Controls showing in designer but not in emulator

问题

This is my first Xamarin app. I have my environment set up in Visual Studio, and have a template project which I can run in the Android emulator.

Having dragged and dropped a couple of controls on to the designer surface, I find that when I run the application in the emulator, neither of the two controls that I have added (a button and a switch) display in the emulator.

I have tried:

Cleaning the solution
Rebuilding the solution
Manually deleting bin and object files
Unchecking 'Use Fast Deployment' in project Android Options
Uninstalling from the emulator

But with the same result each time.

[Project files removed]

Am I missing something?

回答1:

Just downloaded your code and ran it. Uncommenting SetContentView (Resource.Layout.Main); it worked to me.

[Activity(Label = "Tgo.AndroidApp", MainLauncher = true, Icon = "@drawable/icon")]
public class MainActivity : Activity
{
    protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);

        // Set our view from the "main" layout resource
        SetContentView (Resource.Layout.Main);
    }
}

Here a nice guide to get you started with Xamarin Android.