I am accessing user stats in the following ways:
UsageStatsManager userStatsMgr = (UsageStatsManager)getSystemService("usagestats");
List<UsageStats> userStats = mUsageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_BEST, timeStamp - 1000*200, timeStamp)
Seems to work for:
android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP
But I am not sure whether it will continue to work on newer SDK? I see some warning while using this permission, but those were not specific. So I am wondering what exactly these restrictions are?
ActivityManager mgr = (ActivityManager)ctx.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningAppProcessInfo>
processes = manager.getRunningAppProcesses();
app=processes.get(0).processName;
And also
ActivityManager actMgr = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
actMgr.killBackgroundProcesses(process);