Xib for UITableViewCell - ios

I want to use a Xib for use as a View for a UITableViewCell. But i'm unsure if i'm doing it the right way (i'm not sure if its dequeuing the cells)
Option #1 where i can call the method "test"
Option #1:
class MainMenuVC: UIViewController {
#IBOutlet weak var tableView: UITableView!
let nib = UINib(nibName: "MenuEntryRomaView", bundle: nil)
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.registerNib(nib, forCellReuseIdentifier: "cell") // Im guessing this line actually doesnt apply here...
}
#IBAction func test(sender: AnyObject) {
println("go!")
}
}
extension MainMenuVC: UITableViewDataSource {
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = nib.instantiateWithOwner(self, options: nil).first as MenuEntryView
cell.menuImageView.image = UIImage(named: "close_button")
cell.menuLabel.text = "Texto de menu"
return cell
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1000
}
}
However i found another solution in this post:
Assigning the outlet for a UITableViewCell using UINib
And could apply in my example like this:
Option 2
class MainMenuVC: UIViewController {
#IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
let nib = UINib(nibName: "MenuEntryRomaView", bundle: nil)
self.tableView.registerNib(nib, forCellReuseIdentifier: "cell")
}
#IBAction func test(sender: AnyObject) {
println("go!")
}
}
extension MainMenuVC: UITableViewDataSource {
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCellWithIdentifier("cell") as MenuEntryView
cell.menuImageView.image = UIImage(named: "close_button")
cell.menuLabel.text = "Texto de menu"
return cell
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1000
}
}
But im no setting the owner anywhere in this solution, and when i call the method "test" from the xib i get an error. I tried to do nib.instantiateWithOwner(self, options: nil)
after instantianting the nib UINib(nibName..) but with no succeed. Notice i tried both code on the phone with 1k rows and i'm not experiencing any kind of lag (5s). My questions would be: in #option 1 its really dequeing the cells? and what can i do in option 2 to set the owner to MainMenuVC to be able to call the method test from the cells?
UPDATE
Here is a link with a sample project i created, im trying to call from the button inside the cell a method inside the VC.
http://www.ruiznadal.com/TestXibCell.zip

Related

I was wondering how to make a cell go to another view controller in Xcode 9, swift

