日历增加padding和margin属性

日历高度自适应
日历item大小计算问题

example/lib/blue_style_page.dart

@@ -0,0 +1,253 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_custom_calendar/flutter_custom_calendar.dart';
+import 'package:flutter_custom_calendar/style/style.dart';
+import 'package:random_pk/random_pk.dart';
+
+/**
+ * 自定义一些额外的数据，实现标记功能
+ */
+class BlueStylePage extends StatefulWidget {
+  BlueStylePage({Key key, this.title}) : super(key: key);
+
+  final String title;
+
+  @override
+  _BlueStylePageState createState() => _BlueStylePageState();
+}
+
+class _BlueStylePageState extends State<BlueStylePage> {
+  ValueNotifier<String> text;
+  ValueNotifier<String> selectText;
+
+  CalendarController controller;
+
+  Map<DateModel, String> customExtraData = {};
+
+  @override
+  void initState() {
+    controller = new CalendarController(
+        weekBarItemWidgetBuilder: () {
+          return CustomStyleWeekBarItem();
+        },
+        dayWidgetBuilder: (dateModel) {
+          return CustomStyleDayWidget(dateModel);
+        },
+        showMode: Constants.MODE_SHOW_MONTH_AND_WEEK,
+        extraDataMap: customExtraData);
+
+    controller.addMonthChangeListener(
+      (year, month) {
+        text.value = "$year年$month月";
+      },
+    );
+
+    controller.addOnCalendarSelectListener((dateModel) {
+      //刷新选择的时间
+      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
+  Widget build(BuildContext context) {
+    var calendarWidget = CalendarViewWidget(
+      calendarController: controller,
+      boxDecoration: BoxDecoration(
+        borderRadius: BorderRadius.only(
+            bottomLeft: Radius.circular(20), bottomRight: Radius.circular(20)),
+        color: Colors.white,
+      ),
+      padding: EdgeInsets.only(left: 20, right: 20, bottom: 10),
+      margin: const EdgeInsets.only(
+        left: 15,
+        right: 15,
+      ),
+    );
+
+    return SafeArea(
+      child: Scaffold(
+        appBar: AppBar(
+          backgroundColor: Color(0xff6219EC),
+        ),
+        backgroundColor: Color(0xff6219EC),
+        body: new Container(
+          child: new Column(
+            children: <Widget>[
+              SizedBox(
+                height: 20,
+              ),
+              Column(
+                crossAxisAlignment: CrossAxisAlignment.stretch,
+                mainAxisSize: MainAxisSize.min,
+                children: <Widget>[
+                  Container(
+                    height: 100,
+                    margin: const EdgeInsets.only(left: 15, right: 15),
+                    decoration: BoxDecoration(
+                        borderRadius: BorderRadius.only(
+                          topLeft: Radius.circular(20),
+                          topRight: Radius.circular(20),
+                        ),
+                        color: Colors.white),
+                    child: Row(
+                      children: <Widget>[
+                        Padding(
+                          padding: const EdgeInsets.only(left: 30),
+                          child: RichText(
+                            text: TextSpan(
+                              children: [
+                                TextSpan(
+                                  text: "Februaly",
+                                  style: TextStyle(
+                                      color: Colors.black,
+                                      fontWeight: FontWeight.w700,
+                                      fontSize: 30),
+                                ),
+                                TextSpan(
+                                  text: " 2019",
+                                  style: TextStyle(
