Why does the ImageButton width not adjust to the new width?

[IrisClasson]

I'm migrating an app from Xamarin to MAUI and I'm having layout issues. One of the problems is that the ImageButton doesn't seem to use it's new width when a HeightRequest is set (and AspectFit). The image varies in size and ratio, and therefore a set width isn't an option (the code below is greatly simplified, IRL its a custom control). The original image is large and its source (ImageSource) points to images that have different sizes/aspect ratios).

The questions are:
Why is the behavior different?
How do I fix this?

Example code (original code is complex, its a custom control and we use handlers etc.)

<StackLayout HeightRequest="300" Padding="0,100">
    <Grid BackgroundColor="Aquamarine" HeightRequest="200">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="auto"/>
            <ColumnDefinition Width="100"/>
        </Grid.ColumnDefinitions>
        <ImageButton Source="cup.png"
                     BackgroundColor="HotPink"
                     x:Name="btn"
                     HeightRequest="80" 
                     Aspect="AspectFit" 
                     HorizontalOptions="Start" 
                     VerticalOptions="Start">
        </ImageButton>
        <Label BackgroundColor="Coral" Text="My nice cup" Grid.Column="1"></Label>
    </Grid>
</StackLayout>

MAUI

Xamarin

[xtuzy]

net8pre7 will show image

[IrisClasson]

Thank you! I found a workaround for 7 but will remove the workaround once we upgrade. Happy to see that this has been fixed!

[IrisClasson]

I just tested with the preview, and unfortunately the problem is still there. What seems a bit odd is that the behavior is different if I use a SVG versus a PNG, but neither will set the width to match the height. I'll dig a bit further and hopefully return with more udnerstanding.

[skha83]

I reported a similar issue last week here #16921 . It seems to be a iOS specific problem as Android works just like Xamarin did in the past. Only workaround I found was setting both width and height of the image, but that is not an option if you switch between images with different aspect ratios. This bug ruined a lot of our layouts when we converted from Xamarin to MAUI.