Question

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

我需要将此信息放在EKEvent：

中

EKEvent *event;
event.recurrenceRules = ...

我将rRule拆分并保存在NSArray：

中

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

但是出现错误：

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

你能帮帮我吗？谢谢你提前。

Answer 1

我使用EKRecurrenceRule + RRULE库找到了解决方案，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recurrenceRules属性需要一组EKRecurrenceRule个对象。您必须自己解析字符串并将其转换为EKRecurrenceRule个对象。以下方法应用于复杂的重复规则：

- (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

请参阅文档here

iOS - 在EKEvent重复规则中的iCal rRule

2 个答案: