AppsCustomizePagedView.java revision 39e5d176e6e375e7ae46d42ed14412d54cb223c9
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 private void endDragging(View target, boolean success) { 729 mLauncher.getWorkspace().onDragStopped(success); 730 if (!success || (target != mLauncher.getWorkspace() && 731 !(target instanceof DeleteDropTarget))) { 732 // Exit spring loaded mode if we have not successfully dropped or have not handled the 733 // drop in Workspace 734 mLauncher.exitSpringLoadedDragMode(); 735 } 736 mLauncher.unlockScreenOrientationOnLargeUI(); 737 } 738 739 @Override 740 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 741 mInTransition = true; 742 if (toWorkspace) { 743 cancelAllTasks(); 744 } 745 } 746 747 @Override 748 public View getContent() { 749 return null; 750 } 751 752 @Override 753 public void onLauncherTransitionStep(Launcher l, float t) { 754 } 755 756 @Override 757 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 758 mInTransition = false; 759 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 760 onSyncWidgetPageItems(d); 761 } 762 mDeferredSyncWidgetPageItems.clear(); 763 } 764 765 @Override 766 public void onDropCompleted(View target, DragObject d, boolean success) { 767 endDragging(target, success); 768 769 // Display an error message if the drag failed due to there not being enough space on the 770 // target layout we were dropping on. 771 if (!success) { 772 boolean showOutOfSpaceMessage = false; 773 if (target instanceof Workspace) { 774 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 775 Workspace workspace = (Workspace) target; 776 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 777 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 778 if (layout != null) { 779 layout.calculateSpans(itemInfo); 780 showOutOfSpaceMessage = 781 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 782 } 783 } 784 if (showOutOfSpaceMessage) { 785 mLauncher.showOutOfSpaceMessage(); 786 } 787 788 d.deferDragViewCleanupPostAnimation = false; 789 cleanupWidgetPreloading(); 790 } 791 mDraggingWidget = false; 792 } 793 794 @Override 795 protected void onDetachedFromWindow() { 796 super.onDetachedFromWindow(); 797 cancelAllTasks(); 798 } 799 800 public void clearAllWidgetPages() { 801 cancelAllTasks(); 802 int count = getChildCount(); 803 for (int i = 0; i < count; i++) { 804 View v = getPageAt(i); 805 if (v instanceof PagedViewGridLayout) { 806 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 807 mDirtyPageContent.set(i, true); 808 } 809 } 810 } 811 812 private void cancelAllTasks() { 813 // Clean up all the async tasks 814 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 815 while (iter.hasNext()) { 816 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 817 task.cancel(false); 818 iter.remove(); 819 mDirtyPageContent.set(task.page, true); 820 } 821 } 822 823 public void setContentType(ContentType type) { 824 if (type == ContentType.Widgets) { 825 invalidatePageData(mNumAppsPages, true); 826 } else if (type == ContentType.Applications) { 827 invalidatePageData(0, true); 828 } 829 } 830 831 protected void snapToPage(int whichPage, int delta, int duration) { 832 super.snapToPage(whichPage, delta, duration); 833 updateCurrentTab(whichPage); 834 835 // Update the thread priorities given the direction lookahead 836 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 837 while (iter.hasNext()) { 838 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 839 int pageIndex = task.page; 840 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 841 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 842 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 843 } else { 844 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 845 } 846 } 847 } 848 849 private void updateCurrentTab(int currentPage) { 850 AppsCustomizeTabHost tabHost = getTabHost(); 851 if (tabHost != null) { 852 String tag = tabHost.getCurrentTabTag(); 853 if (tag != null) { 854 if (currentPage >= mNumAppsPages && 855 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 856 tabHost.setCurrentTabFromContent(ContentType.Widgets); 857 } else if (currentPage < mNumAppsPages && 858 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 859 tabHost.setCurrentTabFromContent(ContentType.Applications); 860 } 861 } 862 } 863 } 864 865 /* 866 * Apps PagedView implementation 867 */ 868 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 869 int childCount = layout.getChildCount(); 870 for (int i = 