How to fix "nib but didn't get a UITableView" error? - ios

Why I get this error?
Terminating app due to uncaught exception
'NSInternalInconsistencyException', reason: '-[UITableViewController
loadView] loaded the "pB1-re-lu8-view-o7U-YG-E7m" nib but didn't get a
UITableView.'
here is my code:
class FriendListTableViewController: UITableViewController{
var objects = NSMutableArray()
var dataArray = [["firstName":"Debasis","lastName":"Das"],["firstName":"John","lastName":"Doe"],["firstName":"Jane","lastName":"Doe"],["firstName":"Mary","lastName":"Jane"]]
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table View
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dataArray.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! UITableViewCell
let object = dataArray[indexPath.row] as NSDictionary
(cell.contentView.viewWithTag(10) as! UILabel).text = object["firstName"] as? String
(cell.contentView.viewWithTag(11) as! UILabel).text = object["lastName"] as? String
return cell
}
override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
// Return false if you do not want the specified item to be editable.
return false
}
my storyboard is like this:

I have face same issue once upon time, and So stupid mistake it was, I have subclass the UITableViewController, where I have added UITableView in UIViewController
From your storyboard Image, it may be solved if you use UIViewController instead of UITableViewController, Just try that way can solve your issue,like
class FriendListTableViewController: UIViewController, UITableViewDataSource, UITableViewDelegate

SWIFT 2 UPDATE
I tried #Viralsavaj's answer but it didn't work for me until I "hooked up" the tableView as an outlet from the storyboard in the ViewController.
like this: #IBOutlet weak var tableView: UITableView!
Also add this to your class as #Viralsavaj mentioned:
class TableViewController: UIViewController, UITableViewDataSource, UITableViewDelegate
I used specifically this link help as well: How to reference tableView from a view controller during a segue
Just drag your tableView into the ViewController and make it an outlet. Then you can reference its properties such as self.tableView.reloadData().
This property as well as others that referenced the tableView were giving me errors until I added the tableView as a referencing outlet.
Hope this helps those in the future.

I had this issue with Swift 2, Xcode 7.2, I changed a View Controller I dragged to my Storyboard to a custom UITableViewController class, I then dragged a Table View onto the View Controller. I didn't realize I placed it as a child of the View that was part of the original View Controller I dragged onto the Storyboard.
I simply deleted the View and added the Table View again as the first child of the Super View.

