swiftuixcode-previewsswiftui-previews

SwiftUI Preview Sheet w/o Running Live Preview?

Update Xcode 13 The code sample below works as expected in Xcode 13.

Update from Apple Frameworks Engineer October 2020:

Unfortunately there is no current workarounds to let you preview this outside of the live preview.

Is it possible to create a SwiftUI preview of a presented sheet without running the Live Preview? For example:

struct Sheet_Previews: PreviewProvider {
    static var previews: some View {
        Text("Background").sheet(isPresented: .constant(true)) {
            Text("Sheet")
        }
    }
}

The above results in the following preview:

enter image description here

In order for the sheet content to be presented in the preview, you must run the Live Preview:

enter image description here

Solution

  • Xcode 13.0 seems to handle this correctly without starting a Live Preview.

    So this is working now:

    struct Sheet_Previews: PreviewProvider {
    static var previews: some View {
        Text("Background").sheet(isPresented: .constant(true)) {
            Text("Sheet")
        }
    }
}