仅允许在 datePicker (SwiftUI) 上选择单个日期

Question

I am making a project with a date picker form that I only want users to be able to select from a certain group of dates that is stored as an array (with no particular pattern). How could I disable (or enable) only certain dates on the datePicker. (possibly with a visual cue to show that certain dates are disabled) Thanks in advance.

Answer 1

Try:

struct ContentView: View {

    var dates = ["Date 1", "Date 2", "Date 3", "Date 4"]
        var grayedDates = ["Date 2", "Date 4"]
    
        var body: some View {
            VStack {
                Picker("Please choose a color", selection: $selectedColor) {
                    ForEach(dates, id: \.self) {
                        
                        if grayedDates.contains($0) == true {
                            Text("Unavailable: " + $0)
                        } else {
                            Text($0)
                        }
                       
                        /*
                        //but to gray out elements, this could have been a solution, if someone knows why it won't work...update:
                        Text($0)
                            .foregroundColor(grayedDates.contains($0) == true ? .gray : .black)
                         */
                    }
                }
            }
        }
}