0; i < childCount; ++i) { 871 layout.getChildAt(i).setVisibility(visibility); 872 } 873 } 874 private void setupPage(PagedViewCellLayout layout) { 875 layout.setCellCount(mCellCountX, mCellCountY); 876 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 877 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 878 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 879 880 // Note: We force a measure here to get around the fact that when we do layout calculations 881 // immediately after syncing, we don't have a proper width. That said, we already know the 882 // expected page width, so we can actually optimize by hiding all the TextView-based 883 // children that are expensive to measure, and let that happen naturally later. 884 setVisibilityOnChildren(layout, View.GONE); 885 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 886 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 887 layout.setMinimumWidth(getPageContentWidth()); 888 layout.measure(widthSpec, heightSpec); 889 setVisibilityOnChildren(layout, View.VISIBLE); 890 } 891 892 public void syncAppsPageItems(int page, boolean immediate) { 893 // ensure that we have the right number of items on the pages 894 int numCells = mCellCountX * mCellCountY; 895 int startIndex = page * numCells; 896 int endIndex = Math.min(startIndex + numCells, mApps.size()); 897 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 898 899 layout.removeAllViewsOnPage(); 900 ArrayList<Object> items = new ArrayList<Object>(); 901 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 902 for (int i = startIndex; i < endIndex; ++i) { 903 ApplicationInfo info = mApps.get(i); 904 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 905 R.layout.apps_customize_application, layout, false); 906 icon.applyFromApplicationInfo(info, true, this); 907 icon.setOnClickListener(this); 908 icon.setOnLongClickListener(this); 909 icon.setOnTouchListener(this); 910 icon.setOnKeyListener(this); 911 912 int index = i - startIndex; 913 int x = index % mCellCountX; 914 int y = index / mCellCountX; 915 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 916 917 items.add(info); 918 images.add(info.iconBitmap); 919 } 920 921 layout.createHardwareLayers(); 922 } 923 924 /** 925 * A helper to return the priority for loading of the specified widget page. 926 */ 927 private int getWidgetPageLoadPriority(int page) { 928 // If we are snapping to another page, use that index as the target page index 929 int toPage = mCurrentPage; 930 if (mNextPage > -1) { 931 toPage = mNextPage; 932 } 933 934 // We use the distance from the target page as an initial guess of priority, but if there 935 // are no pages of higher priority than the page specified, then bump up the priority of 936 // the specified page. 937 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 938 int minPageDiff = Integer.MAX_VALUE; 939 while (iter.hasNext()) { 940 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 941 minPageDiff = Math.abs(task.page - toPage); 942 } 943 944 int rawPageDiff = Math.abs(page - toPage); 945 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 946 } 947 /** 948 * Return the appropriate thread priority for loading for a given page (we give the current 949 * page much higher priority) 950 */ 951 private int getThreadPriorityForPage(int page) { 952 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 953 int pageDiff = getWidgetPageLoadPriority(page); 954 if (pageDiff <= 0) { 955 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 956 } else if (pageDiff <= 1) { 957 return Process.THREAD_PRIORITY_LOWEST; 958 } else { 959 return Process.THREAD_PRIORITY_LOWEST; 960 } 961 } 962 private int getSleepForPage(int page) { 963 int pageDiff = getWidgetPageLoadPriority(page); 964 return Math.max(0, pageDiff * sPageSleepDelay); 965 } 966 /** 967 * Creates and executes a new AsyncTask to load a page of widget previews. 