Height issues with UILabel in UITableViewCell - ios

Question

I'm experiencing some trouble with a UILabel in a UITableViewCell that extend its height nicely. But when the cell is reused, and the UILabel text changes, scrolling back up passed labels with correct height when I scrolled down, now is wrong.
As far as I can understand, this is an issue with the UILabel height, but I don't understand what and why it happens.
Heres a video of it happening:
You can see how the labels in the table cells below the images is looking good, but when I scroll back up, they are suddenly only two lines, instead of four.
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
InstagramMedia *media = mediaArray[indexPath.section];
CGSize maximumLabelSize = CGSizeMake(304.0f, 20000.0f);
CGSize expectedLabelSize = [media.caption.text sizeWithFont:[UIFont systemFontOfSize:13.0f] constrainedToSize:maximumLabelSize lineBreakMode:NSLineBreakByWordWrapping];
return (320.0f + expectedLabelSize.height + 20.0f);
}
Am I missing something here?

Answer 1

I have tried using slightly different approach and it worked in the simulator. Cells kept their height on scrolling.
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
InstagramMedia *media = mediaArray[indexPath.section];
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:#"HelveticaNeue" size:12], NSFonatAttributeName, nil];
NSAttributedString *textStr = [[NSAttrebutedString alloc]initWithString:media.caption.text attributes:attributes];
CGSize maximumLabelSize = CGSizeMake(304.0f, 20000.0f);
CGRect expLblRect = [textStr boundingRectWithSize:maximumLabelSize options:NSStringDrawingUsesLineFragmentOrigin context:nil];
return (320.0f + expLblFrame.size.height + 20.0f);
}

Answer 2

Try this :
- (CGFloat)tableView:(UITableView *)_tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
UILabel *lbl = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 186, 0)]; //max width that is allowed for label
lbl.numberOfLines = 0;
lbl.lineBreakMode = NSLineBreakByWordWrapping;
int GAP = 3;
float height = 0;
float fontSize = 14;
NSString *cellText = yourtext;
lbl.font= [ UIFont fontWithName:FONT_NAME_Ubuntu size: fontSize];
bl.text = cellText;
[lbl sizeToFit];
height += lbl.frame.size.height;
height += GAP;
return height;
}
Or you can try this :
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
/*
for dynamic cell heigh according to the description display in cell
*/
NSDictionary *dict1 = (NSDictionary*)[array objectAtIndex:indexPath.row];
NSString *cellText = [dict1 valueForKey:#"test"];
UIFont *cellFont = [UIFont fontWithName:FONT_NAME_GOTHAM_4 size:11.0];
CGSize constraintSize = CGSizeMake(280.0f, MAXFLOAT);
CGSize labelSize = [cellText sizeWithFont:cellFont constrainedToSize:constraintSize lineBreakMode:NSLineBreakByWordWrapping];
return labelSize.height + 80;
}