Question

I’m diving into iOS development and the Objective C language and am building an alarm clock app to become familiar with the SDK and language. I have an NSString object that represents a time, with the range "1:00 am" to "12:59 am". I need to convert this NSString into two NSInteger‘s that contain the hour value and minute value. As I’m doing this, I’m finding the NSString manipulation that I’m doing to be extremely laborious and it just feels like sloppy code.

Is there a simple way to extract the hour and minute characters from a NSString representation of a time value and store their numerical values in two NSInteger‘s?

Thanks in advance for all your help! I’m gonna get back to it…

Answer 1

NSScanner* timeScanner=[NSScanner scannerWithString:...the time string...];
int hours,minutes;
[timeScanner scanInt:&hours];
[timeScanner scanString:@":" intoString:nil]; //jump over :
[timeScanner scanInt:&minutes];

NSLog(@"hours:%d minutes:%d",hours,minutes);