Show next/previous date on button click - ios

Question

I have 2 button, one for increase the current date and one for decrease the date, so can you tell me how can I manage it I have using to show the current date in textfield by this way:
NSDateFormatter *dateformate=[[NSDateFormatter alloc]init];
[dateformate setDateFormat:#"dd/MM/YYYY"];
date_String=[dateformate stringFromDate:[NSDate date]];
_dateTF.text = date_String;

Answer 1

NSDate *decreaseDate= [NSDate dateWithTimeInterval:-60 * 60 * 24 sinceDate:<somedate>];
NSDate *inceraseDate= [NSDate dateWithTimeInterval:60 * 60 * 24 sinceDate:<somedate>];
The above code snippet will helps you to get the previous and next date.

Answer 2

You can use this code,
//This code will give you next date from current date
NSDate *today = [[NSDate alloc] init];
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
[offsetComponents setDay:1]; // you can change this as per your requirement, this will increase +1 date
NSDate *nextDate = [gregorian dateByAddingComponents:offsetComponents toDate:today options:0];
// This code will give previous date from current date
NSDate *today1 = [[NSDate alloc] init];
NSCalendar *gregorian1 = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *offsetComponents1 = [[NSDateComponents alloc] init];
[offsetComponents1 setDay:-1]; // you can change this as per your requirement, this will decrease -1 date
NSDate *previousDate = [gregorian1 dateByAddingComponents:offsetComponents1 toDate:today1 options:0];
You can change date formate, with you desire date format. Hope this helps.
Happy coding.