Related

Dynamic Tableview inside a Static tableview Cell

I wanna populate a dynamic tableview inside a static tableview cell, by the same class for both of these.
As you can see in the picture under the cell 'GRE Test Information'.
I'm using the code inside the the class named as MenuController, which is a tableview controller.
class MenuController: UITableViewController,MFMailComposeViewControllerDelegate {
#IBOutlet weak var tablle: UITableView!
var items = [String]()
override func viewDidLoad() {
super.viewDidLoad()
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
items = ["A "," BB "]
tablle.delegate = self
tablle.dataSource = self
self.tablle.registerClass(MainTableViewCell.self, forCellReuseIdentifier: "cellNew")
}
// Table Data Source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 2
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath)
-> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cellNew", forIndexPath: indexPath) as! MainTableViewCell
print("Aasim Khaan")
cell.customCell01.text = items[indexPath.row]
return cell
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
But it's not populating that at runtime, and says
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'unable to dequeue a cell with identifier cellNew - must register a nib or a class for the identifier or connect a prototype cell in a storyboard'
However I'm using the same identifier named as cellNew both in the code and storyboard.
Well after astonishing efforts regarding this one, I've found the solution.
Concerning the following:
Swift: TableView within Static UITableViewCell
Where the problem solver says : As far as I can determine by experimenting with this, you can't use the same UITableViewController as the data source and delegate of both table views. With a static table view, you're not supposed to implement the data source methods at all. The strange thing is, even if I disconnect the data source and delegate connections between my static table view and the table view controller, that table view still calls numberOfRowsInSection in my table view controller class. If I explicitly set the data source to nil in code, that stops it from calling the data source methods, but the embedded dynamic table view also fails to call them, so this structure doesn't work.
However, you can get around this by using a different object to be the data source and delegate of your embedded dynamic table view. Make an IBOutlet for your embedded table view, and set its data source and delegate to this new object (The class is DataSource in this example, and it's a subclass of NSObject).
I've modified my code in this way now :
import Foundation
import UIKit
import MessageUI
class DataSource: NSObject, UITableViewDataSource, UITableViewDelegate {
var items : [String] = ["GRE Test Structure ","GRE Score "]
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1;
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 2;
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cellNew", forIndexPath: indexPath) as! MainTableViewCell
cell.customCell01.text = items[indexPath.row]
return cell
}
}
class MenuController: UITableViewController,MFMailComposeViewControllerDelegate {
#IBOutlet var tablle0: UITableView!
#IBOutlet weak var tablle: UITableView!
var dataSource = DataSource()
override func viewDidLoad() {
super.viewDidLoad()
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem =
self.editButtonItem()
tablle.delegate = dataSource
tablle.dataSource = dataSource
}
}
Now it works exactly fine.
in viewDidLoad
// First Register the UITableViewcell class from nib
let cellNib = UINib(nibName: "MainTableViewCell", bundle: bundle)
self.tableView.registerNib(cellNib, forCellReuseIdentifier:"cellNew")
Then Check with below screeshots
STEP 1: Select MainTableViewCell from Identity Inspector-Custom Class-Click Class Drop Down arrow.It shows you list.From that you can click the MainTableViewCell
STEP 2:Once you click that it shows the name with selected table view cell.
While the existing answers explain how you can do this, they don't address whether you should do this. From the example you provided, it seems that all you need is a single UITableView with multiple dynamic cell types. Each cell type can specify its contentInsets to indent the content as needed.
Terminating app due to uncaught exception
'NSInternalInconsistencyException', reason: 'unable to dequeue a cell
with identifier cellNew - must register a nib or a class for the
identifier or connect a prototype cell in a storyboard'
However I'm using the same identifier named as cellNew both in the
code and storyboard.
You're getting this error because you are dequeing/retrieving the prototype cell from the wrong table!
The line in your cellForRowAtIndexPath should be:
let cell = tablle.dequeueReusableCellWithIdentifier("cellNew", forIndexPath: indexPath) as! MainTableViewCell
Having said that, even once that is working, asking a tableViewController to act as data source and delegate for both a static and a dynamic table causes problems later.

getting a table view in viewController

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.

performSegueWithIdentifier doesn't work - Swift

Im trying to use performSegueWithIdentifier when user taps in a row of a table view. How ever, it doesn't work and i have the next error:
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not perform segue with identifier 'categoriesS'. A segue must either have a performHandler or it must override -perform.'
I googled the error, but i don't find anything. I've already create the push segues in the storyboard and set them the identifiers that I use in my code.
This is my code(PD: Im using this tableview, as a side bar menu):
import Foundation
class menuVC: UIViewController,UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var ProfileImage: UIImageView!
#IBOutlet weak var myTable: UITableView!
var opciones = [String]()
var segues = [String]()
override func viewDidLoad() {
super.viewDidLoad()
myTable.delegate = self
opciones = ["Categories","My Coins","Get Coins","Share","LogOff","Exit"]
segues = ["categoriesS","myCoinsS","getCoinsS"]
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 6
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
print(opciones[indexPath.row])
self.performSegueWithIdentifier(segues[indexPath.row], sender: self)
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell
cell.textLabel?.text = opciones[indexPath.row]
return cell
}
}
Thanks!
You have given a wrong segue as console clearly stated that. You are looking for 'categoriesS' which is in 'segue' array, but you are passing from 'opciones' array. Look closely.
Edit
I saw your edit, looks like u have populate your table using different array, but u have used other array in didselectrow.please check it

