How to resize UITableView height according to the height of UITableViewCells?

Question

I have a tableview and I set autolayout to the cells, so one cell's height might be 50, another ones might be 120. I need to show max 2 cells, so if count > 2, then cell count = 2, else it equals to the cells count.

My problem is resizing UITableView height according to the each cell size. How can I properly set UITableView height constraint value?

I hope I could explain what I want, if you have any question, please ask me

Load your table view data and force layout with tableview.layoutIfNeeded. Then you can set : tableviewHeightContraint.constant = tableview.contentSize.height — stefos, May 16 '16 at 12:05

score 1 · Answer 1 · answered May 16 '16 at 09:35

1

func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    if indexPath.row == 0 { 
        return 50 
    } else { 
        return 120 
    } 
}

answered May 16 '16 at 09:35

Taewoong Kong

11
2

score 1 · Answer 2 · answered May 16 '16 at 09:46

1

Don't set the height explicitly. Use this:

tableView.estimatedRowHeight = 100
tableView.rowHeight = UITableViewAutomaticDimension

answered May 16 '16 at 09:46

Bhavuk Jain

2,167
1
15
23

This is for adapting only cell height not the table view height – Abdul Yasin May 16 '16 at 09:47
Do you mean table view content size? When you use autolayout, the tableview content size is automatically updated. – Bhavuk Jain May 16 '16 at 09:48
No. I mean to say Table view height – Abdul Yasin May 16 '16 at 09:49
Then you can give the tableview height = tableview content size. – Bhavuk Jain May 16 '16 at 09:50

score 1 · Answer 3 · edited May 23 '17 at 12:08

Have a look at the code I posted on this StackOverflow article.

Dynamic height

You simply add a static function to your UITableViewCell, which "measures itself", then you store that in a "row height" variable.

+(CGSize)preferredSize
{
    static NSValue *sizeBox = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        // Assumption: The XIB file name matches this UIView subclass name.
        NSString* nibName = NSStringFromClass(self);
        UINib *nib = [UINib nibWithNibName:nibName bundle:nil];

        // Assumption: The XIB file only contains a single root UIView.
        UIView *rootView = [[nib instantiateWithOwner:nil options:nil] lastObject];

        sizeBox = [NSValue valueWithCGSize:rootView.frame.size];
    });
    return [sizeBox CGSizeValue];
}

(You would think that by now, in 2016, Apple would have provided us with a simpler way of doing this...)

score 0 · Answer 4 · answered May 16 '16 at 09:49

Try to store UITableViewCell heights in an array at the time of calculating height.

If you are manually calculating height, store the height in array. if you are adapting cell height automatically, get the cell and then its height and store it in an array

score 0 · Answer 5 · answered May 16 '16 at 10:01

If your ios target is >= 8, then you can make your tableview cell adjust without much pain.

//provide the estimated height of your cell row over here
self.tableView.estimatedRowHeight = 60
self.tableView.rowHeight = UITableViewAutomaticDimension

Don't forget to put top,bottom,left,right constraints for all the views inside content view of the cell.

score 0 · Answer 6 · answered May 16 '16 at 10:32

Try the below code it works out

func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    return UITableViewAutomaticDimension
}

func tableView(tableView: UITableView, estimatedHeightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    return UITableViewAutomaticDimension

}

How to resize UITableView height according to the height of UITableViewCells?

6 Answers6