How is it possible to perform a segue from a UITabBarController Child ViewController to a DetailView of an UITableViewController with UINavigationController in between?
There is a TabBarController with two childs, FirstView(Most Viewed Symbol) and NavigationController(Contacts Symbol).
The FirstView has a button, which should perform a segue to Show Profile VC.
The NavCont has a TableView with subclass All ProfilesTVC with a prototype cell as child.
AllProfilesTVC has an array with three names which are displayed by the reused cell.
Which viewcontroller do I have to instantiate and prepare at the function prepareForSegue in FirstView (HomeVC) and where should the segue, which I create in storyboard, direct to? So that I'm at "John's" DetailView.
And is it possible that when I performed a segue to ShowProfileVC, that I can push the Back Button to return to the All ProfilesTVC?
There is a github repo for those who want to try at github repo
FirstView / HomeVC.swift
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// what do we do here ???
}
AllItemsTVC
class AllItemsTVC: UITableViewController {
let profiles = ["Joe", "John", "Ken"]
override func viewDidLoad() {
super.viewDidLoad()
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return profiles.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! UITableViewCell
let profile = profiles[indexPath.row] as String
cell.textLabel?.text = profile
return cell
}
#IBAction func cancelFromShowProfile(segue: UIStoryboardSegue) {
}
// MARK: - Navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if let identifier = segue.identifier {
switch identifier {
case "ShowProfile":
if let showProfileVC = segue.destinationViewController as? ShowProfileVC {
// pass the data to the destinationVC
let selectedProfile = profiles[tableView.indexPathForSelectedRow()!.row] as String
showProfileVC.name = selectedProfile
}
default: break
}
}
}
ShowProfileVC
class ShowProfileVC: UIViewController {
#IBOutlet weak var textLabel: UILabel! {
didSet {
textLabel.text = name
}
}
var name = "Label"
override func viewDidLoad() {
super.viewDidLoad()
}
}
Thanks for any help.
You cannot do this with a segue, but that's not a problem because you can do it quite simply in code. Just give your view controllers an identifier in storyboard and instantiated them via this identifier with the appropriate UIStoryboard API.
Start by switching to the other tab bar item in code, and then first tell the navigation controller to popToRootViewController, after which you can push all the necessary controllers onto the navigation stack in turn. You can do all the configuration you normally do in prepareForSegue just before pushing the controllers.
The trick is to do it all with animated set to false except the last step.
Related
I have two ViewControllers one which contains a UITextView and the other one contains a UITableView. I would like my app to pass data for the selected row from the SecondViewController which contains the UITableView to the UITextView in the first ViewController depending on what row the user select. I am using the below code in the firstViewController (Just to give you a bit of history what I have is a UITextView inside the firstViewController and the user have the option of either entering a custom value or exert a longpressgesture then a popover Window get displayed containing the UITableView in the secondViewController. What I would like to achieve is when a row is selected from the popoverView which contains the UItableView the popoverView get closed and the value highlighted in the table get displayed in the UITextView in the firstViewController):
class ViewController: UIViewController, UITextViewDelegate, UIPopoverPresentationControllerDelegate {
#IBOutlet weak var indicativeDesignWorkingLifeTextView: UITextView!
var textInsideIndicativeDesignWorkingLifeTextView: String? = nil
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
indicativeDesignWorkingLifeTextView.text = textInsideIndicativeDesignWorkingLifeTextView
indicativeDesignWorkingLifeTextView.attributedText = placeholderTextInIndicativeDesignWorkingLifeTextView
}
}
and the below code in the secondViewController:
#objc func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
func prepare(for segue: UIStoryboardSegue, sender: UITableViewCell?) {
let toFirstViewController = segue.destination as! ViewController
// Pass the selected object to the new view controller.
if let indexPath = self.indicativeDesignWorkingLifeTable.indexPathForSelectedRow {
let selectedRow = years[indexPath.row]
toFirstViewController.textInsideIndicativeDesignWorkingLifeTextView = selectedRow
}
}
}
However, when I run the simulator and select a row from the table nothing happens inside the UITextView in the firstViewController? All what happens is that the firstViewController gets displayed. Any help is much appreciated.
Thanks,
Shadi.
