AppsCustomizePagedView.java revision 7bd1bbb509f9569fa18d6b4d33242679fd98bc9b
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.Paint; 38import android.graphics.PorterDuff; 39import android.graphics.Rect; 40import android.graphics.TableMaskFilter; 41import android.graphics.drawable.Drawable; 42import android.os.AsyncTask; 43import android.os.Handler; 44import android.os.HandlerThread; 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; 241 242 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 243 super(context, attrs); 244 mLayoutInflater = LayoutInflater.from(context); 245 mPackageManager = context.getPackageManager(); 246 mApps = new ArrayList<ApplicationInfo>(); 247 mWidgets = new ArrayList<Object>(); 248 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 249 mCanvas = new Canvas(); 250 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 251 252 // Save the default widget preview background 253 Resources resources = context.getResources(); 254 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 255 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 256 257 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 258 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 259 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 260 mWidgetWidthGap = 261 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 262 mWidgetHeightGap = 263 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 264 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 265 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 266 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 267 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 268 a.recycle(); 269 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 270 271 // The padding on the non-matched dimension for the default widget preview icons 272 // (top + bottom) 273 mWidgetPreviewIconPaddedDimension = 274 (int) (mAppIconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); 275 mFadeInAdjacentScreens = false; 276 } 277 278 @Override 279 protected void init() { 280 super.init(); 281 mCenterPagesVertically = false; 282 283 Context context = getContext(); 284 Resources r = context.getResources(); 285 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 286 } 287 288 @Override 289 protected void onUnhandledTap(MotionEvent ev) { 290 if (LauncherApplication.isScreenLarge()) { 291 // Dismiss AppsCustomize if we tap 292 mLauncher.showWorkspace(true); 293 } 294 } 295 296 /** Returns the item index of the center item on this page so that we can restore to this 297 * item index when we rotate. */ 298 private int getMiddleComponentIndexOnCurrentPage() { 299 int i = -1; 300 if (getPageCount() > 0) { 301 int currentPage = getCurrentPage(); 302 if (currentPage < mNumAppsPages) { 303 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 304 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 305 int numItemsPerPage = mCellCountX * mCellCountY; 306 int childCount = childrenLayout.getChildCount(); 307 if (childCount > 0) { 308 i = (currentPage * numItemsPerPage) + (childCount / 2); 309 } 310 } else { 311 int numApps = mApps.size(); 312 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 313 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 314 int childCount = layout.getChildCount(); 315 if (childCount > 0) { 316 i = numApps + 317 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 318 } 319 } 320 } 321 return i; 322 } 323 324 /** Get the index of the item to restore to if we need to restore the current page. */ 325 int getSaveInstanceStateIndex() { 326 if (mSaveInstanceStateItemIndex == -1) { 327 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 328 } 329 return mSaveInstanceStateItemIndex; 330 } 331 332 /** Returns the page in the current orientation which is expected to contain the specified 333 * item index. */ 334 int getPageForComponent(int index) { 335 if (index < 0) return 0; 336 337 if (index < mApps.size()) { 338 int numItemsPerPage = mCellCountX * mCellCountY; 339 return (index / numItemsPerPage); 340 } else { 341 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 342 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 343 } 344 } 345 346 /** 347 * This differs from isDataReady as this is the test done if isDataReady is not set. 348 */ 349 private boolean testDataReady() { 350 // We only do this test once, and we default to the Applications page, so we only really 351 // have to wait for there to be apps. 352 // TODO: What if one of them is validly empty 353 return !mApps.isEmpty() && !mWidgets.isEmpty(); 354 } 355 356 /** Restores the page for an item at the specified index */ 357 void restorePageForIndex(int index) { 358 if (index < 0) return; 359 mSaveInstanceStateItemIndex = index; 360 } 361 362 private void updatePageCounts() { 363 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 364 (float) (mWidgetCountX * mWidgetCountY)); 365 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 366 } 367 368 protected void onDataReady(int width, int height) { 369 // Note that we transpose the counts in portrait so that we get a similar layout 370 boolean isLandscape = getResources().getConfiguration().orientation == 371 Configuration.ORIENTATION_LANDSCAPE; 372 int maxCellCountX = Integer.MAX_VALUE; 373 int maxCellCountY = Integer.MAX_VALUE; 374 if (LauncherApplication.isScreenLarge()) { 375 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 376 LauncherModel.getCellCountY()); 377 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 378 LauncherModel.getCellCountX()); 379 } 380 if (mMaxAppCellCountX > -1) { 381 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 382 } 383 if (mMaxAppCellCountY > -1) { 384 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 385 } 386 387 // Now that the data is ready, we can calculate the content width, the number of cells to 388 // use for each page 389 