How to style MAUI ToolbarItems height and alignment on windows and android

Question

It is possible to style Toolbar with ToolbarHandler but how is ToolbarItems and Tollbar height styled .

As image below show the ToolbarItem is not effected by ToolbarHandler settings on Windows and ToolbarHeight is not changed on Android

Code:

        public static MauiApp CreateMauiApp()
        {
        // https://github.com/dotnet/maui/issues/12063
        ToolbarHandler.Mapper.Add("FixPlacement", (handler, view) =>
        {
#if WINDOWS
            handler.PlatformView.DefaultLabelPosition = Microsoft.UI.Xaml.Controls.CommandBarDefaultLabelPosition.Right;
            handler.PlatformView.VerticalAlignment = Microsoft.UI.Xaml.VerticalAlignment.Top;
            handler.PlatformView.Height = 35;
            handler.PlatformView.Padding = new Microsoft.UI.Xaml.Thickness(0);
            handler.PlatformView.Margin = new Microsoft.UI.Xaml.Thickness(0);
#endif
#if ANDROID
            handler.PlatformView.SetPadding(0, 0, 0, 0);
            handler.PlatformView.TextAlignment = Android.Views.TextAlignment.TextStart;
            handler.PlatformView.SetMinimumHeight(35);
            handler.PlatformView.SetTitleMargin(0, 0, 0, 0);
#endif
        });
...

XAML:

    <Shell.TitleView>
        <Label Text="Test Title View" FontSize="8" HeightRequest="35"  VerticalOptions="Center" Margin="0" Padding="0"  ></Label>
    </Shell.TitleView>

    <Shell.ToolbarItems>
        <ToolbarItem>
            <ToolbarItem.IconImageSource>
                <FontImageSource Glyph="A" Color="BlanchedAlmond" Size="8"/>
            </ToolbarItem.IconImageSource>
        </ToolbarItem>
    </Shell.ToolbarItems>

Windows Screen Dump

Android Screen Dump

Answer 1

Hello,

After investigation, it was not feasible to modify the ToolbarItem in the handler.

The reason is that when using the handler, the ToolbarItem is already in the created state, but according to the ToolbarItem Class document, any changes will be ignored after the ToolbarItem is created.

Any changes made to the properties of the toolbar item after it has been added will be ignored.

Best Regards,

Alec Liu.

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