How to detect which is the current top activity.

Here is one of the way you can detect

 public boolean whatIsCurrentActivity()
 {
  ActivityManager am = (ActivityManager) mContext.getSystemService(mContext.ACTIVITY_SERVICE);
  List ActivityManager.RunningTaskInfo taskInfo = am.getRunningTasks(1);
                if(taskInfo != null ){
                     System.out.println("Top activity - Package name of the process is "+taskInfo.get(0).topActivity.getPackageName() );
        }