968 */ 969 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 970 int cellWidth, int cellHeight, int cellCountX) { 971 972 // Prune all tasks that are no longer needed 973 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 974 while (iter.hasNext()) { 975 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 976 int taskPage = task.page; 977 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 978 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 979 task.cancel(false); 980 iter.remove(); 981 } else { 982 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 983 } 984 } 985 986 // We introduce a slight delay to order the loading of side pages so that we don't thrash 987 final int sleepMs = getSleepForPage(page); 988 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 989 new AsyncTaskCallback() { 990 @Override 991 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 992 try { 993 try { 994 Thread.sleep(sleepMs); 995 } catch (Exception e) {} 996 loadWidgetPreviewsInBackground(task, data); 997 } finally { 998 if (task.isCancelled()) { 999 data.cleanup(true); 1000 } 1001 } 1002 } 1003 }, 1004 new AsyncTaskCallback() { 1005 @Override 1006 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1007 mRunningTasks.remove(task); 1008 if (task.isCancelled()) return; 1009 // do cleanup inside onSyncWidgetPageItems 1010 onSyncWidgetPageItems(data); 1011 } 1012 }); 1013 1014 // Ensure that the task is appropriately prioritized and runs in parallel 1015 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1016 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1017 t.setThreadPriority(getThreadPriorityForPage(page)); 1018 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1019 mRunningTasks.add(t); 1020 } 1021 1022 /* 1023 * Widgets PagedView implementation 1024 */ 1025 private void setupPage(PagedViewGridLayout layout) { 1026 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1027 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1028 1029 // Note: We force a measure here to get around the fact that when we do layout calculations 1030 // immediately after syncing, we don't have a proper width. 1031 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1032 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1033 layout.setMinimumWidth(getPageContentWidth()); 1034 layout.measure(widthSpec, heightSpec); 1035 } 1036 1037 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1038 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 1039 } 1040 1041 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1042 float scale, int multiplyColor) { 1043 if (bitmap != null) { 1044 Canvas c = new Canvas(bitmap); 1045 c.scale(scale, scale); 1046 Rect oldBounds = d.copyBounds(); 1047 d.setBounds(x, y, x + w, y + h); 1048 d.draw(c); 1049 d.setBounds(oldBounds); // Restore the bounds 1050 c.setBitmap(null); 1051 } 1052 } 1053 private Bitmap getShortcutPreview(ResolveInfo info) { 1054 // Render the background 1055 int offset = 0; 1056 int bitmapSize = mAppIconSize; 1057 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1058 1059 // Render the icon 1060 Drawable icon = mIconCache.getFullResIcon(info); 1061 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1062 return preview; 1063 } 1064 1065 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1066 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1067 // Load the preview image if possible 1068 String packageName = provider.getPackageName(); 1069 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1070 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1071 1072 Drawable drawable = null; 1073 if (previewImage != 0) { 1074 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1075 if (drawable == null) { 1076 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1077 Integer.toHexString(previewImage) + " for provider: " + provider); 1078 } 1079 } 1080 1081 int bitmapWidth; 1082 int bitmapHeight; 1083 boolean widgetPreviewExists = (drawable != null); 1084 if (widgetPreviewExists) { 1085 bitmapWidth = drawable.getIntrinsicWidth(); 1086 bitmapHeight = drawable.getIntrinsicHeight(); 1087 } else { 1088 // Determine the size of the bitmap for the preview image we will generate 1089 // TODO: This actually uses the apps customize cell layout params, where as we make want 1090 // the Workspace params for more accuracy. 1091 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1092 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1093 if (cellHSpan == cellVSpan) { 1094 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1095 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1096 if (cellHSpan <= 1) { 1097 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1098 } else { 1099 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1100 } 1101 } 1102 } 1103 1104 float scale = 1f; 1105 if (bitmapWidth > maxWidth) { 1106 scale = maxWidth / (float) bitmapWidth; 1107 } 1108 if (bitmapHeight * scale > maxHeight) { 1109 scale = maxHeight / (float) bitmapHeight; 1110 } 1111 if (scale != 1f) { 1112 bitmapWidth = (int) (scale * bitmapWidth); 