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