创建configuration类，将配置的信息放到这里

引入provider状态管理,避免深层嵌套传递信息
周视图和月视图，联动

example/lib/default_style_page.dart

@@ -1,3 +1,4 @@
+import 'package:example/main.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_custom_calendar/flutter_custom_calendar.dart';
 
@@ -19,7 +20,8 @@ class _DefaultStylePageState extends State<DefaultStylePage> {
   void initState() {
     text = "${DateTime.now().year}年${DateTime.now().month}月";
 
-    controller = new CalendarController();
+    controller = new CalendarController(
+        minYear: 2019, minYearMonth: 8, maxYear: 2019, maxYearMonth: 9);
 
     controller.addMonthChangeListener(
       (year, month) {
@@ -50,13 +52,15 @@ class _DefaultStylePageState extends State<DefaultStylePage> {
                 new IconButton(
                     icon: Icon(Icons.navigate_before),
                     onPressed: () {
-                      controller.moveToPreviousMonth();
+//                      controller.moveToPreviousMonth();
+                      controller.previousPage();
                     }),
                 new Text(text),
                 new IconButton(
                     icon: Icon(Icons.navigate_next),
                     onPressed: () {
-                      controller.moveToNextMonth();
+//                      controller.moveToNextMonth();
+                      controller.nextPage();
                     }),
               ],
             ),
@@ -69,7 +73,9 @@ class _DefaultStylePageState extends State<DefaultStylePage> {
         ),
       ),
       floatingActionButton: FloatingActionButton(
-        onPressed: () {},
+        onPressed: () {
+          controller.toggleExpandStatus();
+        },
         tooltip: 'Increment',
         child: Icon(Icons.add),
       ), // This trailing comma makes auto-formatting nicer for build methods.

lib/calendar_provider.dart

@@ -10,6 +10,7 @@ import 'package:flutter_custom_calendar/model/date_model.dart';
 class CalendarProvider extends ChangeNotifier {
   Set<DateModel> selectedDateList = new Set(); //被选中的日期,用于多选
   DateModel _selectDateModel; //当前选中的日期，用于单选
+  DateModel lastClickDateModel; //保存最后点击的一个日期，用于周视图与月视图之间的切换和同步
 
   DateModel get selectDateModel => _selectDateModel;
 
@@ -19,6 +20,8 @@ class CalendarProvider extends ChangeNotifier {
     notifyListeners();
   }
 
+  ValueNotifier<bool> expandStatus = ValueNotifier(true); //当前展开状态
+
   //配置类也放这里吧，这样的话，所有子树，都可以拿到配置的信息
   CalendarConfiguration calendarConfiguration;
 
@@ -32,6 +35,10 @@ class CalendarProvider extends ChangeNotifier {
     }
     this.selectDateModel = selectDateModel;
     this.calendarConfiguration = calendarConfiguration;
+    //lastClickDateModel，默认是选中的item，如果为空的话，默认是当前的时间
+    this.lastClickDateModel = selectDateModel != null
+        ? selectDateModel
+        : DateModel.fromDateTime(DateTime.now());
   }
 
   //退出的时候，清除数据

lib/configuration.dart

@@ -10,7 +10,7 @@ class CalendarConfiguration {
   int selectMode;
 
   //展开状态
-  bool expandStatus;
+  bool defaultExpandStatus;
 
   //日历显示的最小年份和最大年份
   int minYear;
@@ -60,7 +60,6 @@ class CalendarConfiguration {
 
   CalendarConfiguration(
       {this.selectMode,
-      this.expandStatus,
       this.minYear,
       this.maxYear,
       this.minYearMonth,
@@ -79,10 +78,13 @@ class CalendarConfiguration {
       this.monthList,
       this.weekList,
       this.pageController,
-      this.weekController});
+      this.weekController,
+      bool defaultExpandStatus = true}) {
+    this.defaultExpandStatus = defaultExpandStatus;
+  }
 
   @override
   String toString() {
-    return 'CalendarConfiguration{selectMode: $selectMode, expandStatus: $expandStatus, minYear: $minYear, maxYear: $maxYear, minYearMonth: $minYearMonth, maxYearMonth: $maxYearMonth, nowYear: $nowYear, nowMonth: $nowMonth, minSelectYear: $minSelectYear, minSelectMonth: $minSelectMonth, minSelectDay: $minSelectDay, maxSelectYear: $maxSelectYear, maxSelectMonth: $maxSelectMonth, maxSelectDay: $maxSelectDay, defaultSelectedDateList: $defaultSelectedDateList, maxMultiSelectCount: $maxMultiSelectCount, extraDataMap: $extraDataMap, monthList: $monthList, weekList: $weekList, pageController: $pageController, weekController: $weekController}';
+    return 'CalendarConfiguration{selectMode: $selectMode, expandStatus: $defaultExpandStatus, minYear: $minYear, maxYear: $maxYear, minYearMonth: $minYearMonth, maxYearMonth: $maxYearMonth, nowYear: $nowYear, nowMonth: $nowMonth, minSelectYear: $minSelectYear, minSelectMonth: $minSelectMonth, minSelectDay: $minSelectDay, maxSelectYear: $maxSelectYear, maxSelectMonth: $maxSelectMonth, maxSelectDay: $maxSelectDay, defaultSelectedDateList: $defaultSelectedDateList, maxMultiSelectCount: $maxMultiSelectCount, extraDataMap: $extraDataMap, monthList: $monthList, weekList: $weekList, pageController: $pageController, weekController: $weekController}';
   }
 }

lib/controller.dart

@@ -1,5 +1,5 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_custom_calendar/CalendarProvider.dart';
+import 'package:flutter_custom_calendar/calendar_provider.dart';
 import 'package:flutter_custom_calendar/configuration.dart';
 import 'package:flutter_custom_calendar/utils/date_util.dart';
 import 'package:flutter_custom_calendar/widget/default_combine_day_view.dart';
@@ -16,6 +16,7 @@ import 'package:provider/provider.dart';
 class CalendarController {
   static const Set<DateTime> EMPTY_SET = {};
   static const Map<DateTime, Object> EMPTY_MAP = {};
+  static const Duration DEFAULT_DURATION = const Duration(milliseconds: 500);
 