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 390 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 391 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 392 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 393 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 394 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 395 updatePageCounts(); 396 397 // Force a measure to update recalculate the gaps 398 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 399 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 400 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 401 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 402 403 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 404 final boolean hostIsTransitioning = host.isTransitioning(); 405 406 // Restore the page 407 int page = getPageForComponent(mSaveInstanceStateItemIndex); 408 invalidatePageData(Math.max(0, page), hostIsTransitioning); 409 410 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 411 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 412 // returned while animating) 413 if (!hostIsTransitioning) { 414 post(new Runnable() { 415 @Override 416 public void run() { 417 showAllAppsCling(); 418 } 419 }); 420 } 421 } 422 423 void showAllAppsCling() { 424 if (!mHasShownAllAppsCling && isDataReady() && testDataReady()) { 425 mHasShownAllAppsCling = true; 426 // Calculate the position for the cling punch through 427 int[] offset = new int[2]; 428 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 429 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 430 // PagedViews are centered horizontally but top aligned 431 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 432 offset[0]; 433 pos[1] += offset[1]; 434 mLauncher.showFirstRunAllAppsCling(pos); 435 } 436 } 437 438 @Override 439 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 440 int width = MeasureSpec.getSize(widthMeasureSpec); 441 int height = MeasureSpec.getSize(heightMeasureSpec); 442 if (!isDataReady()) { 443 if (testDataReady()) { 444 setDataIsReady(); 445 setMeasuredDimension(width, height); 446 onDataReady(width, height); 447 } 448 } 449 450 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 451 } 452 453 public void onPackagesUpdated() { 454 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 455 // by a broadcast receiver, and in order for it to work correctly, we need to know that 456 // the AppWidgetService has already received and processed the same broadcast. Since there 457 // is no guarantee about ordering of broadcast receipt, we just delay here. Ideally, 458 // we should have a more precise way of ensuring the AppWidgetService is up to date. 459 postDelayed(new Runnable() { 460 public void run() { 461 updatePackages(); 462 } 463 }, 500); 464 } 465 466 public void updatePackages() { 467 // Get the list of widgets and shortcuts 468 boolean wasEmpty = mWidgets.isEmpty(); 469 mWidgets.clear(); 470 List<AppWidgetProviderInfo> widgets = 471 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 472 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 473 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 474 for (AppWidgetProviderInfo widget : widgets) { 475 if (widget.minWidth > 0 && widget.minHeight > 0) { 476 mWidgets.add(widget); 477 } else { 478 Log.e(LOG_TAG, "Widget " + widget.provider + " has invalid dimensions (" + 479 widget.minWidth + ", " + widget.minHeight + ")"); 480 } 481 } 482 mWidgets.addAll(shortcuts); 483 Collections.sort(mWidgets, 484 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 485 updatePageCounts(); 486 487 if (wasEmpty) { 488 // The next layout pass will trigger data-ready if both widgets and apps are set, so request 489 // a layout to do this test and invalidate the page data when ready. 490 if (testDataReady()) requestLayout(); 491 } else { 492 cancelAllTasks(); 493 invalidatePageData(); 494 } 495 } 496 497 @Override 498 public void onClick(View v) { 499 // When we have exited all apps or are in transition, disregard clicks 500 if (!mLauncher.isAllAppsCustomizeOpen() || 501 mLauncher.getWorkspace().isSwitchingState()) return; 502 503 if (v instanceof PagedViewIcon) { 504 // Animate some feedback to the click 505 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 506 mLauncher.startActivitySafely(appInfo.intent, appInfo); 507 508 // Lock the drawable state to pressed until we return to Launcher 509 if (mPressedIcon != null) { 510 mPressedIcon.lockDrawableState(); 511 } 512 } else if (v instanceof PagedViewWidget) { 513 // Let the user know that they have to long press to add a widget 514 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 515 Toast.LENGTH_SHORT).show(); 516 517 // Create a little animation to show that the widget can move 518 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 519 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 520 AnimatorSet bounce = new AnimatorSet(); 521 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 522 tyuAnim.setDuration(125); 523 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 524 tydAnim.setDuration(100); 525 bounce.play(tyuAnim).before(tydAnim); 526 bounce.setInterpolator(new AccelerateInterpolator()); 527 bounce.start(); 528 } 529 } 530 531 public boolean onKey(View v, int keyCode, KeyEvent event) { 532 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 533 } 534 535 /* 536 * PagedViewWithDraggableItems implementation 537 */ 538 @Override 539 protected void determineDraggingStart(android.view.MotionEvent ev) { 540 // Disable dragging by pulling an app down for now. 541 } 542 543 private void beginDraggingApplication(View v) { 544 mLauncher.getWorkspace().onDragStartedWithItem(v); 545 mLauncher.getWorkspace().beginDragShared(v, this); 546 } 547 548 private void loadWidgetInBackground(final PendingAddWidgetInfo info) { 549 final AppWidgetProviderInfo pInfo = info.info; 550 if (pInfo.configure != null) { 551 return; 552 } 553 554 mBindWidgetRunnable = new Runnable() { 555 @Override 556 public void run() { 557 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 558 AppWidgetManager.getInstance(mLauncher).bindAppWidgetId(mWidgetLoadingId, 559 info.componentName); 560 mWidgetCleanupState = WIDGET_BOUND; 561 } 562 }; 563 post(mBindWidgetRunnable); 564 565 mInflateWidgetRunnable = new Runnable() { 566 @Override 567 public void run() { 568 AppWidgetHostView hostView = 569 mLauncher.getAppWidgetHost().createView(mContext, mWidgetLoadingId, pInfo); 570 info.boundWidget = hostView; 571 mWidgetCleanupState = WIDGET_INFLATED; 572 } 573 }; 574 post(mInflateWidgetRunnable); 575 } 576 577 @Override 578 public void onShortPress(View v) { 579 // We are anticipating a long press, and we use this time to load bind and instantiate 580 // the widget. This will need to be cleaned up if it turns out no long press occurs. 581 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) v.getTag(); 582 loadWidgetInBackground(createWidgetInfo); 583 } 584 585 @Override 586 public void cleanUpShortPress(View v) { 587 PendingAddWidgetInfo info = (PendingAddWidgetInfo) v.getTag(); 588 if (mWidgetCleanupState >= 0 && mWidgetLoadingId != -1) { 589 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 590 } 591 if (mWidgetCleanupState == WIDGET_BOUND) { 592 removeCallbacks(mInflateWidgetRunnable); 593 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 594 AppWidgetHostView widget = info.boundWidget; 595 int widgetId = widget.getAppWidgetId(); 596 mLauncher.getAppWidgetHost().deleteAppWidgetId(widgetId); 597 } 598 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 599 mWidgetLoadingId = -1; 600 } 601 602 private void beginDraggingWidget(View v) { 603 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 604 mWidgetLoadingId = -1; 605 606 // Get the widget preview as the drag representation 607 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 608 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 609 610 // Compose the drag image 611 Bitmap preview; 612 Bitmap outline; 613 if (createItemInfo instanceof PendingAddWidgetInfo) { 614 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 615 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 616 int[] size = mLauncher.getWorkspace().estimateItemSize(spanXY[0], 617 spanXY[1], createWidgetInfo, true); 618 createItemInfo.spanX = spanXY[0]; 619 createItemInfo.spanY = spanXY[1]; 620 621 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 622 createWidgetInfo.icon, spanXY[0], spanXY[1], size[0], size[1]); 623 } else { 624 // Workaround for the fact that we don't keep the original ResolveInfo associated with 625 // the shortcut around. To get the icon, we just render the preview image (which has 626 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 627 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 628 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 629 Drawable d = image.getDrawable(); 630 mCanvas.setBitmap(preview); 631 d.draw(mCanvas); 632 mCanvas.setBitmap(null); 633 createItemInfo.spanX = createItemInfo.spanY = 1; 634 } 635 636 // We use a custom alpha clip table for the default widget previews 637 Paint alphaClipPaint = null; 638 if (createItemInfo instanceof PendingAddWidgetInfo) { 639 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 640 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 641 alphaClipPaint = new Paint(); 642 alphaClipPaint.setMaskFilter(alphaClipTable); 643 } 644 } 645 646 // Save the preview for the outline generation, then dim the preview 647 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 648 false); 649 650 // Start the drag 651 alphaClipPaint = null; 652 mLauncher.lockScreenOrientationOnLargeUI(); 653 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 654 mDragController.startDrag(image, preview, this, createItemInfo, 655 DragController.DRAG_ACTION_COPY, null); 656 outline.recycle(); 657 preview.recycle(); 658 } 659 660 @Override 661 protected boolean beginDragging(final View v) { 662 if (!super.beginDragging(v)) return false; 663 664 if (v instanceof PagedViewIcon) { 665 beginDraggingApplication(v); 666 } else if (v instanceof PagedViewWidget) { 667 beginDraggingWidget(v); 668 } 669 670 // We delay entering spring-loaded mode slightly to make sure the UI 671 // thready is free of any work. 672 postDelayed(new Runnable() { 673 @Override 674 public void run() { 675 // Dismiss the cling 676 mLauncher.dismissAllAppsCling(null); 677 678 // Reset the alpha on the dragged icon before we drag 679 resetDrawableState(); 680 681 // Go into spring loaded mode (must happen before we startDrag()) 682 mLauncher.enterSpringLoadedDragMode(); 683 } 684 },150); 685 686 return true; 687 } 688 private void endDragging(View target, boolean success) { 689 mLauncher.getWorkspace().onDragStopped(success); 690 if (!success || (target != mLauncher.getWorkspace() && 691 !(target instanceof DeleteDropTarget))) { 692 // Exit spring loaded mode if we have not successfully dropped or have not handled the 693 // drop in Workspace 694 mLauncher.exitSpringLoadedDragMode(); 695 } 696 mLauncher.unlockScreenOrientationOnLargeUI(); 697 698 } 699 700 @Override 701 public void onDropCompleted(View target, DragObject d, boolean success) { 702 endDragging(target, success); 703 704 // Display an error message if the drag failed due to there not being enough space on the 705 // target layout we were dropping on. 706 if (!success) { 707 boolean showOutOfSpaceMessage = false; 708 if (target instanceof Workspace) { 709 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 710 Workspace workspace = (Workspace) target; 711 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 712 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 713 if (layout != null) { 714 layout.calculateSpans(itemInfo); 715 showOutOfSpaceMessage = 