AppsCustomizePagedView.java revision 043f2af567178b82b0b41f12d379e7dd12da2936
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.BitmapFactory; 36import android.graphics.Canvas; 37import android.graphics.MaskFilter; 38import android.graphics.Matrix; 39import android.graphics.Paint; 40import android.graphics.Rect; 41import android.graphics.RectF; 42import android.graphics.TableMaskFilter; 43import android.graphics.drawable.Drawable; 44import android.os.AsyncTask; 45import android.os.Process; 46import android.util.AttributeSet; 47import android.util.Log; 48import android.view.Gravity; 49import android.view.KeyEvent; 50import android.view.LayoutInflater; 51import android.view.MotionEvent; 52import android.view.View; 53import android.view.ViewConfiguration; 54import android.view.ViewGroup; 55import android.view.animation.AccelerateInterpolator; 56import android.view.animation.DecelerateInterpolator; 57import android.widget.GridLayout; 58import android.widget.ImageView; 59import android.widget.Toast; 60 61import com.android.launcher.R; 62import com.android.launcher2.DropTarget.DragObject; 63 64import java.util.ArrayList; 65import java.util.Collections; 66import java.util.Iterator; 67import java.util.List; 68 69/** 70 * A simple callback interface which also provides the results of the task. 71 */ 72interface AsyncTaskCallback { 73 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 74} 75 76/** 77 * The data needed to perform either of the custom AsyncTasks. 78 */ 79class AsyncTaskPageData { 80 enum Type { 81 LoadWidgetPreviewData 82 } 83 84 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 85 AsyncTaskCallback postR) { 86 page = p; 87 items = l; 88 sourceImages = si; 89 generatedImages = new ArrayList<Bitmap>(); 90 maxImageWidth = maxImageHeight = -1; 91 doInBackgroundCallback = bgR; 92 postExecuteCallback = postR; 93 } 94 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 95 AsyncTaskCallback postR) { 96 page = p; 97 items = l; 98 generatedImages = new ArrayList<Bitmap>(); 99 maxImageWidth = cw; 100 maxImageHeight = ch; 101 doInBackgroundCallback = bgR; 102 postExecuteCallback = postR; 103 } 104 void cleanup(boolean cancelled) { 105 // Clean up any references to source/generated bitmaps 106 if (sourceImages != null) { 107 if (cancelled) { 108 for (Bitmap b : sourceImages) { 109 b.recycle(); 110 } 111 } 112 sourceImages.clear(); 113 } 114 if (generatedImages != null) { 115 if (cancelled) { 116 for (Bitmap b : generatedImages) { 117 b.recycle(); 118 } 119 } 120 generatedImages.clear(); 121 } 122 } 123 int page; 124 ArrayList<Object> items; 125 ArrayList<Bitmap> sourceImages; 126 ArrayList<Bitmap> generatedImages; 127 int maxImageWidth; 128 int maxImageHeight; 129 AsyncTaskCallback doInBackgroundCallback; 130 AsyncTaskCallback postExecuteCallback; 131} 132 133/** 134 * A generic template for an async task used in AppsCustomize. 135 */ 136class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 137 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 138 page = p; 139 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 140 dataType = ty; 141 } 142 @Override 143 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 144 if (params.length != 1) return null; 145 // Load each of the widget previews in the background 146 params[0].doInBackgroundCallback.run(this, params[0]); 147 return params[0]; 148 } 149 @Override 150 protected void onPostExecute(AsyncTaskPageData result) { 151 // All the widget previews are loaded, so we can just callback to inflate the page 152 result.postExecuteCallback.run(this, result); 153 } 154 155 void setThreadPriority(int p) { 156 threadPriority = p; 157 } 158 void syncThreadPriority() { 159 Process.setThreadPriority(threadPriority); 160 } 161 162 // The page that this async task is associated with 163 AsyncTaskPageData.Type dataType; 164 int page; 165 int threadPriority; 166} 167 168/** 169 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 170 */ 171public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 172 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource, 173 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener { 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 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 245 super(context, attrs); 246 mLayoutInflater = LayoutInflater.from(context); 247 mPackageManager = context.getPackageManager(); 248 mApps = new ArrayList<ApplicationInfo>(); 249 mWidgets = new ArrayList<Object>(); 250 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 251 mCanvas = new Canvas(); 252 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 253 254 // Save the default widget preview background 255 Resources resources = context.getResources(); 256 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 257 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 258 259 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 260 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 261 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 262 mWidgetWidthGap = 263 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 264 mWidgetHeightGap = 265 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 266 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 267 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 268 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 269 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 270 a.recycle(); 271 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 272 273 // The padding on the non-matched dimension for the default widget preview icons 274 // (top + bottom) 275 mWidgetPreviewIconPaddedDimension = 276 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 277 mFadeInAdjacentScreens = false; 278 } 279 280 @Override 281 protected void init() { 282 super.init(); 283 mCenterPagesVertically = false; 284 285 Context context = getContext(); 286 Resources r = context.getResources(); 287 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 288 } 289 290 @Override 291 protected void onUnhandledTap(MotionEvent ev) { 292 if (LauncherApplication.isScreenLarge()) { 293 // Dismiss AppsCustomize if we tap 294 mLauncher.showWorkspace(true); 295 } 296 } 297 298 /** Returns the item index of the center item on this page so that we can restore to this 299 * item index when we rotate. */ 300 private int getMiddleComponentIndexOnCurrentPage() { 301 int i = -1; 302 if (getPageCount() > 0) { 303 int currentPage = getCurrentPage(); 304 if (currentPage < mNumAppsPages) { 305 