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

lib/calendar_provider.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_custom_calendar/configuration.dart';
 import 'package:flutter_custom_calendar/model/date_model.dart';
+import 'package:flutter_custom_calendar/utils/LogUtil.dart';
 
 /**
  * 引入provider的状态管理，保存一些临时信息
@@ -16,7 +17,9 @@ class CalendarProvider extends ChangeNotifier {
 
   set selectDateModel(DateModel value) {
     _selectDateModel = value;
-    print("notifyListeners:$value");
+    LogUtil.log(
+        TAG: this.runtimeType,
+        message: "selectDateModel change:${selectDateModel}");
     notifyListeners();
   }
 
@@ -29,7 +32,7 @@ class CalendarProvider extends ChangeNotifier {
       {Set<DateModel> selectedDateList,
       DateModel selectDateModel,
       CalendarConfiguration calendarConfiguration}) {
-    print("CalendarProvider init");
+    LogUtil.log(TAG: this.runtimeType, message: "CalendarProvider initData");
     if (selectedDateList != null) {
       this.selectedDateList.addAll(selectedDateList);
     }
@@ -43,7 +46,7 @@ class CalendarProvider extends ChangeNotifier {
 
   //退出的时候，清除数据
   void clearData() {
-    print("CalendarProvider clearData");
+    LogUtil.log(TAG: this.runtimeType, message: "CalendarProvider clearData");
     selectedDateList.clear();
     selectDateModel = null;
   }

lib/configuration.dart

@@ -38,7 +38,17 @@ class CalendarConfiguration {
   Map<DateTime, Object> extraDataMap = new Map(); //自定义额外的数据
 
   /**
-   * UI绘制相关的配置
+   * UI绘制方面的绘制
+   */
+  double verticalSpacing ;//日历item之间的竖直方向间距，默认10
+
+
+  //支持自定义绘制
+  DayWidgetBuilder dayWidgetBuilder; //创建日历item
+  WeekBarItemWidgetBuilder weekBarItemWidgetBuilder; //创建顶部的weekbar
+
+  /**
+   * 监听变化
    */
   //各种事件回调
   OnMonthChange monthChange; //月份切换事件
@@ -46,10 +56,6 @@ class CalendarConfiguration {
   OnMultiSelectOutOfRange multiSelectOutOfRange; //多选超出指定范围
   OnMultiSelectOutOfSize multiSelectOutOfSize; //多选超出限制个数
 
-  //支持自定义绘制
-  DayWidgetBuilder dayWidgetBuilder; //创建日历item
-  WeekBarItemWidgetBuilder weekBarItemWidgetBuilder; //创建顶部的weekbar
-
   /**
    * 下面的信息不是配置的，是根据配置信息进行计算出来的
    */
@@ -79,6 +85,7 @@ class CalendarConfiguration {
       this.weekList,
       this.pageController,
       this.weekController,
+        this.verticalSpacing,
       bool defaultExpandStatus = true}) {
     this.defaultExpandStatus = defaultExpandStatus;
   }

lib/controller.dart

@@ -1,6 +1,9 @@
+import 'dart:developer';
+
 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/utils/LogUtil.dart';
 import 'package:flutter_custom_calendar/utils/date_util.dart';
 import 'package:flutter_custom_calendar/widget/default_combine_day_view.dart';
 import 'package:flutter_custom_calendar/widget/default_custom_day_view.dart';
@@ -50,9 +53,9 @@ class CalendarController {
       Set<DateTime> selectedDateTimeList = EMPTY_SET,
       DateModel selectDateModel,
       int maxMultiSelectCount = 9999,
+      double verticalSpacing = 10,
       Map<DateTime, Object> extraDataMap = EMPTY_MAP}) {
-//    this.expandChanged = ValueNotifier(expandStatus);
-
+    LogUtil.log(TAG: this.runtimeType, message: "init CalendarConfiguration");
     calendarConfiguration = CalendarConfiguration(
         selectMode: selectMode,
         minYear: minYear,
@@ -67,7 +70,8 @@ class CalendarController {
         maxSelectYear: maxSelectYear,
         maxSelectMonth: maxSelectMonth,
         defaultExpandStatus: expandStatus,
-        maxSelectDay: maxSelectDay);
+        maxSelectDay: maxSelectDay,
+        verticalSpacing: verticalSpacing);
 