+                                      color: Colors.black, fontSize: 30),
+                                ),
+                              ],
+                            ),
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                  calendarWidget
+                ],
+              ),
+              ValueListenableBuilder(
+                  valueListenable: selectText,
+                  builder: (context, value, child) {
+                    return new Text(selectText.value);
+                  }),
+            ],
+          ),
+        ),
+        floatingActionButton: FloatingActionButton(
+          onPressed: () {
+            controller.toggleExpandStatus();
+          },
+          tooltip: 'Increment',
+          child: Icon(Icons.add),
+        ), // This trailing comma makes auto-formatting nicer for build methods.
+      ),
+    );
+  }
+}
+
+class CustomStyleWeekBarItem extends BaseWeekBar {
+  List<String> weekList = ["mo", "tu", "we", "th", "fr", "sa", "su"];
+
+  //可以直接重写build方法
+  @override
+  Widget build(BuildContext context) {
+    List<Widget> children = List();
+
+    var items = getWeekDayWidget();
+    children.add(Row(
+      children: items,
+    ));
+    children.add(Divider(
+      color: Colors.grey,
+    ));
+    return Column(
+      children: children,
+    );
+  }
+
+  @override
+  Widget getWeekBarItem(int index) {
+    return new Container(
+      margin: EdgeInsets.only(top: 10, bottom: 10),
+      child: new Center(
+        child: new Text(
+          weekList[index],
+          style:
+              TextStyle(fontWeight: FontWeight.w700, color: Color(0xffC5BCDC)),
+        ),
+      ),
+    );
+  }
+}
+
+class CustomStyleDayWidget extends BaseCombineDayWidget {
+  CustomStyleDayWidget(DateModel dateModel) : super(dateModel);
+
+  TextStyle normalTextStyle =
+      TextStyle(fontWeight: FontWeight.w700, color: Colors.black);
+
+  TextStyle noIsCurrentMonthTextStyle =
+      TextStyle(fontWeight: FontWeight.w700, color: Colors.grey);
+
+  @override
+  Widget getNormalWidget(DateModel dateModel) {
+    return Container(
+      margin: EdgeInsets.all(8),
+      child: new Stack(
+        alignment: Alignment.center,
+        children: <Widget>[
+          new Column(
+            mainAxisSize: MainAxisSize.max,
+            crossAxisAlignment: CrossAxisAlignment.center,
+            children: <Widget>[
+              //公历
+              new Expanded(
+                child: Center(
+                  child: new Text(
+                    dateModel.day.toString(),
+                    style: dateModel.isCurrentMonth
+                        ? normalTextStyle
+                        : noIsCurrentMonthTextStyle,
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+
+  @override
+  Widget getSelectedWidget(DateModel dateModel) {
+    return Container(
+//      margin: EdgeInsets.all(8),
+      decoration: new BoxDecoration(
+        borderRadius: BorderRadius.all(
+          Radius.circular(5),
+        ),
+        color: Color(0xffFED32B),
+      ),
+      child: new Stack(
+        alignment: Alignment.center,
+        children: <Widget>[
+          new Column(
+            mainAxisSize: MainAxisSize.max,
+            crossAxisAlignment: CrossAxisAlignment.center,
+            children: <Widget>[
+              //公历
+              new Expanded(
+                child: Center(
+                  child: new Text(
+                    dateModel.day.toString(),
+                    style: dateModel.isCurrentMonth
+                        ? normalTextStyle
+                        : noIsCurrentMonthTextStyle,
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+}