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 306 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 307 int numItemsPerPage = mCellCountX * mCellCountY; 308 int childCount = childrenLayout.getChildCount(); 309 if (childCount > 0) { 310 i = (currentPage * numItemsPerPage) + (childCount / 2); 311 } 312 } else { 313 int numApps = mApps.size(); 314 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 315 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 316 int childCount = layout.getChildCount(); 317 if (childCount > 0) { 318 i = numApps + 319 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 320 } 321 } 322 } 323 return i; 324 } 325 326 /** Get the index of the item to restore to if we need to restore the current page. */ 327 int getSaveInstanceStateIndex() { 328 if (mSaveInstanceStateItemIndex == -1) { 329 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 330 } 331 return mSaveInstanceStateItemIndex; 332 } 333 334 /** Returns the page in the current orientation which is expected to contain the specified 335 * item index. */ 336 int getPageForComponent(int index) { 337 if (index < 0) return 0; 338 339 if (index < mApps.size()) { 340 int numItemsPerPage = mCellCountX * mCellCountY; 341 return (index / numItemsPerPage); 342 } else { 343 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 344 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 345 } 346 } 347 348 /** 349 * This differs from isDataReady as this is the test done if isDataReady is not set. 350 */ 351 private boolean testDataReady() { 352 // We only do this test once, and we default to the Applications page, so we only really 353 // have to wait for there to be apps. 354 // TODO: What if one of them is validly empty 355 return !mApps.isEmpty() && !mWidgets.isEmpty(); 356 } 357 358 /** Restores the page for an item at the specified index */ 359 void restorePageForIndex(int index) { 360 if (index < 0) return; 361 mSaveInstanceStateItemIndex = index; 362 } 363 364 private void updatePageCounts() { 365 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 366 (float) (mWidgetCountX * mWidgetCountY)); 367 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 368 } 369 370 protected void onDataReady(int width, int height) { 371 // Note that we transpose the counts in portrait so that we get a similar layout 372 boolean isLandscape = getResources().getConfiguration().orientation == 373 Configuration.ORIENTATION_LANDSCAPE; 374 int maxCellCountX = Integer.MAX_VALUE; 375 int maxCellCountY = Integer.MAX_VALUE; 376 if (LauncherApplication.isScreenLarge()) { 377 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 378 LauncherModel.getCellCountY()); 379 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 380 LauncherModel.getCellCountX()); 381 } 382 if (mMaxAppCellCountX > -1) { 383 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 384 } 385 if (mMaxAppCellCountY > -1) { 386 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 387 } 388 389 // Now that the data is ready, we can calculate the content width, the number of cells to 390 // use for each page 391 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 392 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 393 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 394 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 395 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 396 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 397 updatePageCounts(); 398 399 // Force a measure to update recalculate the gaps 400 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 401 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 402 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 403 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 404 405 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 406 final boolean hostIsTransitioning = host.isTransitioning(); 407 408 // Restore the page 409 int page = getPageForComponent(mSaveInstanceStateItemIndex); 410 invalidatePageData(Math.max(0, page), hostIsTransitioning); 411 412 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 413 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 414 // returned while animating) 415 if (!hostIsTransitioning) { 416 post(new Runnable() { 417 @Override 418 public void run() { 419 showAllAppsCling(); 420 } 421 }); 422 } 423 } 424 425 void showAllAppsCling() { 426 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 427 mHasShownAllAppsCling = true; 428 // Calculate the position for the cling punch through 429 int[] offset = new int[2]; 430 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 431 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 432 // PagedViews are centered horizontally but top aligned 433 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 434 offset[0]; 435 pos[1] += offset[1]; 436 mLauncher.showFirstRunAllAppsCling(pos); 437 } 438 } 439 440 @Override 441 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 442 int width = MeasureSpec.getSize(widthMeasureSpec); 443 int height = MeasureSpec.getSize(heightMeasureSpec); 444 if (!isDataReady()) { 445 if (testDataReady()) { 446 setDataIsReady(); 447 setMeasuredDimension(width, height); 448 onDataReady(width, height); 449 } 450 } 451 452 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 453 } 454 455 public void onPackagesUpdated() { 456 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 457 // by a broadcast receiver, and in order for it to work correctly, we need to know that 458 // the AppWidgetService has already received and processed the same broadcast. Since there 459 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 460 // we should have a more precise way of ensuring the AppWidgetService is up to date. 461 postDelayed(new Runnable() { 462 public void run() { 463 updatePackages(); 464 } 465 }, 500); 466 } 467 468 public void updatePackages() { 469 // Get the list of widgets and shortcuts 470 boolean wasEmpty = mWidgets.isEmpty(); 471 mWidgets.clear(); 472 List<AppWidgetProviderInfo> widgets = 473 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 474 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 475 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 476 for (AppWidgetProviderInfo widget : widgets) { 477 if (widget.minWidth > 0 && widget.minHeight > 0) { 478 mWidgets.add(widget); 479 } else { 480 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 481 widget.minWidth + ", " + widget.minHeight + ")"); 482 } 483 } 484 mWidgets.addAll(shortcuts); 485 Collections.sort(mWidgets, 486 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 487 updatePageCounts(); 488 489 if (wasEmpty) { 490 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 491 // a layout to do this test and invalidate the page data when ready. 