Cancel a timed event in Swift?

Question

I want to run a block of code in 10 seconds from an event, but I want to be able to cancel it so that if something happens before those 10 seconds, the code won\'t run after

Answer 1

Update for Swift 3.0

Set Perform Selector

perform(#selector(foo), with: nil, afterDelay: 2)

foo method will call after 2 seconds

 func foo()
 {
         //do something
 }

To cancel pending method call

 NSObject.cancelPreviousPerformRequests(withTarget: self)