AppsCustomizePagedView.java revision 1f36270212e46b6ec0f27a0109ceaa9eb4a4995d
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 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 581 info.spanY, info, false); 582 583 // We want the first widget layout to be the correct size. This will be important 584 // for width size reporting to the AppWidgetManager. 585 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 586 unScaledSize[1]); 587 lp.x = lp.y = 0; 588 lp.customPosition = true; 589 hostView.setLayoutParams(lp); 590 mLauncher.getDragLayer().addView(hostView); 591 } 592 }; 593 post(mInflateWidgetRunnable); 594 } 595 596 @Override 597 public void onShortPress(View v) { 598 // We are anticipating a long press, and we use this time to load bind and instantiate 599 // the widget. This will need to be cleaned up if it turns out no long press occurs. 600 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 601 loadWidgetInBackground(mCreateWidgetInfo); 602 } 603 604 private void cleanupWidgetPreloading() { 605 PendingAddWidgetInfo info = mCreateWidgetInfo; 606 mCreateWidgetInfo = null; 607 if (mWidgetCleanupState >= 0 && mWidgetLoadingId != -1) { 608 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 609 } 610 if (mWidgetCleanupState == WIDGET_BOUND) { 611 removeCallbacks(mInflateWidgetRunnable); 612 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 613 AppWidgetHostView widget = info.boundWidget; 614 int widgetId = widget.getAppWidgetId(); 615 mLauncher.getAppWidgetHost().deleteAppWidgetId(widgetId); 616 mLauncher.getDragLayer().removeView(widget); 617 } 618 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 619 mWidgetLoadingId = -1; 620 } 621 622 @Override 623 public void cleanUpShortPress(View v) { 624 if (!mDraggingWidget) { 625 cleanupWidgetPreloading(); 626 } 627 } 628 629 private void beginDraggingWidget(View v) { 630 mDraggingWidget = true; 631 // Get the widget preview as the drag representation 632 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 633 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 634 635 // Compose the drag image 636 Bitmap preview; 637 Bitmap outline; 638 float scale = 1f; 639 if (createItemInfo instanceof PendingAddWidgetInfo) { 640 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 641 createItemInfo = createWidgetInfo; 642 int spanX = createItemInfo.spanX; 643 int spanY = createItemInfo.spanY; 644 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 645 createWidgetInfo, true); 646 647 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 648 float minScale = 1.25f; 649 int minWidth, minHeight; 650 minWidth = Math.max((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 651 minHeight = Math.max((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 652 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 653 createWidgetInfo.icon, spanX, spanY, minWidth, minHeight); 654 655 // Determine the image view drawable scale relative to the preview 656 float[] mv = new float[9]; 657 Matrix m = new Matrix(); 658 m.setRectToRect( 659 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 660 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 661 (float) previewDrawable.getIntrinsicHeight()), 662 Matrix.ScaleToFit.START); 663 m.getValues(mv); 664 scale = (float) mv[0]; 665 } else { 666 // Workaround for the fact that we don't keep the original ResolveInfo associated with 667 // the shortcut around. To get the icon, we just render the preview image (which has 668 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 669 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 670 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 671 Drawable d = image.getDrawable(); 672 mCanvas.setBitmap(preview); 673 d.draw(mCanvas); 674 mCanvas.setBitmap(null); 675 createItemInfo.spanX = createItemInfo.spanY = 1; 676 } 677 678 // We use a custom alpha clip table for the default widget previews 679 Paint alphaClipPaint = null; 680 if (createItemInfo instanceof PendingAddWidgetInfo) { 681 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 682 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 683 alphaClipPaint = new Paint(); 684 alphaClipPaint.setMaskFilter(alphaClipTable); 685 } 686 } 687 688 // Save the preview for the outline generation, then dim the preview 689 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 690 false); 691 692 // Start the drag 693 alphaClipPaint = null; 694 mLauncher.lockScreenOrientationOnLargeUI(); 695 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 696 mDragController.startDrag(image, preview, this, createItemInfo, 697 DragController.DRAG_ACTION_COPY, null, scale); 698 outline.recycle(); 699 preview.recycle(); 700 } 701 702 @Override 703 protected boolean