   CalendarConfiguration calendarConfiguration;
 
@@ -26,11 +27,9 @@ class CalendarController {
    */
   List<DateModel> monthList = new List(); //月份list
   List<DateModel> weekList = new List(); //星期list
-  PageController pageController; //月份的controller
+  PageController monthController; //月份的controller
   PageController weekController; //星期的controller
 
-  ValueNotifier<bool> expandChanged; //扩展模式发生变化
-
   CalendarController(
       {int selectMode = Constants.MODE_SINGLE_SELECT,
       bool expandStatus = true,
@@ -52,7 +51,7 @@ class CalendarController {
       DateModel selectDateModel,
       int maxMultiSelectCount = 9999,
       Map<DateTime, Object> extraDataMap = EMPTY_MAP}) {
-    this.expandChanged = ValueNotifier(expandStatus);
+//    this.expandChanged = ValueNotifier(expandStatus);
 
     calendarConfiguration = CalendarConfiguration(
         selectMode: selectMode,
@@ -67,6 +66,7 @@ class CalendarController {
         minSelectDay: minSelectDay,
         maxSelectYear: maxSelectYear,
         maxSelectMonth: maxSelectMonth,
+        defaultExpandStatus: expandStatus,
         maxSelectDay: maxSelectDay);
 
     calendarConfiguration.dayWidgetBuilder = dayWidgetBuilder;
@@ -107,7 +107,7 @@ class CalendarController {
         nowMonthIndex++;
       }
     }
-    this.pageController = new PageController(initialPage: initialPage);
+    this.monthController = new PageController(initialPage: initialPage);
 
     //计算一共多少周
     //计算方法：第一天是周几，最后一天是周几，中间的天数/7后加上2就是结果了
@@ -125,16 +125,17 @@ class CalendarController {
         DateUtil.getMonthDaysCount(maxYear, maxYearMonth));
     print("最后一天：$lastDay");
     for (DateTime dateTime = firstWeekDate;
-        dateTime.isBefore(lastDay);
+        !dateTime.isAfter(lastDay);
         dateTime = dateTime.add(Duration(days: 7))) {
       DateModel dateModel = DateModel.fromDateTime(dateTime);
       weekList.add(dateModel);
     }
     this.weekController = new PageController();
+    print("weekList:$weekList");
 
     calendarConfiguration.monthList = monthList;
     calendarConfiguration.weekList = weekList;
-    calendarConfiguration.pageController = pageController;
+    calendarConfiguration.pageController = monthController;
     calendarConfiguration.weekController = weekController;
     calendarConfiguration.dayWidgetBuilder = dayWidgetBuilder;
     calendarConfiguration.weekBarItemWidgetBuilder = weekBarItemWidgetBuilder;
@@ -160,6 +161,74 @@ class CalendarController {
     this.calendarConfiguration.multiSelectOutOfSize = listener;
   }
 
+  //切换展开状态
+  void toggleExpandStatus() {
+    calendarProvider.expandStatus.value = !calendarProvider.expandStatus.value;
+    print("toggleExpandStatus：${calendarProvider.expandStatus.value}");
+  }
+
+  //监听展开变化
+  void addExpandChangeListener(ValueChanged<bool> expandChange) {
+    calendarProvider.expandStatus.addListener(() {
+      expandChange(calendarProvider.expandStatus.value);
+    });
+  }
+
+  /**
+   * 月份或者星期的上一页
+   */
+  Future<bool> previousPage() async {
+    if (calendarProvider.expandStatus.value == true) {
+      //月视图
+      int currentIndex = monthController.page.toInt();
+      if (currentIndex == 0) {
+        return false;
+      } else {
+        monthController.previousPage(
+            duration: DEFAULT_DURATION, curve: Curves.ease);
+        return true;
+      }
+    } else {
+      //周视图
+      int currentIndex = weekController.page.toInt();
+      if (currentIndex == 0) {
+        return false;
+      } else {
+        weekController.previousPage(
+            duration: DEFAULT_DURATION, curve: Curves.ease);
+        return true;
+      }
+    }
+  }
+
+  /**
+   * 月份或者星期的下一页
+   * true：成功
+   * false:是最后一页
+   */
+  Future<bool> nextPage() async {
+    if (calendarProvider.expandStatus.value == true) {
+      //月视图
+      int currentIndex = monthController.page.toInt();
+      if (monthList.length - 1 == currentIndex) {
+        return false;
+      } else {
+        monthController.nextPage(
+            duration: DEFAULT_DURATION, curve: Curves.ease);
+        return true;
+      }
+    } else {
+      //周视图
+      int currentIndex = weekController.page.toInt();
+      if (weekList.length - 1 == currentIndex) {
+        return false;
+      } else {
+        weekController.nextPage(duration: DEFAULT_DURATION, curve: Curves.ease);
+        return true;
+      }
+    }
+  }
+
   //跳转到指定日期
   void moveToCalendar(int year, int month, int day,
       {bool needAnimation = false,
@@ -171,11 +240,14 @@ class CalendarController {
     if (targetPage == -1) {
       return;
     }
+    if (monthController.hasClients == false) {
+      return;
+    }
     if (needAnimation) {
-      pageController.animateToPage(targetPage,
+      monthController.animateToPage(targetPage,
           duration: duration, curve: curve);
     } else {
-      pageController.jumpToPage(targetPage);
+      monthController.jumpToPage(targetPage);
     }
   }
 
