I am trying to fix my finale error whilst trying to convert to Swift 3, however I am unsure why I am getting the error
Cannot convert value of type '() -> Void' to expected argument type '(() -> Void)?'
For
CATransaction.setCompletionBlock(completion)
Complete Function
fileprivate func deleteRowsAtIndexPaths(_ indexPaths: [IndexPath], withRowAnimation animation: UITableViewRowAnimation, duration: TimeInterval, completion:() -> Void) {
CATransaction.begin()
CATransaction.setCompletionBlock(completion) //Error
UIView.animate(withDuration: duration) { () -> Void in
self.deleteRows(at: indexPaths, with: animation)
}
CATransaction.commit()
}
Does anybody know why I am getting this and how I can resolve the error ?
Please check the latest reference when you find something odd in migrating your code to Swift 3.
Declaration
class func setCompletionBlock(_ block: (@escaping () -> Void)?)
Try changing this part of your method header completion:() -> Void
to this:
completion: @escaping () -> Void
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