controltextShouldEndEditing
controltextShouldEndEditing is a term used in some user interface frameworks to describe a callback or delegate hook that decides whether editing of a text-based control should end. It is typically associated with text fields or text views where user input is collected.
When the user finishes editing or moves focus away, the framework may invoke this callback before the
In practice, implementations use this to perform validation, formatting, or constraint checks. For example, required-field validation
The exact naming controltextShouldEndEditing is not part of a widely adopted standard API in major platforms.
See also: textFieldShouldEndEditing, shouldEndEditing, resignFirstResponder.