Alexei Kukhto Alexei Kukhto - 26 days ago 6
JSON Question

TableView not displaying text with JSON data from API call

I connected to API using Alamofire and SwiftyJson.

I got this JSON return:



{
"contacts": [
{
"id": "c200",
"name": "Ravi Tamada",
"email": "ravi@gmail.com",
"address": "xx-xx-xxxx,x - street, x - country",
"gender" : "male",
"phone": {
"mobile": "+91 0000000000",
"home": "00 000000",
"office": "00 000000"
}
},
{
"id": "c201",
"name": "Johnny Depp",
"email": "johnny_depp@gmail.com",
"address": "xx-xx-xxxx,x - street, x - country",
"gender" : "male",
"phone": {
"mobile": "+91 0000000000",
"home": "00 000000",
"office": "00 000000"
}
},
{
"id": "c202",
"name": "Leonardo Dicaprio",
"email": "leonardo_dicaprio@gmail.com",
"address": "xx-xx-xxxx,x - street, x - country",
"gender" : "male",
"phone": {
"mobile": "+91 0000000000",
"home": "00 000000",
"office": "00 000000"
}
}
]
}




This is my ViewController code:


import UIKit
import Alamofire
import SwiftyJSON

class ViewController:UIViewController {
@IBOutlet weak var tblJSON: UITableView!

var arrRes = [[String : AnyObject]]()

override func viewDidLoad() {
super.viewDidLoad()
getRequest()
}

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

func getRequest() {
Alamofire.request("http://api.androidhive.info/contacts").responseJSON { (responseData) -> Void in
if ((responseData.result.value) != nil) {
let swiftyJsonVar = JSON(responseData.result.value!)

if let resData = swiftyJsonVar["contacts"].arrayObject {
self.arrRes = resData as! [[String : AnyObject]]
}

if self.arrRes.count > 0 {
self.tblJSON.reloadData()
}
}
}
}

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

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell : UITableViewCell = tableView.dequeueReusableCell(withIdentifier: "Cell")!
var dict = arrRes[indexPath.row]
cell.textLabel?.text = dict["name"] as? String
cell.detailTextLabel?.text = dict["email"] as? String
return cell
}

}




I have trouble displaying result on the TableView.
Can anyone help me? Thanks!

Answer

You need to implement UITableViewDataSource and UITableViewDelegate like this

class ViewController:UIViewController, UITableViewDataSource, UITableViewDelegate 

and in viewDidLoad you need to assign DataSource and Delegate to your tableView like this

override func viewDidLoad() {
    super.viewDidLoad()
    tblJSON.dataSource = self
    tblJSON.delegate = self
    getRequest()
}