Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static boolean hasNetwork(Context context) { ConnectivityManager connectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (connectivityManager == null) return false; NetworkInfo[] networkInfos = connectivityManager.getAllNetworkInfo(); for (NetworkInfo networkInfo : networkInfos) { if (networkInfo != null && networkInfo.isConnected()) return true; } return false; } }