Java tutorial
//package com.java2s; //License from project: Open Source License import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static boolean isNetworkAvailable(Context context) { Object connectivityService = context.getSystemService(Context.CONNECTIVITY_SERVICE); ConnectivityManager connectivityManager = (ConnectivityManager) connectivityService; if (connectivityManager == null) { return false; } else { NetworkInfo[] networkInfos = connectivityManager.getAllNetworkInfo(); if (networkInfos != null && networkInfos.length > 0) { for (NetworkInfo networkInfo : networkInfos) { if (networkInfo.getState() == NetworkInfo.State.CONNECTED) { return true; } } } } return false; } }