Scroll editor in Xamarin Forms into view

Question

Using Xamarin Forms, consider the Xaml below.

Answer 1

Expanding on the answer from @Falko, you can check the platform for iOS since Android handles this as expected natively.

I also added this to the page for quick and dirty orientation via this answer.

static bool IsPortrait(Page p) { return p.Width < p.Height; }

Anyway, I understand that Xamarin are adding some solutions for this soon. For now, though...

protected async void Message_Focused(object sender, EventArgs args)
{
    if (Device.OS == TargetPlatform.iOS)
    {
        //TLR: still need a way to determine the iOS keyboard's height first
        //until then, this is a functional hack

        if (IsPortrait(this))
        {
            KeyboardSpacer.HeightRequest = 165;
        }
        else
        {
            KeyboardSpacer.HeightRequest = 114;
        }
    }
}

protected async void Message_Unfocused(object sender, EventArgs args)
{            
    if (Device.OS == TargetPlatform.iOS)
    {
        KeyboardSpacer.HeightRequest = 0;
    }
}