Java tutorial
//package com.java2s; import java.util.List; import android.app.ActivityManager; import android.content.ComponentName; import android.content.Context; import android.util.Log; public class Main { public static String getTopActivity2(Context ctx) { ActivityManager am = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE); List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(1); Log.d("topActivity", "CURRENT Activity ::" + taskInfo.get(0).topActivity.getClassName()); ComponentName componentInfo = taskInfo.get(0).topActivity; return componentInfo.getPackageName(); } }