UITableViewCell auto height based on amount of UILabel text

Question

I have a bit of a tricky set up in my storyboard, I have a UIViewController that holds a UITableViewController. Within the UITableViewController I have several prototypecell

Answer 1

step1:Give below constraint to UIView that is inside to the contentView.

• Leading constraint to contentView
• Top constraint to contentView
• Bottom constraint to contentView
• Trailing constraint to contentView

step2: Give below constraint to UIlabel

• Leading constraint to UIImageView
• Top constraint to UIView
• Bottom constraint to UIView
• Trailing constraint to UIView

step3: Then select your Trailing constraint of IUlabel and select edit option and then select constant and select greaterThanEqual option.

step4: set label's numberofline = 0

step5: Add this code into viewDidLoad()

yourtableview.estimatedRowHeight = 80.0
yourtableview.rowHeight = UITableViewAutomaticDimension

Answer 2

After populating the UILabel and applying constrains, get the height of the label and set it as the height of the UIView.

After that call -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath and pass the height of the UILabel/UIView so that it gets the actual height for that row

Answer 3

Use UITableViewAutomaticDimension

tableView.rowHeight = UITableViewAutomaticDimension
tableView.estimatedRowHeight = 300

Answer 4

To go a little further on Dao's answer..

He is correct, you need to use UITableViewAutomaticDimension

Also, you need to ensure that you setup your constraints in a way that all of the content in the cell is constrained to the cells contentView. So your label will likely need constraints such as

• Leading constraint to ImageView
• Top constraint to contentView
• Bottom constraint to contentView
• Trailing constraint to contentView

Make sure that you set the UILabel to multiline (or lines = 0) and it should work.

If you are using the heightForRowAt delegate functions ensure you return UITableViewAutomaticDimension

Answer 5

Swift 4.2 and 5. As mention above you can set UITableView object property or

tblView.rowHeight = UITableView.automaticDimension 
tblView.estimatedRowHeight = 300

you can also define the same by implementing UITableViewDelegate methods

extension ViewController: UITableViewDelegate {
      func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
        return 300
      }
      func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return UITableView.automaticDimension
      }
    }