TextField accept limited characters SwiftUi

Question

I am having one textfield and I am using it to enter email and when a user clicks the send button, the email is deleted from the same textfield and its placeholder changes to enter pin. So when the user enters pin, I would like to make the text field to be limited up to 6 characters. Is this possible? If yes, please help me I am new to SwiftUI.

TextField(placeholder, text: $text)

The $text changes according to the states email or pin

maybe this will work for you -> https://stackoverflow.com/a/58364685/7512091 — emrcftci, Apr 15 '20 at 10:26

Rohit Makwana · Answer 1 · 2020-04-15T11:32:20.637

3

You can do it using Publisher and onReceive.

import SwiftUI

struct ContentView: View {
    @State var text:String = ""
    var body: some View {
        VStack{
            TextField("Enter text", text: $text)
                .onReceive(text.publisher.last()) { (output) in
                    if self.text.count>6{ //set count as you want
                        self.text = String(self.text.dropLast())
                    }
            }
        }
    }
}

edited Apr 15 '20 at 11:32

answered Apr 15 '20 at 11:02

Rohit Makwana

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Im getting the problem of undeclared publisher – user12723399 Apr 15 '20 at 11:16
Dont you declare some kind of publisher? – user12723399 Apr 15 '20 at 11:29
1

I'm not declared any variable, whole code i paste in ans. – Rohit Makwana Apr 15 '20 at 11:33
When the user enters more characters they are being displayed shortly and then deleted is there a way how this can be prevented? – user12723399 Apr 15 '20 at 13:31

TextField accept limited characters SwiftUi

1 Answers1