Autolayout : UITableViewCell : size

gistfile1.m

+ (CGFloat)heightOfCellWithTableView:(UITableView *)tableView obj:(id)obj
{
    static MMCell *sizingCell = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        sizingCell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
    });
    sizingCell.obj = obj;
    CGSize size = [sizingCell.contentView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize];
    return size.height;
}