ListView GroupHeaderTemplate with fixed height on iOS
<p>I'm trying to set a variable height list view on iOS. Our code (on the sample project linked and main part below) works fine on Droid, but fails miserably on iOS.
I have tried iOS 9.3 and iOS 10, with forms 2.3.2.127 and latest prerelease 2.3.3.163-pre3.</p>

<pre><code>&lt;ListView Grid.Row="2"
    ItemsSource="{Binding MenuSections}"
    IsGroupingEnabled="True"
    HasUnevenRows="True"
    SeparatorVisibility="Default"
    ItemTapped="ListViewOnItemTapped"&gt;

&lt;ListView.GroupHeaderTemplate&gt;
  &lt;DataTemplate&gt;
    &lt;ViewCell&gt;
        &lt;StackLayout Padding="15,10,15,10"
                     Spacing="0"
                     BackgroundColor="Green"&gt;
            &lt;Label Text="{Binding Name}"
                    LineBreakMode="TailTruncation"
                    TextColor="White"
                    FontSize="14"/&gt;

            &lt;Label Text="{Binding Description}"
                    Margin="0,0,0,10"
                    IsVisible="{Binding HasDescription}"
                    LineBreakMode="WordWrap"
                    TextColor="{StaticResource BSDirtyWhite}"
                    FontSize="11"/&gt;
        &lt;/StackLayout&gt;
    &lt;/ViewCell&gt;
&lt;/DataTemplate&gt;
</code></pre>

<p></p>

<p>I have already removed everything above with only a Label, and got exactly same result. Looks like header height on iOS is fixed to some constant number.</p>

<p>Please find below the screen shots for Droid (working fine) and failed iOS 9.3 and 10.</p>

<p>Any help or workaround is greatly appreciated.
CodeKnox</p>

<p>Droid perfect header:
<a href="https://i.stack.imgur.com/0S42l.png" rel="nofollow"><img src="https://i.stack.imgur.com/0S42l.png" alt="Droid perfect header:"></a></p>

<p>iOS 9 broken header:
<a href="https://i.stack.imgur.com/y7ABb.png" rel="nofollow"><img src="https://i.stack.imgur.com/y7ABb.png" alt="iOS 9 broken header"></a></p>

<p>iOS 10 broken header:
<a href="https://i.stack.imgur.com/XSct7.png" rel="nofollow"><img src="https://i.stack.imgur.com/XSct7.png" alt="iOS 10 broken header"></a></p>

<p>Sample project:
<a href="https://onedrive.live.com/embed?cid=D96C7B6CE19A2F61&amp;resid=D96C7B6CE19A2F61%21374735&amp;authkey=AAabHi6haM6BNmk" rel="nofollow">repro xamarin forms project</a></p>