How do I implement previous/next month buttons and show dates for current month?

Question

Scenario:

I have an expense tracking iOS Application and I am storing expenses from a expense detail view controller into a table view (with fetched results controll

Answer 1

Try this:

- (NSDate *)lastDateOfTheMonth
{
    NSCalendar* calendar = [NSCalendar currentCalendar];
    [calendar setTimeZone:[NSTimeZone localTimeZone]];

    NSDateComponents* components = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:firstDateOfTheMonth];
    [components setMonth:[components month]+1];

    NSDateComponents* offset = [[[NSDateComponents alloc] init] retain];
    [offset setDay:-1];

    lastDateOfTheMonth = [[calendar dateByAddingComponents:offset toDate:[components date] options:0] retain];
    return lastDateOfTheMonth;
}