I am trying to create a ToDo list application. For this application, I require a custom UITableViewCell. I am trying to use my custom cell, however, when I run the app and try to scroll through the table view all the cells get deleted.
This is my code:
class ToDoListVC: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
let nib = UINib(nibName: "TodoCell", bundle: nil)
tableView.register(nib, forCellReuseIdentifier: "customCell")
tableView.delegate = self
tableView.dataSource = self
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return HomeVC.ToDoEvents.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell{
let cell = tableView.dequeueReusableCell(withIdentifier: "customCell") as! TodoCell
let eventName = HomeVC.ToDoEvents[indexPath.row].name
let eventTime = HomeVC.ToDoEvents[indexPath.row].time
let completion = HomeVC.ToDoEvents[indexPath.row].isComplete
cell.initialize(task: eventName!, length: eventTime!, completion: completion!)
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 70
}
}
I am not sure what I am doing wrong. I went through some of the other threads, however, none of them solved my problem.
Related
import UIKit
class anasayfaVC: UIViewController, UITableViewDataSource , UITableViewDelegate {
#IBOutlet weak var tableView1: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
tableView1.delegate = self
tableView1.dataSource = self
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 5
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! FeedCell
cell.deneme.image = UIImage(named: "naruto")
return cell
}
}
did you register your tableview as
tableView.register(UINib(nibName: "FeedCell", bundle: nil), forCellReuseIdentifier: "Cell") ?
i have create expandable table view in that tableview cell i have build xib file but i want to know that how i can twiddle for in loop of that xib file?
Custom Cell1
#IBOutlet weak var middleLabel: UILabel!
#IBOutlet weak var leftLabel: UILabel!
#IBOutlet weak var rightLabel: UILabel!
ViewController
let items = ["Item 1", "Item2", "Item3", "Item4"]
override func viewDidLoad() {
super.viewDidLoad()
tableView.registerNib(UINib(nibName: "CustomOneCell", bundle: nil), forCellReuseIdentifier: "CustomCellOne")
}
// MARK: - UITableViewDataSource
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("CustomCellOne", forIndexPath: indexPath) as! CustomOneCell
cell.middleLabel.text = items[indexPath.row]
cell.leftLabel.text = items[indexPath.row]
cell.rightLabel.text = items[indexPath.row]
return cell
}
}
Please try below code
class ViewController: UIViewController {
#IBOutlet weak var tableView: UITableView!
let items = ["Item 1", "Item2", "Item3", "Item4"]
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.register(UINib(nibName: "CustomOneCell", bundle: nil), forCellReuseIdentifier: "CustomOneCell")
self.tableView.dataSource = self
self.tableView.delegate = self
}
//MARK:- UITableView DataSource & Delegate
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.items.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CustomOneCell") as! CustomOneCell
cell.middleLabel.text = items[indexPath.row]
cell.leftLabel.text = items[indexPath.row]
cell.rightLabel.text = items[indexPath.row]
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 44.0 //give height you want
}
}
I guess you have xib and custom UITableViewCell class, according to the information provided.
This is what you need.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("CellXib", owner: self, options: nil)?.first as! XibCustomCell
return cell
}
You can follow the following tut. easy and understandable
https://medium.com/#musawiralishah/creating-custom-uitableviewcell-using-nib-xib-files-in-xcode-9bee5824e722
I have a table view controller in my view controller. When I give it static number of rows and cell for row index method name it shows nothing to me in the table view. I have also reload the table view but it isn't showing I don't know why is it so,
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return messages.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell (style: .subtitle, reuseIdentifier: "cellID")
let message = messages[indexPath.row]
cell.textLabel?.text = message.text
return cell
}
Recheck if u have set
tableView.delegate = self
tableView.datasource = self
Also put a breakpoint on cellForRowAtIndexpath to check if code runs through the block.
Also Recheck the cellIdentifier (cellID) is correct or not.
class ViewController:UIViewController,UITableViewDataSource,UITableViewDelegate {
//Getting the reference variables of storyboard
#IBOutlet weak var tableView:UITableView!
var messages = [String]()
override func viewDidLoad() {
super.viewDidLoad()
//Add some packages
messages.append("Super")
messages.append("Free ")
messages.append("Miscellaneous")
messages.append("All ")
tableView.datasource = self
tableView.delegate = self
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return messages.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell (style: .subtitle, reuseIdentifier: "cellID")
let message = messages[indexPath.row]
cell.textLabel?.text = message.text
return cell
}
}
Use this . This one works for me
class yourViewController: UIViewController,UITableViewDataSource,UITableViewDelegate {
#IBOutlet weak var tableView:UITableView!
override func viewDidLoad() {
super.viewDidLoad()
tableView.datasource = self
tableView.delegate = self
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return messages.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell=tableView.dequeueReusableCell(withIdentifier: "cellID",for : indexPath)
let message = messages[indexPath.row]
cell.textLabel?.text = message.text
return (cell)
}
}
I am trying to display a textfield on a tableview using a custom cell. I think I have set up the delegation protocol properly, but when loaded, the tableview doesn't show the textfield. I have added a textfield into the customcell, set the class to CustomCell, and changed the identifier to "Cell", but I am not sure what else I am missing.
view controller with tableview:
#IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("Hello")
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return data.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! CustomCell
cell.cellDelegate = self
cell.contentView.bringSubview(toFront: cell.textField)
cell.textField.delegate = self as? UITextFieldDelegate
cell.textField.text = "Test"
return cell
}
func didPressTextField(indexPath: IndexPath) {
print("textfield was tapped")
}
custom cell VC:
protocol CustomCellDelegate : class {
func didPressTextField(indexPath: IndexPath)
}
class CustomCell: UITableViewCell {
weak var cellDelegate: CustomCellDelegate?
var indexPath: IndexPath!
override func awakeFromNib() {
super.awakeFromNib()
self.cellDelegate = nil
// Initialization code
}
#IBOutlet weak var textField: UITextField!
#IBAction func textFieldWasTapped(_ sender: UITextField) {
self.cellDelegate?.didPressTextField(indexPath: indexPath)
}
Your data source is empty.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// data is not containing any value
return data.count
}
Check data.count it should have some data and also if that is custom cell with XIB then you need to register cell in view didload
self.tableView.register(UINib(nibName: "Your Cell XIB name", bundle: nil),
forCellWithReuseIdentifier: "Cell")
Check your data.count. it must return value greater than 0 otherwise your tableView is showing with 0 rows and nothing is display in tableView.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// debug at this point check what is value of data.count its must be greater than 0
return data.count
}
Everything works fine except the last line where I try to show the tableView in live view does not work: PlaygroundPage.current.liveView = controller
I can't figure out what I'm getting wrong?
import UIKit
import PlaygroundSupport
import Foundation
class TableViewController: UITableViewController {
let tableData = ["Matthew", "Mark", "Luke", "John"]
override func viewDidLoad() {
super.viewDidLoad()
print("Hello Matt")
}
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return tableData.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as UITableViewCell
cell.textLabel?.text = tableData[indexPath.row]
return cell
}
}
let controller = TableViewController()
PlaygroundPage.current.liveView = controller
I think you forgot to register the table view cell class in viewDidLoad()
override func viewDidLoad() {
super.viewDidLoad()
tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
}
In func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath), add one line to the top of the function:
tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
Like this:
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
var cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as UITableViewCell
cell.textLabel?.text = tableData[indexPath.row]
return cell
}