I am aiming to make a simple music player app and I am new to android development I wanted that the app should play the next song when the current song is finished so I paste the code of next Button inside. It does not work according to what I needed it changes the song but the seekbar is stuck at the starting point.....Also when I touch the seek bar the app crashes and reopen.... I am stuck in this for quite a long time so I have attached github link of the public repo.Also the app is providing a bit laggy experience and sometimes stop working
PLS help Project Repo Thanks for the help