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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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killall Command – kill the processes by name. By default, it will send a TERM signal. The killall command can kill multiple processes with a single command. If more than one process runs with that name, all of them will be killed.
You can list running processes using the ps command (ps means process status). The ps command displays your currently running processes in real-time. This will display the process for the current shell with four columns: PID returns the unique process ID.
The killall command is used to kill processes by name. By default, it will send a SIGTERM signal. The killall command can kill multiple processes with a single command.
If it is a process group you want to kill, just use the kill(1) command but instead of giving it a process number, give it the negation of the group number. For example to kill every process in group 5112, use kill -TERM -- -5112 .
'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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