beginDragging(final View v) { 704 if (!super.beginDragging(v)) return false; 705 706 if (v instanceof PagedViewIcon) { 707 beginDraggingApplication(v); 708 } else if (v instanceof PagedViewWidget) { 709 beginDraggingWidget(v); 710 } 711 712 // We delay entering spring-loaded mode slightly to make sure the UI 713 // thready is free of any work. 714 postDelayed(new Runnable() { 715 @Override 716 public void run() { 717 // We don't enter spring-loaded mode if the drag has been cancelled 718 if (mLauncher.getDragController().isDragging()) { 719 // Dismiss the cling 720 mLauncher.dismissAllAppsCling(null); 721 722 // Reset the alpha on the dragged icon before we drag 723 resetDrawableState(); 724 725 // Go into spring loaded mode (must happen before we startDrag()) 726 mLauncher.enterSpringLoadedDragMode(); 727 } 728 } 729 }, 150); 730 731 return true; 732 } 733 734 /** 735 * Clean up after dragging. 736 * 737 * @param target where the item was dragged to (can be null if the item was flung) 738 */ 739 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 740 mLauncher.getWorkspace().onDragStopped(success); 741 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 742 !(target instanceof DeleteDropTarget))) { 743 // Exit spring loaded mode if we have not successfully dropped or have not handled the 744 // drop in Workspace 745 mLauncher.exitSpringLoadedDragMode(); 746 } 747 mLauncher.unlockScreenOrientationOnLargeUI(); 748 } 749 750 @Override 751 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 752 mInTransition = true; 753 if (toWorkspace) { 754 cancelAllTasks(); 755 } 756 } 757 758 @Override 759 public View getContent() { 760 return null; 761 } 762 763 @Override 764 public void onLauncherTransitionStep(Launcher l, float t) { 765 } 766 767 @Override 768 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 769 mInTransition = false; 770 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 771 onSyncWidgetPageItems(d); 772 } 773 mDeferredSyncWidgetPageItems.clear(); 774 } 775 776 @Override 777 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 778 boolean success) { 779 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 780 if (isFlingToDelete) return; 781 782 endDragging(target, false, success); 783 784 // Display an error message if the drag failed due to there not being enough space on the 785 // target layout we were dropping on. 786 if (!success) { 787 boolean showOutOfSpaceMessage = false; 788 if (target instanceof Workspace) { 789 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 790 Workspace workspace = (Workspace) target; 791 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 792 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 793 if (layout != null) { 794 layout.calculateSpans(itemInfo); 795 showOutOfSpaceMessage = 796 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 797 } 798 } 799 if (showOutOfSpaceMessage) { 800 mLauncher.showOutOfSpaceMessage(false); 801 } 802 803 d.deferDragViewCleanupPostAnimation = false; 804 cleanupWidgetPreloading(); 805 } 806 mDraggingWidget = false; 807 } 808 809 @Override 810 public void onFlingToDeleteCompleted() { 811 // We just dismiss the drag when we fling, so cleanup here 812 endDragging(null, true, true); 813 cleanupWidgetPreloading(); 814 mDraggingWidget = false; 815 } 816 817 @Override 818 public boolean supportsFlingToDelete() { 819 return true; 820 } 821 822 @Override 823 protected void onDetachedFromWindow() { 824 super.onDetachedFromWindow(); 825 cancelAllTasks(); 826 } 827 828 public void clearAllWidgetPages() { 829 cancelAllTasks(); 830 int count = getChildCount(); 831 for (int i = 0; i < count; i++) { 832 View v = getPageAt(i); 833 if (v instanceof PagedViewGridLayout) { 834 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 835 mDirtyPageContent.set(i, true); 836 } 837 } 838 } 839 840 private void cancelAllTasks() { 841 // Clean up all the async tasks 842 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 843 while (iter.hasNext()) { 844 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 845 task.cancel(false); 846 iter.remove(); 847 mDirtyPageContent.set(task.page, true); 848 } 849 } 850 851 public void setContentType(ContentType type) { 852 if (type == ContentType.Widgets) { 853 invalidatePageData(mNumAppsPages, true); 854 } else if (type == ContentType.Applications) { 855 invalidatePageData(0, true); 856 } 857 } 858 859 protected void snapToPage(int whichPage, int delta, int duration) { 860 super.snapToPage(whichPage, delta, duration); 861 updateCurrentTab(whichPage); 862 863 // Update the thread priorities given the direction lookahead 864 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 865 while (iter.hasNext()) { 866 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 