How to execute a function while a key is pressed in Swift?

Question

iOS

Task: there is a button, you need to perform a certain action, for example, print a message while it is pressed. That is, they clamped - the execution of the function began, released - the execution is interrupted. How to implement it? Thanks in advance)

Answer 1

It is done in an elementary way, 2 IBActions are created, one starts when the button is pressed, some process starts. The second when wrung out, the process stops.