I have a table view controller with cells. on clicking a cell I load another view controller and I want to handle elements on this view controller. on the detail view controller I placed a label and in the first step I want to set the text of the label, but I get an exception fatal error: unexpectedly found nil while unwrapping an Optional value and I don't know why. Are there any solutions?
This is the part of my table view controller on clicking a cell:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let vcMissionDetail : ViewControllerMissionDetail = self.storyboard?.instantiateViewControllerWithIdentifier("MissionDetail") as ViewControllerMissionDetail;
//load detail view controller
self.presentViewController(vcMissionDetail, animated: true, completion: nil)
//set label text
//at this line I get the exception -> label is nil
vcMissionDetail.label.text = "Test"
}
And this is my detail view controller (very simple):
import UIKit
class ViewControllerMissionDetail: UIViewController {
#IBOutlet var label: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
THX!
instantiateViewControllerWithIdentifier returns an optional because it may fail due to several reasons. So you should better unwrap it conditionally:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
if let vcMissionDetail : ViewControllerMissionDetail = self.storyboard?.instantiateViewControllerWithIdentifier("MissionDetail") as ViewControllerMissionDetail {
//set label text before presenting the viewController
vcMissionDetail.label.text = "Test"
//load detail view controller
self.presentViewController(vcMissionDetail, animated: true, completion: nil)
}
}
Further things to double check:
Is ViewControllerMissionDetail set as the custom class for your viewController in the identity inspector in InterfaceBuilder?
If the vcMissionDetail is successfully instantiated and it still crashes then delete the label's outlet connection in InterfaceBuilder and recreate it.
I think the solution to your problem is pretty straight forward. If I'm understanding correctly, you want to change the label on your detail view controller when you segue from table view controller using the didSelectRowAtIndexPath.
The place where you are probably making a mistake is, you're trying to change the label in your detail view controller from the table view controller.
The correct approach to your problem would be to set the label text in the 'viewDidLoad' or 'viewDidAppear' method of the detail view controller.
override func viewDidLoad() {
super.viewDidLoad()
//set label text here
}
override func viewDidAppear() {
super.viewDidLoad()
//OR set label text here
}
For swift:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
self.performSegueWithIdentifier("showItemDetail", sender: tableView)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if segue.identifier == "showItemDetail" {
let indexPath:NSIndexPath = self.tableView.indexPathForSelectedRow()!
let detailVC:ItemDetailViewController = segue.destinationViewController as ItemDetailViewController
detailVC.item = items[indexPath.row] as Item
}
}
Related
I have got a viewController in storyboard with following file
import UIKit
class jokesviewController: UIViewController,UITableViewDataSource,UITableViewDelegate {
#IBOutlet var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
return UITableViewCell()
}
}
and another controller in which i use this controller by making its object , (well this a JSQmessagesController Class in which i make object of jokesviewController class)
and the code i use is
var jokeviewController :jokesviewController? //at class begnning
and somewhere in some function
jokeviewController = jokesviewController()
self.view.addSubview(jokeviewController!.view)
jokeviewController!.view.backgroundColor = UIColor.grayColor()
my question is i get to use jokeviewController!.view giving me a view to use but when i try to get jokeviewController!.tableview it says i got a nil value .
I have tried both ways putting tableView inside a view and tableview without container view in the controller .
Any guesses
First of all, always use upper case for controllers( or classes ).
Secondly you instantiate view controller as is, but IB outlets and other stuff lives in storyboard. So, instead of
jokeviewController = jokesviewController()
use
jokeviewController = UIStoryboard(name: "yourStoryboard", bundle: nil).instantiateViewControllerWithIdentifier("giveYourViewControllerIdentifier") as! jokesviewController
and you will have everything set up.
For giving identifier for your view controller in storyboard, select your view controller in storyboard, select third tab and set storyboard ID to whatever you want.
This is a weird question and counter intuitive to how tableviews work, however I have an array that creates 3 cells in the tableview. Since we are currently working on a beta and we only need the user to segue when they click on the first cell the 2 other cells DONT need to be used.
Here is some code of our tableview
import UIKit
class TableViewController: UITableViewController {
let locationManager = CLLocationManager()
//Store Array of Images
var imageArray = ["riverparkplace","mayfair","jamesonhouse",]
//Array of Image Names
var textArray = ["River Park Place", "MayFair", "Jameson House"]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
locationManager.requestAlwaysAuthorization()
if KCSUser.activeUser() == nil {
print("User Not Logged In")
performSegueWithIdentifier("jobsiteTOLogin", sender: nil)
} else {
//user is logged in and will be loaded on first call to Kinvey
var currentusername = KCSUser.activeUser().givenName
print("User named:\(currentusername) has logged in ")
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell") as UITableViewCell!
