我想使用此导航条形码,并且它可以正常工作,但问题是我不知道如何使可轻敲的项目显示我想要的dart文件?例如:添加:显示add.dart,列表:show list.dart和...
这里是代码:
import 'package:flutter/material.dart';
import 'package:curved_navigation_bar/curved_navigation_bar.dart';
void main() => runApp(MaterialApp(home: BottomNavBar()));
class BottomNavBar extends StatefulWidget {
@override
_BottomNavBarState createState() => _BottomNavBarState();
}
class _BottomNavBarState extends State<BottomNavBar> {
int _page = 0;
GlobalKey _bottomNavigationKey = GlobalKey();
@override
Widget build(BuildContext context) {
return Scaffold(
bottomNavigationBar: CurvedNavigationBar(
key: _bottomNavigationKey,
index: 0,
height: 50.0,
items: <Widget>[
Icon(Icons.add, size: 30),
Icon(Icons.list, size: 30),
Icon(Icons.compare_arrows, size: 30),
Icon(Icons.call_split, size: 30),
Icon(Icons.perm_identity, size: 30),
],
color: Colors.white,
buttonBackgroundColor: Colors.white,
backgroundColor: Colors.blueAccent,
animationCurve: Curves.easeInOut,
animationDuration: Duration(milliseconds: 600),
onTap: (index) {
setState(() {
_page = index;
});
},
),
body: Container(
color: Colors.blueAccent,
child: Center(
child: Column(
children: <Widget>[
Text(_page.toString(), textScaleFactor: 10.0),
RaisedButton(
child: Text('Go To Page of index 1'),
onPressed: () {
final CurvedNavigationBarState navBarState =
_bottomNavigationKey.currentState;
navBarState.setPage(1);
},
)
],
),
),
));
}
}
您可以使用index
显示所需的页面。
import 'package:flutter/material.dart';
import 'package:curved_navigation_bar/curved_navigation_bar.dart';
void main() => runApp(MaterialApp(home: BottomNavBar()));
class BottomNavBar extends StatefulWidget {
@override
_BottomNavBarState createState() => _BottomNavBarState();
}
class _BottomNavBarState extends State<BottomNavBar> {
int _pageIndex = 0;
GlobalKey _bottomNavigationKey = GlobalKey();
List pages = [
MyRoute(
iconData: Icons.add,
page: Page1(),
),
MyRoute(
iconData: Icons.compare_arrows,
page: Page2(),
)
];
@override
Widget build(BuildContext context) {
return Scaffold(
bottomNavigationBar: CurvedNavigationBar(
key: _bottomNavigationKey,
index: 0,
height: 50.0,
items: pages
.map((p) => Icon(
p.iconData,
size: 30,
))
.toList(),
color: Colors.white,
buttonBackgroundColor: Colors.white,
backgroundColor: Colors.blueAccent,
animationCurve: Curves.easeInOut,
animationDuration: Duration(milliseconds: 600),
onTap: (index) {
setState(() {
_pageIndex = index;
});
},
),
backgroundColor: Colors.blueAccent,
body: pages[_pageIndex].page,
);
}
}
class MyRoute {
final IconData iconData;
final Widget page;
MyRoute({this.iconData, this.page});
}
class Page1 extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Center(child: Text('Page1'));
}
}
class Page2 extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Center(child: Text('Page2'));
}
}