I've been trying to figure out how to configure a cell to go to another view, in this case, I'm listing a group of services after login and when the user taps on a service they like, it takes them to a map. But I don't know how to set the cell up in a way that it takes them to the map when its tapped. I've tried creating a segue but nothing happens when the cell is tapped. I'm new to programming and was wondering if someone could explain this.
I've watched a bunch of youtube videos which gave me the understanding on how to set up the cell (basic stuff).
Would really appreciate some advice, thanks!
Hope this post helps anyone that's dipping their feet into the programming journey!
Thank you, happy coding!
Here is the code I currently have:
import UIKit
struct cellData {
let cell : Int!
let text : String!
let image : UIImage! }
class ListServicesTVC: UITableViewController {
var arrayOfCellData = [cellData]()
override func viewDidLoad() {
arrayOfCellData = [cellData(cell : 1, text : "Barber Services", image : #imageLiteral(resourceName: "barberservice") ),
cellData(cell : 2, text : "Salon Services", image : #imageLiteral(resourceName: "salonservice"))]
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arrayOfCellData.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if arrayOfCellData[indexPath.row].cell == 1 {
let cell = Bundle.main.loadNibNamed("BarberServiceCell", owner: self, options: nil)?.first as! BarberServiceCell
cell.barberImageView.image = arrayOfCellData[indexPath.row].image
cell.barberServicesLabel.text = arrayOfCellData[indexPath.row].text
return cell
}
else if arrayOfCellData[indexPath.row].cell == 2 {
let cell = Bundle.main.loadNibNamed("SalonServicesCell", owner: self, options: nil)?.first as! SalonServicesCell
cell.salonImageView.image = arrayOfCellData[indexPath.row].image
cell.salonServicesLabel.text = arrayOfCellData[indexPath.row].text
return cell
}
else {
let cell = Bundle.main.loadNibNamed("BarberServiceCell", owner: self, options: nil)?.first as! BarberServiceCell
cell.barberImageView.image = arrayOfCellData[indexPath.row].image
cell.barberServicesLabel.text = arrayOfCellData[indexPath.row].text
return cell
}
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
if arrayOfCellData[indexPath.row].cell == 1 {
return 120
}
else if arrayOfCellData[indexPath.row].cell == 2 {
return 120
}
else {
return 120
}
}
}
Just follow the steps below:
create A tableView Outlet in ViewController Class.
create a TableViewCell Class and register with tableView Outlet.
then, create a DetailViewController Class ( i.e, When You click on a particular cell, it should show details of that particular cell)
In main "ViewController" do the following code
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {'
#IBOutlet var tableView: UITableView!
var tableData: [String] = ["Apple", "Samsung", "LG"]
// 1
override func viewDidLoad() {
super.viewDidLoad()
// Register customCell with tableView Outlet
let nib = UINib(nibName: "CustomTableViewCell", bundle: nil)
tableView.registerNib(nib, forCellReuseIdentifier: "cell")
}
// 2
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.tableData.count
}
// 3
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell: CustomTableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as! CustomTableViewCell
// injecting data to cell
cell.lblCompanyName.text = tableData[indexPath.row]
cell.imgCompanyName.image = UIImage(named: tableData[indexPath.row])
return cell
}
// 4
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let detailObj=DetailViewController(nibName: "DetailViewController", bundle: nil)
self.navigationController?.pushViewController(detailObj, animated: true)
detailObj.nameVar=tableData[indexPath.row]
detailObj.imgStr=tableData[indexPath.row]
}
In "CustomTableViewCell" class
class CustomTableViewCell: UITableViewCell {
#IBOutlet var imgCompanyName: UIImageView!
#IBOutlet var lblCompanyName: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}}
in "DetailViewController"
class DetailViewController: UIViewController {
#IBOutlet var name: UILabel!
#IBOutlet var image: UIImageView!
var nameVar:String?
var imgStr:String?
override func viewDidLoad() {
name.text=nameVar
image.image=UIImage(named: imgStr!)
super.viewDidLoad()
// Do any additional setup after loading the view.
}}
End of the Code
I think I am clear, if you have any quires just comment below.
Hi try the following set of code, I have added few additional changes in your code which is necessary for passing the details, I hope it will solve your issue.
I have added only the extra codes which you needed
class ListServicesTVC: UITableViewController {
// Add this variable in this class and use it whereever you needed it in this class
var selectedItem: cellData?
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
// Now maintain the selected data in the local variable we declared
selectedItem = arrayOfCellData[indexPath.row]
// Now perform the segue operation
performSegue(withIdentifier: "VIEW_CONTROLLER_IDENTIFIER_OF_MAP_CLASS", sender: self)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "VIEW_CONTROLLER_IDENTIFIER_OF_MAP_CLASS" {
let destinationVC = segue.destination as? VIEW_CONTROLLER_IDENTIFIER_OF_MAP_CLASS
destinationVC?.selectedItem = self.selectedItem // Pass the selected item here which we have saved on didSelectRotAt indexPath delegate
}
}
In Second class:
class VIEW_CONTROLLER_IDENTIFIER_OF_MAP_CLASS: UIViewController {
// Add this variable in this class and use it whereever you needed it in this class
var selectedItem: cellData?

How can I display multiple string values to multiple labels in a custom TableView Cell in swift ios?

