SecureFieldの実装

ContentView.swift

import SwiftUI

struct ContentView: View {
    
    @State private var password = ""
    @State private var inputText = ""
    
    var body: some View {
        VStack {
            SecureField("パスワードを入力してください。", text: $inputText, onCommit: {
                self.password = self.inputText
            })
            .textFieldStyle(RoundedBorderTextFieldStyle())
            .keyboardType(.alphabet)
            .padding()
            
            Text(password)
        }
    }
}

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