Question

is it possible to change
1)rectable box to circular
2)add a png to alert box
3)any custom UI

Answer 1

A UIAlertView is a UIView just like anything else. You can add whatever you want to it.

I would try setting up a UIAlertView with some blank lines for the message (to give you space to place your own elements) and adding elements the way you would anywhere else:

[alertView addSubview:myAwesomeButton];