iphone-common-codes-ccteam源代码 CCSound.m

//  
//  CCSound.m  
//  CCFC  
//  
//  Created by xichen on 12-1-3.  
//  Copyright 2012 ccteam. All rights reserved.  
//
  
  
#import "CCSound.h"  
#import <MediaPlayer/MediaPlayer.h>  
  
  
  
  
@implementation CCSound  
  
  
// add a volume changed observer event  
// the selector will be only called when the ipod player is playing and the current application is active  
+ (void)addVolumeChangeObserver:(id)observer sel:(SEL)sel  
{  
        MPMusicPlayerController *musicPlayer = [MPMusicPlayerController iPodMusicPlayer];  
    [musicPlayer beginGeneratingPlaybackNotifications];  
    [[NSNotificationCenter defaultCenter] addObserver:observer   
                                             selector:sel   
                                                 name:MPMusicPlayerControllerVolumeDidChangeNotification   
                                               object:musicPlayer];  
}  
  
  
@end

 

可能有更新:

googlecode链接地址：http://code.google.com/p/iphone-common-codes-ccteam/source/browse/trunk/CCFC/files/CCSound.m

github地址: https://github.com/cxsjabc/iphone-common-codes-ccteam/tree/master/CCFC/files/CCSound.m