Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.telephony.TelephonyManager; public class Main { public static boolean isWiFiEnabled(Context context) { ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); return ((cm != null && cm.getActiveNetworkInfo() != null && cm.getActiveNetworkInfo().getState() == NetworkInfo.State.CONNECTED) || tm != null && tm.getNetworkType() == TelephonyManager.NETWORK_TYPE_UMTS); } }