I'm using XCode 15.0.1 (Swift 5.9) I tried other TextField formats (ParseableFormatStyle). I couldn't get them to work except USD currency. According to Apple's documentation, it is a "Beta Software". Why is it in the production version? For the .percent format, I think the TextField is expecting a binding variable with a Decimal type. However, I can't even declare a simple Decimal type variable. Here is an example private var pct2: Decimal = Decimal(1) XCode shows an "Argument passed to call that takes no arguments". That's strange. According to Apple's documentation, Decimal should have an Int initializer. If the TextField format property is a functional feature, perhaps the documentation should provide more information and examples. I ended up using the TextField formatter property with a NumberFormatter. for all number input, such as percent, currency, and number. I haven't type of Formatter yet. Just like @Hean20, I put the currency symbol and percentage sign outside the TextField.

I have a similar problem. The original looks something like this: #Preview { struct AllCurrencyFormatInputPreview: View { var body: some View { VStack { ... } Text(...) ... } } struct TopicsPreview: View { var body: some View { NavigationStack { List { NavigationLink("Currency", destination: AllCurrencyFormatInputPreview().navigationTitle("Currency")) } } } } return TopicsPreview() } The target view goes beyond the navigation bar. My work around is wrapping the content of AllCurrencyFormatInputPreview with a ScrollView. That solves my problem. struct AllCurrencyFormatInputPreview: View { var body: some View { ScrollView { VStack { ... } Text(...) ... } } }