如何播放AVAudioplayer中的多个文件

Question

我在plist中播放了一些歌曲，并想用AVAudioplayer一个接一个地播放它们。 但是，当第一首歌曲结束时，它停止。如何用下一首歌曲开始播放？ 我已经尝试了一个循环来计算plist中的下一个数字，但它不起作用。玩家在第一轮后停止。这应该很简单，但如何？ 这是我的代码的一部分。像我一样可以使用循环吗？

NSString *soundsPath = [[NSBundle mainBundle] pathForResource:@"soundslist" 
ofType:@"plist"]; 
soundsList = [[NSArray alloc] initWithContentsOfFile:soundsPath]; 


for (int n = 1; n<=5;n++) { 
NSString *filename = [soundsList objectAtIndex:n]; //n is number in plist, counting upwards in a for...loop 


NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:@"au"]; 
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: path]; 

sound = [[AVAudioPlayer alloc] initWithContentsOfURL : fileURL error:nil]; 

sound.delegate = self; 
} 

Answer 1

尝试这样it'l帮助你，

-(void)viewDidLoad{ 

NSString *soundsPath = [[NSBundle mainBundle] pathForResource:@"soundslist" 
ofType:@"plist"]; 
soundsList = [[NSArray alloc] initWithContentsOfFile:soundsPath]; 
[self AddSongToAvplayer]; 
} 

-(void)AddSongToAvplayer{ 

NSString *filename = [soundsList objectAtIndex:n]; //n is number in plist, counting upwards in a for...loop 


NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:@"au"]; 
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: path]; 

sound = [[AVAudioPlayer alloc] initWithContentsOfURL : fileURL error:nil]; 

sound.delegate = self; 
n++; 


if(n<=[sound count]) 
    [NSTimer scheduledTimerWithTimeInterval:sound.duration target:self selector:@selector(AddSongToAvplayer) userInfo:nil repeats:NO]; 
} 

在上面的代码 sound.duration

给出特定歌曲的一个时间间隔，并基于该那首歌结束后，您可以通过调用该方法使用定时器。如果最后一首歌曲停止播放NSTimer。

编辑：

-(IBAction)AddSongToAvplayer{ 
     if(n<=[sound count]){ 

    NSString *filename = [soundsList objectAtIndex:n]; //n is number in plist, counting upwards in a for...loop 


    NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:@"au"]; 
    NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: path]; 

    sound = [[AVAudioPlayer alloc] initWithContentsOfURL : fileURL error:nil]; 

    sound.delegate = self; 
    n++; 

    } 

    }