Don’t lose even last zero of decimal value

Question

Currently I have string inputs that look like: 16904.48, 9324.00, 6806.10

I want my client to output: 16,904.48, 9,324.00, 6806.10

I have written the following code:

-(NSString*)methodChangeNumberFormat:(NSString*)strGivenValue {

    NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
    [numberFormatter setNumberStyle:NSNumberFormatterDecimalStyle];

    NSNumber *nsNumTmp = [numberFormatter numberFromString:strGivenValue];

    NSString *strNumFormatted = [numberFormatter stringFromNumber:nsNumTmp];
    strNumFormatted = [NSString stringWithFormat:@"$%@",strNumFormatted];
    NSLog(@"formattedNumberString: %@", strNumFormatted);

    return strNumFormatted;
}

Result: 16,904.48, 9,324, 6,806.1

But this isn't what I want, please help me to get expected result.

Now, am following input as NSString. But I am ready to change the input to any data type.

Answer 1

There is a number formatter style that does what it looks like you're trying to accomplish. Try using NSNumberFormatterCurrencyStyle.

- (NSString *)methodChangeNumberFormat:(NSString*)strGivenValue {
    NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];

    // Set decimal style and read given value
    [numberFormatter setNumberStyle:NSNumberFormatterDecimalStyle];
    NSNumber *numberFromString = [numberFormatter numberFromString:strGivenValue];

    // Set currency style and produce formatted value
    [numberFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
    NSString *strNumFormatted = [numberFormatter stringFromNumber:numberFromString];
    NSLog(@"formattedNumberString: %@", strNumFormatted);

    return strNumFormatted;
}

Output:

formattedNumberString: $16,904.48
formattedNumberString: $9,324.00
formattedNumberString: $6,806.10