492 if (testDataReady()) requestLayout(); 493 } else { 494 cancelAllTasks(); 495 invalidatePageData(); 496 } 497 } 498 499 @Override 500 public void onClick(View v) { 501 // When we have exited all apps or are in transition, disregard clicks 502 if (!mLauncher.isAllAppsCustomizeOpen() || 503 mLauncher.getWorkspace().isSwitchingState()) return; 504 505 if (v instanceof PagedViewIcon) { 506 // Animate some feedback to the click 507 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 508 mLauncher.startActivitySafely(appInfo.intent, appInfo); 509 510 // Lock the drawable state to pressed until we return to Launcher 511 if (mPressedIcon != null) { 512 mPressedIcon.lockDrawableState(); 513 } 514 } else if (v instanceof PagedViewWidget) { 515 // Let the user know that they have to long press to add a widget 516 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 517 Toast.LENGTH_SHORT).show(); 518 519 // Create a little animation to show that the widget can move 520 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 521 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 522 AnimatorSet bounce = new AnimatorSet(); 523 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 524 tyuAnim.setDuration(125); 525 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 526 tydAnim.setDuration(100); 527 bounce.play(tyuAnim).before(tydAnim); 528 bounce.setInterpolator(new AccelerateInterpolator()); 529 bounce.start(); 530 } 531 } 532 533 public boolean onKey(View v, int keyCode, KeyEvent event) { 534 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 535 } 536 537 /* 538 * PagedViewWithDraggableItems implementation 539 */ 540 @Override 541 protected void determineDraggingStart(android.view.MotionEvent ev) { 542 // Disable dragging by pulling an app down for now. 543 } 544 545 private void beginDraggingApplication(View v) { 546 mLauncher.getWorkspace().onDragStartedWithItem(v); 547 mLauncher.getWorkspace().beginDragShared(v, this); 548 } 549 550 private void loadWidgetInBackground(final PendingAddWidgetInfo info) { 551 final AppWidgetProviderInfo pInfo = info.info; 552 if (pInfo.configure != null) { 553 return; 554 } 555 556 mBindWidgetRunnable = new Runnable() { 557 @Override 558 public void run() { 559 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 560 AppWidgetManager.getInstance(mLauncher).bindAppWidgetId(mWidgetLoadingId, 561 info.componentName); 562 mWidgetCleanupState = WIDGET_BOUND; 563 } 564 }; 565 post(mBindWidgetRunnable); 566 567 mInflateWidgetRunnable = new Runnable() { 568 @Override 569 public void run() { 570 AppWidgetHostView hostView = 571 mLauncher.getAppWidgetHost().createView(mContext, mWidgetLoadingId, pInfo); 572 info.boundWidget = hostView; 573 mWidgetCleanupState = WIDGET_INFLATED; 574 hostView.setVisibility(INVISIBLE); 575 mLauncher.getDragLayer().addView(hostView); 576 } 577 }; 578 post(mInflateWidgetRunnable); 579 } 580 581 @Override 582 public void onShortPress(View v) { 583 // We are anticipating a long press, and we use this time to load bind and instantiate 584 // the widget. This will need to be cleaned up if it turns out no long press occurs. 585 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 586 loadWidgetInBackground(mCreateWidgetInfo); 587 } 588 589 private void cleanupWidgetPreloading() { 590 PendingAddWidgetInfo info = mCreateWidgetInfo; 591 mCreateWidgetInfo = null; 592 if (mWidgetCleanupState >= 0 && mWidgetLoadingId != -1) { 593 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 594 } 595 if (mWidgetCleanupState == WIDGET_BOUND) { 596 removeCallbacks(mInflateWidgetRunnable); 597 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 598 AppWidgetHostView widget = info.boundWidget; 599 int widgetId = widget.getAppWidgetId(); 600 mLauncher.getAppWidgetHost().deleteAppWidgetId(widgetId); 601 mLauncher.getDragLayer().removeView(widget); 602 } 603 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 604 mWidgetLoadingId = -1; 605 } 606 607 @Override 608 public void cleanUpShortPress(View v) { 609 if (!mDraggingWidget) { 610 cleanupWidgetPreloading(); 611 } 612 } 613 614 private void beginDraggingWidget(View v) { 615 mDraggingWidget = true; 616 // Get the widget preview as the drag representation 617 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 618 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 619 620 // Compose the drag image 621 Bitmap preview; 622 Bitmap outline; 623 float scale = 1f; 624 if (createItemInfo instanceof PendingAddWidgetInfo) { 625 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 626 createItemInfo = createWidgetInfo; 627 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 628 int[] size = mLauncher.getWorkspace().estimateItemSize(spanXY[0], 629 spanXY[1], createWidgetInfo, true); 630 createItemInfo.spanX = spanXY[0]; 631 createItemInfo.spanY = spanXY[1]; 632 int[] minSpanXY = mLauncher.getMinSpanForWidget(createWidgetInfo, null); 633 createWidgetInfo.minSpanX = minSpanXY[0]; 634 createWidgetInfo.minSpanY = minSpanXY[1]; 635 636 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 637 float minScale = 1.25f; 638 int minWidth, minHeight; 639 minWidth = Math.max((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 640 minHeight = Math.max((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 641 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 642 createWidgetInfo.icon, spanXY[0], spanXY[1], minWidth, minHeight); 643 644 // Determine the image view drawable scale relative to the preview 645 float[] mv = new float[9]; 646 Matrix m = new Matrix(); 647 m.setRectToRect( 648 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 649 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 650 (float) previewDrawable.getIntrinsicHeight()), 651 Matrix.ScaleToFit.START); 652 m.getValues(mv); 653 scale = (float) mv[0]; 654 } else { 655 // Workaround for the fact that we don't keep the original ResolveInfo associated with 656 // the shortcut around. To get the icon, we just render the preview image (which has 657 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 658 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 659 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 660 Drawable d = image.getDrawable(); 661 mCanvas.setBitmap(preview); 