It seems that is does not work with ShapeDrawable, but take a look at my GradientDrawable example:
you can create gradient drawable dynamically.. use below class
import android.graphics.drawable.GradientDrawable;
public class SomeDrawable extends GradientDrawable {
public SomeDrawable(int pStartColor, int pCenterColor, int pEndColor, int pStrokeWidth, int pStrokeColor, float cornerRadius) {
super(Orientation.BOTTOM_TOP,new int[]{pStartColor,pCenterColor,pEndColor});
setStroke(pStrokeWidth,pStrokeColor);
setShape(GradientDrawable.RECTANGLE);
setCornerRadius(cornerRadius);
}
}
and use this class as below
SomeDrawable drawable = new SomeDrawable(Color.parseColor("Start Color Code"),Color.parseColor("Center Color Code"),Color.parseColor("End Color Code"),1,Color.BLACK,00);
yourLayout.setBackgroundDrawable(drawable);