In this article we will learn how to set maximum character length to a UITextField and UITextView.
We go through each one separately.
Next add the following delegate method for setting up the maximum limit:
Above example is for, if user asked to enter his/her mobile number, assume maximum length as 10.
Download the sample project from the bottom of this article.
Next add the following delegate method for setting the maximum limit:
Above example is for, if user asked to enter about his/her, assume maximum limit here 50 characters.
Download sample project with example :
We go through each one separately.
UITextField:
First add UITextField to the view and conform to UITextFieldDelegate.Next add the following delegate method for setting up the maximum limit:
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool { let currentText = textField.text ?? "" guard let stringRange = Range(range, in: currentText) else { return false } let updatedText = currentText.replacingCharacters(in: stringRange, with: string) return updatedText.count <= 10 // Change limit based on your requirement. }
Above example is for, if user asked to enter his/her mobile number, assume maximum length as 10.
Download the sample project from the bottom of this article.
UITextView:
Add UITextView to the view and conform to UITextViewDelegate.Next add the following delegate method for setting the maximum limit:
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool { let currentText = textView.text ?? "" guard let stringRange = Range(range, in: currentText) else { return false } let updatedText = currentText.replacingCharacters(in: stringRange, with: text) return updatedText.count <= 50 // Change limit based on your requirement. }
Above example is for, if user asked to enter about his/her, assume maximum limit here 50 characters.
Download sample project with example :
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