使用RectSwiperPaginationBuilder时无效

[gzhongcheng]

修改如下：
swiper_pagination.dart
第115行：

for (int i = 0; i < itemCount; ++i) {
      bool active = i == activeIndex;
      Size size = active ? this.activeSize : this.size;
      Color actColor = active ? activeColor : color;
      list.add(Container(
        width: size.width,
        height: size.height,
        color: actColor,
        key: Key("pagination_$i"),
        margin: EdgeInsets.all(space),
      ));
    }

[xingjiahe]

谢谢,用您的方法解决了