I have created a new Datasource for my dynamic UITable "NewUser List" Embed nn static view cell. my problem with var dataSource = NewUserDataSource(newStakeholders: self.newStakeholders)
give me this error
Value of type '(CreateCompanyTableViewController) -> () ->
CreateCompanyTableViewController' has no member 'newStakeholders'
class CreateCompanyTableViewController: UITableViewController {
#IBOutlet weak var lblNumberOfUser: UILabel!
var newStakeholders: [ReadOrganizationStakeholder] = []
#IBOutlet weak var companyUsersTableView: UITableView!
var dataSource = NewUserDataSource(newStakeholders: self.newStakeholders)
override func viewDidLoad() {
super.viewDidLoad()
lblNumberOfUser.text = "\(newStakeholders.count) Users"
companyUsersTableView.dataSource = dataSource
companyUsersTableView.delegate = dataSource as! UITableViewDelegate
}
}
class NewUserDataSource: NSObject, UITableViewDataSource {
// We keep this public and mutable, to enable our data
// source to be updated as new data comes in.
var newStakeholders: [ReadOrganizationStakeholder]
init(newStakeholders: [ReadOrganizationStakeholder]) {
self.newStakeholders = newStakeholders
}
func tableView(_ tableView: UITableView,
numberOfRowsInSection section: Int) -> Int {
return newStakeholders.count
}
func tableView(_ tableView: UITableView,
cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let stakeholders = newStakeholders[indexPath.row]
let cell = tableView.dequeueReusableCell(
withIdentifier: "newUserTableViewCell",
for: indexPath
) as! NewUserTableViewCell
cell.lblUsername.text = stakeholders.fullName
cell.lblEmail.text = stakeholders.emailAddress
return cell
}
}
In that line you are using self outside of a method.
Move that line to viewDidLoad() or to a new init method.
Related
I am trying to create a table view with custom cells from Storyboard layout in an iOS app.
But for some reason the table cells are not being shown. When I tried to set debug breakpoints I found that the debugger is reaching this function
public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
but it never reaches this function -
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
Here is my viewcontroller code -
extension NavigationViewController: UITableViewDataSource, UITableViewDelegate, SideMenuControllerDelegate {
public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items.count
}
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "SideMenuTableItem", for: indexPath as IndexPath) as! SideMenuTableItem
cell.setItemData(items[indexPath.row])
return cell
}
public func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func setupTableViews() {
menuTable.register(SideMenuTableItem.self, forCellReuseIdentifier: "SideMenuTableItem")
}
}
class SideMenuTableItem: UITableViewCell {
#IBOutlet weak var menuImage: UIImageView!
#IBOutlet weak var menuLabel: UILabel!
var data: MenuItem?
override func awakeFromNib() {
super.awakeFromNib()
}
func setItemData(_ item: MenuItem) {
data = item
menuLabel.text = data?.title
if data?.icon_res != nil {
menuImage.image = UIImage(named: (data?.icon_res)!)
}
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
}
I have checked in the storyboard that I have set the reusable identifier to the table prototype cell and also connected the datasource and the delegate properties to the tableview
and I am calling the setupTableViews() method inside my viewDidLoad() function after creating the items array
But still I am not able to get the cells to appear in my view at all.
Can anyone suggest what am I missing here or what's wrong with my code, or how can I further debug this issue
import UIKit
import SideMenuSwift
class NavigationViewController: UIViewController {
#IBOutlet weak var navigationContainer: UIView!
#IBOutlet weak var emailButton: UIButton!
#IBOutlet weak var phoneButton: UIButton!
#IBOutlet weak var userAvatar: UIImageView!
#IBOutlet weak var userProfile: UIButton!
#IBOutlet weak var userName: UILabel!
#IBOutlet weak var menuTable: UITableView!
var service: AuthenticationService!
var cdc: CoreDataController!
var items: [MenuItem] = []
var currentUser: User?
override func viewDidLoad() {
super.viewDidLoad()
setupSidebar()
initSidebarData()
setupUserHeader()
setupTableViews()
}
func setupUserHeader() {
if currentUser != nil {
if currentUser?.name != nil {
userName.text = currentUser?.name
} else if currentUser?.role != nil {
userName.text = "urTutors " + (currentUser?.role ?? "")
}
if currentUser?.avatarUrl != nil {
userAvatar.downloaded(from: (currentUser?.avatarUrl)!)
