单击按钮时如何将页面滑动到屏幕上？

I basically have a menu that slides onto the screen when you press a button. And on the menu I have a few buttons that currently don't do anything. What I want them to do is whenever a user clicks on a button I want the page to slide in from the bottom of the screen. I have tried to do this myself but for some reason it just closes the menu whenever I press one of the buttons.I basically have a menu that slides onto the sc