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Editorial Team
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Asked: 2026-05-31T18:10:12+00:00

I’m executing the following piece of code: ActivityManager actvityManager = (ActivityManager) this.getSystemService(ACTIVITY_SERVICE); List<RunningTaskInfo> procInfos

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I’m executing the following piece of code:

ActivityManager actvityManager = (ActivityManager) this.getSystemService(ACTIVITY_SERVICE);
List<RunningTaskInfo> procInfos = actvityManager.getRunningTasks(1000);

Then, I kill one process I’m interested in with 

actvityManager.killBackgroundProcesses(process.baseActivity.getPackageName());

where process is an entry from procInfos.

The problem is if I run getRunningTasks again – it would still show the process I (presumably) killed, while a task manager for Android listed that process before calling killBackgroundProcesses and removed it from list after that call.

So, any ideas on how does task manager get its list of running processes?
And is it normal that I have successfully killed 3rd-party process on an unrooted device?

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1 Answer

  1. Editorial Team

    ‘Running’ doesn’t mean that a user started it; it might be listening for events, doing a scheduled background sync or anything else.

    ActivityManager.getRunningTasks() might be closer to what you want, but in essence you are always going to have this problem, because the user is not in full control over what is currently active.

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