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November 12, 2018 06:23
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UITableView hide empty rows example
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import UIKit | |
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate { | |
let dataSource: [String] = [Int](0..<8).map { "Cell #\($0+1)" } | |
var tableView: UITableView? | |
static let cellIdentifier = "TableViewCellIdentifier" | |
override func viewDidLoad() { | |
super.viewDidLoad() | |
let tableView = UITableView(frame: view.bounds) | |
view.addSubview(tableView) | |
let constraints = [ | |
tableView.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 0), | |
tableView.rightAnchor.constraint(equalTo: view.rightAnchor, constant: 0), | |
tableView.topAnchor.constraint(equalTo: view.topAnchor, constant: 0), | |
tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 0) | |
] | |
NSLayoutConstraint.activate(constraints) | |
tableView.register(UITableViewCell.self, forCellReuseIdentifier: ViewController.cellIdentifier) | |
tableView.dataSource = self | |
tableView.delegate = self | |
tableView.isEmptyRowsHidden = true | |
self.tableView = tableView | |
} | |
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { | |
return dataSource.count | |
} | |
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { | |
let cell = tableView.dequeueReusableCell(withIdentifier: ViewController.cellIdentifier, for: indexPath) | |
cell.textLabel?.text = dataSource[indexPath.row] | |
return cell | |
} | |
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { | |
tableView.deselectRow(at: indexPath, animated: true) | |
tableView.isEmptyRowsHidden = !tableView.isEmptyRowsHidden | |
tableView.layoutIfNeeded() | |
} | |
} | |
extension UITableView { | |
@IBInspectable | |
var isEmptyRowsHidden: Bool { | |
get { | |
return tableFooterView != nil | |
} | |
set { | |
if newValue { | |
tableFooterView = UIView(frame: .zero) | |
} else { | |
tableFooterView = nil | |
} | |
} | |
} | |
} |
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