我有一个collectionViewController,我想显示一些自定义UICollectionViewCell与他们上的一些标签.不幸的是,每当我尝试访问自定义UICollectionViewCell的标签,它会导致崩溃：
原文链接：https://www.f2er.com/swift/318938.html安慰
fatal error: Can’t unwrap Optional.None
窗口
Thread1: EXC_BAD_INSTRUCTION(code=EXC_1386_INVOP,subcode=0x0)
我正在尝试访问标签：
cell.name.text = names[indexPath!.item]
也许这是从我的出口标签是零？但是看看周围的答案没有任何工作,因为我不确定什么问题添加？/！在我的代码中并没有真正的帮助.
MyCustomUICollectionViewController
class ScrambledTextCollectionViewController: UICollectionViewController {
var names: String[] = ["Anna","Alex","Brian","Jack"]
override func viewDidLoad() {
super.viewDidLoad()
// Register cell classes
self.collectionView.registerClass(MyCustomCollectionViewCell.self,forCellWithReuseIdentifier: reuseIdentifier)
}
override func numberOfSectionsInCollectionView(collectionView: UICollectionView?) -> Int {
return 1
}
override func collectionView(collectionView: UICollectionView?,numberOfItemsInSection section: Int) -> Int {
return names.count
}
override func collectionView(collectionView: UICollectionView?,cellForItemAtIndexPath indexPath: NSIndexPath?) -> UICollectionViewCell? {
var cell = collectionView?.dequeueReusableCellWithReuseIdentifier("Cell",forIndexPath: indexPath) as MyCustomCollectionViewCell
cell.name.text = names[indexPath!.item]
return cell
}
}
MyCustomCollectionViewCell
class MyCustomCollectionViewCell: UICollectionViewCell {
@IBOutlet var name: UILabel
init(frame: CGRect) {
super.init(frame: frame)
}
}
