ViewCell height无效Swift 4

我是Xcode的初学者,我需要一些关于表视图中viewcell的帮助。

这是我的viewcell的属性:

当我试着运行模拟器时,它变成了这样:

我的viewcontroller

import UIKit
import SwiftyJSON
import Kingfisher

class CakeViewController: UIViewController,UITableViewDelegate,UITableViewDataSource {

    //MARK : Properties


    var cakeArray = [Cake]()

    @IBOutlet weak var testImage: UIImageView!
    @IBOutlet weak var tableView: UITableView!

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return cakeArray.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cellIdentifier = "CakeTableViewCell"
        //        let cell = tableView.dequeueReusableCell(withIdentifier: "CakeCategoryTableViewCell"/*Identifier*/, for: indexPath)
        guard let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath) as? CakeTableViewCell  else {
            fatalError("The dequeued cell is not an instance of cakeViewCell.")
        }
        //cell.textLabel?.text = cake_category[indexPath.row]
        let cakeObj = cakeArray[indexPath.row]
        cell.cakeLabel.text = cakeObj.product
        return cell
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        print("Load Initial Data")

        loadInitialDataFromJson(category : "Reguler Cake")


        // Do any additional setup after loading the view.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    func loadInitialDataFromJson(category:String)
    {
        APIManager.sharedInstance.getCakeByCategory(category: category, onSuccess: {json in DispatchQueue.main.async {
            let status = json["status"].stringValue
            //let message = json["message"].stringValue


            if status == "OK"
            {

                for (key, subJson) in json["list_produk"] {
                    //print(subJson["id_product"])
                    var arrayVariant = [Variant]()
                    for(key,subsJson) in subJson{
                        arrayVariant.append(Variant(size:subsJson["size"].stringValue,price:subsJson["price"].intValue)!)
                    }
                    self.cakeArray.append(Cake(id_product:subJson["id_product"].stringValue,product:subJson["product"].stringValue,description:subJson["description"].stringValue,imageURL:subJson["images"].stringValue,variant:arrayVariant)!)
                }
                self.tableView.rowHeight = UITableViewAutomaticDimension
                self.tableView.estimatedRowHeight = 150
                self.tableView.reloadData()
            }else{
                print("Not Ok")
            }

            }}, onFailure: {error in let alert = UIAlertController(title: "Error", message: error.localizedDescription, preferredStyle: .alert)
                alert.addAction(UIAlertAction(title: "Dismiss", style: .default, handler: nil))
                self.show(alert, sender: nil)
        })

    }


    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */

}

和我的tableviewcell

import UIKit


class CakeTableViewCell: UITableViewCell {

    // MARK : Properties
    @IBOutlet weak var cakeImage: UIImageView!
    @IBOutlet weak var cakeLabel: UILabel!


    @IBAction func addToCart(_ sender: UIButton) {

    }

    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code
    }

    override func setSelected(_ selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)

        // Configure the view for the selected state
    }

}

知道为什么会这样吗??

我已经用tableview创建了一些视图,它工作正常。