867 int pageIndex = task.page; 868 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 869 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 870 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 871 } else { 872 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 873 } 874 } 875 } 876 877 private void updateCurrentTab(int currentPage) { 878 AppsCustomizeTabHost tabHost = getTabHost(); 879 if (tabHost != null) { 880 String tag = tabHost.getCurrentTabTag(); 881 if (tag != null) { 882 if (currentPage >= mNumAppsPages && 883 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 884 tabHost.setCurrentTabFromContent(ContentType.Widgets); 885 } else if (currentPage < mNumAppsPages && 886 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 887 tabHost.setCurrentTabFromContent(ContentType.Applications); 888 } 889 } 890 } 891 } 892 893 /* 894 * Apps PagedView implementation 895 */ 896 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 897 int childCount = layout.getChildCount(); 898 for (int i = 0; i < childCount; ++i) { 899 layout.getChildAt(i).setVisibility(visibility); 900 } 901 } 902 private void setupPage(PagedViewCellLayout layout) { 903 layout.setCellCount(mCellCountX, mCellCountY); 904 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 905 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 906 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 907 908 // Note: We force a measure here to get around the fact that when we do layout calculations 909 // immediately after syncing, we don't have a proper width. That said, we already know the 910 // expected page width, so we can actually optimize by hiding all the TextView-based 911 // children that are expensive to measure, and let that happen naturally later. 912 setVisibilityOnChildren(layout, View.GONE); 913 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 914 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 915 layout.setMinimumWidth(getPageContentWidth()); 916 layout.measure(widthSpec, heightSpec); 917 setVisibilityOnChildren(layout, View.VISIBLE); 918 } 919 920 public void syncAppsPageItems(int page, boolean immediate) { 921 // ensure that we have the right number of items on the pages 922 int numCells = mCellCountX * mCellCountY; 923 int startIndex = page * numCells; 924 int endIndex = Math.min(startIndex + numCells, mApps.size()); 925 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 926 927 layout.removeAllViewsOnPage(); 928 ArrayList<Object> items = new ArrayList<Object>(); 929 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 930 for (int i = startIndex; i < endIndex; ++i) { 931 ApplicationInfo info = mApps.get(i); 932 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 933 R.layout.apps_customize_application, layout, false); 934 icon.applyFromApplicationInfo(info, true, this); 935 icon.setOnClickListener(this); 936 icon.setOnLongClickListener(this); 937 icon.setOnTouchListener(this); 938 icon.setOnKeyListener(this); 939 940 int index = i - startIndex; 941 int x = index % mCellCountX; 942 int y = index / mCellCountX; 943 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 944 945 items.add(info); 946 images.add(info.iconBitmap); 947 } 948 949 layout.createHardwareLayers(); 950 } 951 952 /** 953 * A helper to return the priority for loading of the specified widget page. 954 */ 955 private int getWidgetPageLoadPriority(int page) { 956 // If we are snapping to another page, use that index as the target page index 957 int toPage = mCurrentPage; 958 if (mNextPage > -1) { 959 toPage = mNextPage; 960 } 961 962 // We use the distance from the target page as an initial guess of priority, but if there 963 // are no pages of higher priority than the page specified, then bump up the priority of 964 // the specified page. 965 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 966 int minPageDiff = Integer.MAX_VALUE; 967 while (iter.hasNext()) { 968 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 969 minPageDiff = Math.abs(task.page - toPage); 970 } 971 972 int rawPageDiff = Math.abs(page - toPage); 973 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 974 } 975 /** 976 * Return the appropriate thread priority for loading for a given page (we give the current 977 * page much higher priority) 978 */ 979 private int getThreadPriorityForPage(int page) { 980 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 981 int pageDiff = getWidgetPageLoadPriority(page); 982 if (pageDiff <= 0) { 983 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 984 } else if (pageDiff <= 1) { 985 return Process.THREAD_PRIORITY_LOWEST; 986 } else { 987 return Process.THREAD_PRIORITY_LOWEST; 988 } 989 } 990 private int getSleepForPage(int page) { 991 int pageDiff = getWidgetPageLoadPriority(page); 992 return Math.max(0, pageDiff * sPageSleepDelay); 993 } 994 /** 995 * Creates and executes a new AsyncTask to load a page of widget previews. 