Snackbar background color not working on iOS 13.3.1.

[cat0363]

I tried to show a snackbar with background color set like below, but the
background color doesn't work on iOS 13.3.1.

// Create Snackbar
var snackbar = Snackbar.Make(
    "This is test message.",
    action: null,
    actionButtonText: string.Empty,
    duration: new TimeSpan(0, 0, 0, 0, 3500),
    visualOptions: new CommunityToolkit.Maui.Core.SnackbarOptions() {
        BackgroundColor = Colors.Red,
        TextColor = Colors.White 
    },
    anchor: null
);

// Display Snackbar
snackbar.Show();

The above code works as intended on Android, but not on iOS 13.3.1.

The build environment and execution environment are as follows.

.NET MAUI CommunityToolkit: 5.1.0
.NET MAUI: 7.0.81
Target Device OS: iOS 13.3.1

In iOS 13.3.1, the background color is displayed as transparent,
but in iOS 16.3, it is displayed with the specified background color.

[iOS 13.3.1]

[iOS 16.3]

How can I display a snackbar with a background color on iOS 13.3.1?
Thank you.

I uploaded the source code below.
https://github.com/cat0363/MauiComm-IssueSnackbar.git

[pictos]

@cat0363 please open a bug issue, so we can better track it.

[cat0363]

Hi, @pictos
Thank you for your reply.
I have opened this issue as Issue #1160.

[VladislavAntonyuk]

Technically we set background color to
UIStackView:

Maui/src/CommunityToolkit.Maui.Core/Views/Alert/AlertView.macios.cs

Line 95 in 088ef0c

BackgroundColor = VisualOptions.BackgroundColor,

possibly color is not converted correctly from MAUI color to ui color

[cat0363]

Hi, @VladislavAntonyuk
Thank you for suggesting the cause of this problem.
You mean there's a difference in color conversion between iOS versions?