[ios] Dynamic Height Issue for UITableView Cells (Swift)

Set automatic dimension for row height & estimated row height and ensure following steps:

@IBOutlet weak var table: UITableView!

override func viewDidLoad() {
    super.viewDidLoad()

    // Set automatic dimensions for row height
    // Swift 4.2 onwards
    table.rowHeight = UITableView.automaticDimension
    table.estimatedRowHeight = UITableView.automaticDimension


    // Swift 4.1 and below
    table.rowHeight = UITableViewAutomaticDimension
    table.estimatedRowHeight = UITableViewAutomaticDimension

}



// UITableViewAutomaticDimension calculates height of label contents/text
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
    // Swift 4.2 onwards
    return UITableView.automaticDimension

    // Swift 4.1 and below
    return UITableViewAutomaticDimension
}

For Example: if you have a label in your UITableviewCell then,

  • Set number of lines = 0 (& line break mode = truncate tail)
  • Set all constraints (top, bottom, right left) with respect to its superview/ cell container.
  • Optional: Set minimum height for label, if you want minimum vertical area covered by label, even if there is no data.

Here is sample label with dynamic height constraints.

enter image description here

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