RecentsPanelView.java revision cfb9f2bca39772aecd072e2a30342a67b6319bbb
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.systemui.recent; 18 19import java.util.ArrayList; 20import java.util.List; 21 22import android.animation.Animator; 23import android.animation.LayoutTransition; 24import android.app.ActivityManager; 25import android.content.Context; 26import android.content.Intent; 27import android.content.pm.ActivityInfo; 28import android.content.pm.PackageManager; 29import android.content.pm.ResolveInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.graphics.Bitmap; 33import android.graphics.BitmapFactory; 34import android.graphics.Canvas; 35import android.graphics.Matrix; 36import android.graphics.Paint; 37import android.graphics.Rect; 38import android.graphics.RectF; 39import android.graphics.Shader.TileMode; 40import android.graphics.drawable.BitmapDrawable; 41import android.graphics.drawable.Drawable; 42import android.net.Uri; 43import android.os.AsyncTask; 44import android.os.Handler; 45import android.os.Process; 46import android.os.SystemClock; 47import android.provider.Settings; 48import android.util.AttributeSet; 49import android.util.DisplayMetrics; 50import android.util.Log; 51import android.view.KeyEvent; 52import android.view.LayoutInflater; 53import android.view.MenuItem; 54import android.view.MotionEvent; 55import android.view.View; 56import android.view.ViewGroup; 57import android.view.animation.AnimationUtils; 58import android.widget.AdapterView; 59import android.widget.AdapterView.OnItemClickListener; 60import android.widget.BaseAdapter; 61import android.widget.HorizontalScrollView; 62import android.widget.ImageView; 63import android.widget.PopupMenu; 64import android.widget.RelativeLayout; 65import android.widget.ScrollView; 66import android.widget.TextView; 67 68import com.android.systemui.R; 69import com.android.systemui.statusbar.StatusBar; 70import com.android.systemui.statusbar.phone.PhoneStatusBar; 71import com.android.systemui.statusbar.tablet.StatusBarPanel; 72import com.android.systemui.statusbar.tablet.TabletStatusBar; 73 74public class RecentsPanelView extends RelativeLayout 75 implements OnItemClickListener, RecentsCallback, StatusBarPanel, Animator.AnimatorListener { 76 static final String TAG = "RecentsListView"; 77 static final boolean DEBUG = TabletStatusBar.DEBUG || PhoneStatusBar.DEBUG || false; 78 private static final int DISPLAY_TASKS = 20; 79 private static final int MAX_TASKS = DISPLAY_TASKS + 1; // allow extra for non-apps 80 private StatusBar mBar; 81 private ArrayList<ActivityDescription> mActivityDescriptions; 82 private AsyncTask<Void, Integer, Void> mThumbnailLoader; 83 private int mIconDpi; 84 private View mRecentsScrim; 85 private View mRecentsGlowView; 86 private ViewGroup mRecentsContainer; 87 private Bitmap mGlowBitmap; 88 // TODO: add these widgets attributes to the layout file 89 private int mGlowBitmapPaddingLeftPx; 90 private int mGlowBitmapPaddingTopPx; 91 private int mGlowBitmapPaddingRightPx; 92 private int mGlowBitmapPaddingBottomPx; 93 private boolean mShowing; 94 private Choreographer mChoreo; 95 private View mRecentsDismissButton; 96 private ActivityDescriptionAdapter mListAdapter; 97 private final Handler mHandler = new Handler(); 98 99 /* package */ final class ActivityDescription { 100 final ActivityManager.RecentTaskInfo recentTaskInfo; 101 final ResolveInfo resolveInfo; 102 int taskId; // application task id for curating apps 103 Intent intent; // launch intent for application 104 Matrix matrix; // arbitrary rotation matrix to correct orientation 105 String packageName; // used to override animations (see onClick()) 