Button not showing when under a CollectionView in StackLayout on iOS

[zuzannaczaja]

Description

I have problem with Button under CollectionView. When I have Button under CollectionView, button isn't visible.

For example:

    <StackLayout Orientation="Vertical">
        <CollectionView ItemsSource="{Binding ViewModel}"></CollectionView>
        <Button Text="ButtonName"></Button>
    </StackLayout>

When I have CollectionView under Button, button is visible.

For example:

    <StackLayout Orientation="Vertical">
        <Button Text="ButtonName"></Button>
        <CollectionView ItemsSource="{Binding ViewModel}"></CollectionView>
    </StackLayout>

On Windows and Android platform I don't have this problem.

Steps to Reproduce

1. Create project.
2. Paste first example to page or view.
3. Run project on iOS platform.
4. Replace the first example with a second example.
5. Run project on iOS platform.

Version with bug

6.0 Release Candidate 2 or older

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS 15.5

Did you find any workaround?

No response

Relevant log output

No response

[jfversluis]

You mention 6.0 Release Candidate 2 or older as the version, is that correct? What version of Visual Studio are you using? And what does dotnet --version tell you? Make sure there aren't any updates you still need to install.

[ghost]

Hi @zuzannaczaja. We have added the "s/needs-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[jfversluis]

Might be related to #9135

[BlagoCuljak]

Like @jfversluis said, we find the button pushed way down. Set entire stacklayout inside scrollview and then scroll down to empty space, and there is your button.

We are having major issues with this.

[zuzannaczaja]

Like @jfversluis said, we find the button pushed way down. Set entire stacklayout inside scrollview and then scroll down to empty space, and there is your button.

We are having major issues with this.

My version is 6.0.400-preview.22330.6

[EdwardMcFlurry]

Instead of opening a new issue, has this issue being fixed especially on iOS.

[XamlTest]

Verified this on Visual Studio Enterprise 17.7.0 Preview 1.0. Repro on iOS 16.4 with below Project:
9164.zip

[PureWeen]

StackLayout will by design give infinite space to anything that wants it.

This means the CV will just take infinite space and layout all the controls.

If you need to add constraints then use Grid
https://learn.microsoft.com/en-us/dotnet/maui/migration/layouts?view=net-maui-8.0