如何在布局中随机放置小部件
How to randomly position widgets in a layout
假设我想将小部件随机放置在特定布局中,如下图所示,我该如何实现?
我正在考虑使用换行小部件,但这并没有停止工作,因为它没有随机化一行中的 children。到目前为止我的代码
return Wrap(
spacing: 30,
children: [
buildprofile(),
buildprofile(),
buildprofile(),
buildprofile(),
],
);
buildprofile() {
return Column(
children: [
CircleAvatar(
radius: 64,
backgroundColor: Colors.pink,
child: (CircleAvatar(
radius: 62,
backgroundImage: NetworkImage(profilepic),
)),
),
SizedBox(
height: 10,
),
Text(
"Sivaram",
style: mystyle(16, Colors.black, FontWeight.w700),
)
],
);
}
您可以创建 class
人,并存储个人资料名称和图像,
class Person {
String name;
String imageUrl;
}
并且在您的代码中可以将所有人员存储在数组中
List<Person> persons = [Person(), Person(),....]
Wrap(
spacing: 30,
children: _children
);
List<Widget> _children {
List<Widget> _widgets = List<Widget>();
List<Persons> _randomList = persons.shuffle();
_randomList.forEach((person) {
_widgets.add(_buildProfile(person))
});
return _widgets;
}
您可以使用 flutter_staggered_grid_view
StaggeredGridView.count(
crossAxisCount: 4,
children: List.generate(
3,
(index) => Center(
child: CircleAvatar(
radius: 64,
backgroundColor: Colors.pink,
),
)),
staggeredTiles: [
StaggeredTile.count(2, 2), // takes up 2 rows and 2 columns space
StaggeredTile.count(2, 1), // takes up 2 rows and 1 column
StaggeredTile.count(1, 2), // takes up 1 row and 2 column space
], // scatter them randomly
);
假设我想将小部件随机放置在特定布局中,如下图所示,我该如何实现?
我正在考虑使用换行小部件,但这并没有停止工作,因为它没有随机化一行中的 children。到目前为止我的代码
return Wrap(
spacing: 30,
children: [
buildprofile(),
buildprofile(),
buildprofile(),
buildprofile(),
],
);
buildprofile() {
return Column(
children: [
CircleAvatar(
radius: 64,
backgroundColor: Colors.pink,
child: (CircleAvatar(
radius: 62,
backgroundImage: NetworkImage(profilepic),
)),
),
SizedBox(
height: 10,
),
Text(
"Sivaram",
style: mystyle(16, Colors.black, FontWeight.w700),
)
],
);
}
您可以创建 class
人,并存储个人资料名称和图像,
class Person {
String name;
String imageUrl;
}
并且在您的代码中可以将所有人员存储在数组中
List<Person> persons = [Person(), Person(),....]
Wrap(
spacing: 30,
children: _children
);
List<Widget> _children {
List<Widget> _widgets = List<Widget>();
List<Persons> _randomList = persons.shuffle();
_randomList.forEach((person) {
_widgets.add(_buildProfile(person))
});
return _widgets;
}
您可以使用 flutter_staggered_grid_view
StaggeredGridView.count(
crossAxisCount: 4,
children: List.generate(
3,
(index) => Center(
child: CircleAvatar(
radius: 64,
backgroundColor: Colors.pink,
),
)),
staggeredTiles: [
StaggeredTile.count(2, 2), // takes up 2 rows and 2 columns space
StaggeredTile.count(2, 1), // takes up 2 rows and 1 column
StaggeredTile.count(1, 2), // takes up 1 row and 2 column space
], // scatter them randomly
);