我正在创建一个舞蹈学习应用程序。我的第一个View Controller是一个包含单元格中图像的集合视图。点击单元格时，它将打开每个单元格的数据。之后，在第二个View Controller中选择单元格时，我将更新所有视图，并且我的标签也将更新。但是我的第二个视图控制器上还有一个视频按钮。问题是我想在选择单元格时更新所选视频按钮的视频。
我已经用Google搜索，但没有找到任何可以帮助我的东西。
这是我的第二个视图控制器。
import UIKit
import AVKit
let detailCollectionViewReuseIdentifier = "detailCollectionViewCell"
class DetailViewController: UIViewController {
@IBOutlet weak var detailCollectionView: UICollectionView!
@IBOutlet weak var navItem: UINavigationItem!
@IBOutlet weak var danceLearnName: UILabel!
@IBOutlet weak var courseButton: UIButton!
@IBOutlet weak var detailDanceDescription: UITextView!
@IBOutlet weak var mediaDanceName: UIButton!
var detailDance: Dance? {
didSet {
configureView()
}
}
func configureView() {
if let detailDance = detailDance {
if let navItem = navItem, let danceLearnName = danceLearnName, let courseButton = courseButton, let detailDanceDescription = detailDanceDescription, let mediaDanceName = mediaDanceName {
detailDanceDescription.text = detailDance.danceCourseDescription[0]
danceLearnName.text = detailDance.danceCourseName[0]
mediaDanceName.setTitle("Մեդիա", for: .normal)
courseButton.layer.masksToBounds = true
courseButton.layer.cornerRadius = 15
navItem.title = detailDance.danceName + " Ուսուցում"
}
}
}
override func viewDidLoad() {
super.viewDidLoad()
configureView()
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "showVideos" {
if let destination = segue.destination as? DanceMediaViewController {
destination.detailDance = detailDance
}
}
}
func playMedia(_ path: String) {
guard let videoPath = Bundle.main.path(forResource: path, ofType: "mov") else {
debugPrint("\(String(describing: path)) not found")
return
}
let player = AVPlayer(url: URL(fileURLWithPath: videoPath))
let playerController = AVPlayerViewController()
playerController.player = player
present(playerController, animated: true) {
player.play()
}
}
@IBAction func mediaStepClicked() {
let indexPath = (detailDance?.danceMediaBySteps[0])!
playMedia(indexPath)
}
}
extension DetailViewController: UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return (detailDance?.detailDanceImages.count)!
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: detailCollectionViewReuseIdentifier, for: indexPath) as! DetailCollectionViewCell
cell.detailDanceImages.image = UIImage(named: (detailDance?.detailDanceImages[indexPath.item])!)
cell.detailDanceImages.layer.cornerRadius = 8
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
collectionView.deselectItem(at: indexPath, animated: false)
collectionView.delaysContentTouches = false
detailDanceDescription.text = detailDance?.danceCourseDescription[indexPath.item]
danceLearnName.text = detailDance?.danceCourseName[indexPath.item]
}
func collectionView(_ collectionView: UICollectionView, didHighlightItemAt indexPath: IndexPath) {
let cell = collectionView.cellForItem(at: indexPath) as! DetailCollectionViewCell
cell.contentView.backgroundColor = #colorLiteral(red: 0.6000000238, green: 0.6000000238, blue: 0.6000000238, alpha: 1)
}
func collectionView(_ collectionView: UICollectionView, didUnhighlightItemAt indexPath: IndexPath) {
let cell = collectionView.cellForItem(at: indexPath) as! DetailCollectionViewCell
cell.contentView.backgroundColor = UIColor.clear
}
}
我想获得有关在didSelect在我的单元格上如何集成正确功能并更新点击按钮的视频的建议。