forked from lxm_flutter/FlutterUnit
102 lines
2.6 KiB
Dart
Executable File
102 lines
2.6 KiB
Dart
Executable File
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020-03-23
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/// contact me by email 1981462002@qq.com
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/// 详情:
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// {
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// "widgetId": 60,
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// "name": '可结合PageView进行切页',
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// "priority": 2,
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// "subtitle":
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// "在onTap时进行使用控制器进行切页",
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// }
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class BottomNavigationBarWithPageView extends StatefulWidget {
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@override
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_BottomNavigationBarWithPageViewState createState() =>
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_BottomNavigationBarWithPageViewState();
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}
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class _BottomNavigationBarWithPageViewState
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extends State<BottomNavigationBarWithPageView> {
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var _position = 0;
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final iconsMap = {
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//底栏图标
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"图鉴": Icons.home, "动态": Icons.toys,
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"喜欢": Icons.favorite, "手册": Icons.class_,
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"我的": Icons.account_circle,
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};
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final _colors = [
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Colors.red,
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Colors.yellow,
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Colors.blue,
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Colors.green,
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Colors.purple,
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];
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PageController _controller; //页面控制器，初始0
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@override
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void initState() {
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_controller = PageController(
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initialPage: _position,
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);
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super.initState();
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}
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Container(
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child: Column(
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children: <Widget>[
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Container(
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color: Colors.orange.withAlpha(88),
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width: MediaQuery.of(context).size.width,
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height: 150,
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child: PageView(
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controller: _controller,
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children: iconsMap.keys
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.map((e) => Center(
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child: Text(
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e,
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style: TextStyle(color: Colors.white, fontSize: 20),
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),
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))
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.toList(),
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),
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),
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_buildBottomNavigationBar()
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],
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),
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);
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}
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BottomNavigationBar _buildBottomNavigationBar() {
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return BottomNavigationBar(
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onTap: (position) {
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_controller.jumpToPage(position);
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setState(() => _position = position);
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},
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currentIndex: _position,
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elevation: 1,
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type: BottomNavigationBarType.shifting,
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fixedColor: Colors.white,
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iconSize: 25,
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selectedLabelStyle: TextStyle(fontWeight: FontWeight.bold),
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showUnselectedLabels: false,
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showSelectedLabels: true,
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items: iconsMap.keys
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.map((key) => BottomNavigationBarItem(
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title: Text(
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key,
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),
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icon: Icon(iconsMap[key]),
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backgroundColor: _colors[_position]))
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.toList(),
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);
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}
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}
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