android making a music app accessing the sdcard for music data help/ info

So I am building this music app which so far just scans a specific folder inside the SD card. This returns the paths and then plays them.

A few hours ago I got informed that there is like a media file database in the android system so

1. I am wondering if this media file database is there and if I can in some way get it to return all audio files with开发者_如何学Go a path and then play them

2. I am wondering if there is any way I can get album cover and artist information from this database also

I have been reseraching on MediaStore and MediaScan connection but i can't find any thing so I need some sample code please.

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You did say please... so maybe something like the following links. They might not have everything you want, but they all contain information that is relevant to your project. When searching or trying to find a solution, don't give up when you can't find exactly what you need. As long as something has some relevant information, take it and use it. It's how developers/pirates work.

http://davanum.wordpress.com/2007/12/29/android-videomusic-player-sample-from-local-disk-as-well-as-remote-urls/

or

http://davanum.wordpress.com/2009/12/04/android-%E2%80%93-videomusic-player-sample-take-2/

Or even on a SO page

Android mp3 player

You might want to check the references as well: http://developer.android.com/guide/topics/media/index.html