iPhone SDK:通过按钮播放单个WAV [英] iPhone SDK: Play a single WAV from a button

问题描述

我目前正在尝试此代码:

I am currently trying out this code:

NSString *path = [[NSBundle mainBundle] pathForResource:@"dream" ofType:@"m4a"];  
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];  
theAudio.delegate = self;  
[theAudio play];

但是，SDK表示ViewController没有实现AVAudioPlayer委托.

However, the SDK says that the ViewController does not implement the AVAudioPlayer Delegate.

关于使用2.2 SDK播放WAV(或M4a)的任何想法吗?

Any body any ideas on how to play a WAV (or M4a) using the 2.2 SDK?

推荐答案

您需要将<AVAudioPlayerDelegate>添加到控制器的类声明的末尾，如下所示:

You need to add <AVAudioPlayerDelegate> to the end of your controller's class declaration, along these lines:

@interface MyViewController : UIViewController <AVAudioPlayerDelegate>

这可能会生成一些有关您需要实现的委托方法的警告-遵循这些警告，您就可以办事了.

This'll probably generate some more warnings about delegate methods you need to implement - follow those and you'll be good to go.

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