Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static boolean isconnected(Context applicationContext) { ConnectivityManager cm = (ConnectivityManager) applicationContext .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo activeNW = cm.getActiveNetworkInfo(); boolean isConnected = false; if (activeNW != null) { isConnected = activeNW.isConnectedOrConnecting(); } return isConnected; } }