Update your code as:
#objc func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
self.performSegue(withIdentifier: "<set identifier String>", sender: indexPath)
}
func prepare(for segue: UIStoryboardSegue, sender:Any?) {
let toFirstViewController = segue.destination as! ViewController
// Pass the selected object to the new view controller.
if let indexPath = sender as? IndexPath {
print("indexPath - \(indexPath)")
let selectedRow = years[indexPath.row]
print("selectedRow - \(selectedRow)")
toFirstViewController.textInsideIndicativeDesignWorkingLifeTextView = selectedRow
}
}
I have a tableview with cell data. When I click the cell, it takes me to another view controller and displays the cell label in a UIlabel on the new ViewController.
However, When I go back to the tableview and select a different cell, the value on the new view controller doesn't update immediately. It displays the last clicked cell, then if I go back and repeat the process a second time it will update.
didSelectRowAtIndexPath
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let currentCell = tableView.cellForRowAtIndexPath(indexPath)! as UITableViewCell
self.labeltosend = currentCell.textLabel!.text!
}
prepareForSegue
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == PostSegueIdentifier {
if let destination = segue.destinationViewController as? NewViewController {
destination.newlabel = labeltosend
}
}
}
Am I supposed to reload the data somehow?
edit 1: Destination View Controller
#IBOutlet weak var dispLabel: UILabel!
var newlabel = String()
override func viewWillAppear(animated: Bool) {
dispLabel.text = newlabel
}
override func viewDidLoad() {
super.viewDidLoad()
// Do view setup here.
}
prepareForSegue(_:sender) is not called if you draw segue from cell to next view controller. Try to draw segue from view controller to view controller. And perform a manual segue using performSegueWithIdentifier("MySegueIdentifier" sender:self) in tableView(_:didSelectRowAtIndexPath:indexPath). For more info please have a look at this answer.
Think prepareForSegue is sometimes getting called before didSelectRowAtIndexPath you can move that code to prepareForSegue. When you set up a segue as you have sender in prepareForSegue is the indexPath of row tap, precisely so you can do these sorts of things.
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == PostSegueIdentifier {
if let destination = segue.destinationViewController as? NewViewController {
let indexPath = sender as NSIndexPath
let currentCell = tableView.cellForRowAtIndexPath(indexPath)! as UITableViewCell
self.labeltosend = currentCell.textLabel!.text!
destination.newlabel = labeltosend
}
}
}
You should read Duncan's comment.
First: if you have your segue connected from the UITableViewCell, don't. Delete it and connect the segue from the view controller itself.
Second: on the didSelectRowAtIndexPath method, call prepareForSegue method.
And finally on the destination controller:
#IBOutlet weak var dispLabel: UILabel!
var newlabel = String()
override func viewWillAppear(animated: Bool) {
//dispLabel.text = newlabel
}
override func viewDidLoad() {
super.viewDidLoad()
// Do view setup here.
dispLabel.text = newlabel
}
Also, you need to improve your naming convention. Is really confusing
Hope this helps!
I know, I know this has been asked a lot of times. I also found this question but the solution it suggested did not work for me.
I am just trying to build an app to demonstrate how to use those things in UIKit (in case I want to use them later on. I can just copy the code).
I have created a View Controller with a table view in it. I wrote a class called PrototypeTableController to act as the view controller class for the view controller I created in the storyboard.
When the user taps on one of the cells, I want another view controller to show, called Prototype Table Content. And different text will be shown if you tap on different cells.
In the storyboard, it's like this:
The text of the label in Prototype Table Content will be different when the user taps on a different cell. This means I need to send data from one view controller to another.
The post mentioned above suggested that I should give the segue an identifier, so I did:
Here is my code:
View controller class for the table view:
class PrototypeTableController: UIViewController, UITableViewDataSource, UITableViewDelegate {
let data = ["Cell1", "Cell2", "Cell3", "Cell4", "Cell5"]
let contents = ["Hello", "Nice", "OMG", "Jesus", "Peace"]
var content: String?
