I want to reload my table data inside a block in this method:
import UIKit
import AssetsLibrary
class AlbumsTableViewController: UITableViewController {
You are calling performSelectorOnMainThread on UIViewController instead of UITableView's object
May be your code:
self.performSelectorOnMainThread(Selector(reloadData), withObject: self.tblMainTable, waitUntilDone: true)
Instead of:
self.tblMainTable.performSelectorOnMainThread(Selector("reloadData"), withObject: nil, waitUntilDone: true)
you are getting that message because UIViewController does't have any method named "performSelectorOnMainThread"