dismiss keyboard with the send swift code example

Example 1: swift dismiss keyboard on return

extension UIViewController: UITextFieldDelegate{
    public func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        textField.resignFirstResponder()
        return true;
    }
}

override func viewDidLoad() {
    super.viewDidLoad()
    textField.delegate = self
}

Example 2: how to dismiss keyboard swiftui

struct ContentView: View {
    @State private var tipAmount = ""

    var body: some View {
        VStack {
            TextField("Name: ", text: $tipAmount)
                .textFieldStyle(RoundedBorderTextFieldStyle())
                .keyboardType(.decimalPad)

            Button("Submit") {
                print("Tip: \(self.tipAmount)")
                self.hideKeyboard()
            }
        }
    }
}