RK 清理后台所有历史App任务

一.OS Android5.1

1.1.应用是否具有android.intent.category.LAUNCHER属性有关，在主Activity有LAUNCHER的前提下，android:excludeFromRecents=“true”,才能达到在最近任务列表中隐藏该应用的目的

1.2.frameworks\base\packages\SystemUI\src\com\android\systemui\statusbar\oswin\RecentAppManager.java

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public void removeRecentApp(String packName){     ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);     PackageManager pm = mContext.getApplicationContext().getPackageManager();     List<ActivityManager.RecentTaskInfo> appTask = am.getRecentTasks(50,ActivityManager.RECENT_WITH_EXCLUDED|ActivityManager.RECENT_IGNORE_UNAVAILABLE);     if(!appTask.isEmpty()){         try {             for(ActivityManager.RecentTaskInfo ra : appTask){                 Intent intent = new Intent(ra.baseIntent);                 if((isCurrentHomeActivity(intent.getComponent().getPackageName(), null))){                     continue;                 }                   if(intent.getComponent().getPackageName().equals(packName)){                     int persistentId = ra.persistentId; // pid                     Log.d(TAG, "removeRecentApp --> packName:" + packName);                     am.removeTask(persistentId/*, ActivityManager.REMOVE_TASK_KILL_PROCESS*/);                 }             }         } catch (Exception e) {             e.printStackTrace();         }      } }     public void clearRunningTasks(){     ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);     List<ActivityManager.RecentTaskInfo> run = am.getRecentTasks(512, ActivityManager.RECENT_IGNORE_UNAVAILABLE);     PackageManager pm =mContext.getPackageManager();     try {         for(ActivityManager.RecentTaskInfo ra : run){             Intent intent = new Intent(ra.baseIntent);             if((isCurrentHomeActivity(intent.getComponent().getPackageName(), null))                     ||(intent.getComponent().getPackageName().equals("com.android.launcher"))                     || (intent.getComponent().getPackageName().equals("xxxx.xxxx.xxx"))){              continue;             }                 int persistentId = ra.persistentId;             am.removeTask(persistentId/*, ActivityManager.REMOVE_TASK_KILL_PROCESS*/);          Toast.makeText(mContext, "Clear Recent APP", 500).show();         }     } catch (Exception e) {        e.printStackTrace();     } }

1.3. 发送广播 清理后台所有历史App任务

frameworks\base\packages\SystemUI\src\com\android\systemui\recent\CloseTaskReceiver.java

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package com.android.systemui.recent;   import com.android.systemui.recent.RecentsPanelView; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.util.Log; import android.app.ActivityManager; import android.content.pm.PackageManager;   import java.util.List;   public class CloseTaskReceiver  extends BroadcastReceiver {       private  Context mContext;     private  String packName ="bd.nj.onetoonecall";     static final String BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";       @Override     public void onReceive(Context context, Intent intent) {         mContext = context;         String action = intent.getAction();         if (BOOT_COMPLETED.equals(action)){             Log.d("gatsby","BOOT_COMPLETED removeRecentApp");             removeRecentApp();         }         if (("com.xinhua.closeallapp").equals(action)) {              Log.d("gatsby","com.xinhua.closeallapp");              removeRecentApp();         }     }       public void removeRecentApp(){         ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);         PackageManager pm = mContext.getApplicationContext().getPackageManager();         List<ActivityManager.RecentTaskInfo> appTask = am.getRecentTasks(50,ActivityManager.RECENT_WITH_EXCLUDED|ActivityManager.RECENT_IGNORE_UNAVAILABLE);         if(!appTask.isEmpty()){             try {                 for(ActivityManager.RecentTaskInfo ra : appTask){                     Intent intent = new Intent(ra.baseIntent);                     if(!intent.getComponent().getPackageName().equals(packName)){                         int persistentId = ra.persistentId; // pid                         am.removeTask(persistentId/*, ActivityManager.REMOVE_TASK_KILL_PROCESS*/);                     }else{                         Log.d("gatsby", "removeRecentApp --> packName:" + packName);                     }                 }             } catch (Exception e) {                 e.printStackTrace();             }         }     } }

 1.4.清单文件 自定义广播

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<receiver         android:name=".recent.CloseTaskReceiver">         <intent-filter>             <action android:name="com.xinhua.closeallapp" />     <action android:name="android.intent.action.BOOT_COMPLETED" />         </intent-filter>     </receiver>