ReloadData doesn't fire tableView:numberOfRowsInSection:

Question

I just encouter a problem, that I call UITableView reloadData method, but nothing happened. No tableView:numberOfRowsInSection is called.

The scenario is:

Table works fine in view A (has the UITableView), then view B shows and hide, after this step, the UITableView reloadData is not working anymore. I am sure reloadData is called in main UI thread and the data source has been changed. Also NO IBOutlet connection issue.

your question couldn't be any more vague. do post some code or give some explanation as to what you have done. — Nitin Alabur, Jul 31 '12 at 04:06
Agreed, we can't diagnose what's going wrong without seeing the source code. — Rob, Jul 31 '12 at 04:10
My guess is, If the view B is in above the view A(has the UITableView) then the reloadData won't work, Just try removing the view B from it's superview. — Shanmugaraja G, Jul 31 '12 at 04:41
I tried to reloadData after the view B viewDidDisappear, still no working — firer, Jul 31 '12 at 05:37
I guess it relates to visibility of UITableView, but it's weird that is still not working after the view B dismissed. — firer, Jul 31 '12 at 05:42

score 0 · Answer 1 · answered Jul 31 '12 at 04:08

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Try putting your call to reloadData in viewWillAppear.

answered Jul 31 '12 at 04:08

Sonny Parlin

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why put it in viewWillAppear? – firer Jul 31 '12 at 05:35
If your first view (view A) is never unloaded, then viewDidLoad won't be called when you go back to it, but viewWillAppear will. – Sonny Parlin Jul 31 '12 at 13:09
That's assuming you had reloadData inside of viewDidLoad to begin with. – Sonny Parlin Jul 31 '12 at 13:23
Also, make sure you are re-fetching your data from your data source before calling reloadData, otherwise reloadData won't show you anything new even if it is working properly. – Sonny Parlin Jul 31 '12 at 13:27

score 0 · Answer 2 · answered Jul 31 '12 at 04:28

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Set BreakPoint on [tableView reloadData]; check that your tableView object is not nil.

answered Jul 31 '12 at 04:28

Pandey_Laxman

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ReloadData doesn't fire tableView:numberOfRowsInSection:

2 Answers2