Format The NSNumber in Objective C - iphone

How can I convert NSNumber "1234567 " to "12,34,567"?
I have used the NSNumberFormatter for this,but couldn't get the desired result.
I am doing like this
NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
[formatter setNumberStyle:NSNumberFormatterDecimalStyle];
NSString *formattedString = [formatter stringFromNumber:[NSNumber numberWithFloat:1234567]];
NSLog(#":%#",formattedString);
Output: 1,234,567
Desired Output: 12,34,567


NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
[numberFormatter setPositiveFormat:#"##,##,###"];
NSString *formattedNumberString = [numberFormatter
stringFromNumber:[NSNumber numberWithFloat:1234567]];
NSLog(#"formattedNumberString: %#", formattedNumberString);
[numberFormatter release];


NSNumber *number = [NSNumber numberWithInteger:1234567];
NSNumberFormatter *formatter = [NSNumberFormatter new];
[formatter setNumberStyle:NSNumberFormatterDecimalStyle];
NSLog(#"%#", [formatter stringFromNumber:number]);
[formatter release];

Related

Currency Formatter for different Locale in iOS

I want to convert this String: 1000000 to following format: 10,00,000 but, I am getting output like this : 1,000,000 which is wrong. I need 10,00,000.
My Code :
NSString *newString = [textField.text stringByReplacingCharactersInRange:range withString:string];
inputnumber = newString;
NSNumberFormatter* formatter = [[NSNumberFormatter alloc] init];
[formatter setNumberStyle:NSNumberFormatterCurrencyStyle];
[formatter setCurrencySymbol:#""];
[formatter setMaximumFractionDigits:2];
[formatter setMinimumFractionDigits:2];
[formatter setUsesGroupingSeparator:YES];
[formatter setCurrencyGroupingSeparator:#","];
// [formatter setCurrencyDecimalSeparator:#"."];
[formatter setGroupingSeparator:#","];
NSNumber *num = [NSNumber numberWithDouble:[inputnumber doubleValue]];
inputnumber = [formatter stringFromNumber:num];

It's an Indian Currency Format. So, you have to set #"en_IN" as currencyFormatter Locale.
Working Code :
NSNumberFormatter *currencyFormatter = [[NSNumberFormatter alloc] init];
[currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
[currencyFormatter setCurrencySymbol:#""];
[currencyFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:#"en_IN"] autorelease]];
NSLog(#"Final Value :: %#", [currencyFormatter stringFromNumber:[NSNumber numberWithFloat:1000000]]);

For Swift check this:
let initalValue:NSString = "1000000"
let currencyFormatter = NSNumberFormatter()
currencyFormatter.numberStyle = NSNumberFormatterStyle.CurrencyStyle
currencyFormatter.locale = NSLocale (localeIdentifier: "en_IN")
let formattedValue = currencyFormatter.stringFromNumber(initalValue.doubleValue)
print(formattedValue)

Custom Number Pad with $ sign

Okay so I have a custom number pad that works and shows numbers as 0.00 in a label (numberField), now i need it to show $0.00.
NSString *digit = sender.currentTitle;
numberField.text = [numberField.text stringByAppendingString:digit];
NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
[numberFormatter setNumberStyle:NSNumberFormatterDecimalStyle];
[numberFormatter setGroupingSeparator:#""];
[numberFormatter setMaximumIntegerDigits:4];
[numberFormatter setMaximumFractionDigits:2];
[numberFormatter setMaximumFractionDigits:2];
numberField.text = [numberField.text stringByReplacingOccurrencesOfString:#"." withString:#""];
NSDecimalNumber *currency = [[NSDecimalNumber decimalNumberWithString:numberField.text] decimalNumberByDividingBy: [NSDecimalNumber decimalNumberWithString:#"100"]];
NSString *numberFieldFormat = [numberFormatter stringFromNumber:currency];
numberField.text = numberFieldFormat;
I tried a $%1.2f but it crashes because it does not recognize the $ sign as a number.
Can someone help me out here? Or have a better way of making a custom pad with $ sign?
**Edit
I'm considering making numberField a hidden label (alpha 0) and placing a copy (numberField2) directly on top and running it through stringWithFormat. It works but i thought there may be a cleaner way of doing it.

You don't want it to show $0.00. What if I'm in the UK? Wouldn't I then want it to show £0.00?
It looks like you're incorrectly using the NSNumberFormatter. Here's how you format a number for currency:
NSNumberFormatter *f = [[NSNumberFormatter alloc] init];
[f setNumberStyle:NSNumberFormatterCurrencyStyle];
NSString *string = [f stringFromNumber:[NSNumber numberWithFloat:1234.56]];
[f release];
That will format things correctly, regardless of your locale. It'll use the correct currency sign, the correct thousands separator, and the correct decimal separator. Attempting to recreate this functionality yourself is a Bad Idea™.

