我有一个带有颜色的底部导航栏。当我单击最后一个按钮时,颜色变为白色...
最后一个按钮显示一些我可以刷卡的卡片。 为此,我在这里使用代码:https://github.com/devefy/Flutter-Story-App-UI
我试图用其他东西来更改return container(),但是没有什么好事的。
这是我的代码
void _onItemTapped(int index) {
setState(() {
if (edifice != null) _selectedIndex = index;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.unEdifice.vocable),
backgroundColor: color_edifices,
),
body: Center(
child: edifice == null
? CircularProgressIndicator()
: _selectedIndex == 5
? SingleChildScrollView(
child: Column(
children: <Widget>[
Stack(
children: <Widget>[
CardScrollWidget(currentPage),
Positioned.fill(
child: PageView.builder(
itemCount: edifice.commentaires.length,
controller: controller,
reverse: true,
itemBuilder: (context, index) {
return Container(
);
},
),
)
],
),
],
),
)
: _widgetOptions.elementAt(_selectedIndex),
),
bottomNavigationBar: BottomNavigationBar(
items: const <BottomNavigationBarItem>[
BottomNavigationBarItem(
backgroundColor: color_edifices,
icon: Icon(GaeoIcons.church, color: Colors.white),
title: Text('Edifice', style: buttonTextStyle),
),
BottomNavigationBarItem(
icon: Icon(GaeoIcons.location_on, color: Colors.white),
title: Text('Adresses', style: buttonTextStyle),
),
BottomNavigationBarItem(
icon: Icon(GaeoIcons.group, color: Colors.white),
title: Text('Responsables', style: buttonTextStyle),
),
BottomNavigationBarItem(
icon: Icon(GaeoIcons.truck, color: Colors.white),
title: Text('Distributions', style: buttonTextStyle),
),
BottomNavigationBarItem(
icon: Icon(GaeoIcons.group, color: Colors.white),
title: Text('Contacts', style: buttonTextStyle),
),
BottomNavigationBarItem(
icon: Icon(GaeoIcons.comment, color: Colors.white),
title: Text('Commentaires', style: buttonTextStyle),
),
],
currentIndex: _selectedIndex,
selectedItemColor: Colors.amber[800],
onTap: _onItemTapped,
),
);
}
}`
您会明白我所含图片的意思
感谢您的帮助
答案 0 :(得分:0)
我已尝试使用Story App UI模拟您的案例
请尝试
1.添加BottomNavigationBar的backgroundColor
2.使用BottomNavigationBarType.fixed和fixedColor
另请参阅Flutter BottomNavigationBar Colors
代码段
bottomNavigationBar: BottomNavigationBar(
backgroundColor: Colors.brown,
type: BottomNavigationBarType.fixed,
fixedColor: Colors.white,
items: const <BottomNavigationBarItem>[
BottomNavigationBarItem(
backgroundColor: Colors.white,
icon: Icon(Icons.access_time, color: Colors.white),
title: Text('Edifice', ),
),
BottomNavigationBarItem(
icon: Icon(Icons.access_alarm, color: Colors.white),
title: Text('Adresses', ),
),
],
)
使用BottomNavigationBar测试Story App UI的结果