Swift Custom UITableViewCell not displaying data

I am new to Swift, and iOS development in general. I am attempting to create a custom UITableViewCell. I have created the cell in my main storyboard on top of a UITableView that is inside a UIViewController. When I loaded one of the default cells, I was able to populate it with data. However, now that I am using a custom cell, I cannot get any data to appear in the table. I have gone through all kinds of tutorials and questions posted on the internet, but I can't figure out why it is not working. Any help would be appreciated.
Here is my code for the UIViewController that the tableview resides in.
import UIKit
class FirstViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var tblView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
//self.tblView.registerClass(UITableViewCell.self, forCellReuseIdentifier : "Cell")
self.tblView.registerClass(CustomTableViewCell.self, forCellReuseIdentifier : "Cell")
tblView!.delegate = self
tblView!.dataSource = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dataMgr.data.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell : CustomTableViewCell = self.tblView.dequeueReusableCellWithIdentifier("Cell", forIndexPath : indexPath) as! CustomTableViewCell
var values = dataMgr.data[indexPath.row]
cell.newTotalLabel?.text = "\(values.newTotal)"
cell.winLoseValueLabel?.text = "\(values.newTotal - values.currentTotal)"
cell.dateLabel?.text = "5/17/2015"
return cell
}
}
I have stepped through the program where it is assigning values to the cell variables. The variable 'values' is being populated with data, but when stepping over the assignment lines to the cell variables, I found that they are never assigned. They all remain nil.
When you make a custom cell in the storyboard, don't register the class (or anything else). Just be sure to give the cell the same identifier in the storyboard that you pass to dequeueReusableCellWithIdentifier:forIndexPath:.

Swift: How to load external array to my UITableView

I am learning Swift and I have pattern that I used to do in Objective C, but don't understand how to do it here.
I have UIViewController with TableView. I works fine when I put my array inside it. But according to MVC I want to move my array with data to another class. And I have no idea how to do it. Everything I tried doesn't work.
Thank you!
My code, how to move tableDS outside:
import UIKit
class MyViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var tableView: UITableView!
//temp table data
let tableDS = ["fdf", "dfd"]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
tableView.delegate = self
tableView.dataSource = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return tableDS.count
}
let textCellIdentifier = "TableViewCell"
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell: MyCell = tableView.dequeueReusableCellWithIdentifier(textCellIdentifier, forIndexPath: indexPath) as MyCell
let row = indexPath.row
cell.dayLabel.text = tableDS[row]
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
tableView.deselectRowAtIndexPath(indexPath, animated: true)
let row = indexPath.row
println(tableDS[row])
}
}
func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell! {
var cell : UITableViewCell = tableView.dequeueReusableCellWithIdentifier("cell") as UITableViewCell
cell.textLabel.text = tableDS[indexPath.row]
return cell
}
This should work.
If you want to use the MVC pattern, create a new singleton class, create the array there, then create a method returning the array.
First you need to initialize your table view with an empty array. When you load your MyViewController from another view controller in the code example below you can pass your data, and change your let tableDS = [“fdf”, “dfd”] to var tableDS = [“fdf”, "dfd"]. let is used for a constant variables.
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "YourMyViewControllerSequeId" {
let myViewController = segue.destinationViewController as MyViewController
var myArrayToPass = ["learn swift", "or get a life"];
myViewController.tableDS = myArrayToPass
myViewController.tableView.reloadData()
}
}
In the MVC design pattern for a table view the table view is the view object. The controller is the view controller.
The model is whatever you use to store your data.
The controller object serves as an intermediary between the model and the view.
For a simple table view the model object can be a as simple as an array. The array is the model. Thus there is no reason to store the data in a separate object.
If you really want to make your model a completely different object, create a new class. Call it MyTableViewModel. Make your MyTableViewModel class contain an array of your data. Also make MyTableViewModel conform to the UITableViewDatasource protocol. To do that, you'll have to implement several methods - in particular, cellForRowAtIndexPath.
Now in your view controller, create a MyTableViewModel object as a strong property of your view controller, install the array in it, and make it the data source of the table view.
Done.
Again, though, it's quite common to just treat a simple array as your model, and let the view controller serve up cells by implementing cellForRowAtIndexPath in the view controller.

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