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
增加日志输出类LogUtil，方便查看调试
增加example例子

example/lib/custom_sign_page.dart

@@ -16,7 +16,8 @@ class CustomSignPage extends StatefulWidget {
 }
 
 class _CustomSignPageState extends State<CustomSignPage> {
-  String text;
+  ValueNotifier<String> text;
+  ValueNotifier<String> selectText;
 
   CalendarController controller;
 
@@ -42,8 +43,6 @@ class _CustomSignPageState extends State<CustomSignPage> {
 
   @override
   void initState() {
-    text = "${DateTime.now().year}年${DateTime.now().month}月";
-
     controller = new CalendarController(
         weekBarItemWidgetBuilder: () {
           return CustomStyleWeekBarItem();
@@ -55,16 +54,20 @@ class _CustomSignPageState extends State<CustomSignPage> {
 
     controller.addMonthChangeListener(
       (year, month) {
-        setState(() {
-          text = "$year年$month月";
-        });
+        text.value = "$year年$month月";
       },
     );
 
     controller.addOnCalendarSelectListener((dateModel) {
       //刷新选择的时间
-      setState(() {});
+      selectText.value =
+          "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}";
     });
+
+    text = new ValueNotifier("${DateTime.now().year}年${DateTime.now().month}月");
+
+    selectText = new ValueNotifier(
+        "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}");
   }
 
   @override
@@ -84,7 +87,11 @@ class _CustomSignPageState extends State<CustomSignPage> {
                     onPressed: () {
                       controller.moveToPreviousMonth();
                     }),
-                new Text(text),
+                ValueListenableBuilder(
+                    valueListenable: text,
+                    builder: (context, value, child) {
+                      return new Text(text.value);
+                    }),
                 new IconButton(
                     icon: Icon(Icons.navigate_next),
                     onPressed: () {
@@ -95,8 +102,11 @@ class _CustomSignPageState extends State<CustomSignPage> {
             CalendarViewWidget(
               calendarController: controller,
             ),
-            new Text(
-                "自定义创建Item\n选中的时间:\n${controller.getSingleSelectCalendar().toString()}"),
+            ValueListenableBuilder(
+                valueListenable: selectText,
+                builder: (context, value, child) {
+                  return new Text(selectText.value);
+                }),
           ],
         ),
       ),

example/lib/custom_style_page.dart

@@ -1,7 +1,9 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_custom_calendar/flutter_custom_calendar.dart';
 
-
+/**
+ * 自定义风格+单选
+ */
 class CustomStylePage extends StatefulWidget {
   CustomStylePage({Key key, this.title}) : super(key: key);
 
@@ -12,14 +14,13 @@ class CustomStylePage extends StatefulWidget {
 }
 
 class _CustomStylePageState extends State<CustomStylePage> {
-  String text;
+  ValueNotifier<String> text;
+  ValueNotifier<String> selectText;
 
   CalendarController controller;
 
   @override
   void initState() {
-    text = "${DateTime.now().year}年${DateTime.now().month}月";
-
     controller = new CalendarController(weekBarItemWidgetBuilder: () {
       return CustomStyleWeekBarItem();
     }, dayWidgetBuilder: (dateModel) {
@@ -28,16 +29,20 @@ class _CustomStylePageState extends State<CustomStylePage> {
 
     controller.addMonthChangeListener(
       (year, month) {
-        setState(() {
-          text = "$year年$month月";
-        });
+        text.value = "$year年$month月";
       },
     );
 
     controller.addOnCalendarSelectListener((dateModel) {
       //刷新选择的时间
-      setState(() {});
+      selectText.value =
+          "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}";
     });
+
+    text = new ValueNotifier("${DateTime.now().year}年${DateTime.now().month}月");
+
+    selectText = new ValueNotifier(
+        "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}");
   }
 
