Platform specific CornerRadius on <Frame> Xamarin.Forms

Question

I'm trying to assign different CornerRadius on iOS and Android like following:

<Frame
    HasShadow="false"
    Padding="10"
    BackgroundColor="Red">
    <Frame.CornerRadius>
        <OnPlatform x:TypeArguments="x:Double">
            <On
                Platform="iOS">20</On>
            <On
                Platform="Android">30</On>
        </OnPlatform>
    </Frame.CornerRadius>
    <Label
        Text="Hello World" />
</Frame>

But getting a

Cannot assign property "CornerRadius": Property does not exists, or is not assignable, or mismatching type between value and property

I've tried x:TypeArguments="Thickness" and x:TypeArguments="x:Int32". Decompiling the Assembly it appears CornerRadius is of type float. However, there is no Float property in x namespace, I mean x:TypeArguments="x:Float" doesn't exists.

Any ideas what I'm doing wrong or this is a bug?

Answer 1

The CornerRadius type is a Single:

<Frame HasShadow="true" OutlineColor="Red">
    <Frame.CornerRadius>
        <OnPlatform x:TypeArguments="x:Single">
            <On Platform="iOS" Value="20"/>
            <On Platform="Android" Value="30"/>
        </OnPlatform>
    </Frame.CornerRadius>
    <Frame.Content>
        <Label Text="Welcome to Xamarin Forms!" VerticalOptions="Center" HorizontalOptions="Center" />
    </Frame.Content>
</Frame>