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如何使一個來自REST服務的另一個數組與一個數組一致?

[英]How to conform an array from another array that comes from a REST Service?

我正在嘗試使用來自REST服務的元素創建TableView,這是一張包含說明,標題,類別和圖像的優惠券列表。 因此,我首先對數據進行反序列化,然后將其放入一個數組中,然后在每個部分將其轉換為特定的數組,但是我的循環不起作用,有人可以幫我嗎?

這是我的代碼:

    var couponsTitle : [String] = []

    var couponsDesc : [String] = []

    var couponsCat : [String] = []



    func getCoupons(){

        let miURL = URL(string: RequestConstants.requestUrlBase)

        let request =  NSMutableURLRequest(url: miURL!)

        request.httpMethod = "GET"

        if let data = try? Data(contentsOf: miURL! as URL) {

            do {

                let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as? NSDictionary

                let parseJSON = json

                let object = parseJSON?["object"] as! NSDictionary

                let mainCoupon = object["mainCoupon"] as! NSArray 

                let coupons = object["coupons"] as! NSArray



                for i in mainCoupon {
                    self.couponsCat.append((mainCoupon[i as! Int] as AnyObject).value(forKey: "category"))
                }

                for i in coupons {
                    self.couponsCat.append((coupons[i as! Int] as AnyObject).value(forKey: "category"))
                }

                for i in mainCoupon {

                    self.couponsDesc.append((mainCoupon[i as! Int] as AnyObject).value(forKey: “description"))

                }



                for i in coupons {

                    self.couponsDesc.append((coupons[i as! Int] as AnyObject).value(forKey: “description"))

                }

                for i in mainCoupon {

                    self.couponsTitle.append((mainCoupon[i as! Int] as AnyObject).value(forKey: “name"))

                }



                for i in coupons {

                    self.couponsTitle.append((coupons[i as! Int] as AnyObject).value(forKey: “name"))

                }

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
                let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! HomeTableViewCell

        cell.couponTitle.text = couponsTitle[indexPath.row]
        cell.couponDescription.text = couponsDesc[indexPath.row].    
        cell.couponCategory.text = couponsCat[indexPath.row]
        return cell

}

我最大的問題是,我不知道如何將數組放入循環中,而要知道每個部分的規范(我的意思是標題,描述,類別等)。

而不是擁有三個數組(每個屬性一個),為什么不為Coupon提供一個具有三個屬性的自定義類?

class Coupon: AnyObject {

    var description: String
    var title: String
    var category: String

    init(description: String, title: String, category: String) {
        self.description = description
        self.title = title
        self.category = category
    }
}

如果這樣做,可以通過執行以下操作避免很多循環

for coupon in mainCoupon {

            let description = mainCoupon["description"]
            let title = mainCoupon["name"]
            let category = mainCoupon["category"]

            let newCoupon = Coupon(description: description, title: title, category: category)

            couponsArray.append(newCoupon)
        }

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