CODEWITHSUNDEEP
iosobjective-cnsnumberformatter
dead_soldier
dead_soldier

Reputation: 429

NsNumberFormatter not giving correct result

I am facing an issue but couldn't seem to find a solution.I have a textfield where user is entering numbers.The issue is that when the user enters last digit as zero after decimal place,it is not taking.e.g. - 42.70 is printed as 42.7.Find the code below

  NSNumberFormatter *_numberFormatter =[NSNumberFormatter new];
     _numberFormatter.maximumFractionDigits=2;
    _numberFormatter.minimumIntegerDigits=1;
    _numberFormatter.roundingMode=kCFNumberFormatterRoundCeiling;
    _numberFormatter.allowsFloats=YES;
    _numberFormatter.groupingSeparator=@",";
    _numberFormatter.usesGroupingSeparator=YES;
    _numberFormatter.groupingSize=3;
   _numberFormatter.minimum=[NSNumber numberWithInt:0];
    [_numberFormatter setLenient:YES];
    [_numberFormatter setUsesSignificantDigits:NO];

and 

NSNumber *number = [nf numberFromString:combinedString];
    NSString *formattedString = [nf stringFromNumber:number];

formatted string is printing the value entered sans 0 if entered in last place but it prints the correct number if any other digit is there like 42.78 is printed as it is but 43.70 is printed as 43.7.

Am i missing setting some parameters.Any help is needed

Thanks in Advance

Upvotes: 0

Views: 282

Answers (3)

dead_soldier
dead_soldier

Reputation: 429

Found out that we have to do manipulations to add a zero from our side.iOS works in a weird way and doesn't allow it.So below is my code.Hope it is helpful for others also.

NSArray *formatArr = [combinedString componentsSeparatedByString:@"."];
    NSString *str = [formatArr lastObject];
    NSString *code;
    if ([str length] >0) {
        code = [[formatArr lastObject] substringFromIndex: [str length] - 1];
        if ([str isEqualToString:@"00"])
        {

        }
        else
        {
            if ([combinedString hasSuffix:@".0"])
            {
                formattedString=[formattedString stringByAppendingString:@".0"];
            }
            else if ([code isEqualToString:@"0"]) {
                formattedString = [formattedString stringByAppendingString:@"0"];
            }
        }
    }
    else
    {
        if ([combinedString hasSuffix:@".0"])
        {
            formattedString=[formattedString stringByAppendingString:@".0"];
        }
    }

Combinedstring is the input user is entering.I am checking for the '.' place and checking if the last digit is zero.If it is,then adding a zero from my own.Now user is able to see 43.50 when he types it instead of 43.5

Upvotes: 0

Martin R
Martin R

Reputation: 540055

Set both

_numberFormatter.maximumFractionDigits = 2;
_numberFormatter.minimumFractionDigits = 2;

if you always want to print two digits after the decimal separator.

Upvotes: 2

Hossam Ghareeb
Hossam Ghareeb

Reputation: 7123

You can use this:

NSNumberFormatter *fmt = [[NSNumberFormatter alloc] init];
[fmt setPositiveFormat:@"0.##"];
NSNumber *n = [NSNumber numberWithFloat:47.78];
NSLog(@"%@", [fmt stringFromNumber:n]);

it will print 47.78

Upvotes: 0

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