     calendarConfiguration.dayWidgetBuilder = dayWidgetBuilder;
     calendarConfiguration.weekBarItemWidgetBuilder = weekBarItemWidgetBuilder;
@@ -108,22 +112,33 @@ class CalendarController {
       }
     }
     this.monthController = new PageController(initialPage: initialPage);
+    LogUtil.log(
+        TAG: this.runtimeType,
+        message: "start:${DateModel.fromDateTime(DateTime(
+          minYear,
+          minYearMonth,
+        ))},end:${DateModel.fromDateTime(DateTime(
+          maxYear,
+          maxYearMonth,
+        ))}");
+    LogUtil.log(
+        TAG: this.runtimeType,
+        message:
+            "初始化月份视图的信息:一共有${monthList.length}个月，initialPage为${nowMonthIndex}");
 
     //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
-    int initialWeekPage;
+    int initialWeekPage = 0;
     int nowWeekIndex = 0;
     weekList.clear();
-    int sumDays = 0; //总天数
 
     DateTime firstDayOfMonth = DateTime(minYear, minYearMonth, 1);
     //计算第一个星期的第一天的日期
     DateTime firstWeekDate =
         firstDayOfMonth.add(Duration(days: -(firstDayOfMonth.weekday - 1)));
-    print("第一个星期的第一天的日期firstWeekDate:$firstWeekDate");
+
     DateTime lastDay = DateTime(maxYear, maxYearMonth,
         DateUtil.getMonthDaysCount(maxYear, maxYearMonth));
-    print("最后一天：$lastDay");
     for (DateTime dateTime = firstWeekDate;
         !dateTime.isAfter(lastDay);
         dateTime = dateTime.add(Duration(days: 7))) {
@@ -131,7 +146,10 @@ class CalendarController {
       weekList.add(dateModel);
     }
     this.weekController = new PageController();
-    print("weekList:$weekList");
+    LogUtil.log(
+        TAG: this.runtimeType,
+        message:
+            "初始化星期视图的信息:一共有${weekList.length}个星期，initialPage为${initialWeekPage}");
 
     calendarConfiguration.monthList = monthList;
     calendarConfiguration.weekList = weekList;
@@ -164,7 +182,9 @@ class CalendarController {
   //切换展开状态
   void toggleExpandStatus() {
     calendarProvider.expandStatus.value = !calendarProvider.expandStatus.value;
-    print("toggleExpandStatus：${calendarProvider.expandStatus.value}");
+    LogUtil.log(
+        TAG: this.runtimeType,
+        message: "toggleExpandStatus：${calendarProvider.expandStatus.value}");
   }
 
   //监听展开变化
@@ -234,20 +254,43 @@ class CalendarController {
       {bool needAnimation = false,
       Duration duration = const Duration(milliseconds: 500),
       Curve curve = Curves.ease}) {
-    DateModel dateModel = DateModel.fromDateTime(DateTime(year, month, 1));
-    //计算目标索引
-    int targetPage = monthList.indexOf(dateModel);
-    if (targetPage == -1) {
-      return;
-    }
-    if (monthController.hasClients == false) {
-      return;
-    }
-    if (needAnimation) {
-      monthController.animateToPage(targetPage,
-          duration: duration, curve: curve);
+    if (calendarProvider.expandStatus.value == true) {
+      DateModel dateModel = DateModel.fromDateTime(DateTime(year, month, 1));
+      //计算目标索引
+      int targetPage = monthList.indexOf(dateModel);
+      if (targetPage == -1) {
+        return;
+      }
+      if (monthController.hasClients == false) {
+        return;
+      }
+      if (needAnimation) {
+        monthController.animateToPage(targetPage,
+            duration: duration, curve: curve);
+      } else {
+        monthController.jumpToPage(targetPage);
+      }
     } else {
-      monthController.jumpToPage(targetPage);
+      DateModel dateModel = DateModel.fromDateTime(DateTime(year, month, 1));
+      //计算目标索引
+      int targetPage = 0;
+      for (int i = 0; i < weekList.length - 1; i++) {
+        DateModel first = weekList[i];
+        DateModel next = weekList[i + 1];
+        if (!first.isAfter(dateModel) && next.isAfter(dateModel)) {
+          targetPage = i;
+          return;
+        }
+      }
+      if (weekController.hasClients == false) {
+        return;
+      }
+      if (needAnimation) {
+        weekController.animateToPage(targetPage,
+            duration: duration, curve: curve);
+      } else {
+        weekController.jumpToPage(targetPage);
+      }
     }
   }
 
