【发布时间】:2018-02-01 02:29:04
【问题描述】:
我想知道如何从“didSelectItemAt - 方法”中呈现一个新的视图控制器
请注意 UIViewController 不是子类,所以我无权访问 navigationController 来呈现视图控制器。
class FeedCell: UICollectionViewCell, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
let cellId = "cellId"
lazy var collectionView: UICollectionView = {
let layout = UICollectionViewFlowLayout()
let cv = UICollectionView(frame: .zero, collectionViewLayout: layout)
cv.backgroundColor = UIColor.white
cv.alwaysBounceVertical = true // Making the collection view scrollable vertically
cv.dataSource = self
cv.delegate = self
return cv
}()
override func setupViews(){
super.setupViews()
addSubview(collectionView)
addConstraintWithFormat(format: "H:|[v0]|", views: collectionView)
addConstraintWithFormat(format: "V:|[v0]|", views: collectionView)
collectionView.contentInset = UIEdgeInsetsMake(0, 0, 50, 0)
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 1
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
return collectionView.dequeueReusableCell(withReuseIdentifier: cellId, for: indexPath)
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
return 0
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
}
}
【问题讨论】:
标签: swift3 uinavigationcontroller viewcontroller