String getTopActivity()

{

ActivityManager manager = (ActivityManager)getSystemService(ACTIVITY_SERVICE);

List<RunningTaskInfo> runningTaskInfos = manager.getRunningTasks(1);

if(runningTaskInfos != null)

{

mRunningCount = runningTaskInfos.get(0).numRunning;

return (runningTaskInfos.get(0).topActivity).toString();

}

else

return null ;

}