   @override
@@ -57,7 +62,11 @@ class _CustomStylePageState extends State<CustomStylePage> {
                     onPressed: () {
                       controller.moveToPreviousMonth();
                     }),
-                new Text(text),
+                ValueListenableBuilder(
+                    valueListenable: text,
+                    builder: (context, value, child) {
+                      return new Text(text.value);
+                    }),
                 new IconButton(
                     icon: Icon(Icons.navigate_next),
                     onPressed: () {
@@ -68,8 +77,11 @@ class _CustomStylePageState extends State<CustomStylePage> {
             CalendarViewWidget(
               calendarController: controller,
             ),
-            new Text(
-                "自定义创建Item\n选中的时间:\n${controller.getSingleSelectCalendar().toString()}"),
+            ValueListenableBuilder(
+                valueListenable: selectText,
+                builder: (context, value, child) {
+                  return new Text(selectText.value);
+                }),
           ],
         ),
       ),

example/lib/default_style_page.dart

@@ -1,7 +1,11 @@
 import 'package:example/main.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_custom_calendar/flutter_custom_calendar.dart';
+import 'package:provider/provider.dart';
 
+/**
+ * 默认风格+单选
+ */
 class DefaultStylePage extends StatefulWidget {
   DefaultStylePage({Key key, this.title}) : super(key: key);
 
@@ -12,29 +16,32 @@ class DefaultStylePage extends StatefulWidget {
 }
 
 class _DefaultStylePageState extends State<DefaultStylePage> {
-  String text;
+  ValueNotifier<String> text;
+  ValueNotifier<String> selectText;
 
   CalendarController controller;
 
   @override
   void initState() {
-    text = "${DateTime.now().year}年${DateTime.now().month}月";
-
     controller = new CalendarController(
         minYear: 2019, minYearMonth: 8, maxYear: 2019, maxYearMonth: 9);
 
     controller.addMonthChangeListener(
       (year, month) {
-        setState(() {
-          text = "$year年$month月";
-        });
+        text.value = "$year年$month月";
       },
     );
 
     controller.addOnCalendarSelectListener((dateModel) {
       //刷新选择的时间
-      setState(() {});
+      selectText.value =
+          "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}";
     });
+
+    text = new ValueNotifier("${DateTime.now().year}年${DateTime.now().month}月");
+
+    selectText = new ValueNotifier(
+        "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}");
   }
 
   @override
@@ -55,7 +62,11 @@ class _DefaultStylePageState extends State<DefaultStylePage> {
 //                      controller.moveToPreviousMonth();
                       controller.previousPage();
                     }),
-                new Text(text),
+                ValueListenableBuilder(
+                    valueListenable: text,
+                    builder: (context, value, child) {
+                      return new Text(text.value);
+                    }),
                 new IconButton(
                     icon: Icon(Icons.navigate_next),
                     onPressed: () {
@@ -67,8 +78,11 @@ class _DefaultStylePageState extends State<DefaultStylePage> {
             CalendarViewWidget(
               calendarController: controller,
             ),
-            new Text(
-                "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar().toString()}"),
+            ValueListenableBuilder(
+                valueListenable: selectText,
+                builder: (context, value, child) {
+                  return new Text(selectText.value);
+                }),
           ],
         ),
       ),

example/lib/multi_select_style_page.dart

@@ -1,6 +1,9 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_custom_calendar/flutter_custom_calendar.dart';
 
+/**
+ * 自定义风格+多选
+ */
 class MultiSelectStylePage extends StatefulWidget {
   MultiSelectStylePage({Key key, this.title}) : super(key: key);
 
@@ -11,14 +14,13 @@ class MultiSelectStylePage extends StatefulWidget {
 }
 
 class _MultiSelectStylePageState extends State<MultiSelectStylePage> {
-  String text;
+  ValueNotifier<String> text;
+  ValueNotifier<String> selectText;
 
   CalendarController controller;
 
   @override
   void initState() {
-    text = "${DateTime.now().year}年${DateTime.now().month}月";
-
     controller = new CalendarController(
         selectMode: Constants.MODE_MULTI_SELECT,
         maxMultiSelectCount: 5,
@@ -34,23 +36,20 @@ class _MultiSelectStylePageState extends State<MultiSelectStylePage> {
 
     controller.addMonthChangeListener(
       (year, month) {
-        setState(() {
-          text = "$year年$month月";
-        });
+        text.value = "$year年$month月";
       },
     );
 
     controller.addOnCalendarSelectListener((dateModel) {
       //刷新选择的时间
-      setState(() {});
+      selectText.value =
+          "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}";
     });
 
-    controller.addOnMultiSelectOutOfSizeListener(() {
-      print("超出限制个数");
-    });
-    controller.addOnMultiSelectOutOfRangeListener(() {
-      print("超出范围限制");
-    });
+    text = new ValueNotifier("${DateTime.now().year}年${DateTime.now().month}月");
+
+    selectText = new ValueNotifier(
+        "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}");
   }
 
