Iphone audioPlayerDidFinishPlaying如何知道哪个文件已完成？

我正在使用AVAudioPlayer播放15个音频文件。音频文件需要分5组播放，每组有三个文件。一个集合中的三个文件不会更改。播放布景的顺序可能会改变

我尝试使用while循环进行iPlaying，如下所示：

while ([backgroundSound isPlaying]) {
    NSLog(@"First while loop");
}
backgroundSoundPath = [[NSBundle mainBundle] pathForResource:@"Set0File1" ofType:@"mp3"]; // *Music filename* 
backgroundSound =[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:backgroundSoundPath] error:nil];
[backgroundSound prepareToPlay];
[backgroundSound play];
while ([backgroundSound isPlaying]) {
    NSLog(@"Second while loop");
}
backgroundSoundPath = [[NSBundle mainBundle] pathForResource:@"Set0File2" ofType:@"mp3"]; // *Music filename* 
backgroundSound =[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:backgroundSoundPath] error:nil];
[backgroundSound prepareToPlay];
[backgroundSound play];
while ([backgroundSound isPlaying]) {
    NSLog(@"Third while loop");
} 

我现在意识到这是错误的，其副作用是，在播放文件的过程中，整个UI都被锁定

我知道我应该使用：

voidAudioPlayerDifinishPlaying:AVAudioPlayer*玩家成功：BOOLflag 但我不知道AudioPlayerDifinishPlay是如何确切地知道哪个文件已经播放完毕的

-(void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
     if ([player.url isEqual:url1])
     {
         // file which is in url1 stopped playing
     }
     else if ([player.url isEqual:url2])
     {
         // file which is in url2 stopped playing
     }
}

我认为这可能像-voidanimationDidStop，您可以使用valueForKeyPath来确定哪个文件已播放完毕

是否必须手动跟踪

任何能为我指明正确方向的建议都将不胜感激

---

谢谢。

当AVAudioPlayer调用AudioPlayerIDfinishPlay方法时，它将自身作为参数提供。因此，您应该检查URL以确定哪个文件刚刚播放完毕

-(void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
     if ([player.url isEqual:url1])
     {
         // file which is in url1 stopped playing
     }
     else if ([player.url isEqual:url2])
     {
         // file which is in url2 stopped playing
     }
}

---

当AVAudioPlayer调用AudioPlayerIDfinishPlay方法时，它将自身作为参数提供。因此，您应该检查URL以确定哪个文件刚刚播放完毕

-(void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
     if ([player.url isEqual:url1])
     {
         // file which is in url1 stopped playing
     }
     else if ([player.url isEqual:url2])
     {
         // file which is in url2 stopped playing
     }
}

---

这很有效。我曾经看到过其他关于url的提及，但忽略了它，认为它与文件名和路径无关。谢谢你的帮助，效果很好。我曾经看到过其他关于url的提及，但忽略了它，认为它与文件名和路径无关。谢谢你的帮助。