Try this:
NSString *digit = sender.currentTitle;
numberField.text = [numberField.text stringByAppendingString:digit];
NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
[numberFormatter setNumberStyle:NSNumberFormatterDecimalStyle];
[numberFormatter setGrouping Separator:#""];
[numberFormatter setMaximumIntegerDigits:4];
[numberFormatter setMaximumFractionDigits:2];
[numberFormatter setMaximumFractionDigits:2];
numberField.text = [numberField.text stringByReplacingOccurrencesOfString:#"." withString:#""];
numberField.text = [numberField.text stringByReplacingOccurrencesOfString:#"$" withString:#""];
NSDecimalNumber *currency = [[NSDecimalNumber decimalNumberWithString:numberField.text] decimalNumberByDividingBy: [NSDecimalNumber decimalNumberWithString:#"100"]];
NSString *numberFieldFormat = [numberFormatter stringFromNumber:currency];
numberField.text = [NSString stringWithFormat:#"$%#", numberFieldFormat];

From my understanding you just want to append a $ to your string. You could do something like this..
....
NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
[numberFormatter setNumberStyle:NSNumberFormatterDecimalStyle];
[numberFormatter setGrouping Separator:#""];
[numberFormatter setMaximumIntegerDigits:4];
[numberFormatter setMaximumFractionDigits:2];
[numberFormatter setMaximumFractionDigits:2];
NSDecimalNumber *currency = [[NSDecimalNumber decimalNumberWithString:numberField.text] decimalNumberByDividingBy: [NSDecimalNumber decimalNumberWithString:#"100"]];
NSString *formatted = [[currency stringValue] stringByReplacingOccurrencesOfString:[currency stringValue] withString:[NSString stringWithFormat:#"$%#",[currency stringValue]]];
NSLog(#"%#", formatted); // Prints $0.00
Or Am I misunderstanding your question?

How to convert a NSString number to a 3 digit percentage value?

I have a NSString that has the following number 0.871 and I'm trying to convert this to display like so 87.1%
I tried to use NSNumberFormatter to get that result but I can't get it to display 3 digits. What's the best way to achieve this result? Thanks.
NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
[formatter setNumberStyle:NSNumberFormatterPercentStyle];
NSNumber *number = [formatter numberFromString:inputString];
[formatter release];

NSString * str = #"0.863";
NSString * newStr = [NSString stringWithFormat:#"%.1f%%", [str floatValue]*100];

If you're trying to convert a string to a number, then format the number:
NSDecimalNumber *number = [NSDecimalNumber decimalNumberWithString:inputString];
NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
[formatter setNumberStyle:NSNumberFormatterPercentStyle];
NSString *formattedString = [formatter stringFromNumber:number];
[formatter release];
If you just want to turn "0.871" into the number 87.1:
NSDecimalNumber *number = [NSDecimalNumber decimalNumberWithString:inputString];
NSDecimalNumber *percentNumber = [number decimalNumberByMultiplyingByPowerOf10:2];

Just use setMinimumFractionDigits:
NSNumber *myNumber = [NSNumber numberWithFloat:0.871];
NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
[formatter setNumberStyle:NSNumberFormatterPercentStyle];
[formatter setMinimumFractionDigits:1];
NSLog(#"%#", [formatter stringFromNumber:myNumber]); // 87.1%
this also ensures that percentages are formatted appropriately for the locale.

Convert NSNumber to NSString with NSNumberFormatter

I am converting an NSNumber to an NSString assuming in this example that the selected key in "theindex" is 1000000
NSNumber *firstNumber = [tempDict objectForKey:#"theindex"];
NSString *convertNumber = [firstNumber stringValue];
Returning the NSString "1000000"
I would like the string's value to be "1,000,000".
I am not concerned with localization, but understand from other questions that NSNumberFormatter should be implemented. I am not sure how to accomplish this?

Here is an example using a standard formatting style of NSNumberFormatter:
NSNumber *firstNumber = [NSNumber numberWithInt:123456789];
NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
[formatter setNumberStyle:NSNumberFormatterDecimalStyle];
NSString *convertNumber = [formatter stringForObjectValue:firstNumber];
NSLog(#"value : %#", convertNumber);
Other examples you can reference at:
http://iosdevelopertips.com/cocoa/formatting-numbers-nsnumberformatter-examples.html

NSNumber *firstNumber = [[NSNumber alloc] initWithInt:1000000] ;
NSNumberFormatter *format=[[NSNumberFormatter alloc] init];
[format setGroupingSize:3];
[format setCurrencyGroupingSeparator:#","];
[format setNumberStyle:NSNumberFormatterDecimalStyle];
NSString *convertNumber = [format stringFromNumber:firstNumber];

parse number from a locale specific string?

I have to get the number from France-number-style string: #"30.000,00"
When I use NSNumberFormattern to parse
NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
NSNumber *priceNumberValue = [numberFormatter numberFromString:#30.000"];
It returned 30, my expected return is 30000
I try to use other options
NSLocale *vnLocale = [[NSLocale alloc] initWithLocaleIdentifier:#"fr_FR"];
[numberFormatter setLocale:vnLocale];
or
[numberFormatter setDecimalSeparator:#","];
but it still returns unexpected value: 30
What is the correct way for me to tell the NSNumberFormatter parse #"30.000,00"?

Setting the locale should work, but you'll have to tell the numberformatter to use the grouping separator:
[numberFormatter setUsesGroupingSeparator:YES];
If that doesn't work, the following will definitely work:
NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
[numberFormatter setDecimalSeparator:#","];
[numberFormatter setGroupingSeparator:#"."];
[numberFormatter setUsesGroupingSeparator:YES];
NSNumber *priceNumberValue = [numberFormatter numberFromString:#"30.000,00"];
After checking this, it seems that the "fr-FR" locale doesn't have the properties you expect. However, using the "fr-BE" locale works fine:
NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:#"fr_BE"];
[numberFormatter setLocale:locale];
[locale release];
[numberFormatter setUsesGroupingSeparator:YES];
NSNumber *priceNumberValue = [numberFormatter numberFromString:#"30.000,00"];