我注意到 Scaffold.drawer 的 Drawer 只有在存在 Scaffold 的 AppBar 时才会显示。
但是,我使用了位于 BottomNavigationBar 中的 BottomAppBar,而不是 AppBar。
如何让 Drawer 与 BottomAppBar 一起使用? 这是我的代码下面没有出现抽屉
class homieclass extends State<homie>{
@覆盖 小部件构建(BuildContext 上下文){ 返回 Material 应用程序( debugShowCheckedModeBanner:假, 家:新脚手架(
backgroundColor: Colors.white70.withOpacity(0.9),
floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked,
floatingActionButton: FloatingActionButton(onPressed: (){},backgroundColor: Colors.redAccent,child: ImageIcon(new AssetImage("ast/hello123.png")),),
bottomNavigationBar: BottomAppBar(child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,mainAxisSize: MainAxisSize.max,children: <Widget>[
IconButton(icon: Icon(Icons.menu), onPressed: (){}),IconButton(icon: Icon(Icons.message), onPressed: (){}),
],
),
),
body: new Column(
children: <Widget>[new SizedBox(height: 50.0, ),
Container(margin: EdgeInsets.only(left: 0.0),child: new Text("Events",textAlign: TextAlign.left,style: TextStyle(fontFamily: 'ssfr',fontSize: 35.0,fontWeight: FontWeight.bold),),)
, Container(margin: EdgeInsets.only(left: 10.0,right: 10.0) ,width: 360.0,height: 40.0,decoration: new BoxDecoration(color: Colors.blueGrey.withOpacity(0.2),
border: new Border.all(color: Colors.blueGrey.withOpacity(0.0), width: 2.0),
borderRadius: new BorderRadius.circular(10.0),),child: new Row(children: <Widget>[SizedBox(width: 10.0,),Icon(Icons.search,color: Colors.blueGrey.withOpacity(0.9),),Text(" Search",style: TextStyle(fontFamily: 'ssft',color: Colors.blueGrey,fontSize: 20.0),)],),)
,new SizedBox(height: 10.0,),new SizedBox(
height: 5.0,
child: new Center(
child: new Container(
margin: new EdgeInsetsDirectional.only(start: 1.0, end: 1.0),
height: 2.0
,
color: Colors.redAccent.withOpacity(0.8),
),
),
),],
),drawer: new Drawer(
child: new ListView(
children: <Widget>[ListTile(title: Text("hello"),)],
),
),
),
);
}
最佳答案
它非常适合我。这是一个工作示例,底部栏中有一个专用的“显示抽屉”按钮(抽屉也可以从左侧拖入):
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Playground',
home: TestPage(),
);
}
}
class TestPage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Text('Body'),
),
bottomNavigationBar: Builder(builder: (BuildContext context) {
return BottomAppBar(
color: Colors.orange,
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
IconButton(icon: Icon(Icons.menu), onPressed: () {
Scaffold.of(context).openDrawer();;
}),
IconButton(icon: Icon(Icons.message), onPressed: () {}),
],
),
);
},),
drawer: Drawer(
child: SafeArea(
right: false,
child: Center(
child: Text('Drawer content'),
),
),
),
);
}
}
Flutter 版本:最新的主版本(虽然我也很确定它适用于 beta 版本)
https://stackoverflow.com/questions/51891799/