1113 bitmapHeight = (int) (scale * bitmapHeight); 1114 } 1115 1116 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1117 1118 if (widgetPreviewExists) { 1119 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1120 } else { 1121 // Generate a preview image if we couldn't load one 1122 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1123 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1124 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1125 if (cellHSpan != 1 || cellVSpan != 1) { 1126 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1127 bitmapHeight); 1128 } 1129 1130 // Draw the icon in the top left corner 1131 try { 1132 Drawable icon = null; 1133 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1134 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1135 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1136 Resources resources = mLauncher.getResources(); 1137 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1138 1139 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1140 (int) (mAppIconSize * iconScale), 1141 (int) (mAppIconSize * iconScale)); 1142 } catch (Resources.NotFoundException e) {} 1143 } 1144 return preview; 1145 } 1146 1147 public void syncWidgetPageItems(final int page, final boolean immediate) { 1148 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1149 1150 // Calculate the dimensions of each cell we are giving to each widget 1151 final ArrayList<Object> items = new ArrayList<Object>(); 1152 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1153 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1154 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1155 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1156 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1157 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1158 1159 // Prepare the set of widgets to load previews for in the background 1160 int offset = (page - mNumAppsPages) * numItemsPerPage; 1161 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1162 items.add(mWidgets.get(i)); 1163 } 1164 1165 // Prepopulate the pages with the other widget info, and fill in the previews later 1166 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1167 layout.setColumnCount(layout.getCellCountX()); 1168 for (int i = 0; i < items.size(); ++i) { 1169 Object rawInfo = items.get(i); 1170 PendingAddItemInfo createItemInfo = null; 1171 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1172 R.layout.apps_customize_widget, layout, false); 1173 if (rawInfo instanceof AppWidgetProviderInfo) { 1174 // Fill in the widget information 1175 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1176 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1177 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1178 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans); 1179 widget.setTag(createItemInfo); 1180 widget.setShortPressListener(this); 1181 } else if (rawInfo instanceof ResolveInfo) { 1182 // Fill in the shortcuts information 1183 ResolveInfo info = (ResolveInfo) rawInfo; 1184 createItemInfo = new PendingAddItemInfo(); 1185 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1186 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1187 info.activityInfo.name); 1188 widget.applyFromResolveInfo(mPackageManager, info); 1189 widget.setTag(createItemInfo); 1190 } 1191 widget.setOnClickListener(this); 1192 widget.setOnLongClickListener(this); 1193 widget.setOnTouchListener(this); 1194 widget.setOnKeyListener(this); 1195 1196 // Layout each widget 1197 int ix = i % mWidgetCountX; 1198 int iy = i / mWidgetCountX; 1199 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1200 GridLayout.spec(iy, GridLayout.LEFT), 1201 GridLayout.spec(ix, GridLayout.TOP)); 1202 lp.width = cellWidth; 1203 lp.height = cellHeight; 1204 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1205 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1206 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1207 layout.addView(widget, lp); 1208 } 1209 1210 // wait until a call on onLayout to start loading, because 1211 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1212 // TODO: can we do a measure/layout immediately? 