从iOS sdk中获取日期 [英] Get the Day from the date in iOS sdk

问题描述

在我的应用中，希望从该日期获得当天（即星期日，星期一等） 。

In my app, want to get the day (i.e. Sunday, Monday,etc.) from the date.

我的代码如下：

NSDate *currentDate = [NSDate date];
    NSCalendar *calendar = [NSCalendar currentCalendar];

    //ask for current week
    NSDateComponents *comps = [[NSDateComponents alloc] init];
    comps=[calendar components:NSWeekCalendarUnit|NSYearCalendarUnit fromDate:currentDate];
    //create date on week start
    NSDate* weekstart=[calendar dateFromComponents:comps];

    //add 7 days
    NSMutableArray* week=[NSMutableArray arrayWithCapacity:7];
    for (int i=1; i<=7; i++) {
        NSDateComponents *compsToAdd = [[NSDateComponents alloc] init];
        compsToAdd.day=i;
        NSDate *nextDate = [calendar dateByAddingComponents:compsToAdd toDate:weekstart options:0];
        NSLog(@"%@",nextDate);  // date is 2013-06-30 18:30:00 +0000



        NSDateFormatter *myFormatter = [[NSDateFormatter alloc] init];
        [myFormatter setDateFormat:@"EEEE"]; // day, like "Saturday"
        //[myFormatter setDateFormat:@"c"]; // day number, like 7 for saturday

        NSString *dayOfWeek = [myFormatter stringFromDate:nextDate];

问题

        NSLog(@"Today is: %@", dayOfWeek);  // Prints Mondays instead of Sunday
    }

我该如何解决这个问题？

推荐答案

 NSCalendar* calender = [NSCalendar currentCalendar];

 NSDateComponents* component = [calender components:NSWeekdayCalendarUnit fromDate:[NSDate date]];

int weekDay = [component weekday];

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
NSString *weekdayString = [[formatter weekdaySymbols] objectAtIndex:weekDay - 1];

NSLog(@"Day ::: %@", weekdayString);

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