CODEWITHSUNDEEP
iosxcode
Stackie
Stackie

Reputation: 183

NSLog minutes and seconds of NSDateComponents - How to display leading zeros?

I really need help. The code result is 2:0:0 while the format is set to hh:mm:ss. I want the result to be 2:00:00 (adding 0 in front of the minutes and seconds when they are under 10). 

NSDateFormatter *test = [[NSDateFormatter alloc] init];
[test setDateFormat:@"HH:mm:ss"];
NSDate *date1 = [test dateFromString:@"18:00:00"];
NSDate *date2 = [test dateFromString:@"20:00:00"];
NSCalendar* gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
unsigned int uintFlags =  NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;
NSDateComponents* differenceComponents = [gregorian components:uintFlags fromDate:date1 toDate:date2 options:0];

NSLog(@"%d:%d:%d",[differenceComponents hour],[differenceComponents minute],[differenceComponents second]);

How to do this?

Upvotes: 4

Views: 1169

Answers (2)

Anne
Anne

Reputation: 27073

Log using the %02ld specifier, for example:

NSLog(@"%ld:%02ld:%02ld",[differenceComponents hour],[differenceComponents minute],[differenceComponents second]);

Output:

2:00:00

Additionally create NSStrings like this:

NSString *theString = [NSString stringWithFormat:@"%ld:%02ld:%02ld",[differenceComponents hour],[differenceComponents minute],[differenceComponents second]];
NSLog(@"%@",theString);

Upvotes: 6

arnoapp
arnoapp

Reputation: 2506

The Problem is: 00-00 is 0. I used to have the problem and solved it like this

-(NSString*)formatIntToString:(int)inInt{
if (inInt <10) {
    NSString *theString = [NSString stringWithFormat:@"0%d",inInt];
    return theString;
}
else {
    NSString *theString = [NSString stringWithFormat:@"%d",inInt];
    return theString;
}}

Use it like this in your NSLog:

NSLog(@"%@:%@:%@",[self formatIntToString:[differenceComponents hour]],[self formatIntToString:[differenceComponents minute]],[self formatIntToString:[differenceComponents second]]);

Upvotes: 0

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