@@ -185,7 +257,7 @@ class CalendarController {
       Duration duration = const Duration(milliseconds: 500),
       Curve curve = Curves.ease}) {
     DateTime targetDateTime =
-        monthList[pageController.page.toInt() + 12].getDateTime();
+        monthList[monthController.page.toInt() + 12].getDateTime();
     moveToCalendar(
         targetDateTime.year, targetDateTime.month, targetDateTime.day,
         needAnimation: needAnimation, duration: duration, curve: curve);
@@ -197,7 +269,7 @@ class CalendarController {
       Duration duration = const Duration(milliseconds: 500),
       Curve curve = Curves.ease}) {
     DateTime targetDateTime =
-        monthList[pageController.page.toInt() - 12].getDateTime();
+        monthList[monthController.page.toInt() - 12].getDateTime();
     moveToCalendar(
         targetDateTime.year, targetDateTime.month, targetDateTime.day,
         needAnimation: needAnimation, duration: duration, curve: curve);
@@ -208,8 +280,24 @@ class CalendarController {
       {bool needAnimation = false,
       Duration duration = const Duration(milliseconds: 500),
       Curve curve = Curves.ease}) {
+    //    如果当前显示的是周视图的话，需要计算出第一个月的index后，调用weekController
+    if (calendarProvider.expandStatus.value == false) {
+      int currentMonth = weekList[weekController.page.toInt()].month;
+      for (int i = weekController.page.toInt(); i < weekList.length; i++) {
+        if (weekList[i].month != currentMonth) {
+          weekController.jumpToPage(i);
+          break;
+        }
+      }
+      return;
+    }
+
+    if ((monthController.page.toInt() + 1) >= monthList.length) {
+      print("moveToNextMonth：当前是最后一个月份");
+      return;
+    }
     DateTime targetDateTime =
-        monthList[pageController.page.toInt() + 1].getDateTime();
+        monthList[monthController.page.toInt() + 1].getDateTime();
     moveToCalendar(
         targetDateTime.year, targetDateTime.month, targetDateTime.day,
         needAnimation: needAnimation, duration: duration, curve: curve);
@@ -220,8 +308,27 @@ class CalendarController {
       {bool needAnimation = false,
       Duration duration = const Duration(milliseconds: 500),
       Curve curve = Curves.ease}) {
+    //    如果当前显示的是周视图的话，需要计算出第一个月的index后，调用weekController
+    if (calendarProvider.expandStatus.value == false) {
+      int currentMonth = weekList[weekController.page.toInt()].month;
+      for (int i = weekController.page.toInt(); i >= 0; i--) {
+        if (weekList[i].month != currentMonth &&
+            weekList[i].isAfter(DateModel.fromDateTime(DateTime(
+                calendarConfiguration.minYear,
+                calendarConfiguration.minYearMonth)))) {
+          weekController.jumpToPage(i);
+          break;
+        }
+      }
+      return;
+    }
+
+    if ((monthController.page.toInt()) == 0) {
+      print("moveToPreviousMonth：当前是第一个月份");
+      return;
+    }
     DateTime targetDateTime =
-        monthList[pageController.page.toInt() - 1].getDateTime();
+        monthList[monthController.page.toInt() - 1].getDateTime();
     moveToCalendar(
         targetDateTime.year, targetDateTime.month, targetDateTime.day,
         needAnimation: needAnimation, duration: duration, curve: curve);
@@ -229,7 +336,7 @@ class CalendarController {
 
   // 获取当前的月份
   DateModel getCurrentMonth() {
-    return monthList[pageController.page.toInt()];
+    return monthList[monthController.page.toInt()];
   }
 
   //获取被选中的日期,多选
@@ -241,14 +348,6 @@ class CalendarController {
   DateModel getSingleSelectCalendar() {
     return calendarProvider.selectDateModel;
   }
-
-  //切换展开状态
-  void toggleExpandStatus() {
-    expandChanged.value = !expandChanged.value;
-    print("toggleExpandStatus：${expandChanged.value}");
-  }
-
-  void addExpandChangeListener() {}
 }
 
 /**

lib/model/date_model.dart

@@ -68,7 +68,13 @@ class DateModel {
         day == dateModel.day;
   }
 
+  //是否在某天之后
+  bool isAfter(DateModel dateModel) {
+    return this.getDateTime().isAfter(dateModel.getDateTime());
+  }
 
-
+  //是否在某天之前
-
+  bool isBefore(DateModel dateModel) {
+    return this.getDateTime().isBefore(dateModel.getDateTime());
+  }
 }

lib/utils/date_util.dart

@@ -191,6 +191,7 @@ class DateUtil {
       {DateModel minSelectDate,
       DateModel maxSelectDate,
       Map<DateTime, Object> extraDataMap}) {
+    print("initCalendarForWeekView");
     List<DateModel> items = List();
 
     int weekDay = currentDate.weekday;
@@ -201,11 +202,24 @@ class DateUtil {
     for (int i = 1; i <= 7; i++) {
       DateModel dateModel =
           DateModel.fromDateTime(firstDayOfWeek.add(Duration(days: i)));
-      items.add(dateModel);
-    }
 
