使用NSNumberFormatter輸出格式化貨幣的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]; 


} 

如何獲得SumCurrency.text格式化爲1999，而不是1999年

請幫助..我是新來的Objective - C，但我的項目是近95 ％在界面構建器上。

我只是需要上述代碼的幫助來實現..請我在這方面掙扎了很多。

Regards， 新手。

Answer 1

我得到了答案。但對於任何人的未來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

注意以人誰問和回答了這個問題。

你說，

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

，但是，那麼你可能想要把

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

明白我想說我覺得如果你使用一個類，像NSNumber的的對象？

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