Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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.*;

public class Main {
    /**
     * Checks if we are online. Note that an internet connection might be reported,
     * but but that does not necessarily mean it's usable (eg. VPN, no DNS, ...)
     */
    public static boolean hasConnection(Context applicationContext) {

        ConnectivityManager connectivityManager = (ConnectivityManager) applicationContext
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
        if (activeNetworkInfo == null || !activeNetworkInfo.isConnectedOrConnecting())
            return false;
        return true;
    }
}