-    print("items.toString():${items.toString()}");
+      //判断是否在范围内
+      if (dateModel.getDateTime().isAfter(minSelectDate.getDateTime()) &&
+          dateModel.getDateTime().isBefore(maxSelectDate.getDateTime())) {
+        dateModel.isInRange = true;
+      } else {
+        dateModel.isInRange = false;
+      }
+      //将自定义额外的数据，存储到相应的model中
+      if (extraDataMap != null && extraDataMap.isNotEmpty) {
+        DateTime dateTime = dateModel.getDateTime();
+        if (extraDataMap.containsKey(dateTime)) {
+          dateModel.extraData = extraDataMap[dateTime];
+        }
+      }
 
+      items.add(dateModel);
+    }
     return items;
   }
 }

lib/widget/calendar_view.dart

@@ -1,8 +1,5 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
+import 'package:flutter_custom_calendar/calendar_provider.dart';
-import 'package:flutter_custom_calendar/CalendarProvider.dart';
-import 'package:flutter_custom_calendar/configuration.dart';
-import 'package:flutter_custom_calendar/constants/constants.dart';
 import 'package:flutter_custom_calendar/controller.dart';
 import 'package:flutter_custom_calendar/model/date_model.dart';
 import 'package:flutter_custom_calendar/widget/month_view_pager.dart';
@@ -19,7 +16,7 @@ class CalendarViewWidget extends StatefulWidget {
   BoxDecoration boxDecoration;
 
   //控制器
-  CalendarController calendarController;
+  final CalendarController calendarController;
 
   CalendarViewWidget(
       {Key key, @required this.calendarController, this.boxDecoration})
@@ -32,8 +29,10 @@ class CalendarViewWidget extends StatefulWidget {
 class _CalendarViewWidgetState extends State<CalendarViewWidget> {
   @override
   void initState() {
+    //初始化一些数据，一些跟状态有关的要放到provider中
     widget.calendarController.calendarProvider.initData(
         calendarConfiguration: widget.calendarController.calendarConfiguration);
+
     super.initState();
   }
 
@@ -44,6 +43,7 @@ class _CalendarViewWidgetState extends State<CalendarViewWidget> {
       child: Container(
           //外部可以自定义背景设置
           decoration: widget.boxDecoration,
+          //使用const，保证外界的setState不会刷新日历这个widget
           child: const CalendarContainer()),
     );
   }
@@ -63,15 +63,17 @@ class CalendarContainerState extends State<CalendarContainer>
 
   bool expand = true;
 
+  CalendarProvider calendarProvider;
+
   @override
   void initState() {
-//    widget.calendarController.expandChanged.addListener(() {
+    calendarProvider = Provider.of<CalendarProvider>(context, listen: false);
-//      print("_CalendarViewWidgetState:$expand");
+    expand = calendarProvider.expandStatus.value;
-//      setState(() {
+    calendarProvider.expandStatus.addListener(() {
-//        expand = !expand;
+      setState(() {
-//      });
+        expand = !expand;
-//    });
+      });
-//
+    });
   }
 
   @override
@@ -91,84 +93,19 @@ class CalendarContainerState extends State<CalendarContainer>
           /**
            * 利用const，避免每次setState都会刷新到这顶部的view
            */
-//          widget.calendarController.weekBarItemWidgetBuilder(),
+          calendarProvider.calendarConfiguration.weekBarItemWidgetBuilder(),
           AnimatedContainer(
-              duration: Duration(milliseconds: 500),
+            duration: Duration(milliseconds: 200),
             height: expand ? totalHeight : itemHeight,
-              child:
+            child: expand
-//              expand ?
+                ? Container(
-                  Container(
                     height: totalHeight,
-                child: MonthViewPager(
+                    child: MonthViewPager(),
-//                        selectMode: widget.calendarController.selectMode,
-//                        monthChange: (int year, int month) {
-//                          widget.calendarController.monthChange(year, month);
-//                        },
-//                        calendarSelect: (dateModel) {
-//                          widget.calendarController.selectDateModel = dateModel;
-//                          widget.calendarController.calendarSelect(dateModel);
-//                        },
-//                        monthList: widget.calendarController.monthList,
-//                        pageController: widget.calendarController.pageController,
-//                        selectedDateList:
-//                            widget.calendarController.selectedDateList,
-//                        selectDateModel:
-//                            widget.calendarController.selectDateModel,
-//                        dayWidgetBuilder:
-//                            widget.calendarController.dayWidgetBuilder,
-//                        minSelectDate: DateModel()
-//                          ..year = widget.calendarController.minSelectYear
-//                          ..month = widget.calendarController.minSelectMonth
-//                          ..day = widget.calendarController.minSelectDay,
-//                        maxSelectDate: DateModel()
-//                          ..year = widget.calendarController.maxSelectYear
-//                          ..month = widget.calendarController.maxSelectMonth
-//                          ..day = widget.calendarController.maxSelectDay,
-//                        maxMultiSelectCount:
-//                            widget.calendarController.maxMultiSelectCount,
-//                  multiSelectOutOfRange:
-//                      widget.calendarController.multiSelectOutOfRange,
-//                  multiSelectOutOfSize:
-//                      widget.calendarController.multiSelectOutOfSize,
-//                        extraDataMap: widget.calendarController.extraDataMap,
-                    ),
                   )
-//                  : Container(
+                : Container(
-//                      height: itemHeight,
+                    height: itemHeight,
-//                      child: WeekViewPager(
+                    child: WeekViewPager(),
-//                        selectMode: widget.calendarController.selectMode,
+                  ),
-//                        monthChange: (int year, int month) {
-//                          widget.calendarController.monthChange(year, month);
-//                        },
-//                        calendarSelect: (dateModel) {
-//                          widget.calendarController.selectDateModel = dateModel;
-//                          widget.calendarController.calendarSelect(dateModel);
-//                        },
-//                        weekList: widget.calendarController.weekList,
-//                        pageController: widget.calendarController.pageController,
-//                        selectedDateList:
-//                            widget.calendarController.selectedDateList,
-//                        selectDateModel:
-//                            widget.calendarController.selectDateModel,
-//                        dayWidgetBuilder:
-//                            widget.calendarController.dayWidgetBuilder,
-//                        minSelectDate: DateModel()
-//                          ..year = widget.calendarController.minSelectYear
-//                          ..month = widget.calendarController.minSelectMonth
-//                          ..day = widget.calendarController.minSelectDay,
-//                        maxSelectDate: DateModel()
-//                          ..year = widget.calendarController.maxSelectYear
-//                          ..month = widget.calendarController.maxSelectMonth
-//                          ..day = widget.calendarController.maxSelectDay,
-//                        maxMultiSelectCount:
-//                            widget.calendarController.maxMultiSelectCount,
-//                        multiSelectOutOfRange:
-//                            widget.calendarController.multiSelectOutOfRange,
-//                        multiSelectOutOfSize:
-//                            widget.calendarController.multiSelectOutOfSize,
-//                        extraDataMap: widget.calendarController.extraDataMap,
-//                      ),
-//                    ),
           ),
         ],
       ),