   @override
@@ -70,7 +69,11 @@ class _MultiSelectStylePageState extends State<MultiSelectStylePage> {
                     onPressed: () {
                       controller.moveToPreviousMonth();
                     }),
-                new Text(text),
+                ValueListenableBuilder(
+                    valueListenable: text,
+                    builder: (context, value, child) {
+                      return new Text(text.value);
+                    }),
                 new IconButton(
                     icon: Icon(Icons.navigate_next),
                     onPressed: () {
@@ -81,8 +84,11 @@ class _MultiSelectStylePageState extends State<MultiSelectStylePage> {
             CalendarViewWidget(
               calendarController: controller,
             ),
-//            new Text(
-//                "多选模式\n选中的时间:\n${controller.getMultiSelectCalendar().toString()}"),
+            ValueListenableBuilder(
+                valueListenable: selectText,
+                builder: (context, value, child) {
+                  return new Text(selectText.value);
+                }),
           ],
         ),
       ),

example/lib/progress_style_page.dart

@@ -2,6 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:flutter_custom_calendar/flutter_custom_calendar.dart';
 import 'dart:math';
 
+/**
+ * 进度条风格+单选
+ */
 class ProgressStylePage extends StatefulWidget {
   ProgressStylePage({Key key, this.title}) : super(key: key);
 
@@ -12,18 +15,23 @@ class ProgressStylePage extends StatefulWidget {
 }
 
 class _ProgressStylePageState extends State<ProgressStylePage> {
-  String text;
+  ValueNotifier<String> text;
+  ValueNotifier<String> selectText;
 
   CalendarController controller;
 
   @override
   void initState() {
-    text = "${DateTime.now().year}年${DateTime.now().month}月";
-
     DateTime now = DateTime.now();
     DateTime temp = DateTime(now.year, now.month, now.day);
 
     Map<DateModel, int> progressMap = {
+      DateModel.fromDateTime(temp.add(Duration(days: -1))): 0,
+      DateModel.fromDateTime(temp.add(Duration(days: -2))): 20,
+      DateModel.fromDateTime(temp.add(Duration(days: -3))): 40,
+      DateModel.fromDateTime(temp.add(Duration(days: -4))): 60,
+      DateModel.fromDateTime(temp.add(Duration(days: -5))): 80,
+      DateModel.fromDateTime(temp.add(Duration(days: -6))): 100,
       DateModel.fromDateTime(temp.add(Duration(days: 1))): 0,
       DateModel.fromDateTime(temp.add(Duration(days: 2))): 20,
       DateModel.fromDateTime(temp.add(Duration(days: 3))): 40,
@@ -43,23 +51,20 @@ class _ProgressStylePageState extends State<ProgressStylePage> {
 
     controller.addMonthChangeListener(
       (year, month) {
-        setState(() {
-          text = "$year年$month月";
-        });
+        text.value = "$year年$month月";
       },
     );
 
     controller.addOnCalendarSelectListener((dateModel) {
       //刷新选择的时间
-      setState(() {});
+      selectText.value =
+          "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}";
     });
 
-    controller.addOnMultiSelectOutOfSizeListener(() {
-      print("超出限制个数");
-    });
-    controller.addOnMultiSelectOutOfRangeListener(() {
-      print("超出范围限制");
-    });
+    text = new ValueNotifier("${DateTime.now().year}年${DateTime.now().month}月");
+
+    selectText = new ValueNotifier(
+        "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}");
   }
 
   @override
@@ -79,7 +84,11 @@ class _ProgressStylePageState extends State<ProgressStylePage> {
                     onPressed: () {
                       controller.moveToPreviousMonth();
                     }),
-                new Text(text),
+                ValueListenableBuilder(
+                    valueListenable: text,
+                    builder: (context, value, child) {
+                      return new Text(text.value);
+                    }),
                 new IconButton(
                     icon: Icon(Icons.navigate_next),
                     onPressed: () {
@@ -90,8 +99,11 @@ class _ProgressStylePageState extends State<ProgressStylePage> {
             CalendarViewWidget(
               calendarController: controller,
             ),
-//            new Text(
-//                "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar().toString()}"),
+            ValueListenableBuilder(
+                valueListenable: selectText,
+                builder: (context, value, child) {
+                  return new Text(selectText.value);
+                }),
           ],
         ),
       ),

lib/model/date_model.dart

@@ -1,3 +1,4 @@
+import 'package:flutter_custom_calendar/utils/date_util.dart';
 import 'package:flutter_custom_calendar/utils/lunar_util.dart';
 