//cell.textLabel?.text = textArray[indexPath.row]
let imageView = cell.viewWithTag(1) as! UIImageView
imageView.image = UIImage(named: imageArray[indexPath.row])
let textLabel2 = cell.viewWithTag(2) as! UILabel
textLabel2.text = textArray[indexPath.row]
return cell
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return imageArray.count
}
//On Click
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
}
//Buttons
#IBAction func logoutButton(sender: AnyObject) {
if KCSUser.activeUser() == nil{
//User is not logged in
print("Cant log out user since they are not logged in!!")
}else{
KCSUser.activeUser().logout()
print("User Logged out")
performSegueWithIdentifier("jobsiteTOLogin", sender: nil)
}
}
}
As you can see I only want the view to segue when you click on "riverrockplace" if you click on anything else it is ok if the app does nothing but would be even better if it returned a pop up notification.
Also at this stage when I segue I don't need to take data with me.
There are two ways you can approach this issue, using different types of segues:
You can add a segue that fires on cell selection, by control dragging from your cell to the destination. You can then implement the method shouldPerformSegueWithIdentifier: and, using the sender figure out which cell is calling it (as that will be sender), and fire or not based on that information.
You can add a custom segue by dragging from the yellow controller icon on the top of your TableViewController to the destination. Then, in didSelectRowAtIndexPath, determine if you should segue. If you should, then call performSegueWithIdentifier:.
Implement the didSelect Delegate method like this:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
if indexPath.row == 0{
// perform segue
}else{
// no action needed
}
}
You can assign userInteractionEnabled = false to the cells that you won't be using to prevent the click animation from happening, as it might be confusing to your users if they click on the cell, its styling changes and nothing happens.
Alternatively, if you want to pop up an alert to provide some useful information, you can use the didSelectRowAtIndexPath method from your code to filter the index of the selction using indexpath.row, as suggested by Md.Muzahidul
If i understood your problem correctly, what you have to do is you want to navigate to XViewController, when you click on first cell of the tableView only.
In that case you have to use conditional segues, which you can create by dragging segue by clicking on the FilesOwner and not the cell itself as shown in the image below,
Then select the segue you have just created and set its identifier in the attribute inspector as shown in below image,
Next, you need to fire the segue in the didSelectRowAtIndexPath, change your code as shown below,
//On Click
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
self.performSegueWithIdentifier("ConditionalNavigationToXViewController", sender: self)
}
Then check the segue as below,
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
if (segue.identifier == "ConditionalNavigationToXViewController") {
segue.destinationViewController as? XViewController
}
}
Hope this would help you.
I am am googling around the whole day for a probably simple question but I do not get it right. Hopefully someone can help me.
I have a tableview controller with one prototype cell containing three custom labels.
When I run the app the table view controller will generate about 150 tableview cells with content parsed form a csv-file.
When I click on one of these cells the user will be forwarded two a second view controller showing some additional infotext for his cell selection.
During the same time the user is clicking the tabelview cell a variable will be updated to the corresponding tableview-row-number (e.g. 150 for the last tableview cell.
Now I want to use this variable as reference text within the text shown in the second view controller.
The variable in the tableview controller is "rowSelectedFromList" and will be set by the following code:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
var rowSelectedFromList: String
rowSelectedFromList = rowOfItems[indexPath.row].customlabel3!
println(rowSelectedFromList)
}
The "println" is just for checking if it works correctly and it does.
The question is how can I use the variable "rowSelectedFromList" in the second view controller?
Appreciate your help, thanks!
You can add your custom logic in prepareForSegue like this:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if let controller = segue.destinationViewController as? YourSecondController,
indexPath = tableView.indexPathForSelectedRow() {
controller.someVariable = rowOfItems[indexPath.row].customlabel3!
}
}
Replace YourSecondController with class name for second view controller.
Don't forget to create IBOutlet for your UITableView and name it tableView.
You'll want to put something in prepareForSegue as well as a variable in your second view controller. So in your table view controller:
var variableToPass: String!
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
variableToPass = rowOfItems[indexPath.row].customlabel3!.text
performSegueWithIdentifier("SecondControllerSegue", sender: nil)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "SecondControllerSegue" {
let destinationController = segue.destinationViewController as! SecondViewController
destinationController.passedVariable = variableToPass
}
}
And in your second view controller you'll want to add the variable that the value will be passed to:
var passedVariable: String!