@@ -293,7 +336,7 @@ class CalendarController {
     }
 
     if ((monthController.page.toInt() + 1) >= monthList.length) {
-      print("moveToNextMonth：当前是最后一个月份");
+      LogUtil.log(TAG: this.runtimeType, message: "moveToNextMonth：当前是最后一个月份");
       return;
     }
     DateTime targetDateTime =
@@ -324,7 +367,8 @@ class CalendarController {
     }
 
     if ((monthController.page.toInt()) == 0) {
-      print("moveToPreviousMonth：当前是第一个月份");
+      LogUtil.log(
+          TAG: this.runtimeType, message: "moveToPreviousMonth：当前是第一个月份");
       return;
     }
     DateTime targetDateTime =

lib/utils/LogUtil.dart

@@ -0,0 +1,23 @@
+import 'package:flutter/cupertino.dart';
+
+/**
+ * 打印日志，外部可以控制日历信息的打印显示，方便调试查错
+ */
+class LogUtil {
+  static bool _enableLog = true; //是否可以打印日志
+
+  static set enableLog(bool value) {
+    _enableLog = value;
+  }
+
+  /**
+   * TAG:类名
+   * message：一般就方法名+自定义信息吧
+   */
+  static void log(
+      {@required dynamic TAG , String message = ""}) {
+    if (_enableLog) {
+      print("flutter_custom_calendar------$TAG------>$message");
+    }
+  }
+}

lib/utils/date_util.dart

@@ -1,6 +1,7 @@
 import 'dart:math';
 
 import 'package:flutter_custom_calendar/model/date_model.dart';
+import 'package:flutter_custom_calendar/utils/LogUtil.dart';
 
 /**
  * 工具类
@@ -119,7 +120,10 @@ class DateUtil {
     //获取该月的天数
     int monthDayCount = getMonthDaysCount(year, month);
 
-    print("$year年$month月,有$monthDayCount天,第一天的index为${mPreDiff}");
+    LogUtil.log(
+        TAG: "DateUtil",
+        message:
+            "initCalendarForMonthView:$year年$month月,有$monthDayCount天,第一天的index为${mPreDiff}");
 
     List<DateModel> result = new List();
 
@@ -179,7 +183,10 @@ class DateUtil {
     int preIndex = firstDayOfMonth.weekday - 1;
 //    int lastIndex = lastDayOfMonth.weekday;
 
-    print("$year年$month月:有${((preIndex + monthDayCount) / 7).toInt() + 1}行");
+    LogUtil.log(
+        TAG: "DateUtil",
+        message:
+            "getMonthViewLineCount:$year年$month月:有${((preIndex + monthDayCount) / 7).toInt() + 1}行");
     return ((preIndex + monthDayCount) / 7).toInt() + 1;
   }
 
