drawable - how to set a paintdrawable as view background?

Question

I'm trying to set a PaintDrawable as a background for a view in order to change the color dynamically and keep the borders but when i write :

vi.setBackground(pd);`

i got an error : NoSuchMethodError here is my code :

PaintDrawable pd = new PaintDrawable(color);

pd.setCornerRadius(4);
pd.setPadding(1, 1, 1, 1);
vi.setBackground(pd)                         
DyL.addView(vi);