public BottomNavigationBar setActiveColor(@ColorRes int activeColor) {
        this.mActiveColor = ContextCompat.getColor(getContext(), activeColor);
        return this;
    }
@param activeColor res code for the default active color
@return this, to allow builder pattern
common/src/main/java/com/sxjs/common/widget/bottomnavigation/BottomNavigationBar.java