How to Clear the Text Field Automatically
I Have a Question About Uitextfield() in Swift. How Can I Clear the Text in the Text Field When I Click on It? My textField. Text = "0". I Want to...
I have a question about UITextField() in Swift. How can I clear the text in the text field when I click on it?
My textField.text = "0". I want to automatically remove the number "0" when I click on the text field:
import UIKit
class ViewController: UIViewController, UITextFieldDelegate {
@IBOutlet var lbltext: UILabel!
@IBOutlet var scrolview1: UIScrollView!
@IBOutlet var fi: UITextField!
@IBOutlet var scrolviewus: UIScrollView!
@IBOutlet var counterLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
fi.text = "0"
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func button(sender: AnyObject) {
lbltext.numberOfLines = 0
lbltext.text! = lbltext.text! + "\n" + fi.text! + "\n" + "--- "
}
}
6 Answers
Use this method,
If you want to manually clear the text field use this code:
textField.text = ""
If you want the text field to empty when you begin editing, use the delegate method below:
func textFieldDidBeginEditing(textField: UITextField) {
textField.text = ""
}
If you are using multiple text fields, use the method below:
func textFieldDidBeginEditing(textField: UITextField) {
if (textField == oneTextField) {
textField.text = ""
}
else if (textField == anotherTextField) {
// Perform any other operation
}
}
You can easily clear the TextField in swift
emailTextField.text?.removeAll()
passwordTextField.text?.removeAll()
confirmPasswordTextField.text?.removeAll()
Simply use textFieldDidBeginEditing method to handle focus change, and clear text.
func textFieldDidBeginEditing(textField: UITextField) {
textField.text = ""
}
func textFieldDidBeginEditing(textField: UITextField)
{
if fi.text == "0"
{
fi.text = ""
}
}
There are a couple of ways you can solve this problem, depending on what you're looking for. The first is to use a placeholder instead of setting the text to 0. A placeholder will disappear whenever the user starts typing and reappear if they type nothing in:
fi.placeholder = "0"
if you want the 0 to be the value and not just a placeholder, there are lots of built in methods to track editing/entering/returning/etc of a textfield. This does require implementation of the UITextFieldDelegate however, which it appears you have already done.
var isFirstTime = true
override viewDidLoad() {
super.viewDidLoad()
fi.delegate = self
}
func textViewDidBeginEditing(textView: UITextView) {
isFirstTime = false
if fi.text == "0" {
fi.text = ""
}
}
func textViewDidEndEditing(textView: UITextView) {
if fi.text.isEmpty {
fi.text = "0"
isFirstTime = true
}
}
The is first time var is only present so that the user can type 0 if they choose. If the user should not be able to type 0, then it may be removed.
func textFieldDidBeginEditing(textField: UITextField) {
fi.text = ""
}
func textFieldDidEndEdition(textField: UITextField) {
if fi.text isEqualToString:@"" {
fi.text = @""
}
}
Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.
