iOS中的NSDecimalNumber错误的小数点分隔符 [英] wrong decimal separator with NSDecimalNumber in iOS

问题描述

我尝试使用正确的小数分隔符以下列方式输出十进制数字的描述：

  NSString * strValue = @9.94300; 
 NSDecimalNumber * decimalNumber = [NSDecimalNumber decimalNumberWithString：strValue]; 
 NSLocale * locale = [NSLocale currentLocale]; 
 NSLog（@％@，[locale localeIdentifier]）; 
 NSLog（@％@，[decimalNumber descriptionWithLocale：locale]）; 
  

输出为：

  de_DE 
 9.943 
  

小数点分隔符应为'，'对于此语言环境而不是。。错误在哪里？如何根据本地输出正确的小数分隔符？

解决方案

@TriPhoenix：是的我正在运行iOS 5. / p>

@Vignesh：非常感谢。如果我将iPhone语言设置为德语，以下代码现在可以使用：

  NSString * strValue = @9.94300; 
 NSDecimalNumber * decimalNumber = [NSDecimalNumber decimalNumberWithString：strValue]; 
 NSNumberFormatter * numberFormatter = [[NSNumberFormatter alloc] init]; 
 [numberFormatter setFormatterBehavior：NSNumberFormatterBehavior10_4]; 
 [numberFormatter setNumberStyle：NSNumberFormatterDecimalStyle]; 
 NSLog（@％@，[numberFormatter stringFromNumber：decimalNumber]）; 
  

输出为：
9,943

但现在我有另一个问题。如果我将iPhone语言切换回英语，输出仍然是9,943而不是9.943。我做错了吗？

I tried to output the description of a decimal number with the correct decimal separator in the following way:

NSString* strValue = @"9.94300";
NSDecimalNumber* decimalNumber = [NSDecimalNumber decimalNumberWithString: strValue];    
NSLocale* locale = [NSLocale currentLocale];
NSLog(@"%@", [locale localeIdentifier]);
NSLog(@"%@", [decimalNumber descriptionWithLocale: locale] );

The output is:

de_DE
9.943

The decimal separator should be ',' instead of '.' for this locale. Where is the error? How can I output the correct decimal separator depending on the local?

解决方案

@TriPhoenix: Yes I'm running iOS 5.

@Vignesh: Thank you very much. The following code works now if I set the iPhone language to German:

NSString* strValue = @"9.94300";
NSDecimalNumber* decimalNumber = [NSDecimalNumber decimalNumberWithString: strValue];    
NSNumberFormatter* numberFormatter = [[NSNumberFormatter alloc] init];
[numberFormatter setFormatterBehavior: NSNumberFormatterBehavior10_4];
[numberFormatter setNumberStyle: NSNumberFormatterDecimalStyle];
NSLog(@"%@", [numberFormatter stringFromNumber: decimalNumber] );

The output is: 9,943

But now I have another problem. If I switch the iPhone language back to English the output is still 9,943 instead of 9.943. Do I make something wrong?

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