Question

我正在尝试整理一个小应用程序来学习一些iOS开发的基础知识，如果这是基本的话请原谅我。我看了很多线程，但我想有几个特定于这个应用程序的问题。

按下按钮时，我看到了几种不同的音频播放方式。一个涉及“CFBundleRef”（How to play iPhone tap sound?）和另一个“AVAudioPlayer”（Play Audio iOS Objective-C）。我如何知道使用哪个以及何时适当使用？
我现在使用第一个选项运行音频，但我似乎无法弄清楚当按下另一个按钮时声音是如何停止的。我怎么能这样做？
除了我所做的以外，有没有更简单的方法将15个声音/按钮链接在一起？

这是.m文件：

#import "animalsViewController.h"

@interface animalsViewController ()

@end


@implementation animalsViewController


-(IBAction) boom; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"bird", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom2; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"bird2", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}
-(IBAction) boom3; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"bird3", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom4; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"chicken1", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom5; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"chicken2", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom6; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"cow", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom7; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"dog1", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom8; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"duck", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom9; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"horse", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom10; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"lion", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom11; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"monkey", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom12; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"owl", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom13; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"pig", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom14; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"rooster", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}

-(IBAction) boom15; {

    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"sheep", CFSTR ("mp3"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);

}


- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}






@end

这是.h文件：

#import <UIKit/UIKit.h>
#import <AudioToolbox/AudioToolbox.h>

@interface animalsViewController : UIViewController{


}

-(IBAction) boom;
-(IBAction) boom2;
-(IBAction) boom3;
-(IBAction) boom4;
-(IBAction) boom5;
-(IBAction) boom6;
-(IBAction) boom7;
-(IBAction) boom8;
-(IBAction) boom9;
-(IBAction) boom10;
-(IBAction) boom11;
-(IBAction) boom12;
-(IBAction) boom13;
-(IBAction) boom14;
-(IBAction) boom15;

@end

Answer 1

使用单个AVAudioPlayer实例，类似于以下内容..

-(void)playAudioOfType:(int)type{

     [self stopAudio];


     NSString *sound=@"";

     switch (type) {
       case 1:
          sound=@"bird";
        break;

       case 2:
          sound=@"bird2";
        break;

       case 3:
          sound=@"bird3";
        break;

       case 4:
          sound=@"chicken";
        break;

       default:
         break;
      }


      NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
                                     pathForResource:sound
                                     ofType:@"mp3"]];



NSError *error;
if(url){
    audioPlayer = [[AVAudioPlayer alloc]
                   initWithContentsOfURL:url
                   error:&error];



    if (error)
    {
        NSLog(@"Error in audioPlayer: %@", 
              [error localizedDescription]);
    } else {
        audioPlayer.delegate = self;
        [audioPlayer prepareToPlay];
    }

    [audioPlayer play];
}


 }

 -(void)stopAudio{

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


}

然后你可以调用下面的每个动作

-(IBAction) boom; {
     [self playAudioOfType:1]; //Will play bird.mp3
}

-(IBAction) boom1; {
     [self playAudioOfType:2]; //Will play bird2.mp3
}

-(IBAction) boom2; {
     [self playAudioOfType:3]; //Will play bird3.mp3
}

找一个测试应用here ..你只需要在应用中添加mp3文件，它应该可以工作..

Answer 2

试试此链接：Simple sound question

在这个问题的最后看到......

    -(void)stop
    {
            AudioServicesDisposeSystemSoundID (_soundID);
            self.IsPlaying = FALSE;
    }

听到多个按钮，当其他按钮在iOS中播放时停止

2 个答案: