Unfortunately you cannot do this using cornerRadius and autolayout — the CGLayer is not affected by autolayout, so any change in the size of the view will not change the radius which has been set once causing, as you have noticed, the circle to lose its shape. You can create a custom subclass of UIImageView … Read more
I don’t know this is clearly documented or not, but adding [cell layoutIfNeeded] before returning cell solves your problem. – (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { TableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:@”TestCell”]; NSUInteger n1 = firstLabelWordCount[indexPath.row]; NSUInteger n2 = secondLabelWordCount[indexPath.row]; [cell setNumberOfWordsForFirstLabel:n1 secondLabel:n2]; [cell layoutIfNeeded]; // <- added return cell; }
The following removes the warning without needing to disable animation. And assuming Apple eventually fixes the root cause of the warning, it shouldn’t break anything else. extension UIAlertController { func pruneNegativeWidthConstraints() { for subView in self.view.subviews { for constraint in subView.constraints where constraint.debugDescription.contains(“width == – 16”) { subView.removeConstraint(constraint) } } } } This can then … Read more
For all solutions, note that there is no need to explicitly call reloadData in viewDidLoad: it will happen automatically. Solution 1 Inspired by Samantha idea: invalidateLayout asynchronously in viewDidLoad. override func viewDidLoad() { super.viewDidLoad() //[…] for _ in 0 ..< 1000 { array.append(randomKeyByBitLength(Int(arc4random_uniform(8)))!) } DispatchQueue.main.async { self.collectionView.collectionViewLayout.invalidateLayout() } } Solution 2 (imperfect, see DHennessy13 improvement … Read more
This is just an extension as to how to use “Vary Traits” quickly in your project for adding different layouts for iPad and iPhones. Please read this for understanding more on the Size classes. https://developer.apple.com/reference/uikit/uitraitcollection If you are skipping the example which follows below, do read the Summary in the end. OBJECTIVE : You need … Read more
I would suggest the following: Add a height constraint to your collection view. Set its priority to 999. Set its constant to any value that makes it reasonably visible on the storyboard. Change the bottom equal constraint of the collection view to greater or equal. Connect the height constraint to an outlet. Every time you … Read more
Try to lower the priority of your _collapsedtextHeightConstraint to 999. That way the system supplied UIView-Encapsulated-Layout-Height constraint always takes precedence. It is based on what you return in -tableView:heightForRowAtIndexPath:. Make sure to return the right value and your own constraint and the generated one should be the same. The lower priority for your own constraint … Read more