var leadername = ["1","2","3","4"]
var districts = ["Delhi","Kerala"]
override func viewDidLoad() {
leadTableSetup()
super.viewDidLoad()
}
func leadTableSetup(){
LeadTableView.delegate = self
LeadTableView.dataSource = self
self.LeadTableView.register(UINib(nibName: "LeaderBoardTableViewCell", bundle: nil), forCellReuseIdentifier: "leadCell")
}
func numberOfSections(in tableView: UITableView) -> Int {
return 5
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 14
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "leadCell") as! LeaderBoardTableViewCell
// Set text from the data model
cell.areaLbl.text = districts[indexPath.row]
cell.leaderNameLbl.text = leadername[indexPath.row]
return cell
}
I have declared two strings and I need to display these strings in the labels in my custom collection view cell that I have created. How can I achieve this? I need to display "leadername" string in one label and "districts" label in another label.
Go with this demo, Shared Demo
After the demo, If you still face any problem then let me know.
Now Listen Here
I think you need output something like this,
Follow the steps: -
Create a new viewcontroller(says, CustomTableVC) in your storyboard and one UITableView(give constraints and delegate to its own class), take outlet of UItableView (says, tblMyCustom)
Now press CLT+N for new file and do like this below image, Subclass - UItableViewCell and also tick on XIB option.
Open our xib file, add new UIView (says myView, as you see highted in below image), in this myView add two labels
Now take outlet of these two labels in its customCell class
class CustomTableCell: UITableViewCell {
#IBOutlet var lblLeaderNo: UILabel!
#IBOutlet var lblDistict: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
Now back to your Viewcontroller Class
import UIKit
class CustomTableVC: UIViewController , UITableViewDelegate, UITableViewDataSource{
#IBOutlet var tblMyCustom: UITableView!
var leaderno : [String]!
var distict : [String]!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.tblMyCustom.register(UINib(nibName: "CustomTableCell", bundle: nil), forCellReuseIdentifier: "customCell")
self.leaderno = ["1", "2", "3", "4"]
self.distict = ["Delhi","Kerala", "Haryana", "Punjab"]
// above both array must have same count otherwise, label text in null
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{
return leaderno.count;
}
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell{
var customCell: CustomTableCell! = tableView.dequeueReusableCell(withIdentifier: "customCell") as? CustomTableCell
customCell.lblLeaderNo.text = self.leaderno[indexPath.row]
customCell.lblDistict.text = self.distict[indexPath.row]
return customCell
}
}
above all is code of VC, it is not getting settle down here in single code format, I dont know why.
Now, follow these steps you get output as i show you image in starting of the procedure.

UITableViewCell's contents' alpha changes on its own

I've got a simple ViewController -- let's call it SettingsViewController -- which contains a UITableView with some custom cells containing a UILabel.
Whenever I load said SettingsViewController the UILabel inside the 1st cell gets its alpha set to some small number on its own, I don't ever change the value of any alphas. Also, the highlighting works as expected on pressing the cells. Sometimes, when I return to SettingsViewController from a different one, it's a different random cell, possibly 2 or 3 cells.
Here's a gif of what happens when I first load the SettingsViewController:
I'm using Swift 2.0 with Xcode 7.0.1 and running this code on iOS 8.4.1 as well as 9. I've also seen this happen in a UICollectionView with cells containing only a UIImageView - in that case it was the UIImageView whose alpha would get changed.
Here's my code for the SettingsViewController:
class SettingsViewController: BronzeBaseViewController {
#IBOutlet var settingsTable: UITableView!
private let textCellIdentifier = "Cell"
private let settingsList = ["Account Details", "About this App", "Terms of Service", "Privacy Policy"]
override func viewDidLoad() {
super.viewDidLoad()
self.settingsTable.delegate = self
self.settingsTable.dataSource = self
}
}
// MARK: - UITableViewDataSource methods
extension SettingsViewController: UITableViewDataSource {
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(self.textCellIdentifier, forIndexPath: indexPath) as! SettingsTableViewCell
let row = indexPath.row
cell.titleLabel.text = self.settingsList[row]
cell.titleLabel.tag = row
cell.backgroundColor = getBackgroundColor()
return cell
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.settingsList.count
}
}
// MARK: - UITableViewDelegate methods
extension SettingsViewController: UITableViewDelegate {
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
switch(indexPath.row) {
case 0 :
self.performSegueWithIdentifier("accountDetailsSegue", sender: self)
case 1:
self.performSegueWithIdentifier("legalViewSegue", sender: self)
case 2:
self.performSegueWithIdentifier("legalViewSegue", sender: self)
case 3:
self.performSegueWithIdentifier("legalViewSegue", sender: self)
default:
}
tableView.deselectRowAtIndexPath(indexPath, animated: true)
}
}
And here's the class I'm using for the actual cells:
class SettingsTableViewCell: UITableViewCell {
#IBOutlet var titleLabel: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
let titleFont = UIFont(name: "ProximaNovaSoft-Regular", size: self.titleLabel.font.pointSize)
self.titleLabel.font = titleFont
}
}
Any idea what might be causing this and how to fix it properly?

