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
性能优化

README.md

@@ -19,7 +19,7 @@ Flutter上的一个日历控件，可以定制成自己想要的样子。
 * 支持月份视图和星期视图的展示与切换联动
 
 ## 近期修改
-### [1.0.0] - 2019/9/22
+### [1.0.0] - 2019/10/10
 * 重构日历的代码,进行性能优化
 * 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 
@@ -123,6 +123,9 @@ extraDataMap | 自定义额外的数据| 默认为空Map，Map<DateTime, Object>
 :-: | :-: | :-: 
 weekBarItemWidgetBuilder | 创建顶部的weekbar | 默认样式
 dayWidgetBuilder | 创建日历item | 默认样式
+verticalSpacing|日历item之间的竖直方向间距|默认10
+boxDecoration |整体的背景设置|
+itemSize| 每个item的边长|默认是屏幕宽度/7|
 
 
 ### 事件监听的配置

example/lib/main.dart

@@ -1,3 +1,4 @@
+import 'package:example/only_week_page.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'custom_sign_page.dart';
@@ -33,7 +34,10 @@ class MyApp extends StatelessWidget {
               ),
           "/custom_sign": (context) => CustomSignPage(
                 title: "自定义额外数据，实现标记功能",
-              )
+              ),
+          "/only_week_view": (context) => OnlyWeekPage(
+                title: "仅显示周视图",
+              ),
         },
         title: 'Flutter Demo',
         theme: ThemeData(
@@ -80,6 +84,12 @@ class HomePage extends StatelessWidget {
               },
               child: new Text("自定义额外数据，实现标记功能"),
             ),
+            new RaisedButton(
+              onPressed: () {
+                Navigator.pushNamed(context, "/only_week_view");
+              },
+              child: new Text("仅显示周视图"),
+            ),
           ],
         ),
       ),

example/lib/multi_select_style_page.dart

@@ -43,13 +43,13 @@ class _MultiSelectStylePageState extends State<MultiSelectStylePage> {
     controller.addOnCalendarSelectListener((dateModel) {
       //刷新选择的时间
       selectText.value =
-          "单选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}";
+          "多选模式\n选中的时间:\n${controller.getMultiSelectCalendar().join("\n")}";
     });
 
     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${controller.getSingleSelectCalendar()}");
+        "多选模式\n选中的时间:\n${controller.getSingleSelectCalendar()}");
   }
 
   @override

example/lib/only_week_page.dart

@@ -0,0 +1,101 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_custom_calendar/flutter_custom_calendar.dart';
+
+/**
+ * 默认风格+单选
+ */
+class OnlyWeekPage extends StatefulWidget {
+  OnlyWeekPage({Key key, this.title}) : super(key: key);
+
+  final String title;
+
+  @override
+  _OnlyWeekPageState createState() => _OnlyWeekPageState();
+}
+
+class _OnlyWeekPageState extends State<OnlyWeekPage> {
+  ValueNotifier<String> text;
+  ValueNotifier<String> selectText;
+
+  CalendarController controller;
+
+  @override
+  void initState() {
+    DateTime now = DateTime.now();
+    controller = new CalendarController(
+        minYear: now.year,
+        minYearMonth: now.month - 2,
+        maxYear: now.year,
+        maxYearMonth: now.month + 1,
+        showMode: Constants.MODE_SHOW_ONLY_WEEK);
+
+    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) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(widget.title),
+      ),
+      body: new Container(
+        child: new Column(
+          children: <Widget>[
+            new Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: <Widget>[
+                new IconButton(
+                    icon: Icon(Icons.navigate_before),
+                    onPressed: () {
+//                      controller.moveToPreviousMonth();
+                      controller.previousPage();
+                    }),
+                ValueListenableBuilder(
+                    valueListenable: text,
+                    builder: (context, value, child) {
+                      return new Text(text.value);
+                    }),
+                new IconButton(
+                    icon: Icon(Icons.navigate_next),
+                    onPressed: () {
+//                      controller.moveToNextMonth();
+                      controller.nextPage();
+                    }),
+              ],
+            ),
+            CalendarViewWidget(
+              calendarController: controller,
+            ),
+            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.
+    );
+  }
+}

lib/calendar_provider.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_custom_calendar/cache_data.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';
@@ -78,7 +79,7 @@ class CalendarProvider extends ChangeNotifier {
     return index + 1;
   }
 
-  ValueNotifier<bool> expandStatus = ValueNotifier(true); //当前展开状态
+  ValueNotifier<bool> expandStatus; //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;
@@ -98,12 +99,17 @@ class CalendarProvider extends ChangeNotifier {
         ? selectDateModel
         : DateModel.fromDateTime(DateTime.now())
       ..day = 15;
+    if (calendarConfiguration.showMode == Constants.MODE_SHOW_ONLY_WEEK) {
+      expandStatus = ValueNotifier(false);
+    } else {
+      expandStatus = ValueNotifier(true);
+    }
   }
 
