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Inconsistent keyboard dismissal behavior in iOS 16 when using SwiftUI with UIKit components

👀 Views: 69 💬 Answers: 1 📅 Created: 2025-06-08
swift ios swiftui uikit keyboard-dismissal Swift

I'm building a feature where I'm facing an issue with keyboard dismissal in my iOS 16 app that uses a combination of SwiftUI and UIKit components. Specifically, I have a form that consists of a `UITextField` embedded within a `UIViewControllerRepresentable`. While the keyboard dismisses correctly when tapping outside the text field in SwiftUI views, it does not dismiss when tapping a button that’s part of the UIKit component. Here’s a simplified version of my implementation: ```swift struct MyFormView: View { @State private var textInput: String = "" var body: some View { VStack { TextField("Enter text", text: $textInput) .textFieldStyle(RoundedBorderTextFieldStyle()) .padding() Button(action: { // Attempt to dismiss keyboard UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil) }) { Text("Submit") } } } } ``` In my `UIViewControllerRepresentable`, I am using a `UITextField` like this: ```swift struct TextFieldWrapper: UIViewControllerRepresentable { class Coordinator: NSObject, UITextFieldDelegate { var parent: TextFieldWrapper init(parent: TextFieldWrapper) { self.parent = parent } func textFieldShouldReturn(_ textField: UITextField) -> Bool { textField.resignFirstResponder() return true } } func makeCoordinator() -> Coordinator { Coordinator(parent: self) } func makeUIViewController(context: Context) -> UIViewController { let viewController = UIViewController() let textField = UITextField() textField.delegate = context.coordinator textField.borderStyle = .roundedRect viewController.view.addSubview(textField) // Layout code for textField return viewController } func updateUIViewController(_ uiViewController: UIViewController, context: Context) { // Update code if needed } } ``` When I tap the Submit button, I would expect the keyboard to dismiss, but it doesn’t seem to work as expected when the UITextField is focused. I've tried adding the line to manually resign the first responder in the button action, but it seems ineffective. I've also ensured that the TextField wrapper has its delegate correctly set. Do you have any insights on why the keyboard won’t dismiss when tapping the button in this hybrid SwiftUI/UIKit setup? Is there a better approach to handle keyboard dismissal? Any assistance would be appreciated! I'd be grateful for any help. I'm working on a REST API that needs to handle this.