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