textfield text change swift code example

Example 1: textchange in textview swift

class ViewController: UIViewController, UITextViewDelegate { //If your class is not conforms to the UITextViewDelegate protocol you will not be able to set it as delegate to UITextView

    @IBOutlet weak var bodyText: UITextView!

    override func viewDidLoad() {
        super.viewDidLoad()
        bodyText.delegate = self //Without setting the delegate you won't be able to track UITextView events
    }

    func textViewDidChange(_ textView: UITextView) { //Handle the text changes here
        print(textView.text); //the textView parameter is the textView where text was changed
    }
}

Example 2: how to know when text changed textfield swiftui

import Combine
import SwiftUI

struct ContentView: View {
    @State var location: String = ""

    var body: some View {
        TextField("Search Location", text: $location)
            .onReceive(Just(location)) { location in
                // print(location)
            }
    }
}