Display the same content in UITableView included in custom UITableViewCell

I have an issue with UITableView inserted in a UITableViewCell. This is my custom cell:
Everything works fine for the first, second and third cells, but from the fourth cell for the content of the UITableView inserted in cell is used always the same rows of the first, second and third cells alternatively. Instead the labels outside the UITableView are correctly displayed in every cells. This is my code for the custom cell class:
import UIKit
class SimulazioneQuestionTableViewCell: UITableViewCell, UITableViewDelegate, UITableViewDataSource {
let cellIdentifier = "simRisposteCell"
var arrayRisposte = [Risposta]()
#IBOutlet var numeroLabel: UILabel!
#IBOutlet var domandaLabel: UILabel!
#IBOutlet var risposteTableView: UITableView!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
var nib = UINib(nibName: "SimulazioneQuestionAnswerTableViewCell", bundle: nil)
self.risposteTableView.registerNib(nib, forCellReuseIdentifier: self.cellIdentifier)
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arrayRisposte.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier) as SimulazioneQuestionAnswerTableViewCell
cell.textLabel?.text = arrayRisposte[indexPath.row].testo
return cell
}
}
And this is my view controller:
import UIKit
class SimulazioneViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var areaSimulazione: Int = Int()
var arrayDomande = [Domanda]()
var arrayRisposte = [[Risposta]]()
var cellIdentifier = "domandaSimulazioneCell"
#IBOutlet var tempoTrascorso: UILabel!
#IBOutlet var simulazioneTableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
arrayDomande = ModelManager.instance.getSimulazione(area: areaSimulazione)
var nib = UINib(nibName: "SimulazioneQuestionTableViewCell", bundle: nil)
self.simulazioneTableView.registerNib(nib, forCellReuseIdentifier: self.cellIdentifier)
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arrayDomande.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell: SimulazioneQuestionTableViewCell = simulazioneTableView.dequeueReusableCellWithIdentifier(self.cellIdentifier) as SimulazioneQuestionTableViewCell
var domanda: Domanda = arrayDomande[indexPath.row]
var rispXDomanda = ModelManager.instance.getAnswersForQuestion(domanda.numero)
cell.numeroLabel.text = String(domanda.numero)
cell.domandaLabel.text = domanda.testo
cell.arrayRisposte = rispXDomanda
return cell
}
Some advice to resolve this issue?
Thank you guys!
I never had the idea of putting a UITableView inside a UITableViewCell and therefore would have approached this from a different direction. I'm not saying the table inside a cell is impossible or a bad idea, but the following approach might actually be easier.
My understanding is that your table view shows a number of questions, and each question has possible answer right below it.
I'd use one section per question, with the first row using a custom cell that shows the numeroLabel and the domandaLabel (basically SimulazioneQuestionTableViewCell without the table), and then put the answers into the remaining rows for the section.
private let QuestionCellIdentifier = "QuestionCell"
private let AnswerCellIdentifier = "AnswerCell"
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return arrayDomande.count
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
let rispXDomanda = ModelManager.instance.getAnswersForQuestion(domanda.numero)
return 1 + rispXDomanda.count // one extra for the question
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let domanda = arrayDomande[indexPath.section]
switch indexPath.row {
case 0:
let cell = tableView.dequeueReusableCellWithIdentifier(QuestionCellIdentifier) as SimulazioneQuestionTableViewCell
cell.numeroLabel.text = String(domanda.numero)
cell.domandaLabel.text = domanda.testo
return cell
default:
let cell = tableView.dequeueReusableCellWithIdentifier(AnswerCellIdentifier) as SimulazioneQuestionAnswerTableViewCell
let rispXDomanda = ModelManager.instance.getAnswersForQuestion(domanda.numero)
cell.textLabel?.text = rispXDomanda[indexPath.row - 1].testo
return cell
}
It might be a good idea to cache the answers that you get from ModelManager. It depends on how expensive it is to get them - with the code above getAnswersForQuestion() will be called a lot.
Edit: I personally like the .Grouped style for the table view. Using a section per question will nicely separate them visually.

