Flutter：带有CachedNetworkImageProvider的BottomNavigationBarItem

Question

如何获取BottomNavigationBarItem来加载CachedNetworkImageProvider

BottomNavigationBarItem(
 icon: Icon(
   CachedNetworkImageProvider(ub.imageUrl)
 ),
 title: Text('Profile'),
),

发生错误：“无法将参数类型CachedNetworkImageProvider分配给IconData的参数类型”

Answer 1

使用Image小部件代替图标，然后在图像小部件本身中提供CachedNetworkImageProvider。