Reusing Navigation Bar font in Xamarin Forms

Question

We need to add specific buttons to the left hand side of the NavigationBar in a Xamarin Forms View.

That is currently only supported via a TitleView because ContentPage.ContextItems all appear on the right hand side. TitleView means implementing the whole of the Navigation Bar.

I want my TitleView to look as close as possible to the platform specific Navigation Bar. Does anyone know how to get hold of the

Platform title font size
Platform foreground colour that would be used for the Title

I've tried all the NamedFont values and whilst they are close they aren't correct.

I have created a custom Label for used in the TitleView. Below are details of what I tried in the respective renderers

iOS:

I had hoped I could use UINavigationBar.UINavigationBarAppearance to obtain the right Font name, size and Color but I cannot get a populated instance of that. I have tried

UINavigationBar.AppearanceWhenContainedIn(typeof(UINavigationController))

but the Appearance class was not populated

Android

I have tried inflating the standard ActionBar layout and reusing the TextView in there but was unable to get that to work

In iOS you could check the system fonts from https://developer.apple.com/fonts/system-fonts/ — Lucas Zhang, Mar 06 '20 at 05:01
Seeing as I said we're using Xamarin Forms are you suggestion a Custom Renderer, perhaps a NavigationBarLabel control? DO you know if there is an Android way of getting those fonts? I did look at the XF code in Github but couldn't follow it. I'll try again later — Pat Long - Munkii Yebee, Mar 06 '20 at 08:22
Check https://stackoverflow.com/questions/39535475/what-is-the-default-font-family-in-android — Lucas Zhang, Mar 09 '20 at 07:21
Lucas that SO question does not show me the Font Size ad Family that is being used for the Standard TitleView — Pat Long - Munkii Yebee, Mar 10 '20 at 09:30

Reusing Navigation Bar font in Xamarin Forms

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