Custom UITableViewCell from nib in Swift

I'm trying to create a custom table view cell from a nib. I'm referring to this article here. I'm facing two issues.
I created a .xib file with a UITableViewCell object dragged on to it. I created a subclass of UITableViewCell and set it as the cell's class and Cell as the reusable identifier.
import UIKit
class CustomOneCell: UITableViewCell {
#IBOutlet weak var middleLabel: UILabel!
#IBOutlet weak var leftLabel: UILabel!
#IBOutlet weak var rightLabel: UILabel!
required init(coder aDecoder: NSCoder!) {
super.init(coder: aDecoder)
}
override init(style: UITableViewCellStyle, reuseIdentifier: String!) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
}
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
In the UITableViewController I have this code,
import UIKit
class ViewController: UITableViewController, UITableViewDataSource, UITableViewDelegate {
var items = ["Item 1", "Item2", "Item3", "Item4"]
override func viewDidLoad() {
super.viewDidLoad()
}
// MARK: - UITableViewDataSource
override func tableView(tableView: UITableView!, numberOfRowsInSection section: Int) -> Int {
return items.count
}
override func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell! {
let identifier = "Cell"
var cell: CustomOneCell! = tableView.dequeueReusableCellWithIdentifier(identifier) as? CustomOneCell
if cell == nil {
tableView.registerNib(UINib(nibName: "CustomCellOne", bundle: nil), forCellReuseIdentifier: identifier)
cell = tableView.dequeueReusableCellWithIdentifier(identifier) as? CustomOneCell
}
return cell
}
}
This code complies with no errors but when I run it in the simulator, it looks like this.
In the UITableViewController in the storyboard I haven't done anything to the cell. Blank identifier and no subclass. I tried adding the Cell identifier to the prototype cell and ran it again but I get the same result.
Another error I faced is, when I tried to implement the following method in the UITableViewController.
override func tableView(tableView: UITableView!, willDisplayCell cell: CustomOneCell!, forRowAtIndexPath indexPath: NSIndexPath!) {
cell.middleLabel.text = items[indexPath.row]
cell.leftLabel.text = items[indexPath.row]
cell.rightLabel.text = items[indexPath.row]
}
As shown in the article I mentioned I changed the cell parameter's type form UITableViewCell to CustomOneCell which is my subclass of UITableViewCell. But I get the following error,
Overriding method with selector 'tableView:willDisplayCell:forRowAtIndexPath:' has incompatible type '(UITableView!, CustomOneCell!, NSIndexPath!) -> ()'
Anyone have any idea how to resolve these errors? These seemed to work fine in Objective-C.
Thank you.
EDIT: I just noticed if I change the simulator's orientation to landscape and turn it back to portrait, the cells appear! I still couldn't figure out what's going on. I uploaded an Xcode project here demonstrating the problem if you have time for a quick look.
With Swift 5 and iOS 12.2, you should try the following code in order to solve your problem:
CustomCell.swift
import UIKit
class CustomCell: UITableViewCell {
// Link those IBOutlets with the UILabels in your .XIB file
#IBOutlet weak var middleLabel: UILabel!
#IBOutlet weak var leftLabel: UILabel!
#IBOutlet weak var rightLabel: UILabel!
}
TableViewController.swift
import UIKit
class TableViewController: UITableViewController {
let items = ["Item 1", "Item2", "Item3", "Item4"]
override func viewDidLoad() {
super.viewDidLoad()
tableView.register(UINib(nibName: "CustomCell", bundle: nil), forCellReuseIdentifier: "CustomCell")
}
// MARK: - UITableViewDataSource
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CustomCell", for: indexPath) as! CustomCell
cell.middleLabel.text = items[indexPath.row]
cell.leftLabel.text = items[indexPath.row]
cell.rightLabel.text = items[indexPath.row]
return cell
}
}
The image below shows a set of constraints that work with the provided code without any constraints ambiguity message from Xcode:
Here's my approach using Swift 2 and Xcode 7.3. This example will use a single ViewController to load two .xib files -- one for a UITableView and one for the UITableCellView.
