iCarousel in swift version 1.2 error (candidate is not Objc but protocol requires it)

Question

我在 swift 1.2 中收到以下错误：'RootViewController' 不符合协议 'iCarouselDataSource'

下面class，当我尝试实现第三方库iCarousel时：

class RootViewController: UIViewController,iCarouselDataSource,iCarouselDelegate
{...}

自动修复工具在此方法中放置一个符合协议的@objc 标记：

@objc func carousel(carousel: iCarousel!, viewForItemAtIndex index: Int, var reusingView view: UIView?) -> UIView?
{}

但随后出现另一个错误：Method cannot be marked @objc because the type of the parameter 3 cannot be represented in Objective-C

感谢任何帮助或线索，谢谢！

Answer 1

从 reusingView 中删除变量，例如：

func carousel(carousel: iCarousel!, viewForItemAtIndex index: Int, reusingView view: UIView!) -> UIView! {
    var newView = view
    if newView == nil {
        //create new view
    }
    //update data
    return newView
}

iCarousel in swift version 1.2 error (candidate is not Objc but protocol requires it)

iCarousel in swift version 1.2 error (candidate is not Objc but protocol requires it)

objective-c

icarousel

swift