如何在listView上实现动作侦听器？

I have been struggling for days trying to find the proper way to implement an action listener to a ListView. What I really want to accomplish is to create a ListView and whenever the user clicks any item, the previous Activity will be switched. I am really new at this so please help me, I would really appreciate it a lot. If you can tell me the what I'm doing wrong on my code that would be awesome!I have been struggling for days trying to find