716 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 717 } 718 } 719 if (showOutOfSpaceMessage) { 720 mLauncher.showOutOfSpaceMessage(); 721 } 722 d.deferDragViewCleanupPostAnimation = false; 723 } 724 } 725 726 @Override 727 protected void onDetachedFromWindow() { 728 super.onDetachedFromWindow(); 729 cancelAllTasks(); 730 } 731 732 public void clearAllWidgetPages() { 733 cancelAllTasks(); 734 int count = getChildCount(); 735 for (int i = 0; i < count; i++) { 736 View v = getPageAt(i); 737 if (v instanceof PagedViewGridLayout) { 738 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 739 mDirtyPageContent.set(i, true); 740 } 741 } 742 } 743 744 private void cancelAllTasks() { 745 // Clean up all the async tasks 746 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 747 while (iter.hasNext()) { 748 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 749 task.cancel(false); 750 iter.remove(); 751 } 752 } 753 754 public void setContentType(ContentType type) { 755 if (type == ContentType.Widgets) { 756 invalidatePageData(mNumAppsPages, true); 757 } else if (type == ContentType.Applications) { 758 invalidatePageData(0, true); 759 } 760 } 761 762 protected void snapToPage(int whichPage, int delta, int duration) { 763 super.snapToPage(whichPage, delta, duration); 764 updateCurrentTab(whichPage); 765 766 // Update the thread priorities given the direction lookahead 767 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 768 while (iter.hasNext()) { 769 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 770 int pageIndex = task.page + mNumAppsPages; 771 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 772 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 773 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 774 } else { 775 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 776 } 777 } 778 } 779 780 private void updateCurrentTab(int currentPage) { 781 AppsCustomizeTabHost tabHost = getTabHost(); 782 if (tabHost != null) { 783 String tag = tabHost.getCurrentTabTag(); 784 if (tag != null) { 785 if (currentPage >= mNumAppsPages && 786 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 787 tabHost.setCurrentTabFromContent(ContentType.Widgets); 788 } else if (currentPage < mNumAppsPages && 789 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 790 tabHost.setCurrentTabFromContent(ContentType.Applications); 791 } 792 } 793 } 794 } 795 796 /* 797 * Apps PagedView implementation 798 */ 799 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 800 int childCount = layout.getChildCount(); 801 for (int i = 0; i < childCount; ++i) { 802 layout.getChildAt(i).setVisibility(visibility); 803 } 804 } 805 private void setupPage(PagedViewCellLayout layout) { 806 layout.setCellCount(mCellCountX, mCellCountY); 807 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 808 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 809 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 810 811 // Note: We force a measure here to get around the fact that when we do layout calculations 812 // immediately after syncing, we don't have a proper width. That said, we already know the 813 // expected page width, so we can actually optimize by hiding all the TextView-based 814 // children that are expensive to measure, and let that happen naturally later. 815 setVisibilityOnChildren(layout, View.GONE); 816 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 817 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 818 layout.setMinimumWidth(getPageContentWidth()); 819 layout.measure(widthSpec, heightSpec); 820 setVisibilityOnChildren(layout, View.VISIBLE); 821 } 822 823 public void syncAppsPageItems(int page, boolean immediate) { 824 // ensure that we have the right number of items on the pages 825 int numCells = mCellCountX * mCellCountY; 826 int startIndex = page * numCells; 827 int endIndex = Math.min(startIndex + numCells, mApps.size()); 828 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 829 830 layout.removeAllViewsOnPage(); 831 ArrayList<Object> items = new ArrayList<Object>(); 832 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 833 for (int i = startIndex; i < endIndex; ++i) { 834 ApplicationInfo info = mApps.get(i); 835 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 836 R.layout.apps_customize_application, layout, false); 837 icon.applyFromApplicationInfo(info, true, this); 838 icon.setOnClickListener(this); 839 icon.setOnLongClickListener(this); 840 icon.setOnTouchListener(this); 841 icon.setOnKeyListener(this); 842 843 int index = i - startIndex; 844 int x = index % mCellCountX; 845 int y = index / mCellCountX; 846 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 847 848 items.add(info); 849 images.add(info.iconBitmap); 850 } 851 852 layout.createHardwareLayers(); 853 } 854 855 /** 856 * A helper to return the priority for loading of the specified widget page. 857 */ 858 private int getWidgetPageLoadPriority(int page) { 859 // If we are snapping to another page, use that index as the target page index 860 int toPage = mCurrentPage; 861 if (mNextPage > -1) { 862 toPage = mNextPage; 863 } 864 865 // We use the distance from the target page as an initial guess of priority, but if there 866 // are no pages of higher priority than the page specified, then bump up the priority of 867 // the specified page. 868 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 869 int minPageDiff = Integer.MAX_VALUE; 870 while (iter.hasNext()) { 871 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 872 minPageDiff = Math.abs(task.page + mNumAppsPages - toPage); 873 } 874 875 int rawPageDiff = Math.abs(page - toPage); 876 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 877 } 878 /** 879 * Return the appropriate thread priority for loading for a given page (we give the current 880 * page much higher priority) 881 */ 882 private int getThreadPriorityForPage(int page) { 883 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 884 int pageDiff = getWidgetPageLoadPriority(page); 885 if (pageDiff <= 0) { 886 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 887 } else if (pageDiff <= 1) { 888 return Process.THREAD_PRIORITY_LOWEST; 889 } else { 890 return Process.THREAD_PRIORITY_LOWEST; 891 } 892 } 893 private int getSleepForPage(int page) { 894 int pageDiff = getWidgetPageLoadPriority(page); 895 return Math.max(0, pageDiff * sPageSleepDelay); 896 } 897 /** 898 * Creates and executes a new AsyncTask to load a page of widget previews. 