Java tutorial
//package com.java2s; /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static boolean isChargeFreeNetworkAvailable(Context context) { ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo activeNetworkInfo = manager.getActiveNetworkInfo(); return (activeNetworkInfo != null && activeNetworkInfo.isConnected() && (activeNetworkInfo.getType() == ConnectivityManager.TYPE_WIFI || activeNetworkInfo.getType() == ConnectivityManager.TYPE_WIMAX || activeNetworkInfo.getType() == ConnectivityManager.TYPE_ETHERNET)); } }