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 = null; if (manager != null) networkInfo = manager.getActiveNetworkInfo(); if (networkInfo == null) return false; if (networkInfo.isConnected()) return true; return false; } }