CODEWITHSUNDEEP
iphoneobjective-ccocoa-touchnsnumberformatter
CristiC
CristiC

Reputation: 22708

How to get the decimal symbol?

I want to get which is the decimal symbol set up on the device. Until now I was using this method:

NSString *decimalSymbol;     
NSNumberFormatter *f = [[NSNumberFormatter alloc] init];    
[f setNumberStyle:NSNumberFormatterDecimalStyle];   
[f setMinimumFractionDigits:2];     
[f setMaximumFractionDigits:2];     
[f setGroupingSeparator:@" "];      

NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];    
[formatter setNumberStyle:NSNumberFormatterDecimalStyle];   
[formatter setMinimumFractionDigits:2];     
[formatter setMaximumFractionDigits:2];     
[formatter setGroupingSeparator:@" "];      

NSRange range = {1,1};  

decimalSymbol = [[formatter stringFromNumber:[f numberFromString:[@"" stringByAppendingFormat:@"%.02f", 1.0f]]] substringWithRange:range];  

[formatter release];    
[f release];

It was working fine until now when I am testing on another device (4.3) - null is returned. What could be the problem?

Is there another way to retrive the decimal symbol?

LATER EDIT:
I can use:

decimalSymbol = [[@"" stringByAppendingFormat:@"%.02f", 1.0f] substringWithRange:range];

but why the other way it doe not work on this particular device?

Upvotes: 12

Views: 9093

Answers (5)

Mikolaj
Mikolaj

Reputation: 832

Swift 4

You can use Locale.current.decimalSeparator or NSLocale.current.decimalSeparator.

The Swift overlay to the Foundation framework provides the Locale structure, which bridges to the NSLocale class.

and

use NSLocale when you need reference semantics or other Foundation-specific behavior.

NSLocale Apple doc

Upvotes: 6

anonymous
anonymous

Reputation: 1330

Swift 4 version:

Locale.current.decimalSeparator

Upvotes: 12

Javi Campaña
Javi Campaña

Reputation: 1481

The best way is get the decimal separator from the current locale without init any NSNumberFormatter object. Like this:

[[NSLocale currentLocale] objectForKey:NSLocaleDecimalSeparator]

Upvotes: 21

picciano
picciano

Reputation: 22701

decimalSeparator

Returns a string containing the character the receiver uses to represent decimal separators.

- (NSString *)decimalSeparator

Example:

decimalSymbol = [f decimalSeparator];

Upvotes: 2

Matthias Bauch
Matthias Bauch

Reputation: 90117

NSNumberFormatter *formatter = [[[NSNumberFormatter alloc] init] autorelease];
NSString *decimalSymbol = [formatter decimalSeparator];

Upvotes: 30

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