Java tutorial
//package com.java2s; //License from project: Apache License import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; import java.nio.channels.NoConnectionPendingException; public class Main { public static boolean checkConnection(Context context) throws NoConnectionPendingException { ConnectivityManager connectivity = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (connectivity == null) { return false; } else { NetworkInfo info = connectivity.getActiveNetworkInfo(); if (info != null) { if (info.getState() == NetworkInfo.State.CONNECTED) { return true; } } } return false; } }