iCarousel numberOfItemsInCarousel

Question

我在CollectionView中使用了CollectionView模块。旋转木马视图在我的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
}

}

错误消息如下所示

由于“NSInvalidArgumentException”异常终止应用程序，原因：'-NSObject numberOfItemsInCarousel:：未识别的选择器发送到实例0x7f99bb3734a0‘

我已经设置了numberOfItemsInCarousel，为什么错误消息会显示这一点。有人帮我吗？谢谢。

Answer 1

看，您需要在单元格中添加一个dealloc方法。当您的单元正在被解除分配，而iCarousel委托将该方法调用到某个已分配的实例时，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
 }