I think this works. Try on simulator. Preview gives unpredictable results.
import SwiftUI
struct Amount {
var value: Decimal
var currency: CurrencyCode
}
struct ContentView: View {
@State var amount = Amount(value: Decimal(), currency: .GBP)
var body: some View {
CurrencyAmount(title: "Some label", amount: $amount)
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView(amount: Amount(value: Decimal(), currency: .GBP))
}
}
struct CurrencyAmount: View {
let title: String
let prompt: String = ""
@Binding var amount: Amount
@State var currency: CurrencyCode = .GBP
var body: some View {
HStack {
Spacer(minLength: 80)
TextField(title, value: $amount.value, format: .currency(code: amount.currency.rawValue), prompt: Text(prompt))
CurrencyPicker(selected: $currency)
Spacer(minLength: 80)
}
.onChange(of: currency) { newValue in
amount.currency = newValue
}
}
}
struct CurrencyPicker: View {
@Binding var selected: CurrencyCode
let label = "Currency"
var body: some View {
Picker(label, selection: $selected) {
ForEach(CurrencyCode.allCases) {
Text($0.rawValue)
.tag($0)
}
}
}
}
enum CurrencyCode: String, CaseIterable, Identifiable {
var id: String { self.rawValue }
case AUD, CAD, EUR, GBP, NZD, USD
}
