Programmatic swift: TableView inside a TableView - swift

Question

I'm currently trying to put a tableview inside a tableview, but programmatically (in order to understand better wtf I'm doing in the storyboard way of doing this). I'm currently stuck at showing the inner table, any help please?
class ContactsViewController: UIViewController, UITabBarDelegate,
UITableViewDataSource, UITableViewDelegate {
private let contacts = ContactAPI.getData()
let contactsTableView = UITableView()
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(contactsTableView)
contactsTableView.translatesAutoresizingMaskIntoConstraints = false // enable Auto-Layout
contactsTableView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
contactsTableView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true
contactsTableView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true
contactsTableView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
contactsTableView.dataSource = self
contactsTableView.delegate = self
contactsTableView.register(ContactsCell.self, forCellReuseIdentifier: "contactCell")
contactsTableView.rowHeight = 1000
contactsTableView.estimatedRowHeight = 100
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.contacts.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "contactCell", for: indexPath) as! ContactsCell
cell.jobLabel.text = contacts[indexPath.row].jobTitle
cell.nameLabel.text = contacts[indexPath.row].name
return cell
}
}
The external TableViewCell is given by
class ContactsCell: UITableViewCell {
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
contentView.addSubview(image)
contentView.addSubview(nameLabel)
contentView.addSubview(jobLabel)
contentView.addSubview(tablello)
}
// working code that defines image, nameLabel, jobLabel
let tablello: UITableView = {
let tab = UITableView()
let data = innerTable()
tab.dataSource = data
tab.delegate = data
tab.frame = CGRect (x: 0, y: 0, width: 300, height: 300)
tab.register(gInnerCell.self, forCellReuseIdentifier: "gennaroCell")
tab.translatesAutoresizingMaskIntoConstraints = false
return tab
}()
}
And relative classes
class innerTable: UIViewController, UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 10
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "gennaroCell", for: indexPath) as! gInnerCell
cell.labelloNapoli.text = "\(indexPath.row)"
print("AO GENNà")
return cell
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
print("loaded inner")
}
}
class gInnerCell: 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
}
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
contentView.addSubview(labelloNapoli)
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
let labelloNapoli:UILabel = {
let lable = UILabel()
lable.frame = CGRect(x: 0, y: 0, width: 300, height: 300)
return lable
}()
}
I've tried turning tablello into a separate View, and adding there the table as a subview, but (although it printed the inside print() ) it messes up all my UI.

Answer 1

In general what are you trying to accomplish by putting a tableView inside of another tableView? Are you able to display the same information using a custom tableViewCell? Or better yet use a CollectionView as they are very flexible when it comes to UI. Sorry for not answering the question; Just trying to get a better understanding of what you are trying to accomplish UI wise.