RecentTasksLoader.java revision b0e49fc93c146d7ddc8e1f27ec67306a71168510
1ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka/* 2ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * Copyright (C) 2011 The Android Open Source Project 3ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * 4ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * Licensed under the Apache License, Version 2.0 (the "License"); 5ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * you may not use this file except in compliance with the License. 6ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * You may obtain a copy of the License at 7ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * 8ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * http://www.apache.org/licenses/LICENSE-2.0 9ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * 10ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * Unless required by applicable law or agreed to in writing, software 11ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * distributed under the License is distributed on an "AS IS" BASIS, 12ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * See the License for the specific language governing permissions and 14ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka * limitations under the License. 15ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka */ 16ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 17ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkapackage com.android.systemui.recent; 18ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 19ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.app.ActivityManager; 20ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.content.ComponentName; 21ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.content.Context; 22ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.content.Intent; 23ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.content.pm.ActivityInfo; 24ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.content.pm.PackageManager; 25ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.content.pm.ResolveInfo; 26ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.content.res.Resources; 27ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.graphics.Bitmap; 28ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.graphics.Canvas; 29ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.graphics.drawable.Drawable; 30ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.os.AsyncTask; 31ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.os.Handler; 32ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.os.Process; 3380343f646f9686528212f82163a77ef48e30f4c3Michael Jurkaimport android.os.UserHandle; 34ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport android.util.Log; 35cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurkaimport android.view.MotionEvent; 36cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurkaimport android.view.View; 37ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 38ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport com.android.systemui.R; 39ab48b681401628a191a4a90d4906fa88edde95baMichael Jurkaimport com.android.systemui.statusbar.phone.PhoneStatusBar; 40ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 4199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurkaimport java.util.ArrayList; 4299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurkaimport java.util.List; 4399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurkaimport java.util.concurrent.BlockingQueue; 4499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurkaimport java.util.concurrent.LinkedBlockingQueue; 4599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka 46cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurkapublic class RecentTasksLoader implements View.OnTouchListener { 47ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka static final String TAG = "RecentTasksLoader"; 48b0e49fc93c146d7ddc8e1f27ec67306a71168510John Spurlock static final boolean DEBUG = PhoneStatusBar.DEBUG || false; 49ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 50ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka private static final int DISPLAY_TASKS = 20; 51ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka private static final int MAX_TASKS = DISPLAY_TASKS + 1; // allow extra for non-apps 52ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 53ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka private Context mContext; 54ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka private RecentsPanelView mRecentsPanel; 5580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 5680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka private Object mFirstTaskLock = new Object(); 57cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private TaskDescription mFirstTask; 58cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private boolean mFirstTaskLoaded; 59ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 6099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka private AsyncTask<Void, ArrayList<TaskDescription>, Void> mTaskLoader; 6199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka private AsyncTask<Void, TaskDescription, Void> mThumbnailLoader; 62cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private Handler mHandler; 63ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 64ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka private int mIconDpi; 65ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka private Bitmap mDefaultThumbnailBackground; 6699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka private Bitmap mDefaultIconBackground; 67cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private int mNumTasksInFirstScreenful = Integer.MAX_VALUE; 68cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 69cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private boolean mFirstScreenful; 70cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private ArrayList<TaskDescription> mLoadedTasks; 71cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 72cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private enum State { LOADING, LOADED, CANCELLED }; 73cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private State mState = State.CANCELLED; 74cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 7580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 7680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka private static RecentTasksLoader sInstance; 7780343f646f9686528212f82163a77ef48e30f4c3Michael Jurka public static RecentTasksLoader getInstance(Context context) { 7880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka if (sInstance == null) { 7980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka sInstance = new RecentTasksLoader(context); 80cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 8180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka return sInstance; 82cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 83ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 8480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka private RecentTasksLoader(Context context) { 85ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka mContext = context; 86cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mHandler = new Handler(); 87ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 88ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka final Resources res = context.getResources(); 89ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 90ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka // get the icon size we want -- on tablets, we use bigger icons 91ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka boolean isTablet = res.getBoolean(R.bool.config_recents_interface_for_tablets); 92ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka if (isTablet) { 9343e34f61f0014400583895525fa08274615a21d2Winson Chung ActivityManager activityManager = 9443e34f61f0014400583895525fa08274615a21d2Winson Chung (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); 9543e34f61f0014400583895525fa08274615a21d2Winson Chung