Styjun

I'm written in snapkit for UI render. I have not use storyboard or nib files.

I want to position top UIView on top of UITableView using SnapKit.

How to write it?

Below is my written code

swift
import UIKit
import SnapKit

class ViewController: UIViewController 


 var data: [String] = []
 var tableView = UITableView()
 var subView = UIView()
 var label = UILabel()


 override func viewDidLoad() 
 super.viewDidLoad()
 self.tableView.delegate = self
 self.tableView.dataSource = self
 // Do any additional setup after loading the view, typically from a nib.
 label.text = "Hello?"
 self.view.addSubview(self.tableView)
 self.tableView.addSubview(self.subView)
 self.subView.addSubview(self.label)
 self.subView.backgroundColor = .gray

 self.tableView.snp.makeConstraints make in
 make.edges.equalToSuperview()

 
 self.subView.snp.makeConstraints make in
 make.top.width.equalTo(self.tableView)
 make.centerX.equalTo(self.tableView)
 make.height.equalTo(200)
 
 self.label.snp.makeConstraints make in
 make.centerX.centerY.equalTo(self.subView)
 
 for i in 0...100 
 data.append("(i)")
 
 self.tableView.reloadData()


 



 override func didReceiveMemoryWarning() 
 super.didReceiveMemoryWarning()
 


extension ViewController: UITableViewDataSource 
 func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int 
 return self.data.count
 

 func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell 
 let element = self.data[indexPath.row]
 let cell = tableView.dequeueReusableCell(withIdentifier: "comicListCell") ?? UITableViewCell(style: .normal, reuseIdentifier: "comicListCell")
 cell.textLabel?.text = element
 return cell
 



extension ViewController: UITableViewDelegate 
 func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) 
 print(self.data[indexPath.row])
 

My code :

I want it!:

UIView must placed into UITableView children !!

Sorry my bad english..

Thanks for reading

You could easily add the tableView method:

func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? 

 if section == 0 
 return self.subView
 else 
 return UIView.init(frame: CGRect.zero)
 

You want subview which is sticky header of tableview. Change this line self.tableView.addSubview(self.subView) to
tableView.tableHeaderView = subView.