ios - iOS - EKEvent 重复规则中的 iCal rRule

Question

我有一个iCal文件rRule： rRule = "FREQ=WEEKLY;UNTIL=20140425T160000Z;INTERVAL=1;BYDAY=TU,TH";

我需要将此信息放入EKEvent：

EKEvent *event;
event.recurrenceRules = ...

我拆分rRule并将其保存在NSArray：

 NSArray * rules = [evento.rRule componentsSeparatedByString:@";"];
 event.recurrenceRules = rules;

但是会出现错误：

-[__NSCFString relationForKey:]: unrecognized selector sent to instance 0x21283350
 *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString relationForKey:]: unrecognized selector sent to instance 0x21283350'

你能帮助我吗？谢谢你的提前。

Answer 1

我找到了使用 EKRecurrenceRule+RRULE 库的解决方案，它非常易于使用。

链接：https ://github.com/jochenschoellig/RRULE-to-EKRecurrenceRule

使用示例：

NSString *rfc2445String = @"FREQ=MONTHLY;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=-2"; // The 2nd to last weekday of the month

// Result
EKRecurrenceRule *recurrenceRule = [[EKRecurrenceRule alloc] initWithString:rfc2445String];
NSLog(@"%@", recurrenceRule);

Answer 2

将字符串拆分为数组时，会得到一个字符串数组。但是该recurrenceRules属性需要一个对象数组EKRecurrenceRule。您必须自己解析字符串并将它们转换为EKRecurrenceRule对象。对于复杂的重复规则，应使用以下方法：

- (id)initRecurrenceWithFrequency:(EKRecurrenceFrequency)type interval:(NSInteger)interval daysOfTheWeek:(NSArray *)days daysOfTheMonth:(NSArray *)monthDays monthsOfTheYear:(NSArray *)months weeksOfTheYear:(NSArray *)weeksOfTheYear daysOfTheYear:(NSArray *)daysOfTheYear setPositions:(NSArray *)setPositions end:(EKRecurrenceEnd *)end

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