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return data.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = UITableViewCell()
cell.textLabel?.text = data[indexPath.row]
return cell
}
func tableView(tableView: UITableView, titleForFooterInSection section: Int) -> String? {
return "This is a prototype table view created by Sweeper"
}
func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return "my table"
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
content = contents[indexPath.row]
tableView.deselectRowAtIndexPath(indexPath, animated: true)
performSegueWithIdentifier("showContent", sender: tableView)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "showContent" {
let destination = segue.destinationViewController as! PrototypeTableContentViewController
destination.contentString = content
}
}
}
View controller class for Prototype Table Content view:
class PrototypeTableContentViewController: UIViewController {
#IBOutlet var tableContent: UILabel!
var contentString: String?
override func viewDidLoad() {
super.viewDidLoad()
tableContent.text = contentString
}
}
I think I did all the things suggested in the post mentioned above. I added an identifier, I called performSegueWithIdentifier
, I also deselected the cell after the tapping.
However, it just doesn't go to the other view controller! It stays on the same controller! Like this:
When the user taps on one of the cells, I want another view controller to show, called Prototype Table Content. And different text will be shown if you tap on different cells.
While you can programmatically call performSegueWithIdentifier, it's a lot of effort that the storyboard can automatically handle for you. Just use a show storyboard segue from your prototype cell to PrototypeTableContentViewController.
prepareForSegue knows which cell you selected because the cell is the sender. All you have to do is set the destination view controller's contentString.
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
guard let controller = (segue.destinationViewController as? PrototypeTableContentViewController where segue.identifier == "showContent", let cell = sender as? UITableViewCell, textLabel = cell.textLabel else {
return
}
controller.contentString = textLabel.text
}
This is very similar to how a template like Master-Detail segues from a cell to show details about a cell (although Apple uses indexPathForSelectedRow to pass the cell's details):
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "showDetail" {
if let indexPath = self.tableView.indexPathForSelectedRow {
let object = objects[indexPath.row] as! NSDate
let controller = (segue.destinationViewController as! UINavigationController).topViewController as! DetailViewController
controller.detailItem = object
controller.navigationItem.leftBarButtonItem = self.splitViewController?.displayModeButtonItem()
controller.navigationItem.leftItemsSupplementBackButton = true
}
}
}
In either case, the SDK performs the storyboard segue for you; a segue didn't need to be programmatically added or performed.
Make sure your tableview delegate is set. If you are using storyboard, make sure delegate outlet in your storyboard is connected properly. If you are creating tableview by code, then you should do tableView.delegate=self; to set the delegate.
Your code is fine.
And one more thing:
You might need to change this line:
performSegueWithIdentifier("showContent", sender: tableView)
you need to make the sender as the row but not the tableview,so that the prepare for segue will get the sender as row instead of whole tableview.
As you are calling the prepareForSegue overtime you select a row, it makes sense to make the row as sender in performSegueWithIdentifier.
So it would be:
let row=indexPAth.row
performSegueWithIdentifier("showContent", sender: row)
I have created this table with 3 sections and 7 rows. The code is shown below
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet var subjectTabelView: UITableView!
var slSubject = ["English Lang&Lit", "Chinese Lang&Lit", "Economics"]
var hlSubject = ["Mathematics", "Chemistry", "Biology"]
var tokSubject = ["Theory of Knowledge"]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
subjectTabelView.dataSource = self
subjectTabelView.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 3
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if section == 0{
return hlSubject.count
}else if section == 1{
return slSubject.count
}else {
return tokSubject.count
}
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let subjectCell = tableView.dequeueReusableCellWithIdentifier("idSubjectCell", forIndexPath: indexPath) as! UITableViewCell
if indexPath.section == 0 {
subjectCell.textLabel?.text = hlSubject[indexPath.row]
} else if indexPath.section == 1{
subjectCell.textLabel?.text = slSubject[indexPath.row]
} else {
subjectCell.textLabel?.text = tokSubject[indexPath.row]
}
return subjectCell
}
func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
if section == 0 {
return "HL"
} else if section == 1{
return "SL"
} else {
return "ToK"
}
}
}
What do I have to do to make every cell in this table pushes a new view controller when it is tapped? The picture of my storyboard is shown below. In my storyboard, my view controller, I have already created a navigation controller, and made the view controller that has the table the rootViewController. And for now, my tableView has only one prototype cell and one cell identifier.
Thank you!
Suppose your "locationVC" is:
class LocationVC: UIViewController {
#IBOutlet weak var fromWhereLabel: UILabel!
