Xcode - UICollectionView inside UIViewController
我正在尝试在UIViewController中插入集合视图：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | import UIKit class imagesViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource { var labels = ["label1","label2","label3"] @IBOutlet weak var collectionView: UICollectionView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. self.collectionView.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier:"cell") collectionView.backgroundColor = UIColor.redColor() collectionView.delegate = self collectionView.dataSource = self } func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int { //#warning Incomplete method implementation -- Return the number of sections return 1 } func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { //#warning Incomplete method implementation -- Return the number of items in the section return labels.count } func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell { let cell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! UICollectionViewCell // Configure the cell var title = UILabel(frame: CGRectMake(0, 0, cell.bounds.size.width, cell.bounds.size.height)) cell.contentView.addSubview(title) title.text = labels[indexPath.row] title.textColor = UIColor.yellowColor() return cell } |
该应用程序正在运行，但集合视图似乎未正确链接到该类，我所做的所有配置均无效，它只是显示为空白。奇怪的是，我必须复制/粘贴集合视图的功能，因为自动完成仅显示某些collectionview方法。
如果您是使用StoryBoard创建单元的，那么我也遇到了同样的问题，并且可以通过删除
来解决它
1 | self.collectionView.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier:"cell") |
如果您在StoryBoard中定义了一个单元格，则该行似乎重复了工作并阻止了任何单元格的显示。