Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static boolean isOnline(Context context) { ConnectivityManager conMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo[] networkInfos = conMgr.getAllNetworkInfo(); for (NetworkInfo networkInfo : networkInfos) { if (networkInfo.getState() == NetworkInfo.State.CONNECTED || networkInfo.getState() == NetworkInfo.State.CONNECTING) { return true; } } return false; } }