example/lib/custom_sign_page.dart

@@ -113,6 +113,7 @@ class _CustomSignPageState extends State<CustomSignPage> {
       floatingActionButton: FloatingActionButton(
         onPressed: () {
           controller.toggleExpandStatus();
+//        controller.changeExtraData({});
         },
         tooltip: 'Increment',
         child: Icon(Icons.add),

example/lib/default_style_page.dart

@@ -24,10 +24,10 @@ class _DefaultStylePageState extends State<DefaultStylePage> {
     DateTime now = DateTime.now();
     controller = new CalendarController(
         minYear: now.year,
-        minYearMonth: now.month - 2,
+        minYearMonth: now.month - 5,
         maxYear: now.year,
-        maxYearMonth: now.month + 1,
+        maxYearMonth: now.month + 5,
-        showMode: Constants.MODE_SHOW_WEEK_AND_MONTH);
+        showMode: Constants.MODE_SHOW_MONTH_AND_WEEK);
 
     controller.addMonthChangeListener(
       (year, month) {

example/lib/main.dart

@@ -1,6 +1,7 @@
 import 'package:example/only_week_page.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
+import 'blue_style_page.dart';
 import 'custom_sign_page.dart';
 import 'custom_style_page.dart';
 import 'default_style_page.dart';
@@ -39,6 +40,9 @@ class MyApp extends StatelessWidget {
           "/only_week_view": (context) => OnlyWeekPage(
                 title: "仅显示周视图",
               ),
+          "/blue_style_page":(context)=>BlueStylePage(
+            title:"蓝色背景Demo"
+          )
         },
         title: 'Flutter Demo',
         theme: ThemeData(
@@ -91,9 +95,74 @@ class HomePage extends StatelessWidget {
               },
               child: new Text("仅显示周视图"),
             ),
+            new RaisedButton(onPressed: (){
+              Navigator.pushNamed(context, "/blue_style_page");
+            },child: new Text("蓝色Demo"),)
           ],
         ),
       ),
     );
   }
 }
+
+//
+//# Desktop Flutter Example
+//
+//This is the standard Flutter template application, modified to run on desktop.
+//
+//The `linux` and `windows` directories serve as early prototypes of
+//what will eventually become the `flutter create` templates for desktop, and will
+//be evolving over time to better reflect that goal. The `macos` directory has
+//now become a `flutter create` template, so is largely identical to what that
+//command creates.
+//
+//## Building and Running
+//
+//See [the main project README](../README.md).
+//
+//To build without running, use `flutter build macos`/`windows`/`linux` rather than `flutter run`, as with
+//a standard Flutter project.
+//
+//## Dart Differences from Flutter Template
+//
+//The `main.dart` and `pubspec.yaml` have minor changes to support desktop:
+//* `debugDefaultTargetPlatformOverride` is set to avoid 'Unknown platform'
+//exceptions.
+//* The font is explicitly set to Roboto, and Roboto is bundled via
+//`pubspec.yaml`, to ensure that text displays on all platforms.
+//
+//See the [Flutter Application Requirements section of the Flutter page on
+//desktop support](https://github.com/flutter/flutter/wiki/Desktop-shells#flutter-application-requirements)
+//for more information.
+//
+//## Adapting for Another Project
+//
+//Since `flutter create` is not yet supported for Windows and Linux, the easiest
+//way to try out desktop support with an existing Flutter application on those
+//platforms is to copy the platform directories from this example; see below for
+//details. For macOS, just run `flutter create --macos .` in your project.
+//
+//Be sure to read the [Flutter page on desktop
+//support](https://github.com/flutter/flutter/wiki/Desktop-shells) before trying to
+//run an existing project on desktop, especially the [Flutter Application Requirements
+//section](https://github.com/flutter/flutter/wiki/Desktop-shells#flutter-application-requirements).
+//
+//### Coping the Desktop Runners
+//
+//The 'linux' and 'windows' directories are self-contained, and can be copied to
+//an existing Flutter project, enabling `flutter run` for those platforms.
+//
+//**Be aware that neither the API surface of the Flutter desktop libraries nor the
+//interaction between the `flutter` tool and the platform directories is stable,
+//and no attempt will be made to provide supported migration paths as things
+//change.** You should expect that every time you update Flutter you may have
+//to delete your copies of the platform directories and re-copy them from an
+//updated version of flutter-desktop-embedding.
+//
+//### Customizing the Runners
+//
+//See [Application Customization](App-Customization.md) for premilinary
+//documenation on modifying basic application information like name and icon.
+//
+//If you are building for macOS, you should also read about [managing macOS
+//security configurations](../macOS-Security.md).

lib/calendar_provider.dart

@@ -21,6 +21,15 @@ class CalendarProvider extends ChangeNotifier {
 
   double get totalHeight => _totalHeight;
 
+  ValueNotifier<int> _generation =
+      new ValueNotifier(0); //生成的int值，每次变化，都会刷新整个日历。
+
+  ValueNotifier<int> get generation => _generation;
+
+  set generation(ValueNotifier<int> value) {
+    _generation = value;
+  }
+
   set totalHeight(double value) {
     _totalHeight = value;
   }
@@ -95,27 +104,64 @@ class CalendarProvider extends ChangeNotifier {
   //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;
 
