使可重用的UITableViewCell出队时，属性字符串字体格式会更改

Question

I have a UITableView that contains cells where I'm setting an NSAttributedString on a UILabel . The NSAttributedString has sections that are HTML bolded using <b>%@</b> by <b>%@</b> , and they render correctly on the first pass however when the cell is called again the entire string is in bold, rather than the individual sections.

I prepare the NSAttributedString with this function.

- (NSAttributedString *)attributedStringForString:(NSString *)string forFont:(UIFont *)font {
    NSLog(@"Get attributed string");
    string = [string stringByAppendingString:[NSString stringWithFormat:@"<style>body{font-family: '%@'; font-size:%fpx; color:#000000;}</style>",
                                              font.fontName,
                                              font.pointSize]];

    NSDictionary *options = @{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType};
    NSAttributedString *labelString = [[NSAttributedString alloc] initWithData:[string dataUsingEncoding:NSUTF8StringEncoding] options:options documentAttributes:nil error:nil];

    return labelString;
}

Answer 1

A couple ways to solve this:

1)

In your custom UITableViewCell, you should implement prepareForReuse :

-(void)prepareForReuse{
    [super prepareForReuse];

    // Then Reset here back to default values that you want.
    self.label.font = [UIFont systemFontOfSize: 12.0f];
}

2)

After you dequeue your table view cell in your cellForRowAtIndexPath method, you can do something like:

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
if(cell)
{
    cell.textLabel.font = [UIFont systemFontOfSize: 12.0f];
}