Hi everyone!

I’m currently working on the first project.

When the device keyboard is set to some languages (including mine, French (Switzerland)), the keyboard has a comma (“,”) instead of a dot (“.”). When I read the content of the TextField, the checkAmount string contains a comma instead of a dot.

The issue is that on the other hand, the Double initializer doesn’t recognize this separator. For instance, Double("12,34") fails while Double("12.34") does not.

Would there be a way to force the keyboard to use the English format with a dot?

I was thinking about manually replacing commas by dots before calling the Double initializer, but I’m afraid that it could still be broken in other languages I’m now aware of.

Here’s a screenshot showing the issue on the simulator:

Hi Nicolas,

You can do so by using the default String operator .replacingOccurrences(of: String, with: String).

By doing so, you will be able to type "," as well as "." in your textfiel, without any trouble.

Here is a complete SwiftUI example to do so. Hope this will help you.

Regards Patrick

struct InputView: View {

    @State private var textInput = ""

    func converter(text: String) -> String {
        let textDouble = Double(textInput.replacingOccurrences(of: ",", with: ".")) ?? 0
        // If the Textfield is empty, 0 will be returned
        return String(format: "%.2f", textDouble)
    }

    var body: some View {
        Form {
            Section(header: Text("Input")) {
                TextField("Type in a Bool", text: $textInput)
            }
            .keyboardType(.decimalPad)

            Section(header: Text("Output")) {
                Text("$\(converter(text: textInput))")
            }
        }
    }
}

struct InputView_Previews: PreviewProvider {
    static var previews: some View {
        InputView()
    }
}

Hi guys,

Since i'm in Switzerland too, I went through the same issue :)

Thanks @patchlock for the tip !

The answer is here if others come across :

1. The function must be added before the body

    func converter(text: String) -> String {
        let conversion = Double(**checkAmount**.replacingOccurrences(of: ",", with: ".")) ?? 0
        return String(format: "%.2f", conversion)
    }

2. The function must be called like this :

    var totalPerPerson: Double {
        let peopleCount = Double(numberOfPeople + 2)
        let TipSelection = Double(tipPercentages[tipPercentage])
        let orderAmount = Double(converter(text: checkAmount)) ?? 0

        let tipAmount = orderAmount / 100 * TipSelection
        let grandTotal = orderAmount + tipAmount
        let amountPerPerson = grandTotal / peopleCount

        return amountPerPerson
    }

:)