-  void initData(
+  void initData({
-      {Set<DateModel> selectedDateList,
+    Set<DateModel> selectedDateList,
     DateModel selectDateModel,
-      CalendarConfiguration calendarConfiguration}) {
+    CalendarConfiguration calendarConfiguration,
+    EdgeInsetsGeometry padding,
+    EdgeInsetsGeometry margin,
+  }) {
     LogUtil.log(TAG: this.runtimeType, message: "CalendarProvider initData");
     if (selectedDateList != null) {
       this.selectedDateList.addAll(selectedDateList);
     }
     this.selectDateModel = selectDateModel;
     this.calendarConfiguration = calendarConfiguration;
+    this.calendarConfiguration.padding = padding;
+    this.calendarConfiguration.margin = margin;
     //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())
       ..day = 15;
+    //初始化展示状态
     if (calendarConfiguration.showMode == Constants.MODE_SHOW_ONLY_WEEK ||
         calendarConfiguration.showMode == Constants.MODE_SHOW_WEEK_AND_MONTH) {
       expandStatus = ValueNotifier(false);
     } else {
       expandStatus = ValueNotifier(true);
     }
+    //初始化item的大小。如果itemSize为空，默认是宽度/7。网页版的话是高度/7。需要减去padding和margin值
+    if (calendarConfiguration.itemSize == null) {
+      MediaQueryData mediaQueryData =
+          MediaQueryData.fromWindow(WidgetsBinding.instance.window);
+      if (mediaQueryData.orientation == Orientation.landscape) {
+        calendarConfiguration.itemSize = (mediaQueryData.size.height -
+                calendarConfiguration.padding.horizontal -
+                calendarConfiguration.margin.horizontal) /
+            7;
+      } else {
+        calendarConfiguration.itemSize = (mediaQueryData.size.width -
+                calendarConfiguration.padding.horizontal -
+                calendarConfiguration.margin.horizontal) /
+            7;
+      }
+    } else {
+      //如果指定了itemSize的大小，那就按照itemSize的大小去绘制
+    }
+
+    //如果第一个页面展示的是月视图，需要计算下初始化的高度
+    if (calendarConfiguration.showMode == Constants.MODE_SHOW_ONLY_MONTH ||
+        calendarConfiguration.showMode == Constants.MODE_SHOW_MONTH_AND_WEEK) {
+      int lineCount = DateUtil.getMonthViewLineCount(
+          calendarConfiguration.nowYear, calendarConfiguration.nowMonth);
+      totalHeight = calendarConfiguration.itemSize * (lineCount) +
+          calendarConfiguration.verticalSpacing * (lineCount - 1);
+      print(
+          "1111111:totalHeight:$totalHeight,lineCount:$lineCount,calendarConfiguration.nowYear:${calendarConfiguration.nowYear},calendarConfiguration.nowMonth:${calendarConfiguration.nowMonth}");
+    } else {
+      totalHeight = calendarConfiguration.itemSize;
+    }
   }
 
   //退出的时候，清除数据

lib/configuration.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_custom_calendar/controller.dart';
 import 'package:flutter_custom_calendar/model/date_model.dart';
+import 'package:flutter/foundation.dart';
 
 /**
  * 配置信息类
@@ -43,6 +44,8 @@ class CalendarConfiguration {
   double verticalSpacing; //日历item之间的竖直方向间距，默认10
   BoxDecoration boxDecoration; //整体的背景设置
   double itemSize; //默认是屏幕宽度/7
+  EdgeInsetsGeometry padding;
+  EdgeInsetsGeometry margin;
 
   //支持自定义绘制
   DayWidgetBuilder dayWidgetBuilder; //创建日历item
@@ -52,11 +55,14 @@ class CalendarConfiguration {
    * 监听变化
    */
   //各种事件回调
-  OnMonthChange monthChange; //月份切换事件
+  OnMonthChange monthChange; //月份切换事件 （已弃用,交给multiMonthChanges来实现）
   OnCalendarSelect calendarSelect; //点击选择事件
   OnMultiSelectOutOfRange multiSelectOutOfRange; //多选超出指定范围
   OnMultiSelectOutOfSize multiSelectOutOfSize; //多选超出限制个数
 
