我想保存提醒,但是当我设置 StartDateComponents 时,它总是显示日期组件无效。我尝试了多种方法(你可以看到我的注释代码)来设置该值,但失败了。
EKReminder *reminder = [EKReminder reminderWithEventStore:appDelete.eventStore];
NSCalendar *gregorian = [NSCalendar currentCalendar];//[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
reminder.title = @"title";
NSString *timeStr = @"20121115070800";
NSDateFormatter *inputFormatter = [[NSDateFormatter alloc] init];
[inputFormatter setCalendar:gregorian];
[inputFormatter setDateFormat:@"yyyyMMddHHmmss"];
[inputFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"UTC"]];
NSDate *parseDate = [inputFormatter dateFromString:timeStr];
NSDateComponents *dateComponents = [gregorian components:( NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit )
fromDate:parseDate];
NSDateComponents *timeComponents = [gregorian components:( NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit )
fromDate:parseDate];
NSDateComponents *dateComps = [[NSDateComponents alloc] init];
[dateComps setDay:[dateComponents day]];
[dateComps setMonth:[dateComponents month]];
[dateComps setYear:[dateComponents year]];
[dateComps setHour:[timeComponents hour]];
// Notification will fire in one minute
[dateComps setMinute:[timeComponents minute]];
[dateComps setSecond:[timeComponents second]];
[dateComps setTimeZone:[NSTimeZone localTimeZone]];
reminder.calendar = /*[NSCalendar autoupdatingCurrentCalendar];*/[eventStore defaultCalendarForNewEvents];
reminder.calendar = [EKCalendar calendarWithEventStore:eventStore];
//NSDateComponents *comp = [[NSDateComponents alloc] init];
/*comp.calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
comp.year = [[timeStr substringToIndex:3] integerValue];
comp.month = [[timeStr substringWithRange:NSMakeRange(4,2)] integerValue];
comp.day = [[timeStr substringWithRange:NSMakeRange(6, 2)] integerValue];
comp.hour = [[timeStr substringWithRange:NSMakeRange(8, 2)] integerValue];
comp.minute = [[timeStr substringWithRange:NSMakeRange(10, 2)] integerValue];
comp.second = [[timeStr substringWithRange:NSMakeRange(12, 2)] integerValue];*/
//reminder.startDateComponents = [gregorian components: (NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit/*|NSHourCalendarUnit|NSMinuteCalendarUnit|NSSecondCalendarUnit*/) fromDate:parseDate];
[reminder setStartDateComponents:dateComps];// this line will throw the error:Invalid date component
最佳答案
看来主要问题是这两行:
reminder.calendar = /*[NSCalendar autoupdatingCurrentCalendar];*/[eventStore defaultCalendarForNewEvents];
reminder.calendar = [EKCalendar calendarWithEventStore:eventStore];
替换为这一行:
reminder.calendar = [eventStore defaultCalendarForNewReminders];
以下是完整的工作代码,其中还包含一些额外的内容以确保完整性:
EKEventStore *eventStore = [[EKEventStore alloc] init];
[eventStore requestAccessToEntityType:EKEntityMaskEvent completion:^(BOOL granted, NSError *error) {
if (granted)
{
EKReminder *reminder = [EKReminder reminderWithEventStore:eventStore];
NSCalendar *gregorian = [NSCalendar currentCalendar];//[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
reminder.title = @"title44433333";
NSString *timeStr = @"20121115070800";
NSDateFormatter *inputFormatter = [[NSDateFormatter alloc] init];
[inputFormatter setCalendar:gregorian];
[inputFormatter setDateFormat:@"yyyyMMddHHmmss"];
[inputFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"UTC"]];
NSDate *parseDate = [inputFormatter dateFromString:timeStr];
NSDateComponents *dateComponents = [gregorian components:( NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit )
fromDate:parseDate];
NSDateComponents *timeComponents = [gregorian components:( NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit )
fromDate:parseDate];
NSDateComponents *dateComps = [[NSDateComponents alloc] init];
[dateComps setDay:[dateComponents day]];
[dateComps setMonth:[dateComponents month]];
[dateComps setYear:[dateComponents year]];
[dateComps setHour:[timeComponents hour]];
// Notification will fire in one minute
[dateComps setMinute:[timeComponents minute]];
[dateComps setSecond:[timeComponents second]];
[dateComps setTimeZone:[NSTimeZone localTimeZone]];
reminder.calendar = [eventStore defaultCalendarForNewReminders]; //here is the replacement
[reminder setStartDateComponents:dateComps];// this line will throw the error:Invalid date component
NSError *error = nil;
[eventStore saveReminder:reminder commit:YES error:&error];
if (error) NSLog(@"error = %@", error);
}
}];
关于iphone - 在 EKReminder 中设置 startDateComponents 时出现 "Invalid date component"错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/13392942/