Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { /** * To check whether current network is wifi. * * @param context context * @return true if network if wifi, otherwise return false */ protected static boolean isWifi(Context context) { if (context == null) { return false; } ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo info = manager.getActiveNetworkInfo(); return info != null && (info.getType() == ConnectivityManager.TYPE_WIFI); } }