//This can be changed when creating this UIViewController
var textToShow : String?
override func viewWillAppear(animated: Bool) {
if let textToShow = textToShow {
fromWhereLabel.text = textToShow
}
}
}
then, just adding function below to your code in ViewController named UIViewController (that should have a better name ;-)) you can achieve your goal.
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
//if such cell exists and destination controller (the one to show) exists too..
if let subjectCell = tableView.cellForRowAtIndexPath(indexPath), let destinationViewController = navigationController?.storyboard?.instantiateViewControllerWithIdentifier("locationVC") as? LocationVC{
//This is a bonus, I will be showing at destionation controller the same text of the cell from where it comes...
if let text = subjectCell.textLabel?.text {
destinationViewController.textToShow = text
} else {
destinationViewController.textToShow = "Tapped Cell's textLabel is empty"
}
//Then just push the controller into the view hierarchy
navigationController?.pushViewController(destinationViewController, animated: true)
}
}
You will be able to have a LocationVC UIViewController launched every time you tap a cell, and it will have some value to prove it right. :)
Hope it Helps!
UPDATE: Code and Instructions below are for allowing to launch
different UIViewControllers after tap on cells
1.- Let's create a class that will be the parent for every one of our new UIViewControllers (the ones we are willing to go from our tableview cell's tap):
public class CommonDataViewController: UIViewController {
//Here we are going to be putting any data we want to share with this view
var data: AnyObject?
}
2.- Let's create some sort of Navigation rules, just to be organised ;-)
enum Navigation: Int {
case vc1 = 0, vc2 = 1, vc3 = 2, vc4 = 3
//How many rules we have (for not to exceed this number)
static let definedNavigations = 4
//This must return the identifier for this view on the Storyboard
func storyboardIdentifier() -> String {
//for this example's sake, we have a common prefix for every new view controller, if it's not the case, you can use a switch(self) here
return "locationVC_\(self.rawValue + 1)"
}
}
Now, let's build upon previous code:
3.- For clarity, let's change a little our previous LocationVC (that for this example, will have an Storyboard Identifier with the text "locationVC_1")
class LocationVC: CommonDataViewController {
#IBOutlet weak var fromWhereLabel: UILabel!
//This is optional, but improves clarity..here we take our AnyObject? variable data and transforms it into the type of data this view is excepting
var thisVCReceivedData: String? {
return data as? String
}
override func viewWillAppear(animated: Bool) {
if let textToShow = thisVCReceivedData {
fromWhereLabel.text = textToShow
}
}
}
4.- Now, we trigger all of this in our didSelectRowAtIndexPath function.
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
//Just to avoid tapping on a cell that doesn't have an UIViewController asociated
if Navigation.definedNavigations > indexPath.row {
//The view's instance on our Navigation enum to which we most go after tapping this cell
let nextView = Navigation(rawValue: indexPath.row)!
//The identifier of the destination CommonDataViewController's son in our Storyboard
let identifier = nextView.storyboardIdentifier()
//If everything exists...
if let subjectCell = tableView.cellForRowAtIndexPath(indexPath), let destinationViewController = navigationController?.storyboard?.instantiateViewControllerWithIdentifier(identifier) as? CommonDataViewController {
//here you can use a switch around "nextView" for passing different data to every View Controller..for this example, we just pass same String to everyone
if let text = subjectCell.textLabel?.text {
destinationViewController.data = text
} else {
destinationViewController.data = "Tapped Cell's textLabel is empty"
}
navigationController?.pushViewController(destinationViewController, animated: true)
}
}
}
Notice that you can achieve same results using protocols and delegate approach, this is just simpler to explain
Well to push a view controller in a UINavigationController you just use this code:
ViewController *viewController = [self.navigationController.storyboard instantiateViewControllerWithIdentifier:#"locationVC"];
[self.navigationController pushViewController:viewController animated:YES];
The method you are looking for is this one:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
ViewController *viewController = [self.navigationController.storyboard instantiateViewControllerWithIdentifier:#"locationVC"];
[self.navigationController pushViewController:viewController animated:YES];
}
You could use prepareForSegue method. You just need to set up the destination view. or the didselectrowatindexpath
prepareForSegue code looks like :
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "nameofTheSegue"
{
if let destinationVC = segue.destinationViewController as? OtherViewController{
// do whatever you want with the data you want to pass.
}
}
}
I'm encountering problems with my UITableViewCells. I connected my UITableView to a API to populate my cells.
