ios - iCarousel numberOfItemsInCarousel

Question

我在 CollectionView 中使用 iCarousel 模块。轮播 View 位于我的 UICollectionViewCell 中。

我的代码如下。

class CelebrityDetailHeaderCell: UICollectionViewCell, UITextFieldDelegate, SDCycleScrollViewDelegate, iCarouselDataSource, iCarouselDelegate {

@IBOutlet weak var backgroudLab: UILabel!
@IBOutlet weak var name_en: UILabel!
@IBOutlet weak var name_tw: UILabel!
@IBOutlet weak var intro: UILabel!
@IBOutlet weak var DetailImg: UIImageView!
@IBOutlet weak var iCarouselView: iCarousel!

let screenWidth = UIScreen.mainScreen().bounds.width
let screenHeight = UIScreen.mainScreen().bounds.height

override func awakeFromNib() {
    super.awakeFromNib()

    iCarouselView.delegate = self
    iCarouselView.dataSource = self

    iCarouselView.type = .Linear
}

func numberOfItemsInCarousel(carousel: iCarousel) -> Int {
    return 1
}
func carousel(carousel: iCarousel, viewForItemAtIndex index: Int, reusingView view: UIView?) -> UIView {
    let tempView = UIView(frame: CGRect(x: 0, y: screenWidth/2, width: screenWidth, height: screenWidth/2))
    tempView.backgroundColor = UIColor.redColor()
    return tempView
}
func carousel(carousel: iCarousel, valueForOption option: iCarouselOption, withDefault value: CGFloat) -> CGFloat {
    if option == iCarouselOption.Spacing {
        return 1.2
    }
    return value
}

}

错误信息如下

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSObject numberOfItemsInCarousel:]: unrecognized selector sent to instance 0x7f99bb3734a0'

我已经设置了 numberOfItemsInCarousel 为什么错误消息显示这个。有人帮助我吗？谢谢。

Answer 1

看来您需要在单元格中添加一个 dealloc 方法。当您的单元格被解除分配并且 iCarousel 委托(delegate)正在调用该方法到某个已解除分配的实例时，这就是它崩溃的原因

编写这样的dealloc方法

- (void)dealloc{
    iCarouselView.delegate = nil
    iCarouselView.dataSource = nil
 }