996 */ 997 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 998 int cellWidth, int cellHeight, int cellCountX) { 999 1000 // Prune all tasks that are no longer needed 1001 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1002 while (iter.hasNext()) { 1003 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1004 int taskPage = task.page; 1005 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1006 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1007 task.cancel(false); 1008 iter.remove(); 1009 } else { 1010 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1011 } 1012 } 1013 1014 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1015 final int sleepMs = getSleepForPage(page); 1016 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1017 new AsyncTaskCallback() { 1018 @Override 1019 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1020 try { 1021 try { 1022 Thread.sleep(sleepMs); 1023 } catch (Exception e) {} 1024 loadWidgetPreviewsInBackground(task, data); 1025 } finally { 1026 if (task.isCancelled()) { 1027 data.cleanup(true); 1028 } 1029 } 1030 } 1031 }, 1032 new AsyncTaskCallback() { 1033 @Override 1034 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1035 mRunningTasks.remove(task); 1036 if (task.isCancelled()) return; 1037 // do cleanup inside onSyncWidgetPageItems 1038 onSyncWidgetPageItems(data); 1039 } 1040 }); 1041 1042 // Ensure that the task is appropriately prioritized and runs in parallel 1043 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1044 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1045 t.setThreadPriority(getThreadPriorityForPage(page)); 1046 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1047 mRunningTasks.add(t); 1048 } 1049 1050 /* 1051 * Widgets PagedView implementation 1052 */ 1053 private void setupPage(PagedViewGridLayout layout) { 1054 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1055 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1056 1057 // Note: We force a measure here to get around the fact that when we do layout calculations 1058 // immediately after syncing, we don't have a proper width. 1059 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1060 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1061 layout.setMinimumWidth(getPageContentWidth()); 1062 layout.measure(widthSpec, heightSpec); 1063 } 1064 1065 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1066 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 1067 } 1068 1069 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1070 float scale, int multiplyColor) { 1071 if (bitmap != null) { 1072 Canvas c = new Canvas(bitmap); 1073 c.scale(scale, scale); 1074 Rect oldBounds = d.copyBounds(); 1075 d.setBounds(x, y, x + w, y + h); 1076 d.draw(c); 1077 d.setBounds(oldBounds); // Restore the bounds 1078 c.setBitmap(null); 1079 } 1080 } 1081 private Bitmap getShortcutPreview(ResolveInfo info) { 1082 // Render the background 1083 int offset = 0; 1084 int bitmapSize = mAppIconSize; 1085 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1086 1087 // Render the icon 1088 Drawable icon = mIconCache.getFullResIcon(info); 1089 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1090 return preview; 1091 } 1092 1093 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1094 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1095 // Load the preview image if possible 1096 String packageName = provider.getPackageName(); 1097 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1098 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1099 1100 Drawable drawable = null; 1101 if (previewImage != 0) { 1102 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1103 if (drawable == null) { 1104 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1105 Integer.toHexString(previewImage) + " for provider: " + provider); 1106 } 1107 } 1108 1109 int bitmapWidth; 1110 int bitmapHeight; 1111 boolean widgetPreviewExists = (drawable != null); 1112 if (widgetPreviewExists) { 1113 bitmapWidth = drawable.getIntrinsicWidth(); 1114 bitmapHeight = drawable.getIntrinsicHeight(); 1115 } else { 1116 if (cellHSpan < 1) cellHSpan = 1; 1117 if (cellVSpan < 1) cellVSpan = 1; 1118 // Determine the size of the bitmap for the preview image we will generate 1119 // TODO: This actually uses the apps customize cell layout params, where as we make want 1120 // the Workspace params for more accuracy. 