AVFoundation 和 UITableView

Posted 2023-03-12

【中文标题】AVFoundation 和 UITableView

【英文标题】：AVFoundation and UITableView

【发布时间】：2017-06-11 07:20:29

【问题描述】：

遇到了问题。我想制作一个由两个表组成的应用程序。第一个表中有一个标签和一个视图，第二个表中有一个按钮和一个视图。我想在两个表的所有标签中播放来自 Internet 的相同视频文件。但是出了点问题……我的错误在哪里？也许有人可以帮助我。

我给了表格不同的标签。并为每个表格定制单元格。

@IBOutlet weak var firstTable: UITableView!
@IBOutlet weak var secondTable: UITableView!
let firstCell = "firstCell"
let secondCell = "secondCell"
let avPlayer = AVPlayer()
var avPlayerLayer: AVPlayerLayer!

override func viewDidLoad() 
    super.viewDidLoad()
    firstTable.delegate = self
    firstTable.dataSource = self
    
    secondTable.delegate = self
    secondTable.dataSource = self
    
    avPlayerLayer = AVPlayerLayer(player: avPlayer)
    view.layer.insertSublayer(avPlayerLayer, at: 0)
    
    let url = NSURL(string: "http://jplayer.org/video/m4v/Big_Buck_Bunny_Trailer.m4v")
    let playerItem = AVPlayerItem(url: url! as URL)
    avPlayer.replaceCurrentItem(with: playerItem)
    NotificationCenter.default.addObserver(self, selector: #selector(ViewController.viewWillAppear(_:)), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: avPlayer.currentItem)


override func viewWillAppear(_ animated: Bool) 
    super.viewWillAppear(animated)
    let seconds : Int64 = 0
    let preferredTimeScale : Int32 = 1
    let seekTime : CMTime = CMTimeMake(seconds, preferredTimeScale)
    avPlayer.seek(to: seekTime)
    avPlayer.isMuted = true
    avPlayer.play()


func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int 
    if (tableView.tag == 1) 
        return 30
     else if (tableView.tag == 2) 
        return 20
     else 
        return 0
    


func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell 
    
    if (tableView.tag == 1) 
        
        let cell = tableView.dequeueReusableCell(withIdentifier: firstCell, for: indexPath) as! FirstTableViewCell
        cell.numCell.text = String(indexPath.row)
        viewVideo(viewer: cell.videoCell)
        return cell
     else 
        let cell = tableView.dequeueReusableCell(withIdentifier: secondCell, for: indexPath) as! SecondTableViewCell
        cell.buttonCell.setTitle(String(indexPath.row), for: .normal)
        cell.buttonCell.tag = indexPath.row
        cell.buttonCell.addTarget(self, action: #selector(showAlertForRow(sender :)), for: .touchUpInside)
        viewVideo(viewer: cell.videoSecondCell)
        return cell
    
    


func viewVideo(viewer: UIView) 
    super.viewWillLayoutSubviews()
    viewer.layer.addSublayer(avPlayerLayer)
    avPlayerLayer.frame.size = CGSize(width: viewer.frame.width, height: viewer.frame.height)


@IBAction func showAlertForRow(sender: UIButton) 
    let alert = UIAlertController(title:"Test work",message:"Cell at row \(sender.tag) was tapped!",preferredStyle: .alert)
    alert.addAction(UIAlertAction(title: "Okay", style: UIAlertActionStyle.default, handler: nil))
    self.present(alert, animated: true, completion: nil)

这是我的问题的 gif 吗？

【参考方案1】：

我风回答。 AvPlayerLayer 应该在单元格内。但像我一样，所有牢房只有一名球员。