I have a method where if two UIImageViews intersect then it calls a bit of code.
But i also want it to stop this other -(void) method. The other void method is already running, so what syntax would I use for that?
If not, then what you're asking doesn't make sense, since once gateKeeperUp has started running then nothing else will run until gateKeeperUp is finished.
All methods instantly kill themselves (by returning) before you can do anything else, unless stuck in a loop, sleeping, or blocked on a synchronous call (or maybe a semaphore if running in the background). Which, if any, applies to your code?