106 int position; // position in list 107 108 private Bitmap mThumbnail; // generated by Activity.onCreateThumbnail() 109 private Drawable mIcon; // application package icon 110 private CharSequence mLabel; // application package label 111 112 public ActivityDescription(ActivityManager.RecentTaskInfo _recentInfo, 113 ResolveInfo _resolveInfo, Intent _intent, 114 int _id, int _pos, String _packageName) { 115 recentTaskInfo = _recentInfo; 116 resolveInfo = _resolveInfo; 117 intent = _intent; 118 taskId = _id; 119 position = _pos; 120 packageName = _packageName; 121 } 122 123 public CharSequence getLabel() { 124 return mLabel; 125 } 126 127 public Drawable getIcon() { 128 return mIcon; 129 } 130 131 public void setThumbnail(Bitmap thumbnail) { 132 mThumbnail = compositeBitmap(mGlowBitmap, thumbnail); 133 } 134 135 public Bitmap getThumbnail() { 136 return mThumbnail; 137 } 138 } 139 140 private final class OnLongClickDelegate implements View.OnLongClickListener { 141 View mOtherView; 142 OnLongClickDelegate(View other) { 143 mOtherView = other; 144 } 145 public boolean onLongClick(View v) { 146 return mOtherView.performLongClick(); 147 } 148 } 149 150 /* package */ final static class ViewHolder { 151 View thumbnailView; 152 ImageView thumbnailViewImage; 153 ImageView iconView; 154 TextView labelView; 155 TextView descriptionView; 156 ActivityDescription activityDescription; 157 } 158 159 /* package */ final class ActivityDescriptionAdapter extends BaseAdapter { 160 private LayoutInflater mInflater; 161 162 public ActivityDescriptionAdapter(Context context) { 163 mInflater = LayoutInflater.from(context); 164 } 165 166 public int getCount() { 167 return mActivityDescriptions != null ? mActivityDescriptions.size() : 0; 168 } 169 170 public Object getItem(int position) { 171 return position; // we only need the index 172 } 173 174 public long getItemId(int position) { 175 return position; // we just need something unique for this position 176 } 177 178 public View getView(int position, View convertView, ViewGroup parent) { 179 ViewHolder holder; 180 if (convertView == null) { 181 convertView = mInflater.inflate(R.layout.status_bar_recent_item, null); 182 holder = new ViewHolder(); 183 holder.thumbnailView = convertView.findViewById(R.id.app_thumbnail); 184 holder.thumbnailViewImage = (ImageView) convertView.findViewById( 185 R.id.app_thumbnail_image); 186 holder.iconView = (ImageView) convertView.findViewById(R.id.app_icon); 187 holder.labelView = (TextView) convertView.findViewById(R.id.app_label); 188 holder.descriptionView = (TextView) convertView.findViewById(R.id.app_description); 189 convertView.setTag(holder); 190 } else { 191 holder = (ViewHolder) convertView.getTag(); 192 } 193 194 // activityId is reverse since most recent appears at the bottom... 195 final int activityId = mActivityDescriptions.size() - position - 1; 196 197 final ActivityDescription activityDescription = mActivityDescriptions.get(activityId); 198 holder.thumbnailViewImage.setImageBitmap(activityDescription.getThumbnail()); 199 holder.iconView.setImageDrawable(activityDescription.getIcon()); 200 holder.labelView.setText(activityDescription.getLabel()); 201 holder.descriptionView.setText(activityDescription.recentTaskInfo.description); 202 holder.thumbnailView.setTag(activityDescription); 203 holder.thumbnailView.setOnLongClickListener(new OnLongClickDelegate(convertView)); 204 holder.activityDescription = activityDescription; 205 206 return convertView; 207 } 208 } 209 210 @Override 211 public boolean onKeyUp(int keyCode, KeyEvent event) { 212 if (keyCode == KeyEvent.KEYCODE_BACK && !event.isCanceled()) { 213 show(false, true); 