}
}
}
func initSidebarData() {
service = AuthenticationServiceProvider()
cdc = CoreDataController()
items = cdc.getNavigationData()
currentUser = cdc.getUserData()
}
func setupSidebar() {
self.view.backgroundColor = UIColor.hexColor("#fff")
navigationContainer.backgroundColor = UIColor.hexColor("#2a2a2a")
SideMenuController.preferences.basic.statusBarBehavior = .hideOnMenu
SideMenuController.preferences.basic.position = .above
SideMenuController.preferences.basic.direction = .left
SideMenuController.preferences.basic.enablePanGesture = true
SideMenuController.preferences.basic.menuWidth = 275
sideMenuController?.delegate = self
}
static func createViewController() -> NavigationViewController {
let sb = UIStoryboard(name: "StudentHomeModuleStoryboard", bundle: nil)
let vc = sb.instantiateViewController(withIdentifier: "NavigationViewController")
return vc as! NavigationViewController
}
}
--UPDATE--
updated setupTableLayout function -
func setupTableViews() {
let bundle = Bundle(for: type(of: self))
let cellNib = UINib(nibName: "SideMenuTableItem", bundle: bundle)
menuTable.register(cellNib, forCellReuseIdentifier: "SideMenuTableItem")
menuTable.register(SideMenuTableItem.self, forCellReuseIdentifier: "SideMenuTableItem")
menuTable.reloadData()
}
After breaking into chat on this, we found that there were two issues.
The first issue was the missing reloadData call mentioned above. That was causing cellForRow to not be called. Adding reloadData corrected that issue, but then the custom cell class's outlets were nil, causing a crash in setItemData.
The second issue was that register(_:forCellReuseIdentifier:) was being called in code, but the custom cell was already setup as part of the Interface Builder UITableView declaration. Calling register again on the custom class re-registered the reuseIdentifier, disconnecting the outlets set up in the storyboard.
Removing the register call and adding reloadData solved all issues.
You are never calling setupTableViews(). You'r code should look like this:
class NavigationViewController: UIViewController, SideMenuControllerDelegate {
override func viewDidLoad() {
super.viewDidLoad()
setupTableViews()
}
func setupTableViews() {
menuTable.reloadData()
}
}
extension NavigationViewController: UITableViewDataSource, UITableViewDelegate {
public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items.count
}
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "SideMenuTableItem", for: indexPath as IndexPath) as! SideMenuTableItem
cell.setItemData(items[indexPath.row])
return cell
}
public func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
}
You are never calling the function, nor calling viewDidLoad. This should help. Also, where is the rest of your view controller code (is this all of it? It should not be!).
You don't need to register your cell because you requested it and make sure you reloadData().
Hope this helps!
Edited:
I'm trying to insert two arrays into one tableview with two cell labels. But not really sure how I can convert it all and make it work. Here is my code so far.
In the top of the main ViewController (Where the tableView is)
class ScoreBoardViewController: UIViewController, UITableViewDelegate, UITableViewDataSource
var countedArray: [String] = []
var nameArray: [String] = []
#IBOutlet weak var tableView: UITableView!
var list: [pointsTxt] = []
Additional info: I've added the self.tableView.delegate = self
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return list.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let listPath = list[indexPath.row]
let cell = tableView.dequeueReusableCell(withIdentifier: "pointsCell") as! ScoreCell
cell.setCell(list: listPath)
return cell
}
func createArray() -> [pointsTxt]
{
var tempTxt: [pointsTxt] = []
let txt = pointsTxt(person: nameArray, points: countedArray)
tempTxt.append(txt)
self.list = tempTxt
self.tableView.reloadData()
return list
}
Class for the cell
class ScoreCell: UITableViewCell
{
#IBOutlet weak var person: UILabel!
#IBOutlet weak var points: UILabel!
func setCell(list: pointsTxt)
{
person.text = list.person
points.text = list.points
}
}
ERROR: Cannot assign value of type '[String]' to type 'String?'
Class for the array
class pointsTxt
{
var person: [String] = []
var points: [String] = []
init(person: [String] = [], points: [String] = [])
{
self.person = person
self.points = points
}
}
I hope you understand what I need. Thanks in advance!
