Attributed string in tableviewcell not showing bold text until the cell is dequeued and reloaded

Question

I have a table view, in which the cells have a label with some attributed text. The text is being set correctly from cellForRowAtIndexPath . The color of the text is being correctly set but the bold attribute is not being displayed until the cell is dequeued.

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
        MyCell *cell = [tableView dequeueReusableCellWithIdentifier:kCellIdentifier];
        Model *model = [self.fetchedResultsController objectAtIndexPath:indexPath];
        cell.tag = indexPath.row;
        [cell updateContentWithModel:model atIndexPath:indexPath];
        return cell;
}


- (void)updateContentWithModel:(Model *)model atIndexPath:(NSIndexPath *)indexPath
{
self.model = model;
[self setTextFromModel];
[self setImageFromModelAtIndexPath:indexPath];
}

- (void) setTextFromModel
{
self.title.text = self.model.header;
self.status.attributedText = [self boldString:self.model.status fontSize:self.status.font.pointSize color:[UIColor redColor]];
}

+(NSMutableAttributedString *)boldString:(NSString *)stringToBold fontSize:(CGFloat)fontSize color:(UIColor *)color
{
NSMutableAttributedString *boldString = [[NSMutableAttributedString alloc] initWithString:stringToBold];
[boldString setAttributes:@{NSForegroundColorAttributeName: color,
                            NSFontAttributeName:[UIFont boldSystemFontOfSize:fontSize]} range:NSMakeRange(0, boldString.length)];
return boldString;
}

Has anyone experience something like this before?

Answer 1

I have same problem due to UIAppearance. Set font\\color to nil before setting UILabel attributed text works for me.

Answer 2

I had a similar problem. I was trying to set attributed text (specifically font color) on a UILabel in my custom UITableViewCell and it was only partially reflecting the change, even if I did it in tableView:willDisplayCell:forRowAtIndexPath: (which I believe is the recommended place to do such updates).

It turned out that I needed to set the property on the main thread :

dispatch_async(dispatch_get_main_queue(), ^{
            [label setAttributedText:text];
        });

While I was already aware that all UI updates are to be done on the main thread, I was frankly surprised that willDisplayCell wasn't already called from the main thread, at least not in this case.

Answer 3

For me, the issue was that I was using custom subclass of UILabel, which was using UIAppearance for colors. When I switched to using regular UILabel the issue got resolved, but now I had to handle font color myself, instead of using UIAppearance