传递“setQuantity:”的参数1将从整数生成指针,而不进行强制转换

我有一个UILabel,我需要从中获取一个整数的值,这样我就可以将它保存到我的核心数据对象中,但是我一直在得到这个错误和失败。

PurchaseOrderItem *newPOItem = (PurchaseOrderItem*) [NSEntityDescription insertNewObjectForEntityForName:@"PurchaseOrderItem" inManagedObjectContext:managedObjectContext];
            int qty = [qtyTextField.text integerValue];
            [newPOItem setProductName:productName.text];
            [newPOItem setDescription:productDescription.text];
            [newPOItem setPrice:[NSDecimalNumber decimalNumberWithString: retailPrice.text]];
            [newPOItem setQuantity:qty];
            [newPOItem setPurchaseorder:newEntity];                                         

            if (![managedObjectContext save:&error]) {
                // Handle the error.
                NSLog(@"%@",error);
            }

编辑: 这是我的最终解决方案-看起来完全荒谬,但它是有效的:

NSDecimalNumber *price = [NSDecimalNumber decimalNumberWithString: [retailPrice.text stringByReplacingOccurrencesOfString:@"$" withString:@""]];
NSNumber *qty = [NSNumber numberWithInt: [qtyTextField.text integerValue]];
NSDecimalNumber *itemSubTotal =[price decimalNumberByMultiplyingBy:[NSDecimalNumber decimalNumberWithDecimal:[qty decimalValue]]];