title: tableHeaderView interactive part disappear
body: <p><a href="https://i.stack.imgur.com/krucd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/krucd.png" alt="enter image description here"></a></p>
  
  <p>This is my tableHeaderView code：    </p>
  
  <pre><code>private lazy var headerView:ZczzHeaderView = {
          let obj = NSBundle.mainBundle().loadNibNamed("ZczzHeaderView", owner: nil, options: nil).first as? ZczzHeaderView
          //        obj?.delegete = self
          obj?.frame = CGRectMake(0,0,self.view.frame.width,80)
          return obj!
      }()
  
      override func viewDidLoad() {
  
          super.viewDidLoad()
  
          tableView.tableHeaderView = headerView
  
  
      }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/Lv7gj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Lv7gj.png" alt="enter image description here"></a></p>
  
  <p>My tableHeaderView is divided into two parts. The interaction effect of the second part disappears.</p>
  
  <p>How do I fix it?</p>