Josh Kahane Josh Kahane - 5 months ago 29
Objective-C Question

Change the UITableViewCell Height According to Amount of Text

I need to be able to adjust the height of a single cell in my UITableView so that it fits the amount of text in its detail label.

I have played with the following but it hasn't work for me:

How do I wrap text in a UITableViewCell without a custom cell

Hope you can help, thanks.

EDIT:

Attempted code:

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
cell.textLabel.numberOfLines = 0;
cell.textLabel.font = [UIFont fontWithName:@"Helvetica" size:17.0];
}


and

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *cellText = @"Go get some text for your cell.";
UIFont *cellFont = [UIFont fontWithName:@"Helvetica" size:17.0];
CGSize constraintSize = CGSizeMake(280.0f, MAXFLOAT);
CGSize labelSize = [cellText sizeWithFont:cellFont constrainedToSize:constraintSize lineBreakMode:UILineBreakModeWordWrap];

return labelSize.height + 20;
}


This hasn't worked, it shows the entire string on the cell, however the cell height isn't affected at all.

Answer

Based on the code you have provided, I think you are increasing only the cell height and not the cell.textLabel's height.

Ideally, you should set the frame size of cell.textLabel and the cell for you to see the full text in the cell.

A neat way to see whats wrong with a view in terms of size, is to color it different than the background (try setting cell.textLabel background to yellow) and see if the height is actually being set.

Here's how it should be

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    cell.textLabel.lineBreakMode = NSLineBreakByWordWrapping;
    cell.textLabel.numberOfLines = 0;
    cell.textLabel.font = [UIFont fontWithName:@"Helvetica" size:17.0];

    NSString *cellText = @"Go get some text for your cell.";
    UIFont *cellFont = cell.textLabel.font;
    CGSize constraintSize = CGSizeMake(280.0f, MAXFLOAT);
    CGSize labelSize = [cellText sizeWithFont:cellFont constrainedToSize:constraintSize lineBreakMode:UILineBreakModeWordWrap];
    cell.textlabel.frame.size = labelSize; 
    cell.text = cellText;
}

Hope this helps!

update: This is quite an old answer, and many lines in this answer may be deprecated.

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