目前，我的代码设置为每个表格视图单元格中的按钮，按下后会显示一个视频。每个表格视图单元格行包含按钮（有x个单元格数量）但是无论按钮被按入哪一行，它总是会导致相同的视频。有没有办法到哪里，根据按钮所在的行，它会显示一个视频？我的代码目前只有一个视频文件，但是如何根据按钮被点击的单元格进入哪里，它会显示一个特定的视频？例如，如果在第一行中点击按钮，我希望它显示某个视频，对于两个和三个，则相同，依此类推。现在他们都显示相同的视频。
以下是表格视图单元格的代码：
import UIKit
import AVFoundation
import AVKit
class VideoPlayerView: UIView {
let pauseButton: UIButton = {
let button = UIButton(type: .system)
button.setImage(#imageLiteral(resourceName: "Triangle 2"), for: .normal)
button.translatesAutoresizingMaskIntoConstraints = false
button.tintColor = UIColor.white
button.isHidden = false
button.addTarget(self, action: #selector(handlePause), for: .touchUpInside)
return button
}()
var player: AVPlayer?
var isPlaying = false
func handlePause() {
if isPlaying {
player?.pause()
pauseButton.alpha = 1.0 }
else { player?.play()
pauseButton.alpha = 0.01
}
isPlaying = !isPlaying
}
//container view that holds sublayers for the video control objects
let controlsContainerView: UIView = {
let view = UIView()
view.backgroundColor = UIColor(white: 0, alpha: 1.0)
return view
}()
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override init(frame: CGRect) {
super.init(frame: frame)
//setupPlayerView()
//configures container view (video's background)
controlsContainerView.frame = frame
addSubview(controlsContainerView)
backgroundColor = UIColor.black
//following adds pause/play button to video
controlsContainerView.addSubview(pauseButton)
pauseButton.centerXAnchor.constraint(equalTo: centerXAnchor).isActive = true
pauseButton.centerYAnchor.constraint(equalTo: centerYAnchor).isActive = true
}
//function that sets up video playback
private func setupPlayerView() {
//variable that contains video url
let fileUrl = URL(fileURLWithPath: "/Users/jordanlagrone/Desktop/BlackHeartBB/BlackHeartBB/dunk.mov")
player = AVPlayer(url: fileUrl)
//video only renders if you specify 'playerLayer'
let playerLayer = AVPlayerLayer(player: player)
self.layer.insertSublayer(playerLayer, at: 1)
playerLayer.frame = frame
player?.play()
//attached obeserver of 'player' to tell when 'player' is ready
player?.addObserver(self, forKeyPath: "currentItem.loadedTimeRanges", options: .new, context: nil)
}
//method called every time you add obserever to an object
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
//strring that lets AVPlayer know its ready
if keyPath == "currentItem.loadedTimeRanges" {
//configures container view while video is playing
controlsContainerView.backgroundColor = UIColor.clear
pauseButton.alpha = 0.05
isPlaying = true
}
}
}
class DrillsTableViewCell: UITableViewCell {
var videoURL:[URL] = [URL(fileURLWithPath: "/Users/jordanlagrone/Desktop/BlackHeartBB/BlackHeartBB/dunk.mov"), URL(fileURLWithPath: "/Users/jordanlagrone/Desktop/BlackHeartBB/BlackHeartBB/mk.MOV")]
var video = URL(fileURLWithPath: String())
@IBOutlet weak var logoImage: UIImageView!
@IBOutlet weak var drillTitle: UILabel!
@IBOutlet weak var playButton: UIButton!
