Input errors - iOS

On iOS, we recommend using an UILabel to indicate an error. The error message should also be posted to assistive technologies by using an accessibility announcement.

You could also use a third party library to display instructions. Unfortunately, accessibility is often not considered in the implementations.

errorLabel.isHidden = false
errorLabel.text = "Invalid date, must be in the form DD/MM/YYYY, for example, 01/01/2000"