search bar in ios swift - ios

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)
}

Answer 1

You can try this...
class SearchNew: UIViewController, UITableViewDataSource, UITableViewDelegate, UISearchBarDelegate, GADInterstitialDelegate{
var SearchBarValue:String!
var searchActive : Bool = false
var data : NSMutableArray!
var filtered:NSMutableArray!
#IBOutlet var searchBar: UISearchBar!
#IBOutlet var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
self.searchBar.showsCancelButton = false
tableView.tableFooterView = UIView(frame: CGRectZero)
/* Setup delegates */
tableView.delegate = self
tableView.dataSource = self
searchBar.delegate = self
self.searchBar.delegate = self
data = []
filtered = []
self.getData()
} //-----viewDidLoad closed------
func getData()
{
//insert member data within data array
data.addObject(member)
}
func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
searchActive = true
}
func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
searchActive = false
}
func searchBarCancelButtonClicked(searchBar: UISearchBar) {
searchActive = false;
searchBar.text = nil
searchBar.resignFirstResponder()
tableView.resignFirstResponder()
self.searchBar.showsCancelButton = false
tableView.reloadData()
}
func searchBarSearchButtonClicked(searchBar: UISearchBar) {
searchActive = false
}
func searchBarShouldEndEditing(searchBar: UISearchBar) -> Bool {
return true
}
func searchBar(searchBar: UISearchBar, textDidChange searchText: String) {
self.searchActive = true;
self.searchBar.showsCancelButton = true
filtered.removeAllObjects()
dispatch_to_background_queue
{
for xdata in self.data
{
let nameRange: NSRange = xdata.rangeOfString(searchText, options: [NSStringCompareOptions.CaseInsensitiveSearch ,NSStringCompareOptions.AnchoredSearch ])
if nameRange.location != NSNotFound{
self.filtered.addObject(xdata)
}
}//end of for
self.dispatch_to_main_queue {
/* some code to be executed on the main queue */
self.tableView.reloadData()
} //end of dispatch
}
}
func dispatch_to_main_queue(block: dispatch_block_t?) {
dispatch_async(dispatch_get_main_queue(), block!)
}
func dispatch_to_background_queue(block: dispatch_block_t?) {
let q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
dispatch_async(q, block!)
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if(searchActive) {
return filtered.count
}else{
return data.count
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "showDetailView") {
if let destination=segue.destinationViewController as? DetailViewController{
let path=tableView.indexPathForSelectedRow
let cell=tableView.cellForRowAtIndexPath(path!)
destination.passedValue=(cell?.textLabel?.text)
}
}
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
searchBar.resignFirstResponder()
searchBar.endEditing(true)
self.view.endEditing(true)
self.searchBar.showsCancelButton = false
self.searchBar.text=""
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell")! as UITableViewCell;
if(searchActive){
cell.textLabel?.text = filtered[indexPath.row] as! NSString as String
} else {
cell.textLabel?.text = data[indexPath.row]as! NSString as String
}
return cell;
}
}
Hope it helps you.

Answer 2

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()
}

Answer 3

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

Answer 4

Replace this method with your TableView's method
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if(searchActive){
return filtered.count
}
else{
return data.count
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell: UITableViewCell = tableView.dequeueReusableCell(withIdentifier: "cell",for: indexPath)
var display = searchActive == true ? filtered[indexPath.row] :
data[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
}