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import 'package:flutter/material.dart';
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import 'package:flutter_custom_calendar/calendar_provider.dart';
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import 'package:flutter_custom_calendar/controller.dart';
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import 'package:flutter_custom_calendar/model/date_model.dart';
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import 'package:flutter_custom_calendar/utils/LogUtil.dart';
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import 'package:flutter_custom_calendar/widget/month_view_pager.dart';
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import 'package:flutter_custom_calendar/widget/week_view_pager.dart';
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import 'package:provider/provider.dart';
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/**
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* 暂时默认是周一开始的
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*/
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//由于旧的代码关系。。所以现在需要抽出一个StatefulWidget放在StatelessWidget里面
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class CalendarViewWidget extends StatefulWidget {
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//整体的背景设置
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BoxDecoration boxDecoration;
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//控制器
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final CalendarController calendarController;
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CalendarViewWidget(
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{Key key, @required this.calendarController, this.boxDecoration})
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: super(key: key);
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@override
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_CalendarViewWidgetState createState() => _CalendarViewWidgetState();
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}
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class _CalendarViewWidgetState extends State<CalendarViewWidget> {
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@override
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void initState() {
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//初始化一些数据，一些跟状态有关的要放到provider中
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widget.calendarController.calendarProvider.initData(
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calendarConfiguration: widget.calendarController.calendarConfiguration);
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super.initState();
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}
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@override
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Widget build(BuildContext context) {
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return ChangeNotifierProvider<CalendarProvider>.value(
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value: widget.calendarController.calendarProvider,
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child: Container(
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//外部可以自定义背景设置
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decoration: widget.boxDecoration,
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//使用const，保证外界的setState不会刷新日历这个widget
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child: const CalendarContainer()),
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);
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}
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}
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class CalendarContainer extends StatefulWidget {
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const CalendarContainer();
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@override
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CalendarContainerState createState() => CalendarContainerState();
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}
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class CalendarContainerState extends State<CalendarContainer>
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with SingleTickerProviderStateMixin {
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double itemHeight;
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double totalHeight;
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bool expand = true;
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CalendarProvider calendarProvider;
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@override
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void initState() {
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calendarProvider = Provider.of<CalendarProvider>(context, listen: false);
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expand = calendarProvider.expandStatus.value;
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//如果需要视图切换的话，才需要添加监听，不然不需要监听变化
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if (calendarProvider.calendarConfiguration.enableExpand == true) {
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calendarProvider.expandStatus.addListener(() {
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setState(() {
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expand = !expand;
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});
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});
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}
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}
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@override
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void 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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LogUtil.log(TAG: this.runtimeType, message: "CalendarContainerState build");
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//暂时先这样写死,提前计算布局的高度,不然会出现问题:a horizontal viewport was given an unlimited amount of I/flutter ( 6759): vertical space in which to expand.
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itemHeight = MediaQuery.of(context).size.width / 7;
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totalHeight = itemHeight * 6 + 10 * (6 - 1);
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return Container(
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child: new Column(
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children: <Widget>[
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/**
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* 利用const，避免每次setState都会刷新到这顶部的view
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*/
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calendarProvider.calendarConfiguration.weekBarItemWidgetBuilder(),
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AnimatedContainer(
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duration: Duration(milliseconds: 200),
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height: expand ? totalHeight : itemHeight,
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child: expand
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? Container(
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height: totalHeight,
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child: MonthViewPager(),
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)
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: Container(
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height: itemHeight,
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child: WeekViewPager(),
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),
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),
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],
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),
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);
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}
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}
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