AppsCustomizePagedView.java revision ed66b2bac7447febe2e405b4ce725cae4f6b5988
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 private int mDragViewMultiplyColor; 208 209 // Dimens 210 private int mContentWidth; 211 private int mAppIconSize; 212 private int mMaxAppCellCountX, mMaxAppCellCountY; 213 private int mWidgetCountX, mWidgetCountY; 214 private int mWidgetWidthGap, mWidgetHeightGap; 215 private final int mWidgetPreviewIconPaddedDimension; 216 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 217 private PagedViewCellLayout mWidgetSpacingLayout; 218 private int mNumAppsPages; 219 private int mNumWidgetPages; 220 221 // Relating to the scroll and overscroll effects 222 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 223 private static float CAMERA_DISTANCE = 6500; 224 private static float TRANSITION_SCALE_FACTOR = 0.74f; 225 private static float TRANSITION_PIVOT = 0.65f; 226 private static float TRANSITION_MAX_ROTATION = 22; 227 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 228 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 229 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 230 231 // Previews & outlines 232 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 233 private static final int sPageSleepDelay = 200; 234 235 private Runnable mInflateWidgetRunnable = null; 236 private Runnable mBindWidgetRunnable = null; 237 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 238 static final int WIDGET_BOUND = 0; 239 static final int WIDGET_INFLATED = 1; 240 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 241 int mWidgetLoadingId = -1; 242 243 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 244 super(context, attrs); 245 mLayoutInflater = LayoutInflater.from(context); 246 mPackageManager = context.getPackageManager(); 247 mApps = new ArrayList<ApplicationInfo>(); 248 mWidgets = new ArrayList<Object>(); 249 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 250 mCanvas = new Canvas(); 251 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 252 253 // Save the default widget preview background 254 Resources resources = context.getResources(); 255 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 256 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 257 mDragViewMultiplyColor = resources.getColor(R.color.drag_view_multiply_color); 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 } 575 }; 576 post(mInflateWidgetRunnable); 577 } 578 579 @Override 580 public void onShortPress(View v) { 581 // We are anticipating a long press, and we use this time to load bind and instantiate 582 // the widget. This will need to be cleaned up if it turns out no long press occurs. 583 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) v.getTag(); 584 loadWidgetInBackground(createWidgetInfo); 585 } 586 587 @Override 588 public void cleanUpShortPress(View v) { 589 PendingAddWidgetInfo info = (PendingAddWidgetInfo) v.getTag(); 590 if (mWidgetCleanupState >= 0 && mWidgetLoadingId != -1) { 591 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 592 } 593 if (mWidgetCleanupState == WIDGET_BOUND) { 594 removeCallbacks(mInflateWidgetRunnable); 595 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 596 AppWidgetHostView widget = info.boundWidget; 597 int widgetId = widget.getAppWidgetId(); 598 mLauncher.getAppWidgetHost().deleteAppWidgetId(widgetId); 599 } 600 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 601 mWidgetLoadingId = -1; 602 } 603 604 private void beginDraggingWidget(View v) { 605 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 606 mWidgetLoadingId = -1; 607 608 // Get the widget preview as the drag representation 609 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 610 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 611 612 // Compose the drag image 613 Bitmap preview; 614 Bitmap outline; 615 if (createItemInfo instanceof PendingAddWidgetInfo) { 616 PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; 617 int[] spanXY = mLauncher.getSpanForWidget(createWidgetInfo, null); 618 int[] size = mLauncher.getWorkspace().estimateItemSize(spanXY[0], 619 spanXY[1], createWidgetInfo, true); 620 createItemInfo.spanX = spanXY[0]; 621 createItemInfo.spanY = spanXY[1]; 622 623 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 624 createWidgetInfo.icon, spanXY[0], spanXY[1], size[0], size[1]); 625 } else { 626 // Workaround for the fact that we don't keep the original ResolveInfo associated with 627 // the shortcut around. To get the icon, we just render the preview image (which has 628 // the shortcut icon) to a new drag bitmap that clips the non-icon space. 