public void CheckTop(String packagename,int casenum)

    {

        Context context = getBaseContext();

        ActivityManager am = (ActivityManager) context.

                getSystemService(Activity.ACTIVITY_SERVICE);

        String className = am.getRunningTasks(1).get(0).topActivity.getClassName();

        if(!className.contains(packagename) )

        {

            lo

            Log.d("TAG", " Test fail...");

        }

        else

        {

            Log.d("TAG", " Test pass...");

        }

    }