8

我正在计算 uitableview 单元格中文本标签的高度。在看到 ios 7 弃用了 sizewithfont 之后，我实现了 sizewithattributes 但返回值比它包含的文本正确大小的标签要小得多。我也尝试了 sizetofit 方法也无济于事。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
  {
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
    NSDictionary *message =  self.messages[indexPath.row];

    UILabel *nameLabel = (UILabel *)[cell.contentView viewWithTag:1];
    UILabel *messageContent = (UILabel *)[cell.contentView viewWithTag:3];
    UIImageView *image = (UIImageView *)[cell.contentView viewWithTag:2];
    messageContent.text = [message objectForKey:@"messageContent"];
    NSString *content = [message objectForKey:@"messageContent"];
    NSLog(@"Message: %@", content);

    CGSize textSize = [content sizeWithAttributes:@{ NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-Light" size:17.0]}];
    messageContent.font = [UIFont fontWithName:@"HelveticaNue-Light" size:17.0];
    CGRect messageFrame = messageContent.frame;
    messageFrame.size = textSize;
    messageContent.frame = messageFrame;


    nameLabel.text = [message objectForKey:@"senderName"];
    NSString *senderPicture = [message objectForKey:@"senderPicture"];
    UIImage* myImage = [UIImage imageWithData:
                    [NSData dataWithContentsOfURL:
                     [NSURL URLWithString: senderPicture]]];

    image.image = myImage;
    image.layer.cornerRadius = 27.0;
    image.layer.masksToBounds = YES;

    //Configure the cell...

    return cell;
  }
4

1 回答 1

9

归因：

user/Elio.d在这里有一个很好的答案。

我在下面附上了他的答案的成绩单。如果它对您有帮助，请务必发送Elio.d对他的原始答案的支持

成绩单：

那么你可以试试这个：

NSDictionary *attributes = @{NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue" size:14.0f]};
// NSString class method: boundingRectWithSize:options:attributes:context is
// available only on ios7.0 sdk.
CGRect rect = [textToMeasure boundingRectWithSize:CGSizeMake(width, MAXFLOAT)
                                          options:NSStringDrawingUsesLineFragmentOrigin
                                       attributes:attributes
                                          context:nil];
于 2013-11-28T07:48:40.247 回答