899 */ 900 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 901 int cellWidth, int cellHeight, int cellCountX) { 902 903 // Prune all tasks that are no longer needed 904 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 905 while (iter.hasNext()) { 906 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 907 int taskPage = task.page + mNumAppsPages; 908 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 909 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 910 task.cancel(false); 911 iter.remove(); 912 } else { 913 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 914 } 915 } 916 917 // We introduce a slight delay to order the loading of side pages so that we don't thrash 918 final int sleepMs = getSleepForPage(page + mNumAppsPages); 919 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 920 new AsyncTaskCallback() { 921 @Override 922 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 923 try { 924 try { 925 Thread.sleep(sleepMs); 926 } catch (Exception e) {} 927 loadWidgetPreviewsInBackground(task, data); 928 } finally { 929 if (task.isCancelled()) { 930 data.cleanup(true); 931 } 932 } 933 } 934 }, 935 new AsyncTaskCallback() { 936 @Override 937 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 938 try { 939 mRunningTasks.remove(task); 940 if (task.isCancelled()) return; 941 onSyncWidgetPageItems(data); 942 } finally { 943 data.cleanup(task.isCancelled()); 944 } 945 } 946 }); 947 948 // Ensure that the task is appropriately prioritized and runs in parallel 949 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 950 AsyncTaskPageData.Type.LoadWidgetPreviewData); 951 t.setThreadPriority(getThreadPriorityForPage(page + mNumAppsPages)); 952 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 953 mRunningTasks.add(t); 954 } 955 956 /* 957 * Widgets PagedView implementation 958 */ 959 private void setupPage(PagedViewGridLayout layout) { 960 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 961 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 962 963 // Note: We force a measure here to get around the fact that when we do layout calculations 964 // immediately after syncing, we don't have a proper width. 965 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 966 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 967 layout.setMinimumWidth(getPageContentWidth()); 968 layout.measure(widthSpec, heightSpec); 969 } 970 971 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 972 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 973 } 974 975 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 976 float scale, int multiplyColor) { 977 if (bitmap != null) { 978 Canvas c = new Canvas(bitmap); 979 c.scale(scale, scale); 980 Rect oldBounds = d.copyBounds(); 981 d.setBounds(x, y, x + w, y + h); 982 d.draw(c); 983 d.setBounds(oldBounds); // Restore the bounds 984 c.setBitmap(null); 985 } 986 } 987 private Bitmap getShortcutPreview(ResolveInfo info) { 988 // Render the background 989 int offset = 0; 990 int bitmapSize = mAppIconSize; 991 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 992 993 // Render the icon 994 Drawable icon = mIconCache.getFullResIcon(info); 995 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 996 return preview; 997 } 998 999 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1000 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1001 // Load the preview image if possible 1002 String packageName = provider.getPackageName(); 1003 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1004 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1005 1006 Drawable drawable = null; 1007 if (previewImage != 0) { 1008 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1009 if (drawable == null) { 1010 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1011 Integer.toHexString(previewImage) + " for provider: " + provider); 1012 } 1013 } 1014 1015 int bitmapWidth; 1016 int bitmapHeight; 1017 boolean widgetPreviewExists = (drawable != null); 1018 if (widgetPreviewExists) { 1019 bitmapWidth = drawable.getIntrinsicWidth(); 1020 bitmapHeight = drawable.getIntrinsicHeight(); 1021 1022 // Cap the size so widget previews don't appear larger than the actual widget 1023 maxWidth = Math.min(maxWidth, mWidgetSpacingLayout.estimateCellWidth(cellHSpan)); 1024 maxHeight = Math.min(maxHeight, mWidgetSpacingLayout.estimateCellHeight(cellVSpan)); 1025 } else { 1026 // Determine the size of the bitmap for the preview image we will generate 1027 // TODO: This actually uses the apps customize cell layout params, where as we make want 1028 // the Workspace params for more accuracy. 