Objective c label.numberOflines is not working

Question

No matter I set the number of lines to 0 or to 100, it just won't change and the texts remain ... at the end. I've tried NSLineBreakByWordWrapping but it just removed the ... and do nothing.

UILabel *label = [[UILabel alloc] init];
[cell.contentView addSubview:label];
label.text = myString;
label.frame = CGRectMake(17, 42, 200, 30);
[label sizeToFit];
label.lineBreakMode = NSLineBreakByWordWrapping;
label.numberOfLines = 0;

please find answer in http://stackoverflow.com/questions/990221/multiple-lines-of-text-in-uilabel ... — Akshay Degada, Nov 14 '16 at 11:51
What do you mean by not working? _This property controls the maximum number of lines to use in order to fit the label’s text into its bounding rectangle._ — Rok Jarc, Nov 14 '16 at 12:13
You should write `label.lineBreakMode = NSLineBreakByWordWrapping; label.numberOfLines = 0;` above `[sizeToFit]` — Milan Gupta, Nov 14 '16 at 12:14

score 3 · Accepted Answer · answered Nov 14 '16 at 12:03

Use this

UILabel *label = [[UILabel alloc] init];

label.text = @"myStringsdsdvsvdsdvsdvsdndbndbnbdnbdnbdnpopopoploplklioolnhbfghrmyString";

label.numberOfLines = 0;
label.frame = CGRectMake(0, 50, 320, 568);

[self.view addSubview:label];

label.frame = CGRectMake(0, 42, [self widthForLabel:label withText:label.text], [self height:label withText:label.text]);

label.backgroundColor = [UIColor redColor];

for Dynamic width

-(CGFloat)widthForLabel:(UILabel *)label withText:(NSString *)text
{
    if (text.length > 0)
    {
        NSAttributedString *attributedText = [[NSAttributedString alloc] initWithString:text attributes:@{NSFontAttributeName:label.font}];
        CGRect rect = [attributedText boundingRectWithSize:(CGSize){label.frame.size.width, CGFLOAT_MAX}
                                                   options:NSStringDrawingUsesLineFragmentOrigin
                                                   context:nil];

        return ceil(rect.size.width);

    }

return 0;

}

for dynamic height

  -(CGFloat)height:(UILabel *)label withText:(NSString *)text
{
    if (text.length > 0)
    {
        NSAttributedString *attributedText = [[NSAttributedString alloc] initWithString:text attributes:@{NSFontAttributeName:label.font}];
        CGRect rect = [attributedText boundingRectWithSize:(CGSize){label.frame.size.width, CGFLOAT_MAX}
                                                   options:NSStringDrawingUsesLineFragmentOrigin
                                                   context:nil];

        return ceil(rect.size.height);
    }

    return 0;
}

here problem is you need to initialize label with some frame like this

    label.frame = CGRectMake(0, 50, 320, 568);

now when you have added label to your view then calculate dynamic width and height of label and again set the frame.

Hope it will work.

Your solution works like a charm for me. God bless you. Do you know how can I set a dynamic row height? self.table.estimatedRowHeight = 44.f; and self.table.rowHeight = UITableViewAutomaticDimension; are not working for me. — bubibu, Nov 14 '16 at 12:22
It's okk. if this answer is best fit for your solution then tick mark on upper so that other can also get it very easily. now let me solve your another issue of your tableView height. — Narendra Pandey, Nov 14 '16 at 12:24
there is one method where you can set height dynamically - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath. use your logic here. — Narendra Pandey, Nov 14 '16 at 12:25

Objective c label.numberOflines is not working

1 Answers1