How to get all the date of last one month - objective-c

Question

i want to get all the dates from yesterday date to one month..
like today is 19 may, so i need all the date from 18 may to 18 April.
please help.

Answer 1

You can use this code.It works.
NSDate *currentDate = [NSDate date];
NSLog(#"Current Date = %#", currentDate);
NSDateComponents *dateComponents = [NSDateComponents new];
dateComponents.month = -1;
NSDate *currentDatePlus1Month = [[NSCalendar currentCalendar] dateByAddingComponents:dateComponents toDate:currentDate options:0];
NSLog(#"Date = %#", currentDatePlus1Month );
NSCalendar *gregorianCalendar = [[NSCalendar alloc] initWithCalendarIdentifier: NSGregorianCalendar];
NSDateComponents *days = [[NSDateComponents alloc] init];
NSMutableArray* arr =[[NSMutableArray alloc]init];
NSInteger dayCount = 0;
while ( TRUE ) {
[days setDay: ++dayCount];
NSDate *date = [gregorianCalendar dateByAddingComponents: days toDate: currentDatePlus1Month options: 0];
if ( [date compare: currentDate] == NSOrderedAscending ){
[arr addObject:date];
}
if([[arr lastObject] isEqual:[currentDate dateByAddingTimeInterval:-60*60*24*1]])
{
NSLog(#"%lu",(unsigned long)arr.count);
break;
}
// Do something with date like add it to an array, etc.
}
if you find all dates you can remove count and get all dates in array.

Answer 2

To achieve this, I think you should have an Array holding all those dates. I'll write pseudocode about the logic here.
INIT dateArray
NSDate pastDate = (today).yesterday
NSDate lastMonth = pastDate.lastMonth()
WHILE pastDate > lastMonth // pastDate is after lastMonth
dateArray.add(pastDate)
pastDate = pastDate.yesterday
END WHILE
About how to turn this pseudocode into real code is another story (this would be quite long). Hope this help.
PS: If you'd like Objective-C solution, please comment. I'll take my time write it for you ;)