@@ -191,7 +198,7 @@ class DateUtil {
       {DateModel minSelectDate,
       DateModel maxSelectDate,
       Map<DateTime, Object> extraDataMap}) {
-    print("initCalendarForWeekView");
+    LogUtil.log(TAG: "DateUtil", message: "initCalendarForWeekView");
     List<DateModel> items = List();
 
     int weekDay = currentDate.weekday;

lib/utils/solar_term_util.dart

@@ -2143,8 +2143,6 @@ class SolarTermUtil {
     List<String> solarTerms = new List(24);
     List<String> preOffset = getSolarTermsPreOffset(year - 1);
     List<String> nextOffset = getSolarTermsNextOffset(year - 1);
-//    print("getSolarTerms:" + preOffset.toString());
-//    print("getSolarTerms:" + nextOffset.toString());
     System.arraycopy(preOffset, 0, solarTerms, 0, preOffset.length);
     System.arraycopy(nextOffset, 0, solarTerms, 22, nextOffset.length);
 

lib/widget/calendar_view.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_custom_calendar/calendar_provider.dart';
 import 'package:flutter_custom_calendar/controller.dart';
 import 'package:flutter_custom_calendar/model/date_model.dart';
+import 'package:flutter_custom_calendar/utils/LogUtil.dart';
 import 'package:flutter_custom_calendar/widget/month_view_pager.dart';
 import 'package:flutter_custom_calendar/widget/week_view_pager.dart';
 import 'package:provider/provider.dart';
@@ -83,7 +84,7 @@ class CalendarContainerState extends State<CalendarContainer>
 
   @override
   Widget build(BuildContext context) {
-    print("CalendarContainerState build");
+    LogUtil.log(TAG: this.runtimeType, message: "CalendarContainerState build");
     //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.
     itemHeight = MediaQuery.of(context).size.width / 7;
     totalHeight = itemHeight * 6 + 10 * (6 - 1);

lib/widget/month_view.dart

@@ -3,6 +3,7 @@ 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';
+import 'package:flutter_custom_calendar/utils/LogUtil.dart';
 import 'package:flutter_custom_calendar/utils/date_util.dart';
 import 'package:provider/provider.dart';
 
@@ -59,11 +60,7 @@ class _MonthViewState extends State<MonthView> {
     itemHeight = MediaQuery.of(context).size.width / 7;
     totalHeight = itemHeight * lineCount + mainSpacing * (lineCount - 1);
 
-    return GestureDetector(
-        onVerticalDragStart: (DragStartDetails detail) {
-          print("onHorizontalDragStart:$detail");
-        },
-        child: Container(height: totalHeight, child: getView()));
+    return Container(height: totalHeight, child: getView());
   }
 
   Widget getView() {
@@ -71,8 +68,10 @@ class _MonthViewState extends State<MonthView> {
         builder: (context, calendarProvider, child) {
       CalendarConfiguration configuration =
           calendarProvider.calendarConfiguration;
-      print(
-          "MonthView Consumer:calendarProvider.selectDateModel:${calendarProvider.selectDateModel}");
+      LogUtil.log(
+          TAG: this.runtimeType,
+          message:
+              "build calendarProvider.selectDateModel:${calendarProvider.selectDateModel}");
       return new GridView.builder(
           physics: NeverScrollableScrollPhysics(),
           gridDelegate: new SliverGridDelegateWithFixedCrossAxisCount(
@@ -97,8 +96,9 @@ class _MonthViewState extends State<MonthView> {
 
             return GestureDetector(
               onTap: () {
-                print("GestureDetector onTap：$dateModel");
-                print("!dateModel.isInRange:${!dateModel.isInRange}");
+                LogUtil.log(
+                    TAG: this.runtimeType,
+                    message: "GestureDetector onTap: $dateModel}");
 
                 //范围外不可点击
                 if (!dateModel.isInRange) {

lib/widget/month_view_pager.dart

@@ -16,6 +16,8 @@ class MonthViewPager extends StatefulWidget {
 class _MonthViewPagerState extends State<MonthViewPager> {
   CalendarProvider calendarProvider;
 