You can, of course, choose to replace the variable with whatever type you wish to send :)
Good question if you want sort this problem plz follow below code:
class ViewController {
var cvDataArray = cells = NSMutableArray.new()
func viewDidLoad() {
super.viewDidLoad()
cvDataArray.enumerateObjectsUsingBlock({(obj: AnyObject, idx: Int, stop: Bool) in var cell: UITableViewCell = tableView.dequeueReusableCellWithIdentifier("")
cell.textLabel.text = obj["title"]
cells.addObject(cell)
})
tableView.reloadData()
}
func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return cells.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
return cells.objectAtIndex(indexPath.row)
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
var cell: UITableViewCell = cells.objectAtIndex(indexPath.row)
}
}
The code which is working for me is a mixture Phoen1xUK and glyuck answers.
I put both together and ended up with this working version:
For the FirstViewController:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "SecondControllerSegue" {
if let indexPath = self.tableView.indexPathForSelectedRow() {
let rowSelectedFromList = rowOfItems[indexPath.row].customlabel3
(segue.destinationViewController as! SecondViewController).rowTransferedFromList = rowSelectedFromList
}
}
}
In the SecondViewController I set up the variable as follows:
var rowTransferedFromList: String!
I have a UITableView that populates Cells with data based on a JSON call. like so:
var items = ["Loading..."]
var indexValue = 0
// Here is SwiftyJSON code //
for (index, item) in enumerate(json) {
var indvItem = json[index]["Brand"]["Name"].stringValue
self.items.insert(indvItem, atIndex: indexValue)
indexValue++
}
self.tableView.reloadData()
How do I get the label of the cell when it is selected and then also pass that to another ViewController?
I have managed to get:
func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!) {
println("You selected cell #\(indexPath.row)!")
// Get Cell Label
let indexPath = tableView.indexPathForSelectedRow();
let currentCell = tableView.cellForRowAtIndexPath(indexPath!) as UITableViewCell!;
println(currentCell.textLabel.text)
}
I just cant figure out how to pass that as a variable to the next UIViewController.
Thanks
Passing data between two view controllers depends on how view controllers are linked to each other. If they are linked with segue you will need to use performSegueWithIdentifier method and override prepareForSegue method
var valueToPass:String!
func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!) {
println("You selected cell #\(indexPath.row)!")
// Get Cell Label
let indexPath = tableView.indexPathForSelectedRow();
let currentCell = tableView.cellForRowAtIndexPath(indexPath!) as UITableViewCell!;
valueToPass = currentCell.textLabel.text
performSegueWithIdentifier("yourSegueIdentifer", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "yourSegueIdentifer") {
// initialize new view controller and cast it as your view controller
var viewController = segue.destinationViewController as AnotherViewController
// your new view controller should have property that will store passed value
viewController.passedValue = valueToPass
}
}
If your view controller are not linked with segue then you can pass values directly from your tableView function
func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!) {
println("You selected cell #\(indexPath.row)!")
// Get Cell Label
let indexPath = tableView.indexPathForSelectedRow();
let currentCell = tableView.cellForRowAtIndexPath(indexPath!) as UITableViewCell!;
let storyboard = UIStoryboard(name: "YourStoryBoardFileName", bundle: nil)
var viewController = storyboard.instantiateViewControllerWithIdentifier("viewControllerIdentifer") as AnotherViewController
viewController.passedValue = currentCell.textLabel.text
self.presentViewController(viewContoller, animated: true , completion: nil)
}
You asked:
How do I get the label of the cell when it is selected and then also pass that to another ViewController?
I might suggest rephrasing the question as follows: "How do I retrieve the data associated with the selected cell and pass it along to another view controller?"
That might sound like the same thing, but there's an important conceptual distinction here. You really don't want to retrieve the value from the cell label. Our apps employ a MVC paradigm, so when you want to pass data information from one scene to another, you want to go back to the model (the items array), not the view (the text property of the UILabel).
This is a trivial example, so this distinction is a bit academic, but as apps get more complicated, this pattern of going back to the model becomes increasingly important. The string representation from the cell is generally is a poor substitute for the actual model objects. And, as you'll see below, it's just as easy (if not easier) to retrieve the data from the model, so you should just do that.
