I have a tableview and stepper.
stepper is touched, random stepper values is changing when tableview is moved.how do i prevent it. Thanks
Code
UIViewController
import UIKit
class ViewController:UIViewController,UITableViewDelegate,UITableViewDataSource{
#IBOutlet weak var tablee: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 10
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "test", for: indexPath) as! TesttViewCell
return cell
}
}
TesttViewCell
import UIKit
class TesttViewCell: UITableViewCell {
#IBOutlet weak var adet: UIStepper!
#IBOutlet weak var lblTest: 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
}
#IBAction func changee(_ sender: UIStepper) {
lblTest.text = String(sender.value)
}
}
Related
In this image I have two section in this table view . In the second section there is a tableview inside the cell. i want to fetch the textfield data of the “inner table view” in the current class. How to do this? followings are the code for my tableview cell .I want to fetch "InerTableViewCell1" data in "outerTableView". How to do this?
//MARK- UITableViewDataSource
extension outerTableView: UITableViewDataSource{
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0{
let cell1 = tableView.dequeueReusableCell(withIdentifier: "TableViewCell1", for: indexPath) as? TableViewCell1
return cell1!
}
else{
let cell2 = tableView.dequeueReusableCell(withIdentifier: "TableViewCell2", for: indexPath) as? TableViewCell2
cell2!.innerTableView.reloadData()
return cell2!
}
}
class TableViewCell2: UITableViewCell {
//MARK- IBOutlet
#IBOutlet weak var innerTableView: UITableView!
//MARK- Properties
var rowNumber = 1
//MARK- Lifecycle
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
innerTableView.dataSource = self
innerTableView.delegate = self
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
//MARK- UITableViewDataSource
extension TableViewCell2: UITableViewDataSource{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print("row number is \(rowNumber)")
return rowNumber
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "InerTableViewCell1", for: indexPath) as? InerTableViewCell1
return cell!
}
}
}
class InerTableViewCell1: UITableViewCell {
//MARK- IBOutlet
#IBOutlet weak var firstUserNameTextField: UITextField!
#IBOutlet weak var firstAdressTextField: UITextField!
#IBOutlet weak var secondUserNameTextField: UITextField!
#IBOutlet weak var secondAdressTextField: UITextField!
//MARK- Lifecycle
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
}
}
I already make an array to access the picture.. Can someone help? thanks
Here is my code:
import UIKit
class MainMenuViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
let labeltitle = ["Acme De la Vie Tee", "Anti Social Social Club Black Hoodie", "CDG Play Gold Black Tee"]
let labelprice = [("RM 240"), ("RM 305"), ("RM 418")]
let myImage = [UIImage(named: "adlv1"), UIImage(named: "assc"), UIImage(named: "cdg1")]
#IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return labeltitle.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! MainMenuTableViewCell
cell.label11?.text = labeltitle[indexPath.row]
cell.label2?.text = labelprice[indexPath.row]
cell.myImage.image = self.myImage[indexPath.row]
return cell
}
}
Here is my code for MainMenuTableViewCell
import UIKit
class MainMenuTableViewCell: UITableViewCell {
#IBOutlet weak var label11: UILabel!
#IBOutlet weak var label3: UILabel!
#IBOutlet weak var label2: UILabel!
#IBOutlet weak var myImage: UIImageView!
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
}
}
you need to register your tableviewcell in viewDidLoad
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
tableView.register(MainMenuTableViewCell.self, forCellReuseIdentifier: "cell")
}
Apple Documentation
More Info
Did u add constraint ?
Select to viewController and do reset the suggested constraint and im sure it will be solved
cell.myImage.image = self.myImage[indexPath.row]
try to change your image Array name
How can I use the text in a textField from a custom Cell?
This is the Receiving Controller:
class ShowName: UIViewController {
#IBOutlet weak var showName: UILabel!
#IBAction func unwindToShowNameData(_ unwindSegue: UIStoryboardSegue) {
let sourceViewController = unwindSegue.source as! enterName
showName.text = sourceViewController.name
}
#IBAction func unwindToShowName(_ unwindSegue: UIStoryboardSegue) {
}
}
This is the Sending Controller:
class enterName: UIViewController, UITableViewDataSource, UITableViewDelegate {
var name: String?
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "nameCell", for: indexPath) as! nameCell
return cell
}
#IBAction func clickSave(_ sender: UIBarButtonItem) {
let cell = nameCell()
name = cell.nameText.text
performSegue(withIdentifier: "passData", sender: self)
}
}
This is the class Cell with TextField:
class NameCell: UITableViewCell {
#IBOutlet weak var nameText: UITextField!
