Ios 使用NSNumberFormatter防止小数

我有一个

NSNumberFormatter

，我正试图使用它从

NSNumber

生成一个整数GBP（£）。不管我用哪种咒语，我总是能得到小数点后两位。我的代码是：

NSNumberFormatter *fmtCurrency = [[[NSNumberFormatter alloc] init] autorelease];
[fmtCurrency setNumberStyle: NSNumberFormatterCurrencyStyle];
[fmtCurrency setGeneratesDecimalNumbers:FALSE];
[fmtCurrency setCurrencyCode:@"GBP"];
[fmtCurrency setCurrencySymbol:@"£"];
txtTotal.text = [fmtCurrency stringFromNumber: result.Bill ]; // this is an NSNumber

---

您需要从中提取。

我想您需要使用零调用setMaximumFractionDigits

NSNumberFormatter *fmtCurrency = [[[NSNumberFormatter alloc] init] autorelease];
[fmtCurrency setNumberStyle: NSNumberFormatterCurrencyStyle];
[fmtCurrency setGeneratesDecimalNumbers:NO];
[fmtCurrency setCurrencyCode:@"GBP"];
[fmtCurrency setCurrencySymbol:@"£"];

NSNumber* myNumber = [NSNumber numberWithFloat:12.34];
NSString* myString = [fmtCurrency stringFromNumber:myNumber];
NSLog( @"the number is %@", myString );

[fmtCurrency setMaximumFractionDigits:0];
myString = [fmtCurrency stringFromNumber:myNumber];
NSLog( @"now it's %@", myString );  


2011-07-25 01:05:39.823 FormatterTest[841:707] the number is £12.34
2011-07-25 01:05:39.824 FormatterTest[841:707] now it's £12

---

你可以试试下面的方法

[fmtCurrency setGeneratesDecimalNumbers:NO];
[fmtCurrency setMaximumFractionDigits:0];

或

---

按照@Praveen

的建议，从

NSNumber

中获取

intValue

，您可以删除所有NSNumberFormatter（非常密集），只需执行以下操作：

txtTotal.text = [NSString stringWithFormat:@"£%d", result.Bill.intValue];

---

将字符串格式设置为两位小数。。。（是我正在寻找的）改编

            float distance = //distance with many decimals...;

            NSNumberFormatter *numberFormatter = [[[NSNumberFormatter alloc] init] autorelease];
            [numberFormatter setMaximumFractionDigits:2];

            //new distance with two decimals
            NSNumber* myNumber = [NSNumber numberWithFloat:distance];

祝你好运

    let formatter = NumberFormatter()
    formatter.maximumFractionDigits = 0

---

我认为获取intvalue将删除小数部分谢谢，通过将minimumFractionDigits和maximumFractionDigits设置为零，我得到了我需要的。