public BaseViewHolder setBackgroundColor(int viewId, int color) {
        View view = getView(viewId);
        view.setBackgroundColor(color);
        return this;
    }
Will set background color of a view.

@param viewId The view id.
@param color  A color, not a resource id.
@return The BaseViewHolder for chaining.
common/src/main/java/com/sxjs/common/base/baseadapter/BaseViewHolder.java