viewForHeaderInSection not getting called on reloadData

Question

viewForHeaderInSection is not getting called on reloadData. How ever it is getting called first time when the view is loaded. Very strange. Any help?I've implemented the below delegate methods.

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return 0;
}

-(CGFloat)tableView:(UITableView *)tableView estimatedHeightForHeaderInSection:(NSInteger)section
{
    return 1500.0f;
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
    return  UITableViewAutomaticDimension;
}

-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {}

Also the tableView outlet, delegate and datasource are correctly connected. — uzair shahzad, Sep 27 '18 at 08:06
Edit your question with that code and format it Also the additional informations. It's not really readable in comments, and can be missed while it's important information. — Larme, Sep 27 '18 at 08:20
For me work just fine, maybe the issue is in other part of your code. — Kosuke Ogawa, Sep 27 '18 at 08:33
On reload all other methods are getting called except the viewForHeader. — uzair shahzad, Sep 27 '18 at 08:35
I don't see there's any executable code in your viewForHeaderInSection(). Did you try adding NSLog() statement? — iamyogish, Sep 27 '18 at 08:51

Kosuke Ogawa · Answer 1 · 2018-09-27T14:57:12.800

0

Your heightForHeaderInSection probably return 0 because UITableViewAutomaticDimension does not work. In order to make UITableViewAutomaticDimension work you have to set all left, right, bottom, and top constraints relative to cell container view.

edited Sep 27 '18 at 14:57

answered Sep 27 '18 at 09:05

Kosuke Ogawa

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I can't return 10. The seize is calculated based on constraints. So I have to return UITableViewAutomaticDimension. – uzair shahzad Sep 27 '18 at 09:26
OK, in that case You need to implement `self.tableView.estimatedSectionHeaderHeight` https://stackoverflow.com/a/29763200/1155354 – Kosuke Ogawa Sep 27 '18 at 11:06
then why does it works first time when the view is loaded and does not work when I explicitly call reloadData? – uzair shahzad Sep 28 '18 at 05:39

viewForHeaderInSection not getting called on reloadData

1 Answers1