1029 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1030 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1031 if (cellHSpan == cellVSpan) { 1032 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1033 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1034 if (cellHSpan <= 1) { 1035 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1036 } else { 1037 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1038 } 1039 } 1040 } 1041 1042 float scale = 1f; 1043 if (bitmapWidth > maxWidth) { 1044 scale = maxWidth / (float) bitmapWidth; 1045 } 1046 if (bitmapHeight * scale > maxHeight) { 1047 scale = maxHeight / (float) bitmapHeight; 1048 } 1049 if (scale != 1f) { 1050 bitmapWidth = (int) (scale * bitmapWidth); 1051 bitmapHeight = (int) (scale * bitmapHeight); 1052 } 1053 1054 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1055 1056 if (widgetPreviewExists) { 1057 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1058 } else { 1059 // Generate a preview image if we couldn't load one 1060 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1061 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1062 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1063 if (cellHSpan != 1 || cellVSpan != 1) { 1064 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1065 bitmapHeight); 1066 } 1067 1068 // Draw the icon in the top left corner 1069 try { 1070 Drawable icon = null; 1071 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1072 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1073 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1074 Resources resources = mLauncher.getResources(); 1075 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1076 1077 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1078 (int) (mAppIconSize * iconScale), 1079 (int) (mAppIconSize * iconScale)); 1080 } catch (Resources.NotFoundException e) {} 1081 } 1082 return preview; 1083 } 1084 1085 public void syncWidgetPageItems(final int page, final boolean immediate) { 1086 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1087 1088 // Calculate the dimensions of each cell we are giving to each widget 1089 final ArrayList<Object> items = new ArrayList<Object>(); 1090 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1091 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1092 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1093 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1094 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1095 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1096 1097 // Prepare the set of widgets to load previews for in the background 1098 int offset = page * numItemsPerPage; 1099 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1100 items.add(mWidgets.get(i)); 1101 } 1102 1103 // Prepopulate the pages with the other widget info, and fill in the previews later 1104 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1105 layout.setColumnCount(layout.getCellCountX()); 1106 for (int i = 0; i < items.size(); ++i) { 1107 Object rawInfo = items.get(i); 1108 PendingAddItemInfo createItemInfo = null; 1109 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1110 R.layout.apps_customize_widget, layout, false); 1111 if (rawInfo instanceof AppWidgetProviderInfo) { 1112 // Fill in the widget information 1113 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1114 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1115 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1116 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans); 1117 widget.setTag(createItemInfo); 1118 widget.setShortPressListener(this); 1119 } else if (rawInfo instanceof ResolveInfo) { 1120 // Fill in the shortcuts information 1121 ResolveInfo info = (ResolveInfo) rawInfo; 1122 createItemInfo = new PendingAddItemInfo(); 1123 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1124 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1125 info.activityInfo.name); 1126 widget.applyFromResolveInfo(mPackageManager, info); 1127 widget.setTag(createItemInfo); 1128 } 1129 widget.setOnClickListener(this); 1130 widget.setOnLongClickListener(this); 1131 widget.setOnTouchListener(this); 1132 widget.setOnKeyListener(this); 1133 1134 // Layout each widget 1135 int ix = i % mWidgetCountX; 1136 int iy = i / mWidgetCountX; 1137 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1138 GridLayout.spec(iy, GridLayout.LEFT), 1139 GridLayout.spec(ix, GridLayout.TOP)); 1140 lp.width = cellWidth; 1141 lp.height = cellHeight; 1142 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1143 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1144 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1145 layout.addView(widget, lp); 1146 } 1147 1148 // wait until a call on onLayout to start loading, because 1149 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1150 // TODO: can we do a measure/layout immediately? 1151 layout.setOnLayoutListener(new Runnable() { 1152 public void run() { 1153 // Load the widget previews 1154 int maxPreviewWidth = cellWidth; 1155 int maxPreviewHeight = cellHeight; 1156 if (layout.getChildCount() > 0) { 1157 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1158 int[] maxSize = w.getPreviewSize(); 1159 maxPreviewWidth = maxSize[0]; 1160 maxPreviewHeight = maxSize[1]; 1161 } 1162 if (immediate) { 1163 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1164 maxPreviewWidth, maxPreviewHeight, null, null); 1165 loadWidgetPreviewsInBackground(null, data); 1166 onSyncWidgetPageItems(data); 1167 } else { 1168 prepareLoadWidgetPreviewsTask(page, items, 1169 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1170 } 1171 } 1172 }); 1173 } 1174 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1175 AsyncTaskPageData data) { 1176 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1177 // previews synchronously 1178 if (task != null) { 1179 // Ensure that this task starts running at the correct priority 1180 task.syncThreadPriority(); 1181 } 1182 1183 // Load each of the widget/shortcut previews 1184 ArrayList<Object> items = data.items; 1185 ArrayList<Bitmap> images = data.generatedImages; 1186 int count = items.size(); 1187 for (int i = 0; i < count; ++i) { 1188 if (task != null) { 1189 // Ensure we haven't been cancelled yet 1190 if (task.isCancelled()) break; 1191 // Before work on each item, ensure that this task is running at the correct 1192 // priority 1193 task.syncThreadPriority(); 1194 } 1195 1196 Object rawInfo = items.get(i); 1197 if (rawInfo instanceof AppWidgetProviderInfo) { 1198 