DrasticPicker 1.0.2

DrasticPicker

Access the SwiftUI Picker controller in .NET iOS, tvOS, and Catalyst apps.

How To Use

• Check the sample directory for a sample app.

var picker = new PickerViewWrapper(
            "Sample Picker", 
            new[] { "Options 1", "Options 2" },
            "Options 2",
            CustomPickerStyle.Menu,
            action =>
            {
                Console.WriteLine(action);
            });
this.View!.AddSubview(picker.UIView);

• PickerViewWrapper is an NSObject that contains the SwiftUI view. Once initialized, you can access the UIView by requesting its property.

From that point on, it's a standard UIView and can be treated as such.

FAQ

Q: Why does this exist?

In the Desktop Idiom, Mac Catalyst does not support UIPickerView. Your app will throw an exception if you try to use it. Normally, in an ObjC/Swift app, you could bring in SwiftUI and use its Picker as a replacement. SwiftUI isn't bound for .NET, and there's no direct interop process for accessing Swift inside of .NET apps, so there's no direct way to call for a SwiftUI Picker. This library gives a hacky way to make that happen.

Q: Why does this not support macOS AppKit?

I believe it could, by replacing the UIHostingController wrapper with an AppKit version, but since AppKit already has the pickers I need, I didn't bother. But if you want that, you should be able to do it if you add the support within the library framework itself, fix its breaking changes, and rebind it.