Autolayout UILabel height changes on second view appearence

Question

I have a dynamic UILabel in a TableHeaderView (see this question) and everything is okay and fine, but if I set the text of the label to nil or @"" the label keeps the size of the height that it had when the text was in.

I'm changing the text in a different viewController that I'm presenting modally. So i would like to show it you in 3 steps:

Original state

State one

After setting the text to @""

In this step I presented the viewController to remove the text and then I dismiss the viewController to go back to this View.

State two

Reappear this View

So I have to open the editing viewController to just dismiss it again. Then it is like i want it to..:

State three

Any ideas why? I'm re-sizing the TableViewHeader like this in the viewWillAppear method:

- (void)resizeTableViewHeader
{
    //GET THE SIZE OF THE CONTAINER
    CGSize fittingSize = [self.header systemLayoutSizeFittingSize: UILayoutFittingCompressedSize];
    self.header.frame = CGRectMake(0, 0, 320, fittingSize.height);
    self.tableView.tableHeaderView = self.header;
}

Any idea why I have to visit the View twice?

While creating the UIlabel set the height to minimum height and when the uilabel will have text it will autoresize its height .Try that . — Jayaprada, Apr 10 '14 at 09:48
I'm doing that and it works, but it isnt when the view reappear — SaifDeen, Apr 10 '14 at 10:11

score 0 · Accepted Answer · edited May 23 '17 at 12:13

0

Maybe it needs constraints updating somewhere, or layoutIfNeeded. Other solution could be found in my other answer.

edited May 23 '17 at 12:13

Community

1
1

answered Apr 10 '14 at 09:12

MANIAK_dobrii

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I dont got my macbook here atm. Do I can call `layoutIfNeeded` on a UILabel? – SaifDeen Apr 10 '14 at 09:32
I guess it needs to be placed somewhere above in the view hierarchy, but you could give it a try. – MANIAK_dobrii Apr 10 '14 at 10:07

score -1 · Answer 2 · answered Apr 10 '14 at 09:49

-1

You should implemente the tableViewDelegate method and calculate the header height.

- (CGFloat) tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    CGFloat height = //Calculate the dynamic height.
    return height;
}

answered Apr 10 '14 at 09:49

Mohd Iftekhar Qurashi

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That's not about table section header, it's about the whole table view header. (check tableHeaderView) – MANIAK_dobrii Apr 10 '14 at 10:08

Autolayout UILabel height changes on second view appearence

2 Answers2

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