1121 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1122 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1123 if (cellHSpan == cellVSpan) { 1124 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1125 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1126 if (cellHSpan <= 1) { 1127 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1128 } else { 1129 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1130 } 1131 } 1132 } 1133 1134 float scale = 1f; 1135 if (bitmapWidth > maxWidth) { 1136 scale = maxWidth / (float) bitmapWidth; 1137 } 1138 if (bitmapHeight * scale > maxHeight) { 1139 scale = maxHeight / (float) bitmapHeight; 1140 } 1141 if (scale != 1f) { 1142 bitmapWidth = (int) (scale * bitmapWidth); 1143 bitmapHeight = (int) (scale * bitmapHeight); 1144 } 1145 1146 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1147 1148 if (widgetPreviewExists) { 1149 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1150 } else { 1151 // Generate a preview image if we couldn't load one 1152 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1153 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1154 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1155 if (cellHSpan != 1 || cellVSpan != 1) { 1156 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1157 bitmapHeight); 1158 } 1159 1160 // Draw the icon in the top left corner 1161 try { 1162 Drawable icon = null; 1163 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1164 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1165 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1166 Resources resources = mLauncher.getResources(); 1167 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1168 1169 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1170 (int) (mAppIconSize * iconScale), 1171 (int) (mAppIconSize * iconScale)); 1172 } catch (Resources.NotFoundException e) {} 1173 } 1174 return preview; 1175 } 1176 1177 public void syncWidgetPageItems(final int page, final boolean immediate) { 1178 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1179 1180 // Calculate the dimensions of each cell we are giving to each widget 1181 final ArrayList<Object> items = new ArrayList<Object>(); 1182 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1183 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1184 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1185 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1186 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1187 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1188 1189 // Prepare the set of widgets to load previews for in the background 1190 int offset = (page - mNumAppsPages) * numItemsPerPage; 1191 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1192 items.add(mWidgets.get(i)); 1193 } 1194 1195 // Prepopulate the pages with the other widget info, and fill in the previews later 1196 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1197 layout.setColumnCount(layout.getCellCountX()); 1198 for (int i = 0; i < items.size(); ++i) { 1199 Object rawInfo = items.get(i); 1200 PendingAddItemInfo createItemInfo = null; 1201 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1202 R.layout.apps_customize_widget, layout, false); 1203 if (rawInfo instanceof AppWidgetProviderInfo) { 1204 // Fill in the widget information 1205 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1206 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1207 1208 // Determine the widget spans and min resize spans. 1209 int[] spanXY = mLauncher.getSpanForWidget(info, null); 1210 int[] size = mLauncher.getWorkspace().estimateItemSize(spanXY[0], 1211 spanXY[1], createItemInfo, true); 1212 createItemInfo.spanX = spanXY[0]; 1213 createItemInfo.spanY = spanXY[1]; 1214 int[] minSpanXY = mLauncher.getMinSpanForWidget(info, null); 1215 createItemInfo.minSpanX = minSpanXY[0]; 1216 createItemInfo.minSpanY = minSpanXY[1]; 1217 1218 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1219 widget.setTag(createItemInfo); 1220 widget.setShortPressListener(this); 1221 } else if (rawInfo instanceof ResolveInfo) { 1222 // Fill in the shortcuts information 1223 ResolveInfo info = (ResolveInfo) rawInfo; 1224 createItemInfo = new PendingAddItemInfo(); 1225 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1226 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1227 info.activityInfo.name); 1228 widget.applyFromResolveInfo(mPackageManager, info); 1229 widget.setTag(createItemInfo); 1230 } 1231 widget.setOnClickListener(this); 1232 widget.setOnLongClickListener(this); 1233 widget.setOnTouchListener(this); 1234 widget.setOnKeyListener(this); 1235 1236 // Layout each widget 1237 int ix = i % mWidgetCountX; 1238 int iy = i / mWidgetCountX; 1239 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1240 GridLayout.spec(iy, GridLayout.LEFT), 1241 GridLayout.spec(ix, GridLayout.TOP)); 1242 lp.width = cellWidth; 1243 lp.height = cellHeight; 1244 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1245 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1246 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1247 layout.addView(widget, lp); 1248 } 1249 1250 // wait until a call on onLayout to start loading, because 1251 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1252 // TODO: can we do a measure/layout immediately? 