Swift: show Date() in other language

Question

Is there a way to show date in a language other than English (especially the day in a week) in Swift?

I already have this DateFormatter to show the day in a week, but it only shows it in English:

var today = Date()

static let weekDayFormat: DateFormatter = {
        let formatter = DateFormatter()
        formatter.locale = Locale(identifier: "zh")
        formatter.dateFormat = "E"
        return formatter
    }()

If I write Text("\(today, formatter: Self.weekDayFormat)"), it will show "Sat".

However, I need it to show it in Chinese. Even if I tried set formatter.locale = Locale(identifier: "zh") and other identifier of Chinese, it always output an English result. I think it might just be that the English acronym of weekdays is commonly recognized, but my client wants it to show Chinese.

Answer 1

import SwiftUI

struct ContentView: View {
    var body: some View {
        Text(Formatter.weekDay.string(from: Date())).padding()
    }
}

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

extension Formatter {
    static let weekDay: DateFormatter = {
        let formatter = DateFormatter()

        // you can use a fixed language locale
        formatter.locale = Locale(identifier: "zh")
        // or use the current locale
        // formatter.locale = .current
        
        // and for standalone local day of week use ccc instead of E
        formatter.dateFormat = "ccc"
        return formatter
    }()
}