214 return true; 215 } 216 return super.onKeyUp(keyCode, event); 217 } 218 219 public boolean isInContentArea(int x, int y) { 220 // use mRecentsContainer's exact bounds to determine horizontal position 221 final int l = mRecentsContainer.getLeft(); 222 final int r = mRecentsContainer.getRight(); 223 // use surrounding mRecentsGlowView's position in parent determine vertical bounds 224 final int t = mRecentsGlowView.getTop(); 225 final int b = mRecentsGlowView.getBottom(); 226 return x >= l && x < r && y >= t && y < b; 227 } 228 229 public void show(boolean show, boolean animate) { 230 if (animate) { 231 if (mShowing != show) { 232 mShowing = show; 233 if (show) { 234 setVisibility(View.VISIBLE); 235 } 236 mChoreo.startAnimation(show); 237 } 238 } else { 239 mShowing = show; 240 setVisibility(show ? View.VISIBLE : View.GONE); 241 mChoreo.jumpTo(show); 242 } 243 if (show) { 244 setFocusable(true); 245 setFocusableInTouchMode(true); 246 requestFocus(); 247 } 248 } 249 250 public void onAnimationCancel(Animator animation) { 251 } 252 253 public void onAnimationEnd(Animator animation) { 254 if (mShowing) { 255 final LayoutTransition transitioner = new LayoutTransition(); 256 ((ViewGroup)mRecentsContainer).setLayoutTransition(transitioner); 257 createCustomAnimations(transitioner); 258 } else { 259 ((ViewGroup)mRecentsContainer).setLayoutTransition(null); 260 } 261 } 262 263 public void onAnimationRepeat(Animator animation) { 264 } 265 266 public void onAnimationStart(Animator animation) { 267 } 268 269 270 /** 271 * We need to be aligned at the bottom. LinearLayout can't do this, so instead, 272 * let LinearLayout do all the hard work, and then shift everything down to the bottom. 273 */ 274 @Override 275 protected void onLayout(boolean changed, int l, int t, int r, int b) { 276 super.onLayout(changed, l, t, r, b); 277 mChoreo.setPanelHeight(mRecentsContainer.getHeight()); 278 } 279 280 @Override 281 public boolean dispatchHoverEvent(MotionEvent event) { 282 // Ignore hover events outside of this panel bounds since such events 283 // generate spurious accessibility events with the panel content when 284 // tapping outside of it, thus confusing the user. 285 final int x = (int) event.getX(); 286 final int y = (int) event.getY(); 287 if (x >= 0 && x < getWidth() && y >= 0 && y < getHeight()) { 288 return super.dispatchHoverEvent(event); 289 } 290 return true; 291 } 292 293 /** 294 * Whether the panel is showing, or, if it's animating, whether it will be 295 * when the animation is done. 296 */ 297 public boolean isShowing() { 298 return mShowing; 299 } 300 301 public void setBar(StatusBar bar) { 302 mBar = bar; 303 } 304 305 public RecentsPanelView(Context context, AttributeSet attrs) { 306 this(context, attrs, 0); 307 } 308 309 public RecentsPanelView(Context context, AttributeSet attrs, int defStyle) { 310 super(context, attrs, defStyle); 311 312 Resources res = context.getResources(); 313 boolean xlarge = (res.getConfiguration().screenLayout 314 & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE; 315 316 mIconDpi = xlarge ? DisplayMetrics.DENSITY_HIGH : res.getDisplayMetrics().densityDpi; 317 318 mGlowBitmap = BitmapFactory.decodeResource(res, R.drawable.recents_thumbnail_bg); 319 mGlowBitmapPaddingLeftPx = 320 res.getDimensionPixelSize(R.dimen.recents_thumbnail_bg_padding_left); 321 mGlowBitmapPaddingTopPx = 322 res.getDimensionPixelSize(R.dimen.recents_thumbnail_bg_padding_top); 323 mGlowBitmapPaddingRightPx = 324 res.getDimensionPixelSize(R.dimen.recents_thumbnail_bg_padding_right); 325 mGlowBitmapPaddingBottomPx = 326 res.getDimensionPixelSize(R.dimen.recents_thumbnail_bg_padding_bottom); 