iPhone中播放声音

引入SoundEffect.h和SoundEffect.m两个文件
NSBundle *mainBundle = [NSBundle mainBundle];
UIButton *soundChicken = [[SoundEffect alloc] initWithContentsOfFile:[mainBundle pathForResource:@"Chicken" ofType:@"aif"]];
在需要播放声音的位置直接用[soundChicken play];即可实现播放.

( SoundEffect.h ) 文件源码:
#import <Foundation/Foundation.h>
#import <AudioToolbox/AudioServices.h>
@interface SoundEffect : NSObject {
    SystemSoundID _soundID;
}
- (id)initWithContentsOfFile:(NSString *)path;
- (void)play;
@end

( SoundEffect.m ) 文件源码:
#import "SoundEffect.h"
@implementation SoundEffect
- (id)initWithContentsOfFile:(NSString *)path {
    self = [super init];
    if (self != nil) {
        NSURL *aFileURL = [NSURL fileURLWithPath:path isDirectory:NO];
        if (aFileURL != nil)  {
            SystemSoundID aSoundID;
            OSStatus error = AudioServicesCreateSystemSoundID((CFURLRef)aFileURL, &aSoundID);
            if (error == kAudioServicesNoError) { // success
                _soundID = aSoundID;
            } else {
                NSLog(@"Error %d loading sound at path: %@", error, path);
                [self release], self = nil;
            }
        } else {
            NSLog(@"NSURL is nil for path: %@", path);
            [self release], self = nil;
        }
    }
    return self;
}
-(void)dealloc {
    AudioServicesDisposeSystemSoundID(_soundID);
    [super dealloc];
}
-(void)play {
    AudioServicesPlaySystemSound(_soundID);
}
@end