Java tutorial
//package com.java2s; /* * Copyright 2014 Siyuan Wang (easy0519@gmail.com) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static boolean isWifiAvailable(final Context context) { if (context != null) { final ConnectivityManager connManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo[] connections = connManager.getAllNetworkInfo(); for (NetworkInfo netInfo : connections) { if (netInfo != null) { boolean connected = netInfo.isConnected(); int connectType = netInfo.getType(); if (connected) if (connectType == ConnectivityManager.TYPE_WIFI || connectType == ConnectivityManager.TYPE_ETHERNET) return true; } } } return false; } }