Android method for determining whether Activity is at the top

This article illustrates Android's method for determining whether Activity is at the top. To share for your reference, the details are as follows:

private boolean isTopActivity(Activity activity)
{
    ActivityManager am = (ActivityManager)getSystemService(ACTIVITY_SERVICE);
    ComponentName cn = am.getRunningTasks(1).get(0).topActivity;
    return cn.getClassName().contains(activity);
}

For more information about Android Activity, please refer to Android Programming: Summary of activity Techniques

I hope this article has been helpful in Android programming.