title: Xamarin Android lock orientation to portrait on phone only
body: <p>I am trying to lock the orientation of an entire app on phone sized layouts to portrait only but allow both portrait and landscape on tablet sized layouts.</p>
  
  <p>I know that I can attribute the Activity to use a specific orientation but this is applied on both layout sizes.</p>
  
  <pre><code>    [Activity(
          Label = "Brs.Members.Droid"
          , MainLauncher = true
          , Icon = "@mipmap/icon"
          , Theme = "@style/Theme.Splash"
          , NoHistory = true
          , ScreenOrientation = ScreenOrientation.Portrait)]
      public class SplashScreen : MvxSplashScreenActivity
      {
          public SplashScreen() : base(Resource.Layout.SplashScreen)
          {
          }
      }
  </code></pre>
  
  <p>Is there a method to only exclude landscape layouts on phone size devices?</p>