+  ObserverList<OnMonthChange> monthChangeListeners =
+      ObserverList<OnMonthChange>(); //保存多个月份监听的事件
+
   /**
    * 下面的信息不是配置的，是根据配置信息进行计算出来的
    */
@@ -87,7 +93,10 @@ class CalendarConfiguration {
       this.monthController,
       this.weekController,
       this.verticalSpacing,
-      this.itemSize,this.showMode});
+      this.itemSize,
+      this.showMode,
+      this.padding,
+      this.margin});
 
   @override
   String toString() {

lib/controller.dart

@@ -39,8 +39,8 @@ class CalendarController {
       int maxYear = 2055,
       int minYearMonth = 1,
       int maxYearMonth = 12,
-      int nowYear = -1,
+      int nowYear,
-      int nowMonth = -1,
+      int nowMonth,
       int minSelectYear = 1971,
       int minSelectMonth = 1,
       int minSelectDay = 1,
@@ -54,6 +54,13 @@ class CalendarController {
       double itemSize,
       Map<DateModel, Object> extraDataMap = EMPTY_MAP}) {
     LogUtil.log(TAG: this.runtimeType, message: "init CalendarConfiguration");
+    //如果没有指定当前月份和年份，默认是当年时间
+    if (nowYear == null) {
+      nowYear = DateTime.now().year;
+    }
+    if (nowMonth == null) {
+      nowMonth = DateTime.now().month;
+    }
     calendarConfiguration = CalendarConfiguration(
         selectMode: selectMode,
         showMode: showMode,
@@ -181,7 +188,8 @@ class CalendarController {
 
   //月份切换监听
   void addMonthChangeListener(OnMonthChange listener) {
-    this.calendarConfiguration.monthChange = listener;
+//    this.calendarConfiguration.monthChange = listener;
+    this.calendarConfiguration.monthChangeListeners.add(listener);
   }
 
   //点击选择监听
@@ -233,9 +241,11 @@ class CalendarController {
       } else {
         calendarProvider.calendarConfiguration.monthController
             .previousPage(duration: DEFAULT_DURATION, curve: Curves.ease);
-        calendarProvider.calendarConfiguration.monthChange(
+        calendarProvider.calendarConfiguration.monthChangeListeners
-            monthList[currentIndex - 1].year,
+            .forEach((listener) {
+          listener(monthList[currentIndex - 1].year,
               monthList[currentIndex - 1].month);
+        });
         DateModel temp = new DateModel();
         temp.year = monthList[currentIndex].year;
         temp.month = monthList[currentIndex].month;
@@ -272,9 +282,12 @@ class CalendarController {
       } else {
         calendarProvider.calendarConfiguration.monthController
             .nextPage(duration: DEFAULT_DURATION, curve: Curves.ease);
-        calendarProvider.calendarConfiguration.monthChange(
+        calendarProvider.calendarConfiguration.monthChangeListeners
-            monthList[currentIndex + 1].year,
+            .forEach((listener) {
+          listener(monthList[currentIndex + 1].year,
               monthList[currentIndex + 1].month);
+        });
+
         DateModel temp = new DateModel();
         temp.year = monthList[currentIndex].year;
         temp.month = monthList[currentIndex].month;

lib/widget/calendar_view.dart

@@ -19,11 +19,19 @@ class CalendarViewWidget extends StatefulWidget {
   //整体的背景设置
   BoxDecoration boxDecoration;
 
+  //日历的padding和margin
+  EdgeInsetsGeometry padding;
+  EdgeInsetsGeometry margin;
+
   //控制器
   final CalendarController calendarController;
 
   CalendarViewWidget(
-      {Key key, @required this.calendarController, this.boxDecoration})
+      {Key key,
+      @required this.calendarController,
+      this.boxDecoration,
+      this.padding = EdgeInsets.zero,
+      this.margin = EdgeInsets.zero})
       : super(key: key);
 
