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1870

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4

Hi Guys, How can i get next date using NSDate. Please send me the solution.

regards Jayaraj

+7  A: 

In the following, yourDate represents your input NSDate; nextDate represents the next day.

// start by retrieving day, weekday, month and year components for yourDate
    NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    NSDateComponents *todayComponents = [gregorian components:(NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit) yourDate];
    NSInteger theDay = [todayComponents day];
    NSInteger theMonth = [todayComponents month];
    NSInteger theYear = [todayComponents year];

    // now build a NSDate object for yourDate using these components
    NSDateComponents *components = [[NSDateComponents alloc] init];
    [components setDay:theDay]; 
    [components setMonth:theMonth]; 
    [components setYear:theYear];
    NSDate *thisDate = [gregorian dateFromComponents:components];
    [components release];

    // now build a NSDate object for the next day
    NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
    [offsetComponents setDay:1];
    NSDate *nextDate = [gregorian dateByAddingComponents:offsetComponents toDate: yourDate options:0];
    [offsetComponents release];
    [gregorian release];
unforgiven
Hi, Yeah this code's workingThanks a lot,Do you have any idea about how to get previous day(yesterday)?
Jai
Changing [offsetComponents setDay:1] to be setDay:-1 results in subtracting a day instead of adding
rpetrich
A: 

//Add the below code to init method or viewDidload [[NSUserDefaults standardUserDefaults] setObject:[NSDate date] forKey:@"Date"];

//Add this code where you wanna retrieve next or previous dates NSDate *tomorrow = [[NSUserDefaults standardUserDefaults] valueForKey:@"Date"]; NSTimeInterval secondsPerDay = 24 * 60 * 60;
NSDate *date = [tomorrow addTimeInterval:secondsPerDay]; //Change NSDate *date = [tomorrow addTimeInterval:-secondsPerDay]; for yesterday tomorrow = date; [self setDate:tomorrow]; dateTextField.text = [self getDate]; [[NSUserDefaults standardUserDefaults] setObject:tomorrow forKey:@"Date"];

Jai
Cave: Repeatedly adding secondsPerDay (24 * 60 * 60) with addTimeInterval to an NSDate is done while observing daylight saving time. Adding 24 hours on a day when you enter or leave daylight savin time skews the time of day by +/- 1 hour.
Niels Castle
A: 

what about this methods ?

http://www.drobnik.com/touch/2009/05/adding-days-to-nsdate/

NSDate *now = [NSDate date]; int daysToAdd = 50; // or 60 :-)

// set up date components NSDateComponents *components = [[[NSDateComponents alloc] init] autorelease]; [components setDay:daysToAdd];

// create a calendar NSCalendar *gregorian = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];

NSDate *newDate2 = [gregorian dateByAddingComponents:components toDate:now options:0]; NSLog(@"Clean: %@", newDate2);

Sijo
A: 

I guess this method works just fine for me.

NSString *zajtra = [[NSDate date] dateByAddingTimeInterval:86400];

Vanya