CODEWITHSUNDEEP
swiftios8nsinvocationoperation
Bagusflyer
Bagusflyer

Reputation: 12925

'NSInvocationOperation' is unavailable in Xcode 6.1

My code suddenly can't be compiled in Xcode 6.1 (I'm sure it's working in Xcode 6 GM and beta version). It shows the error message:

'NSInvocationOperation' is unavailable

My code is:

let operation = NSInvocationOperation(target:self, selector:"backgroundRun:", object:self)

Can anybody help? Thanks.

Upvotes: 6

Views: 3597

Answers (1)

rintaro
rintaro

Reputation: 51911

As of Xcode 6.1, NSInvocation is disabled in Swift, therefore, NSInvocationOperation is disabled too. See this thread in Developer Forum

Because it's not type-safe or ARC-safe. Even in Objective-C it's very very easy to shoot yourself in the foot trying to use it, especially under ARC. Use closures/blocks instead.

You have to use NSBlockOperation in Swift.

or addOperationWithBlock to NSOperationQueue

queue.addOperationWithBlock { [weak self] in
    self?.backgroundRun(self)
    return
}

Upvotes: 20

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