mIconDpi = activityManager.getLauncherLargeIconDensity(); 96ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } else { 97ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka mIconDpi = res.getDisplayMetrics().densityDpi; 98ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 99ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 10099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // Render default icon (just a blank image) 10199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka int defaultIconSize = res.getDimensionPixelSize(com.android.internal.R.dimen.app_icon_size); 10299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka int iconSize = (int) (defaultIconSize * mIconDpi / res.getDisplayMetrics().densityDpi); 10399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka mDefaultIconBackground = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 10499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka 105ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka // Render the default thumbnail background 10699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka int thumbnailWidth = 10799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka (int) res.getDimensionPixelSize(com.android.internal.R.dimen.thumbnail_width); 10899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka int thumbnailHeight = 10999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka (int) res.getDimensionPixelSize(com.android.internal.R.dimen.thumbnail_height); 110ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka int color = res.getColor(R.drawable.status_bar_recents_app_thumbnail_background); 111ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 11299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka mDefaultThumbnailBackground = 11399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka Bitmap.createBitmap(thumbnailWidth, thumbnailHeight, Bitmap.Config.ARGB_8888); 114ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka Canvas c = new Canvas(mDefaultThumbnailBackground); 115ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka c.drawColor(color); 116ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 117ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 118cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka public void setRecentsPanel(RecentsPanelView newRecentsPanel, RecentsPanelView caller) { 119cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka // Only allow clearing mRecentsPanel if the caller is the current recentsPanel 120cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (newRecentsPanel != null || mRecentsPanel == caller) { 121cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mRecentsPanel = newRecentsPanel; 122cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (mRecentsPanel != null) { 123cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mNumTasksInFirstScreenful = mRecentsPanel.numItemsInOneScreenful(); 124cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 125cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 126ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 127ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 128412cba8aa10231cdf515d9400a754e8a16a8eb3dMichael Jurka public Bitmap getDefaultThumbnail() { 129412cba8aa10231cdf515d9400a754e8a16a8eb3dMichael Jurka return mDefaultThumbnailBackground; 130412cba8aa10231cdf515d9400a754e8a16a8eb3dMichael Jurka } 131412cba8aa10231cdf515d9400a754e8a16a8eb3dMichael Jurka 13299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka public Bitmap getDefaultIcon() { 13399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka return mDefaultIconBackground; 13499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 13599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka 136cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka public ArrayList<TaskDescription> getLoadedTasks() { 137cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka return mLoadedTasks; 138cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 139cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 140e57922cc7d96620cab0c296e93b2b9b3a471c331Michael Jurka public void remove(TaskDescription td) { 141e57922cc7d96620cab0c296e93b2b9b3a471c331Michael Jurka mLoadedTasks.remove(td); 142e57922cc7d96620cab0c296e93b2b9b3a471c331Michael Jurka } 143e57922cc7d96620cab0c296e93b2b9b3a471c331Michael Jurka 144cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka public boolean isFirstScreenful() { 145cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka return mFirstScreenful; 146cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 147cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 148cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private boolean isCurrentHomeActivity(ComponentName component, ActivityInfo homeInfo) { 149cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (homeInfo == null) { 150cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka final PackageManager pm = mContext.getPackageManager(); 151cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka homeInfo = new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_HOME) 152cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka .resolveActivityInfo(pm, 0); 153cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 154cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka return homeInfo != null 155cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka && homeInfo.packageName.equals(component.getPackageName()) 156cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka && homeInfo.name.equals(component.getClassName()); 157cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 158cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 159cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka // Create an TaskDescription, returning null if the title or icon is null 160ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka TaskDescription createTaskDescription(int taskId, int persistentTaskId, Intent baseIntent, 161cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka ComponentName origActivity, CharSequence description) { 162ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka Intent intent = new Intent(baseIntent); 163ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka if (origActivity != null) { 164ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka intent.setComponent(origActivity); 165ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 166ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka final PackageManager pm = mContext.getPackageManager(); 167ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka intent.setFlags((intent.getFlags()&~Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) 168ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka | Intent.FLAG_ACTIVITY_NEW_TASK); 169ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka final ResolveInfo resolveInfo = pm.resolveActivity(intent, 0); 170ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka if (resolveInfo != null) { 171ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka final ActivityInfo info = resolveInfo.activityInfo; 172ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka final String title = info.loadLabel(pm).toString(); 173ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 17499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (title != null && title.length() > 0) { 175ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka if (DEBUG) Log.v(TAG, "creating activity desc for id=" 176ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka + persistentTaskId + ", label=" + title); 177ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 178ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka TaskDescription item = new TaskDescription(taskId, 179ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka persistentTaskId, resolveInfo, baseIntent, info.packageName, 180ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka description); 181ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka item.setLabel(title); 182ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 183ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka return item; 184ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } else { 185ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka if (DEBUG) Log.v(TAG, "SKIPPING item " + persistentTaskId); 186ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 187ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 188ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka return null; 189ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 190ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 19199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka void loadThumbnailAndIcon(TaskDescription td) { 192ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka final ActivityManager am = (ActivityManager) 193ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka mContext.getSystemService(Context.ACTIVITY_SERVICE); 19499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka final PackageManager pm = mContext.getPackageManager(); 19515491c6a728131e322c45bc440500a8a78e4a410Dianne Hackborn Bitmap thumbnail = am.getTaskTopThumbnail(td.persistentTaskId); 19699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka Drawable icon = getFullResIcon(td.resolveInfo, pm); 197ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 198ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka if (DEBUG) Log.v(TAG, "Loaded bitmap for task " 19915491c6a728131e322c45bc440500a8a78e4a410Dianne Hackborn + td + ": " + thumbnail); 200ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka synchronized (td) { 20115491c6a728131e322c45bc440500a8a78e4a410Dianne Hackborn if (thumbnail != null) { 20215491c6a728131e322c45bc440500a8a78e4a410Dianne Hackborn td.setThumbnail(thumbnail); 203ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } else { 204ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka td.setThumbnail(mDefaultThumbnailBackground); 205ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 20699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (icon != null) { 20799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka td.setIcon(icon); 20899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 20999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka td.setLoaded(true); 210ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 211ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 212ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 213ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka Drawable getFullResDefaultActivityIcon() { 214ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka return getFullResIcon(Resources.getSystem(), 215ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka com.android.internal.R.mipmap.sym_def_app_icon); 216ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 217ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 218ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka Drawable getFullResIcon(Resources resources, int iconId) { 219ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka try { 220ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka return resources.getDrawableForDensity(iconId, mIconDpi); 221ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } catch (Resources.NotFoundException e) { 222ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka return getFullResDefaultActivityIcon(); 223ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 224ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 225ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 226ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka private Drawable getFullResIcon(ResolveInfo info, PackageManager packageManager) { 227ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka Resources resources; 228ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka try { 229ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka resources = packageManager.getResourcesForApplication( 230ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka info.activityInfo.applicationInfo); 231ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } catch (PackageManager.NameNotFoundException e) { 232ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka resources = null; 233ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 234ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka if (resources != null) { 235ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka int iconId = info.activityInfo.getIconResource(); 236ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka if (iconId != 0) { 237ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka return getFullResIcon(resources, iconId); 238ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 239ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 240ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka return getFullResDefaultActivityIcon(); 241ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 242ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 243cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka Runnable mPreloadTasksRunnable = new Runnable() { 244cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka public void run() { 245cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka loadTasksInBackground(); 246cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 247cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka }; 248cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 249cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka // additional optimization when we have software system buttons - start loading the recent 250cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka // tasks on touch down 251cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka @Override 252cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka public boolean onTouch(View v, MotionEvent ev) { 253cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka int action = ev.getAction() & MotionEvent.ACTION_MASK; 254cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (action == MotionEvent.ACTION_DOWN) { 255d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka preloadRecentTasksList(); 256cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } else if (action == MotionEvent.ACTION_CANCEL) { 257d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka cancelPreloadingRecentTasksList(); 258cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } else if (action == MotionEvent.ACTION_UP) { 259cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka // Remove the preloader if we haven't called it yet 260cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mHandler.removeCallbacks(mPreloadTasksRunnable); 261cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (!v.isPressed()) { 262cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka cancelLoadingThumbnailsAndIcons(); 263cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 264cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 265cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 266cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka return false; 267cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 268cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 269d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka public void preloadRecentTasksList() { 270d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka mHandler.post(mPreloadTasksRunnable); 271d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka } 272d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka 273d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka public void cancelPreloadingRecentTasksList() { 274d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka cancelLoadingThumbnailsAndIcons(); 275d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka mHandler.removeCallbacks(mPreloadTasksRunnable); 276d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka } 277d0d4bb84595d48116b3751b14efbc39388a78882Michael Jurka 278cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka public void cancelLoadingThumbnailsAndIcons(RecentsPanelView caller) { 279cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka // Only oblige this request if it comes from the current RecentsPanel 280cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka // (eg when you rotate, the old RecentsPanel request should be ignored) 281cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (mRecentsPanel == caller) { 282cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka cancelLoadingThumbnailsAndIcons(); 283cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 284cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 285cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 286cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 287cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka private void cancelLoadingThumbnailsAndIcons() { 28845eed3c69b718fe5dedaff0322e2ed4c2f55b9d3Michael Jurka if (mRecentsPanel != null && mRecentsPanel.isShowing()) { 28945eed3c69b718fe5dedaff0322e2ed4c2f55b9d3Michael Jurka return; 29045eed3c69b718fe5dedaff0322e2ed4c2f55b9d3Michael Jurka } 29145eed3c69b718fe5dedaff0322e2ed4c2f55b9d3Michael Jurka 29299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (mTaskLoader != null) { 29399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka mTaskLoader.cancel(false); 29499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka mTaskLoader = null; 29599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 296ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka if (mThumbnailLoader != null) { 297ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka mThumbnailLoader.cancel(false); 298ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka mThumbnailLoader = null; 299ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 300cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mLoadedTasks = null; 301cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (mRecentsPanel != null) { 302cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mRecentsPanel.onTaskLoadingCancelled(); 303cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 304cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mFirstScreenful = false; 305cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mState = State.CANCELLED; 306ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 307ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 30880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka private void clearFirstTask() { 30980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka synchronized (mFirstTaskLock) { 31080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka mFirstTask = null; 31180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka mFirstTaskLoaded = false; 31280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 31380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 31480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 31580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka public void preloadFirstTask() { 31680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka Thread bgLoad = new Thread() { 31780343f646f9686528212f82163a77ef48e30f4c3Michael Jurka public void run() { 31880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka TaskDescription first = loadFirstTask(); 31980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka synchronized(mFirstTaskLock) { 32080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka if (mCancelPreloadingFirstTask) { 32180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka clearFirstTask(); 32280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } else { 32380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka mFirstTask = first; 32480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka mFirstTaskLoaded = true; 32580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 32680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka mPreloadingFirstTask = false; 32780343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 32880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 32980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka }; 33080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka synchronized(mFirstTaskLock) { 33180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka if (!mPreloadingFirstTask) { 33280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka clearFirstTask(); 33380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka mPreloadingFirstTask = true; 33480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka bgLoad.start(); 33580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 33680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 33780343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 33880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 33980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka public void cancelPreloadingFirstTask() { 34080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka synchronized(mFirstTaskLock) { 34180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka if (mPreloadingFirstTask) { 34280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka mCancelPreloadingFirstTask = true; 34380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } else { 34480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka clearFirstTask(); 34580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 34680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 34780343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 34880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 34980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka boolean mPreloadingFirstTask; 35080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka boolean mCancelPreloadingFirstTask; 35180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka public TaskDescription getFirstTask() { 35280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka while(true) { 35380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka synchronized(mFirstTaskLock) { 35480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka if (mFirstTaskLoaded) { 35580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka return mFirstTask; 35680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } else if (!mFirstTaskLoaded && !mPreloadingFirstTask) { 35780343f646f9686528212f82163a77ef48e30f4c3Michael Jurka mFirstTask = loadFirstTask(); 35880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka mFirstTaskLoaded = true; 35980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka return mFirstTask; 36080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 36180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 36280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka try { 36380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka Thread.sleep(3); 36480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } catch (InterruptedException e) { 36580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 36680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 36780343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 36880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 36980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka public TaskDescription loadFirstTask() { 37080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka final ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 37180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 37280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka final List<ActivityManager.RecentTaskInfo> recentTasks = am.getRecentTasksForUser( 37380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 1, ActivityManager.RECENT_IGNORE_UNAVAILABLE, UserHandle.CURRENT.getIdentifier()); 37480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka TaskDescription item = null; 37580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka if (recentTasks.size() > 0) { 37680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka ActivityManager.RecentTaskInfo recentInfo = recentTasks.get(0); 37780343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 37880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka Intent intent = new Intent(recentInfo.baseIntent); 37980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka if (recentInfo.origActivity != null) { 38080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka intent.setComponent(recentInfo.origActivity); 38180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 38280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 38380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka // Don't load the current home activity. 