327 } 328 329 @Override 330 protected void onFinishInflate() { 331 super.onFinishInflate(); 332 mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 333 mRecentsContainer = (ViewGroup) findViewById(R.id.recents_container); 334 mListAdapter = new ActivityDescriptionAdapter(mContext); 335 if (mRecentsContainer instanceof RecentsListView) { 336 RecentsListView listView = (RecentsListView) mRecentsContainer; 337 listView.setAdapter(mListAdapter); 338 listView.setOnItemClickListener(this); 339 listView.setCallback(this); 340 } else if (mRecentsContainer instanceof RecentsHorizontalScrollView){ 341 RecentsHorizontalScrollView scrollView 342 = (RecentsHorizontalScrollView) mRecentsContainer; 343 scrollView.setAdapter(mListAdapter); 344 scrollView.setCallback(this); 345 } else if (mRecentsContainer instanceof RecentsVerticalScrollView){ 346 RecentsVerticalScrollView scrollView 347 = (RecentsVerticalScrollView) mRecentsContainer; 348 scrollView.setAdapter(mListAdapter); 349 scrollView.setCallback(this); 350 } 351 else { 352 throw new IllegalArgumentException("missing RecentsListView/RecentsScrollView"); 353 } 354 355 356 mRecentsGlowView = findViewById(R.id.recents_glow); 357 mRecentsScrim = (View) findViewById(R.id.recents_bg_protect); 358 mChoreo = new Choreographer(this, mRecentsScrim, mRecentsGlowView, this); 359 mRecentsDismissButton = findViewById(R.id.recents_dismiss_button); 360 mRecentsDismissButton.setOnClickListener(new OnClickListener() { 361 public void onClick(View v) { 362 hide(true); 363 } 364 }); 365 366 // In order to save space, we make the background texture repeat in the Y direction 367 if (mRecentsScrim != null && mRecentsScrim.getBackground() instanceof BitmapDrawable) { 368 ((BitmapDrawable) mRecentsScrim.getBackground()).setTileModeY(TileMode.REPEAT); 369 } 370 } 371 372 private void createCustomAnimations(LayoutTransition transitioner) { 373 transitioner.setDuration(200); 374 transitioner.setStartDelay(LayoutTransition.CHANGE_DISAPPEARING, 0); 375 transitioner.setAnimator(LayoutTransition.DISAPPEARING, null); 376 } 377 378 @Override 379 protected void onVisibilityChanged(View changedView, int visibility) { 380 super.onVisibilityChanged(changedView, visibility); 381 if (DEBUG) Log.v(TAG, "onVisibilityChanged(" + changedView + ", " + visibility + ")"); 382 if (visibility == View.VISIBLE && changedView == this) { 383 refreshApplicationList(); 384 } 385 } 386 387 Drawable getFullResDefaultActivityIcon() { 388 return getFullResIcon(Resources.getSystem(), 389 com.android.internal.R.mipmap.sym_def_app_icon); 390 } 391 392 Drawable getFullResIcon(Resources resources, int iconId) { 393 try { 394 return resources.getDrawableForDensity(iconId, mIconDpi); 395 } catch (Resources.NotFoundException e) { 396 return getFullResDefaultActivityIcon(); 397 } 398 } 399 400 private Drawable getFullResIcon(ResolveInfo info, PackageManager packageManager) { 401 Resources resources; 402 try { 403 resources = packageManager.getResourcesForApplication( 404 info.activityInfo.applicationInfo); 405 } catch (PackageManager.NameNotFoundException e) { 406 resources = null; 407 } 408 if (resources != null) { 409 int iconId = info.activityInfo.getIconResource(); 410 if (iconId != 0) { 411 return getFullResIcon(resources, iconId); 412 } 413 } 414 return getFullResDefaultActivityIcon(); 415 } 416 417 private ArrayList<ActivityDescription> getRecentTasks() { 418 ArrayList<ActivityDescription> activityDescriptions = new ArrayList<ActivityDescription>(); 419 final PackageManager pm = mContext.getPackageManager(); 420 final ActivityManager am = (ActivityManager) 421 mContext.getSystemService(Context.ACTIVITY_SERVICE); 