lib/widget/fast_click_widget.dart

@@ -0,0 +1,32 @@
+import 'package:flutter/material.dart';
+
+/**
+ * 防止快速点击
+ */
+class FastClickWidget extends StatelessWidget {
+  final int between_time = 500; //默认两次点击间隔500ms内则点击无效
+
+  Function onTap;
+  Widget child;
+
+  FastClickWidget({@required this.onTap, @required this.child});
+
+  int lastClickTime = 0;
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: () {
+        if (lastClickTime == 0 ||
+            DateTime.now().millisecondsSinceEpoch - lastClickTime >
+                between_time) {
+          onTap();
+          lastClickTime = DateTime.now().millisecondsSinceEpoch;
+        } else {
+          //间隔500ms内点击无效
+        }
+      },
+      child: child,
+    );
+  }
+}

lib/widget/month_view.dart

@@ -1,5 +1,5 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_custom_calendar/CalendarProvider.dart';
+import 'package:flutter_custom_calendar/calendar_provider.dart';
 import 'package:flutter_custom_calendar/configuration.dart';
 import 'package:flutter_custom_calendar/constants/constants.dart';
 import 'package:flutter_custom_calendar/model/date_model.dart';
@@ -10,32 +10,22 @@ import 'package:provider/provider.dart';
  * 月视图，显示整个月的日子
  */
 class MonthView extends StatefulWidget {
-//  OnCalendarSelect onCalendarSelectListener;
+  final int year;
+  final int month;
+  final int day;
 
-//  Set<DateModel> selectedDateList; //被选中的日期
+  final DateModel minSelectDate;
-//
+  final DateModel maxSelectDate;
-//  DateModel selectDateModel; //当前选择项,用于单选
-//
-//  DayWidgetBuilder dayWidgetBuilder;
-//
-//  OnMultiSelectOutOfRange multiSelectOutOfRange; //多选超出指定范围
-//  OnMultiSelectOutOfSize multiSelectOutOfSize; //多选超出限制个数
 
-  int year;
+  final Map<DateTime, Object> extraDataMap; //自定义额外的数据
-  int month;
-  int day;
 
-  DateModel minSelectDate;
+  const MonthView({
-  DateModel maxSelectDate;
-
-  Map<DateTime, Object> extraDataMap; //自定义额外的数据
-
-  MonthView({
     @required this.year,
     @required this.month,
     this.day,
     this.minSelectDate,
     this.maxSelectDate,
+    this.extraDataMap,
   });
 
   @override
@@ -82,7 +72,7 @@ class _MonthViewState extends State<MonthView> {
       CalendarConfiguration configuration =
           calendarProvider.calendarConfiguration;
       print(
-          "Consumer:calendarProvider.selectDateModel:${calendarProvider.selectDateModel}");
+          "MonthView Consumer:calendarProvider.selectDateModel:${calendarProvider.selectDateModel}");
       return new GridView.builder(
           physics: NeverScrollableScrollPhysics(),
           gridDelegate: new SliverGridDelegateWithFixedCrossAxisCount(
@@ -108,6 +98,8 @@ class _MonthViewState extends State<MonthView> {
             return GestureDetector(
               onTap: () {
                 print("GestureDetector onTap：$dateModel");
+                print("!dateModel.isInRange:${!dateModel.isInRange}");
+
                 //范围外不可点击
                 if (!dateModel.isInRange) {
                   //多选回调
@@ -117,6 +109,8 @@ class _MonthViewState extends State<MonthView> {
                   return;
                 }
 
