asp.net中的移动设备检测

Question

以下是移动设备检测代码,其包含三种不同的条件

if (Request.Browser.IsMobileDevice)
{
   //Do Something
}
else if (((System.Web.Configuration.HttpCapabilitiesBase)myBrowserCaps).IsMobileDevice)
{
  //Do Something
}
else if (IsMobileDevice(mobileDevices))
{
  //Do Something
}

public bool IsMobileDevice()
{
     private static string[] mobileDevices = new string[] {"iphone","ppc"
                                                   "windows ce","blackberry",
                                                   "opera mini","mobile","palm"
                                                   "portable","opera mobi" };

         string userAgent = Request.UserAgent.ToString().ToLower();
         return mobileDevices.Any(x => userAgent.Contains(x));
 }

我被迫写了三个条件,因为他们没有使用某些设备.

有谁能建议更好的方法？

Answer 1

从以下代码中获取并更改代码:http://detectmobilebrowsers.com/

public static class Utils
{    
    // update : 5/April/2018
    static Regex MobileCheck = new Regex(@"(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Compiled);
    static Regex MobileVersionCheck = new Regex(@"1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-", RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Compiled);

    public static bool fBrowserIsMobile()
    {
        Debug.Assert(HttpContext.Current != null);

        if (HttpContext.Current.Request != null && HttpContext.Current.Request.ServerVariables["HTTP_USER_AGENT"] != null)
        {
            var u = HttpContext.Current.Request.ServerVariables["HTTP_USER_AGENT"].ToString();

            if (u.Length < 4)
                return false;

            if (MobileCheck.IsMatch(u) || MobileVersionCheck.IsMatch(u.Substring(0, 4)))
                return true;
        }

        return false;
    }
}

这就是你怎么称呼它.

if (Utils.fBrowserIsMobile())
{
    // go to mobile pages
}

我从代码中改变了什么 http://detectmobilebrowsers.com/

• 使静态和符合正则表达式以获得更快的检查速度.
• 修复u小于4个字符的情况.
• 其他检查.

使用缓存

这段代码很快,一个技巧是我们已经制作了静态和预编译正则表达式.我在第一次检查后建议将结果保存在用户会话中并使用更快的会话变量.

Answer 2

这段代码适用于我的情况。

public void IsMobileBrowser()
{
    String labelText = "";
    System.Web.HttpBrowserCapabilities myBrowserCaps = Request.Browser;
    if (((System.Web.Configuration.HttpCapabilitiesBase)myBrowserCaps).IsMobileDevice)
    {
        labelText = "Browser is a mobile device.";
    }
    else
    {
        labelText = "Browser is not a mobile device.";
    }
    ScriptManager.RegisterStartupScript(this, this.GetType(), "", "alert('"+ labelText + "');", true);
}

参考：HttpCapabilitiesBase.IsMobileDevice 属性

Answer 3

我正在使用 DeviceDetector.NET，因为我经常还需要将智能手机和平板电脑分开

安装它 Install-Package DeviceDetector.NET

然后像这样使用它

DeviceDetectorSettings.RegexesDirectory = "C:\\DeviceDetector.NET.3.11.4\\";
var dd = new DeviceDetector(Request.UserAgent);
dd.Parse();

var device = dd.GetDeviceName();

if(device == "tablet") {}
if(device == "smartphone") {}
if(device == "desktop") {}

/**
Possible returns
--
desktop
smartphone
tablet
feature phone
console
tv
car browser
smart display
camera
portable media player
phablet
**/

正则表达式可以在包目录中找到