用AVFoundation播放wav声音文件

Question

我正在使用AVFoundation播放wav文件.但我无法发挥它.也没有出现任何错误或警告.

XCode是4.2,设备是iOS 5.

- (IBAction) playSelectedAlarm:(id)sender {

UIButton *button = (UIButton *)sender;

int bTag = button.tag;

NSString *fileName = [NSString stringWithFormat:@"%d23333", bTag];

NSLog(@"%@", fileName);

NSString *path = [[NSBundle mainBundle] pathForResource:fileName ofType:@"wav"];

NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: path];

AVAudioPlayer *theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:NULL];

theAudio.volume = 1.0;

theAudio.delegate = self;

[theAudio prepareToPlay];

[theAudio play];

}

Answer 1

这是解决方案;

我在头文件中设置AVAudioPlayer ..

@property(nonatomic,retain)AVAudioPlayer*theAudio;

我猜'保留'解决了我的问题.因为在我发送"播放"之后,它发送"释放"来平衡分配.取消分配AVAudioPlayer后,它将停止播放音频.