Android ActivityManager killBackgroundProcess not working

Question

I am using eclipse. I am trying to kill a process in my application. However, in eclipse it does not seem to know the hint for killBackgroundProcess from the ActivityManager and it will not let me proceed. I read that you have to have permissions to kill background processes and already added the permission which it did not recognize either from the manifest. Here is the code that I am trying to use:

ActivityManager activityManager = (ActivityManager)this.getSystemService(ACTIVITY_SERVICE);
activityManager.killBackgroundProcess(myProcessId);

The method signature is "public void killBackgroundProcesses (String packageName)" . Not "public void killBackgroundProcess (int processID)" . — gtiwari333, Oct 14 '11 at 12:05

score 3 · Accepted Answer · answered Sep 04 '10 at 20:23

3

Make sure you are targeting API level 8, as that method was only added in Android 2.2.

answered Sep 04 '10 at 20:23

CommonsWare

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Is there a better way to do this then? should I use the process class? – ngreenwood6 Sep 04 '10 at 20:26
@ngreenwood6: Ordinary Android SDK applications should not be killing processes. – CommonsWare Sep 04 '10 at 21:30

score 2 · Answer 2 · answered Oct 14 '11 at 12:39

The method signature is

public void killBackgroundProcesses (String packageName)

Not

public void killBackgroundProcess (int processID)

The following is working CODE :

public static void killThisPackageIfRunning(final Context context, String packageName){
    ActivityManager activityManager = (ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE);
    activityManager.killBackgroundProcesses(packageName);
}

But this works only for >= API Level 8 as this method was added in Android 2.2.

kyildizoglu · Answer 3 · 2013-03-20T21:22:45.300

0

Be sure that your calling killBackgroundProcesses with the topmost Activity.

edited Mar 20 '13 at 21:22

answered Mar 20 '13 at 21:16

kyildizoglu

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score 0 · Answer 4 · answered May 27 '14 at 03:17

You can try these codes below, it works for me .

public static void clearMemory(Context context) {
        ActivityManager activityManger = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningAppProcessInfo> list = activityManger.getRunningAppProcesses();
        if (list != null)
            for (int i = 0; i < list.size(); i++) {
                ActivityManager.RunningAppProcessInfo apinfo = list.get(i);

                String[] pkgList = apinfo.pkgList;

                if (apinfo.importance > ActivityManager.RunningAppProcessInfo.IMPORTANCE_PERCEPTIBLE ) {
                    for (int j = 0; j < pkgList.length; j++) {
                        activityManger.killBackgroundProcesses(pkgList[j]);
                    }
                }
            }
    }

score 0 · Answer 5 · edited Dec 07 '12 at 18:12

0

The argument is package Name not processId. Try passing it something like:

myActivity.getApplication().getPackageName()

as an argument.

edited Dec 07 '12 at 18:12

Konrad Viltersten

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answered Nov 09 '10 at 22:17

james

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Android ActivityManager killBackgroundProcess not working

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