Sn1*_*kkN 5 iphone scroll ios uicollectionview swift
UICollectionView我有一个不想水平滚动的问题。我想显示 5 个可以滚动的单元格。是什么阻止我collectionview滚动?
import UIKit
class FeaturedCell: UICollectionViewCell, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout
{
// Attributes
lazy var featuredVideos = UICollectionView(frame: .zero)
// Superclass initializer
required init?(coder aDecoder: NSCoder)
{
fatalError("init(coder:) has not been implemented")
}
// Custom initializer
required override init(frame: CGRect)
{
super.init(frame: frame)
let layout = UICollectionViewFlowLayout()
layout.scrollDirection = .Horizontal
featuredVideos = UICollectionView(frame: self.frame, collectionViewLayout: layout)
featuredVideos.dataSource = self
featuredVideos.delegate = self
// Setting the collection view's scrolling behaviour
featuredVideos.pagingEnabled = true
featuredVideos.scrollEnabled = true
featuredVideos.setContentOffset(CGPoint(x: 0,y: 0), animated: true)
featuredVideos.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier: "cellId")
addSubview(featuredVideos)
setConstraints("H:|[v0(\(frame.width))]|", subviews: featuredVideos)
setConstraints("V:|[v0(345)]", subviews: featuredVideos)
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 5
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell
{
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("cellId", forIndexPath: indexPath)
if indexPath.item == 1 { cell.backgroundColor = .lightGrayColor() } else { cell.backgroundColor = .brownColor() }
return cell
}
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize
{
return CGSizeMake(frame.width/3, frame.height)
}
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAtIndex section: Int) -> CGFloat
{
return 10
}
}
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编辑: UICollectionView 实际上不会对任何交互做出反应,我尝试了“didSelectAtIndexPath”,但没有触发。
我已经找到问题了。
在父视图中,我在 cellForItemAtIndexPath() 内为此视图(父视图中的 UICollectionViewCell)添加了一个边框,这导致视图仅加载第一个单元格并拒绝任何交互。
我通过在“子视图”内的 init() 中添加边框来修复它,效果很好。
感谢大家的帮助 :)