   //退出的时候，清除数据
   void clearData() {
     LogUtil.log(TAG: this.runtimeType, message: "CalendarProvider clearData");
-    CacheData.instance.clearData();
+    CacheData.getInstance().clearData();
     selectedDateList.clear();
     selectDateModel = null;
     calendarConfiguration = null;

lib/controller.dart

@@ -83,6 +83,18 @@ class CalendarController {
       }).toSet());
     }
 
+    LogUtil.log(
+        TAG: this.runtimeType,
+        message: "start:${DateModel.fromDateTime(DateTime(
+          minYear,
+          minYearMonth,
+        ))},end:${DateModel.fromDateTime(DateTime(
+          maxYear,
+          maxYearMonth,
+        ))}");
+
+    if (showMode == Constants.MODE_SHOW_ONLY_MONTH ||
+        showMode == Constants.MODE_SHOW_WEEK_AND_MONTH) {
       //初始化pageController,initialPage默认是当前时间对于的页面
       int initialPage = 0;
       int nowMonthIndex = 0;
@@ -113,26 +125,26 @@ class CalendarController {
       }
       this.monthController =
           new PageController(initialPage: initialPage, keepPage: true);
-    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}");
+    }
 
+    if (showMode == Constants.MODE_SHOW_ONLY_WEEK ||
+        showMode == Constants.MODE_SHOW_WEEK_AND_MONTH) {
       //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 = 0;
       int nowWeekIndex = 0;
       weekList.clear();
-
+      //如果没有配置当前时间，设置成当前的时间
+      if (nowYear == -1 || nowMonth == -1) {
+        nowYear = DateTime.now().year;
+        nowMonth = DateTime.now().month;
+      }
+      DateTime nowTime = new DateTime(nowYear, nowMonth, 15);
       DateTime firstDayOfMonth = DateTime(minYear, minYearMonth, 1);
       //计算第一个星期的第一天的日期
       DateTime firstWeekDate =
@@ -140,17 +152,26 @@ class CalendarController {
 
       DateTime lastDay = DateTime(maxYear, maxYearMonth,
           DateUtil.getMonthDaysCount(maxYear, maxYearMonth));
+      int temp = -1;
       for (DateTime dateTime = firstWeekDate;
           !dateTime.isAfter(lastDay);
           dateTime = dateTime.add(Duration(days: 7))) {
         DateModel dateModel = DateModel.fromDateTime(dateTime);
         weekList.add(dateModel);
+        print("nowTime.isBefore(dateTime)");
+        print("$nowTime,,,,$dateTime");
+
+        if (nowTime.isAfter(dateTime)) {
+          temp++;
         }
-    this.weekController = new PageController();
+      }
+      initialWeekPage = temp;
       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}");
+      this.weekController = new PageController(initialPage: initialWeekPage);
+    }
 
     calendarConfiguration.monthList = monthList;
     calendarConfiguration.weekList = weekList;
@@ -447,7 +468,6 @@ class CalendarController {
     weekList.clear();
     calendarProvider.clearData();
   }
-
 }
 
 /**

lib/widget/calendar_view.dart

@@ -54,13 +54,15 @@ class _CalendarViewWidgetState extends State<CalendarViewWidget> {
           //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()),
+          child: CalendarContainer(widget.calendarController)),
     );
   }
 }
 
 class CalendarContainer extends StatefulWidget {
-  const CalendarContainer();
+  final CalendarController calendarController;
+
+  const CalendarContainer(this.calendarController);
 
   @override
   CalendarContainerState createState() => CalendarContainerState();
@@ -121,6 +123,28 @@ class CalendarContainerState extends State<CalendarContainer>
         });
       });
     }
+
+    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);
+        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;
+          });
+        }
+      }
+    });
   }
 
   @override
@@ -134,40 +158,10 @@ class CalendarContainerState extends State<CalendarContainer>
     //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;
-    totalHeight = itemHeight * 6 + 10 * (6 - 1);
+    if (totalHeight == null) {
-//    return Container(
+      totalHeight = itemHeight * 6 +
-//      child: new Column(
+          calendarProvider.calendarConfiguration.verticalSpacing * (6 - 1);
-//        children: <Widget>[
+    }
-//          /**
-//           * 利用const，避免每次setState都会刷新到这顶部的view
-//           */
-//          calendarProvider.calendarConfiguration.weekBarItemWidgetBuilder(),
-//          AnimatedContainer(
-//            duration: Duration(milliseconds: 200),
-//            width: itemHeight * 7,
-//            height: expand ? totalHeight : itemHeight,
-//            child: expand
-//                ? Container(
-//                    height: totalHeight,
-//                    child: MonthViewPager(),
-//                  )
-//                : Container(
-//                    height: itemHeight,
-//                    child: WeekViewPager(),
-//                  ),
-//          ),
-//        ],
-//      ),
-//    );
-
-//    return Container(
-//      child: AnimatedCrossFade(
-//          firstChild: Container(height: totalHeight, child: MonthViewPager()),
-//          secondChild: Container(height: itemHeight, child: WeekViewPager()),
-//          crossFadeState: state,
-//          duration: Duration(milliseconds: 500)),
-//    );
-
     return Container(
       width: itemHeight * 7,
       child: new Column(
@@ -182,7 +176,6 @@ class CalendarContainerState extends State<CalendarContainer>
               duration: Duration(milliseconds: 500),
               height: expand ? totalHeight : itemHeight,
               child: IndexedStack(
-//                overflow: Overflow.visible,
                 index: index,
                 children: widgets,
               )),

lib/widget/month_view.dart

@@ -194,12 +194,12 @@ class ItemContainerState extends State<ItemContainer> {
             return;
           }
 
-          configuration.calendarSelect(dateModel);
           if (calendarProvider.selectedDateList.contains(dateModel)) {
             calendarProvider.selectedDateList.remove(dateModel);
           } else {
             calendarProvider.selectedDateList.add(dateModel);
           }
+          configuration.calendarSelect(dateModel);
 
           //多选也可以弄这些单选的代码
           calendarProvider.selectDateModel = dateModel;