实例解析iOS开发中系统音效以及自定义音效的应用

-(IBAction) playSysSound:(id)sender {
         
        SystemSoundID sourceID;
        //调用NSBundle类的方法mainBundle返回一个NSBundle对象，该对象对应于当前程序可执行二进制文件所属的目录
        NSString *soundFile = [[NSBundle mainBundle] pathForResource:@"soundeffect" ofType:@"wav"];
        //一个指向文件位置的CFURLRef对象和一个指向要设置的SystemSoundID变量的指针
        AudioServicesCreateSystemSoundID((CFURLRef) [NSURL fileURLWithPath:soundFile], &soundID);
        AudioServicesPlaySystemSound(soundID); 
    }

// 
//  WQPlaySound.h 
//  WQSound 
// 
//  Created by 念茜 on 12-7-20. 
//  Copyright (c) 2012年 __MyCompanyName__. All rights reserved. 
// 
 
#import  
#import  
 
@interface WQPlaySound : NSObject 
{ 
    SystemSoundID soundID; 
} 
 
/**
 *  @brief  为播放震动效果初始化
 *
 *  @return self
 */ 
-(id)initForPlayingVibrate; 
 
/**
 *  @brief  为播放系统音效初始化(无需提供音频文件)
 *
 *  @param resourceName 系统音效名称
 *  @param type 系统音效类型
 *
 *  @return self
 */ 
-(id)initForPlayingSystemSoundEffectWith:(NSString *)resourceName ofType:(NSString *)type; 
 
/**
 *  @brief  为播放特定的音频文件初始化（需提供音频文件）
 *
 *  @param filename 音频文件名（加在工程中）
 *
 *  @return self
 */ 
-(id)initForPlayingSoundEffectWith:(NSString *)filename; 
 
/**
 *  @brief  播放音效
 */ 
-(void)play; 
 
@end 

// 
//  WQPlaySound.m 
//  WQSound 
// 
//  Created by 念茜 on 12-7-20. 
//  Copyright (c) 2012年 __MyCompanyName__. All rights reserved. 
// 
 
#import "WQPlaySound.h" 
 
@implementation WQPlaySound 
 
-(id)initForPlayingVibrate 
{ 
    self = [super init]; 
    if (self) { 
        soundID = kSystemSoundID_Vibrate; 
    } 
    return self;     
} 
 
-(id)initForPlayingSystemSoundEffectWith:(NSString *)resourceName ofType:(NSString *)type 
{ 
    self = [super init]; 
    if (self) { 
        NSString *path = [[NSBundle bundleWithIdentifier:@"com.apple.UIKit"] pathForResource:resourceName ofType:type]; 
        if (path) { 
            SystemSoundID theSoundID; 
            OSStatus error =  AudioServicesCreateSystemSoundID((__bridge CFURLRef)[NSURL fileURLWithPath:path], &theSoundID); 
            if (error == kAudioServicesNoError) { 
                soundID = theSoundID; 
            }else { 
                NSLog(@"Failed to create sound "); 
            } 
        } 
         
    } 
    return self; 
} 
 
-(id)initForPlayingSoundEffectWith:(NSString *)filename 
{ 
    self = [super init]; 
    if (self) { 
        NSURL *fileURL = [[NSBundle mainBundle] URLForResource:filename withExtension:nil]; 
        if (fileURL != nil) 
        { 
            SystemSoundID theSoundID; 
            OSStatus error = AudioServicesCreateSystemSoundID((__bridge CFURLRef)fileURL, &theSoundID); 
            if (error == kAudioServicesNoError){ 
                soundID = theSoundID; 
            }else { 
                NSLog(@"Failed to create sound "); 
            } 
        } 
    } 
    return self; 
} 
 
-(void)play 
{ 
    AudioServicesPlaySystemSound(soundID); 
} 
 
-(void)dealloc 
{  
    AudioServicesDisposeSystemSoundID(soundID); 
} 
@end 

WQPlaySound *sound = [[WQPlaySound alloc]initForPlayingVibrate]; 
[sound play]; 

WQPlaySound *sound = [[WQPlaySound alloc]initForPlayingSystemSoundEffectWith:@"Tock" ofType:@"aiff"]; 
[sound play]; 

WQPlaySound *sound = [[WQPlaySound alloc]initForPlayingSoundEffectWith:@"tap.aif"]; 
[sound play];