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Day 19 Challenge, TextField formatting options

Forums > 100 Days of SwiftUI

Hello,

Is there a simple way to format TextField to be empty instead of showing my inputValue while I first launch the app? Currently, I have to delete 0 and than type newValue for conversion. (Or, may be there is a way to delete my default 0 with typing?)

I tried NumberFormatter() option, but it didn't work with my code.

Thank you

2      

I think the easiest way to make custom formatter like this

let numberFormatter: NumberFormatter = {
        let formatter = NumberFormatter()
        formatter.numberStyle = .none
        formatter.zeroSymbol  = ""
        return formatter
    }()

And then use it as usual formatter

TextField("Enter number", value: $number, formatter: numberFormatter)

3      

Thank you!

2      

You can also make the number optional but you then have to unwrap it!

struct ContentView: View {
    @State private var number: Int?

    var displayNumber: Int {
        number ?? 0
    }

    var body: some View {
        VStack {
            Text(displayNumber, format: .number)
                .padding()
            TextField("Enter Number", value: $number, format: .number)
        }
        .padding()
    }
}

2      

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