Programmatically change color of shape in layer list

Question

How can I programmatically change the color (#000000) of a shape in a layer list?

Here is my layer list:

Answer 1

You can also get the drawable or background of the view and set it as follows.

LayerDrawable layerDrawable = (LayerDrawable) view.getDrawable(); //view.getBackground()
GradientDrawable gradientDrawable = (GradientDrawable) layerDrawable
                .findDrawableByLayerId(R.id.layer_list_item_id);
gradientDrawable.setColor(ContextCompat.getColor(getContext(), R.color.colorPrimary));