AVAudioPlayer在呼叫停止時崩潰

我想在特定時間段內運行3個音頻文件，然後停止它們。我可以同時播放所有3個audop文件，不用擔心，但是當我嘗試阻止它們時，我收到了這個錯誤。AVAudioPlayer在呼叫停止時崩潰

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[ViewController stopMusic:]: unrecognized selector sent to instance

這就是我的代碼看起來像播放文件。

- (void)backgroundTap { 
    [customerNameTextField resignFirstResponder]; 
    [customerEmailTextField resignFirstResponder]; 


    if ((audioPlayer) || (audioPlayer2) || (audioPlayer3)) { 
     NSLog(@"still playing"); 
    } else { 

     [NSTimer scheduledTimerWithTimeInterval:10.0 
             target:self 
             selector:@selector(stopMusic:) 
             userInfo:nil 
             repeats:NO]; 



     // create audio session 
     [[AVAudioSession sharedInstance] setDelegate: self]; 
     NSError *setCategoryError = nil; 
     [[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error: &setCategoryError]; 
     if (setCategoryError) 
      NSLog(@"Error setting category! %@", setCategoryError); 

     // path 
     NSString *soundPath =[[NSBundle mainBundle] pathForResource:@"tuiSong" ofType:@"mp3"]; 
     NSURL *soundURL = [NSURL URLWithString:soundPath]; 
     NSError *error; 
     audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:soundURL error:&error]; 
     audioPlayer.numberOfLoops = 0; 
     [audioPlayer setVolume: 0.1]; 

     // path 
     NSString *soundPath2 =[[NSBundle mainBundle] pathForResource:@"beachSong" ofType:@"mp3"]; 
     NSURL *soundURL2 = [NSURL URLWithString:soundPath2]; 
     NSError *error2; 
     audioPlayer2 = [[AVAudioPlayer alloc] initWithContentsOfURL:soundURL2 error:&error2]; 
     audioPlayer2.numberOfLoops = 0; 
     [audioPlayer2 setVolume: 0.06]; 

     // path 
     NSString *soundPath3 =[[NSBundle mainBundle] pathForResource:@"CicadaSong" ofType:@"mp3"]; 
     NSURL *soundURL3 = [NSURL URLWithString:soundPath3]; 
     NSError *error3; 
     audioPlayer3 = [[AVAudioPlayer alloc] initWithContentsOfURL:soundURL3 error:&error3]; 
     audioPlayer3.numberOfLoops = 5; 
     [audioPlayer3 setVolume: 0.05]; 

     // play bells 
     if (!audioPlayer) { 
      NSLog(@"localizedDescription : %@", [error localizedDescription]); 
     } else { 
      if (![audioPlayer isPlaying]) { 
       [audioPlayer play]; 
      } 
      if (![audioPlayer2 isPlaying]) { 
       [audioPlayer2 play]; 
      } 
      if (![audioPlayer isPlaying]) { 
       [audioPlayer3 play]; 
      } 
     } 
    } 


}

然後這就是我所做的停止音頻。

- (void)stopMusic { 

    if ([audioPlayer isPlaying]) { 
     [audioPlayer stop]; 
     audioPlayer = nil; 
    } 

    if ([audioPlayer2 isPlaying]) { 
     [audioPlayer2 stop]; 
     audioPlayer2 = nil; 
    } 

    if ([audioPlayer3 isPlaying]) { 
     [audioPlayer3 stop]; 
     audioPlayer3 = nil; 
    } 
}

任何幫助將不勝感激。

來源

2013-12-20 HurkNburkS

錯誤消息正在完美地描述問題。你的NSTimer呼叫stopMusic:。但是沒有方法stopMusic:。有一種方法stopMusic。 stopMusic與stopMusic:（帶冒號）不一樣。你必須得到正確的名字。

來源

2013-12-20 01:05:21 matt

哎呦......那真的很愚蠢......我想我需要去吃飯。大聲笑對不起，感謝你的幫助 – HurkNburkS

AVAudioPlayer在呼叫停止時崩潰

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