UITableViewAutomaticDimension not working in Xcode 6.3

Question

I updated my Xcode to 6.3 along with Swift 1.2, and I made the transition.

Everything works except dynamic row height for table view. I have those on 3 completely different table views, so it probably isn't something else influencing the bug.

I set all of the table views to:

tableView.rowHeight = UITableViewAutomaticDimension

and all of my xib files are properly constrained.

Any ideas?

Did you add an estimatedRowHeight? without that it will not work — darren102, May 19 '15 at 18:34

Ken · Accepted Answer · 2017-06-12T09:05:27.373

54

I simply added UITableViewAutomaticDimension to estimatedrowforindexpath as well. You can see how it works on the BEAM App (under 'people' category).

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    return UITableViewAutomaticDimension;
}

- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath{
    return UITableViewAutomaticDimension;
}

edited Jun 12 '17 at 09:05

answered Apr 10 '15 at 17:02

Ken

572
6
4

4

Yes, you should provide an estimate. Additionally, according to the [docs](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITableViewDelegate_Protocol/index.html#//apple_ref/occ/intfm/UITableViewDelegate/tableView:heightForRowAtIndexPath:), there are performance implications in using the callbacks instead of the `rowHeight` and `estimatedRowHeight` properties. You could set `rowHeight` to `UITableViewAutomaticDimension`, then `estimatedRowHeight` to an arbitrary estimated value. – József Vesza May 19 '15 at 19:00

score 3 · Answer 2 · answered Jun 27 '16 at 12:24

Estimated row height needs to be provided.

It is better not to implement estimatedHeightForRowAtIndexPath: unless necessary.

estimatedRowHeight is cheaper provided you can come up with a value

    tableView.rowHeight = UITableViewAutomaticDimension
    tableView.estimatedRowHeight = 30 //Provide any appropriate value

UITableViewAutomaticDimension not working in Xcode 6.3

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