WildCat WildCat - 3 months ago 22
Swift Question

Is it necessary to use [unowned self] in closures of UIView.animateWithDuration(...)?

UIView.animateWithDuration(1,
animations: { [unowned self] in
self.box.center = self.boxTopRightPosition
},
completion: { [unowned self] completed in
self.box.hidden = true
})


Is it necessary to avoid memory leak?

Answer

No, it is not needed in this case. animations and completion are not retained by self so there is no risk of strong retain cycle.

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