Why my search bar is not working? - ios

Question

I have tried to solve this for a couple of hours. I am a newbie in IOS and want to develop a bucket list with a search bar. The codes have no problem in compilation but when i make input in the search bar, it won't show any search result. I don't know where the problem is.
btw: I have two suspects:
1. I tried to print the status, and it seems the searchBar is never active. How to open it?
2. Does it have anything to do with var missions' data
type as Mission? It is something I am not familiar with.
Please see the following codes:
import UIKit
class BucketListViewController:UITableViewController, MissionDetailsViewControllerDelegate, MissionEditViewControllerDelegate, UISearchBarDelegate{
var searchController = UISearchController(searchResultsController: nil)
#IBOutlet weak var searchBar: UISearchBar!
var searchActive : Bool = false
var filtered:[String] = []
var missions:[String] = ["Sky diving", "Live in Hawaii"]
override func viewDidLoad() {
super.viewDidLoad()
searchBar.delegate = self
self.searchDisplayController!.searchResultsTableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "MyCell")
}
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 = missions.filter({ (text) -> Bool in
let tmp: NSString = text
let range = tmp.rangeOfString(searchText, options: NSStringCompareOptions.CaseInsensitiveSearch)
return range.location != NSNotFound
})
if(filtered.count == 0){
searchActive = false;
} else {
searchActive = true;
}
self.tableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
// dequeue the cell from our storyboard
let cell = tableView.dequeueReusableCellWithIdentifier("MyCell")!
if(searchActive){
print("search active!")
cell.textLabel?.text = filtered[indexPath.row]
} else {
cell.textLabel?.text = missions[indexPath.row]
}
return cell
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if(searchActive){
return filtered.count
} else {
return missions.count
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "AddNewMission" {
let navigationController = segue.destinationViewController as! UINavigationController
let controller = navigationController.topViewController as! MissionDetailsViewController
controller.delegate = self
}
if segue.identifier == "EditMission" {
let navigationController = segue.destinationViewController as! UINavigationController
let controller = navigationController.topViewController as! MissionEditViewController
controller.delegate = self
}
}
func missionDetailsViewController(controller: MissionDetailsViewController, didFinishAddingMission mission: String) {
dismissViewControllerAnimated(true, completion: nil)
missions.append(mission)
tableView.reloadData()}
func missionEditViewController(controller: MissionEditViewController, didFinishEditingMission mission: String, atIndexPath indexPath: Int) {
dismissViewControllerAnimated(true, completion: nil)
missions[indexPath] = mission
tableView.reloadData()
}
}

Answer 1

From the project you have shared there is a problem in your cellForRowAtIndexPath method.
replace
cell.textLabel?.text = filtered[indexPath.row] as? String
with
cell.textLabel?.text = filtered[indexPath.row].details
And it will work fine.
Your complete code will be:
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
// dequeue the cell from our storyboard
let cell = tableView.dequeueReusableCellWithIdentifier("MissionCell")!
// if the cell has a text label, set it to the model that is corresponding to the row in array
if(searchActive){
print("search active!")
cell.textLabel?.text = filtered[indexPath.row].details
} else {
cell.textLabel?.text = missions[indexPath.row].details
}
return cell
}