629 preview = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, 630 mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); 631 Drawable d = image.getDrawable(); 632 mCanvas.setBitmap(preview); 633 d.draw(mCanvas); 634 mCanvas.setBitmap(null); 635 createItemInfo.spanX = createItemInfo.spanY = 1; 636 } 637 638 // We use a custom alpha clip table for the default widget previews 639 Paint alphaClipPaint = null; 640 if (createItemInfo instanceof PendingAddWidgetInfo) { 641 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 642 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 643 alphaClipPaint = new Paint(); 644 alphaClipPaint.setMaskFilter(alphaClipTable); 645 } 646 } 647 648 // Save the preview for the outline generation, then dim the preview 649 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 650 false); 651 mCanvas.setBitmap(preview); 652 mCanvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 653 mCanvas.setBitmap(null); 654 655 // Start the drag 656 alphaClipPaint = null; 657 mLauncher.lockScreenOrientationOnLargeUI(); 658 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 659 mDragController.startDrag(image, preview, this, createItemInfo, 660 DragController.DRAG_ACTION_COPY, null); 661 outline.recycle(); 662 preview.recycle(); 663 } 664 665 @Override 666 protected boolean beginDragging(final View v) { 667 if (!super.beginDragging(v)) return false; 668 669 if (v instanceof PagedViewIcon) { 670 beginDraggingApplication(v); 671 } else if (v instanceof PagedViewWidget) { 672 beginDraggingWidget(v); 673 } 674 675 // We delay entering spring-loaded mode slightly to make sure the UI 676 // thready is free of any work. 677 postDelayed(new Runnable() { 678 @Override 679 public void run() { 680 // Dismiss the cling 681 mLauncher.dismissAllAppsCling(null); 682 683 // Reset the alpha on the dragged icon before we drag 684 resetDrawableState(); 685 686 // Go into spring loaded mode (must happen before we startDrag()) 687 mLauncher.enterSpringLoadedDragMode(); 688 } 689 },150); 690 691 return true; 692 } 693 private void endDragging(View target, boolean success) { 694 mLauncher.getWorkspace().onDragStopped(success); 695 if (!success || (target != mLauncher.getWorkspace() && 696 !(target instanceof DeleteDropTarget))) { 697 // Exit spring loaded mode if we have not successfully dropped or have not handled the 698 // drop in Workspace 699 mLauncher.exitSpringLoadedDragMode(); 700 } 701 mLauncher.unlockScreenOrientationOnLargeUI(); 702 703 } 704 705 @Override 706 public void onDropCompleted(View target, DragObject d, boolean success) { 707 endDragging(target, success); 708 709 // Display an error message if the drag failed due to there not being enough space on the 710 // target layout we were dropping on. 711 if (!success) { 712 boolean showOutOfSpaceMessage = false; 713 if (target instanceof Workspace) { 714 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 715 Workspace workspace = (Workspace) target; 716 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 717 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 718 if (layout != null) { 719 layout.calculateSpans(itemInfo); 720 showOutOfSpaceMessage = 721 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 722 } 723 } 724 if (showOutOfSpaceMessage) { 725 mLauncher.showOutOfSpaceMessage(); 726 } 727 } 728 } 729 730 @Override 731 protected void onDetachedFromWindow() { 732 super.onDetachedFromWindow(); 733 cancelAllTasks(); 734 } 735 736 public void clearAllWidgetPages() { 737 cancelAllTasks(); 738 int count = getChildCount(); 739 for (int i = 0; i < count; i++) { 740 View v = getPageAt(i); 741 if (v instanceof PagedViewGridLayout) { 742 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 743 mDirtyPageContent.set(i, true); 744 } 745 } 746 } 747 748 private void cancelAllTasks() { 749 // Clean up all the async tasks 750 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 751 while (iter.hasNext()) { 752 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 753 task.cancel(false); 754 iter.remove(); 755 } 756 } 757 758 public void setContentType(ContentType type) { 759 if (type == ContentType.Widgets) { 760 invalidatePageData(mNumAppsPages, true); 761 } else if (type == ContentType.Applications) { 762 invalidatePageData(0, true); 763 } 764 } 765 766 protected void snapToPage(int whichPage, int delta, int duration) { 767 super.snapToPage(whichPage, delta, duration); 768 updateCurrentTab(whichPage); 769 770 // Update the thread priorities given the direction lookahead 771 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 772 while (iter.hasNext()) { 773 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 774 int pageIndex = task.page + mNumAppsPages; 775 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 776 