iOS development, control music player

How to control the iOS system comes with a music player it?

Import header file

#import <MediaPlayer/MediaPlayer.h>

    //定义变量
    MPMusicPlayerController *m_musicPlayer;   //音乐播放器MPMusicPlaybackState m_playbackState;     //播放状态

Play state is determined by the program,

[Playback], the music is stopped; [stop] to open the music, as follows

                if (m_playbackState == MPMusicPlaybackStatePlaying){
                    [m_musicPlayer pause];
                }

                if (m_original_playState == MPMusicPlaybackStateStopped || m_playbackState == MPMusicPlaybackStatePaused || m_playbackState == MPMusicPlaybackStateInterrupted) {
                    [m_musicPlayer play];
                }

This MPMusicPlayerController, the player can control many functions. Consult the manual it ~