如何在 swift 中的 tableview 单元格中显示 Api 响应

Question

I am stuck in my code, I am trying show to API response tableview cell but i have not any idea how to fill data in array ,So not showing anything in my tableviewcell. I am using custome cell and Alamofire in swift. Please improve my mistake give me solution .

func Api_call()
{
    let url = URL(string: "https://dousic.com/api/radiolist")!
    let components = URLComponents(url: url, resolvingAgainstBaseURL: true)!
    // let fragment = components.fragment!
    print(components)

    let params = ["user_id":"16"  ]

    Alamofire.request(url, method: .post, parameters: params, encoding: URLEncoding.default).responseJSON {response in
         self.hideActivityIndicator()
        var err:Error?
        switch response.result {
        case .success(let value):
            print(value)


            let json = JSON(value)

            // returns nil if it's not an array
            if let resData = json["radioList"].arrayObject
            {
                self.array_RadioList = resData as! [[String:AnyObject]]
            }
              if self.array_RadioList.count > 0 {
                    self.tbl_home.reloadData()
                }

        case .failure(let error):
            err = error
            print(err ?? "error .....")
        }
    }

}`

Thanks for help .

EDIT

Answer 1

Just create a radio list variable like this 

    var array_RadioList:[JSON]?

Get array from json like this    
-
    if let resData = json["response"]["radioList"].array {
                    self.array_RadioList = resData
                    self.tableView.reloadData()
                }
and reload data.And get radio object in 

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell: UITableViewCell? = self.tableView.dequeueReusableCell(withIdentifier: cellReuseIdentifier)
        let radio:JSON? = array_RadioList?[indexPath.row]
        cell?.textLabel?.text = radio?["radio_tags"].string
        return cell ?? UITableViewCell()
    }

Answer 2

If the API you're calling is well-made, you should use a get method, not a post. Also, I tried to use " https://dousic.com/api/radiolist?user_id=16 " but it return

{
    "response": {
        "code": "301",
        "error": "wrong url"
    }
}

These 2 things could be your problem, or it could be in your custom cells, or in you cellforrow method... If you can show more code it would help.

---

EDIT

Try to use this version of the optional chaining :

if let resData = json["radioList"].arrayObject as? [[String:AnyObject] {
    self.array_RadioList = resData
    self.tbl_home.reloadData()
}

and try to debug it with breakpoints to see if the application goes everywhere you want and what are your variables at this time.

Answer 3

If you are getting your array_RadioList from Api_call(), try this

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cell : homeCell = tableView.dequeueReusableCell(withIdentifier: "homeCell")! as! homeCell cell.lbl_name?.text = array_RadioList[indexPath.row]["radio_title"] as? String return cell }

and also check for numberOfRowsInSection function.

Answer 4

Try this

  func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return [self.array_RadioList].count;
}