[Xamarin] Tab resizing on click

[conor-codes]

Platform

• OS: [iOS] (Not tested android)
• Device: Iphone XS
• Sdk vervion: 15.2.0.17
• Xamarin.Forms: 5.0.0.2196

Describe the bug
When having multiple tabs, if one of the tabs has content in a list view / collection view that goes off the screen, once the page is loaded if you click on another tab and go back to the original the tab will reduce in size every time. This doesn't happen on the first load.

Screenshots (if applicable)

[roubachof]

Give a fixed HeightRequest to the TabHostView

[conor-codes]

I have a heightrequest set, it still gives the error:

<tabs:TabHostView x:Name="TabHost"
HeightRequest="50"
BackgroundColor="{StaticResource HighlightBlue}"
SelectedIndex="{Binding Source={x:Reference Switcher}, Path=SelectedIndex, Mode=TwoWay}">
tabs:TabHostView.Tabs
<tabs:UnderlinedTabItem Label="On Demand" Style="{StaticResource TabStyle}"/>
<tabs:UnderlinedTabItem Label="Live Classes" Style="{StaticResource TabStyle}"/>
</tabs:TabHostView.Tabs>
</tabs:TabHostView>

[roubachof]

mmh that's weird, as a workaround try putting it on the UnderlinedTabs as well

[conor-codes]

Still the same result, i'll create a demo project and upload it if that would be any easier?

[Tremco-MBlodgett]

Hey I was playing around with this and there was a similar issue with UWP. Try setting the MinimumHeightRequest on the TabHostView to the same HeightRequest you set.