You have to follow the following steps when creating a custom tableViewCell:
Subclass UITableViewCell
Add your Outlets to that subclass
register your subclass to the TableView
code Example for your rowAtIndexPath function:
.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.row < nameArray.count {
// load from customerDetails array
let names = nameArray[indexPath.row]
let cell = tableView.dequeueReusableCell(withIdentifier: "listCell", for: indexPath) as! UITableViewSubclassCell
cell.person.text = names
return cell
} else {
// load from customerDetails2 array
let points = countedArray[indexPath.row - nameArray.count]
let cell = tableView.dequeueReusableCell(withIdentifier: "listCell", for: indexPath) as! UITableViewSubclassCell
cell.person.text = points
return cell
}
}
There is a task. Each cell contains a button by clicking which you want to delete this cell. The problem is that sections are used to delineate the entire list by category. The data I take from Realm DB. removal must occur under two conditions because the name is repeated, so you need to consider the name from the label and the name of the section. I will be very grateful for the sample code with comments.
import UIKit
import RealmSwift
class PurchesViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var purchesTableView: UITableView!
let manage = ManagerData()
override func viewDidLoad() {
super.viewDidLoad()
purchesTableView.delegate = self
purchesTableView.dataSource = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
purchesTableView.reloadData()
}
func numberOfSections(in tableView: UITableView) -> Int {
return manage.loadPurchases().0.count
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return manage.loadPurchases().0[section]
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return manage.loadPurchases().1[section].count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "purchesCell", for: indexPath) as! CustomPurchesTableViewCell
cell.productLabel.text = manage.loadPurchases().1[indexPath.section][indexPath.row]
cell.weightProductLabel.text = manage.loadPurchases().2[indexPath.section][indexPath.row]
cell.weightNameLabel.text = manage.loadPurchases().3[indexPath.section][indexPath.row]
// cell.boughtButton.addTarget(self, action: #selector(removeProduct), for: .touchUpInside)
return cell
}
}
class CustomPurchesTableViewCell: UITableViewCell {
#IBOutlet weak var boughtButton: UIButton!
#IBOutlet weak var productLabel: UILabel!
#IBOutlet weak var weightProductLabel: UILabel!
#IBOutlet weak var weightNameLabel: UILabel!
#IBAction func removePurches(_ sender: Any) {
print("remove")
}
}
method for get data
func loadPurchases() -> ([String], Array<Array<String>>, Array<Array<String>>, Array<Array<String>>) {
var sections: [String] = []
var product = Array<Array<String>>()
var weight = Array<Array<String>>()
var nameWeight = Array<Array<String>>()
let realm = try! Realm()
let data = realm.objects(Purches.self)
for item in data {
if sections.contains(item.nameDish) == false {
sections.append(item.nameDish)
}
}
for a in sections {
var productArr = Array<String>()
var weightArr = Array<String>()
var nameWeightArr = Array<String>()
for prod in data {
if a == prod.nameDish {
productArr.append(prod.product)
weightArr.append(prod.weight)
nameWeightArr.append(prod.nameWeigh)
}
}
product.append(productArr)
weight.append(weightArr)
nameWeight.append(nameWeightArr)
}
return (sections, product, weight, nameWeight)
}
Index path you will get in cell class
Index path have two property section and row for table view
Now you can create on more method in Controller class and assign to a variable to every cell or you can use editAction provided by table view for delete
in order to get number section and row you need create IBOutlet in custom cell and on ViewController class is created addTarget for your button.
Example code at the bottom.
import UIKit
import RealmSwift
class PurchesViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var purchesTableView: UITableView!
let manage = ManagerData()
//... more code ...
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "purchesCell", for: indexPath) as! CustomPurchesTableViewCell
cell.productLabel.text = manage.loadPurchases().1[indexPath.section][indexPath.row]
cell.weightProductLabel.text = manage.loadPurchases().2[indexPath.section][indexPath.row]
cell.weightNameLabel.text = manage.loadPurchases().3[indexPath.section][indexPath.row]
cell.boughtButton.addTarget(self, action: #selector(removePurches(_:)), for: .touchUpInside)
return cell
}
#objc func removePurches(_ sender: UIButton) {
let position: CGPoint = sender.convert(CGPoint.zero, to: purchesTableView)
let indexPath: IndexPath! = self.purchesTableView.indexPathForRow(at: position)
print("indexPath.row is = \(indexPath.row) && indexPath.section is = \(indexPath.section)")
purchesTableView.deleteRows(at: [indexPath], with: .fade)
}
}
and custom class CustomPurchesTableViewCell for cell
class CustomPurchesTableViewCell: UITableViewCell {
#IBOutlet weak var boughtButton: UIButton! // you button for press
#IBOutlet weak var productLabel: UILabel!
