私はこれについてしばらく前に同様のトピックを見てきましたが、それは方程式がどこかでNSNumberを使用したためであるように思われました。すべてのコードを確認しましたが、方程式にNSDecimalNumbersを使用していることがわかります。
いくつかの価格設定番号を返すJSONWebサービスを入手しました。
オブジェクトプロパティでそれらを解析した直後に、次の式を実行したいと思います。
NetPrice *(1 +(RawPercentage / 100))+ FixedPrice = processedNetPrice
更新:コードを次のように変更しました:
NSDecimalNumber *one = [NSDecimalNumber one];
if (!self.netPrice || [self.netPrice isKindOfClass:[NSNull class]])
{ self.netPrice = [NSDecimalNumber zero]; }
NSDecimalNumber *nettoPrijs = self.netPrice;
NSLog(@"self.netPrice = %@",self.netPrice);
//Returns: self.netPrice = 89.25
NSLog(@"nettoPrijs = %@",nettoPrijs);
//Returns: nettoPrijs = 89.25
if (!self.userData.BandFixed || [self.userData.BandFixed isKindOfClass:[NSNull class]])
{ self.userData.BandFixed = [NSDecimalNumber zero]; }
NSDecimalNumber *fixedPrice = self.userData.BandFixed;
NSLog(@"self.userData.BandFixed = %@",self.userData.BandFixed);
//Returns: self.userData.BandFixed = 0
NSLog(@"fixedPrice = %@",fixedPrice);
//Returns: fixedPrice = 0
if (!self.userData.BandPercentage || [self.userData.BandPercentage isKindOfClass:[NSNull class]])
{ self.userData.BandPercentage = [NSDecimalNumber zero]; }
NSDecimalNumber *rawPercentage = self.userData.BandPercentage;
NSLog(@"self.userData.BandPercentage = %@",self.userData.BandPercentage);
//Returns: self.userData.BandPercentage = 0
NSLog(@"rawPercentage = %@",rawPercentage);
//Returns: rawPercentage = 0
NSDecimalNumber *percentage = [rawPercentage decimalNumberByMultiplyingByPowerOf10:-2];
NSLog(@"percentage = %@",percentage);
//Returns: percentage = 0
NSDecimalNumber *onePercent = [one decimalNumberByAdding:percentage];
NSLog(@"onePercent = %@",onePercent);
//Returns: onePercent = 1
NSDecimalNumber *onePercentTimesNetPrice = [onePercent decimalNumberByMultiplyingBy:nettoPrijs];
NSLog(@"onePercentTimesNetPrice = %@",onePercentTimesNetPrice);
//Returns: onePercentTimesNetPrice =
-0.000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000359498933794611654993903616
NSDecimalNumber *addingFixed = [onePercentTimesNetPrice decimalNumberByAdding:fixedPrice];
NSLog(@"addingFixed = %@",addingFixed);
//Returns: addingFixed =
-0.000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000359498933794611654993903616
私が変更した場合:
NSDecimalNumber *onePercentTimesNetPrice = [onePercent decimalNumberByMultiplyingBy:nettoPrijs];
に:
NSDecimalNumber *onePercentTimesNetPrice = [nettoPrijs decimalNumberByMultiplyingBy:onePercent];
クラッシュします:
-[__NSCFNumber decimalNumberByMultiplyingBy:]: unrecognized selector sent to instance 0x84ad160