如何使用AVAudioPlayer连续播放多个音频文件？ [英] How to play multiple audio files in a row with AVAudioPlayer?

问题描述

我的应用程序中有5首歌曲，我想用AVAudioPlayer一个接一个地播放。

I have 5 songs in my app that I would like to play one after the other with AVAudioPlayer.

这有什么例子吗？我怎样才能做到这一点？

Are there any examples of this? How can I accomplish this?

任何示例代码都将不胜感激！

Any example code would be greatly appreciated!

谢谢！

推荐答案

对于你想制作的每首歌，只需一个 AVPlayer 。

For every song you want to make make a single AVPlayer.

NSURL * url = [NSURL URLWithString：pathToYourFile];

AVPlayer * audioPlayer = [[AVPlayer alloc] initWithURL：url];


[audioPlayer play];

当玩家结束时，您可以获得通知。设置播放器时检查 AVPlayerItemDidPlayToEndTimeNotification ：

You can get a Notification when the player ends. Check AVPlayerItemDidPlayToEndTimeNotification when setting up the player:

  audioPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone; 

  [[NSNotificationCenter defaultCenter] addObserver:self
                                           selector:@selector(playerItemDidReachEnd:)
                                               name:AVPlayerItemDidPlayToEndTimeNotification
                                             object:[audioPlayer currentItem]];

这会阻止玩家在结束时暂停。

this will prevent the player to pause at the end.

：

- (void)playerItemDidReachEnd:(NSNotification *)notification
{
    // start your next song here
}

你可以开始你的下一首歌只要您收到当前播放歌曲完成的通知。维护一些在选择器调用中持久的计数器。这样使用计数器％[歌曲计数] 将为您提供无限循环播放列表：）

You can start your next song as soon as you get a notification that the current playing song is done. Maintain some counter which is persistent across selector calls. That way using counter % [songs count] will give you an infinite looping playlist :)

不要忘记释放播放器时取消注册通知。

Don't forget un unregister the notification when releasing the player.

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