662 d.draw(mCanvas); 663 mCanvas.setBitmap(null); 664 createItemInfo.spanX = createItemInfo.spanY = 1; 665 } 666 667 // We use a custom alpha clip table for the default widget previews 668 Paint alphaClipPaint = null; 669 if (createItemInfo instanceof PendingAddWidgetInfo) { 670 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 671 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 672 alphaClipPaint = new Paint(); 673 alphaClipPaint.setMaskFilter(alphaClipTable); 674 } 675 } 676 677 // Save the preview for the outline generation, then dim the preview 678 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 679 false); 680 681 // Start the drag 682 alphaClipPaint = null; 683 mLauncher.lockScreenOrientationOnLargeUI(); 684 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 685 mDragController.startDrag(image, preview, this, createItemInfo, 686 DragController.DRAG_ACTION_COPY, null, scale); 687 outline.recycle(); 688 preview.recycle(); 689 } 690 691 @Override 692 protected boolean beginDragging(final View v) { 693 if (!super.beginDragging(v)) return false; 694 695 if (v instanceof PagedViewIcon) { 696 beginDraggingApplication(v); 697 } else if (v instanceof PagedViewWidget) { 698 beginDraggingWidget(v); 699 } 700 701 // We delay entering spring-loaded mode slightly to make sure the UI 702 // thready is free of any work. 703 postDelayed(new Runnable() { 704 @Override 705 public void run() { 706 // We don't enter spring-loaded mode if the drag has been cancelled 707 if (mLauncher.getDragController().isDragging()) { 708 // Dismiss the cling 709 mLauncher.dismissAllAppsCling(null); 710 711 // Reset the alpha on the dragged icon before we drag 712 resetDrawableState(); 713 714 // Go into spring loaded mode (must happen before we startDrag()) 715 mLauncher.enterSpringLoadedDragMode(); 716 } 717 } 718 }, 150); 719 720 return true; 721 } 722 723 private void endDragging(View target, boolean success) { 724 mLauncher.getWorkspace().onDragStopped(success); 725 if (!success || (target != mLauncher.getWorkspace() && 726 !(target instanceof DeleteDropTarget))) { 727 // Exit spring loaded mode if we have not successfully dropped or have not handled the 728 // drop in Workspace 729 mLauncher.exitSpringLoadedDragMode(); 730 } 731 mLauncher.unlockScreenOrientationOnLargeUI(); 732 } 733 734 @Override 735 public void onDropCompleted(View target, DragObject d, boolean success) { 736 endDragging(target, success); 737 738 // Display an error message if the drag failed due to there not being enough space on the 739 // target layout we were dropping on. 740 if (!success) { 741 boolean showOutOfSpaceMessage = false; 742 if (target instanceof Workspace) { 743 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 744 Workspace workspace = (Workspace) target; 745 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 746 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 747 if (layout != null) { 748 layout.calculateSpans(itemInfo); 749 showOutOfSpaceMessage = 750 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 751 } 752 } 753 if (showOutOfSpaceMessage) { 754 mLauncher.showOutOfSpaceMessage(); 755 } 756 757 d.deferDragViewCleanupPostAnimation = false; 758 cleanupWidgetPreloading(); 759 } 760 mDraggingWidget = false; 761 } 762 763 public boolean supportsFlingToDelete() { 764 return false; 765 } 766 767 @Override 768 protected void onDetachedFromWindow() { 769 super.onDetachedFromWindow(); 770 cancelAllTasks(); 771 } 772 773 public void clearAllWidgetPages() { 774 cancelAllTasks(); 775 int count = getChildCount(); 776 for (int i = 0; i < count; i++) { 777 View v = getPageAt(i); 778 if (v instanceof PagedViewGridLayout) { 779 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 780 mDirtyPageContent.set(i, true); 781 } 782 } 783 } 784 785 private void cancelAllTasks() { 786 // Clean up all the async tasks 787 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 788 while (iter.hasNext()) { 789 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 790 task.cancel(false); 791 iter.remove(); 792 } 793 } 794 795 public void setContentType(ContentType type) { 796 if (type == ContentType.Widgets) { 797 invalidatePageData(mNumAppsPages, true); 798 } else if (type == ContentType.Applications) { 799 invalidatePageData(0, true); 800 } 801 } 802 803 protected void snapToPage(int whichPage, int delta, int duration) { 804 super.snapToPage(whichPage, delta, duration); 805 updateCurrentTab(whichPage); 806 807 // Update the thread priorities given the direction lookahead 808 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 809 while (iter.hasNext()) { 810 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 811 int pageIndex = task.page + mNumAppsPages; 812 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 813 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 814 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 815 } else { 816 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 817 } 818 } 819 } 820 821 private void updateCurrentTab(int currentPage) { 822 AppsCustomizeTabHost tabHost = getTabHost(); 823 if (tabHost != null) { 824 String tag = tabHost.getCurrentTabTag(); 825 if (tag != null) { 826 if (currentPage >= mNumAppsPages && 827 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 828 tabHost.setCurrentTabFromContent(ContentType.Widgets); 829 } else if (currentPage < mNumAppsPages && 830 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 831 tabHost.setCurrentTabFromContent(ContentType.Applications); 832 } 833 } 834 } 835 } 836 837 /* 838 * Apps PagedView implementation 839 */ 840 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 841 int childCount = layout.getChildCount(); 842 for (int i = 0; i < childCount; ++i) { 843 layout.getChildAt(i).setVisibility(visibility); 844 } 845 } 846 private void setupPage(PagedViewCellLayout layout) { 847 layout.setCellCount(mCellCountX, mCellCountY); 848 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 849 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 850 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 851 852 // Note: We force a measure here to get around the fact that when we do layout calculations 853 // immediately after syncing, we don't have a proper width. That said, we already know the 854 // expected page width, so we can actually optimize by hiding all the TextView-based 855 // children that are expensive to measure, and let that happen naturally later. 