日期  时间   星期几

 

//日期    NSDateFormatter *dateFormatter2 = [[NSDateFormatter alloc]init];    [dateFormatter2 setDateFormat:@"yyyy年MM月dd日"];    NSString *date = [dateFormatter2 stringFromDate:[NSDate date]];   NSString *week = [self getChineseCalendarWithDate:[NSDate date]];    self.timer = [[GCDTimer alloc] initInQueue:[GCDQueue mainQueue]];    [self.timer event:^{        [self updateTime];    } timeInterval:NSEC_PER_SEC  delay:0];        [self.timer start];}-(void)updateTime{    //时间    NSDateFormatter *dateFormatter1 = [[NSDateFormatter alloc]init];    [dateFormatter1 setDateFormat:@"HH:mm:ss"];    NSString *time = [dateFormatter1 stringFromDate:[NSDate date]];    }

//星期几 - (NSString*)getChineseCalendarWithDate:(NSDate *)date{

    NSArray *weekDays=[NSArray arrayWithObjects:

 

                       @" ",@"星期日",@"星期一",@"星期二", @"星期三", @"星期四", @"星期五", @"星期六", @" ",nil];

 

    NSCalendar *localeCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierChinese];

 

    NSInteger weekDayFlag = [localeCalendar ordinalityOfUnit:NSCalendarUnitWeekday inUnit:NSCalendarUnitWeekOfMonth forDate:date];

 

    NSString *weekDay = [NSString stringWithFormat:@"%@",weekDays[weekDayFlag] ];

 

    return weekDay;

}

GCDTimer 一个附件GCD