格式化货币输出

Question

- (void)textFieldDidEndEditing:(UITextField *)textField 

{ 
    if (textfield1) { 

     NSString *txt = self.textfield1.text; 

     double num1 = [txt doubleValue]; 

     double tCost = num1 /100; 

     NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; 

     [numberFormatter setNumberStyle: NSNumberFormatterCurrencyStyle]; 


     NSString *numberAsString = [numberFormatter stringFromNumber:[NSNumber numberWithFloat:tCost]]; 

     self.textfield1.text = [NSString stringWithFormat:@"%[email protected]",numberAsString]; 
    } 
} 

这是代码IVE放在一起它格式化文本框的输出转换成货币 IM试图找出这样的输出是怎么做的格式使用的货币，

，如果有人类型在1625年它的格式为0.1625 目前如果somone类型在50它将其格式为0.50这是正确的，因为它应该是一个计算器，这是一个计算器，这是在美元或pences人民的电价。

Answer 1

• （无效）textFieldDidEndEditing：（的UITextField *）文本框

{ 如果（textfield1的）{

NSString *txt = self.textfield1.text; 

    double num1 = [txt doubleValue]; 


    double tCost = num1/100; 





    NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; 

    [numberFormatter setNumberStyle: NSNumberFormatterCurrencyStyle]; 


    // NSString *numberAsString = [numberFormatter stringFromNumber:[NSNumber numberWithFloat:tCost]]; 

    //NSString *numberAsString = [numberFormatter stringFromNumber: 
    //      [NSNumber numberWithDouble:[tCost doubleValue]]]; 



    [numberFormatter setMaximumFractionDigits:3]; 

    [numberFormatter setRoundingMode: NSNumberFormatterRoundUp]; 

    NSString *numberString = [numberFormatter stringFromNumber:[NSNumber numberWithFloat:tCost]]; 


    self.textfield1.text = [NSString stringWithFormat:@"%@",numberString]; 
} 

}

Answer 2

为了让货币格式使用下面的代码：

- (NSString*) getAmountInCurrencyFormatWithValue:(NSString*) valueString { 

    NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; 
    [numberFormatter setNumberStyle: NSNumberFormatterCurrencyStyle]; 
    NSString *numberAsString = [numberFormatter stringFromNumber:[NSNumber numberWithDouble:[valueString doubleValue]]]; 

    return numberAsString; 
}