Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static boolean isNetworkAvailable(Context context) { ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkinfo = manager.getActiveNetworkInfo(); if (networkinfo == null || !networkinfo.isAvailable()) { return false; } return true; } }