Based on the User Agent you've given, I've managed to get the device recognised as a mobile device using www.detectmobilebrowsers.com. It uses a Regex to evaluate the user agent and has many examples posted in various languages.
I've adapted the example into a method that you can call;
public bool DeviceIsMobile(string userAgent)
{
Regex regex1 = 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|phone)|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline);
Regex regex2 = 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);
if ((regex1.IsMatch(userAgent) || regex2.IsMatch(userAgent.Substring(0, 4))))
{
return true;
}
return false;
}
And you can get the User Agent with;
HttpContext.Current.Request.UserAgent
MVC3
You could write a custom ViewEngine to perform this check and automatically show the .Mobile.cshtml view. Scott Hanselman did a good post on how to write a mobile-aware ViewEngine - adapting this should get you what you need;
public class MobileRazorViewEngine : RazorViewEngine
{
public override ViewEngineResult FindView(ControllerContext controllerContext,
string viewName, string masterName, bool useCache)
{
string userAgent = controllerContext.HttpContext.Request.UserAgent;
string overrideViewName = DeviceIsMobile(userAgent) ? viewName + ".Mobile" : viewName;
ViewEngineResult result = NewFindView(controllerContext, overrideViewName, masterName, useCache);
// If we're looking for a Mobile view and couldn't find it try again without modifying the viewname
if (overrideViewName.Contains(".Mobile") && (result == null || result.View == null))
{
result = NewFindView(controllerContext, viewName, masterName, useCache);
}
return result;
}
private ViewEngineResult NewFindView(ControllerContext controllerContext, string viewName, string masterName, bool useCache)
{
// Get the name of the controller from the path
string controller = controllerContext.RouteData.Values["controller"].ToString();
string area = "";
try
{
area = controllerContext.RouteData.DataTokens["area"].ToString();
}
catch
{
}
// Create the key for caching purposes
string keyPath = Path.Combine(area, controller, viewName);
// Try the cache
if (useCache)
{
//If using the cache, check to see if the location is cached.
string cacheLocation = ViewLocationCache.GetViewLocation(controllerContext.HttpContext, keyPath);
if (!string.IsNullOrWhiteSpace(cacheLocation))
{
return new ViewEngineResult(CreateView(controllerContext, cacheLocation, masterName), this);
}
}
// Remember the attempted paths, if not found display the attempted paths in the error message.
var attempts = new List<string>();
string[] locationFormats = string.IsNullOrEmpty(area) ? ViewLocationFormats : AreaViewLocationFormats;
// for each of the paths defined, format the string and see if that path exists. When found, cache it.
foreach (string rootPath in locationFormats)
{
string currentPath = string.IsNullOrEmpty(area) ? string.Format(rootPath, viewName, controller) : string.Format(rootPath, viewName, controller, area);
if (FileExists(controllerContext, currentPath))
{
ViewLocationCache.InsertViewLocation(controllerContext.HttpContext, keyPath, currentPath);
return new ViewEngineResult(CreateView(controllerContext, currentPath, masterName), this);
}
// If not found, add to the list of attempts.
attempts.Add(currentPath);
}
// if not found by now, simply return the attempted paths.
return new ViewEngineResult(attempts.Distinct().ToList());
}
}
To use this, you need to add the ViewEngine to your App_Start and use;
ViewEngines.Engines.Add(new MobileRazorViewEngine());
MVC4
As pointed out by Andrus, the above answer using ViewEngines is targeted towards MVC3. In MVC4, you could extend DefaultDisplayMode to write your own custom check for mobile;
public class RegexMobileDisplay : DefaultDisplayMode
{
public RegexMobileDisplay() : base("Mobile")
{
ContextCondition = context => DeviceIsMobile(context.Request.UserAgent);
}
}
And registering this in App_Start;
DisplayModeProvider.Instance.Modes.Insert(0, new RegexMobileDisplay());
I hope this helps.
Matt