1253 layout.setOnLayoutListener(new Runnable() { 1254 public void run() { 1255 // Load the widget previews 1256 int maxPreviewWidth = cellWidth; 1257 int maxPreviewHeight = cellHeight; 1258 if (layout.getChildCount() > 0) { 1259 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1260 int[] maxSize = w.getPreviewSize(); 1261 maxPreviewWidth = maxSize[0]; 1262 maxPreviewHeight = maxSize[1]; 1263 } 1264 if (immediate) { 1265 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1266 maxPreviewWidth, maxPreviewHeight, null, null); 1267 loadWidgetPreviewsInBackground(null, data); 1268 onSyncWidgetPageItems(data); 1269 } else { 1270 prepareLoadWidgetPreviewsTask(page, items, 1271 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1272 } 1273 } 1274 }); 1275 } 1276 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1277 AsyncTaskPageData data) { 1278 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1279 // previews synchronously 1280 if (task != null) { 1281 // Ensure that this task starts running at the correct priority 1282 task.syncThreadPriority(); 1283 } 1284 1285 // Load each of the widget/shortcut previews 1286 ArrayList<Object> items = data.items; 1287 ArrayList<Bitmap> images = data.generatedImages; 1288 int count = items.size(); 1289 for (int i = 0; i < count; ++i) { 1290 if (task != null) { 1291 // Ensure we haven't been cancelled yet 1292 if (task.isCancelled()) break; 1293 // Before work on each item, ensure that this task is running at the correct 1294 // priority 1295 task.syncThreadPriority(); 1296 } 1297 1298 Object rawInfo = items.get(i); 1299 if (rawInfo instanceof AppWidgetProviderInfo) { 1300 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1301 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1302 1303 int maxWidth = Math.min(data.maxImageWidth, 1304 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1305 int maxHeight = Math.min(data.maxImageHeight, 1306 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1307 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1308 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1309 images.add(b); 1310 } else if (rawInfo instanceof ResolveInfo) { 1311 // Fill in the shortcuts information 1312 ResolveInfo info = (ResolveInfo) rawInfo; 1313 images.add(getShortcutPreview(info)); 1314 } 1315 } 1316 } 1317 1318 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1319 if (mInTransition) { 1320 mDeferredSyncWidgetPageItems.add(data); 1321 return; 1322 } 1323 try { 1324 int page = data.page; 1325 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1326 1327 ArrayList<Object> items = data.items; 1328 int count = items.size(); 1329 for (int i = 0; i < count; ++i) { 1330 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1331 if (widget != null) { 1332 Bitmap preview = data.generatedImages.get(i); 1333 widget.applyPreview(new FastBitmapDrawable(preview), i); 1334 } 1335 } 1336 1337 layout.createHardwareLayer(); 1338 invalidate(); 1339 1340 // Update all thread priorities 1341 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1342 while (iter.hasNext()) { 1343 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1344 int pageIndex = task.page; 1345 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1346 } 1347 } finally { 1348 data.cleanup(false); 1349 } 1350 } 1351 1352 @Override 1353 public void syncPages() { 1354 removeAllViews(); 1355 cancelAllTasks(); 1356 1357 Context context = getContext(); 1358 for (int j = 0; j < mNumWidgetPages; ++j) { 1359 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1360 mWidgetCountY); 1361 setupPage(layout); 1362 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1363 LayoutParams.MATCH_PARENT)); 1364 } 1365 1366 for (int i = 0; i < mNumAppsPages; ++i) { 1367 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1368 setupPage(layout); 1369 addView(layout); 1370 } 1371 } 1372 1373 @Override 1374 public void syncPageItems(int page, boolean immediate) { 1375 if (page < mNumAppsPages) { 1376 syncAppsPageItems(page, immediate); 1377 } else { 1378 syncWidgetPageItems(page, immediate); 1379 } 1380 } 1381 1382 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1383 // it is in the z-order. This is important to insure touch events are handled correctly. 