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 777 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 778 } else { 779 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 780 } 781 } 782 } 783 784 private void updateCurrentTab(int currentPage) { 785 AppsCustomizeTabHost tabHost = getTabHost(); 786 if (tabHost != null) { 787 String tag = tabHost.getCurrentTabTag(); 788 if (tag != null) { 789 if (currentPage >= mNumAppsPages && 790 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 791 tabHost.setCurrentTabFromContent(ContentType.Widgets); 792 } else if (currentPage < mNumAppsPages && 793 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 794 tabHost.setCurrentTabFromContent(ContentType.Applications); 795 } 796 } 797 } 798 } 799 800 /* 801 * Apps PagedView implementation 802 */ 803 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 804 int childCount = layout.getChildCount(); 805 for (int i = 0; i < childCount; ++i) { 806 layout.getChildAt(i).setVisibility(visibility); 807 } 808 } 809 private void setupPage(PagedViewCellLayout layout) { 810 layout.setCellCount(mCellCountX, mCellCountY); 811 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 812 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 813 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 814 815 // Note: We force a measure here to get around the fact that when we do layout calculations 816 // immediately after syncing, we don't have a proper width. That said, we already know the 817 // expected page width, so we can actually optimize by hiding all the TextView-based 818 // children that are expensive to measure, and let that happen naturally later. 819 setVisibilityOnChildren(layout, View.GONE); 820 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 821 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 822 layout.setMinimumWidth(getPageContentWidth()); 823 layout.measure(widthSpec, heightSpec); 824 setVisibilityOnChildren(layout, View.VISIBLE); 825 } 826 827 public void syncAppsPageItems(int page, boolean immediate) { 828 // ensure that we have the right number of items on the pages 829 int numCells = mCellCountX * mCellCountY; 830 int startIndex = page * numCells; 831 int endIndex = Math.min(startIndex + numCells, mApps.size()); 832 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 833 834 layout.removeAllViewsOnPage(); 835 ArrayList<Object> items = new ArrayList<Object>(); 836 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 837 for (int i = startIndex; i < endIndex; ++i) { 838 ApplicationInfo info = mApps.get(i); 839 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 840 R.layout.apps_customize_application, layout, false); 841 icon.applyFromApplicationInfo(info, true, this); 842 icon.setOnClickListener(this); 843 icon.setOnLongClickListener(this); 844 icon.setOnTouchListener(this); 845 icon.setOnKeyListener(this); 846 847 int index = i - startIndex; 848 int x = index % mCellCountX; 849 int y = index / mCellCountX; 850 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 851 852 items.add(info); 853 images.add(info.iconBitmap); 854 } 855 856 layout.createHardwareLayers(); 857 } 858 859 /** 860 * A helper to return the priority for loading of the specified widget page. 861 */ 862 private int getWidgetPageLoadPriority(int page) { 863 // If we are snapping to another page, use that index as the target page index 864 int toPage = mCurrentPage; 865 if (mNextPage > -1) { 866 toPage = mNextPage; 867 } 868 869 // We use the distance from the target page as an initial guess of priority, but if there 870 // are no pages of higher priority than the page specified, then bump up the priority of 871 // the specified page. 872 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 873 int minPageDiff = Integer.MAX_VALUE; 874 while (iter.hasNext()) { 875 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 876 minPageDiff = Math.abs(task.page + mNumAppsPages - toPage); 877 } 878 879 int rawPageDiff = Math.abs(page - toPage); 880 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 881 } 882 /** 883 * Return the appropriate thread priority for loading for a given page (we give the current 884 * page much higher priority) 885 */ 886 private int getThreadPriorityForPage(int page) { 887 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 888 int pageDiff = getWidgetPageLoadPriority(page); 889 if (pageDiff <= 0) { 890 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 891 } else if (pageDiff <= 1) { 892 return Process.THREAD_PRIORITY_LOWEST; 893 } else { 894 return Process.THREAD_PRIORITY_LOWEST; 895 } 896 } 897 private int getSleepForPage(int page) { 898 int pageDiff = getWidgetPageLoadPriority(page); 899 return Math.max(0, pageDiff * sPageSleepDelay); 900 } 901 /** 902 * Creates and executes a new AsyncTask to load a page of widget previews. 