iphone - 如何使用 NSCalendar 获取星期几？

Question

我想获取星期几，最好是 1 到 7 之间的整数...这可能吗？

这就是我目前必须获取当前小时、分钟和秒的信息......

NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponents = [gregorian components:(NSHourCalendarUnit  | NSMinuteCalendarUnit | NSSecondCalendarUnit ) fromDate:[NSDate date]];

NSInteger hour = [dateComponents hour];
NSInteger minute = [dateComponents minute];
NSInteger second = [dateComponents second];

Answer 1

你可以使用这个:

NSDateComponents *weekdayComponents =[gregorian components:NSWeekdayCalendarUnit fromDate:myDate];

NSInteger weekday = [weekdayComponents weekday];

或者与您已有的代码集成:

NSDateComponents *dateComponents = [gregorian components:(NSHourCalendarUnit  | NSMinuteCalendarUnit | NSSecondCalendarUnit | NSWeekdayCalendarUnit) fromDate:[NSDate date]];

NSInteger weekday = [dateComponents weekday];

这将为您提供值 1 .. 7，其中 1 是星期日。

希望有帮助。