CODEWITHSUNDEEP
iosswiftuitableviewautolayout
Sam
Sam

Reputation: 61

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

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

Upvotes: 0

Views: 1827

Answers (6)

Nischal Hada
Nischal Hada

Reputation: 3288

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

}

Upvotes: 0

idocode
idocode

Reputation: 411

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.

Upvotes: 0

Mike Gledhill
Mike Gledhill

Reputation: 29161

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...)

Upvotes: 1

Abdul Yasin
Abdul Yasin

Reputation: 3508

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

Upvotes: 0

Bhavuk Jain
Bhavuk Jain

Reputation: 2187

Don't set the height explicitly. Use this:

tableView.estimatedRowHeight = 100
tableView.rowHeight = UITableViewAutomaticDimension

Upvotes: 1

Taewoong Kong
Taewoong Kong

Reputation: 11

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

Upvotes: 1

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