ios - 触发 AVAudioPlayer 停止所有声音并播放选定的声音，除非单击播放(选定的)按钮

Question

我正在创建一个一次播放一个声音的音板应用程序。我希望 UIButton 能够停止播放所有其他声音并在单击时开始播放自己的声音。我有一个 AVAudioPlayer 设置来播放所有声音(我在单击时更改声音文件 url，因为我一次只想要一个声音播放这不是问题)。我想知道如何停止所有其他声音并根据按下的按钮播放声音，但是如果单击的按钮是当前正在播放声音的按钮，则该按钮只会停止声音。我知道这可以通过分离音频播放器并触发停止事件来实现，但我想避免复制和粘贴代码并尽可能保持高效，而且我只想要/需要一个音频播放器。这是我的代码:

- (IBAction)play {
 if (audioPlayer.playing == NO) {
    NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/k.mp3", [[NSBundle mainBundle] resourcePath]]];
    NSError *error;
     [audioPlayer release];
     audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
    audioPlayer.numberOfLoops = 0;

    AVAudioSession *audiosession = [AVAudioSession sharedInstance];
    [audiosession setCategory:AVAudioSessionCategoryAmbient error:nil];

    [audioPlayer play];
    [start setTitle:@"Stop" forState:UIControlStateNormal];
}
 else
     if (audioPlayer.playing == YES) {
         [audioPlayer stop];
     [start setTitle:@"Start" forState:UIControlStateNormal];
    }
    }


- (IBAction)play2 {
if (audioPlayer.playing == NO) {
    NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/chicken.mp3", [[NSBundle mainBundle] resourcePath]]];
    NSError *error;
    [audioPlayer release];
    audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
    audioPlayer.numberOfLoops = 0;

    AVAudioSession *audiosession = [AVAudioSession sharedInstance];
    [audiosession setCategory:AVAudioSessionCategoryAmbient error:nil];

    [audioPlayer play];
    [start2 setTitle:@"Stop" forState:UIControlStateNormal];
} else
    if (audioPlayer.playing == YES) {
        [audioPlayer stop];
        [start2 setTitle:@"Start" forState:UIControlStateNormal];
    }
}

感谢任何帮助。提前致谢!

Answer 1

就这样

-(void)stopAudio{

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

}

并在每次点击时调用此函数..

- (IBAction)play2 {
    [self stopAudio];

    //Do your Stuffs
}