 /**
@@ -8,20 +9,38 @@ class DateModel {
   int month;
   int day = 1;
 
-  int lunarYear;
-  int lunarMonth;
-  int lunarDay;
+  List<int> lunar = List(3);
 
-  String lunarString; //农历字符串
-  String solarTerm; //24节气
-  String gregorianFestival; //公历节日
-  String traditionFestival; //传统农历节日
+  //农历字符串
+  String get lunarString {
+    if (solarTerm.isNotEmpty) {
+      return solarTerm;
+    } else if (gregorianFestival.isNotEmpty) {
+      return gregorianFestival;
+    } else if (traditionFestival.isNotEmpty) {
+      return traditionFestival;
+    } else {
+      return LunarUtil.numToChinese(lunar[1], lunar[2], lunar[3]);
+    }
+  }
+
+  //24节气
+  String get solarTerm => LunarUtil.getSolarTerm(year, month, day);
+
+  //公历节日
+  String get gregorianFestival {
+    String result = LunarUtil.gregorianFestival(month, day);
+    if (result?.isNotEmpty == true) {
+      return result;
+    }
+    return LunarUtil.getSpecialFestival(year, month, day);
+  }
+
+//传统农历节日
+  String get traditionFestival =>
+      LunarUtil.getTraditionFestival(year, month, day);
 
-  bool isCurrentMonth;//是否是当前月份
-  bool isCurrentDay; //是否是今天
-  bool isLeapYear; //是否是闰年
-  bool isWeekend; //是否是周末
-//  int leapMonth; //是否是闰月
+  bool isCurrentMonth; //是否是当前月份
 
   Object extraData; //自定义的额外数据
 
@@ -29,6 +48,20 @@ class DateModel {
   bool isSelected; //是否被选中，用来实现一些标记或者选择功能
   bool isCanClick =
       true; //todo:是否可点击：设置范围外的日历不可点击，或者可以通过自定义拦截点击事件来设置true或者false
+  //是否是周末
+  bool get isWeekend => DateUtil.isWeekend(getDateTime());
+
+  //是否是闰年
+  bool get isLeapYear => DateUtil.isLeapYear(year);
+
+  //是否是今天
+  bool get isCurrentDay => DateUtil.isCurrentDay(year, month, day);
+
+  int get lunarYear => lunar[0];
+
+  int get lunarMonth => lunar[1];
+
+  int get lunarDay => lunar[2];
 
   @override
   String toString() {
@@ -46,7 +79,12 @@ class DateModel {
       ..year = dateTime.year
       ..month = dateTime.month
       ..day = dateTime.day;
-    LunarUtil.setupLunarCalendar(dateModel);
+    List<int> lunar =
+        LunarUtil.solarToLunar(dateModel.year, dateModel.month, dateModel.day);
+    dateModel.lunar = lunar;
+
+//    将数据的初始化放到各个get方法里面进行操作，类似懒加载,不然很浪费
+//    LunarUtil.setupLunarCalendar(dateModel);
     return dateModel;
   }
 

lib/utils/lunar_util.dart

@@ -762,44 +762,44 @@ class LunarUtil {
     int month = dateModel.month;
     int day = dateModel.day;
 
-    dateModel.isWeekend = DateUtil.isWeekend(new DateTime(year, month, day));
-    dateModel.isLeapYear = DateUtil.isLeapYear(year);
-    dateModel.isCurrentDay = DateUtil.isCurrentDay(year, month, day);
+//    dateModel.isWeekend = DateUtil.isWeekend(new DateTime(year, month, day));
+//    dateModel.isLeapYear = DateUtil.isLeapYear(year);
+//    dateModel.isCurrentDay = DateUtil.isCurrentDay(year, month, day);
 
     List<int> lunar = LunarUtil.solarToLunar(2020, 2, day);
 
