ios - UICollectionCell 位置问题

Question

CollectionView 单元格未到达正确位置。我正在使用以下代码创建 Collection View

 let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
    layout.sectionInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)
    layout.scrollDirection = UICollectionViewScrollDirection.Horizontal
    viewListCollection = UICollectionView(frame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height), collectionViewLayout: layout)
    layout.headerReferenceSize = CGSizeZero
    layout.footerReferenceSize = CGSizeZero

    viewListCollection.dataSource = self
    viewListCollection.delegate = self
    viewListCollection.backgroundColor = UIColor.whiteColor()
    viewListCollection.tag = 9999
    viewListCollection.registerNib(UINib(nibName: "SelectedContactCell", bundle: nil), forCellWithReuseIdentifier: "SelectedContactCell")
    viewListCollection.scrollEnabled = true
    viewListCollection.collectionViewLayout = layout
    self.addSubview(viewListCollection)

蓝色是 CollectionView 的，黄色是 CollectionViewCell 的。您可以看到单元格的顶部距离，为什么会出现这个空间。以及如何删除它？

Answer 1

在您的 viewDidLoad 中试试这个:

self.automaticallyAdjustsScrollViewInsets = false