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tableView cell height... how to customize it?

Answer 1

+1 A:

Have a look at

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

For the indexpath just check for which row and section and adjust the height accordingly

Liam 2010-09-17 16:39:50

Answer 2

+4 A:

You can look at this method:

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

In your case, the code should look like:

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
   if (indexPath.section == 1 && indexPath.row == 1) {
      return SPECIAL_HEIGHT;
   }
   return NORMAL_HEIGHT;
}

You can look for more details about the method here

vodkhang 2010-09-17 16:39:57

Ok thanks! But I have a problem... If I type a number like return 60.0; works greatly but if I type some code for returning the height based on a UILabel text, cell background don't appear... I added this code in the cellForRowAtIndexPath method:

Matthew 2010-09-17 17:04:33

else if (indexPath.section == 1 descrizioneLabel.font = [UIFont boldSystemFontOfSize:14.0]; descrizioneLabel.backgroundColor = [UIColor clearColor]; descrizioneLabel.numberOfLines = 0; descrizioneLabel.text = wish.descrizione; [cell.contentView addSubview:descrizioneLabel]; }

Matthew 2010-09-17 17:04:54

and this is the method posted by you: -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { if (indexPath.section == 1 UIFont *cellFont = [UIFont boldSystemFontOfSize:14.0]; CGSize constraintSize = CGSizeMake(280.0, MAXFLOAT); CGSize labelSize = [testo sizeWithFont:cellFont constrainedToSize:constraintSize lineBreakMode:UILineBreakModeWordWrap]; return labelSize.height; } return 44.0;}

Matthew 2010-09-17 17:05:39

I am not sure but here is my guess: the method heightForRow is called before the method cellForRow, so at the time you call descrizoneLabel in heightForRow, it is not constructed yet, can you test that. I don't have XCode here

vodkhang 2010-09-17 17:35:18

Ok now I understand... And how can I do to create the label and then call the heightForRow methods? Thanks ;)

Matthew 2010-09-17 23:45:21

yeah, it is possible

vodkhang 2010-09-18 00:57:47

Is it possible to create the label in the viewDidLoad method? Are this method called before the heightForRow method? How can I call tableViewCell from the viewDidLoad method?

Matthew 2010-09-18 15:43:37

viewDidLoad is always called once when you init the view and you can create the view. you can create the label in viewDidLoad and then call `[self.tableView reloadData];`

vodkhang 2010-09-18 16:03:25

I've just created the label in the viewDidLoad method and in the cellForRowAtIndexPath I added it to the cell with [cell.contentView addSubview:label] I also added some NSLogs in the heightForRow method and the code works because in the console I see the value! Now the cell change height but I use initWithFrame:CGRectMake(10, 11, 285, 50) to create the label then if the text is short, the label isn't centred with the cell and it exit from it... how can I retrieve the width and the height of the cell for use it in the initWithFrame method? Thanks :D If you don't understand me I'll email you ;)

Matthew 2010-09-18 17:52:25

it should be better to email me, it started to be a long comment, `[email protected]`

vodkhang 2010-09-18 23:26:50

Oh I solved the problem buy adding a method that calculate an height based on a text string then in the initWithFrame method I added the returned value :) Thanks a lot!

Matthew 2010-09-19 14:00:44

ok. You are welcome

vodkhang 2010-09-19 14:02:23

Answer 3

+1 A:

You can implement the following method to return the height for the row at a given index path:

http://developer.apple.com/library/ios/#documentation/uikit/reference/UITableViewDelegate_Protocol/Reference/Reference.html%23//apple_ref/occ/intfm/UITableViewDelegate/tableView:heightForRowAtIndexPath:

jlehr 2010-09-17 16:40:30

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