Change the shape color in an Android XML

Question

I have android drawable that I\'m going to apply to the background of several TextViews

Answer 1

It's possible to do it like this

// "cellLabel" background colour of textview or button etc. 
LayerDrawable layers = (LayerDrawable) cellLabel.getBackground();
// drawable item id
GradientDrawable shape = (GradientDrawable) (layers.findDrawableByLayerId(R.id.clr));
shape.setColor(my_color);