422 423 final List<ActivityManager.RecentTaskInfo> recentTasks = 424 am.getRecentTasks(MAX_TASKS, ActivityManager.RECENT_IGNORE_UNAVAILABLE); 425 426 ActivityInfo homeInfo = new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_HOME) 427 .resolveActivityInfo(pm, 0); 428 429 int numTasks = recentTasks.size(); 430 431 // skip the first activity - assume it's either the home screen or the current app. 432 final int first = 1; 433 for (int i = first, index = 0; i < numTasks && (index < MAX_TASKS); ++i) { 434 final ActivityManager.RecentTaskInfo recentInfo = recentTasks.get(i); 435 436 Intent intent = new Intent(recentInfo.baseIntent); 437 if (recentInfo.origActivity != null) { 438 intent.setComponent(recentInfo.origActivity); 439 } 440 441 // Skip the current home activity. 442 if (homeInfo != null 443 && homeInfo.packageName.equals(intent.getComponent().getPackageName()) 444 && homeInfo.name.equals(intent.getComponent().getClassName())) { 445 continue; 446 } 447 448 intent.setFlags((intent.getFlags()&~Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) 449 | Intent.FLAG_ACTIVITY_NEW_TASK); 450 final ResolveInfo resolveInfo = pm.resolveActivity(intent, 0); 451 if (resolveInfo != null) { 452 final ActivityInfo info = resolveInfo.activityInfo; 453 final String title = info.loadLabel(pm).toString(); 454 // Drawable icon = info.loadIcon(pm); 455 Drawable icon = getFullResIcon(resolveInfo, pm); 456 int id = recentInfo.id; 457 if (title != null && title.length() > 0 && icon != null) { 458 if (DEBUG) Log.v(TAG, "creating activity desc for id=" + id + ", label=" + title); 459 ActivityManager.TaskThumbnails thumbs = am.getTaskThumbnails( 460 recentInfo.persistentId); 461 ActivityDescription item = new ActivityDescription(recentInfo, 462 resolveInfo, intent, id, index, info.packageName); 463 activityDescriptions.add(item); 464 ++index; 465 } else { 466 if (DEBUG) Log.v(TAG, "SKIPPING item " + id); 467 } 468 } 469 } 470 return activityDescriptions; 471 } 472 473 ActivityDescription findActivityDescription(int id) 474 { 475 ActivityDescription desc = null; 476 for (int i = 0; i < mActivityDescriptions.size(); i++) { 477 ActivityDescription item = mActivityDescriptions.get(i); 478 if (item != null && item.taskId == id) { 479 desc = item; 480 break; 481 } 482 } 483 return desc; 484 } 485 486 void loadActivityDescription(ActivityDescription ad, int index) { 487 final ActivityManager am = (ActivityManager) 488 mContext.getSystemService(Context.ACTIVITY_SERVICE); 489 final PackageManager pm = mContext.getPackageManager(); 490 ActivityManager.TaskThumbnails thumbs = am.getTaskThumbnails( 491 ad.recentTaskInfo.persistentId); 492 CharSequence label = ad.resolveInfo.activityInfo.loadLabel(pm); 493 Drawable icon = getFullResIcon(ad.resolveInfo, pm); 494 if (DEBUG) Log.v(TAG, "Loaded bitmap for #" + index + " in " 495 + ad + ": " + thumbs.mainThumbnail); 496 synchronized (ad) { 497 ad.mLabel = label; 498 ad.mIcon = icon; 499 ad.setThumbnail(thumbs != null ? thumbs.mainThumbnail : null); 500 } 501 } 502 503 void applyActivityDescription(ActivityDescription ad, int index, boolean anim) { 504 synchronized (ad) { 505 if (mRecentsContainer != null) { 506 ViewGroup container = mRecentsContainer; 507 if (container instanceof HorizontalScrollView 508 || container instanceof ScrollView) { 509 container = (ViewGroup)container.findViewById( 510 R.id.recents_linear_layout); 511 } 512 // Look for a view showing this thumbnail, to update. 