我正在尝试建立一个自定义列表项。当我尝试为列表项分配框半径时,遇到以下语法错误:
**The argument type 'BoxShadow' can't be assigned to the parameter type 'List<BoxShadow>'.**
似乎我无法为列表分配阴影。我是flutter的新手,有没有一种方法可以将自定义框阴影添加到AnimatedList()的列表项中。我提供了以下代码:
Widget _buildItem(UserModel user, [int index]) {
return Container(
padding: EdgeInsets.all(8.0),
margin: EdgeInsets.symmetric(horizontal: 10.0, vertical: 6.0),
decoration: BoxDecoration(
color: Colors.grey[50],
borderRadius: BorderRadius.all(Radius.circular(5.0)),
boxShadow: BoxShadow(
blurRadius: 5.0
)
),
child: Row(
children: <Widget>[
InkWell(
child: CircleAvatar(
radius: 30.0,
backgroundImage: NetworkImage(user.photo, scale: 64.0),
),
onLongPress: index != null ? () => deleteUser(index) : null,
)
],
),
);
}
答案 0 :(得分:2)
因为boxShadow
必须包含列表[],
您的解决方法是
...
boxShadow: [
BoxShadow(
color: Colors.amber.shade100,
blurRadius: 15.0,
// has the effect of softening the shadow
// spreadRadius: 2.0,
// has the effect of extending the shadow
offset: Offset(
1.0, // horizontal, move right 10
5.0, // vertical, move down 10
),
)
],