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1199 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1200 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1201 cellSpans[0], cellSpans[1], data.maxImageWidth, data.maxImageHeight); 1202 images.add(b); 1203 } else if (rawInfo instanceof ResolveInfo) { 1204 // Fill in the shortcuts information 1205 ResolveInfo info = (ResolveInfo) rawInfo; 1206 images.add(getShortcutPreview(info)); 1207 } 1208 } 1209 } 1210 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1211 int page = data.page; 1212 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1213 1214 ArrayList<Object> items = data.items; 1215 int count = items.size(); 1216 for (int i = 0; i < count; ++i) { 1217 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1218 if (widget != null) { 1219 Bitmap preview = data.generatedImages.get(i); 1220 widget.applyPreview(new FastBitmapDrawable(preview), i); 1221 } 1222 } 1223 1224 layout.createHardwareLayer(); 1225 invalidate(); 1226 1227 // Update all thread priorities 1228 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1229 while (iter.hasNext()) { 1230 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1231 int pageIndex = task.page + mNumAppsPages; 1232 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1233 } 1234 } 1235 1236 @Override 1237 public void syncPages() { 1238 removeAllViews(); 1239 cancelAllTasks(); 1240 1241 Context context = getContext(); 1242 for (int j = 0; j < mNumWidgetPages; ++j) { 1243 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1244 mWidgetCountY); 1245 setupPage(layout); 1246 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1247 LayoutParams.MATCH_PARENT)); 1248 } 1249 1250 for (int i = 0; i < mNumAppsPages; ++i) { 1251 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1252 setupPage(layout); 1253 addView(layout); 1254 } 1255 } 1256 1257 @Override 1258 public void syncPageItems(int page, boolean immediate) { 1259 if (page < mNumAppsPages) { 1260 syncAppsPageItems(page, immediate); 1261 } else { 1262 syncWidgetPageItems(page - mNumAppsPages, immediate); 1263 } 1264 } 1265 1266 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1267 // it is in the z-order. This is important to insure touch events are handled correctly. 1268 View getPageAt(int index) { 1269 return getChildAt(getChildCount() - index - 1); 1270 } 1271 1272 @Override 1273 protected int indexToPage(int index) { 1274 return getChildCount() - index - 1; 1275 } 1276 1277 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1278 @Override 1279 protected void screenScrolled(int screenCenter) { 1280 super.screenScrolled(screenCenter); 1281 1282 for (int i = 0; i < getChildCount(); i++) { 1283 View v = getPageAt(i); 1284 if (v != null) { 1285 float scrollProgress = getScrollProgress(screenCenter, v, i); 1286 1287 float interpolatedProgress = 1288 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1289 float scale = (1 - interpolatedProgress) + 1290 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1291 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1292 1293 float alpha; 1294 1295 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1296 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1297 1 - Math.abs(scrollProgress)) : 1.0f; 1298 } else { 1299 // On large screens we need to fade the page as it nears its leftmost position 1300 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1301 } 1302 1303 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1304 int pageWidth = v.getMeasuredWidth(); 1305 int pageHeight = v.getMeasuredHeight(); 1306 1307 if (PERFORM_OVERSCROLL_ROTATION) { 1308 if (i == 0 && scrollProgress < 0) { 1309 // Overscroll to the left 1310 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1311 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1312 scale = 1.0f; 1313 alpha = 1.0f; 1314 // On the first page, we don't want the page to have any lateral motion 1315 translationX = 0; 1316 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1317 // Overscroll to the right 1318 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1319 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1320 scale = 1.0f; 1321 alpha = 1.0f; 1322 // On the last page, we don't want the page to have any lateral motion. 1323 translationX = 0; 1324 } else { 1325 v.setPivotY(pageHeight / 2.0f); 1326 v.setPivotX(pageWidth / 2.0f); 1327 v.setRotationY(0f); 1328 } 1329 } 1330 1331 v.setTranslationX(translationX); 1332 v.setScaleX(scale); 1333 v.setScaleY(scale); 1334 v.setAlpha(alpha); 1335 1336 // If the view has 0 alpha, we set it to be invisible so as to prevent 1337 // it from accepting touches 1338 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1339 v.setVisibility(INVISIBLE); 1340 } else if (v.getVisibility() != VISIBLE) { 1341 v.setVisibility(VISIBLE); 1342 } 1343 } 1344 } 1345 } 1346 1347 protected void overScroll(float amount) { 1348 acceleratedOverScroll(amount); 1349 } 1350 1351 /** 1352 * Used by the parent to get the content width to set the tab bar to 1353 * @return 1354 */ 1355 public int getPageContentWidth() { 1356 return mContentWidth; 1357 } 1358 1359 @Override 1360 protected void onPageEndMoving() { 1361 super.onPageEndMoving(); 1362 1363 // We reset the save index when we change pages so that it will be recalculated on next 1364 // rotation 1365 mSaveInstanceStateItemIndex = -1; 1366 } 1367 1368 /* 1369 * AllAppsView implementation 1370 */ 1371 @Override 1372 public void setup(Launcher launcher, DragController dragController) { 1373 mLauncher = launcher; 1374 mDragController = dragController; 1375 } 1376 @Override 1377 public void zoom(float zoom, boolean animate) { 1378 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1379 } 1380 @Override 1381 public boolean isVisible() { 1382 return (getVisibility() == VISIBLE); 1383 } 1384 @Override 1385 public boolean isAnimating() { 1386 return false; 1387 } 1388 @Override 1389 public void setApps(ArrayList<ApplicationInfo> list) { 1390 mApps = list; 1391 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1392 updatePageCounts(); 1393 1394 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1395 // request a layout to do this test and invalidate the page data when ready. 