search bar in ios swift

Question

I want to use search bar in my app.I am trying to use it but exceptions are coming . I have got an array of dictionary called member [[String:Anyobject]] and from this i have taken out the name and stored into an array data of type string and it is not working.

Here is my code :

import UIKit

class hcbaViewController: UIViewController,UITableViewDataSource,UITableViewDelegate,UISearchBarDelegate {

@IBOutlet var searchbar: UISearchBar!

@IBOutlet var tableview: UITableView!

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

var members = [String:AnyObject]()

var searchActive = true
var filtered:[String] = []
var data: [String] = []


override func viewDidLoad() {
    super.viewDidLoad()
    print(data)
    print("________-----------________----------")
 print(member)


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

func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
    searchActive = true
}

func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
    searchActive = false
}
func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
    searchActive = false
}
func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
    searchActive = false
}


func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {

    filtered = data.filter({ (text) -> Bool in
        let tmp:NSString = text as NSString
        let range = tmp.range(of: searchText, options: NSString.CompareOptions.caseInsensitive)
        return range.location != NSNotFound
    })

    if (filtered.count == 0){
        searchActive = false
    }
    else{
        searchActive = true
    }
    self.tableview.reloadData()
}

 func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    return 1
}

func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {

    return "MemberDirectory"

}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

    return member.count

   if(searchActive){
       return filtered.count
    }
 else{
        return data.count
    }

   // return member.count

}


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

    let cell: UITableViewCell = tableView.dequeueReusableCell(withIdentifier: "cell",for: indexPath)

     var display = member[indexPath.row]

    cell.textLabel?.text = display["Name"] as! String?
    cell.detailTextLabel?.text = display["email"] as? String


    let n = display["Name"] as! String
     data.append(n)

    return cell
}


  override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

        let vc = segue.destination as! hcbadetailViewController
        vc.kk = members

}


func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

       members = member[indexPath.row]
       self.performSegue(withIdentifier: "bye", sender: nil)
}

Solution 1

class ViewController: UIViewController,UITableViewDelegate,UITableViewDataSource,UISearchBarDelegate {

    @IBOutlet var tblview: UITableView!
    @IBOutlet var searchview: UISearchBar!

    var data:[String] = ["Dev","Hiren","Bhagyashree","Himanshu","Manisha","Trupti","Prashant","Kishor","Jignesh","Rushi"]

    var filterdata:[String]!

    override func viewDidLoad() {

        super.viewDidLoad()
        tblview.dataSource = self
        searchview.delegate = self
        filterdata = data
    }

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

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

        let cell = tblview.dequeueReusableCell(withIdentifier: "cell", for: indexPath)as!TableViewCell1

        if filterdata.count != 0
        {
            cell.textview.text = filterdata[indexPath.row]
        }
        else{
            cell.textview.text = data[indexPath.row]
        }

        return cell
    }

    func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {

            // filterdata  = searchText.isEmpty ? data : data.filter {(item : String) -> Bool in

            filterdata = searchText.isEmpty ? data : data.filter { $0.contains(searchText) }

            //return item.range(of: searchText, options: .caseInsensitive, range: nil, locale: nil) != nil

        tblview.reloadData()               
    }

Solution 2

let searchController = UISearchController(searchResultsController: nil)
navigationItem.hidesSearchBarWhenScrolling = true
navigationItem.searchController = searchController