 @Override 1567 public void removeApps(ArrayList<ApplicationInfo> list) { 1568 removeAppsWithoutInvalidate(list); 1569 updatePageCounts(); 1570 invalidatePageData(); 1571 } 1572 @Override 1573 public void updateApps(ArrayList<ApplicationInfo> list) { 1574 // We remove and re-add the updated applications list because it's properties may have 1575 // changed (ie. the title), and this will ensure that the items will be in their proper 1576 // place in the list. 1577 removeAppsWithoutInvalidate(list); 1578 addAppsWithoutInvalidate(list); 1579 updatePageCounts(); 1580 1581 invalidatePageData(); 1582 } 1583 1584 @Override 1585 public void reset() { 1586 // If we have reset, then we should not continue to restore the previous state 1587 mSaveInstanceStateItemIndex = -1; 1588 1589 AppsCustomizeTabHost tabHost = getTabHost(); 1590 String tag = tabHost.getCurrentTabTag(); 1591 if (tag != null) { 1592 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1593 tabHost.setCurrentTabFromContent(ContentType.Applications); 1594 } 1595 } 1596 1597 if (mCurrentPage != 0) { 1598 invalidatePageData(0); 1599 } 1600 } 1601 1602 private AppsCustomizeTabHost getTabHost() { 1603 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1604 } 1605 1606 @Override 1607 public void dumpState() { 1608 // TODO: Dump information related to current list of Applications, Widgets, etc. 1609 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1610 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1611 } 1612 1613 private void dumpAppWidgetProviderInfoList(String tag, String label, 1614 ArrayList<Object> list) { 1615 Log.d(tag, label + " size=" + list.size()); 1616 for (Object i: list) { 1617 if (i instanceof AppWidgetProviderInfo) { 1618 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1619 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1620 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1621 + " initialLayout=" + info.initialLayout 1622 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1623 } else if (i instanceof ResolveInfo) { 1624 ResolveInfo info = (ResolveInfo) i; 1625 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1626 + info.icon); 1627 } 1628 } 1629 } 1630 1631 @Override 1632 public void surrender() { 1633 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1634 // should stop this now. 1635 1636 // Stop all background tasks 1637 cancelAllTasks(); 1638 } 1639 1640 @Override 1641 public void iconPressed(PagedViewIcon icon) { 1642 // Reset the previously pressed icon and store a reference to the pressed icon so that 1643 // we can reset it on return to Launcher (in Launcher.onResume()) 1644 if (mPressedIcon != null) { 1645 mPressedIcon.resetDrawableState(); 1646 } 1647 mPressedIcon = icon; 1648 } 1649 1650 public void resetDrawableState() { 1651 if (mPressedIcon != null) { 1652 mPressedIcon.resetDrawableState(); 1653 mPressedIcon = null; 1654 } 1655 } 1656 1657 /* 1658 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1659 * widget previews in the background with the AsyncTasks. 1660 */ 1661 final static int sLookBehindPageCount = 2; 1662 final static int sLookAheadPageCount = 2; 1663 protected int getAssociatedLowerPageBound(int page) { 1664 final int count = getChildCount(); 1665 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1666 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1667 return windowMinIndex; 1668 } 1669 protected int getAssociatedUpperPageBound(int page) { 1670 final int count = getChildCount(); 1671 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1672 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1673 count - 1); 1674 return windowMaxIndex; 1675 } 1676 1677 @Override 1678 protected String getCurrentPageDescription() { 1679 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1680 int stringId = R.string.default_scroll_format; 1681 int count = 0; 1682 1683 if (page < mNumAppsPages) { 1684 stringId = R.string.apps_customize_apps_scroll_format; 1685 count = mNumAppsPages; 1686 } else { 1687 page -= mNumAppsPages; 1688 stringId = R.string.apps_customize_widgets_scroll_format; 1689 count = mNumWidgetPages; 1690 } 1691 1692 return String.format(getContext().getString(stringId), page + 1, count); 1693 } 1694} 1695