As an aside, you don't really need a didSelectRowAtIndexPath method at all in this case. All you need is a segue from the table view cell to the destination scene, give that segue a unique identifier (Details in my example), and then implement prepare(for:sender:):
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let destination = segue.destination as? DetailsViewController {
let selectedRow = tableView.indexPathForSelectedRow!.row
destination.selectedValue = items[selectedRow]
}
}
Alternatively, if your segue is between the cell and destination scene, you can also use the sender of the prepare(for:sender:):
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let destination = segue.destination as? DetailsViewController {
let cell = sender as! UITableViewCell
let selectedRow = tableView.indexPath(for: cell)!.row
destination.selectedValue = items[selectedRow]
}
}
But the idea is the same. Identify what row was selected, and retrieve the information from the model, the items array.
The above is Swift 3. For Swift 2.3, please see the previous version of this answer.
Okay..Its been 2 days I was searching for the answer that how could I be able to save the selected UITableViewCell label text data and display that data to an another label on an another View Controller which will come out after tapping on a cell. At last I have completed with the task and its successful. Here is the complete code with steps using Swift.I am using Xcode 6.4.
Step 1.
I have Two class assigned to the storyboard view controllers named "iOSTableViewControllerClass.swift" which is a Table View Controller and "iOSTutorialsViewControllerClass.swift" which is a normal View Controller.
Step 2.
Now make segue from iOSTableViewControllerClass to iOSTutorialsViewControllerClass by Control-dragging on the storyboard area and choose "show" from drop down menu. Click on this highlighted button according to the below image and perform the segue.
Step 3.
Now select the segue by clicking on the storyboard and give it an identifier on the Attributes Inspector. In this case I named it as "iOSTutorials"
Step 4.
Now on this step put a label on your cell as well as on the other view controller and make outlets of them on their corresponding classes.
In my case those are "#IBOutlet weak var iOSCellLbl: UILabel!" and " #IBOutlet weak var iOSTutsClassLbl: UILabel!".
Step 5.
Make a string type variable on the first Table View Controller Class. I did this as "var sendSelectedData = NSString()" also Make a string type variable on the second class. I did this as "var SecondArray:String!".
Step 6.
Now we are ready to go.
Here is the complete Code for first Class --
// iOSTableViewControllerClass.swift
import UIKit
class iOSTableViewControllerClass: UITableViewController, UITableViewDataSource,UITableViewDelegate {
// Creating A variable to save the text from the selected label and send it to the next view controller
var sendSelectedData = NSString()
//This is the outlet of the label but in my case I am using a fully customized cell so it is actually declared on a different class
#IBOutlet weak var iOSCellLbl: UILabel!
//Array for data to display on the Table View
var iOSTableData = ["Label", "Button", "Text Field", "Slider", "Switch"];
override func viewDidLoad() {
super.viewDidLoad()
//Setting the delegate and datasource of the table view
tableView.delegate = self
tableView.dataSource = self
//Registering the class here
tableView.registerClass(CustomTableViewCellClassiOS.self, forCellReuseIdentifier: "CellIDiOS")
//If your using a custom designed Cell then use this commented line to register the nib.
//tableView.registerNib(UINib(nibName: "CellForiOS", bundle: nil), forCellReuseIdentifier: "CellIDiOS")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// Return the number of sections.
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// Return the number of rows in the section.
return iOSTableData.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let CellIDentifier = "CellIDiOS"
//In this case I have custom designed cells so here "CustomTableViewCellClassiOS" is the class name of the cell
var cell:CustomTableViewCellClassiOS! = tableView.dequeueReusableCellWithIdentifier(CellIDentifier, forIndexPath: indexPath) as? CustomTableViewCellClassiOS
if cell == nil{
tableView.registerNib(UINib(nibName: "CellForiOS", bundle: nil), forCellReuseIdentifier: CellIDentifier)
cell = tableView.dequeueReusableCellWithIdentifier(CellIDentifier) as? CustomTableViewCellClassiOS
}
//Here we are displaying the data to the cell label
cell.iOSCellLbl?.text = iOSTableData[indexPath.row]
return cell
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("You selected cell #\(indexPath.row)!")
// Get Cell Label text here and storing it to the variable
let indexPathVal: NSIndexPath = tableView.indexPathForSelectedRow()!
println("\(indexPathVal)")
let currentCell = tableView.cellForRowAtIndexPath(indexPathVal) as! CustomTableViewCellClassiOS!;
println("\(currentCell)")
println("\(currentCell.iOSCellLbl?.text!)")
