Flutter 如何在flatter中建立可扩展列表
Flutter 如何在flatter中建立可扩展列表,flutter,dart,flutter-layout,flutter-dependencies,expand,Flutter,Dart,Flutter Layout,Flutter Dependencies,Expand,当在“颤振”中单击应用程序栏中的图标时,如何实现这一点?如果您指的是三个点,那么弹出菜单按钮就是一种方法: Scaffold( appBar: AppBar( title: Text('Chat'), actions: <Widget>[ PopupMenuButton<String>( itemBuilder: (context) => [ Popu
当在“颤振”中单击应用程序栏中的图标时,如何实现这一点?如果您指的是三个点,那么弹出菜单按钮就是一种方法:
Scaffold(
appBar: AppBar(
title: Text('Chat'),
actions: <Widget>[
PopupMenuButton<String>(
itemBuilder: (context) => [
PopupMenuItem(
value: 1,
child: Text("Do something..."),
),
],
onSelected: (value) async => {
_doSomething(),
},
),
],
),
drawer: AppDrawer(),
body: something here...
);
脚手架(
appBar:appBar(
标题:文本(“聊天”),
行动:[
弹出菜单按钮(
itemBuilder:(上下文)=>[
PopupMenuItem(
价值:1,
孩子:文本(“做点什么…”),
),
],
onSelected:(值)异步=>{
_doSomething(),
},
),
],
),
抽屉:AppDrawer(),
身体:这里有东西。。。
);
非常感谢