search in retrieved data from json in swift3 - swift

Question

I retrieve data from service URL in swift3 and displayed in tableview. I tried to search names, it shows filtered names but another cell is not updating. please check my below code.
class MyViewController: UIViewController,UITableViewDataSource,UITableViewDelegate,UISearchBarDelegate {
#IBOutlet weak var tableView: UITableView!
#IBOutlet weak var searchBar: UISearchBar!
var filteredArray = [String]()
var shouldShowSearchResults = false
var nameArray = [String]()
var emailArray = [String]()
var tableData = [String]()
override func viewDidLoad() {
super.viewDidLoad()
downloadData()
createSearchBar()
// Do any additional setup after loading the view.
}
func createSearchBar(){
searchBar.showsCancelButton = false
searchBar.placeholder = "Enter your search"
searchBar.delegate = self
self.navigationItem.titleView = searchBar
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
tableData = nameArray
if shouldShowSearchResults
{
return filteredArray.count
}
else
{
return tableData.count
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell:mycell! = tableView.dequeueReusableCell(withIdentifier: "cell") as! mycell
if shouldShowSearchResults
{
cell.name.text = filteredArray[indexPath.row]
cell.email.text = emailArray[indexPath.row]
return cell
}
else
{
cell.name.text = tableData[indexPath.row]
cell.email.text = emailArray[indexPath.row]
return cell
}
}
func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
searchBar.endEditing(true)
}
func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
shouldShowSearchResults = true
searchBar.endEditing(true)
self.tableView.reloadData()
}
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
filteredArray = tableData.filter({
(names:String) -> Bool in
return names.lowercased().range(of: searchText.lowercased()) != nil
})
if searchText != ""
{
shouldShowSearchResults = true
self.tableView.reloadData()
}
else
{
shouldShowSearchResults = false
self.tableView.reloadData()
}
}
func downloadData()
{
let url = URL(string: "http://www.json-generator.com/api/json/get/crdvbKvLoy?indent=2")!
var request = URLRequest(url: url, cachePolicy: .reloadIgnoringCacheData, timeoutInterval: 10000)
URLSession.shared.dataTask(with: request) { (data, response, error) in
if error != nil {
print(error!)
return
}
do {
if let jsonData = try JSONSerialization.jsonObject(with:data!, options: []) as? [[String:AnyObject]] {
print(jsonData)
// Utility.SharedInstance.dict_UserDetails3 = jsonData as AnyObject
for item in jsonData {
if let name = item["Name"] as? AnyObject {
self.nameArray.append(name as! String)
}
if let email = item["Email"] as? AnyObject{
self.emailArray.append(email as! String)
}
DispatchQueue.main.async {
self.tableView.reloadData()
}
}
}
} catch let error as NSError {
print(error)
}
}.resume()
}
}
output:
search___________
Name Email
----------------
Wasim wasim#gmail.com
Dravid dravid#gmail.com
Kohli virat#gmail.com
Kallis Jaques#gmail.com
I entered in search text as K
-----------------------------
search_____K______
Name Email
----------------
Kohli wasim#gmail.com
Kallis dravid#gmail.com
In this search works, but Email field not updating. please check once. I am tried more samples but not solved. please check once, what changes I do to solve this problem.

Answer 1

you filter name array but not the email address array. so the indexes don't match up.
The best solution is to not separate related data. Structure it properly.
struct Person {
var name: String
var email: String
}
var people: [Person]?
var filteredResults: [Person]?
Using a struct for a person that holds the name and email together, you can filter this array easier and the data wont get out of sync.