import 'package:flutter/material.dart'; import 'package:flutter/cupertino.dart'; import 'package:flutter_screenutil/flutter_screenutil.dart'; import 'package:akuCommunity/base/assets_image.dart'; import 'home/home_page.dart'; import 'property/property_index.dart'; import 'community/community_index.dart'; import 'personal/personal_page.dart'; class TabNavigator extends StatefulWidget { const TabNavigator({ Key key, }) : super(key: key); @override _TabNavigatorState createState() => _TabNavigatorState(); } class _TabNavigatorState extends State { PageController _pageController = PageController(); int _currentIndex = 0; DateTime _lastPressed; //页面列表 List _pages = []; @override void initState() { super.initState(); _pages = [ HomePage(), // MarketPage(), PropertyIndex(), CommunityIndex(), PersonalIndex() ]; } _buildBottomBar( String title, String unselected, String selected, ) { return BottomNavigationBarItem( icon: Image.asset( unselected, height: 44.w, width: 44.w, color: Colors.black38, ), activeIcon: Image.asset( selected, height: 44.w, width: 44.w, ), label: title, ); } @override Widget build(BuildContext context) { //底部导航来 List _bottomNav = [ _buildBottomBar( '首页', AssetsImage.TAB_HOME_UNSELECT, AssetsImage.TAB_HOME_SELECT), // _buildBottomBar( // '商城', AssetsImage.TAB_MARKET_UNSELECT, AssetsImage.TAB_MARKET_SELECT), _buildBottomBar( '物业', AssetsImage.TAB_HOUSE_UNSELECT, AssetsImage.TAB_HOUSE_SELECT), _buildBottomBar('社区', AssetsImage.TAB_MESSAGE_UNSELECT, AssetsImage.TAB_MESSAGE_SELECT), _buildBottomBar( '我的', AssetsImage.TAB_USER_UNSELECT, AssetsImage.TAB_USER_SELECT), ]; return Scaffold( body: WillPopScope( onWillPop: () async { if (_lastPressed == null || DateTime.now().difference(_lastPressed) > Duration(seconds: 1)) { //两次点击间隔超过1秒重新计算 _lastPressed = DateTime.now(); return false; } //否则关闭app return true; }, child: PageView.builder( itemBuilder: (context, index) => _pages[index], itemCount: _pages.length, controller: _pageController, // physics: NeverScrollableScrollPhysics(), onPageChanged: (index) { setState(() { _currentIndex = index; }); }, ), ), bottomNavigationBar: BottomNavigationBar( type: BottomNavigationBarType.fixed, items: _bottomNav, currentIndex: _currentIndex, selectedFontSize: 20.sp, unselectedFontSize: 16.sp, selectedItemColor: Colors.black, unselectedItemColor: Colors.black38, selectedLabelStyle: TextStyle(fontWeight: FontWeight.bold), onTap: (index) { _pageController.jumpToPage(index); }, ), ); } }