//Storing the data to a string from the selected cell
sendSelectedData = currentCell.iOSCellLbl.text!
println(sendSelectedData)
//Now here I am performing the segue action after cell selection to the other view controller by using the segue Identifier Name
self.performSegueWithIdentifier("iOSTutorials", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
//Here i am checking the Segue and Saving the data to an array on the next view Controller also sending it to the next view COntroller
if segue.identifier == "iOSTutorials"{
//Creating an object of the second View controller
let controller = segue.destinationViewController as! iOSTutorialsViewControllerClass
//Sending the data here
controller.SecondArray = sendSelectedData as! String
}
Here is the complete code for the second Class..--
// iOSTutorialsViewControllerClass.swift
import UIKit
class iOSTutorialsViewControllerClass: UIViewController {
//Creating the Outlet for the Second Label on the Second View Controller Class
#IBOutlet weak var iOSTutsClassLbl: UILabel!
//Creating an array which will get the value from the first Table View Controller Class
var SecondArray:String!
override func viewDidLoad() {
super.viewDidLoad()
//Simply giving the value of the array to the newly created label's text on the second view controller
iOSTutsClassLbl.text = SecondArray
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
I do it like this.
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let selectedName = nameArray[indexPath.row]
let newView: nextViewName = self.storyboard?.instantiateViewController(withIdentifier: "nextViewName") as! nextViewName
newView.label.text = selectedValue
self.present(newView, animated: true, completion: nil)
}
I have created a TableView application following the "Beginning iPhone Development with Swift " book.The search Bar tableView is created with code and not within the storyboard.The book explains how to get search results and display the corresponding cells but I would like my app to perform a segue to a ViewController I have created in the storyBoard.How can I trigger a Segue with code ?
for more info , this is my file :
import UIKit
class SearchResultsController: UITableViewController , UISearchResultsUpdating{
let sectionsTableIdentifier = "section identifier"
var products = [product]()
var filteredProducts = [product]()
override func viewDidLoad() {
super.viewDidLoad()
tableView.registerClass(UITableViewCell.self,
forCellReuseIdentifier: sectionsTableIdentifier)
}
// MARK: - Table view data source
override func tableView(tableView: UITableView,
numberOfRowsInSection section: Int) -> Int {
return filteredProducts.count
}
override func tableView(tableView: UITableView,
cellForRowAtIndexPath indexPath: NSIndexPath)
-> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(
sectionsTableIdentifier) as UITableViewCell
cell.textLabel!.text = filteredProducts[indexPath.row].name
return cell }
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "detailView"{
let index = self.tableView?.indexPathForSelectedRow()
var destinationViewController : infoViewController = segue.destinationViewController as infoViewController
destinationViewController.Title = filteredProducts[index!.row].title
destinationViewController.eam = filteredProducts[index!.row].energy
destinationViewController.fam = filteredProducts[index!.row].fat
destinationViewController.pam = filteredProducts[index!.row].protein
destinationViewController.cam = filteredProducts[index!.row].carbohydrates
destinationViewController.imgName = filteredProducts[index!.row].imgName
}
}
func updateSearchResultsForSearchController(
searchController: UISearchController) {
let searchString = searchController.searchBar.text
filteredProducts.removeAll()
for prod in products{
var name = prod.name.lowercaseString
if name.rangeOfString(searchString) != nil {
filteredProducts.append(prod)
}
}
tableView.reloadData()
}}
Because the controller is built in code, you need to use the SearchResultsController's tableView delegate method didSelectRowAtIndexPath to trigger the presentation of the next view controller.
Assuming that there is a table view controller underpinning the SearchResultsController, you could potentially use that as the delegate of the SearchResultsController. The main table view controller might already have the necessary code to segue when a cell is selected, in which case you need to check which tableView has been selected in order to correctly determine which product the cell represents.
To set the delegate, add the following line to the code (in your comment above) where you create the SearchResultsController:
resultsController.tableView?.delegate = self
Then amend the didSelectRowAtIndexPath method to test which tableView is triggering the method:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
if (tableView == self.tableView) {
// use the existing code to present the detail VC, based on the data in the main table view
...
} else {
// use new code to present the detail VC, based on data from the SearchResultsController
...
}
}
If the main table view controller is in a storyboard, you can use a segue to present the detail VC. In this case you would use self.performSegueWithIdentifier() in the above code. If not, you would either use self.navigationController?.pushViewController() (if you are embedded in a navigation controller) or self.presentViewController() (to present the detail VC modally).
Another option would be to set the SearchResultsController's delegate to be self (in viewDidLoad), and then to implement didSelectRowAtIndexPath in the SearchResultsController class. In this case, you don't need to test which tableView has triggered the method, but you will not be able to use a segue.