+                calendarProvider.lastClickDateModel = dateModel;
+
                 if (configuration.selectMode == Constants.MODE_MULTI_SELECT) {
                   //多选，判断是否超过限制，超过范围
                   if (calendarProvider.selectedDateList.length ==

lib/widget/month_view_pager.dart

@@ -1,7 +1,8 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_custom_calendar/CalendarProvider.dart';
+import 'package:flutter_custom_calendar/calendar_provider.dart';
 import 'package:flutter_custom_calendar/configuration.dart';
 import 'package:flutter_custom_calendar/model/date_model.dart';
+import 'package:flutter_custom_calendar/utils/date_util.dart';
 import 'package:flutter_custom_calendar/widget/month_view.dart';
 import 'package:provider/provider.dart';
 
@@ -13,14 +14,50 @@ class MonthViewPager extends StatefulWidget {
 }
 
 class _MonthViewPagerState extends State<MonthViewPager> {
+  CalendarProvider calendarProvider;
+
   @override
-  void initState() {}
+  void initState() {
+    calendarProvider = Provider.of<CalendarProvider>(context, listen: false);
+
+    //计算当前月视图的index
+    DateModel dateModel = calendarProvider.lastClickDateModel;
+    List<DateModel> monthList =
+        calendarProvider.calendarConfiguration.monthList;
+    int index = 0;
+    for (int i = 0; i < monthList.length; i++) {
+      DateModel firstDayOfMonth = monthList[i];
+      DateModel lastDayOfMonth = DateModel.fromDateTime(firstDayOfMonth
+          .getDateTime()
+          .add(Duration(
+              days: DateUtil.getMonthDaysCount(
+                  firstDayOfMonth.year, firstDayOfMonth.month))));
+//      print("firstDayOfMonth:$firstDayOfMonth");
+//      print("lastDayOfMonth:$lastDayOfMonth");
+
+      if ((dateModel.isAfter(firstDayOfMonth) ||
+              dateModel.isSameWith(firstDayOfMonth)) &&
+          dateModel.isBefore(lastDayOfMonth)) {
+        index = i;
+        break;
+      }
+    }
+//    print("monthList:$monthList");
+//    print("当前月:index:$index");
+    WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
+      calendarProvider.calendarConfiguration.pageController.jumpToPage(index);
+    });
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+  }
 
   @override
   Widget build(BuildContext context) {
 //    获取到当前的CalendarProvider对象,设置listen为false，不需要刷新
-    CalendarProvider calendarProvider =
+    calendarProvider = Provider.of<CalendarProvider>(context, listen: false);
-        Provider.of<CalendarProvider>(context, listen: false);
     CalendarConfiguration configuration =
         calendarProvider.calendarConfiguration;
 
@@ -35,13 +72,8 @@ class _MonthViewPagerState extends State<MonthViewPager> {
         itemBuilder: (context, index) {
           DateModel dateModel = configuration.monthList[index];
           return new MonthView(
-//            selectMode: configuration.selectMode,
             year: dateModel.year,
             month: dateModel.month,
-//            selectDateModel: calendarProvider.selectDateModel,
-//            selectedDateList: calendarProvider.selectedDateList,
-//            onCalendarSelectListener: configuration.calendarSelect,
-//            dayWidgetBuilder: configuration.dayWidgetBuilder,
             minSelectDate: DateModel.fromDateTime(DateTime(
                 configuration.minSelectYear,
                 configuration.minSelectMonth,
@@ -50,10 +82,7 @@ class _MonthViewPagerState extends State<MonthViewPager> {
                 configuration.maxSelectYear,
                 configuration.maxSelectMonth,
                 configuration.maxSelectDay)),
-//            maxMultiSelectCount: configuration.maxMultiSelectCount,
+            extraDataMap: configuration.extraDataMap,
-//            multiSelectOutOfRange: configuration.multiSelectOutOfRange,
-//            multiSelectOutOfSize: configuration.multiSelectOutOfSize,
-//            extraDataMap: configuration.extraDataMap,
           );
         },
         itemCount: configuration.monthList.length,

lib/widget/week_view.dart

@@ -1,50 +1,31 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_custom_calendar/calendar_provider.dart';
+import 'package:flutter_custom_calendar/configuration.dart';
 import 'package:flutter_custom_calendar/constants/constants.dart';
 import 'package:flutter_custom_calendar/controller.dart';
 import 'package:flutter_custom_calendar/model/date_model.dart';
 import 'package:flutter_custom_calendar/utils/date_util.dart';
+import 'package:provider/provider.dart';
 
 /**
  * 周视图，只显示本周的日子
  */
 class WeekView extends StatefulWidget {
-  OnCalendarSelect onCalendarSelectListener;
+ final int year;
+ final  int month;
+ final  DateModel firstDayOfWeek;
 
-  Set<DateModel> selectedDateList; //被选中的日期
+ final  DateModel minSelectDate;
+ final  DateModel maxSelectDate;
 
-  DateModel selectDateModel; //当前选择项,用于单选
+ final  Map<DateTime, Object> extraDataMap; //自定义额外的数据
 
-  DayWidgetBuilder dayWidgetBuilder;
+  const WeekView(
-
-  OnMultiSelectOutOfRange multiSelectOutOfRange; //多选超出指定范围
-  OnMultiSelectOutOfSize multiSelectOutOfSize; //多选超出限制个数
-
-  int year;
-  int month;
-  int day;
-
-  DateModel minSelectDate;
-  DateModel maxSelectDate;
-
-  int selectMode;
-  int maxMultiSelectCount;
-
-  Map<DateTime, Object> extraDataMap; //自定义额外的数据
-
-  WeekView(
       {@required this.year,
       @required this.month,
-      this.day,
+      this.firstDayOfWeek,
-      this.onCalendarSelectListener,
-      this.dayWidgetBuilder,
-      this.selectedDateList,
-      this.selectDateModel,
       this.minSelectDate,
       this.maxSelectDate,
-      this.selectMode,
-      this.multiSelectOutOfSize,
-      this.multiSelectOutOfRange,
-      this.maxMultiSelectCount,
       this.extraDataMap});
 
