Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; public class Main { public static boolean checkNetWork(Context context) { boolean newWorkOK = false; ConnectivityManager connectManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (connectManager.getActiveNetworkInfo() != null) { newWorkOK = true; } return newWorkOK; } }