UITableview with UISearchBar in swift Language

Create UISearchBar with UITableView in swift language ( iOS8 ). 

In this tutorials we are going to learn how to work UISearchBar with UITableView in swift language .
        UISearchBar Class implements a simple a text field for searches . UISearchBar object does not perform direct we need to user UISearchBarDelegate for this and implement the action when text entered and button clicked.



First Need to create UITableView in swift  : -  How to create / make a simple tableview in iOS8 and swift

Now need to implement UISearchBar in this

   Create global objects  : -

    @IBOutlet var tableView:UITableView!   // This is for your tableview

    

    @IBOutlet var searchBarObj:UISearchBar!  // It's for your search bar object 

    

    var is_searching:Bool!   // It's flag for searching  

    var dataArray:NSMutableArray!  // Its data array for UITableview 

    var searchingDataArray:NSMutableArray! // Its data searching array that need for search result show 

Add Delegate of UITableView and UISearchbar

class ViewController: UIViewController ,UITableViewDelegate, UITableViewDataSource, UISearchBarDelegate

Now initialise all array and search flag

    override func viewDidLoad() {

        super.viewDidLoad()

        // Do any additional setup after loading the view, typically from a nib.

        is_searching = false

        dataArray = ["Apple", "Samsung", "iPHone", "iPad", "Macbook", "iMac" , "Mac Mini"]

        searchingDataArray = []

        self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "cell")

        

    }

Now we need to minor change in UITableViewDataSource functions

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

        if is_searching == true{

            return searchingDataArray.count

        }else{

            return dataArray.count  //Currently Giving default Value

        }

    }

    

    

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{

        var cell:UITableViewCell = tableView.dequeueReusableCellWithIdentifier("cell") as UITableViewCell

        if is_searching == true{

            cell.textLabel.text = searchingDataArray[indexPath.row] as NSString

        }else{

            cell.textLabel.text = dataArray[indexPath.row] as NSString

        }

        return cell;

    }

Hows show in simulator now : -

Now need to implement UISearchBar Delegate function

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

        if searchBar.text.isEmpty{

            is_searching = false

            tableView.reloadData()

        } else {

            println(" search text %@ ",searchBar.text as NSString)

            is_searching = true

            searchingDataArray.removeAllObjects()

            for var index = 0; index < dataArray.count; index++

            {

                var currentString = dataArray.objectAtIndex(index) as String

                if currentString.lowercaseString.rangeOfString(searchText.lowercaseString)  != nil {

                    searchingDataArray.addObject(currentString)

                    

                }

            }

            tableView.reloadData()

        }

      } 

After searching we can result showing according to our search 

Using this delegate function we can search text using UISearchBar   in UITableView

Download Sample Project from here : - UITableView with SearchBar xCode Project

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