   @override
@@ -53,19 +34,25 @@ class WeekView extends StatefulWidget {
 
 class _WeekViewState extends State<WeekView> {
   List<DateModel> items;
-  DateModel selectDateModel; //当前选择项,用于单选
 
   @override
   void initState() {
     super.initState();
-    items=DateUtil.initCalendarForWeekView(2019, 9, DateTime.now(), 0);
+    items = DateUtil.initCalendarForWeekView(
-
+        2019, 9, widget.firstDayOfWeek.getDateTime(), 0,
+        minSelectDate: widget.minSelectDate,
+        maxSelectDate: widget.maxSelectDate,
+        extraDataMap: widget.extraDataMap);
   }
 
   @override
   Widget build(BuildContext context) {
-
+    return Consumer<CalendarProvider>(
-
+        builder: (context, calendarProvider, child) {
+      CalendarConfiguration configuration =
+          calendarProvider.calendarConfiguration;
+      print(
+          "WeekView Consumer:calendarProvider.selectDateModel:${calendarProvider.selectDateModel}");
       return new GridView.builder(
           physics: NeverScrollableScrollPhysics(),
           gridDelegate: new SliverGridDelegateWithFixedCrossAxisCount(
@@ -74,14 +61,14 @@ class _WeekViewState extends State<WeekView> {
           itemBuilder: (context, index) {
             DateModel dateModel = items[index];
             //判断是否被选择
-          if (widget.selectMode == Constants.MODE_MULTI_SELECT) {
+            if (configuration.selectMode == Constants.MODE_MULTI_SELECT) {
-            if (widget.selectedDateList.contains(dateModel)) {
+              if (calendarProvider.selectedDateList.contains(dateModel)) {
                 dateModel.isSelected = true;
               } else {
                 dateModel.isSelected = false;
               }
             } else {
-            if (selectDateModel == dateModel) {
+              if (calendarProvider.selectDateModel == dateModel) {
                 dateModel.isSelected = true;
               } else {
                 dateModel.isSelected = false;
@@ -91,42 +78,44 @@ class _WeekViewState extends State<WeekView> {
             return GestureDetector(
               onTap: () {
                 //范围外不可点击
+                print("GestureDetector onTap：$dateModel");
+                print("!dateModel.isInRange:${!dateModel.isInRange}");
                 if (!dateModel.isInRange) {
                   //多选回调
-                if (widget.selectMode == Constants.MODE_MULTI_SELECT) {
+                  if (configuration.selectMode == Constants.MODE_MULTI_SELECT) {
-                  widget.multiSelectOutOfRange();
+                    configuration.multiSelectOutOfRange();
                   }
                   return;
                 }
+                calendarProvider.lastClickDateModel = dateModel;
 
-              if (widget.selectMode == Constants.MODE_MULTI_SELECT) {
+                if (configuration.selectMode == Constants.MODE_MULTI_SELECT) {
                   //多选，判断是否超过限制，超过范围
-                if (widget.selectedDateList.length ==
+                  if (calendarProvider.selectedDateList.length ==
-                    widget.maxMultiSelectCount) {
+                      configuration.maxMultiSelectCount) {
-                  widget.multiSelectOutOfSize();
+                    configuration.multiSelectOutOfSize();
                     return;
                   }
 
                   //多选也可以弄这些单选的代码
-                selectDateModel = dateModel;
+                  calendarProvider.selectDateModel = dateModel;
-                widget.selectDateModel = dateModel;
+                  configuration.calendarSelect(dateModel);
-                widget.onCalendarSelectListener(dateModel);
+//                  setState(() {
-                setState(() {
+                    if (calendarProvider.selectedDateList.contains(dateModel)) {
-                  if (widget.selectedDateList.contains(dateModel)) {
+                      calendarProvider.selectedDateList.remove(dateModel);
-                    widget.selectedDateList.remove(dateModel);
                     } else {
-                    widget.selectedDateList.add(dateModel);
+                      calendarProvider.selectedDateList.add(dateModel);
                     }
-                });
+//                  });
                 } else {
-                selectDateModel = dateModel;
+                  calendarProvider.selectDateModel = dateModel;
-                widget.selectDateModel = dateModel;
+                  configuration.calendarSelect(dateModel);
-                widget.onCalendarSelectListener(dateModel);
+//                  setState(() {});
-                setState(() {});
                 }
               },
-            child: widget.dayWidgetBuilder(dateModel),
+              child: configuration.dayWidgetBuilder(dateModel),
             );
           });
+    });
   }
 }

lib/widget/week_view_pager.dart

@@ -1,88 +1,99 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_custom_calendar/calendar_provider.dart';
+import 'package:flutter_custom_calendar/configuration.dart';
 import 'package:flutter_custom_calendar/controller.dart';
 import 'package:flutter_custom_calendar/model/date_model.dart';
 import 'package:flutter_custom_calendar/widget/week_view.dart';
+import 'package:provider/provider.dart';
 
 class WeekViewPager extends StatefulWidget {
-  final OnMonthChange monthChange;
+  WeekViewPager();
 
