[Bug] Android NavigationPage.TitleView FillAndExpand not working as expected

[AlleSchonWeg]

Description

If you have this simple xaml:

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="TestApp.Views.TestPage">
  <NavigationPage.TitleView>
    <StackLayout BackgroundColor="Red"
                 VerticalOptions="FillAndExpand"
                 HorizontalOptions="FillAndExpand">
      <Label Text="Text"/>
    </StackLayout>
  </NavigationPage.TitleView>
  <ContentPage.Content>
    <Label Text="LabelText"
           HeightRequest="30"
           WidthRequest="80"
           HorizontalTextAlignment="Center" />
  </ContentPage.Content>
</ContentPage>

the StackLayout should fill the whole space on android.

Expected Behavior

Stacklayout should fill the whole space.

Actual Behavior

See screenshots. On iOS it works as expected.

Basic Information

• Version with issue: 4.8.0.1364
• Last known good version:
• IDE: VS 2019
• Platform Target Frameworks:
  • iOS:
  • Android: Android 9
  • UWP:
• Android Support Library Version:
• Nuget Packages:
• Affected Devices:

Screenshots

iOS:

Android:

Reproduction Link

Workaround

[jsuarezruiz]

Attached a reproduction sample:
Issue12392.zip

[Cfun1]

Maybe this is the same issue why HorizontalOptions="CenterAndExpand" is not working also, found the issue in question #4848.