For this example you can drop a UITableView right into an empty TableNib.xib file. Inside, set the file's owner to your ViewController class and use an outlet to reference the tableView.
and
Now, in your view controller, you can delegate the tableView as you normally would, like so
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var tableView: UITableView!
...
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// Table view delegate
self.tableView.delegate = self
self.tableView.dataSource = self
...
To create your Custom cell, again, drop a Table View Cell object into an empty TableCellNib.xib file. This time, in the cell .xib file you don't have to specify an "owner" but you do need to specify a Custom Class and an identifier like "TableCellId"
Create your subclass with whatever outlets you need like so
class TableCell: UITableViewCell {
#IBOutlet weak var nameLabel: UILabel!
}
Finally... back in your View Controller, you can load and display the entire thing like so
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// First load table nib
let bundle = NSBundle(forClass: self.dynamicType)
let tableNib = UINib(nibName: "TableNib", bundle: bundle)
let tableNibView = tableNib.instantiateWithOwner(self, options: nil)[0] as! UIView
// Then delegate the TableView
self.tableView.delegate = self
self.tableView.dataSource = self
// Set resizable table bounds
self.tableView.frame = self.view.bounds
self.tableView.autoresizingMask = [.FlexibleWidth, .FlexibleHeight]
// Register table cell class from nib
let cellNib = UINib(nibName: "TableCellNib", bundle: bundle)
self.tableView.registerNib(cellNib, forCellReuseIdentifier: self.tableCellId)
// Display table with custom cells
self.view.addSubview(tableNibView)
}
The code shows how you can simply load and display a nib file (the table), and second how to register a nib for cell use.
Hope this helps!!!
Swift 4
Register Nib
override func viewDidLoad() {
super.viewDidLoad()
tblMissions.register(UINib(nibName: "MissionCell", bundle: nil), forCellReuseIdentifier: "MissionCell")
}
In TableView DataSource
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
guard let cell = tableView.dequeueReusableCell(withIdentifier: "MissionCell", for: indexPath) as? MissionCell else { return UITableViewCell() }
return cell
}
Detailed Solution with Screenshots
Create an empty user interface file and name it MyCustomCell.xib.
Add a UITableViewCell as the root of your xib file and any other visual components you want.
Create a cocoa touch class file with class name MyCustomCell as a subclass of UITableViewCell.
Set the custom class and reuse identifier for your custom table view cell.
Open the assistant editor and ctrl+drag to create outlets for your visual components.
Configure a UIViewController to use your custom cell.
class MyViewController: UIViewController {
#IBOutlet weak var myTable: UITableView!
override func viewDidLoad {
super.viewDidLoad()
let nib = UINib(nibName: "MyCustomCell", bundle: nil)
myTable.register(nib, forCellReuseIdentifier: "MyCustomCell")
myTable.dataSource = self
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if let cell = tableView.dequeueReusableCell(withIdentifier: "MyCustomCell") as? MyCustomCell {
cell.myLabel.text = "Hello world."
return cell
}
...
}
}
swift 4.1.2
xib.
Create ImageCell2.swift
Step 1
import UIKit
class ImageCell2: UITableViewCell {
#IBOutlet weak var imgBookLogo: UIImageView!
#IBOutlet weak var lblTitle: UILabel!
#IBOutlet weak var lblPublisher: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
}
step 2 . According Viewcontroller class
import UIKit
class ImageListVC: UIViewController,UITableViewDataSource,UITableViewDelegate {
#IBOutlet weak var tblMainVC: UITableView!
var arrBook : [BookItem] = [BookItem]()
override func viewDidLoad() {
super.viewDidLoad()
//Regester Cell
self.tblMainVC.register(UINib.init(nibName: "ImageCell2", bundle: nil), forCellReuseIdentifier: "ImageCell2")
// Response Call adn Disply Record
APIManagerData._APIManagerInstance.getAPIBook { (itemInstance) in
