我這裡建立一個model   操作正確或者錯誤  直接呼叫方法(注：官方demo 模擬器是可以播放聲音,真機是不行的哦)

官方demo: (此法  真機不能播放聲音)

- (void)getErrorSound{

    NSURL *tapSound   = [[NSBundle mainBundle] URLForResource: @"scan_error"
                                                withExtension: @"wav"];
    self.soundFileURLRef = (__bridge CFURLRef )tapSound;
    AudioServicesCreateSystemSoundID (
                                      soundFileURLRef,
                                      &soundFileObject
                                      );
    AudioServicesPlaySystemSound (soundFileObject);
}
- (void)getRightSound{
    
    NSURL *tapSound   = [[NSBundle mainBundle] URLForResource: @"beep"
                                                withExtension: @"wav"];
    self.soundFileURLRef = (__bridge CFURLRef )tapSound;
    AudioServicesCreateSystemSoundID (
                                      soundFileURLRef,
                                      &soundFileObject
                                      );
    AudioServicesPlaySystemSound (soundFileObject);
    
}
 

手機能播放聲音完整demo寫法   

程式碼如下  .h

#import <Foundation/Foundation.h>
#include <AudioToolbox/AudioToolbox.h>

@interface SoundModel : NSObject

@property (readwrite)   CFURLRef        soundFileURLRef;
@property (readonly)    SystemSoundID   soundFileObject;
- (void)getRightSound;
- (void)getErrorSound;
@end
 

#import "SoundModel.h"

@implementation SoundModel

@synthesize soundFileURLRef;
@synthesize soundFileObject;

- (void)getErrorSound{

//    NSURL *tapSound   = [[NSBundle mainBundle] URLForResource: @"scan_error"
//                                                withExtension: @"wav"];
    
    soundFileURLRef  =  CFBundleCopyResourceURL (
                                                       CFBundleGetMainBundle(),
                                                       CFSTR ("scan_error"),
                                                       CFSTR ("wav"),
                                                       NULL
                                                       );
    AudioServicesCreateSystemSoundID (
                                      soundFileURLRef,
                                      &soundFileObject
                                      );

    AudioServicesPlaySystemSound (soundFileObject);
}
- (void)getRightSound{
    
    soundFileURLRef  =  CFBundleCopyResourceURL (
                                                 CFBundleGetMainBundle(),
                                                 CFSTR ("beep"),
                                                 CFSTR ("wav"),
                                                 NULL
                                                 );
    AudioServicesCreateSystemSoundID (
                                      soundFileURLRef,
                                      &soundFileObject
                                      );
    
    AudioServicesPlaySystemSound (soundFileObject);
    
}