如何在flutter中setchanged方法时禁用ui构建

Question

我有一个图形视图我的应用程序，每当我的函数工作时，它也在重建如何控制我的UI

var response = await getdashboarddata(tokenkey);
setState(() {

});

Answer 1

使用FutureBuilder

Widget projectWidget() {
return FutureBuilder(
builder: (context, projectSnap) {
if (projectSnap.connectionState == ConnectionState.none &&
projectSnap.hasData == null) {
//print('project snapshot data is: ${projectSnap.data}');
return Container();
}
return ListView.builder(
itemCount: projectSnap.data.length,
itemBuilder: (context, index) {
ProjectModel project = projectSnap.data[index];
return Column(
children: <Widget>[
// Widget to display the list of project
],
);
},
);
},
future: getdashboarddata(tokenkey),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('ProjectList'),
),
body: projectWidget(),
);
}