IOS 播放音频流媒体

#pragma mark - 加载播放数据

- (void)loadData:(NSString *)musicUrl

{

    NSURL *playURL = [NSURL URLWithString:musicUrl];

    self.playerItem = [AVPlayerItem playerItemWithURL:playURL];

    //创建单利对象

    self.playStationDetailsManager = [StationDetailsManager defaultManager];

    [_playStationDetailsManager.avPlayer replaceCurrentItemWithPlayerItem:self.playerItem];

    [self.playerItem addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew context:nil];//监听status属性

    //添加音乐播放结束通知

    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(stopPlay) name:AVPlayerItemDidPlayToEndTimeNotification object:self.playerItem];

    //进入就播放

    [_playStationDetailsManager.avPlayer play];

}

#pragma mark 设置监听歌曲的方法，并进行页面赋值

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context

{

    AVPlayerItem *playerItem = (AVPlayerItem *)object;

    if ([keyPath isEqualToString:@"status"]) {

        //准备播放

        if ([playerItem status] == AVPlayerStatusReadyToPlay) {

            CMTime duration = self.playerItem.duration;//获取MP3的总长度

            self.playView.planSlider.maximumValue = CMTimeGetSeconds(duration);//设置滑竿的最大值

            NSLog(@"%f",CMTimeGetSeconds(duration));

            [self monitoringPlayback:self.playerItem];//监听播放的状态

        }else if ([playerItem status] == AVPlayerStatusFailed){

            //加载失败

            NSLog(@"加载失败");

        }

    }

}