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
}
}
Any ideas?
Actually that's the same solution as my suggestion in your previous question.
Add a callback in the cell and call it when the text field delegate method is called. Don't forget to connect the text field delegate in Interface Builder.
And please name classes and structs always with starting uppercase letter
class NameCell: UITableViewCell, UITextFieldDelegate {
#IBOutlet weak var nameText: UITextField!
var callback : ((UITableViewCell, String) -> Void)?
func textFieldDidEndEditing(_ textField: UITextField) {
callback?(self, nameText.text)
}
}
If you have more than one row you need to declare a data source array to maintain the values of the text fields. This is an example for 4 rows
var values = ["", "", "", ""]
These are the data source methods, in cellForRow the callback updates the model
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return values.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "nameCell", for: indexPath) as! NameCell
cell.nameText.text = values[indexPath.row]
cell.callback = { [unowned self] cCell, cName in
let currentIndexPath = tableView.indexPath(for: cCell)!
self.values[currentIndexPath.row] = cName
}
return cell
}
The benefit is you are independent of the cells in the clickSave method. Get the values from the data source array. And you can pass the name as sender parameter and hand it over in prepare(for segue
#IBAction func clickSave(_ sender: UIBarButtonItem) {
let name = values[0]
performSegue(withIdentifier: "passData", sender: name)
}
1.I have one more section1
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if section == 0 {
return 1
}else{
return 3 //imageName.count
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var thirdCell = ThirdTableViewCell()
var cell = UITableViewCell()
var row2Cell = Row2TableViewCell()
if indexPath.row == 0 {
cell = tableView.dequeueReusableCell(withIdentifier: "Cell1", for: indexPath)
return cell
}else if indexPath.row == 1{
thirdCell = tableView.dequeueReusableCell(withIdentifier: "thirdCell", for: indexPath) as! ThirdTableViewCell
thirdCell.image1.image = #imageLiteral(resourceName: "plus")//imageArray[indexPath.row]
return thirdCell
}else{
row2Cell = tableView.dequeueReusableCell(withIdentifier: "Row2Cell", for: indexPath) as! Row2TableViewCell
return row2Cell
}
}
2.How did I get ThirdViewController.image
As I see you want to access ThirdViewController.image in your ThirdTableViewCell Class
this is how you can access instance of viewController (e.g Labels, Images and TextFeilds etc) in other View Controller or in custom class.
import UIKit
internal weak var AccessThirdViewController: ThirdViewController?
class ThirdViewController: UIViewController, UITableViewDelegate, UITableViewDataSource{
#IBOutlet weak var imageViewToChange: UIImageView!
override func viewDidLoad() {
AccessThirdViewController = self
}
it will make it accessible in all other viewControllers or classes
import UIKit
class ThirdTableViewCell: UITableViewCell {
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
}
#IBAction func onButtonClick(_ sender: Any) {
AccessThirdViewController?.imageViewToChange.image = UIImage(named: "rocket")!
}
}
Now you can simply access ThirdViewController directly using AccessThirdViewContoller
Or you can achieve this by using NotificationCenter as creating
NotificationCenter addObserver
Receive(Get) Notification and Function-Method handler for received Notification:
import UIKit
class ThirdViewController: UIViewController, UITableViewDelegate, UITableViewDataSource{
#IBOutlet weak var imageViewToChange: UIImageView!
override func viewDidLoad() {
NotificationCenter.default.addObserver(self, selector: #selector(setImage), name: Notification.Name("UpdateImage"), object: nil)
}
#objc func setImage(){
self.imageViewToChange.image = UIImage(named: "rocket")
}
Then Send(Post) Notification from ThirdTableViewCell Class on #IBAction of UIButton
import UIKit
class ThirdTableViewCell: UITableViewCell {
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
}
#IBAction func onButtonClick(_ sender: Any) {
NotificationCenter.default.post(name: Notification.Name("UpdateImage"), object: nil)
}
}
I have an App that i'm trying to adapt exactly how i want
I have been following a Youtube tutorial of Seemu Apps to make it but I need to finish it adding an optional ViewController
This app has 2 tableViews showing vehicles and if we click in one row of the first tableView then second tableView will show us a list of selected vehicles.