903 */ 904 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 905 int cellWidth, int cellHeight, int cellCountX) { 906 907 // Prune all tasks that are no longer needed 908 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 909 while (iter.hasNext()) { 910 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 911 int taskPage = task.page + mNumAppsPages; 912 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 913 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 914 task.cancel(false); 915 iter.remove(); 916 } else { 917 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 918 } 919 } 920 921 // We introduce a slight delay to order the loading of side pages so that we don't thrash 922 final int sleepMs = getSleepForPage(page + mNumAppsPages); 923 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 924 new AsyncTaskCallback() { 925 @Override 926 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 927 try { 928 try { 929 Thread.sleep(sleepMs); 930 } catch (Exception e) {} 931 loadWidgetPreviewsInBackground(task, data); 932 } finally { 933 if (task.isCancelled()) { 934 data.cleanup(true); 935 } 936 } 937 } 938 }, 939 new AsyncTaskCallback() { 940 @Override 941 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 942 try { 943 mRunningTasks.remove(task); 944 if (task.isCancelled()) return; 945 onSyncWidgetPageItems(data); 946 } finally { 947 data.cleanup(task.isCancelled()); 948 } 949 } 950 }); 951 952 // Ensure that the task is appropriately prioritized and runs in parallel 953 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 954 AsyncTaskPageData.Type.LoadWidgetPreviewData); 955 t.setThreadPriority(getThreadPriorityForPage(page + mNumAppsPages)); 956 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 957 mRunningTasks.add(t); 958 } 959 960 /* 961 * Widgets PagedView implementation 962 */ 963 private void setupPage(PagedViewGridLayout layout) { 964 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 965 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 966 967 // Note: We force a measure here to get around the fact that when we do layout calculations 968 // immediately after syncing, we don't have a proper width. 969 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 970 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 971 layout.setMinimumWidth(getPageContentWidth()); 972 layout.measure(widthSpec, heightSpec); 973 } 974 975 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 976 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f, 0xFFFFFFFF); 977 } 978 979 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 980 float scale, int multiplyColor) { 981 if (bitmap != null) { 982 Canvas c = new Canvas(bitmap); 983 c.scale(scale, scale); 984 Rect oldBounds = d.copyBounds(); 985 d.setBounds(x, y, x + w, y + h); 986 d.draw(c); 987 d.setBounds(oldBounds); // Restore the bounds 988 if (multiplyColor != 0xFFFFFFFF) { 989 c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 990 } 991 c.setBitmap(null); 992 } 993 } 994 private Bitmap getShortcutPreview(ResolveInfo info) { 995 // Render the background 996 int offset = 0; 997 int bitmapSize = mAppIconSize; 998 Bitmap preview = Bitmap.createBitmap(bitmapSize, bitmapSize, Config.ARGB_8888); 999 1000 // Render the icon 1001 Drawable icon = mIconCache.getFullResIcon(info); 1002 renderDrawableToBitmap(icon, preview, offset, offset, mAppIconSize, mAppIconSize); 1003 return preview; 1004 } 1005 1006 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, int iconId, 1007 int cellHSpan, int cellVSpan, int maxWidth, int maxHeight) { 1008 // Load the preview image if possible 1009 String packageName = provider.getPackageName(); 1010 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1011 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1012 1013 Drawable drawable = null; 1014 if (previewImage != 0) { 1015 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1016 if (drawable == null) { 1017 Log.w(LOG_TAG, "Can't load widget preview drawable 0x" + 1018 Integer.toHexString(previewImage) + " for provider: " + provider); 1019 } 1020 } 1021 1022 int bitmapWidth; 1023 int bitmapHeight; 1024 boolean widgetPreviewExists = (drawable != null); 1025 if (widgetPreviewExists) { 1026 bitmapWidth = drawable.getIntrinsicWidth(); 1027 bitmapHeight = drawable.getIntrinsicHeight(); 1028 1029 // Cap the size so widget previews don't appear larger than the actual widget 1030 maxWidth = Math.min(maxWidth, mWidgetSpacingLayout.estimateCellWidth(cellHSpan)); 1031 maxHeight = Math.min(maxHeight, mWidgetSpacingLayout.estimateCellHeight(cellVSpan)); 1032 } else { 1033 // Determine the size of the bitmap for the preview image we will generate 1034 // TODO: This actually uses the apps customize cell layout params, where as we make want 1035 // the Workspace params for more accuracy. 