856 setVisibilityOnChildren(layout, View.GONE); 857 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 858 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 859 layout.setMinimumWidth(getPageContentWidth()); 860 layout.measure(widthSpec, heightSpec); 861 setVisibilityOnChildren(layout, View.VISIBLE); 862 } 863 864 public void syncAppsPageItems(int page, boolean immediate) { 865 // ensure that we have the right number of items on the pages 866 int numCells = mCellCountX * mCellCountY; 867 int startIndex = page * numCells; 868 int endIndex = Math.min(startIndex + numCells, mApps.size()); 869 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 870 871 layout.removeAllViewsOnPage(); 872 ArrayList<Object> items = new ArrayList<Object>(); 873 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 874 for (int i = startIndex; i < endIndex; ++i) { 875 ApplicationInfo info = mApps.get(i); 876 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 877 R.layout.apps_customize_application, layout, false); 878 icon.applyFromApplicationInfo(info, true, this); 879 icon.setOnClickListener(this); 880 icon.setOnLongClickListener(this); 881 icon.setOnTouchListener(this); 882 icon.setOnKeyListener(this); 883 884 int index = i - startIndex; 885 int x = index % mCellCountX; 886 int y = index / mCellCountX; 887 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 888 889 items.add(info); 890 images.add(info.iconBitmap); 891 } 892 893 layout.createHardwareLayers(); 894 } 895 896 /** 897 * A helper to return the priority for loading of the specified widget page. 898 */ 899 private int getWidgetPageLoadPriority(int page) { 900 // If we are snapping to another page, use that index as the target page index 901 int toPage = mCurrentPage; 902 if (mNextPage > -1) { 903 toPage = mNextPage; 904 } 905 906 // We use the distance from the target page as an initial guess of priority, but if there 907 // are no pages of higher priority than the page specified, then bump up the priority of 908 // the specified page. 909 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 910 int minPageDiff = Integer.MAX_VALUE; 911 while (iter.hasNext()) { 912 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 913 minPageDiff = Math.abs(task.page + mNumAppsPages - toPage); 914 } 915 916 int rawPageDiff = Math.abs(page - toPage); 917 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 918 } 919 /** 920 * Return the appropriate thread priority for loading for a given page (we give the current 921 * page much higher priority) 922 */ 923 private int getThreadPriorityForPage(int page) { 924 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 925 int pageDiff = getWidgetPageLoadPriority(page); 926 if (pageDiff <= 0) { 927 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 928 } else if (pageDiff <= 1) { 929 return Process.THREAD_PRIORITY_LOWEST; 930 } else { 931 return Process.THREAD_PRIORITY_LOWEST; 932 } 933 } 934 private int getSleepForPage(int page) { 935 int pageDiff = getWidgetPageLoadPriority(page); 936 return Math.max(0, pageDiff * sPageSleepDelay); 937 } 938 /** 939 * Creates and executes a new AsyncTask to load a page of widget previews. 940 */ 941 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 942 int cellWidth, int cellHeight, int cellCountX) { 943 944 // Prune all tasks that are no longer needed 945 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 946 while (iter.hasNext()) { 947 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 948 int taskPage = task.page + mNumAppsPages; 949 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 950 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 951 task.cancel(false); 952 iter.remove(); 953 } else { 954 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 955 } 956 } 957 958 // We introduce a slight delay to order the loading of side pages so that we don't thrash 959 final int sleepMs = getSleepForPage(page + mNumAppsPages); 960 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 961 new AsyncTaskCallback() { 962 @Override 963 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 964 try { 965 try { 966 Thread.sleep(sleepMs); 967 } catch (Exception e) {} 968 loadWidgetPreviewsInBackground(task, data); 969 } finally { 970 if (task.isCancelled()) { 971 data.cleanup(true); 972 } 973 } 974 } 975 }, 976 new AsyncTaskCallback() { 977 @Override 978 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 979 try { 980 mRunningTasks.remove(task); 981 if (task.isCancelled()) return; 982 onSyncWidgetPageItems(data); 983 } finally { 984 data.cleanup(task.isCancelled()); 985 } 986 } 987 }); 988 989 // Ensure that the task is appropriately prioritized and runs in parallel 990 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 991 AsyncTaskPageData.Type.LoadWidgetPreviewData); 992 t.setThreadPriority(getThreadPriorityForPage(page + mNumAppsPages)); 993 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 994 mRunningTasks.add(t); 995 } 996 997 /* 998 * Widgets PagedView implementation 999 */ 1000 private void setupPage(PagedViewGridLayout layout) { 1001 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1002 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1003 1004 // Note: We force a measure here to get around the fact that when we do layout calculations 1005 // immediately after syncing, we don't have a proper width. 1006 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1007 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1008 layout.setMinimumWidth(getPageContentWidth()); 1009 layout.measure(widthSpec, heightSpec); 1010 } 1011 1012 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1013 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 1014 } 1015 1016 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1017 float scale, int multiplyColor) { 1018 if (bitmap != null) { 1019 Canvas c = new Canvas(bitmap); 1020 c.scale(scale, scale); 1021 Rect oldBounds = d.copyBounds(); 1022 d.setBounds(x, y, x + w, y + h); 1023 d.draw(c); 1024 d.setBounds(oldBounds); // Restore the bounds 1025 c.setBitmap(null); 1026 } 1027 } 1028 private Bitmap getShortcutPreview(ResolveInfo info) { 1029 // Render the background 1030 int offset = 0; 1031 int bitmapSize = mAppIconSize; 1032 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 1033 1034 // Render the icon 1035 Drawable icon = mIconCache.getFullResIcon(info); 1036 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1037 return preview; 1038 } 1039 1040 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1041 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1042 // Load the preview image if possible 1043 String packageName = provider.getPackageName(); 1044 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1045 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1046 1047 Drawable drawable = null; 1048 if (previewImage != 0) { 1049 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1050 if (drawable == null) { 1051 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1052 Integer.toHexString(previewImage) + " for provider: " + provider); 1053 } 1054 } 1055 1056 int bitmapWidth; 1057 int bitmapHeight; 1058 boolean widgetPreviewExists = (drawable != null); 1059 if (widgetPreviewExists) { 1060 bitmapWidth = drawable.getIntrinsicWidth(); 1061 bitmapHeight = drawable.getIntrinsicHeight(); 1062 } else { 1063 // Determine the size of the bitmap for the preview image we will generate 1064 // TODO: This actually uses the apps customize cell layout params, where as we make want 1065 // the Workspace params for more accuracy. 1066 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1067 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1068 if (cellHSpan == cellVSpan) { 1069 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1070 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1071 if (cellHSpan <= 1) { 1072 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1073 } else { 1074 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1075 } 1076 } 1077 } 1078 1079 float scale = 1f; 1080 if (bitmapWidth > maxWidth) { 1081 scale = maxWidth / (float) bitmapWidth; 1082 } 1083 if (bitmapHeight * scale > maxHeight) { 1084 scale = maxHeight / (float) bitmapHeight; 1085 } 1086 if (scale != 1f) { 1087 bitmapWidth = (int) (scale * bitmapWidth); 1088 bitmapHeight = (int) (scale * bitmapHeight); 1089 } 1090 1091 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1092 1093 if (widgetPreviewExists) { 1094 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1095 } else { 1096 // Generate a preview image if we couldn't load one 1097 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1098 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1099 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1100 if (cellHSpan != 1 || cellVSpan != 1) { 1101 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1102 bitmapHeight); 1103 } 1104 1105 // Draw the icon in the top left corner 1106 try { 1107 Drawable icon = null; 1108 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1109 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1110 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1111 Resources resources = mLauncher.getResources(); 1112 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1113 1114 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1115 (int) (mAppIconSize * iconScale), 1116 (int) (mAppIconSize * iconScale)); 1117 } catch (Resources.NotFoundException e) {} 1118 } 1119 return preview; 1120 } 1121 1122 public void syncWidgetPageItems(final int page, final boolean immediate) { 1123 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1124 1125 // Calculate the dimensions of each cell we are giving to each widget 1126 final ArrayList<Object> items = new ArrayList<Object>(); 1127 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1128 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1129 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1130 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1131 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1132 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1133 1134 // Prepare the set of widgets to load previews for in the background 1135 int offset = page * numItemsPerPage; 1136 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1137 items.add(mWidgets.get(i)); 1138 } 1139 1140 // Prepopulate the pages with the other widget info, and fill in the previews later 1141 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1142 layout.setColumnCount(layout.getCellCountX()); 1143 for (int i = 0; i < items.size(); ++i) { 1144 Object rawInfo = items.get(i); 1145 PendingAddItemInfo createItemInfo = null; 1146 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1147 R.layout.apps_customize_widget, layout, false); 1148 if (rawInfo instanceof AppWidgetProviderInfo) { 1149 // Fill in the widget information 1150 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1151 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1152 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1153 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans); 1154 widget.setTag(createItemInfo); 1155 widget.setShortPressListener(this); 1156 } else if (rawInfo instanceof ResolveInfo) { 1157 // Fill in the shortcuts information 1158 ResolveInfo info = (ResolveInfo) rawInfo; 1159 createItemInfo = new PendingAddItemInfo(); 1160 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1161 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1162 info.activityInfo.name); 1163 widget.applyFromResolveInfo(mPackageManager, info); 1164 widget.setTag(createItemInfo); 1165 } 1166 widget.setOnClickListener(this); 1167 widget.setOnLongClickListener(this); 1168 widget.setOnTouchListener(this); 1169 widget.setOnKeyListener(this); 1170 1171 // Layout each widget 1172 int ix = i % mWidgetCountX; 1173 int iy = i / mWidgetCountX; 1174 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1175 GridLayout.spec(iy, GridLayout.LEFT), 1176 GridLayout.spec(ix, GridLayout.TOP)); 1177 lp.width = cellWidth; 1178 lp.height = cellHeight; 1179 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1180 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1181 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1182 layout.addView(widget, lp); 1183 } 1184 1185 // wait until a call on onLayout to start loading, because 1186 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1187 // TODO: can we do a measure/layout immediately? 