Swift3 Alamofire SwiftyJSON get data outside founcion - ios

Question

I was trying to get swfityjson and almo to work in Xcode 8
like in the post in this page:
Showing JSON data on TableView using SwiftyJSON and Alamofire
But I can not get the data from the self.
This helped me a little, but I am stuck with the count. Someone please help me with this, beacuse I am new to swift and have spent the day trying to understand how to get the count of rows and the data out of the almo function.
import UIKit
import Alamofire
import SwiftyJSON
class TableViewController: UITableViewController {
var names = [String]()
var rowCount = [Int]()
var tableTitle = [String]()
typealias JSONStandard = [String : AnyObject]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
func callAlamo(){
let url = "http://xxxxxx/xxxx/xxxxxx.php"
//let id = UserDefaults.standard.string(forKey: "UserDefaults")
Alamofire.request(url).responseJSON{(respones)->Void in
if let value = respones.result.value{
let json = JSON(value)
let rows = json["items"].arrayValue
for anItem in rows {
let title: String? = anItem["SupplierName"].stringValue
self.tableTitle.append(title!)
//print(self.tableTitle.count)
}
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewDidAppear(_ animated: Bool) {
// let isUserLoggedin = UserDefaults.standard.boll(forKey: "userLogIn")
let ststus = UserDefaults.standard.string(forKey: "userLogIn")
if ststus == "false" {
self.performSegue(withIdentifier: "loginView", sender: self)
}else{
callAlamo()
}
}
#IBAction func logout(_ sender: AnyObject) {
UserDefaults.standard.set(false, forKey: "userLogIn")
UserDefaults.standard.synchronize()
self.performSegue(withIdentifier: "loginView", sender: self)
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print (tableTitle)
return self.tableTitle.count
}
}
I am unable to get the tableTitle.count. Thanks!

Answer 1

UITableView Delegate methods are called before viewDidAppear. So you need to reload the UITableView after got the response from server
DispatchQueue.main.async {
self.tableView.reloadData()
}
After the for loop.

Answer 2

import UIKit
import Alamofire
import SwiftyJSON
class TableViewController: UITableViewController {
var names = [String]()
var rowCount = [Int]()
var tableTitle = [String]()
typealias JSONStandard = [String : AnyObject]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
func callAlamo(){
let url = "http://pos1.dermedia.co.il/iphone/getLasttransactions.php?cardid="
//let id = UserDefaults.standard.string(forKey: "UserDefaults")
Alamofire.request(url).responseJSON{(respones)->Void in
if let value = respones.result.value{
let json = JSON(value)
// print (json["items"].arrayValue)
let rows = json["items"].arrayValue
// print (rows)
for anItem in rows {
let title: String? = anItem["SupplierName"].stringValue
self.tableTitle.append(title!)
print(self.tableTitle.count)
}
}
DispatchQueue.main.async {
self.tableView.reloadData()
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewDidAppear(_ animated: Bool) {
// let isUserLoggedin = UserDefaults.standard.boll(forKey: "userLogIn")
let ststus = UserDefaults.standard.string(forKey: "userLogIn")
if ststus == "false" {
self.performSegue(withIdentifier: "loginView", sender: self)
}else{
callAlamo()
print ("gggggg")
print(self.tableTitle.count)
}
}
#IBAction func logout(_ sender: AnyObject) {
UserDefaults.standard.set(false, forKey: "userLogIn")
UserDefaults.standard.synchronize()
self.performSegue(withIdentifier: "loginView", sender: self)
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print (self.tableTitle)
print("hhh")
return tableTitle.count
}
}