1384 View getPageAt(int index) { 1385 return getChildAt(indexToPage(index)); 1386 } 1387 1388 @Override 1389 protected int indexToPage(int index) { 1390 return getChildCount() - index - 1; 1391 } 1392 1393 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1394 @Override 1395 protected void screenScrolled(int screenCenter) { 1396 super.screenScrolled(screenCenter); 1397 1398 for (int i = 0; i < getChildCount(); i++) { 1399 View v = getPageAt(i); 1400 if (v != null) { 1401 float scrollProgress = getScrollProgress(screenCenter, v, i); 1402 1403 float interpolatedProgress = 1404 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1405 float scale = (1 - interpolatedProgress) + 1406 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1407 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1408 1409 float alpha; 1410 1411 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1412 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1413 1 - Math.abs(scrollProgress)) : 1.0f; 1414 } else { 1415 // On large screens we need to fade the page as it nears its leftmost position 1416 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1417 } 1418 1419 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1420 int pageWidth = v.getMeasuredWidth(); 1421 int pageHeight = v.getMeasuredHeight(); 1422 1423 if (PERFORM_OVERSCROLL_ROTATION) { 1424 if (i == 0 && scrollProgress < 0) { 1425 // Overscroll to the left 1426 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1427 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1428 scale = 1.0f; 1429 alpha = 1.0f; 1430 // On the first page, we don't want the page to have any lateral motion 1431 translationX = 0; 1432 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1433 // Overscroll to the right 1434 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1435 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1436 scale = 1.0f; 1437 alpha = 1.0f; 1438 // On the last page, we don't want the page to have any lateral motion. 1439 translationX = 0; 1440 } else { 1441 v.setPivotY(pageHeight / 2.0f); 1442 v.setPivotX(pageWidth / 2.0f); 1443 v.setRotationY(0f); 1444 } 1445 } 1446 1447 v.setTranslationX(translationX); 1448 v.setScaleX(scale); 1449 v.setScaleY(scale); 1450 v.setAlpha(alpha); 1451 1452 // If the view has 0 alpha, we set it to be invisible so as to prevent 1453 // it from accepting touches 1454 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1455 v.setVisibility(INVISIBLE); 1456 } else if (v.getVisibility() != VISIBLE) { 1457 v.setVisibility(VISIBLE); 1458 } 1459 } 1460 } 1461 } 1462 1463 protected void overScroll(float amount) { 1464 acceleratedOverScroll(amount); 1465 } 1466 1467 /** 1468 * Used by the parent to get the content width to set the tab bar to 1469 * @return 1470 */ 1471 public int getPageContentWidth() { 1472 return mContentWidth; 1473 } 1474 1475 @Override 1476 protected void onPageEndMoving() { 1477 super.onPageEndMoving(); 1478 1479 // We reset the save index when we change pages so that it will be recalculated on next 1480 // rotation 1481 mSaveInstanceStateItemIndex = -1; 1482 } 1483 1484 /* 1485 * AllAppsView implementation 1486 */ 1487 @Override 1488 public void setup(Launcher launcher, DragController dragController) { 1489 mLauncher = launcher; 1490 mDragController = dragController; 1491 } 1492 @Override 1493 public void zoom(float zoom, boolean animate) { 1494 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1495 } 1496 @Override 1497 public boolean isVisible() { 1498 return (getVisibility() == VISIBLE); 1499 } 1500 @Override 1501 public boolean isAnimating() { 1502 return false; 1503 } 1504 @Override 1505 public void setApps(ArrayList<ApplicationInfo> list) { 1506 mApps = list; 1507 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1508 updatePageCounts(); 1509 1510 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1511 // request a layout to do this test and invalidate the page data when ready. 1512 if (testDataReady()) requestLayout(); 1513 } 1514 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1515 // We add it in place, in alphabetical order 1516 int count = list.size(); 1517 for (int i = 0; i < count; ++i) { 1518 ApplicationInfo info = list.get(i); 1519 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1520 if (index < 0) { 1521 mApps.add(-(index + 1), info); 1522 } 1523 } 1524 } 1525 @Override 1526 public void addApps(ArrayList<ApplicationInfo> list) { 1527 addAppsWithoutInvalidate(list); 1528 updatePageCounts(); 1529 invalidatePageData(); 1530 } 1531 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1532 ComponentName removeComponent = item.intent.getComponent(); 1533 int length = list.size(); 1534 for (int i = 0; i < length; ++i) { 1535 ApplicationInfo info = list.get(i); 