ios swift 锁屏开发

  func nowplaying(artist: String, song: String, artworkImage: String) {
    //获取锁屏中心
    let playCenter = MPNowPlayingInfoCenter.default()
    let infoDict = NSMutableDictionary()
    //设置歌曲名
    //        infoDict[MPMediaItemPropertyAlbumTitle] =  song
    infoDict[MPMediaItemPropertyTitle] = song
    //设置歌手名
    infoDict[MPMediaItemPropertyArtist] = artist
    // 专辑作者
    //        infoDict[MPMediaItemPropertyAlbumArtist] = "好嗨"
    //播放速率
    infoDict[MPNowPlayingInfoPropertyPlaybackRate] = self.rate
    //设置图片
    var showImage = UIImage(named: "play_play")!
    if let image = try? UIImage(url: URL(string: artworkImage) ?? URL(fileURLWithPath: "")) {
      showImage = image
    }

    let artWork = MPMediaItemArtwork(boundsSize: showImage.size) { size in
      return showImage
    }
    infoDict[MPMediaItemPropertyArtwork] = artWork
      let duration = self.player.currentItem?.duration
      let durationTime = TimeInterval(duration?.seconds ?? 0)
      //设置总时长
      infoDict[MPMediaItemPropertyPlaybackDuration] = durationTime
               
    playCenter.nowPlayingInfo = infoDict as? [String: Any]
    //开启远程控制
    UIApplication.shared.beginReceivingRemoteControlEvents()
    CCPlayViewController.shared.becomeFirstResponder()
  }