iphone - 如何在AVAudioplayer中播放多个文件

Question

我在plist中有一些歌曲，想使用AVAudioplayer播放一首。
但是当第一首歌曲结束时，它停止了。如何开始播放下一首歌曲？
我尝试了一个循环，该循环计数到plist中的下一个数字，但是它不起作用。玩家在第一轮后停止。这应该很简单，但是如何？
这是我的代码的一部分。是否可以像我一样使用循环？

    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

尝试这样可以帮助您，

-(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];
}

在上面的代码中 sound.duration给出了该特定歌曲的timeInterval，并基于该歌曲的完成时间后，您可以使用计时器调用该方法。如果最后一首歌曲出现，则停止该 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++;

    }

    }