Are there any examples on how to call a Composable...

# compose-ios

[curioustechizen]

Are there any examples on how to call a Composable that accepts slots (i.e., Composable lambdas) from SwiftUI?

[curioustechizen]

I'm guessing it has something to do with the example shown here but I don't understand completely what's involved.

[curioustechizen]

Given a Composable like this

@Composable fun MyComposable(
    mainContent: @Composable () -> Unit,
    bottomStickyContent: @Composable () -> Unit
) {
    // My Implementation
}

[curioustechizen]

I think I need to wrap it (still in Kotlin land, in iosMain) like this:

// Wrapper for use from SwiftUI
fun MyComposableEntryPoint(
    createMainContent: () -> UIView,
    createBottomStickyContent: () -> UIView
): UIViewController {
    ComposeUIViewController {
        MyComposable(
            mainContent = {
                UIKitView(
                    factory = createMainContent()
                )
            },
            bottomStickyContent = {
                UIKitView(
                    factory = createBottomStickyContent()
                )
            }
        )
    }
}

[curioustechizen]

And finally use it from Swift like this:

// Usage from SwiftUI
Main_iosKt.MyComposableEntryPoint(
    createMainContent: { () -> UIView in
        // SwiftUI implementation of mainContent
    },
    createBottomStickyContent: { () -> UIView in
    // SwiftUI implementation of bottomStickyContent
    }
)

[curioustechizen]

Still figuring out if I need the UIViewControllerRepresentable step. All of this is just theory. Will have to try it out tomorrow.

[curioustechizen]

I tried a bunch of stuff with this and still could not get it to work as I wanted.

• My biggest issue is that using SwiftUIInUIView as shown here results in every "slot" taking up the entire screen.
• I tried to make some changes like not setting the autolayout constraints to take up the full space. This solves one problem but still another remains: My slots are not sized correctly.
So my question is: Is it at all possible for a Composable to impose sizing constraints on a SwiftUI view embedded inside it?