self.arrBook = itemInstance.arrItem!
self.tblMainVC.reloadData()
}
}
//MARK: DataSource & delegate
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.arrBook.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
// [enter image description here][2]
let cell = tableView.dequeueReusableCell(withIdentifier: "ImageCell2") as! ImageCell2
cell.lblTitle.text = self.arrBook[indexPath.row].title
cell.lblPublisher.text = self.arrBook[indexPath.row].publisher
if let authors = self.arrBook[indexPath.row].author {
for item in authors{
print(" item \(item)")
}
}
let url = self.arrBook[indexPath.row].imageURL
if url == nil {
cell.imgBookLogo.kf.setImage(with: URL.init(string: ""), placeholder: UIImage.init(named: "download.jpeg"))
}
else{
cell.imgBookLogo.kf.setImage(with: URL(string: url!)!, placeholder: UIImage.init(named: "download.jpeg"))
}
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 90
}
}
You did not register your nib as below:
tableView.registerNib(UINib(nibName: "CustomCell", bundle: nil), forCellReuseIdentifier: "CustomCell")
Another method that may work for you (it's how I do it) is registering a class.
Assume you create a custom tableView like the following:
class UICustomTableViewCell: UITableViewCell {...}
You can then register this cell in whatever UITableViewController you will be displaying it in with "registerClass":
override func viewDidLoad() {
super.viewDidLoad()
tableView.registerClass(UICustomTableViewCell.self, forCellReuseIdentifier: "UICustomTableViewCellIdentifier")
}
And you can call it as you would expect in the cell for row method:
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("UICustomTableViewCellIdentifier", forIndexPath: indexPath) as! UICustomTableViewCell
return cell
}
For fix the "Overriding method... has incompatible type..." error I've changed the function declaration to
override func tableView(tableView: (UITableView!),
cellForRowAtIndexPath indexPath: (NSIndexPath!))
-> UITableViewCell {...}
(was -> UITableViewCell! -- with exclamation mark at the end)
I had to make sure that when creating the outlet to specify that I was hooking to the cell, not the object's owner. When the menu appears to name it you have to select it in the 'object' dropdown menu. Of course you must declare the cell as your class too, not just 'TableViewCellClass'. Otherwise I would keep getting the class not key compliant.
Simple take a xib with class UITableViewCell. Set the UI as per reuirement and assign IBOutlet. Use it in cellForRowAt() of table view like this:
//MARK: - table method
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.arrayFruit.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var cell:simpleTableViewCell? = tableView.dequeueReusableCell(withIdentifier:"simpleTableViewCell") as? simpleTableViewCell
if cell == nil{
tableView.register(UINib.init(nibName: "simpleTableViewCell", bundle: nil), forCellReuseIdentifier: "simpleTableViewCell")
let arrNib:Array = Bundle.main.loadNibNamed("simpleTableViewCell",owner: self, options: nil)!
cell = arrNib.first as? simpleTableViewCell
}
cell?.labelName.text = self.arrayFruit[indexPath.row]
cell?.imageViewFruit.image = UIImage (named: "fruit_img")
return cell!
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
{
return 100.0
}
100% working without any issue (Tested)
This line add in TableView cell:
static var nib : UINib{
return UINib(nibName: identifier, bundle: nil)
}
static var identifier : String{
return String(describing: self)
}
And register in viewcontroller like
This line use in viewDidLoad
tableview.register(TopDealLikedTableViewCell.nib, forCellReuseIdentifier: TopDealLikedTableViewCell.identifier)
cell for row at indexpath
if let cell = tableView.dequeueReusableCell(withIdentifier:
TopDealLikedTableViewCell.identifier) as? TopDealLikedTableViewCell{
return cell
}
return UITableViewCell()
Set on cell
static var identifier : String {
return String(describing: self)
}
static var nib : UINib {
return UINib(nibName: identifier, bundle: nil)
}

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