513 for (int i=0; i<container.getChildCount(); i++) { 514 View v = container.getChildAt(i); 515 if (v.getTag() instanceof ViewHolder) { 516 ViewHolder h = (ViewHolder)v.getTag(); 517 if (h.activityDescription == ad) { 518 if (DEBUG) Log.v(TAG, "Updatating thumbnail #" + index + " in " 519 + h.activityDescription 520 + ": " + ad.getThumbnail()); 521 h.iconView.setImageDrawable(ad.getIcon()); 522 if (anim) { 523 h.iconView.setAnimation(AnimationUtils.loadAnimation( 524 mContext, R.anim.recent_appear)); 525 } 526 h.iconView.setVisibility(View.VISIBLE); 527 h.labelView.setText(ad.getLabel()); 528 if (anim) { 529 h.labelView.setAnimation(AnimationUtils.loadAnimation( 530 mContext, R.anim.recent_appear)); 531 } 532 h.labelView.setVisibility(View.VISIBLE); 533 Bitmap thumbnail = ad.getThumbnail(); 534 if (thumbnail != null) { 535 // Should remove the default image in the frame 536 // that this now covers, to improve scrolling speed. 537 // That can't be done until the anim is complete though. 538 h.thumbnailViewImage.setImageBitmap(thumbnail); 539 if (anim) { 540 h.thumbnailViewImage.setAnimation(AnimationUtils.loadAnimation( 541 mContext, R.anim.recent_appear)); 542 } 543 h.thumbnailViewImage.setVisibility(View.VISIBLE); 544 } 545 } 546 } 547 } 548 } 549 } 550 } 551 552 private void refreshApplicationList() { 553 if (mThumbnailLoader != null) { 554 mThumbnailLoader.cancel(false); 555 mThumbnailLoader = null; 556 } 557 mActivityDescriptions = getRecentTasks(); 558 mListAdapter.notifyDataSetInvalidated(); 559 if (mActivityDescriptions.size() > 0) { 560 if (DEBUG) Log.v(TAG, "Showing " + mActivityDescriptions.size() + " apps"); 561 updateUiElements(getResources().getConfiguration()); 562 final ArrayList<ActivityDescription> descriptions = mActivityDescriptions; 563 loadActivityDescription(descriptions.get(0), 0); 564 applyActivityDescription(descriptions.get(0), 0, false); 565 if (descriptions.size() > 1) { 566 mThumbnailLoader = new AsyncTask<Void, Integer, Void>() { 567 @Override 568 protected void onProgressUpdate(Integer... values) { 569 final ActivityDescription ad = descriptions.get(values[0]); 570 if (!isCancelled()) { 571 applyActivityDescription(ad, values[0], true); 572 } 573 // This is to prevent the loader thread from getting ahead 574 // of our UI updates. 575 mHandler.post(new Runnable() { 576 @Override public void run() { 577 synchronized (ad) { 578 ad.notifyAll(); 579 } 580 } 581 }); 582 } 583 584 @Override 585 protected Void doInBackground(Void... params) { 586 final int origPri = Process.getThreadPriority(Process.myTid()); 587 Process.setThreadPriority(Process.THREAD_GROUP_BG_NONINTERACTIVE); 588 long nextTime = SystemClock.uptimeMillis(); 589 for (int i=1; i<descriptions.size(); i++) { 590 ActivityDescription ad = descriptions.get(i); 591 loadActivityDescription(ad, i); 592 long now = SystemClock.uptimeMillis(); 593 nextTime += 150; 594 if (nextTime > now) { 595 try { 596 Thread.sleep(nextTime-now); 597 } catch (InterruptedException e) { 598 } 599 } 600 if (isCancelled()) { 601 break; 602 } 603 synchronized (ad) { 604 publishProgress(i); 605 try { 606 ad.wait(500); 607 } catch (InterruptedException e) { 608 } 609 } 610 } 611 Process.setThreadPriority(origPri); 612 return null; 613 } 614 }; 615 mThumbnailLoader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); 616 } 617 } else { 618 // Immediately hide this panel 619 if (DEBUG) Log.v(TAG, "Nothing to show"); 620 hide(false); 621 } 622 } 623 624 private Bitmap compositeBitmap(Bitmap background, Bitmap thumbnail) { 625 Bitmap outBitmap = background.copy(background.getConfig(), true); 626 if (thumbnail != null) { 627 Canvas canvas = new Canvas(outBitmap); 628 Paint paint = new Paint(); 629 paint.setAntiAlias(true); 630 paint.setFilterBitmap(true); 631 paint.setAlpha(255); 632 final int srcWidth = thumbnail.getWidth(); 633 