UIKeyboardType

ContentView.swift

import SwiftUI

struct ContentView: View {
    @State var inputText = ""
    @State var selected: String?
    @State var selectedKeyboardType = UIKeyboardType.default
    
    @FocusState var focused
    
    let types: [String: UIKeyboardType] = [
        "default":                  UIKeyboardType.default,
        "asciiCapable":             UIKeyboardType.asciiCapable,
        "numbersAndPunctuation":    UIKeyboardType.numbersAndPunctuation,
        "URL":                      UIKeyboardType.URL,
        "numberPad":                UIKeyboardType.numberPad,
        "phonePad":                 UIKeyboardType.phonePad,
        "namePhonePad":             UIKeyboardType.namePhonePad,
        "emailAddress":             UIKeyboardType.emailAddress,
        "decimalPad":               UIKeyboardType.decimalPad,
        "twitter":                  UIKeyboardType.twitter,
        "webSearch":                UIKeyboardType.webSearch,
        "asciiCapableNumberPad":    UIKeyboardType.asciiCapableNumberPad,
        "alphabet":                 UIKeyboardType.alphabet
    ]
    
    @State var keys: [String] = []

    var body: some View {
        VStack {
            TextField("test", text: $inputText)
                .keyboardType(selectedKeyboardType)
                .focused($focused)
            List(selection: $selected) {
                ForEach(keys, id: \.self) {t in
                    Text("\(types[t]!.rawValue): \(t)")
                        .tag(t)
                }
            }
        }
        .padding()
        .onAppear() {
            keys = types.keys.sorted {
                types[$0]!.rawValue < types[$1]!.rawValue
            }
        }
        .onChange(of: selected) { oldValue, newValue in
            if let newValue {
                selectedKeyboardType = types[newValue]!
            } else {
                selectedKeyboardType = .default
            }
            focused = false
            Task {
                try! await Task.sleep(nanoseconds: 300000)
                focused = true
            }
        }
    }
    
}

#Preview {
    ContentView()
}