StackOverflow2013

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POheightForRowAtIndexPath for grouped UITableViewCell
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copied!<p>I'm using the following method implementation to calculate the height of a <code>UITableViewCell</code> which is containing multiline text: </p> <pre><code>- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { if (indexPath.section == 1 && indexPath.row == 1) { NSDictionary *fields = self.messageDetailsDictionary[@"fields"]; NSString *cellText = fields[@"message_detail"]; UIFont *cellFont = [UIFont systemFontOfSize:14.0]; CGSize constraintSize = CGSizeMake(250.0f, MAXFLOAT); CGSize labelSize = [cellText sizeWithFont:cellFont constrainedToSize:constraintSize lineBreakMode:NSLineBreakByWordWrapping]; return labelSize.height + 20; } else { return tableView.rowHeight; } } </code></pre> <p>For completeness, here's the <code>cellForRowAtIndexPath</code> entry for this cell:</p> <pre><code> UITableViewCell *cell = [[UITableViewCell new] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"DetailCell"]; if (cell == nil) { cell = [[UITableViewCell new] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"DetailCell"]; } cell.textLabel.lineBreakMode = NSLineBreakByWordWrapping; cell.textLabel.font = [UIFont systemFontOfSize:14.0]; NSDictionary *fields = self.messageDetailsDictionary[@"fields"]; cell.textLabel.numberOfLines = 0; // This means multiline cell.textLabel.text = fields[@"message_detail"]; return cell; </code></pre> <p>The <code>UITableViewCell</code> is in a Grouped <code>UITableView</code>, that's important because it affects the width of the cell.</p> <p>This is working to the extent that it does calculate a cell height that is large enough to accomodate the text being input, but it seems to be a little too large as there is a little too much space at the top and bottom of the cell. This is dependent on the quantity of text so I don't think it's related to the <code>return labelSize.height + 20;</code> statement. I suspect this is down to the '250.0f' value I'm using in <code>CGSizeMake</code> but I don't know what the correct value should be here.</p> <p>Ultimately what I want is to have a cell that has consistent padding above and below the text for any content size.</p> <p>Can anyone help?</p>

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