Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; public class Main { /** * Checks if there is any sort of Internet connection * @param context * the context in which to check Internet state * @return true if connected to Internet, false if not */ public static boolean isOnline(Context context) { ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); if (cm.getActiveNetworkInfo() == null) return false; return cm.getActiveNetworkInfo().isConnected(); } }