Cells on UITableView disappearing after scrolling or touching the table - ios

Question

I am implementing a SwipeMenuViewController and when the user starts scrolling or tapping the cell disappears. I am not sure if it is due to the tableView being implemented not properly or the SwipeMenuViewController not being implemented properly.
Before swiping/touching the table, as you can see the table was loaded with the data
However. Once we start swiping or even touching the table, the previous cell disappears:
I have implemented the table view into a ViewController as follows
var currentUser: User!
var requests = [User]()
var myTableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
myTableView = UITableView(frame: CGRect(x: 0, y: 0, width: tableSize.width, height: tableSize.height))
myTableView.register(UINib(nibName: "FriendRequestTableViewCell", bundle: nil), forCellReuseIdentifier: "friendRequest")
myTableView.dataSource = self
myTableView.delegate = self
//myTableView.separatorStyle = .none
myTableView.rowHeight = 103
myTableView.backgroundColor = Colours.flatColour.main.offWhite
self.view.addSubview(myTableView)
}
The protocol methods:
// MARK: - Table view data source
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if (self.requests.count == 0) {
self.myTableView.setEmptyMessage("You are up to date!\nYou dont have any notifications 😄")
} else {
self.myTableView.restore()
}
return requests.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("FriendRequestTableViewCell", owner: self, options: nil)?.first as! FriendRequestTableViewCell
cell.currentUser = currentUser
cell.requestFriendDelegate = self
cell.user = requests[indexPath.row]
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 103
}
Does anyone have an idea as to where I have gone wrong, I am not sure if I am missing any code. The example of SwipeMenuViewController does not show this way of implementation. I have followed the Read me on implementing SwipeMenuView. I have two ViewControllers, one which holds the SwipeMenuView and one which holds the table for each tab which is the controller I think the issue is coming from. Thank you for any help
The notificationsViewController class:
class NotificationsViewController: UIViewController, SwipeMenuViewDelegate {
#IBOutlet weak var swipeMenuView: SwipeMenuView! {
didSet {
swipeMenuView.delegate = self
swipeMenuView.dataSource = self
var options: SwipeMenuViewOptions = .init()
options.tabView.style = .flexible
options.tabView.margin = 20.0
options.tabView.additionView.backgroundColor = Colours.flatColour.yellow.lighter //UIColor.black//UIColor.customUnderlineColor
options.tabView.itemView.textColor = Colours.flatColour.main.gray
options.tabView.itemView.selectedTextColor = Colours.flatColour.yellow.lighter //UIColor.black//UIColor.customSelectedTextColor
options.tabView.itemView.font = UIFont(name: "Biotif-Medium", size: 14)!
swipeMenuView.reloadData(options: options)
}
}
var tabTitles: [String] = ["All", "Friend Requests", "Items"]
var requests = [User]()
}
I reloadData again when populating the requests array and the array isnt empty.
The data source methods:
extension NotificationsViewController: SwipeMenuViewDataSource {
//MARK - SwipeMenuViewDataSource
func numberOfPages(in swipeMenuView: SwipeMenuView) -> Int {
return tabTitles.count
}
func swipeMenuView(_ swipeMenuView: SwipeMenuView, titleForPageAt index: Int) -> String {
return tabTitles[index]
}
func swipeMenuView(_ swipeMenuView: SwipeMenuView, viewControllerForPageAt index: Int) -> UIViewController {
let vc = NotificationsContentTable()
vc.currentUser = currentUser
vc.tableSize = swipeMenuView.bounds.size
if index == 0 {
vc.requests = requests
}else if index == 1 {
vc.requests = []
}else if index == 2 {
vc.requests = []
}
print("the requests are in = \(vc.requests)")
return vc
}
}

Answer 1

I've figured out where I was going wrong. Before returning the viewController in viewControllerForPageAt, you must add that viewController as a child with addChild(viewController).