1036 bitmapWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); 1037 bitmapHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); 1038 if (cellHSpan == cellVSpan) { 1039 // For square widgets, we just have a fixed size for 1x1 and larger-than-1x1 1040 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1041 if (cellHSpan <= 1) { 1042 bitmapWidth = bitmapHeight = mAppIconSize + 2 * minOffset; 1043 } else { 1044 bitmapWidth = bitmapHeight = mAppIconSize + 4 * minOffset; 1045 } 1046 } 1047 } 1048 1049 float scale = 1f; 1050 if (bitmapWidth > maxWidth) { 1051 scale = maxWidth / (float) bitmapWidth; 1052 } 1053 if (bitmapHeight * scale > maxHeight) { 1054 scale = maxHeight / (float) bitmapHeight; 1055 } 1056 if (scale != 1f) { 1057 bitmapWidth = (int) (scale * bitmapWidth); 1058 bitmapHeight = (int) (scale * bitmapHeight); 1059 } 1060 1061 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888); 1062 1063 if (widgetPreviewExists) { 1064 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, bitmapHeight); 1065 } else { 1066 // Generate a preview image if we couldn't load one 1067 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1068 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1069 float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); 1070 if (cellHSpan != 1 || cellVSpan != 1) { 1071 renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, bitmapWidth, 1072 bitmapHeight); 1073 } 1074 1075 // Draw the icon in the top left corner 1076 try { 1077 Drawable icon = null; 1078 int hoffset = (int) (bitmapWidth / 2 - mAppIconSize * iconScale / 2); 1079 int yoffset = (int) (bitmapHeight / 2 - mAppIconSize * iconScale / 2); 1080 if (iconId > 0) icon = mIconCache.getFullResIcon(packageName, iconId); 1081 Resources resources = mLauncher.getResources(); 1082 if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); 1083 1084 renderDrawableToBitmap(icon, preview, hoffset, yoffset, 1085 (int) (mAppIconSize * iconScale), 1086 (int) (mAppIconSize * iconScale)); 1087 } catch (Resources.NotFoundException e) {} 1088 } 1089 return preview; 1090 } 1091 1092 public void syncWidgetPageItems(final int page, final boolean immediate) { 1093 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1094 1095 // Calculate the dimensions of each cell we are giving to each widget 1096 final ArrayList<Object> items = new ArrayList<Object>(); 1097 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1098 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1099 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1100 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1101 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1102 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1103 1104 // Prepare the set of widgets to load previews for in the background 1105 int offset = page * numItemsPerPage; 1106 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1107 items.add(mWidgets.get(i)); 1108 } 1109 1110 // Prepopulate the pages with the other widget info, and fill in the previews later 1111 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1112 layout.setColumnCount(layout.getCellCountX()); 1113 for (int i = 0; i < items.size(); ++i) { 1114 Object rawInfo = items.get(i); 1115 PendingAddItemInfo createItemInfo = null; 1116 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1117 R.layout.apps_customize_widget, layout, false); 1118 if (rawInfo instanceof AppWidgetProviderInfo) { 1119 // Fill in the widget information 1120 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1121 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1122 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1123 widget.applyFromAppWidgetProviderInfo(info, -1, cellSpans); 1124 widget.setTag(createItemInfo); 1125 widget.setShortPressListener(this); 1126 } else if (rawInfo instanceof ResolveInfo) { 1127 // Fill in the shortcuts information 1128 ResolveInfo info = (ResolveInfo) rawInfo; 1129 createItemInfo = new PendingAddItemInfo(); 1130 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1131 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1132 info.activityInfo.name); 1133 widget.applyFromResolveInfo(mPackageManager, info); 1134 widget.setTag(createItemInfo); 1135 } 1136 widget.setOnClickListener(this); 1137 widget.setOnLongClickListener(this); 1138 widget.setOnTouchListener(this); 1139 widget.setOnKeyListener(this); 1140 1141 // Layout each widget 1142 int ix = i % mWidgetCountX; 1143 int iy = i / mWidgetCountX; 1144 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1145 GridLayout.spec(iy, GridLayout.LEFT), 1146 GridLayout.spec(ix, GridLayout.TOP)); 1147 lp.width = cellWidth; 1148 lp.height = cellHeight; 1149 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1150 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1151 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1152 layout.addView(widget, lp); 1153 } 1154 1155 // wait until a call on onLayout to start loading, because 1156 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1157 // TODO: can we do a measure/layout immediately? 