Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; public class Main { public static boolean isNetworkAvailable(final Context context) { final ConnectivityManager connectivityManager = ((ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE)); return connectivityManager.getActiveNetworkInfo() != null && connectivityManager.getActiveNetworkInfo().isConnected(); } }