.NET中的移动浏览器设备检测 [英] mobile browser device detection in .NET

问题描述

我刚刚开始创建用WebForms编写的桌面网站的第一个移动版本.

I'm just starting to create my first mobile version of a desktop website that was written in WebForms.

我当前的问题与移动设备/浏览器检测有关.

My current question has to do with mobile device/browser detection.

我要确定的是a)如果您的设备是移动设备b)万一需要什么操作系统(Android/IOS/etc)，以防我需要根据OS进行其他处理，以及c)什么屏幕尺寸(用于加载)不同的样式表)

What I'm trying to determine is a) If your device is mobile b) What OS (Android/IOS/etc) in case I need to handle anything differently based on the OS and c) What screen size (for loading different stylesheets)

推荐答案

通过查看useragent字符串，最简单的检测浏览器类型.该字符串中的关键字将有助于检测浏览器. UserAgentString.com 维护了用户代理字符串的完整列表，但您需要查看的主要内容对于只有几个关键字.

Detecting the type of browser is simplest by looking at the useragent string. Key words in that string will help detect the browser. UserAgentString.com maintains a thorough list of useragent strings, but the main thing you need to look for are only a few keywords.

例如，单词"blackberry"仅在从Blackberry设备浏览时才显示.与iPad和iPhone类似. Android设备均在useragent字符串中显示"android"，但它们通过为手机添加关键字"mobile"来区分平板电脑和手机.

For example, the word "blackberry" only ever shows up when browsing from a Blackberry device. Similar with iPad and iPhone. Android devices all show "android" in the useragent string, but they distinguish between tablets and phones by inclusion of the keyword "mobile" for phones.

这是我们在移动应用程序中检测台式机，手机和平板电脑的方式:

Here's how we detect Desktops, Phones, and Tablets in our mobile application:

    public enum DeviceType
    {
        Desktop,
        Tablet,
        Phone
    }

    public static DeviceType UserAgentToDeviceType(string userAgent)
    {
        if (userAgent.ToLowerInvariant().Contains("blackberry"))
            return DeviceType.Phone;

        if (userAgent.ToLowerInvariant().Contains("iphone"))
            return DeviceType.Phone;

        if (userAgent.ToLowerInvariant().Contains("ipad"))
            return DeviceType.Tablet;

        if (userAgent.ToLowerInvariant().Contains("android"))
        {
            if (userAgent.ToLowerInvariant().Contains("mobile"))
                return DeviceType.Phone;
            else
                return DeviceType.Tablet;
        }

        return DeviceType.Desktop;
    }

如果您使用的是 jQuery Mobile 之类的网站，则该网站将针对移动设备外观进行自定义，而与设备类型无关，它将处理不同设备上JavaScript引擎之间的差异.

If you are using something like jQuery Mobile, the site will be customized for mobile appearance regardless of device type, and it will handle differences between the JavaScript engine on different devices.

这篇关于.NET中的移动浏览器设备检测的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！