122 lines
3.7 KiB
Dart
122 lines
3.7 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:pilipala/pages/home/index.dart';
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import 'package:pilipala/pages/hot/index.dart';
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import './controller.dart';
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class MainApp extends StatefulWidget {
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const MainApp({super.key});
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@override
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State<MainApp> createState() => _MainAppState();
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}
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class _MainAppState extends State<MainApp> with SingleTickerProviderStateMixin {
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final MainController _mainController = Get.put(MainController());
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final HomeController _homeController = Get.put(HomeController());
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final HotController _hotController = Get.put(HotController());
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late AnimationController? _animationController;
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late Animation<double>? _fadeAnimation;
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late Animation<double>? _slideAnimation;
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int selectedIndex = 2;
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int? _lastSelectTime; //上次点击时间
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@override
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void initState() {
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super.initState();
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_animationController = AnimationController(
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duration: const Duration(milliseconds: 800),
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reverseDuration: const Duration(milliseconds: 0),
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value: 1,
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vsync: this,
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);
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_fadeAnimation =
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Tween<double>(begin: 0.8, end: 1.0).animate(_animationController!);
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_slideAnimation =
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Tween(begin: 0.8, end: 1.0).animate(_animationController!);
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_lastSelectTime = DateTime.now().millisecondsSinceEpoch;
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}
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void setIndex(int value) async {
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if (selectedIndex != value) {
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selectedIndex = value;
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_animationController!.reverse().then((_) {
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selectedIndex = value;
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_animationController!.forward();
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});
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setState(() {});
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}
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var currentPage = _mainController.pages[value];
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if (currentPage is HomePage) {
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if (_homeController.flag) {
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// 单击返回顶部 双击并刷新
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if (DateTime.now().millisecondsSinceEpoch - _lastSelectTime! < 500) {
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_homeController.onRefresh();
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} else {
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await Future.delayed(const Duration(microseconds: 300));
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_homeController.animateToTop();
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}
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_lastSelectTime = DateTime.now().millisecondsSinceEpoch;
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}
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_homeController.flag = true;
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} else {
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_homeController.flag = false;
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}
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if (currentPage is HotPage) {
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if (_hotController.flag) {
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// 单击返回顶部 双击并刷新
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if (DateTime.now().millisecondsSinceEpoch - _lastSelectTime! < 500) {
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_hotController.onRefresh();
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} else {
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await Future.delayed(const Duration(microseconds: 300));
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_hotController.animateToTop();
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}
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_lastSelectTime = DateTime.now().millisecondsSinceEpoch;
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}
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_hotController.flag = true;
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} else {
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_hotController.flag = false;
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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body: FadeTransition(
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opacity: _fadeAnimation!,
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child: SlideTransition(
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position: Tween<Offset>(
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begin: const Offset(0, 0.5),
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end: Offset.zero,
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).animate(
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CurvedAnimation(
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parent: _slideAnimation!,
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curve: Curves.fastOutSlowIn,
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reverseCurve: Curves.linear,
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),
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),
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child: IndexedStack(
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index: selectedIndex,
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children: _mainController.pages,
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),
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),
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),
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bottomNavigationBar: NavigationBar(
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elevation: 1,
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destinations: _mainController.navigationBars.map((e) {
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return NavigationDestination(
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icon: e['icon'],
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selectedIcon: e['selectedIcon'],
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label: e['label'],
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);
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}).toList(),
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selectedIndex: selectedIndex,
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onDestinationSelected: (value) => setIndex(value),
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),
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);
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}
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}
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