dependencies:
  mini_calendar: ^2.0.0

import 'package:mini_calendar/mini_calendar.dart';

MonthWidget();// 默认当月

MonthWidget(
  controller: MonthController.init(
      MonthOption<String>(
        currentDay: DateDay.now().copyWith(month: index + 1, day: Random().nextInt(27) + 1),
        currentMonth: DateMonth.now().copyWith(month: index + 1),
      )
  ),
)

MonthWidget(
  controller: MonthController.init(MonthOption(
    currentMonth: DateMonth.now().copyWith(month: 1),
    enableContinuous: true,
    firstSelectDay: DateDay.now().copyWith(month: 1, day: 8),
    secondSelectDay: DateDay.now().copyWith(month: 1, day: 18),
  )),
)

MonthWidget(
  controller: MonthController.init(MonthOption(
    currentMonth: DateMonth.now().copyWith(month: 1),
    enableMultiple: true,
    multipleDays: [
            DateDay.now().copyWith(month: 1, day: 3),
            DateDay.now().copyWith(month: 1, day: 5),
            DateDay.now().copyWith(month: 1, day: 8),
          ],
  )),
)

MonthPageView<T>(
  padding: EdgeInsets.all(1),
  scrollDirection: Axis.horizontal,// 水平滑动或者竖直滑动
  option: MonthOption<T>(
    enableContinuous: true,// 单选、连选控制
    marks: { 
      DateDay.now().copyWith(day: 1): '111',
      DateDay.now().copyWith(day: 5): '222',
      DateDay.now().copyWith(day: 13): '333',
      DateDay.now().copyWith(day: 19): '444',
      DateDay.now().copyWith(day: 26): '444',
    },
  ),
  showWeekHead: true, // 显示星期头部
  onContinuousSelectListen: (DateDay？firstDay,DateDay？endFay) {
  },// 连选回调
  onMultipleSelectListen: (list) {
  },// 多选回调
  onMonthChange: (month) {
  },// 月份更改回调
  onDaySelected: (DateDay day, T? markData, bool enable) {
    // enable : 是否是可选日期
  },// 日期选中会迪欧啊
  onCreated: (controller){
  }, // 控制器回调
  onClear: () {
  }// 点击清空按钮，设置为空时不显示清空按钮
),

MonthOption({
    DateDay currentDay,//选择的日期
    DateMonth currentMonth,//当前月份
    int firstWeek = 7,//第一列显示的星期 [1,7]
    DateDay firstSelectDay,//连选第一个日期
    DateDay secondSelectDay,//连选第二个日期
    bool enableContinuous = false,//是否支持连选
    Map<DateDay, T> marks = const {},//标记
    List<DateDay>? multipleDays, // 多选日期
    List<DateDay>? enableDays, // 能选择的日期集合
    bool enableMultiple = false,//是否支持多选
    DateDay minDay,//可选的最小日期
    DateDay maxDay,//可选的最大日期
  });

MonthPageController#dispose();

MonthPageController#reLoad();

MonthPageController#next();

MonthPageController#last();

MonthPageController#goto(DateMonth month);

buildMonthBackground: (_, width, height, month) => Image.network(
    'https://ssyerv1.oss-cn-hangzhou.aliyuncs.com/picture/b0c57bd90abd49d59920924010ab66a9.png!sswm',
    height: height,
    width: width,
    fit: BoxFit.cover,
    ),

buildMonthHead: (ctx, width, height, month) => Container(
padding: EdgeInsets.all(5),
child: Row(
  mainAxisAlignment: MainAxisAlignment.start,
  children: <Widget>[
    Text(
      "${month.year}年",
      style: TextStyle(fontSize: 40, color: Colors.white),
    ),
    Container(
      margin: EdgeInsets.only(left: 5, right: 5),
      width: 1,
      color: Colors.yellow,
      height: 50,
    ),
    Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: <Widget>[
        Text(
          "${month.month}月",
          style: TextStyle(fontSize: 18, color: Colors.orange),
        ),
        Text("这是一个自定义的月头部"),
      ],
    )
  ],
),
),