public void setFullDotDrawable(int drawableId) {
        mFullDotDrawableId = getResources().getDrawable(drawableId);
    }
Sets a custom full dot drawable for the {@link ImageView}s.
@param drawableId the resource Id for a custom drawable
lib/src/main/java/com/github/omadahealth/lollipin/lib/views/PinCodeRoundView.java