CODEWITHSUNDEEP
iospaddingnumber-formatting
Akhilesh Sharma
Akhilesh Sharma

Reputation: 1628

Formatting a number in ios

I am trying to find a solution to add zeros in the beginning of the number as per the total input provided.

Example: Number = 100 Total Number of digits = 3

The kind of format i will like to have is 001,002,003 and so on.

Thanks

I found out the solution for the same. Posting it below:

 while (totalNumCopy) {
        totalNumCopy = totalNumCopy/10;
        noOfDigits++;
    }

    NSMutableString *thumbName = nil;
    if(noOfDigits > 0)
    {
        NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
        [formatter setFormatWidth:noOfDigits];
        [formatter setPaddingCharacter:@"0"];
        [formatter setNumberStyle: NSNumberFormatterPadBeforePrefix];
        NSString *stringNumber = [formatter stringFromNumber:[NSNumber numberWithInt:i+1]];
        thumbName = [NSString stringWithFormat:@"PageThumb%@.png",stringNumber];
        [formatter release];
    }

Upvotes: 0

Views: 761

Answers (2)

holex
holex

Reputation: 24041

the basic string formatter is like this:

NSLog(@"%03d, %03d, %03d", 1, 2, 3);

the result would be:

001, 002, 003

maybe it helps on you.

Upvotes: 4

Vinodh
Vinodh

Reputation: 5268

NSString *myNumber = [NSString stringWithFormat:@"%03d", number];

i think the above code will help you

Upvotes: 2

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