Here is what we have until now: (image link , because i haven't got ten points reputation on stackOverFlow)
http://subefotos.com/ver/?65ba467040cb9280e8ec49644fd156afo.jpg
All is running perfect, but i want to be able to display information in an optional detailViewController (label with a detailed description of each vehicle and a bigger image of this ) depending of which vehicle we click in the secondTableViewControlle (or modelViewController in the App) exactly how i was following in the tutorial between tableViews
i know that we need to passing data through prepareForSegue method , i have understood this making the steps in the tutorial but when we have 2 tableviewControllers
For example : if we want to display a last viewController with information of Ferrari 458 and a great picture of this car
What do we need to do exactly to show information of each vehicle?
PD : I'm beginner in the programming world, maybe i would need to see it in a very simple way
The whole code:
ViewController.swift
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var selMake = String()
#IBOutlet var tableView : UITableView!
var transportData : [String] = ["Car", "Plane", "Motorcycle", "Truck" , "Train", "Bicycle" , "Helicopter"]
//////////////////////////////////////////
//viewDidLoad
override func viewDidLoad() {
super.viewDidLoad()
//Register custom cell
var nib = UINib(nibName: "customCell", bundle: nil)
tableView.registerNib(nib, forCellReuseIdentifier: "cell")
}
//Numbers of rows in Section
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.transportData.count
}
//cellForRowAtIndexPath
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
///// Static Cell (no valid for custom cells)
/*
var cell : UITableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as UITableViewCell
cell.textLabel?.text = self.transportData[indexPath.row]
return cell
*/
var cell:customCellTableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as customCellTableViewCell
cell.lblTrans.text = transportData[indexPath.row]
cell.imgTrans.image = UIImage (named: transportData[indexPath.row])
return cell
}
//height
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 90
}
//didSelectRowAtIndexPath
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("Fila \(transportData[indexPath.row]) seleccionada")
selMake = transportData[indexPath.row]
performSegueWithIdentifier("modelView", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "modelView") {
var vc = segue.destinationViewController as modelViewViewController
vc.selMake = selMake
}
}
import UIKit
class customCellTableViewCell: UITableViewCell {
#IBOutlet weak var imgTrans: UIImageView!
#IBOutlet weak var lblTrans: 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
}
}
import UIKit
class modelViewViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
//////////////////////////////////
var selMake = String()
var tableData : [String] = []
#IBOutlet var tableView: UITableView!
//////////////////////////////////
override func viewDidLoad() {
super.viewDidLoad()
//Register custom cell
var nib = UINib(nibName: "customCell2", bundle: nil)
tableView.registerNib(nib, forCellReuseIdentifier: "cell")
switch selMake {
case "Car" :
tableData = ["Ferrari 458", "La Ferrari"]
case "Plane" :
tableData = ["Iberia"]
case "Motorcycle" :
tableData = ["Kawasaki Ninja", "Yamaha Aerox"]
case "Truck" :
tableData = [ "Camion transporte"]
case "Train" :
tableData = [ "Ave" ]
case "Bicycle" :
tableData = ["BMX"]
case "Helicopter" :
tableData = ["HelicopteroCombate"]
default:
println("Sel Make \(selMake)")
}
self.tableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.tableData.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
/* var cell : UITableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as UITableViewCell
cell.textLabel?.text = self.tableData[indexPath.row]
return cell*/
var cell:customCell2TableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as customCell2TableViewCell
cell.lbl2text.text = self.tableData[indexPath.row]
cell.img2image.image = UIImage (named: tableData[indexPath.row])
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("Row \(indexPath.row)selected")
performSegueWithIdentifier("detailView", sender: self)
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 90
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "detailView") {
var vc = segue.destinationViewController as DetailViewController
}
}
import UIKit
class customCell2TableViewCell: UITableViewCell {
#IBOutlet var lbl2text: UILabel!
#IBOutlet var img2image: UIImageView!
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
}
}
import UIKit
class DetailViewController: UIViewController {
#IBOutlet var imgDetail: UIImageView!
#IBOutlet var lblDetail: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
Try this.
ModelViewViewController
var selectedImage:String?
var selectedLabel:String?
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("Row \(indexPath.row)selected")
selectedImage = self.tableData[indexPath.row]
selectedLabel = self.tableData[indexPath.row]
performSegueWithIdentifier("detailView", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "detailView") {
var vc = segue.destinationViewController as DetailViewController
vc.img = selectedImage
vc.lblDetail = selectedLabel
}
}
class DetailViewController: UIViewController {
#IBOutlet var imgDetail: UIImage!
#IBOutlet var lblDetail: UILabel!
var img:String?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
imgDetail = UIImage(named: img)
}
This should work.