-    dateModel.lunarYear = (lunar[0]);
-    dateModel.lunarMonth = (lunar[1]);
-    dateModel.lunarDay = (lunar[2]);
+//    dateModel.lunarYear = (lunar[0]);
+//    dateModel.lunarMonth = (lunar[1]);
+//    dateModel.lunarDay = (lunar[2]);
 
 //    if (lunar[3] == 1) {
 //      //如果是闰月
 //      dateModel.leapMonth = lunar[1];
 //    }
     //24节气
-    String solarTerm = getSolarTerm(year, month, day);
-    dateModel.solarTerm=solarTerm;
-    //公历节日
-    String gregorian = gregorianFestival(month, day);
-    dateModel.gregorianFestival=gregorian;
-    //传统农历节日
-    String festival = getTraditionFestival(lunar[0], lunar[1], lunar[2]);
-    dateModel.traditionFestival=festival;
+//    String solarTerm = getSolarTerm(year, month, day);
+//    dateModel.solarTerm=solarTerm;
+//    //公历节日
+//    String gregorian = gregorianFestival(month, day);
+//    dateModel.gregorianFestival=gregorian;
+//    //传统农历节日
+//    String festival = getTraditionFestival(lunar[0], lunar[1], lunar[2]);
+//    dateModel.traditionFestival=festival;
     //农历格式的日期
     String lunarText = numToChinese(lunar[1], lunar[2], lunar[3]);
 
-    if (gregorian.isEmpty) {
-      gregorian = getSpecialFestival(year, month, day);
-    }
-    if (solarTerm.isNotEmpty) {
-      dateModel.lunarString = solarTerm;
-    } else if (gregorian.isNotEmpty) {
-      dateModel.lunarString = gregorian;
-    } else if (festival.isNotEmpty) {
-      dateModel.lunarString = festival;
-    } else {
-      dateModel.lunarString = lunarText;
-    }
+//    if (gregorian.isEmpty) {
+//      gregorian = getSpecialFestival(year, month, day);
+//    }
+//    if (solarTerm.isNotEmpty) {
+//      dateModel.lunarString = solarTerm;
+//    } else if (gregorian.isNotEmpty) {
+//      dateModel.lunarString = gregorian;
+//    } else if (festival.isNotEmpty) {
+//      dateModel.lunarString = festival;
+//    } else {
+//      dateModel.lunarString = lunarText;
+//    }
   }
 
   /**

lib/widget/month_view.dart

@@ -57,6 +57,7 @@ class _MonthViewState extends State<MonthView> {
 
   @override
   Widget build(BuildContext context) {
+    LogUtil.log(TAG: this.runtimeType, message: "_MonthViewState build");
     itemHeight = MediaQuery.of(context).size.width / 7;
     totalHeight = itemHeight * lineCount + mainSpacing * (lineCount - 1);
 
@@ -68,10 +69,7 @@ class _MonthViewState extends State<MonthView> {
         builder: (context, calendarProvider, child) {
       CalendarConfiguration configuration =
           calendarProvider.calendarConfiguration;
-      LogUtil.log(
-          TAG: this.runtimeType,
-          message:
-              "build calendarProvider.selectDateModel:${calendarProvider.selectDateModel}");
+
       return new GridView.builder(
           physics: NeverScrollableScrollPhysics(),
           gridDelegate: new SliverGridDelegateWithFixedCrossAxisCount(
@@ -95,6 +93,8 @@ class _MonthViewState extends State<MonthView> {
             }
 
             return GestureDetector(
+              //点击整个item都会触发事件
+              behavior: HitTestBehavior.opaque,
               onTap: () {
                 LogUtil.log(
                     TAG: this.runtimeType,
@@ -119,16 +119,15 @@ class _MonthViewState extends State<MonthView> {
                     return;
                   }
 
-                  //多选也可以弄这些单选的代码
-                  calendarProvider.selectDateModel = dateModel;
                   configuration.calendarSelect(dateModel);
-                  setState(() {
                   if (calendarProvider.selectedDateList.contains(dateModel)) {
                     calendarProvider.selectedDateList.remove(dateModel);
                   } else {
                     calendarProvider.selectedDateList.add(dateModel);
                   }
-                  });
+
+                  //多选也可以弄这些单选的代码
+                  calendarProvider.selectDateModel = dateModel;
                 } else {
                   calendarProvider.selectDateModel = dateModel;
                   configuration.calendarSelect(dateModel);