Clash Royale CLAN TAG#URR8PPP

How to implement scrolling of the tableView to the top hiding the search bar in its tableheaderView?

I have already gone through some similar questions and tried implementing their solutions. However they seem to have some problem in especially iPhone X. I am using deployment target as 9.3.

To do so, I wrote this code but iPhone X puts tableView higher hiding more than half of the first row along with the search bar too.

override func viewDidAppear(_ animated: Bool)
self.tableView.contentOffset = CGPoint(x: 0.0,y: 0.0)




also the below snippet appears to have no effect at all:

self.tableView.scrollToRow(at: IndexPath( row: 0, section: 0), at: UITableViewScrollPosition.top, animated: false)


Adding full code if you want to have a look at it.

import UIKit

class CountryTableViewController: UITableViewController, UISearchResultsUpdating

let countriesArray = ["Afghanistan", "Albania", "Algeria", "Afghanistan", "Albania", "Algeria", "Afghanistan", "Albania", "Algeria", "Afghanistan", "Albania", "Algeria", "Afghanistan", "Albania", "Algeria", "Afghanistan", "Albania", "Algeria", "Afghanistan", "Albania", "Algeria"]
let countrycodes = ["+93", "+355", "+213", "+93", "+355", "+213", "+93", "+355", "+213", "+93", "+355", "+213", "+93", "+355", "+213", "+93", "+355", "+213", "+93", "+355", "+213"]
var filteredArray = [String]()
var searchController = UISearchController()
var resultsController = UITableViewController()

override func viewDidLoad()
super.viewDidLoad()

// Do any additional setup after loading the view.


let cancelButton: UIBarButtonItem = UIBarButtonItem(title: "Cancel", style: .plain, target: self, action: #selector(cancel))
self.navigationItem.leftBarButtonItem = cancelButton

let searchButton: UIBarButtonItem = UIBarButtonItem(title: "", style: .plain, target: self, action: #selector(searchButtonAction))
searchButton.image = UIImage(named: "search")
self.navigationItem.rightBarButtonItem = searchButton

searchController = UISearchController(searchResultsController: resultsController)
tableView.tableHeaderView = searchController.searchBar

searchController.searchResultsUpdater = self

resultsController.tableView.delegate = self
resultsController.tableView.dataSource = self

automaticallyAdjustsScrollViewInsets = false



func updateSearchResults(for searchController: UISearchController)

filteredArray = countriesArray.filter( (countriesArray:String) -> Bool in
if countriesArray.contains(searchController.searchBar.text!)

return true

else

return false;


)
resultsController.tableView.reloadData()
automaticallyAdjustsScrollViewInsets = false


@objc func cancel()
self.dismiss(animated: true, completion: nil)


@objc func searchButtonAction()
self.dismiss(animated: true, completion: nil)
self.searchController.isActive = true
self.searchController.searchBar.text = ""


override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
if tableView == resultsController.tableView

return filteredArray.count

else

return countriesArray.count




override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell

let cell = UITableViewCell()

if tableView == resultsController.tableView

cell.textLabel?.text = filteredArray[indexPath.row]
cell.detailTextLabel?.text = countrycodes[indexPath.row]
cell.imageView?.image = UIImage (named: "Flag0")

else

cell.textLabel?.text = countriesArray[indexPath.row]
cell.detailTextLabel?.text = countrycodes[indexPath.row]
cell.imageView?.image = UIImage (named: "Flag0")



return cell


override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)

print(indexPath.row, indexPath.section)




override func didReceiveMemoryWarning()
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.

override func viewDidAppear(_ animated: Bool)

self.tableView.scrollToRow(at: IndexPath( row: 0, section: 0), at: UITableViewScrollPosition.bottom, animated: false)
// self.tableView.contentOffset = CGPoint(x: 0.0,y: 0.0)
// self.tableView.setContentOffset(.zero, animated: true)
//self.tableView.contentInset = UIEdgeInsetsMake(-64, 0, 0, 0)
self.automaticallyAdjustsScrollViewInsets = false;


override func viewWillAppear(_ animated: Bool)

// self.tableView.scrollToRow(at: IndexPath( row: 0, section: 0), at: UITableViewScrollPosition.top, animated: false)
// self.tableView.contentOffset = CGPoint(x: 0.0,y: 44.0)
// self.tableView.setContentOffset(.zero, animated: true)









1 Answer
1

you should add definesPresentationContext = true in your viewDidLoad().

definesPresentationContext = true

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