我正在尝试构建音乐应用程序。音乐播放完美,但是当音乐完成时它不会播放下一首歌曲。我正在寻找这个解决方案。当我尝试一些解决方案是给我错误。当音乐在iOS中完成音乐时播放下一首歌曲
应用萌发过程中由于未捕获的异常 'NSInvalidArgumentException', 原因:“ - [Shironamhin.MusicPlayer playerDidFinishPlaying:]:无法识别 选择发送到实例0x17003d960
我试图这样
class MusicPlayer: NSObject {
static let player = MusicPlayer()
//this is global variable
var player : AVPlayer?
var playerItem:AVPlayerItem?
func initPlayer(){
do {
try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
try AVAudioSession.sharedInstance().overrideOutputAudioPort(AVAudioSessionPortOverride.speaker)
print("AVAudioSession Category Playback OK")
do {
try AVAudioSession.sharedInstance().setActive(true)
print("AVAudioSession is Active")
} catch let error as NSError {
print(error.localizedDescription)
}
} catch let error as NSError {
print(error.localizedDescription)
}
}
func playMusic(_ musicUrl: String?) {
if let mm = musicUrl {
var url: URL!
url = URL(string: mm)
playerItem = AVPlayerItem(url: url)
player = AVPlayer(playerItem: playerItem)
player?.volume = 1.0
player?.rate = 1.0
player?.play()
NotificationCenter.default.addObserver(self, selector: Selector(("playerDidFinishPlaying:")), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: playerItem)
}
func playerDidFinishPlaying(note: NSNotification) {
print("call")
}
}
}
另外我该如何实现这个playerDidFinishPlaying?
你应该将'playMusic'的'外playerDidFinishPlaying'。 – the4kman
我搬了它。但仍然是相同的错误。你可以请分享鳕鱼? –