问题描述
过去 2 周我一直在为 2 个问题苦苦挣扎，但还没有找到解决方案，正在开发一个音频播放器，我想在单击 UItableview 单元格或单击里面的按钮播放时播放音频文件按钮 因此，我创建了一个包含音频详细信息的结构，稍后我计划从 mp3 文件中提取该结构，例如歌曲名称、艺术家持续时间等。但现在我对这些详细信息进行了硬编码，以便我的主要重点是在单元格点击或按钮上播放歌曲
struct Audio {
let id: Int
let trackName: String
let trackTitle: String
let creationDate = Date()
let album: String
let uploadedBy: String
let genre: String
let lyricslang: String
let artist: String
let duration: Float
var completed = false
}
问题
-
如果用户只点击另一个单元格，我想隐藏播放按钮 播放当前歌曲将显示按钮（用于播放或停止）但问题 是按钮显示在单元格的每一行上，如果我点击，我也不想隐藏按钮 再次播放歌曲单元。
-
如果用户点击单元格，根据单元格编号，它将始终播放同一首歌曲，我想 根据单元格编号播放 0.mp3、1.mp3、2.mp3、3.mp3 等歌曲，然后停止 如果我在播放下一首歌曲之前尝试停止播放或尝试停止播放，则按钮不起作用 离开牢房 下面是我的全部代码
class AudioListViewController: UIViewController { var selectedRowIndex = -1 var songList: [Audio] = [ Audio(id: 0,trackName: "Song 1",trackTitle: "ABbcd:",album: "Loreim loreim",uploadedBy: "A men",genre: "Romantic",lyricslang: "English",artist: "God",duration: 2.00),Audio(id: 1,trackName: "Song 2",Audio(id: 2,trackName: "Song 3",duration: 2.00) ] @IBOutlet weak var songListTableView: UITableView! var isTapped: Bool = false @IBOutlet weak var close: UIButton! override func viewDidLoad() { super.viewDidLoad() songListTableView.dataSource = self songListTableView.delegate = self title = "Back" navigationItem.backButtonTitle = "Back be?" songListTableView.register(UINib(nibName: "SongsListTableViewCell",bundle: nil),forCellReuseIdentifier: "SongListCell") } @IBAction func closeSe(_ sender: Any) { self.dismiss(animated: true,completion: nil) } } extension AudioListViewController: UITableViewDataSource { func tableView(_ tableView: UITableView,numberOfRowsInSection section: Int) -> Int { return songList.count } func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCell(withIdentifier: "SongListCell",for: indexPath) as! SongsListTableViewCell cell.songTitle?.text = songList[indexPath.row].trackName cell.songDuration?.text = String(songList[indexPath.row].duration) return cell } } extension AudioListViewController: UITableViewDelegate{ func tableView(_ tableView: UITableView,didSelectRowAt indexPath: IndexPath) { tableView.deselectRow(at: indexPath,animated: true) let position = indexPath.row print(indexPath.row) let vc = tableView.dequeueReusableCell(withIdentifier: "SongListCell",for: indexPath) as! SongsListTableViewCell vc.songs = songList vc.position = position let selectedFilterRow = songList[indexPath.section].id if selectedFilterRow == indexPath.row { return } if let prevIoUsCell = tableView.cellForRow(at: IndexPath(row: selectedFilterRow,section: indexPath.section)) { vc.useSong.isHidden = true vc.useSong.alpha = 0 vc.stopSong() } if let cell = tableView.cellForRow(at: indexPath) { vc.useSong.isHidden = true vc.useSong.alpha = 0 vc.stopSong() vc.configure(position: position) } } }
class SongsListTableViewCell: UITableViewCell {
public var songs: [Audio] = [
Audio(id: 0,artist:
"God",duration: 2.00) ]
public var position: Int = 0
public var isPlaying: Bool = false
var cellsstate: Bool = false
var songPlayer: AVAudioPlayer?
@IBOutlet weak var singleViewCell: UIStackView!
@IBOutlet weak var songCellView: UIView!
@IBOutlet weak var songImage: UIImageView!
@IBOutlet weak var songTitle: UILabel!
@IBOutlet weak var songDuration: UILabel!
@IBOutlet weak var makeFavorite: UIButton!
@IBOutlet weak var useSong: UIButton!
let songReoad: AudioListViewController! = nil
override func awakeFromNib() {
super.awakeFromNib()
useSong.addTarget(self,action:
#selector(SongsListTableViewCell.selectSong(_:)),for: .touchUpInside)
makeFavorite.addTarget(self,action:
#selector(SongsListTableViewCell.makeFavourite(_:)),for: .touchUpInside )
useSong.isHidden = true
}
private let albumNameLabel: UILabel = {
let label = UILabel()
label.textAlignment = .center
label.numberOfLines = 0 // line wrap
return label
}()
private let artistNameLabel: UILabel = {
let label = UILabel()
label.textAlignment = .center
label.numberOfLines = 0 // line wrap
return label
}()
override func setSelected(_ selected: Bool,animated: Bool) {
super.setSelected(selected,animated: animated)
useSong.layer.cornerRadius = 6
configure(position: self.position)
}
func configure(position:Int) {
let song = songs[position]
let songId = String(song.id)
let urlString = Bundle.main.path(forResource: songId,ofType: "mp3")
do {
try AVAudioSession.sharedInstance().setMode(.default)
try AVAudioSession.sharedInstance().setActive(true,options:
.notifyOthersOnDeactivation)
guard let urlString = urlString else {
return
}
songPlayer = try AVAudioPlayer(contentsOf: URL(string: urlString)!)
guard let player = songPlayer else {
return
}
player.volume = 0.5
player.play()
isPlaying = true
}
catch {
print("error occurred")
}
songTitle.text = song.trackName
albumNameLabel.text = song.album
// Frame
let yPosition = artistNameLabel.frame.origin.y + 70 + 20
let size: CGFloat = 70
backButton.frame = CGRect(x: 20,y: yPosition,width: size,height: size)
// Add actions
makeFavorite.addTarget(self,action: #selector(didTapPlayPauseButton),for:
.touchUpInside)
}
func stopSong(){
if let player = songPlayer {
player.stop()
}else{
songPlayer?.stop()
}
}
@IBAction func selectSong(_ sender: UIButton) {
cellsstate = !cellsstate
songPlayer?.stop()
if (cellsstate) {
useSong.isHidden = false
useSong.alpha = 1
UIView.animate(withDuration: 0.6,animations: {
self.useSong.transform = CGAffineTransform(scaleX: 0.6,y: 0.6)
},completion: { _ in
UIView.animate(withDuration: 0.6) {
self.useSong.transform = CGAffineTransform.identity
}
})
} else {
useSong.isHidden = true
useSong.alpha = 0
}
}
@IBAction func makeFavourite(_ sender: UIButton) {
sender.isSelected = !sender.isSelected
if sender.isSelected {
makeFavorite.setimage(UIImage(systemName: "star.fill"),for: .normal)
} else {
makeFavorite.setimage(UIImage(systemName: "star"),for: .normal)
}
}
@objc func didTapPlayPauseButton() {
if songPlayer?.isPlaying == true {
// pause
songPlayer?.pause()
}
else {
// play
songPlayer?.play()
}
}
}
这就是它现在的样子 SongList view
这是我的 Songlistview songlistview
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。
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