   @override
@@ -35,7 +43,9 @@ class _CalendarViewWidgetState extends State<CalendarViewWidget> {
   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);
+        calendarConfiguration: widget.calendarController.calendarConfiguration,
+        padding: widget.padding,
+        margin: widget.margin);
 
     super.initState();
   }
@@ -53,6 +63,8 @@ class _CalendarViewWidgetState extends State<CalendarViewWidget> {
       child: Container(
           //外部可以自定义背景设置
           decoration: widget.boxDecoration,
+          padding: widget.padding,
+          margin: widget.margin,
           //使用const，保证外界的setState不会刷新日历这个widget
           child: CalendarContainer(widget.calendarController)),
     );
@@ -128,47 +140,32 @@ class CalendarContainerState extends State<CalendarContainer>
           }
         });
       });
-    }else{
+    } else {
-      index=0;
+      index = 0;
+    }
 
+    widget.calendarController.addMonthChangeListener((year, month) {
+      if (widget.calendarController.calendarProvider.calendarConfiguration
+              .showMode !=
+          Constants.MODE_SHOW_ONLY_WEEK) {
+        //月份切换的时候，如果高度发生变化的话，需要setState使高度整体自适应
+        int lineCount = DateUtil.getMonthViewLineCount(year, month);
+        double newHeight = itemHeight * (lineCount) +
+            calendarProvider.calendarConfiguration.verticalSpacing *
+                (lineCount - 1);
+        LogUtil.log(
+            TAG: this.runtimeType,
+            message: "totalHeight:$totalHeight,newHeight:$newHeight");
+        if (totalHeight.toInt() != newHeight.toInt()) {
+          LogUtil.log(TAG: this.runtimeType, message: "月份视图高度发生变化");
+          setState(() {
+            totalHeight = newHeight;
+          });
         }
+      }
+    });
 
-//    widget.calendarController.addMonthChangeListener((year, month) {
+    itemHeight = calendarProvider.calendarConfiguration.itemSize;
-//      if (widget.calendarController.calendarProvider.calendarConfiguration
-//              .showMode !=
-//          Constants.MODE_SHOW_ONLY_WEEK) {
-//        //月份切换的时候，如果高度发生变化的话，需要setState使高度整体自适应
-//        int lineCount = DateUtil.getMonthViewLineCount(year, month);
-//        double newHeight = itemHeight * lineCount +
-//            calendarProvider.calendarConfiguration.verticalSpacing *
-//                (lineCount - 1);
-//        if (totalHeight.toInt() != newHeight.toInt()) {
-//          LogUtil.log(
-//              TAG: this.runtimeType,
-//              message: "totalHeight:$totalHeight,newHeight:$newHeight");
-//
-//          LogUtil.log(TAG: this.runtimeType, message: "月份视图高度发生变化");
-//          setState(() {
-//            totalHeight = newHeight;
-//          });
-//        }
-//      }
-//    });
-
-    //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.
-
-    MediaQueryData mediaQueryData =
-        MediaQueryData.fromWindow(WidgetsBinding.instance.window);
-
-    //如果itemSize为空，默认是宽度/7。网页版的话是高度/7
-    itemHeight = calendarProvider.calendarConfiguration.itemSize != null
-        ? calendarProvider.calendarConfiguration.itemSize
-        : mediaQueryData.orientation == Orientation.landscape
-            ? mediaQueryData.size.height / 7
-            : mediaQueryData.size.width / 7;
-
-    calendarProvider.totalHeight = itemHeight * 6 +
-        calendarProvider.calendarConfiguration.verticalSpacing * (6 - 1);
     totalHeight = calendarProvider.totalHeight;
   }
 
