Java tutorial
//package com.java2s; //License from project: Open Source License import android.content.Context; import android.content.ContextWrapper; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { /** * Determines if the network is currently available or not. * * @param context The context with which to access the system connectivity service * @return True if the network is available, false if not */ public static boolean isNetworkAvailable(ContextWrapper context) { ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo network = cm.getActiveNetworkInfo(); return ((network != null) && (network.isConnected())); } }