title: Get indexPath from custom Tableview section header
body: <p>I have created a custom View and added it to the tableView section header.</p>
  
  <pre><code> func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -&gt; UIView? {
  
          if section == 2 {
  
              if (headerView == nil) {
                  headerView = CustomHeaderSection(frame: CGRectMake(0,0,self.view.bounds.width,38))
              }
              headerView!.delegate = self
  
              if isExpandableCell {
  
                  headerView!.arrowImage.transform = CGAffineTransformIdentity
  
              }else {
  
                  headerView!.arrowImage.transform = CGAffineTransformMakeRotation(CGFloat(M_PI))
  
              }
              return headerView
  
          }
  
          return nil
      }
  </code></pre>
  
  <p>I have a button on the custom view that I have added on the tableview section. Now how will I get the indexPath when I click on it?</p>