CODEWITHSUNDEEP
iphoneiosnsdate
Yan
Yan

Reputation: 3616

How to check if the date is in range with out having a year set in objective C

Is there a way to check if NSDate object is in the range of month day with out having a year set in range. For example I have NSDate eqaual to February 2 1956 and I want find out if that date is in range between January 10 and February 10 within any year.

Thank you in advance!

Upvotes: 0

Views: 187

Answers (4)

thvanarkel
thvanarkel

Reputation: 1611

You can use NSDateComponents for this

    NSDate *date = [NSDate date];
    // setting units we would like to use in future
    unsigned units = NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit | NSWeekdayCalendarUnit;
    // creating NSCalendar object
    NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    // extracting components from date
    NSDateComponents *components = [calendar components:units fromDate:date];

    if (components.month <= 2 && components.month >= 1) {
         if (components.month == 2) {
                if (components.day <= 10) {
                       // Date is in range
                }
         } else if (components.month == 2) {
                if (components.day >= 10) {
                       // Date is in range
         }
    }

Upvotes: 0

gschandler
gschandler

Reputation: 3208

Use NSCalendar and NSDateComponents.

e.g.

// Assuming 'data' is a valid NSDate object
NSDateComponents *components = [[NSCalendar currentCalendar] components:NSMonthCalendarUnit+NSDayCalendarUnit fromDate:date];
NSInteger day = components.day;
NSInteger month = components.month;
if ( (month>=startMonth && month<=endMonth) && (day>=startMonthDay && day<=endMonthDay)) {
// do your stuff
}

Upvotes: 1

Richard J. Ross III
Richard J. Ross III

Reputation: 55563

You should use NSDate's -compare message, or, use -timeIntervalSince1970

NSDate *startRange;
NSDate *endRange;

// method one
if (([myDate compare:startRange] > 0) &&  ([myDate compare:endRange] < 0))
{
    // execute code here
}

// method two
if (myDate.timeIntervalSince1970 > startRange.timeIntervalSince1970 && 
    myDate.timeIntervalSince1970 < endRange.timeIntervalSince1970)
{
     // execute code here
}

Upvotes: 1

Elfred
Elfred

Reputation: 3851

You can get the current NSCalendar instance and use the components:forDate: method, then extract the month and date components from the resulting NSDateComponents object.

Upvotes: 0

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