1213 layout.setOnLayoutListener(new Runnable() { 1214 public void run() { 1215 // Load the widget previews 1216 int maxPreviewWidth = cellWidth; 1217 int maxPreviewHeight = cellHeight; 1218 if (layout.getChildCount() > 0) { 1219 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1220 int[] maxSize = w.getPreviewSize(); 1221 maxPreviewWidth = maxSize[0]; 1222 maxPreviewHeight = maxSize[1]; 1223 } 1224 if (immediate) { 1225 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1226 maxPreviewWidth, maxPreviewHeight, null, null); 1227 loadWidgetPreviewsInBackground(null, data); 1228 onSyncWidgetPageItems(data); 1229 } else { 1230 prepareLoadWidgetPreviewsTask(page, items, 1231 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1232 } 1233 } 1234 }); 1235 } 1236 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1237 AsyncTaskPageData data) { 1238 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1239 // previews synchronously 1240 if (task != null) { 1241 // Ensure that this task starts running at the correct priority 1242 task.syncThreadPriority(); 1243 } 1244 1245 // Load each of the widget/shortcut previews 1246 ArrayList<Object> items = data.items; 1247 ArrayList<Bitmap> images = data.generatedImages; 1248 int count = items.size(); 1249 for (int i = 0; i < count; ++i) { 1250 if (task != null) { 1251 // Ensure we haven't been cancelled yet 1252 if (task.isCancelled()) break; 1253 // Before work on each item, ensure that this task is running at the correct 1254 // priority 1255 task.syncThreadPriority(); 1256 } 1257 1258 Object rawInfo = items.get(i); 1259 if (rawInfo instanceof AppWidgetProviderInfo) { 1260 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1261 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1262 1263 int maxWidth = Math.min(data.maxImageWidth, 1264 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1265 int maxHeight = Math.min(data.maxImageHeight, 1266 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1267 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1268 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1269 images.add(b); 1270 } else if (rawInfo instanceof ResolveInfo) { 1271 // Fill in the shortcuts information 1272 ResolveInfo info = (ResolveInfo) rawInfo; 1273 images.add(getShortcutPreview(info)); 1274 } 1275 } 1276 } 1277 1278 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1279 if (mInTransition) { 1280 mDeferredSyncWidgetPageItems.add(data); 1281 return; 1282 } 1283 try { 1284 int page = data.page; 1285 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1286 1287 ArrayList<Object> items = data.items; 1288 int count = items.size(); 1289 for (int i = 0; i < count; ++i) { 1290 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1291 if (widget != null) { 1292 Bitmap preview = data.generatedImages.get(i); 1293 widget.applyPreview(new FastBitmapDrawable(preview), i); 1294 } 1295 } 1296 1297 layout.createHardwareLayer(); 1298 invalidate(); 1299 1300 // Update all thread priorities 1301 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1302 while (iter.hasNext()) { 1303 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1304 int pageIndex = task.page; 1305 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1306 } 1307 } finally { 1308 data.cleanup(false); 1309 } 1310 } 1311 1312 @Override 1313 public void syncPages() { 1314 removeAllViews(); 1315 cancelAllTasks(); 1316 1317 Context context = getContext(); 1318 for (int j = 0; j < mNumWidgetPages; ++j) { 1319 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1320 mWidgetCountY); 1321 setupPage(layout); 1322 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1323 LayoutParams.MATCH_PARENT)); 1324 } 1325 1326 for (int i = 0; i < mNumAppsPages; ++i) { 1327 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1328 setupPage(layout); 1329 addView(layout); 1330 } 1331 } 1332 1333 @Override 1334 public void syncPageItems(int page, boolean immediate) { 1335 if (page < mNumAppsPages) { 1336 syncAppsPageItems(page, immediate); 1337 } else { 1338 syncWidgetPageItems(page, immediate); 1339 } 1340 } 1341 1342 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1343 // it is in the z-order. This is important to insure touch events are handled correctly. 