Iphone – Custom UITableViewCell with Subtitle style

Your UITableViewDelegate should implement tableView:heightForRowAtIndexPath:

Objective-C

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return [indexPath row] * 20;
}

Swift 5

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
    return indexPath.row * 20
}

You will probably want to use NSString's sizeWithFont:constrainedToSize:lineBreakMode: method to calculate your row height rather than just performing some silly math on the indexPath :)

Well, this one cost me an afternoon, but I think I figured it out. As far as I can tell, this appears to be a bug in how UITableViewCell is laying out the textLabel and detailTextLabel. When you set the row height, it seems to allocate equal height to the two labels, which means that you get exactly the behavior you're seeing above, even though detailTextLabel needs more room. Here are the two things I did to fix the problem. I had to subclass UITableViewCell to fix it, but it's a minimal amount of code.

First, make sure you're calculating the height of each row properly. Put this method into your table view delegate. Replace the font methods with your own:

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
   NSString *cellDetailText = [[self itemForIndexPath: indexPath] detailDescription];
   NSString *cellText = [[self itemForIndexPath: indexPath] description];
   // The width subtracted from the tableView frame depends on:
   // 40.0 for detail accessory
   // Width of icon image
   // Editing width
   // I don't think you can count on the cell being properly laid out here, so you've
   // got to hard code it based on the state of the table.
   CGSize constraintSize = CGSizeMake(tableView.frame.size.width - 40.0 - 50.0, CGFLOAT_MAX);
   CGSize labelSize = [cellText sizeWithFont: [self cellTextLabelFont] constrainedToSize:constraintSize lineBreakMode:UILineBreakModeWordWrap];
   CGSize detailSize = [cellDetailText sizeWithFont: [self cellDetailTextLabelFont] constrainedToSize:constraintSize lineBreakMode:UILineBreakModeWordWrap];

   CGFloat result = MAX(44.0, labelSize.height + detailSize.height + 12.0); 
   return result;
}

Then, subclass UITableViewCell and override layoutSubviews:

#import "UITableViewCellFixed.h"


@implementation UITableViewCellFixed
- (void) layoutSubviews {
   [super layoutSubviews];
   self.textLabel.frame = CGRectMake(self.textLabel.frame.origin.x, 
                                      4.0, 
                                      self.textLabel.frame.size.width, 
                                      self.textLabel.frame.size.height);
   self.detailTextLabel.frame = CGRectMake(self.detailTextLabel.frame.origin.x, 
                                           8.0 + self.textLabel.frame.size.height, 
                                           self.detailTextLabel.frame.size.width, 
                                           self.detailTextLabel.frame.size.height);
}
@end