如何在向上滾動和向下滾動時顯示/隱藏UITableView標題？

Question

我已經添加HeaderView（從.xib）到UITableView，它顯示正確當我加載ViewController.But當我滾動到tableView的任何位置，當我向下滾動時顯示HeaderView，我將如何隱藏tableView標題。如果有人可以幫助我，將不勝感激。下面是我的代碼：

class ViewController: UIViewController,UITableViewDataSource,UIScrollViewDelegate { 


@IBOutlet var myTable : UITableView! 
var array = ["See All Local Deals","Food & Drink","Kids Activities","Taxi" , "Shopping" , "Local Tradesmen" , "Tattoo shop" , "Car Hire" , "Health & Fitness" , "Beauty & Spas" , "Home & Garden" , "Local Services" , "Nightlife" , "Wedding Planning" , "Holiday rentals"] 

lazy var headerView : HeaderView? = { 
    return Bundle.main.loadNibNamed("HeaderView", owner: self, options: nil)?[0] as? HeaderView 

}() 

override func viewDidLoad() { 
    super.viewDidLoad() 

    self.myTable.dataSource = self 
    self.myTable.tableHeaderView = headerView 

} 

func numberOfSections(in tableView: UITableView) -> Int { 
return 1 
} 
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 
    return array.count 
} 

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { 
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! MyCell 

    cell.lblText.text = array[indexPath.row] 
    return cell 

} 
} 

Answer 1

在storyboard->選擇您的tableview->財產督察>而變化類型去從平原到
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