1536 if (info.intent.getComponent().equals(removeComponent)) { 1537 return i; 1538 } 1539 } 1540 return -1; 1541 } 1542 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1543 // loop through all the apps and remove apps that have the same component 1544 int length = list.size(); 1545 for (int i = 0; i < length; ++i) { 1546 ApplicationInfo info = list.get(i); 1547 int removeIndex = findAppByComponent(mApps, info); 1548 if (removeIndex > -1) { 1549 mApps.remove(removeIndex); 1550 } 1551 } 1552 } 1553 @Override 1554 public void removeApps(ArrayList<ApplicationInfo> list) { 1555 removeAppsWithoutInvalidate(list); 1556 updatePageCounts(); 1557 invalidatePageData(); 1558 } 1559 @Override 1560 public void updateApps(ArrayList<ApplicationInfo> list) { 1561 // We remove and re-add the updated applications list because it's properties may have 1562 // changed (ie. the title), and this will ensure that the items will be in their proper 1563 // place in the list. 1564 removeAppsWithoutInvalidate(list); 1565 addAppsWithoutInvalidate(list); 1566 updatePageCounts(); 1567 1568 invalidatePageData(); 1569 } 1570 1571 @Override 1572 public void reset() { 1573 // If we have reset, then we should not continue to restore the previous state 1574 mSaveInstanceStateItemIndex = -1; 1575 1576 AppsCustomizeTabHost tabHost = getTabHost(); 1577 String tag = tabHost.getCurrentTabTag(); 1578 if (tag != null) { 1579 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1580 tabHost.setCurrentTabFromContent(ContentType.Applications); 1581 } 1582 } 1583 1584 if (mCurrentPage != 0) { 1585 invalidatePageData(0); 1586 } 1587 } 1588 1589 private AppsCustomizeTabHost getTabHost() { 1590 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1591 } 1592 1593 @Override 1594 public void dumpState() { 1595 // TODO: Dump information related to current list of Applications, Widgets, etc. 1596 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1597 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1598 } 1599 1600 private void dumpAppWidgetProviderInfoList(String tag, String label, 1601 ArrayList<Object> list) { 1602 Log.d(tag, label + " size=" + list.size()); 1603 for (Object i: list) { 1604 if (i instanceof AppWidgetProviderInfo) { 1605 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1606 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1607 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1608 + " initialLayout=" + info.initialLayout 1609 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1610 } else if (i instanceof ResolveInfo) { 1611 ResolveInfo info = (ResolveInfo) i; 1612 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1613 + info.icon); 1614 } 1615 } 1616 } 1617 1618 @Override 1619 public void surrender() { 1620 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1621 // should stop this now. 1622 1623 // Stop all background tasks 1624 cancelAllTasks(); 1625 } 1626 1627 @Override 1628 public void iconPressed(PagedViewIcon icon) { 1629 // Reset the previously pressed icon and store a reference to the pressed icon so that 1630 // we can reset it on return to Launcher (in Launcher.onResume()) 1631 if (mPressedIcon != null) { 1632 mPressedIcon.resetDrawableState(); 1633 } 1634 mPressedIcon = icon; 1635 } 1636 1637 public void resetDrawableState() { 1638 if (mPressedIcon != null) { 1639 mPressedIcon.resetDrawableState(); 1640 mPressedIcon = null; 1641 } 1642 } 1643 1644 /* 1645 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1646 * widget previews in the background with the AsyncTasks. 1647 */ 1648 final static int sLookBehindPageCount = 2; 1649 final static int sLookAheadPageCount = 2; 1650 protected int getAssociatedLowerPageBound(int page) { 1651 final int count = getChildCount(); 1652 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1653 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1654 return windowMinIndex; 1655 } 1656 protected int getAssociatedUpperPageBound(int page) { 1657 final int count = getChildCount(); 1658 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1659 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1660 count - 1); 1661 return windowMaxIndex; 1662 } 1663 1664 @Override 1665 protected String getCurrentPageDescription() { 1666 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1667 int stringId = R.string.default_scroll_format; 1668 int count = 0; 1669 1670 if (page < mNumAppsPages) { 1671 stringId = R.string.apps_customize_apps_scroll_format; 1672 count = mNumAppsPages; 1673 } else { 1674 page -= mNumAppsPages; 1675 stringId = R.string.apps_customize_widgets_scroll_format; 1676 count = mNumWidgetPages; 1677 } 1678 1679 return String.format(mContext.getString(stringId), page + 1, count); 1680 } 1681} 1682