@@ -180,9 +177,6 @@ class CalendarContainerState extends State<CalendarContainer>
   @override
   Widget build(BuildContext context) {
     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 = calendarProvider.calendarConfiguration.itemSize ??
-//        MediaQuery.of(context).size.width / 7;
     return Container(
       width: itemHeight * 7,
       child: new Column(

lib/widget/month_view.dart

@@ -117,6 +117,7 @@ class _MonthViewState extends State<MonthView>
 
     return new GridView.builder(
         addAutomaticKeepAlives: true,
+        padding: EdgeInsets.zero,
         physics: const NeverScrollableScrollPhysics(),
         gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
             crossAxisCount: 7, mainAxisSpacing: configuration.verticalSpacing),

lib/widget/month_view_pager.dart

@@ -15,7 +15,8 @@ class MonthViewPager extends StatefulWidget {
   _MonthViewPagerState createState() => _MonthViewPagerState();
 }
 
-class _MonthViewPagerState extends State<MonthViewPager> with AutomaticKeepAliveClientMixin{
+class _MonthViewPagerState extends State<MonthViewPager>
+    with AutomaticKeepAliveClientMixin {
   CalendarProvider calendarProvider;
 
   @override
@@ -71,7 +72,9 @@ class _MonthViewPagerState extends State<MonthViewPager> with AutomaticKeepAlive
         }
         //月份的变化
         DateModel dateModel = configuration.monthList[position];
-        configuration.monthChange(dateModel.year, dateModel.month);
+        configuration.monthChangeListeners.forEach((listener) {
+          listener(dateModel.year, dateModel.month);
+        });
         //用来保存临时变量，用于月视图切换到周视图的时候，默认是显示中间的一周
         if (calendarProvider.lastClickDateModel != null ||
             calendarProvider.lastClickDateModel.month != dateModel.month) {
@@ -81,24 +84,6 @@ class _MonthViewPagerState extends State<MonthViewPager> with AutomaticKeepAlive
           temp.day = configuration.monthList[position].day + 14;
           calendarProvider.lastClickDateModel = temp;
         }
-
-        //计算下高度，使PageView自适应高度
-        if (calendarProvider.calendarConfiguration.showMode !=
-            Constants.MODE_SHOW_ONLY_WEEK) {
-          //月份切换的时候，如果高度发生变化的话，需要setState使高度整体自适应
-//          int lineCount =
-//              DateUtil.getMonthViewLineCount(dateModel.year, dateModel.month);
-//          double newHeight = (calendarProvider.calendarConfiguration.itemSize ??
-//                      MediaQuery.of(context).size.width / 7) *
-//                  lineCount +
-//              calendarProvider.calendarConfiguration.verticalSpacing *
-//                  (lineCount - 1);
-//          if (calendarProvider.totalHeight.toInt() != newHeight.toInt()) {
-//            LogUtil.log(TAG: this.runtimeType, message: "月份视图高度发生变化");
-//            calendarProvider.totalHeight = newHeight;
-////          calendarProvider.changeTotalHeight(newHeight);
-//          }
-        }
       },
       controller: configuration.monthController,
       itemBuilder: (context, index) {

lib/widget/week_view_pager.dart

@@ -14,7 +14,8 @@ class WeekViewPager extends StatefulWidget {
   _WeekViewPagerState createState() => _WeekViewPagerState();
 }
 
-class _WeekViewPagerState extends State<WeekViewPager> with AutomaticKeepAliveClientMixin{
+class _WeekViewPagerState extends State<WeekViewPager>
+    with AutomaticKeepAliveClientMixin {
   int lastMonth; //保存上一个月份，不然不知道月份发生了变化
   CalendarProvider calendarProvider;
 
@@ -64,8 +65,9 @@ class _WeekViewPagerState extends State<WeekViewPager> with AutomaticKeepAliveCl
                 TAG: this.runtimeType,
                 message:
                     "WeekViewPager PageView monthChange:currentMonth:${currentMonth}");
-            configuration.monthChange(
+            configuration.monthChangeListeners.forEach((listener) {
-                firstDayOfWeek.year, firstDayOfWeek.month);
+              listener(firstDayOfWeek.year, firstDayOfWeek.month);
+            });
             lastMonth = currentMonth;
             if (calendarProvider.lastClickDateModel == null ||
                 calendarProvider.lastClickDateModel.month != currentMonth) {