Changing a color resource programmatically?

Question

I got a little circle TextView from Vicky Vicent ("Android: Creating a Circular TextView?") In my situation this one should show a Level and I would like to define the background color for certain areas by myself. How can I change this one with my Activity?

<solid android:color="#9FE554" />

Answer 1

To change the solid color of the xml drawable resource use the below code.

GradientDrawable bgShape = (GradientDrawable)textview.getBackground();
bgShape.setColor(Color.BLACK);