NSNumberFormatter

 

Formatter Styles

 

NSNumberFormatterNoStyle,

NSNumberFormatterDecimalStyle,

 NSNumberFormatterCurrencyStyle,

 NSNumberFormatterPercentStyle,

 NSNumberFormatterScientificStyle,

NSNumberFormatterSpellOutStyle

 

NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
[numberFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4];
[numberFormatter setFormat:@"0.00%;0.00%;-0.00%"];
NSNumber *four = [NSNumber numberWithFloat:4.0];
NSLog(@"%@", [numberFormatter stringFromNumber:four]);
// output: "400.00%"

 

 

 

NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
[numberFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4];
[numberFormatter setNumberStyle:NSNumberFormatterPercentStyle];
NSNumber *four = [NSNumber numberWithFloat:4.0];
 
NSLocale *usLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];
[numberFormatter setLocale:usLocale];
NSLog(@"en_US: %@", [numberFormatter stringFromNumber:four]);
// output: "en_US: 400%"
 
NSLocale *faLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"fa_IR"];
[numberFormatter setLocale:faLocale];
NSLog(@"fa_IR: %@", [numberFormatter stringFromNumber:four]);
// output: "fa_IR: ‪‪٪۴۰۰‬‬"