MPMusicPlayerController not play on background

i am using MPMusicPlayerController in开发者_JAVA百科 my app and when i enter to background it stop playing.

this is how i add it :

musicPlayer = [MPMusicPlayerController iPodMusicPlayer];

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The iPodMusicPlayer is always enabled in the background. You shouldn't have to set anything. And [MPMusicPlayerController applicationMusicPlayer] won't play in the background ever. I'd say you're using the wrong MPMusicPlayerController somewhere.

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You need to indicate in your app's plist file that you want to play audio in the background.

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you create the applicationMusicPlayer it is not play in back ground. you have to create ipodMusicPlayer to overcome this.

check this out for further refference. http://developer.apple.com/library/ios/#documentation/MediaPlayer/Reference/MPMusicPlayerController_ClassReference/Reference/Reference.html#//apple_ref/doc/uid/TP40008221