使用NSNumberFormatter输出格式化货币的UILabel

Question

NSNumberFormatter * fmt; 
NSNumber   * n; 

fmt = [ [ NSNumberFormatter alloc ] init ]; 
n = [ NSNumber numberWithFloat: 10 ]; 

[ fmt setFormatterBehavior: NSNumberFormatterBehavior10_4 ]; 
[ fmt setCurrencySymbol: @"$" ]; 
[ fmt setNumberStyle: NSNumberFormatterCurrencyStyle ]; 

// NSLog(@"%@", [ fmt stringFromNumber: n ]; 

[ fmt release ] 


-(IBAction)buttonPressed1:(id)sender 
{ 
double currency = [Amount1.text doubleValue] + [Amount2.text doubleValue]; 

SumCurrency.text = [NSString stringWithFormat:@"%0.0f", currency]; 


} 

如何获得SumCurrency.text格式化为1999，而不是1999年

请帮助..我是新来的Objective - C，但我的项目是近95 ％在界面构建器上。

我只是需要上述代码的帮助来实现..请我在这方面挣扎了很多。

Regards， 新手。

Answer 1

我得到了答案。但对于任何人的未来refernce

-(IBAction)buttonPressed1:(id)sender 
{ 
    double currency = [Amount1.text doubleValue] + [Amount2.text doubleValue]; 
    NSNumberFormatter *numberFormatter = [[[NSNumberFormatter alloc] init] autorelease]; 
    [numberFormatter setNumberStyle: NSNumberFormatterCurrencyStyle]; 
    NSString *numberAsString = [numberFormatter stringFromNumber:[NSNumber numberWithInt:currency]]; 
    SumCurrency.text = [NSString stringWithFormat:@"Converted:%@",numberAsString]; 
} 

Answer 2

注意以人谁问和回答了这个问题。

你说，

[numberFormatter stringFromNumber:[NSNumber numberWithInt:currency]]; 

，但是，那么你可能想要把

[numberFormatter stringFromNumber:(NSNumber *) currency]]; 

明白我想说我觉得如果你使用一个类，像NSNumber的的对象？

Answer 3

NSNumberFormatter * fmt; 
NSNumber   * n; 

fmt = [ [ NSNumberFormatter alloc ] init ]; 
n = [ NSNumber numberWithFloat: 10 ]; 

[ fmt setFormatterBehavior: NSNumberFormatterBehavior10_4 ]; 
[ fmt setCurrencySymbol: @"$" ]; 
[ fmt setNumberStyle: NSNumberFormatterCurrencyStyle ]; 

// NSLog(@"%@", [ fmt stringFromNumber: n ]; 

[ fmt release ]; 

使用

SumCurrency.text = [ fmt stringFromNumber: n ]; 

和你用它