SwiftUI显示和关闭文本域键盘

import SwiftUI

struct ContentView: View {
    @State private var text: String = ""

    var body: some View {
        VStack {
            TextField("Enter text", text: $text)
                .textFieldStyle(RoundedBorderTextFieldStyle())
                .padding()
                .onTapGesture {
                    UIApplication.shared.sendAction(#selector(UIResponder.becomeFirstResponder), to: nil, from: nil, for: nil)
                }
            
            Button("Close Keyboard") {
                UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
            }
            .padding()
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}