Why is this not displaying information in a UITableView? - ios

Question

I would really appreciate any help on this. I'm very new to coding, and have no luck implementing this feature so far. I'm looking to populate a UITableViewCell with information gathered from Firestore, namely: title, username and content. I've been able to print the 'title' array successfully, but have not been able to actually populate this into the cells.
This is the HomeViewController, where my UITableView is:
class HomeViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var tableView: UITableView!
#IBOutlet weak var logoutButton: UIButton!
var postArray: [String] = []
var documents: [DocumentSnapshot] = []
let db = Firestore.firestore()
let currentUserID = Auth.auth().currentUser?.uid
// Find the UserIDs of people following
// Where Field for those UserIDs in "Posts"
override func viewDidLoad() {
super.viewDidLoad()
getFollowingPosts()
configureTableView()
}
func getFollowingPosts() {
let searchForFollowing = db.collection("users").document(currentUserID!).collection("Following")
searchForFollowing.getDocuments { (snapshot, error) in
for documents in snapshot!.documents {
let followedUID = documents.get("uid")
print(followedUID!)
self.db.collection("posts").whereField("uid", isEqualTo: followedUID!).getDocuments { (querySnapshot, error) in
for documents in querySnapshot!.documents {
let uid = documents.get("uid") as! String
let title = documents.get("Title") as! String
let ProfilePictureURL = documents.get("ProfilePictureURL") as! String
let username = documents.get("username") as! String
let content = documents.get("Content") as! String
self.postArray.append(title)
print(self.postArray)
}
self.tableView.reloadData()
}
}
}
}
func configureTableView() {
tableView.delegate = self
tableView.dataSource = self
tableView.register(PostTableViewCell.self, forCellReuseIdentifier: "PostCell")
// remove separators for empty cells
tableView.tableFooterView = UIView()
// remove separators from cells
tableView.separatorStyle = .none
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
postArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "PostCell", for: indexPath) as! PostTableViewCell
let post = postArray[indexPath.row]
return cell
}
}
This is my PostTableViewCell:
class PostTableViewCell: UITableViewCell {
#IBOutlet weak var usernameLabel: UILabel!
#IBOutlet weak var titleLabel: UILabel!
#IBOutlet weak var contentLabel: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
addSubview(usernameLabel)
addSubview(titleLabel)
addSubview(contentLabel)
}
}
If anyone could help, this would be massively appreciated. Like I said, I've been struggling a lot with this one.

Answer 1

You don't seem to be setting the data onto anything in the cell.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "PostCell", for: indexPath) as! PostTableViewCell
let post = postArray[indexPath.row]
cell.titleLabel.text = post
return cell
}
Also, modify the register method if you're using nib
func configureTableView() {
//...
tableView.register(UINib(nibName: "PostCell", bundle: nil), forCellReuseIdentifier: "PostCell")
//...
}
Note: Make sure that the nib file has nib's identifier set as "PostCell".