Close all recent open/running apps at once button-android

Question

I want to close all recent apps at once. I found the following code, but it only shows recent apps. I want to close all these recent apps.

Show all recent app list code: (but I don't want list i need to close all recent apps)

Class serviceManagerClass = Class.forName("android.os.ServiceManager"); Method getService = serviceManagerClass.getMethod("getService", String.class); IBinder retbinder = (IBinder) getService.invoke(serviceManagerClass, "statusbar"); Class statusBarClass = Class.forName(retbinder.getInterfaceDescriptor()); Object statusBarObject = statusBarClass.getClasses()[0].getMethod("asInterface", IBinder.class).invoke(null, new Object[] { retbinder }); Method clearAll = statusBarClass.getMethod("toggleRecentApps"); clearAll.setAccessible(true); clearAll.invoke(statusBarObject); Toast.makeText(getApplicationContext(), "All recent app closed....", Toast.LENGTH_LONG).show(); 

Answer 1

No, it's not possible to kill & remove from "Recent apps" list user's recent apps, even with Process.killProcess() method. Read these two answers:
- Kill another application on Android?
- How to kill currently running task in android

However, what you can do is to restart the background processes of the recent apps (that's what most TaskKillers from Google Play actually do):

• Add KILL_BACKGROUND_PROCESSES user-permission into your manifest:

  <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES"/> 

• And then killBackgroundProcesses(previously known as restartPackage) for the process/processes you want to "kill" (even though it's not actual killing)

  ActivityManager actvityManager = (ActivityManager)         this.getSystemService( ACTIVITY_SERVICE ); List<ActivityManager.RunningAppProcessInfo> procInfos = actvityManager.getRunningAppProcesses(); for(ActivityManager.RunningAppProcessInfo runningProInfo:procInfos){     if (runningProInfo.processName.equals("PACKAGE_NAME_YOU_WANT_TO_KILL")) {         actvityManager.killBackgroundProcesses(runningProInfo.processName);     } } 

As a result, "killed" apps, no longer presented in the list of running process, they are removed from memory. Apps are still in list of recent apps and you can't do anything with it - see answer clear all recent task Programmaticcally

I hope, it helps.