ios - swift:我的字典中的应用内购买价格

Question

我的应用程序中有两项应用内购买。我想加载我的应用内购买价格。

我使用此代码来加载价格:

let productIds = Set(["purchase","purchase1"])
var products = [String:SKProduct]()
var price = [String: String]()

override func viewDidLoad() {
        super.viewDidLoad()

        if !(UserDefaults.standard.bool(forKey: "purchased")){
            if (SKPaymentQueue.canMakePayments()) {
                let productsRequest:SKProductsRequest = SKProductsRequest(productIdentifiers: productIds);
                productsRequest.delegate = self;
                productsRequest.start();
                print("Fetching Products");
            } else {
                print("Can't make purchases");
            }
        }

    }

func productsRequest (_ request: SKProductsRequest, didReceive response: SKProductsResponse) {

    for product in response.products {
        self.products[product.productIdentifier] = product

        price[product.productIdentifier] = localizedPriceForProduct(product)
        print(price)
    }
}

func localizedPriceForProduct(_ product:SKProduct) -> String {
    let priceFormatter = NumberFormatter()
    priceFormatter.formatterBehavior = NumberFormatter.Behavior.behavior10_4
    priceFormatter.numberStyle = NumberFormatter.Style.currency
    priceFormatter.locale = product.priceLocale
    return priceFormatter.string(from: product.price)!
}

但是在价格中我得到这个结果

["purchase": "3,00 USD"]
["purchase": "3,00 USD", "purchase1": "1,00 USD"]

但我需要得到这个:

["purchase": "3,00 USD", "purchase1": "1,00 USD"]

怎么做？

Answer 1

您正在 for 循环内打印，因此您的代码是正确的，只是打印位于错误的行中。

尝试:

for product in response.products {
    self.products[product.productIdentifier] = product

    price[product.productIdentifier] = localizedPriceForProduct(product)
}
print(price)