How to track the completion of SKAction.moveToPoint?

Question

Apple Xcode

Hey!
I launch SKAction for execution in which the sprite moves to a given position. How to know that the action has completed and the sprite has reached the end point?

Answer 1

I will answer myself, maybe it will be useful to someone else.
https://developer.apple.com/library/ios/documentat...
And KVO on it.