MainActivity.cs

protected override void OnCreate(Bundle bundle)
{
    base.OnCreate(bundle);

    global::Xamarin.Forms.Forms.Init(this, bundle);

    Xamarin.Forms.Forms.ViewInitialized += (object sender, Xamarin.Forms.ViewInitializedEventArgs e) => {
        if (!string.IsNullOrWhiteSpace(e.View.AutomationId))
        {
            e.NativeView.ContentDescription = e.View.AutomationId;
        }
    };

    LoadApplication(new App());
}