1158 layout.setOnLayoutListener(new Runnable() { 1159 public void run() { 1160 // Load the widget previews 1161 int maxPreviewWidth = cellWidth; 1162 int maxPreviewHeight = cellHeight; 1163 if (layout.getChildCount() > 0) { 1164 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1165 int[] maxSize = w.getPreviewSize(); 1166 maxPreviewWidth = maxSize[0]; 1167 maxPreviewHeight = maxSize[1]; 1168 } 1169 if (immediate) { 1170 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1171 maxPreviewWidth, maxPreviewHeight, null, null); 1172 loadWidgetPreviewsInBackground(null, data); 1173 onSyncWidgetPageItems(data); 1174 } else { 1175 prepareLoadWidgetPreviewsTask(page, items, 1176 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1177 } 1178 } 1179 }); 1180 } 1181 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1182 AsyncTaskPageData data) { 1183 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1184 // previews synchronously 1185 if (task != null) { 1186 // Ensure that this task starts running at the correct priority 1187 task.syncThreadPriority(); 1188 } 1189 1190 // Load each of the widget/shortcut previews 1191 ArrayList<Object> items = data.items; 1192 ArrayList<Bitmap> images = data.generatedImages; 1193 int count = items.size(); 1194 for (int i = 0; i < count; ++i) { 1195 if (task != null) { 1196 // Ensure we haven't been cancelled yet 1197 if (task.isCancelled()) break; 1198 // Before work on each item, ensure that this task is running at the correct 1199 // priority 1200 task.syncThreadPriority(); 1201 } 1202 1203 Object rawInfo = items.get(i); 1204 if (rawInfo instanceof AppWidgetProviderInfo) { 1205 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1206 int[] cellSpans = mLauncher.getSpanForWidget(info, null); 1207 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1208 cellSpans[0], cellSpans[1], data.maxImageWidth, data.maxImageHeight); 1209 images.add(b); 1210 } else if (rawInfo instanceof ResolveInfo) { 1211 // Fill in the shortcuts information 1212 ResolveInfo info = (ResolveInfo) rawInfo; 1213 images.add(getShortcutPreview(info)); 1214 } 1215 } 1216 } 1217 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1218 int page = data.page; 1219 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page + mNumAppsPages); 1220 1221 ArrayList<Object> items = data.items; 1222 int count = items.size(); 1223 for (int i = 0; i < count; ++i) { 1224 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1225 if (widget != null) { 1226 Bitmap preview = data.generatedImages.get(i); 1227 widget.applyPreview(new FastBitmapDrawable(preview), i); 1228 } 1229 } 1230 1231 layout.createHardwareLayer(); 1232 invalidate(); 1233 1234 // Update all thread priorities 1235 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1236 while (iter.hasNext()) { 1237 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1238 int pageIndex = task.page + mNumAppsPages; 1239 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1240 } 1241 } 1242 1243 @Override 1244 public void syncPages() { 1245 removeAllViews(); 1246 cancelAllTasks(); 1247 1248 Context context = getContext(); 1249 for (int j = 0; j < mNumWidgetPages; ++j) { 1250 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1251 mWidgetCountY); 1252 setupPage(layout); 1253 addView(layout, new PagedViewGridLayout.LayoutParams(LayoutParams.MATCH_PARENT, 1254 LayoutParams.MATCH_PARENT)); 1255 } 1256 1257 for (int i = 0; i < mNumAppsPages; ++i) { 1258 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1259 setupPage(layout); 1260 addView(layout); 1261 } 1262 } 1263 1264 @Override 1265 public void syncPageItems(int page, boolean immediate) { 1266 if (page < mNumAppsPages) { 1267 syncAppsPageItems(page, immediate); 1268 } else { 1269 syncWidgetPageItems(page - mNumAppsPages, immediate); 1270 } 1271 } 1272 1273 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1274 // it is in the z-order. This is important to insure touch events are handled correctly. 