1188 layout.setOnLayoutListener(new Runnable() { 1189 public void run() { 1190 // Load the widget previews 1191 int maxPreviewWidth = cellWidth; 1192 int maxPreviewHeight = cellHeight; 1193 if (layout.getChildCount() > 0) { 1194 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1195 int[] maxSize = w.getPreviewSize(); 1196 maxPreviewWidth = maxSize[0]; 1197 maxPreviewHeight = maxSize[1]; 1198 } 1199 if (immediate) { 1200 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1201 maxPreviewWidth, maxPreviewHeight, null, null); 1202 loadWidgetPreviewsInBackground(null, data); 1203 onSyncWidgetPageItems(data); 1204 } else { 1205 prepareLoadWidgetPreviewsTask(page, items, 1206 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1207 } 1208 } 1209 }); 1210 } 1211 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1212 AsyncTaskPageData data) { 1213 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1214 // previews synchronously 1215 if (task != null) { 1216 // Ensure that this task starts running at the correct priority 1217 task.syncThreadPriority(); 1218 } 1219 1220 // Load each of the widget/shortcut previews 1221 ArrayList<Object> items = data.items; 1222 ArrayList<Bitmap> images = data.generatedImages; 1223 int count = items.size(); 1224 for (int i = 0; i < count; ++i) { 1225 if (task != null) { 1226 // Ensure we haven't been cancelled yet 1227 if (task.isCancelled()) break; 1228 // Before work on each item, ensure that this task is running at the correct 1229 // priority 1230 task.syncThreadPriority(); 1231 } 1232 1233 Object rawInfo = items.get(i); 1234 if (rawInfo instanceof AppWidgetProviderInfo) { 1235 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1236 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1237 1238 int maxWidth = Math.min(data.maxImageWidth, 1239 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1240 int maxHeight = Math.min(data.maxImageHeight, 1241 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1242 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1243 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1244 images.add(b); 1245 } else if (rawInfo instanceof ResolveInfo) { 1246 // Fill in the shortcuts information 1247 ResolveInfo info = (ResolveInfo) rawInfo; 1248 images.add(getShortcutPreview(info)); 1249 } 1250 } 1251 } 1252 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1253 int page = data.page; 1254 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1255 1256 ArrayList<Object> items = data.items; 1257 int count = items.size(); 1258 for (int i = 0; i < count; ++i) { 1259 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1260 if (widget != null) { 1261 Bitmap preview = data.generatedImages.get(i); 1262 widget.applyPreview(new FastBitmapDrawable(preview), i); 1263 } 1264 } 1265 1266 layout.createHardwareLayer(); 1267 invalidate(); 1268 1269 // Update all thread priorities 1270 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1271 while (iter.hasNext()) { 1272 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1273 int pageIndex = task.page + mNumAppsPages; 1274 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1275 } 1276 } 1277 1278 @Override 1279 public void syncPages() { 1280 removeAllViews(); 1281 cancelAllTasks(); 1282 1283 Context context = getContext(); 1284 for (int j = 0; j < mNumWidgetPages; ++j) { 1285 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1286 mWidgetCountY); 1287 setupPage(layout); 1288 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1289 LayoutParams.MATCH_PARENT)); 1290 } 1291 1292 for (int i = 0; i < mNumAppsPages; ++i) { 1293 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1294 setupPage(layout); 1295 addView(layout); 1296 } 1297 } 1298 1299 @Override 1300 public void syncPageItems(int page, boolean immediate) { 1301 if (page < mNumAppsPages) { 1302 syncAppsPageItems(page, immediate); 1303 } else { 1304 syncWidgetPageItems(page - mNumAppsPages, immediate); 1305 } 1306 } 1307 1308 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1309 // it is in the z-order. This is important to insure touch events are handled correctly. 1310 View getPageAt(int index) { 1311 return getChildAt(getChildCount() - index - 1); 1312 } 1313 1314 @Override 1315 protected int indexToPage(int index) { 1316 return getChildCount() - index - 1; 1317 } 1318 1319 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1320 @Override 1321 protected void screenScrolled(int screenCenter) { 1322 super.screenScrolled(screenCenter); 1323 1324 for (int i = 0; i < getChildCount(); i++) { 1325 View v = getPageAt(i); 1326 if (v != null) { 1327 float scrollProgress = getScrollProgress(screenCenter, v, i); 1328 1329 float interpolatedProgress = 1330 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1331 float scale = (1 - interpolatedProgress) + 1332 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1333 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1334 1335 float alpha; 1336 1337 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1338 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1339 1 - Math.abs(scrollProgress)) : 1.0f; 1340 } else { 1341 // On large screens we need to fade the page as it nears its leftmost position 1342 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1343 } 1344 1345 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1346 int pageWidth = v.getMeasuredWidth(); 1347 int pageHeight = v.getMeasuredHeight(); 1348 1349 if (PERFORM_OVERSCROLL_ROTATION) { 1350 if (i == 0 && scrollProgress < 0) { 1351 // Overscroll to the left 1352 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1353 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1354 scale = 1.0f; 1355 alpha = 1.0f; 1356 // On the first page, we don't want the page to have any lateral motion 1357 translationX = 0; 1358 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1359 // Overscroll to the right 1360 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1361 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1362 scale = 1.0f; 1363 alpha = 1.0f; 1364 // On the last page, we don't want the page to have any lateral motion. 1365 translationX = 0; 1366 } else { 1367 v.setPivotY(pageHeight / 2.0f); 1368 v.setPivotX(pageWidth / 2.0f); 1369 v.setRotationY(0f); 1370 } 1371 } 1372 1373 v.setTranslationX(translationX); 1374 v.setScaleX(scale); 1375 v.setScaleY(scale); 1376 v.setAlpha(alpha); 1377 1378 // If the view has 0 alpha, we set it to be invisible so as to prevent 1379 // it from accepting touches 1380 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1381 v.setVisibility(INVISIBLE); 1382 } else if (v.getVisibility() != VISIBLE) { 1383 v.setVisibility(VISIBLE); 1384 } 1385 } 1386 } 1387 } 1388 1389 protected void overScroll(float amount) { 1390 acceleratedOverScroll(amount); 1391 } 1392 1393 /** 1394 * Used by the parent to get the content width to set the tab bar to 1395 * @return 1396 */ 1397 public int getPageContentWidth() { 1398 return mContentWidth; 1399 } 1400 1401 @Override 1402 protected void onPageEndMoving() { 1403 super.onPageEndMoving(); 1404 1405 // We reset the save index when we change pages so that it will be recalculated on next 1406 // rotation 1407 mSaveInstanceStateItemIndex = -1; 1408 } 1409 1410 /* 1411 * AllAppsView implementation 1412 */ 1413 @Override 1414 public void setup(Launcher launcher, DragController dragController) { 1415 mLauncher = launcher; 1416 mDragController = dragController; 1417 } 1418 @Override 1419 public void zoom(float zoom, boolean animate) { 1420 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1421 } 1422 @Override 1423 public boolean isVisible() { 1424 return (getVisibility() == VISIBLE); 1425 } 1426 @Override 1427 public boolean isAnimating() { 1428 return false; 1429 } 1430 @Override 1431 public void setApps(ArrayList<ApplicationInfo> list) { 1432 mApps = list; 1433 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1434 updatePageCounts(); 1435 1436 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1437 // request a layout to do this test and invalidate the page data when ready. 