Java tutorial
//package com.java2s; //License from project: Apache License import java.util.List; import android.app.ActivityManager; import android.app.ActivityManager.RunningAppProcessInfo; import android.content.Context; public class Main { public static int getRunningProcessNumber(Context context) { ActivityManager am = (ActivityManager) context.getSystemService(context.ACTIVITY_SERVICE); List<RunningAppProcessInfo> runningAppProcesses = am.getRunningAppProcesses(); return runningAppProcesses.size(); } }