直播系统代码，flutter手写一个底部导航栏
使用方式如下：
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.white,
bottomNavigationBar: XXNaviBar(
onDestinationSelected: (value) => {
developer.log("click tab $value"),
if (currentPageIndex != value)
{
setState(() {
currentPageIndex = value;
})
}
},
icons: [
XXNaviIcon(
normalImage: "assets/images/tabbar/home.png",
selectedImage: "assets/images/tabbar/home-selected.png",
title: "首页",
),
XXNaviIcon(
normalImage: "assets/images/tabbar/data.png",
selectedImage: "assets/images/tabbar/data-selected.png",
title: "数据",
),
XXNaviIcon(
normalImage: "assets/images/tabbar/mine.png",
selectedImage: "assets/images/tabbar/mine-selected.png",
title: "我的",
),
],
),
body: <Widget>[
Container(
color: Colors.white,
alignment: Alignment.center,
child: const Text('Page 1'),
),
Container(
color: Colors.white,
alignment: Alignment.center,
child: const Text('Page 2'),
),
Container(
color: Colors.white,
alignment: Alignment.center,
child: const Text('Page 3'),
),
][currentPageIndex],
);
}
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