Then I've created a function which grabs the indexPath.row to identify which JSON-object inside the array that should be sent to the RestaurantViewController.
Link to my Xcode Project for easier debugging and problem-solving
Here's how my small snippet looks for setting the "row-clicks" to a global variable.
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
i = indexPath.row
}
And here's my prepareForSegue() function that should hook up my push-segue to the RestaurantViewController.
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if segue.identifier == "toRestaurant"{
let navigationController = segue.destinationViewController as UINavigationController
let vc = navigationController.topViewController as RestaurantViewController
vc.data = currentResponse[i] as NSArray
}
}
And here's how I've set up my segue from the UITableViewCell
Here's my result, I've tried to click every single one of these cells but I won't be pushed to another viewController...I also don't get an error. What is wrong here?
Tried solutions that won't work
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if segue.identifier == "toRestaurant"{
let vc = segue.destinationViewController as RestaurantViewController
//let vc = navigationController.topViewController as RestaurantViewController
vc.data = currentResponse[i] as NSArray
}
}
The problem is that you're not handling your data correctly.
If you look into your currentResponse Array, you'll see that it holds NSDictionaries but in your prepareForSegue you try to cast a NSDictionary to a NSArray, which will make the app crash.
Change the data variable in RestaurantViewController to a NSDictionary and change your prepareForSegue to pass a a NSDictionary
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if let cell = sender as? UITableViewCell {
let i = redditListTableView.indexPathForCell(cell)!.row
if segue.identifier == "toRestaurant" {
let vc = segue.destinationViewController as RestaurantViewController
vc.data = currentResponse[i] as NSDictionary
}
}
}
For Swift 5
func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if let cell = sender as? UITableViewCell {
let i = self.tableView.indexPath(for: cell)!.row
if segue.identifier == "toRestaurant" {
let vc = segue.destination as! RestaurantViewController
vc.data = currentResponse[i] as NSDictionary
}
}
}
The following steps should fix your problem. If not, please let me know.
Remove your tableView(tableView, didSelectRowAtIndexPath:) implementation.
Make data on RestaurantViewController have type NSDictionary!
Determine the selected row in prepareForSegue:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if let cell = sender as? UITableViewCell {
let i = tableView.indexPathForCell(cell)!.row
if segue.identifier == "toRestaurant" {
let vc = segue.destinationViewController as RestaurantViewController
vc.data = currentResponse[i] as NSDictionary
}
}
}
Dropbox link to stack3 directory
I am having difficulty understanding why your software is much different than a standard 2 level tableview structure. So I coded a short example which you can access from this link. I have also included the sources code below.
The program mimics what you have (as best as I understood it). Table Controller 1 segues to Table Controller 2 from the tableview cell. I had no issues with segue-ing. Notice that I do not have nor need to augment the Storybook to initiate the segue.
I have embedded both the controllers in Navigation Controllers. My experience is that it saves a lot of effort to set up the navigation.
Alternately, I could have control-dragged from the first TableViewController symbol on top of the screen to the second controller and set up the segue.
I used a global variable (selectedRow) although it is not a recommend practice. But you just as easily use the prepareForSegue to set a variable in the RestaurantTableViewController (I show an example)
Finally, I recommend checking the Connections Inspector (for the table view cell in the first controller) to confirm that there is a segue to the second controller. If you control-dragged properly there should be confirmation prompt as well as an entry in the Connections Inspector.
Unfortunately I just cant get the code properly formatter
import UIKit
var selectedRow = -1
class TableViewController: UITableViewController {
var firstArray = ["Item1","Item2","Item3","Item4"]
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return firstArray.count
}
let nameOfCell = "RestaurantCell"
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(nameOfCell, forIndexPath: indexPath) as UITableViewCell
cell.textLabel!.text = firstArray[indexPath.row]
return cell
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
selectedRow = indexPath.row
}
// MARK: - Navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let vc = segue.destinationViewController as RestaurantTableViewController
// can write to variables in RestaurantTableViewController if required
vc.someVariable = selectedRow
}
}
import UIKit
class RestaurantTableViewController: UITableViewController {
var secondArray = ["Item 2.1", "Item 2.2", "Item 2.3", "Item 2.4"]
var someVariable = -1
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return secondArray.count
}
let nameOfCell = "RestaurantCell"
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(nameOfCell, forIndexPath: indexPath) as UITableViewCell
cell.textLabel!.text = secondArray[indexPath.row]
if indexPath.row == selectedRow {
cell.textLabel!.text = cell.textLabel!.text! + " SELECTED"
}
return cell
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
selectedRow = indexPath.row
}
}
I noticed that in your screenshot of your storyboard, the segue is connecting the first prototype cell to the RestaurantViewController. This prototype cell looks like it's the "Basic" style of cell with a disclosure indicator accessory on the right. But look at the screenshot of your app running. The table is being populated with cells that appear to be the "Subtitle" style of cell without a disclosure indicator accessory on the right.