1344 View getPageAt(int index) { 1345 return getChildAt(indexToPage(index)); 1346 } 1347 1348 @Override 1349 protected int indexToPage(int index) { 1350 return getChildCount() - index - 1; 1351 } 1352 1353 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1354 @Override 1355 protected void screenScrolled(int screenCenter) { 1356 super.screenScrolled(screenCenter); 1357 1358 for (int i = 0; i < getChildCount(); i++) { 1359 View v = getPageAt(i); 1360 if (v != null) { 1361 float scrollProgress = getScrollProgress(screenCenter, v, i); 1362 1363 float interpolatedProgress = 1364 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1365 float scale = (1 - interpolatedProgress) + 1366 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1367 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1368 1369 float alpha; 1370 1371 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1372 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1373 1 - Math.abs(scrollProgress)) : 1.0f; 1374 } else { 1375 // On large screens we need to fade the page as it nears its leftmost position 1376 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1377 } 1378 1379 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1380 int pageWidth = v.getMeasuredWidth(); 1381 int pageHeight = v.getMeasuredHeight(); 1382 1383 if (PERFORM_OVERSCROLL_ROTATION) { 1384 if (i == 0 && scrollProgress < 0) { 1385 // Overscroll to the left 1386 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1387 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1388 scale = 1.0f; 1389 alpha = 1.0f; 1390 // On the first page, we don't want the page to have any lateral motion 1391 translationX = 0; 1392 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1393 // Overscroll to the right 1394 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1395 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1396 scale = 1.0f; 1397 alpha = 1.0f; 1398 // On the last page, we don't want the page to have any lateral motion. 1399 translationX = 0; 1400 } else { 1401 v.setPivotY(pageHeight / 2.0f); 1402 v.setPivotX(pageWidth / 2.0f); 1403 v.setRotationY(0f); 1404 } 1405 } 1406 1407 v.setTranslationX(translationX); 1408 v.setScaleX(scale); 1409 v.setScaleY(scale); 1410 v.setAlpha(alpha); 1411 1412 // If the view has 0 alpha, we set it to be invisible so as to prevent 1413 // it from accepting touches 1414 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1415 v.setVisibility(INVISIBLE); 1416 } else if (v.getVisibility() != VISIBLE) { 1417 v.setVisibility(VISIBLE); 1418 } 1419 } 1420 } 1421 } 1422 1423 protected void overScroll(float amount) { 1424 acceleratedOverScroll(amount); 1425 } 1426 1427 /** 1428 * Used by the parent to get the content width to set the tab bar to 1429 * @return 1430 */ 1431 public int getPageContentWidth() { 1432 return mContentWidth; 1433 } 1434 1435 @Override 1436 protected void onPageEndMoving() { 1437 super.onPageEndMoving(); 1438 1439 // We reset the save index when we change pages so that it will be recalculated on next 1440 // rotation 1441 mSaveInstanceStateItemIndex = -1; 1442 } 1443 1444 /* 1445 * AllAppsView implementation 1446 */ 1447 @Override 1448 public void setup(Launcher launcher, DragController dragController) { 1449 mLauncher = launcher; 1450 mDragController = dragController; 1451 } 1452 @Override 1453 public void zoom(float zoom, boolean animate) { 1454 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1455 } 1456 @Override 1457 public boolean isVisible() { 1458 return (getVisibility() == VISIBLE); 1459 } 1460 @Override 1461 public boolean isAnimating() { 1462 return false; 1463 } 1464 @Override 1465 public void setApps(ArrayList<ApplicationInfo> list) { 1466 mApps = list; 1467 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1468 updatePageCounts(); 1469 1470 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1471 // request a layout to do this test and invalidate the page data when ready. 1472 if (testDataReady()) requestLayout(); 1473 } 1474 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1475 // We add it in place, in alphabetical order 1476 int count = list.size(); 1477 for (int i = 0; i < count; ++i) { 1478 ApplicationInfo info = list.get(i); 1479 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1480 if (index < 0) { 1481 mApps.add(-(index + 1), info); 1482 } 1483 } 1484 } 1485 @Override 1486 public void addApps(ArrayList<ApplicationInfo> list) { 1487 addAppsWithoutInvalidate(list); 1488 updatePageCounts(); 1489 invalidatePageData(); 1490 } 1491 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1492 ComponentName removeComponent = item.intent.getComponent(); 1493 int length = list.size(); 1494 for (int i = 0; i < length; ++i) { 1495 ApplicationInfo info = list.get(i); 1496 if (info.intent.getComponent().equals(removeComponent)) { 1497 return i; 1498 } 1499 } 1500 return -1; 1501 } 1502 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1503 // loop through all the apps and remove apps that have the same