ios - UITableView not refreshing on reloadData -

note: have read similar questions, none of answered question specifically. have been trying understand why uitableview not refreshing when data pieces added list. checked (through print() statements) , everytime call tableview.reloaddata(), checks length of array use, , nothing there. tried using function instead:

func refreshui() {      dispatch_async(dispatch_get_main_queue(),{         self.tableview.reloaddata()     }); } 

which found on answered question, did not fix situation. problem override func tableview(tableview: uitableview, cellforrowatindexpath indexpath: nsindexpath) -> uitableviewcell {} never getting called, though

override func tableview(tableview: uitableview, numberofrowsinsection section: int) -> int {}

is returning non-zero number when should.

code new info added list , should displayed:

   self.firebase.observeeventtype(.value, withblock:  { (snap) in             print("\n\n\n\n\n\nsnap recieved firebase: \n\n\(snap)\n\n")              var count = int(self.names.count)             var childcount = int(snap.childrencount)             print(childcount)             print(self.names)             print("names count: \(self.names.count)")              self.names.removeall()              child in snap.children {                 let c = child as! anyobject                   self.names.append(c.key!)                }               self.refreshui()            }) 

numberofrows method:

 override func tableview(tableview: uitableview, numberofrowsinsection section: int) -> int {   print("for tableview size, returning \(self.names.count)")      return self.names.count }