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Created attachment 22474 [details]
Rendering of layout in the Designer.
I've opened an existing Xamarin.Android project in Visual Studio 2017 Enterprise and opened the layout in the Designer. The Spinner widgets are not being rendered correctly in the Designer (see screenshot designer-version.png).
However, when I run the app on an actual device (Nexux 5), the Spinner widgets are displayed correctly (see screenshot running-version.png).
Attached is a copy of the project (a "drum machine"). I've disabled audio functionality in order to keep the project .zip small enough to attach -- it builds and displays the layout, but that's about it.
Created attachment 22475 [details]
Rendering of the layout on the device.
Created attachment 22476 [details]
The project .zip (audio functionality stripped out)
Created attachment 22477 [details]
I am setting the status of this bug to CONFIRMED as per the following reproduction in https://bugzilla.xamarin.com/show_bug.cgi?id=56859#c2
Here is a screenshot of the same behavior:
The spinners seem to be fairly straight forward:
I also attempted to mess around with the Theme and other various options, but the Spinner View does not seem to render at all.
Microsoft Visual Studio Enterprise 2017
Version 15.2 (26430.14) Release
Microsoft .NET Framework
Installed Version: Enterprise
Xamarin 188.8.131.526 (fec6f88)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin.Android SDK 184.108.40.206 (9dbc4c5)
Xamarin.Android Reference Assemblies and MSBuild support.
Xamarin.iOS and Xamarin.Mac SDK 10.10.0.37 (ad35de4)
Xamarin.iOS and Xamarin.Mac Reference Assemblies and MSBuild support.
Fixed in master/d15-5