FB8130464.md

FB8130464

I have found an erroneous invocation of onDisappear in a particular view hierarchy. If you have a NavigationView wrapping a Form, which has a NavigationLink that drills down to a Form, then the inner most Form will have its onDisappear invoked when the view appears.

Here is a code sample that reproduces it:

struct ContentView: View {
  var body: some View {
    NavigationView {
      Form {
        NavigationLink(
          "Tap",
          destination: Form {
            Section(header: Text("Section")) {
              Text("Label")
            }
          }
          .onDisappear {
            print("🛑 This should not be called")
          }
        )
      }
    }
  }
}

When you tap the root navigation link you will see that it causes the onDisappear to be invoked when it should not.