【发布时间】:2019-02-16 18:57:31
【问题描述】:
对编码和以编程方式制作项目非常陌生。我的收藏视图已全部设置,但我不知道如何告诉特定单元格导航到新的收藏视图或详细信息视图。非常困惑和沮丧。任何人都可以帮助我或至少指出我正确的方向。请把它弄小点哈哈。
这是我的主视图控制器
import UIKit
class HomeController: UICollectionViewController,
UICollectionViewDelegateFlowLayout {
var Legends: [Legend] = {
var select1 = Legend()
select1.thumbnailImageName = "select1thumbnail"
var select2 = Legend()
select2.thumbnailImageName = "select2humbnail"
return[select1, select2]
}()
override func viewDidLoad() {
super.viewDidLoad()
navigationItem.title = "Choose Selection"
collectionView.backgroundView = UIImageView(image: UIImage(named: "backgroundlogo"))
collectionView?.register(VideoCell.self, forCellWithReuseIdentifier: "cellId")
collectionView.dataSource = self
collectionView.delegate = self
}
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return Legends.count
}
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cellId", for: indexPath) as! VideoCell
cell.legend = Legends[indexPath.item]
return cell
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width:view.frame.height, height: 150)
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
return 0
}
override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let select2VC = UIViewController()
navigationController?.navigationBar.tintColor = UIColor.white
navigationController?.pushViewController(select2VC, animated: true)
print("selcected")
}
}
这是我的收藏视图的 swift 文件
import UIKit
class VideoCell: UICollectionViewCell {
var legend: Legend? {
didSet {
thumbnailImageView.image = UIImage(named: (legend?.thumbnailImageName)!)
}
}
override init(frame: CGRect) {
super.init(frame: frame)
setupViews()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
let thumbnailImageView: UIImageView = {
let imageView = UIImageView()
imageView.backgroundColor = UIColor.darkGray
imageView.image = UIImage(named:"bgcolor")
imageView.contentMode = .scaleAspectFit
imageView.clipsToBounds = true
imageView.translatesAutoresizingMaskIntoConstraints = false
return imageView
}()
func setupViews() {
addSubview(thumbnailImageView)
addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-16-[v0]-16-|", options: NSLayoutConstraint.FormatOptions(), metrics: nil, views: ["v0": thumbnailImageView]))
addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-1-[v0]-0-|", options: NSLayoutConstraint.FormatOptions(), metrics: nil, views: ["v0": thumbnailImageView]))
}
}
在第三个文件中我只有这段代码
import UIKit
class Legend: NSObject {
var thumbnailImageName: String?
}
主视图控制器的底部代码确实打印出“选定”,但它为每个单元格打印它...我假设每个单元格都需要自己的 viewController.swift 文件?然后告诉那个单元格到那个快速文件来显示内容??谢谢你的时间。
【问题讨论】:
标签: ios swift cell collectionview