@IBAction func watchButton(_ sender: Any) {
print(123)
//controls video background view
if let keyWindow = UIApplication.shared.keyWindow {
let view = UIView(frame: keyWindow.frame)
view.backgroundColor = UIColor.white
view.frame = CGRect(x: 0.0, y: 0.0, width: keyWindow.frame.width, height: keyWindow.frame.height)
let videoPlayerFrame = CGRect(x: 0, y: 0, width: keyWindow.frame.width, height: keyWindow.frame.width * 9 / 16)
let videoPlayerView = VideoPlayerView(frame: videoPlayerFrame)
view.addSubview(videoPlayerView)
keyWindow.addSubview(view)
UIView.animate(
withDuration: 0.5,
delay: 0,
options: .curveEaseOut,
animations: {
view.frame = keyWindow.frame
},
completion: { completedAnimation in
//possible features implemented later
UIApplication.shared.isStatusBarHidden = true
}
)
}
}
}
表格视图代码：
class DrillsViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var arrayForKey2 = [[String]]()
var keyIndex = Int()
var headLabel = String()
var labels = Array(trainingDict.keys)
@IBOutlet weak var tableView: DrillsTableView!
@IBOutlet weak var drillLabel: UILabel!
@IBOutlet weak var labelBackground: UIView!
@IBAction func back(_ sender: Any) {
performSegue(withIdentifier: "back", sender: self)
}
public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arrayForKey2.count
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell" , for: indexPath) as! DrillsTableViewCell
cell.playButton.tag = indexPath.row
//clear background color needed in order to display gradient cell
cell.backgroundColor = UIColor.clear
//gradient configuration
gradient = CAGradientLayer()
gradient.frame = tableView.bounds
gradient.colors = [UIColor.black.cgColor, UIColor.darkGray.cgColor, UIColor.black.cgColor]
tableView.layer.insertSublayer(gradient, at: 0)
gradient.startPoint = CGPoint(x: 0.0, y: 0.0)
gradient.endPoint = CGPoint(x: 1.0, y: 1.0)
//Possible method for 'drillLabel' gradient
drillLabel.font = UIFont(name: "Symbol", size: 24.0)
//attributes for watch/play button
cell.playButton.layer.shadowColor = UIColor.black.cgColor
cell.playButton.layer.shadowOffset = CGSize(width: 2, height: 2)
cell.playButton.layer.shadowOpacity = 0.7
cell.playButton.layer.shadowRadius = 1
//details for cell label display
cell.borderWidth = 1.5
cell.borderColor = UIColor.white
cell.drillTitle.text = "\(arrayForKey2[keyIndex][indexPath.row])"
cell.drillTitle.font = UIFont(name: "Symbol", size: 18.0)
cell.drillTitle.textColor = UIColor.white
return cell
}
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
drillLabel.text = labels[keyIndex]
}
}
答案 0 :(得分：2)
我相信你应该重构你的代码以获得所需的行为。请检查以下代码：
首先在名为VideoPlayerView的{{1}}方法中进行更改。使用此替换您的实现：
setupPlayerView现在在func setupPlayerView(for url: URL) {
player = AVPlayer(url: url)
//video only renders if you specify 'playerLayer'
let playerLayer = AVPlayerLayer(player: player)
self.layer.insertSublayer(playerLayer, at: 1)
playerLayer.frame = frame
player?.play()
//attached obeserver of 'player' to tell when 'player' is ready
player?.addObserver(self, forKeyPath: "currentItem.loadedTimeRanges", options: .new, context: nil)
}
进行更改，在videosURL中进行更改，然后我添加了一个新变量singleVideoURL，您的新类将如下所示：
DrillsTableViewCell答案 1 :(得分：1)
首先，您必须通过在tableView中为它们提供标记值来区分单元格中添加的按钮：cellForRowAtIndexPath：method
cell.button.tag = indexpath.row
这将为每个单元格中的按钮设置不同的标记值。 然后在下面添加：
cell.button.addTarget(self, action:(YourController.buttonMethodPlayVideo(:)) , forControlEvents: .TouchUpInside)
创建按钮的方法以对点击执行操作：
func buttonMethodPlayVideo(sender: UIButton) {
print(sender.tag)
}
在上面的方法中，当您点击按钮时，您将获得不同的标签值。 根据该值，您可以播放不同的视频或将不同的视频名称传递给播放器以播放vudeo。
答案 2 :(得分：0)
设置数组以放置视频＆＃39; path into，其indexe应匹配单元格的索引。此外，您可以将单元格的行号作为其标记传递给内部按钮。因此，当您点击该按钮时，您可以通过按钮的标签在阵列中找到特定的视频路径。