How to get days in a week from today in objective c

Question

I am trying to get the days of a week in reference to their date. Ex.: 14th October is a Wednesday. I am creating a collection view cell and displaying the date as follows.

In the 14th cell it would display Wednesday, but how to get the next day as Thursday, then Friday...and so on.

I have got todays date and which day it is as follows,

day = [components day];
week = [components month];
year = [components year];
weekday = [components weekday];
NSString *string = [NSString stringWithFormat:@"%ld.%ld.%ld", (long)day, (long)week, (long)year];
NSLog(@"%@",string);
NSDate *todayDate = [NSDate date]; // get today date
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"EEEE"];
NSString *convertedDateString = [dateFormatter stringFromDate:todayDate];// here convert date in
NSLog(@"Today formatted date is %@",convertedDateString);

And i have found this method online, which returns the days in string when you pass the integer, but i am having trouble in this too, not understanding which integer to pass every time so I get different strings.

static inline NSString *stringFromWeekday(int weekday){
static NSString *strings[] = {
    @"Sunday",
    @"Monday",
    @"Tuesday",
    @"Wednesday",
    @"Thursday",
    @"Friday",
    @"Saturday",
};

return strings[weekday];

}