轉換貨幣格式化字符串正常的字符串

Question

我曾用一個字符串貨幣符號和貨幣格式... 我想將其轉換成正常的字符串..

我的代碼是這樣的..

-(NSString *)removeCurrency:(NSString *)str{ 


    NSNumberFormatter *_currencyFormatter = [[NSNumberFormatter alloc] init]; 
    [_currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle]; 
    [_currencyFormatter setNegativeFormat:@"-¤#,##0.00"]; 

    NSLog(@"\n With Currency : %@",str); 
    NSLog(@"\n Without Currency : %@",[_currencyFormatter numberFromString:str]); 

    return [NSString stringWithFormat:@"%@",[_currencyFormatter numberFromString:str]]; 
} 

但問題是有，當我輸入的字符串盧比0.009還給了我不同的值，但與其他數它的作品完美...

Answer 1

我只想保持簡單。

NSString *stringWithoutCurrency = [str stringByReplacingOccurrencesOfString:@"$" withString:@""]; 

從我可以告訴，有一個的NSString的不等價NSNumberFormatter，但我可能是錯的。

Answer 2

爲什麼不保存您添加的貨幣格式到它之前的值。通常，只添加了貨幣，你之前顯示格式，而不是存儲。

Answer 3

你說用「RS 0.009」你會得到不同的值。是價值0.008999999999999999，通過任何機會呢？如果是這樣，你實際上得到了正確的結果。把它弄到浮點不準確。

下面是一些代碼，顯示了這一點：

NSString* str = @"Rs 0.009"; 

NSNumberFormatter *_currencyFormatter = [[NSNumberFormatter alloc] init]; 
[_currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle]; 
[_currencyFormatter setCurrencyCode:@"INR"]; 
[_currencyFormatter setLenient:YES]; 
[_currencyFormatter setCurrencySymbol:@"Rs"]; 

NSLog(@"\n With Currency : %@",str); 
NSLog(@"\n Without Currency : %@",[_currencyFormatter numberFromString:str]); 
NSLog(@"\n Without Currency : %f",[[_currencyFormatter numberFromString:str] floatValue]); 
NSLog(@"\n Without Currency : %.03f",[[_currencyFormatter numberFromString:str] floatValue]); 

Answer 4

，如果你設置的貨幣按區域設置比你可以使用當前的區域刪除符號，並得到串

-(NSString *)removeCurrency:(NSString *)str{ 

    NSLocale *currentLocale = [NSLocale currentLocale]; 
    NSString *currency = [currentLocale objectForKey:NSLocaleCurrencySymbol]; 
    NSNumberFormatter *_currencyFormatter = [[NSNumberFormatter alloc] init]; 
    NSString *currencyCode=[currentLocale objectForKey:NSLocaleCurrencyCode]; 
    [_currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle]; 

    [_currencyFormatter setCurrencyCode:currencyCode]; 
    [_currencyFormatter setLenient:YES]; 
    [_currencyFormatter setCurrencySymbol:currency]; 

    NSLog(@"\n Currency : %@",currency); 
    NSLog(@"\n Without Currency : %@",[_currencyFormatter numberFromString:str]); 
    NSLog(@"\n Without Currency : %f",[[_currencyFormatter numberFromString:str] floatValue]); 
    // NSLog(@"\n Without Currency : %.03f",[[_currencyFormatter numberFromString:currency]]); 

    NSLog(@"\n With Currency : %@",str); 
    NSLog(@"\n Without Currency : %@",[_currencyFormatter numberFromString:str]); 

    return [NSString stringWithFormat:@"%@",[_currencyFormatter numberFromString:str]]; 
}