iOS Firebase - print(snapshot.value) to TableView - ios

Question

I am connecting my firebase database with my Xcode Project. I have successfully used the print(snapshot.value) to print my snapshot of the database into the console. However, I am struggling to print my snapshot of data into the TableView. Thank you.
Here is my code :
import UIKit
import FirebaseDatabase
class ViewController: UITableViewController {
#IBOutlet var cosmos: UITextView!
#IBOutlet var gallonsTXT: UITableView!
#IBOutlet var tables: UITableView!
#IBOutlet var Finale: UILabel!
var ref:DatabaseReference?
var databaseHandle:DatabaseHandle?
var postData = [String]()
override func viewDidLoad() {
super.viewDidLoad()
gallonsTXT.delegate = self
gallonsTXT.dataSource = self
ref = Database.database().reference()
databaseHandle = ref?.child("Total gallons:").observe(.childAdded, with: { (snapshot) in
print(snapshot.value)
let post = snapshot.value as? String
if let actualPost = post {
self.postData.append(actualPost)
self.tableView.reloadData()
}
})
// Do any additional setup after loading the view, typic ally from a nib.
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return postData.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "PostCell")
cell?.textLabel?.text = postData[indexPath.row]
return cell!
}
}

Answer 1

Adjust your view did load to the following. You must declare a dictionary in order to properly read and use data from Firebase.
override func viewDidLoad() {
super.viewDidLoad()
gallonsTXT.delegate = self
gallonsTXT.dataSource = self
ref = Database.database().reference()
databaseHandle = ref?.child("Total gallons:").observe(.childAdded, with: { (snapshot) in
print(snapshot.value)
if let dict = snapshot.value as? [String: Any] {
let post = dict["your data key"] as! String
self.postData.append(actualPost)
self.tableView.reloadData()
}
})
// Do any additional setup after loading the view, typic ally from a nib.
}
If this does not work, force unwrap the text in your text field and see if it produces a nil error. in CellForRowAtIndexPath