Java tutorial
//package com.java2s; // Use of this source code is governed by a BSD-style license that can be import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { /** * Returns true if the network is connected. * @param context Context associated with the activity. */ public static boolean isConnected(Context context) { ConnectivityManager connectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo(); return networkInfo != null && networkInfo.isConnected(); } }