1438 if (testDataReady()) requestLayout(); 1439 } 1440 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1441 // We add it in place, in alphabetical order 1442 int count = list.size(); 1443 for (int i = 0; i < count; ++i) { 1444 ApplicationInfo info = list.get(i); 1445 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1446 if (index < 0) { 1447 mApps.add(-(index + 1), info); 1448 } 1449 } 1450 } 1451 @Override 1452 public void addApps(ArrayList<ApplicationInfo> list) { 1453 addAppsWithoutInvalidate(list); 1454 updatePageCounts(); 1455 invalidatePageData(); 1456 } 1457 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1458 ComponentName removeComponent = item.intent.getComponent(); 1459 int length = list.size(); 1460 for (int i = 0; i < length; ++i) { 1461 ApplicationInfo info = list.get(i); 1462 if (info.intent.getComponent().equals(removeComponent)) { 1463 return i; 1464 } 1465 } 1466 return -1; 1467 } 1468 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1469 // loop through all the apps and remove apps that have the same component 1470 int length = list.size(); 1471 for (int i = 0; i < length; ++i) { 1472 ApplicationInfo info = list.get(i); 1473 int removeIndex = findAppByComponent(mApps, info); 1474 if (removeIndex > -1) { 1475 mApps.remove(removeIndex); 1476 } 1477 } 1478 } 1479 @Override 1480 public void removeApps(ArrayList<ApplicationInfo> list) { 1481 removeAppsWithoutInvalidate(list); 1482 updatePageCounts(); 1483 invalidatePageData(); 1484 } 1485 @Override 1486 public void updateApps(ArrayList<ApplicationInfo> list) { 1487 // We remove and re-add the updated applications list because it's properties may have 1488 // changed (ie. the title), and this will ensure that the items will be in their proper 1489 // place in the list. 1490 removeAppsWithoutInvalidate(list); 1491 addAppsWithoutInvalidate(list); 1492 updatePageCounts(); 1493 1494 invalidatePageData(); 1495 } 1496 1497 @Override 1498 public void reset() { 1499 // If we have reset, then we should not continue to restore the previous state 1500 mSaveInstanceStateItemIndex = -1; 1501 1502 AppsCustomizeTabHost tabHost = getTabHost(); 1503 String tag = tabHost.getCurrentTabTag(); 1504 if (tag != null) { 1505 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1506 tabHost.setCurrentTabFromContent(ContentType.Applications); 1507 } 1508 } 1509 1510 if (mCurrentPage != 0) { 1511 invalidatePageData(0); 1512 } 1513 } 1514 1515 private AppsCustomizeTabHost getTabHost() { 1516 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1517 } 1518 1519 @Override 1520 public void dumpState() { 1521 // TODO: Dump information related to current list of Applications, Widgets, etc. 1522 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1523 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1524 } 1525 1526 private void dumpAppWidgetProviderInfoList(String tag, String label, 1527 ArrayList<Object> list) { 1528 Log.d(tag, label + " size=" + list.size()); 1529 for (Object i: list) { 1530 if (i instanceof AppWidgetProviderInfo) { 1531 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1532 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1533 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1534 + " initialLayout=" + info.initialLayout 1535 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1536 } else if (i instanceof ResolveInfo) { 1537 ResolveInfo info = (ResolveInfo) i; 1538 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1539 + info.icon); 1540 } 1541 } 1542 } 1543 1544 @Override 1545 public void surrender() { 1546 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1547 // should stop this now. 1548 1549 // Stop all background tasks 1550 cancelAllTasks(); 1551 } 1552 1553 @Override 1554 public void iconPressed(PagedViewIcon icon) { 1555 // Reset the previously pressed icon and store a reference to the pressed icon so that 1556 // we can reset it on return to Launcher (in Launcher.onResume()) 1557 if (mPressedIcon != null) { 1558 mPressedIcon.resetDrawableState(); 1559 } 1560 mPressedIcon = icon; 1561 } 1562 1563 public void resetDrawableState() { 1564 if (mPressedIcon != null) { 1565 mPressedIcon.resetDrawableState(); 1566 mPressedIcon = null; 1567 } 1568 } 1569 1570 /* 1571 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1572 * widget previews in the background with the AsyncTasks. 1573 */ 1574 final static int sLookBehindPageCount = 2; 1575 final static int sLookAheadPageCount = 2; 1576 protected int getAssociatedLowerPageBound(int page) { 1577 final int count = getChildCount(); 1578 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1579 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1580 return windowMinIndex; 1581 } 1582 protected int getAssociatedUpperPageBound(int page) { 1583 final int count = getChildCount(); 1584 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1585 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1586 count - 1); 1587 return windowMaxIndex; 1588 } 1589 1590 @Override 1591 protected String getCurrentPageDescription() { 1592 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1593 int stringId = R.string.default_scroll_format; 1594 int count = 0; 1595 1596 if (page < mNumAppsPages) { 1597 stringId = R.string.apps_customize_apps_scroll_format; 1598 count = mNumAppsPages; 1599 } else { 1600 page -= mNumAppsPages; 1601 stringId = R.string.apps_customize_widgets_scroll_format; 1602 count = mNumWidgetPages; 1603 } 1604 1605 return String.format(mContext.getString(stringId), page + 1, count); 1606 } 1607} 1608