reloadData（）不会更新父级TableView

Question

I have a custom TableViewController called LibraryTableViewController .

class LibraryTableViewController: UITableViewController {

contains this data for rendering.

var items: [item] = []

Then, I have another class for Firebase that inherits the LibraryTableViewController as a delegate. (I am not sure if this is the right description.)

class FirebaseDB : LibraryTableViewController {

Then, I have a global instance of FirebaseDB as

let database = FirebaseDB()

I have an observer listening to the changes in the database in the Firebase class, and I was updating

self.items

Then, trying to refresh the LibraryTableViewController using

self.tableView.reloadData()

I might be wrong in understanding my current problem. What I think is that the items array that I am updating isn't the same instance as the tableView that I see on the app. It is updating the FirebaseDB instance database's items which isn't being rendered on the app. How do I make sure that the right instance is being updated?

Answer 1

a lot of code missing but you can check:

1. thread must be main, maybe you call from background
2. check is the items is changed the numbers for you
3. check is the tableview not nil
4. check your delegate maybe its also nil

but better give us more code)