Add new ball every time button is pressed

Hi! I am making a app that when you shake the phone, snow/glitter appears randonly thru the canvas using balls. But I want to make a button that adds more and more snow/glitter infinitely, can someone help ?

Hello,

Maybe infinite is too much, but take a look here:

Try this approach:

No Balls or Sprites, just some bookkeeping and redrawing.