#IBOutlet weak var weightProductLabel: UILabel!
#IBOutlet weak var weightNameLabel: UILabel!
}
I am trying to have each choice in my UITableView to have its own unique set of data. For example, in my table view I have a list of states, then when I click on a state, I want each state to have a list of cities that correspond specifically to it. I have attached my code below, the code is strictly for the UITableView only.
I'm new to Xcode/Swift.
import UIKit
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var tableView: UITableView!
let textCellIdentifier = "TextCell"
var states = ["Illinois", "Indiana", "Kentucky", "Michigan", "Ohio", "Pennsylvania", "Wisconsin"]
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 states.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: textCellIdentifier, for: indexPath)
let row = indexPath.row
cell.textLabel?.text = states[row]
return cell
}
private func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: IndexPath) {
tableView.deselectRow(at: indexPath as IndexPath, animated: true)
let row = indexPath.row
print(states[row])
}
You can construct array model like this
struct MainItem {
var name:String
var cities:[String]
init(name:String,cities:[String]) {
self.name = name
self.cities = cities
}
}
//
let item1 = MainItem(name:"Illinois",cities:["city1","city2"])
let item2 = MainItem(name:"Indiana",cities:["city3","city4"])
var states = [item1,item2]
//
in cellForRowAt
cell.textLabel?.text = states[row].name
//
in didSelectRowAtIndexPath
let cities = states[row].cities
I recently did this by creating separate classes for each of the delegates I wanted to have. Move all of the table functions into a new class and create an instance of the class in your new controller. In the view did load function set the delegate for the first table. Whenever you switch tables with a button or whatever, do nextTable.delegate = xxxx.
View controller code:
let eventLogTableController = EventLogTableController()
let missedEventLogController = MissedEventTableController()
#IBOutlet weak var emptyTableLabel: UILabel!
#IBOutlet weak var missedEventLog: UITableView!
override func viewDidLoad() {
self.eventLog.delegate = eventLogTableController
I am trying to add a cell to my table view with a button. Everything I have read and watched suggests that what I have written should work, but it doesn't. Any suggestions?
import UIKit
class RootViewController: UITableViewController, UITableViewDataSource, UITableViewDelegate {
private var cellPointSize: CGFloat!
private var albumsList: AlbumList!
private var albums:[Album]!
private let albumCell = "Album"
#IBOutlet var myTableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
let preferredTableViewFont = UIFont.preferredFontForTextStyle(UIFontTextStyleHeadline)
cellPointSize = preferredTableViewFont.pointSize
albumsList = AlbumList.sharedAlbumList
albums = albumsList.albums
self.myTableView.dataSource = self
self.myTableView.delegate = self
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
tableView.reloadData()
}
// MARK: - Table view data source
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// Return the number of rows in the section.
return albums.count
}
override func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return "Albums"
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = myTableView.dequeueReusableCellWithIdentifier(albumCell, forIndexPath: indexPath) as! UITableViewCell
//cell.textLabel?.font = fontForDisplay(atIndexPath: indexPath)
cell.textLabel?.text = albums[indexPath.row].name
cell.detailTextLabel?.text = albums[indexPath.row].artist
return cell
}
#IBAction func addNewAlbumAction(sender: UIBarButtonItem) {
var newAlbum = Album(nameIn: "New Title", yearIn: "New Year", artistIn: "New Artist", labelIn: "New Label")
albumsList.addAlbum(newAlbum)
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.myTableView.reloadData()
})
}
func saveData(albumObject: Album) {
var archiveArray = NSMutableArray(capacity: albums.count)
for a in albums {
var albumEncodedObject = NSKeyedArchiver.archivedDataWithRootObject(a)
archiveArray.addObject(albumEncodedObject)
}
var userData = NSUserDefaults()
userData.setObject(archiveArray, forKey: "albums")
userData.synchronize()
}
My albums array is adding the data correctly. I can see the albums in the debugger. The delegate methods are never being called after the first time when the app loads. Any ideas?
in tableView:numberOfRowsInSection:, it returns albums.count
but when the button is pressed, you add the new album to albumsList
The problem is, albums will not get update.
So I think you should return albumsList.albums.count instead.
and in tableView:cellForRowAtIndexPath:, you modify the cell correspond to albumsList.albums[indexPath.row]