How i assign audioPlayerDidFinishPlaying is successfull.

Question

Hello

I am using avaudioplayer in my application and my all songs are overlapping(when i back on the list without stoping playing song then if i play another song then songs are playing simulteneously)

i think if i assign audioplayerDidfinishPlaying is successfull then its shortouted. but how i implement this and if any other solutions is there then please help me.