final int srcHeight = thumbnail.getHeight(); 634 if (DEBUG) Log.v(TAG, "Source thumb: " + srcWidth + "x" + srcHeight); 635 canvas.drawBitmap(thumbnail, 636 new Rect(0, 0, srcWidth-1, srcHeight-1), 637 new RectF(mGlowBitmapPaddingLeftPx, mGlowBitmapPaddingTopPx, 638 outBitmap.getWidth() - mGlowBitmapPaddingRightPx, 639 outBitmap.getHeight() - mGlowBitmapPaddingBottomPx), paint); 640 canvas.setBitmap(null); 641 } 642 return outBitmap; 643 } 644 645 private void updateUiElements(Configuration config) { 646 final int items = mActivityDescriptions.size(); 647 648 mRecentsContainer.setVisibility(items > 0 ? View.VISIBLE : View.GONE); 649 mRecentsGlowView.setVisibility(items > 0 ? View.VISIBLE : View.GONE); 650 } 651 652 public void hide(boolean animate) { 653 if (!animate) { 654 setVisibility(View.GONE); 655 } 656 if (mBar != null) { 657 mBar.animateCollapse(); 658 } 659 } 660 661 public void handleOnClick(View view) { 662 ActivityDescription ad = ((ViewHolder) view.getTag()).activityDescription; 663 final Context context = view.getContext(); 664 final ActivityManager am = (ActivityManager) 665 context.getSystemService(Context.ACTIVITY_SERVICE); 666 if (ad.taskId >= 0) { 667 // This is an active task; it should just go to the foreground. 668 am.moveTaskToFront(ad.taskId, ActivityManager.MOVE_TASK_WITH_HOME); 669 } else { 670 Intent intent = ad.intent; 671 intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY 672 | Intent.FLAG_ACTIVITY_TASK_ON_HOME); 673 if (DEBUG) Log.v(TAG, "Starting activity " + intent); 674 context.startActivity(intent); 675 } 676 hide(true); 677 } 678 679 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 680 handleOnClick(view); 681 } 682 683 public void handleSwipe(View view) { 684 ActivityDescription ad = ((ViewHolder) view.getTag()).activityDescription; 685 if (DEBUG) Log.v(TAG, "Jettison " + ad.getLabel()); 686 mActivityDescriptions.remove(ad); 687 688 // Handled by widget containers to enable LayoutTransitions properly 689 // mListAdapter.notifyDataSetChanged(); 690 691 if (mActivityDescriptions.size() == 0) { 692 hide(false); 693 } 694 695 // Currently, either direction means the same thing, so ignore direction and remove 696 // the task. 697 final ActivityManager am = (ActivityManager) 698 mContext.getSystemService(Context.ACTIVITY_SERVICE); 699 am.removeTask(ad.taskId, ActivityManager.REMOVE_TASK_KILL_PROCESS); 700 } 701 702 private void startApplicationDetailsActivity(String packageName) { 703 Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, 704 Uri.fromParts("package", packageName, null)); 705 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 706 getContext().startActivity(intent); 707 } 708 709 public void handleLongPress(final View selectedView, final View anchorView) { 710 PopupMenu popup = new PopupMenu(mContext, anchorView == null ? selectedView : anchorView); 711 popup.getMenuInflater().inflate(R.menu.recent_popup_menu, popup.getMenu()); 712 popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { 713 public boolean onMenuItemClick(MenuItem item) { 714 if (item.getItemId() == R.id.recent_remove_item) { 715 mRecentsContainer.removeViewInLayout(selectedView); 716 } else if (item.getItemId() == R.id.recent_inspect_item) { 717 ViewHolder viewHolder = (ViewHolder) selectedView.getTag(); 718 if (viewHolder != null) { 719 final ActivityDescription ad = viewHolder.activityDescription; 720 startApplicationDetailsActivity(ad.packageName); 721 mBar.animateCollapse(); 722 } else { 723 throw new IllegalStateException("Oops, no tag on view " + selectedView); 724 } 725 } else { 726 return false; 727 } 728 return true; 729 } 730 }); 731 popup.show(); 732 } 733} 734