component 1504 int length = list.size(); 1505 for (int i = 0; i < length; ++i) { 1506 ApplicationInfo info = list.get(i); 1507 int removeIndex = findAppByComponent(mApps, info); 1508 if (removeIndex > -1) { 1509 mApps.remove(removeIndex); 1510 } 1511 } 1512 } 1513 @Override 1514 public void removeApps(ArrayList<ApplicationInfo> list) { 1515 removeAppsWithoutInvalidate(list); 1516 updatePageCounts(); 1517 invalidatePageData(); 1518 } 1519 @Override 1520 public void updateApps(ArrayList<ApplicationInfo> list) { 1521 // We remove and re-add the updated applications list because it's properties may have 1522 // changed (ie. the title), and this will ensure that the items will be in their proper 1523 // place in the list. 1524 removeAppsWithoutInvalidate(list); 1525 addAppsWithoutInvalidate(list); 1526 updatePageCounts(); 1527 1528 invalidatePageData(); 1529 } 1530 1531 @Override 1532 public void reset() { 1533 // If we have reset, then we should not continue to restore the previous state 1534 mSaveInstanceStateItemIndex = -1; 1535 1536 AppsCustomizeTabHost tabHost = getTabHost(); 1537 String tag = tabHost.getCurrentTabTag(); 1538 if (tag != null) { 1539 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1540 tabHost.setCurrentTabFromContent(ContentType.Applications); 1541 } 1542 } 1543 1544 if (mCurrentPage != 0) { 1545 invalidatePageData(0); 1546 } 1547 } 1548 1549 private AppsCustomizeTabHost getTabHost() { 1550 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1551 } 1552 1553 @Override 1554 public void dumpState() { 1555 // TODO: Dump information related to current list of Applications, Widgets, etc. 1556 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1557 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1558 } 1559 1560 private void dumpAppWidgetProviderInfoList(String tag, String label, 1561 ArrayList<Object> list) { 1562 Log.d(tag, label + " size=" + list.size()); 1563 for (Object i: list) { 1564 if (i instanceof AppWidgetProviderInfo) { 1565 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1566 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1567 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1568 + " initialLayout=" + info.initialLayout 1569 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1570 } else if (i instanceof ResolveInfo) { 1571 ResolveInfo info = (ResolveInfo) i; 1572 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1573 + info.icon); 1574 } 1575 } 1576 } 1577 1578 @Override 1579 public void surrender() { 1580 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1581 // should stop this now. 1582 1583 // Stop all background tasks 1584 cancelAllTasks(); 1585 } 1586 1587 @Override 1588 public void iconPressed(PagedViewIcon icon) { 1589 // Reset the previously pressed icon and store a reference to the pressed icon so that 1590 // we can reset it on return to Launcher (in Launcher.onResume()) 1591 if (mPressedIcon != null) { 1592 mPressedIcon.resetDrawableState(); 1593 } 1594 mPressedIcon = icon; 1595 } 1596 1597 public void resetDrawableState() { 1598 if (mPressedIcon != null) { 1599 mPressedIcon.resetDrawableState(); 1600 mPressedIcon = null; 1601 } 1602 } 1603 1604 /* 1605 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1606 * widget previews in the background with the AsyncTasks. 1607 */ 1608 final static int sLookBehindPageCount = 2; 1609 final static int sLookAheadPageCount = 2; 1610 protected int getAssociatedLowerPageBound(int page) { 1611 final int count = getChildCount(); 1612 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1613 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1614 return windowMinIndex; 1615 } 1616 protected int getAssociatedUpperPageBound(int page) { 1617 final int count = getChildCount(); 1618 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1619 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1620 count - 1); 1621 return windowMaxIndex; 1622 } 1623 1624 @Override 1625 protected String getCurrentPageDescription() { 1626 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1627 int stringId = R.string.default_scroll_format; 1628 int count = 0; 1629 1630 if (page < mNumAppsPages) { 1631 stringId = R.string.apps_customize_apps_scroll_format; 1632 count = mNumAppsPages; 1633 } else { 1634 page -= mNumAppsPages; 1635 stringId = R.string.apps_customize_widgets_scroll_format; 1636 count = mNumWidgetPages; 1637 } 1638 1639 return String.format(mContext.getString(stringId), page + 1, count); 1640 } 1641} 1642