title: android: How do you scale a circle using a seekbar?
body: <p>I've drawn a circle programmatically to act as a paint brush, but I'm having trouble scaling it. I've connected the values of the radius to progress in the seekbar methods and they scale numerically, but when I touch my tablet, the brush is still the same size. How do I get the brush to redraw itself constantly scaling while I'm sliding the seekbar? </p>