38480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka if (isCurrentHomeActivity(intent.getComponent(), null)) { 38580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka return null; 38680343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 38780343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 38880343f646f9686528212f82163a77ef48e30f4c3Michael Jurka // Don't load ourselves 38980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka if (intent.getComponent().getPackageName().equals(mContext.getPackageName())) { 39080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka return null; 39180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 39280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 39380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka item = createTaskDescription(recentInfo.id, 39480343f646f9686528212f82163a77ef48e30f4c3Michael Jurka recentInfo.persistentId, recentInfo.baseIntent, 39580343f646f9686528212f82163a77ef48e30f4c3Michael Jurka recentInfo.origActivity, recentInfo.description); 3962a430cccc2a801da72e212d5c5b6a63676e4860cMichael Jurka if (item != null) { 3972a430cccc2a801da72e212d5c5b6a63676e4860cMichael Jurka loadThumbnailAndIcon(item); 3982a430cccc2a801da72e212d5c5b6a63676e4860cMichael Jurka } 39980343f646f9686528212f82163a77ef48e30f4c3Michael Jurka return item; 40080343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 40180343f646f9686528212f82163a77ef48e30f4c3Michael Jurka return null; 40280343f646f9686528212f82163a77ef48e30f4c3Michael Jurka } 40380343f646f9686528212f82163a77ef48e30f4c3Michael Jurka 40499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka public void loadTasksInBackground() { 405cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka loadTasksInBackground(false); 406cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 407cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka public void loadTasksInBackground(final boolean zeroeth) { 408cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (mState != State.CANCELLED) { 409cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka return; 410cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 411cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mState = State.LOADING; 412cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mFirstScreenful = true; 413cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 41499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka final LinkedBlockingQueue<TaskDescription> tasksWaitingForThumbnails = 41599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka new LinkedBlockingQueue<TaskDescription>(); 41699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka mTaskLoader = new AsyncTask<Void, ArrayList<TaskDescription>, Void>() { 41799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka @Override 41899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka protected void onProgressUpdate(ArrayList<TaskDescription>... values) { 41999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (!isCancelled()) { 42099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka ArrayList<TaskDescription> newTasks = values[0]; 42199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // do a callback to RecentsPanelView to let it know we have more values 42299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // how do we let it know we're all done? just always call back twice 423cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (mRecentsPanel != null) { 424cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mRecentsPanel.onTasksLoaded(newTasks, mFirstScreenful); 425cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 426cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (mLoadedTasks == null) { 427cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mLoadedTasks = new ArrayList<TaskDescription>(); 428cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 429cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mLoadedTasks.addAll(newTasks); 430cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mFirstScreenful = false; 43199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 43299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 43399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka @Override 43499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka protected Void doInBackground(Void... params) { 43599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // We load in two stages: first, we update progress with just the first screenful 43699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // of items. Then, we update with the rest of the items 43799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka final int origPri = Process.getThreadPriority(Process.myTid()); 438252030b79ce10d926f8ed4f752c7ddfa714dc100Glenn Kasten Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 43999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka final PackageManager pm = mContext.getPackageManager(); 44099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka final ActivityManager am = (ActivityManager) 441ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka mContext.getSystemService(Context.ACTIVITY_SERVICE); 442ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 44399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka final List<ActivityManager.RecentTaskInfo> recentTasks = 444d2e99565f5377a9afa839eab738b10e7b5e0a761Amith Yamasani am.getRecentTasks(MAX_TASKS, ActivityManager.RECENT_IGNORE_UNAVAILABLE); 44599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka int numTasks = recentTasks.size(); 44699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka ActivityInfo homeInfo = new Intent(Intent.ACTION_MAIN) 44799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka .addCategory(Intent.CATEGORY_HOME).resolveActivityInfo(pm, 0); 448ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 44999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka boolean firstScreenful = true; 45099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka ArrayList<TaskDescription> tasks = new ArrayList<TaskDescription>(); 451ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 45299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // skip the first task - assume it's either the home screen or the current activity. 453cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka final int first = 0; 45499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka for (int i = first, index = 0; i < numTasks && (index < MAX_TASKS); ++i) { 45599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (isCancelled()) { 45699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka break; 45799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 45899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka final ActivityManager.RecentTaskInfo recentInfo = recentTasks.get(i); 459cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 460cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka Intent intent = new Intent(recentInfo.baseIntent); 461cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (recentInfo.origActivity != null) { 462cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka intent.setComponent(recentInfo.origActivity); 463cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 464cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 465cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka // Don't load the current home activity. 466cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (isCurrentHomeActivity(intent.getComponent(), homeInfo)) { 467cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka continue; 468cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 469cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 470cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka // Don't load ourselves 471cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (intent.getComponent().getPackageName().equals(mContext.getPackageName())) { 472cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka continue; 473cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 474cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 47599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka TaskDescription item = createTaskDescription(recentInfo.id, 47699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka recentInfo.persistentId, recentInfo.baseIntent, 477cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka recentInfo.origActivity, recentInfo.description); 47899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka 47999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (item != null) { 48099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka while (true) { 48199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka try { 48299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka tasksWaitingForThumbnails.put(item); 48399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka break; 48499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } catch (InterruptedException e) { 48599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 48699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 48799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka tasks.add(item); 48899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (firstScreenful && tasks.size() == mNumTasksInFirstScreenful) { 48999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka publishProgress(tasks); 49099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka tasks = new ArrayList<TaskDescription>(); 49199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka firstScreenful = false; 49299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka //break; 49399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 49499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka ++index; 49599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 49699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 497ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 49899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (!isCancelled()) { 49999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka publishProgress(tasks); 50099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (firstScreenful) { 50199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // always should publish two updates 50299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka publishProgress(new ArrayList<TaskDescription>()); 50399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 50499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 505ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 50699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka while (true) { 50799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka try { 50899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka tasksWaitingForThumbnails.put(new TaskDescription()); 50999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka break; 51099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } catch (InterruptedException e) { 51199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 51299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 513ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 51499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka Process.setThreadPriority(origPri); 51599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka return null; 516ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 51799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka }; 51899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka mTaskLoader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); 51999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka loadThumbnailsAndIconsInBackground(tasksWaitingForThumbnails); 520ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 521ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka 52299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka private void loadThumbnailsAndIconsInBackground( 52399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka final BlockingQueue<TaskDescription> tasksWaitingForThumbnails) { 52499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // continually read items from tasksWaitingForThumbnails and load 52599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // thumbnails and icons for them. finish thread when cancelled or there 52699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka // is a null item in tasksWaitingForThumbnails 52799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka mThumbnailLoader = new AsyncTask<Void, TaskDescription, Void>() { 52899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka @Override 52999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka protected void onProgressUpdate(TaskDescription... values) { 53099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (!isCancelled()) { 53199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka TaskDescription td = values[0]; 532cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (td.isNull()) { // end sentinel 533cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mState = State.LOADED; 534cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } else { 535cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (mRecentsPanel != null) { 536cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka mRecentsPanel.onTaskThumbnailLoaded(td); 537cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 538cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka } 53999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 54099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 54199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka @Override 54299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka protected Void doInBackground(Void... params) { 54399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka final int origPri = Process.getThreadPriority(Process.myTid()); 544252030b79ce10d926f8ed4f752c7ddfa714dc100Glenn Kasten Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 54599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka 54699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka while (true) { 54799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka if (isCancelled()) { 54899a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka break; 549ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 55099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka TaskDescription td = null; 55199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka while (td == null) { 55299a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka try { 55399a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka td = tasksWaitingForThumbnails.take(); 55499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } catch (InterruptedException e) { 555ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 556ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 557cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka if (td.isNull()) { // end sentinel 558cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka publishProgress(td); 55999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka break; 56099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 56199a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka loadThumbnailAndIcon(td); 562cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka 563cb2522c86d75fff277dc38ec7e444a5b5f5130eaMichael Jurka publishProgress(td); 56499a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka } 56599a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka 56699a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka Process.setThreadPriority(origPri); 56799a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka return null; 568ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 56999a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka }; 57099a9655b9333c3bff6e462b12baa56a5fcd4cb20Michael Jurka mThumbnailLoader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); 571ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka } 572ab48b681401628a191a4a90d4906fa88edde95baMichael Jurka} 573