前言

本文主要介绍的是关于Flutter实现底部不规则导航的相关内容，分享出来供大家参考学习，下面话不多说了，来一起看看详细的介绍吧

实现方法：

1、main.dart文件

import 'package:flutter/material.dart';import 'bootom_appBar.dart';void main () =>runApp(MyApp());class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title:'不规则底部导航', //自定义主题样本 theme:ThemeData( primarySwatch:Colors.lightBlue ), home:BottomAppBarDemo(), ); }}

2、bootom_appBar.dart

import 'package:flutter/material.dart';import 'each_view.dart';class BottomAppBarDemo extends StatefulWidget { @override _BottomAppBarDemoState createState() => _BottomAppBarDemoState();}class _BottomAppBarDemoState extends State<BottomAppBarDemo> { List<Widget> _eachView; int _index = 0; @override void initState() { _eachView = List(); _eachView ..add(EachView('主页的页面')); _eachView ..add(EachView('副页的页面')); // TODO: implement initState super.initState(); } @override Widget build(BuildContext context) { return Scaffold( //变换页面 body: _eachView[_index], floatingActionButton: FloatingActionButton( onPressed: (){ Navigator.of(context).push(MaterialPageRoute(builder: (BuildContext context){ return EachView('新添加的页面'); })); }, tooltip: '添加', child: Icon( Icons.add, color: Colors.white, ), ), floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked, bottomNavigationBar: BottomAppBar( //工具栏比NavigationBar灵活 color: Colors.lightBlue, //与fab融合 //圆形缺口 shape: CircularNotchedRectangle(), child: Row( mainAxisSize: MainAxisSize.max, mainAxisAlignment: MainAxisAlignment.spaceAround, children: <Widget>[ IconButton( icon: Icon(Icons.home), color: Colors.white, onPressed: (){ setState(() { _index = 0; }); }, ), IconButton( icon: Icon(Icons.airport_shuttle), color: Colors.white, onPressed: (){ setState(() { _index = 1; }); }, ) ], ), ), ); }}

3、each_view.dart

import 'package:flutter/material.dart';class EachView extends StatefulWidget { String _title; EachView(this._title); @override _EachViewState createState() => _EachViewState();}class _EachViewState extends State<EachView> { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar(title: Text(widget._title),), body: Center(child: Text(widget._title),), ); }}

4、效果展示

总结

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，谢谢大家对的支持。