+  var totalHeight;
+
   @override
   void initState() {
     calendarProvider = Provider.of<CalendarProvider>(context, listen: false);
@@ -32,8 +34,6 @@ class _MonthViewPagerState extends State<MonthViewPager> {
           .add(Duration(
               days: DateUtil.getMonthDaysCount(
                   firstDayOfMonth.year, firstDayOfMonth.month))));
-//      print("firstDayOfMonth:$firstDayOfMonth");
-//      print("lastDayOfMonth:$lastDayOfMonth");
 
       if ((dateModel.isAfter(firstDayOfMonth) ||
               dateModel.isSameWith(firstDayOfMonth)) &&
@@ -42,8 +42,6 @@ class _MonthViewPagerState extends State<MonthViewPager> {
         break;
       }
     }
-//    print("monthList:$monthList");
-//    print("当前月:index:$index");
     WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
       calendarProvider.calendarConfiguration.pageController.jumpToPage(index);
     });
@@ -61,32 +59,46 @@ class _MonthViewPagerState extends State<MonthViewPager> {
     CalendarConfiguration configuration =
         calendarProvider.calendarConfiguration;
 
-    return Container(
-      child: PageView.builder(
-        onPageChanged: (position) {
-          //月份的变化
-          DateModel dateModel = configuration.monthList[position];
-          configuration.monthChange(dateModel.year, dateModel.month);
-        },
-        controller: configuration.pageController,
-        itemBuilder: (context, index) {
-          DateModel dateModel = configuration.monthList[index];
-          return new MonthView(
-            year: dateModel.year,
-            month: dateModel.month,
-            minSelectDate: DateModel.fromDateTime(DateTime(
-                configuration.minSelectYear,
-                configuration.minSelectMonth,
-                configuration.minSelectDay)),
-            maxSelectDate: DateModel.fromDateTime(DateTime(
-                configuration.maxSelectYear,
-                configuration.maxSelectMonth,
-                configuration.maxSelectDay)),
-            extraDataMap: configuration.extraDataMap,
-          );
-        },
-        itemCount: configuration.monthList.length,
-      ),
+    return PageView.builder(
+      onPageChanged: (position) {
+        //月份的变化
+        DateModel dateModel = configuration.monthList[position];
+        configuration.monthChange(dateModel.year, dateModel.month);
+        //
+        calendarProvider.lastClickDateModel = configuration.monthList[position];
+        //计算下高度，使PageView自适应高度
+
+//        double itemHeight = MediaQuery.of(context).size.width / 7;
+//
+//        int lineCount =
+//            DateUtil.getMonthViewLineCount(dateModel.year, dateModel.month);
+//        double newHeight = itemHeight * lineCount +
+//            configuration.verticalSpacing * (lineCount - 1);
+//       if(totalHeight!=newHeight){
+//         totalHeight=newHeight;
+//         setState(() {
+//
+//         });
+//       }
+      },
+      controller: configuration.pageController,
+      itemBuilder: (context, index) {
+        DateModel dateModel = configuration.monthList[index];
+        return new MonthView(
+          year: dateModel.year,
+          month: dateModel.month,
+          minSelectDate: DateModel.fromDateTime(DateTime(
+              configuration.minSelectYear,
+              configuration.minSelectMonth,
+              configuration.minSelectDay)),
+          maxSelectDate: DateModel.fromDateTime(DateTime(
+              configuration.maxSelectYear,
+              configuration.maxSelectMonth,
+              configuration.maxSelectDay)),
+          extraDataMap: configuration.extraDataMap,
+        );
+      },
+      itemCount: configuration.monthList.length,
     );
   }
 }

lib/widget/week_view_pager.dart

@@ -72,6 +72,8 @@ class _WeekViewPagerState extends State<WeekViewPager> {
             configuration.monthChange(
                 firstDayOfWeek.year, firstDayOfWeek.month);
           }
+          calendarProvider.lastClickDateModel =
+              configuration.weekList[position];
 //          DateModel dateModel = configuration.weekList[position];
 //          configuration.monthChange(dateModel.year, dateModel.month);
         },