1396 if (testDataReady()) requestLayout(); 1397 } 1398 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1399 // We add it in place, in alphabetical order 1400 int count = list.size(); 1401 for (int i = 0; i < count; ++i) { 1402 ApplicationInfo info = list.get(i); 1403 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1404 if (index < 0) { 1405 mApps.add(-(index + 1), info); 1406 } 1407 } 1408 } 1409 @Override 1410 public void addApps(ArrayList<ApplicationInfo> list) { 1411 addAppsWithoutInvalidate(list); 1412 updatePageCounts(); 1413 invalidatePageData(); 1414 } 1415 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1416 ComponentName removeComponent = item.intent.getComponent(); 1417 int length = list.size(); 1418 for (int i = 0; i < length; ++i) { 1419 ApplicationInfo info = list.get(i); 1420 if (info.intent.getComponent().equals(removeComponent)) { 1421 return i; 1422 } 1423 } 1424 return -1; 1425 } 1426 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1427 // loop through all the apps and remove apps that have the same component 1428 int length = list.size(); 1429 for (int i = 0; i < length; ++i) { 1430 ApplicationInfo info = list.get(i); 1431 int removeIndex = findAppByComponent(mApps, info); 1432 if (removeIndex > -1) { 1433 mApps.remove(removeIndex); 1434 } 1435 } 1436 } 1437 @Override 1438 public void removeApps(ArrayList<ApplicationInfo> list) { 1439 removeAppsWithoutInvalidate(list); 1440 updatePageCounts(); 1441 invalidatePageData(); 1442 } 1443 @Override 1444 public void updateApps(ArrayList<ApplicationInfo> list) { 1445 // We remove and re-add the updated applications list because it's properties may have 1446 // changed (ie. the title), and this will ensure that the items will be in their proper 1447 // place in the list. 1448 removeAppsWithoutInvalidate(list); 1449 addAppsWithoutInvalidate(list); 1450 updatePageCounts(); 1451 1452 invalidatePageData(); 1453 } 1454 1455 @Override 1456 public void reset() { 1457 // If we have reset, then we should not continue to restore the previous state 1458 mSaveInstanceStateItemIndex = -1; 1459 1460 AppsCustomizeTabHost tabHost = getTabHost(); 1461 String tag = tabHost.getCurrentTabTag(); 1462 if (tag != null) { 1463 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1464 tabHost.setCurrentTabFromContent(ContentType.Applications); 1465 } 1466 } 1467 1468 if (mCurrentPage != 0) { 1469 invalidatePageData(0); 1470 } 1471 } 1472 1473 private AppsCustomizeTabHost getTabHost() { 1474 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1475 } 1476 1477 @Override 1478 public void dumpState() { 1479 // TODO: Dump information related to current list of Applications, Widgets, etc. 1480 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1481 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1482 } 1483 1484 private void dumpAppWidgetProviderInfoList(String tag, String label, 1485 ArrayList<Object> list) { 1486 Log.d(tag, label + " size=" + list.size()); 1487 for (Object i: list) { 1488 if (i instanceof AppWidgetProviderInfo) { 1489 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1490 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1491 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1492 + " initialLayout=" + info.initialLayout 1493 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1494 } else if (i instanceof ResolveInfo) { 1495 ResolveInfo info = (ResolveInfo) i; 1496 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1497 + info.icon); 1498 } 1499 } 1500 } 1501 1502 @Override 1503 public void surrender() { 1504 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1505 // should stop this now. 1506 1507 // Stop all background tasks 1508 cancelAllTasks(); 1509 } 1510 1511 @Override 1512 public void iconPressed(PagedViewIcon icon) { 1513 // Reset the previously pressed icon and store a reference to the pressed icon so that 1514 // we can reset it on return to Launcher (in Launcher.onResume()) 1515 if (mPressedIcon != null) { 1516 mPressedIcon.resetDrawableState(); 1517 } 1518 mPressedIcon = icon; 1519 } 1520 1521 public void resetDrawableState() { 1522 if (mPressedIcon != null) { 1523 mPressedIcon.resetDrawableState(); 1524 mPressedIcon = null; 1525 } 1526 } 1527 1528 /* 1529 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1530 * widget previews in the background with the AsyncTasks. 1531 */ 1532 final static int sLookBehindPageCount = 2; 1533 final static int sLookAheadPageCount = 2; 1534 protected int getAssociatedLowerPageBound(int page) { 1535 final int count = getChildCount(); 1536 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1537 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1538 return windowMinIndex; 1539 } 1540 protected int getAssociatedUpperPageBound(int page) { 1541 final int count = getChildCount(); 1542 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1543 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1544 count - 1); 1545 return windowMaxIndex; 1546 } 1547 1548 @Override 1549 protected String getCurrentPageDescription() { 1550 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1551 int stringId = R.string.default_scroll_format; 1552 int count = 0; 1553 1554 if (page < mNumAppsPages) { 1555 stringId = R.string.apps_customize_apps_scroll_format; 1556 count = mNumAppsPages; 1557 } else { 1558 page -= mNumAppsPages; 1559 stringId = R.string.apps_customize_widgets_scroll_format; 1560 count = mNumWidgetPages; 1561 } 1562 1563 return String.format(mContext.getString(stringId), page + 1, count); 1564 } 1565} 1566