The reason that your segue is never firing no matter what you do is that the segue is only configured to work for a specific prototype cell, but that prototype cell is never being used when you populate the table. Whatever you're doing in tableView:cellForRowAtIndexPath:, you're not using the prototype cell that you want.
#Starscream has the right idea dequeueing the right cell with the right identifier and matching it with the identifier of the prototype cell in Interface Builder. The crash that you're getting even after doing that might be because of the previous problem mentioned in the comments above. Your segue in the storyboard is clearly pointing to a UITableViewController. Your code in prepareForSegue:sender: should be let vc = segue.destinationViewController as RestaurantViewController, as long as RestaurantViewController is a subclass of UITableViewController. You'll crash if you try to cast it as a UINavigationController. Also make sure that the class for the destination UITableViewController in the storyboard is listed as RestaurantController in the Identity Inspector pane. You'll crash if your program compiles thinking that the storyboard just contains a generic UITableViewController there.
Getting back to the original problem more, I don't know how you've implemented tableView:cellForRowAtIndexPath:, which might be crucial. Maybe it's not so simple. Maybe you plan on handling many prototype cells or generate custom cells at runtime. In this case, one way to make this simple for you is to programmatically perform the segue when the user taps on a cell. Instead of using a specific prototype cell, make the segue a connection originating from the "Restauranger nära mig" UITableViewController going to the RestaurantViewController. (Connect in Interface Builder by control-click dragging from the Table View Controller icon at the top of the first one over to the body of the second). You must give this segue an identifier in the Attributes Inspector pane to make this useful. Let's say it's "toRestaurant". Then at the end of your tableView:didSelectRowAtIndexPath: method, put this line of code: self.performSegueWithIdentifier("toRestaurant", sender: self). Now no matter what cell is selected in the table, this segue will always fire for you.
Try creating cells like this in your cellForRow method:
let cell: UITableViewCell = tableView.dequeueReusableCellWithIdentifier("MyTestCell", forIndexPath: indexPath)
Im going out on a whim here since I am just getting into swift right now but the way I do it in my prepareForSegue() is something like this:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if segue.identifier == "toRestaurant"{
let navigationController = segue.destinationViewController as UINavigationController
let vc = navigationController.topViewController as RestaurantViewController
//notice I changed [i] to [index!.row]
vc.data = currentResponse[index!.row] as NSArray
}
}
What it looks like to me is that you are calling the i variable which is kind of like a private variable inside a method of your class. You can do something like #Syed Tariq did with the selectRow variable and set it above your class SomeController: UIViewController /*, maybe some more here? */ { and then sign the variable inside your
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
selectedRow = indexPath.row
}
method like above but both ways should work rather well.
I had the same problem and I found the solution to be:
performSegueWithIdentifier("toViewDetails", sender: self)
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
var cellnumber = procMgr.processos[indexPath.row].numero
println("You selected cell #\(indexPath.row)")
println(cellnumber)
performSegueWithIdentifier("toViewDetails", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "toViewDetails" {
let DestViewController : ViewDetails = segue.destinationViewController as! ViewDetails
}
}
You may need to get the selected cell index of the UItableview. Below code used the selected cell index (UItableview.indexPathForSelectedRow) to get a correct element of the array.
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if segue.identifier == "seguaVisitCardDetial" {
let viewController = segue.destinationViewController as! VCVisitCardDetial
viewController.dataThisCard = self.listOfVisitCards[(tblCardList.indexPathForSelectedRow?.row)!]
}
}
I had this problem, too; the segue from UITableViewCell did not call.
After some searching, I found it is because I had chosen "No Selection" for "Selection" field.