|
|
import 'package:flutter_custom_calendar/utils/date_util.dart';
|
|
|
import 'package:flutter_custom_calendar/utils/lunar_util.dart';
|
|
|
|
|
|
/**
|
|
|
* 日期的实体类
|
|
|
*/
|
|
|
class DateModel {
|
|
|
int? year;
|
|
|
int? month;
|
|
|
int day = 1;
|
|
|
|
|
|
List<int?> lunar = [];
|
|
|
|
|
|
// List<int> get lunar {
|
|
|
// if (lunar?.isNotEmpty == false) {
|
|
|
// return lunar;
|
|
|
// }
|
|
|
//// return LunarUtil.solarToLunar(year, month, day);
|
|
|
// }
|
|
|
|
|
|
//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(lunarYear, lunarMonth, lunarDay);
|
|
|
|
|
|
bool? isCurrentMonth; //是否是当前月份
|
|
|
|
|
|
Object? extraData; //自定义的额外数据
|
|
|
|
|
|
bool isInRange = false; //是否在范围内,比如可以实现在某个范围外，设置置灰的功能
|
|
|
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() {
|
|
|
return 'DateModel{year: $year, month: $month, day: $day}';
|
|
|
} //如果是闰月，则返回闰月
|
|
|
|
|
|
//转化成DateTime格式
|
|
|
DateTime getDateTime() {
|
|
|
return new DateTime(year!, month!, day);
|
|
|
}
|
|
|
|
|
|
//根据DateTime创建对应的model，并初始化农历和传统节日等信息
|
|
|
static DateModel fromDateTime(DateTime dateTime) {
|
|
|
DateModel dateModel = new DateModel()
|
|
|
..year = dateTime.year
|
|
|
..month = dateTime.month
|
|
|
..day = dateTime.day;
|
|
|
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;
|
|
|
}
|
|
|
|
|
|
@override
|
|
|
bool operator ==(Object other) =>
|
|
|
identical(this, other) ||
|
|
|
other is DateModel &&
|
|
|
runtimeType == other.runtimeType &&
|
|
|
year == other.year &&
|
|
|
month == other.month &&
|
|
|
day == other.day;
|
|
|
|
|
|
@override
|
|
|
int get hashCode => year.hashCode ^ month.hashCode ^ day.hashCode;
|
|
|
|
|
|
//是否是同一天
|
|
|
bool isSameWith(DateModel dateModel) {
|
|
|
return year == dateModel.year &&
|
|
|
month == dateModel.month &&
|
|
|
day == dateModel.day;
|
|
|
}
|
|
|
|
|
|
//是否在某天之后
|
|
|
bool isAfter(DateModel dateModel) {
|
|
|
return this.getDateTime().isAfter(dateModel.getDateTime());
|
|
|
}
|
|
|
|
|
|
//是否在某天之前
|
|
|
bool isBefore(DateModel dateModel) {
|
|
|
return this.getDateTime().isBefore(dateModel.getDateTime());
|
|
|
}
|
|
|
}
|
|
|
|
|
|
class X {
|
|
|
var _y;
|
|
|
|
|
|
get y => null == _y ? initY() : _y;
|
|
|
|
|
|
initY() {
|
|
|
//do some computation
|
|
|
_y = "result";
|
|
|
}
|
|
|
}
|
