Add a prefix to TextField in SwiftUI

Question

I want a ‘+’ Sign in the Textfield which cannot be erased. A user should be able to enter values after it and if he presses backspace it should only erase the v

Answer 1

I required the same functionality in my app (user needs to put in country code so I can verify number) and I achieved something similar to what you want using a custom binding:

struct PrefixedTextField: View {
    @State private var countryCode = "+"

    var body: some View {
        let countryCodeCustomBinding =
            Binding(
                get: { self.countryCode },
                set: {
                    self.countryCode = $0
                    if self.countryCode.isEmpty { self.countryCode = "+" }
                })

        return TextField("+91", text: countryCodeCustomBinding).keyboardType(.numberPad)
    }
}