1275 View getPageAt(int index) { 1276 return getChildAt(getChildCount() - index - 1); 1277 } 1278 1279 @Override 1280 protected int indexToPage(int index) { 1281 return getChildCount() - index - 1; 1282 } 1283 1284 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1285 @Override 1286 protected void screenScrolled(int screenCenter) { 1287 super.screenScrolled(screenCenter); 1288 1289 for (int i = 0; i < getChildCount(); i++) { 1290 View v = getPageAt(i); 1291 if (v != null) { 1292 float scrollProgress = getScrollProgress(screenCenter, v, i); 1293 1294 float interpolatedProgress = 1295 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1296 float scale = (1 - interpolatedProgress) + 1297 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1298 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1299 1300 float alpha; 1301 1302 if (!LauncherApplication.isScreenLarge() || scrollProgress < 0) { 1303 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1304 1 - Math.abs(scrollProgress)) : 1.0f; 1305 } else { 1306 // On large screens we need to fade the page as it nears its leftmost position 1307 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1308 } 1309 1310 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1311 int pageWidth = v.getMeasuredWidth(); 1312 int pageHeight = v.getMeasuredHeight(); 1313 1314 if (PERFORM_OVERSCROLL_ROTATION) { 1315 if (i == 0 && scrollProgress < 0) { 1316 // Overscroll to the left 1317 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1318 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1319 scale = 1.0f; 1320 alpha = 1.0f; 1321 // On the first page, we don't want the page to have any lateral motion 1322 translationX = 0; 1323 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1324 // Overscroll to the right 1325 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1326 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1327 scale = 1.0f; 1328 alpha = 1.0f; 1329 // On the last page, we don't want the page to have any lateral motion. 1330 translationX = 0; 1331 } else { 1332 v.setPivotY(pageHeight / 2.0f); 1333 v.setPivotX(pageWidth / 2.0f); 1334 v.setRotationY(0f); 1335 } 1336 } 1337 1338 v.setTranslationX(translationX); 1339 v.setScaleX(scale); 1340 v.setScaleY(scale); 1341 v.setAlpha(alpha); 1342 1343 // If the view has 0 alpha, we set it to be invisible so as to prevent 1344 // it from accepting touches 1345 if (alpha < ViewConfiguration.ALPHA_THRESHOLD) { 1346 v.setVisibility(INVISIBLE); 1347 } else if (v.getVisibility() != VISIBLE) { 1348 v.setVisibility(VISIBLE); 1349 } 1350 } 1351 } 1352 } 1353 1354 protected void overScroll(float amount) { 1355 acceleratedOverScroll(amount); 1356 } 1357 1358 /** 1359 * Used by the parent to get the content width to set the tab bar to 1360 * @return 1361 */ 1362 public int getPageContentWidth() { 1363 return mContentWidth; 1364 } 1365 1366 @Override 1367 protected void onPageEndMoving() { 1368 super.onPageEndMoving(); 1369 1370 // We reset the save index when we change pages so that it will be recalculated on next 1371 // rotation 1372 mSaveInstanceStateItemIndex = -1; 1373 } 1374 1375 /* 1376 * AllAppsView implementation 1377 */ 1378 @Override 1379 public void setup(Launcher launcher, DragController dragController) { 1380 mLauncher = launcher; 1381 mDragController = dragController; 1382 } 1383 @Override 1384 public void zoom(float zoom, boolean animate) { 1385 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1386 } 1387 @Override 1388 public boolean isVisible() { 1389 return (getVisibility() == VISIBLE); 1390 } 1391 @Override 1392 public boolean isAnimating() { 1393 return false; 1394 } 1395 @Override 1396 public void setApps(ArrayList<ApplicationInfo> list) { 1397 mApps = list; 1398 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1399 updatePageCounts(); 1400 1401 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1402 // request a layout to do this test and invalidate the page data when ready. 1403 if (testDataReady()) requestLayout(); 1404 } 1405 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1406 // We add it in place, in alphabetical order 1407 int count = list.size(); 1408 for (int i = 0; i < count; ++i) { 1409 ApplicationInfo info = list.get(i); 1410 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1411 if (index < 0) { 1412 mApps.add(-(index + 1), info); 1413 } 1414 } 1415 } 1416 @Override 1417 public void addApps(ArrayList<ApplicationInfo> list) { 1418 addAppsWithoutInvalidate(list); 1419 updatePageCounts(); 1420 invalidatePageData(); 1421 } 1422 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1423 ComponentName removeComponent = item.intent.getComponent(); 1424 int length = list.size(); 1425 for (int i = 0; i < length; ++i) { 1426 ApplicationInfo info = list.get(i); 1427 if (info.intent.getComponent().equals(removeComponent)) { 1428 return i; 1429 } 1430 } 1431 return -1; 1432 } 1433 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1434 // loop through all the apps and remove apps that have the same component 1435 int length = list.size(); 1436 for (int i = 0; i < length; ++i) { 1437 ApplicationInfo info = list.get(i); 1438 int removeIndex = findAppByComponent(mApps, info); 1439 if (removeIndex > -1) { 1440 mApps.remove(removeIndex); 1441 } 1442 } 1443 } 1444 @Override 1445 public void removeApps(ArrayList<ApplicationInfo> list) { 1446 removeAppsWithoutInvalidate(list); 1447 updatePageCounts(); 1448 invalidatePageData(); 1449 } 1450 @Override 1451 public void updateApps(ArrayList<ApplicationInfo> list) { 1452 // We remove and re-add the updated applications list because it's properties may have 1453 // changed (ie. the title), and this will ensure that the items will be in their proper 1454 // place in the list. 1455 removeAppsWithoutInvalidate(list); 1456 addAppsWithoutInvalidate(list); 1457 updatePageCounts(); 1458 1459 invalidatePageData(); 1460 } 1461 1462 @Override 1463 public void reset() { 1464 // If we have reset, then we should not continue to restore the previous state 1465 mSaveInstanceStateItemIndex = -1; 1466 1467 AppsCustomizeTabHost tabHost = getTabHost(); 1468 String tag = tabHost.getCurrentTabTag(); 1469 if (tag != null) { 1470 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1471 tabHost.setCurrentTabFromContent(ContentType.Applications); 1472 } 1473 } 1474 1475 if (mCurrentPage != 0) { 1476 invalidatePageData(0); 1477 } 1478 } 1479 1480 private AppsCustomizeTabHost getTabHost() { 1481 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1482 } 1483 1484 @Override 1485 public void dumpState() { 1486 // TODO: Dump information related to current list of Applications, Widgets, etc. 1487 ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); 1488 dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); 1489 } 1490 1491 private void dumpAppWidgetProviderInfoList(String tag, String label, 1492 ArrayList<Object> list) { 1493 Log.d(tag, label + " size=" + list.size()); 1494 for (Object i: list) { 1495 if (i instanceof AppWidgetProviderInfo) { 1496 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1497 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1498 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1499 + " initialLayout=" + info.initialLayout 1500 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1501 } else if (i instanceof ResolveInfo) { 1502 ResolveInfo info = (ResolveInfo) i; 1503 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1504 + info.icon); 1505 } 1506 } 1507 } 1508 1509 @Override 1510 public void surrender() { 1511 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1512 // should stop this now. 1513 1514 // Stop all background tasks 1515 cancelAllTasks(); 1516 } 1517 1518 @Override 1519 public void iconPressed(PagedViewIcon icon) { 1520 // Reset the previously pressed icon and store a reference to the pressed icon so that 1521 // we can reset it on return to Launcher (in Launcher.onResume()) 1522 if (mPressedIcon != null) { 1523 mPressedIcon.resetDrawableState(); 1524 } 1525 mPressedIcon = icon; 1526 } 1527 1528 public void resetDrawableState() { 1529 if (mPressedIcon != null) { 1530 mPressedIcon.resetDrawableState(); 1531 mPressedIcon = null; 1532 } 1533 } 1534 1535 /* 1536 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1537 * widget previews in the background with the AsyncTasks. 1538 */ 1539 final static int sLookBehindPageCount = 2; 1540 final static int sLookAheadPageCount = 2; 1541 protected int getAssociatedLowerPageBound(int page) { 1542 final int count = getChildCount(); 1543 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1544 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1545 return windowMinIndex; 1546 } 1547 protected int getAssociatedUpperPageBound(int page) { 1548 final int count = getChildCount(); 1549 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1550 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1551 count - 1); 1552 return windowMaxIndex; 1553 } 1554 1555 @Override 1556 protected String getCurrentPageDescription() { 1557 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1558 int stringId = R.string.default_scroll_format; 1559 int count = 0; 1560 1561 if (page < mNumAppsPages) { 1562 stringId = R.string.apps_customize_apps_scroll_format; 1563 count = mNumAppsPages; 1564 } else { 1565 page -= mNumAppsPages; 1566 stringId = R.string.apps_customize_widgets_scroll_format; 1567 count = mNumWidgetPages; 1568 } 1569 1570 return String.format(mContext.getString(stringId), page + 1, count); 1571 } 1572} 1573