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iOS 17: UITableViewCell layout implementing Auto Layout and dynamic content

👀 Views: 274 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-11
iOS UITableView AutoLayout Swift

I'm migrating some code and After trying multiple solutions online, I still can't figure this out. I'm working with a frustrating scenario with UITableViewCells when using Auto Layout to display dynamic content. I have a UITableView with custom UITableViewCells that contain a UILabel and an image view. The question arises when the text in the UILabel is dynamically updated, which causes the cell layout to break unexpectedly, resulting in overlapping text and images. I am using the latest iOS 17 SDK and Swift 5.3. Here's a simplified version of my UITableViewCell subclass: ```swift class CustomTableViewCell: UITableViewCell { let titleLabel = UILabel() let customImageView = UIImageView() override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) { super.init(style: style, reuseIdentifier: reuseIdentifier) contentView.addSubview(titleLabel) contentView.addSubview(customImageView) setupConstraints() } required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") } private func setupConstraints() { titleLabel.translatesAutoresizingMaskIntoConstraints = false customImageView.translatesAutoresizingMaskIntoConstraints = false NSLayoutConstraint.activate([ customImageView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 10), customImageView.centerYAnchor.constraint(equalTo: contentView.centerYAnchor), customImageView.widthAnchor.constraint(equalToConstant: 50), customImageView.heightAnchor.constraint(equalToConstant: 50), titleLabel.leadingAnchor.constraint(equalTo: customImageView.trailingAnchor, constant: 10), titleLabel.trailingAnchor.constraint(equalTo: contentView.trailingAnchor, constant: -10), titleLabel.centerYAnchor.constraint(equalTo: contentView.centerYAnchor) ]) } } ``` When I update the text of `titleLabel` using the following code in `cellForRowAt`: ```swift cell.titleLabel.text = "This is a dynamically updated title that might be very long and should wrap properly" ``` The label sometimes overlaps with the image view, especially if the text is long. I made sure to set the number of lines to 0 and adjust the line break mode: ```swift cell.titleLabel.numberOfLines = 0 cell.titleLabel.lineBreakMode = .byWordWrapping ``` If I manually call `cell.layoutIfNeeded()` after setting the text, it seems to fix the scenario temporarily, but it's not a graceful solution and can lead to performance degradation. I've also tried using `invalidateIntrinsicContentSize()` without success. Any suggestions on how to resolve this layout scenario efficiently while ensuring that the cell adapts properly to dynamic content? Am I missing something fundamental in my Auto Layout configuration? My development environment is Ubuntu. Has anyone else encountered this?