使用 NSNumberFormatter 将 NSNumber 转换为 NSString

发布于 2024-10-18 17:22:13 字数 408 浏览 0 评论 0原文

我将 NSNumber 转换为 NSString ，假设在此示例中 "theindex" 中选定的键是 1000000

NSNumber  *firstNumber = [tempDict objectForKey:@"theindex"];
NSString *convertNumber = [firstNumber stringValue];

返回 NSString “1000000”

我希望字符串的值为“1,000,000”。

我不关心本地化，但从其他问题中了解到应该实现 NSNumberFormatter 。我不知道如何实现这一点？

原文

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?

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纵性 2024-10-25 17:22:13

以下是使用 NSNumberFormatter 标准格式化样式的示例：

NSNumber *firstNumber = [NSNumber numberWithInt:123456789];
NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
[formatter setNumberStyle:NSNumberFormatterDecimalStyle];
NSString *convertNumber = [formatter stringForObjectValue:firstNumber];
NSLog(@"value : %@", convertNumber);

您可以参考的其他示例：
http://iosdevelopertips.com/cocoa/formatting-numbers-nsnumberformatter-examples。 html

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

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不甘平庸 2024-10-25 17:22:13

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

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

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