[SOLVED] How to set metadata of sound track (artwork, album, etc.) on the lock screen iOS?

How to set metadata of sound track (artwork, album, etc.) on the lock screen iOS?

I'm trying to develop a simple audio player app for iPhone or iPad. I'm made working on the background mode and controlling playback on the lock screen, but I can't set data about current music track (artwork, album, etc.) on the lock screen like it work on default iOS music player. How can i accomplish this? Any help is appreciated in advance, Thank You.

Solution

I solved this problem. In order to show the metadata about sound track (artwork, album, title, etc.) on the lock screen iOS you should use MPNowPlayingInfoCenter class. For example:

    MPMediaItemArtwork *albumArtwork = [[MPMediaItemArtwork alloc] initWithImage:[UIImage imageNamed:@"artwork.png"]];
    NSDictionary *nowPlayingInfo = @{MPMediaItemPropertyTitle: @"Title",
                                     MPMediaItemPropertyArtist: @"Artist",
                                     MPMediaItemPropertyAlbumTitle: @"Album",
                                     MPMediaItemPropertyArtwork: albumArtwork};
    [[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo:nowPlayingInfo];