-  final OnCalendarSelect calendarSelect;
+  @override
-  final DayWidgetBuilder dayWidgetBuilder;
+  _WeekViewPagerState createState() => _WeekViewPagerState();
-  OnMultiSelectOutOfRange multiSelectOutOfRange; //多选超出指定范围
+}
-  OnMultiSelectOutOfSize multiSelectOutOfSize; //多选超出限制个数
-
-  Set<DateModel> selectedDateList; //被选中的日期,用于多选
-  DateModel selectDateModel; //当前选择项,用于单选
 
-  final List<DateModel> weekList;
+class _WeekViewPagerState extends State<WeekViewPager> {
-  PageController pageController;
+  int lastMonth; //保存上一个月份，不然不知道月份发生了变化
+  CalendarProvider calendarProvider;
 
-  DateModel minSelectDate;
+  @override
-  DateModel maxSelectDate;
+  void initState() {
+    print("WeekViewPager initState");
 
-  int selectMode;
+    calendarProvider = Provider.of<CalendarProvider>(context, listen: false);
-  int maxMultiSelectCount;
 
-  Map<DateTime, Object> extraDataMap; //自定义额外的数据
+    lastMonth = calendarProvider.lastClickDateModel.month;
+    //计算当前周视图的index
+    DateModel dateModel = calendarProvider.lastClickDateModel;
+    List<DateModel> weekList = calendarProvider.calendarConfiguration.weekList;
+    int index = 0;
 
-  WeekViewPager(
+    for (int i = 0; i < weekList.length; i++) {
-      {this.monthChange,
+      DateModel firstDayOfWeek = weekList[i];
-      this.calendarSelect,
+      DateModel lastDayOfWeek = DateModel.fromDateTime(
-      this.weekList,
+          firstDayOfWeek.getDateTime().add(Duration(days: 7)));
-      this.pageController,
-      this.selectedDateList,
-      this.selectDateModel,
-      this.dayWidgetBuilder,
-      this.minSelectDate,
-      this.maxSelectDate,
-      this.selectMode,
-      this.maxMultiSelectCount,
-      this.multiSelectOutOfRange,
-      this.multiSelectOutOfSize,
-      this.extraDataMap});
 
-  @override
+      if ((dateModel.isSameWith(weekList[i]) ||
-  _WeekViewPagerState createState() => _WeekViewPagerState();
+              dateModel.isAfter(weekList[i])) &&
+          dateModel.isBefore(lastDayOfWeek)) {
+        index = i;
+        break;
+      }
+    }
+//    print("weekList:$weekList");
+//    print("当前周:index:$index");
+    WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
+      calendarProvider.calendarConfiguration.weekController.jumpToPage(index);
+    });
   }
-
-class _WeekViewPagerState extends State<WeekViewPager> {
-
-  int lastMonth;//上一个月份
 
   @override
-  void initState() {
+  void dispose() {
-//      lastMonth=
+    print("WeekViewPager dispose");
+    super.dispose();
   }
 
   @override
   Widget build(BuildContext context) {
+    //    获取到当前的CalendarProvider对象,设置listen为false，不需要刷新
+    CalendarProvider calendarProvider =
+        Provider.of<CalendarProvider>(context, listen: false);
+    CalendarConfiguration configuration =
+        calendarProvider.calendarConfiguration;
+
     return Container(
       child: PageView.builder(
         onPageChanged: (position) {
-          //月份的变化
+//          周视图的变化
-          DateModel dateModel = widget.weekList[position];
+          DateModel firstDayOfWeek = configuration.weekList[position];
-          widget.monthChange(dateModel.year, dateModel.month);
+          int currentMonth = firstDayOfWeek.month;
+          if (lastMonth != currentMonth) {
+            configuration.monthChange(
+                firstDayOfWeek.year, firstDayOfWeek.month);
+          }
+//          DateModel dateModel = configuration.weekList[position];
+//          configuration.monthChange(dateModel.year, dateModel.month);
         },
-        controller: widget.pageController,
+        controller: configuration.weekController,
         itemBuilder: (context, index) {
-          DateModel dateModel = widget.weekList[index];
+          DateModel dateModel = configuration.weekList[index];
           return new WeekView(
-            selectMode: widget.selectMode,
             year: dateModel.year,
             month: dateModel.month,
-            selectDateModel: widget.selectDateModel,
+            firstDayOfWeek: dateModel,
-            selectedDateList: widget.selectedDateList,
+            minSelectDate: DateModel.fromDateTime(DateTime(
-            onCalendarSelectListener: widget.calendarSelect,
+                configuration.minSelectYear,
-            dayWidgetBuilder: widget.dayWidgetBuilder,
+                configuration.minSelectMonth,
-            minSelectDate: widget.minSelectDate,
+                configuration.minSelectDay)),
-            maxSelectDate: widget.maxSelectDate,
+            maxSelectDate: DateModel.fromDateTime(DateTime(
-            maxMultiSelectCount: widget.maxMultiSelectCount,
+                configuration.maxSelectYear,
-            multiSelectOutOfRange: widget.multiSelectOutOfRange,
+                configuration.maxSelectMonth,
-            multiSelectOutOfSize: widget.multiSelectOutOfSize,
+                configuration.maxSelectDay)),
-            extraDataMap: widget.extraDataMap,
+            extraDataMap: configuration.extraDataMap,
           );
         },
-        itemCount: widget.weekList.length,
+        itemCount: configuration.weekList.length,
       ),
     );
   }

pubspec.yaml

@@ -10,7 +10,7 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-
+  provider: 3.0.0+1
 dev_dependencies:
   flutter_test:
     sdk: flutter