Problème de tableView

iOS Aller plus loin
5

Je ne sais pas si je t’apporte une solution qui conviendra, mais voila ce que j’ai fait.

La fonction de base pour savoir si on a cliqué sur une ligne est celle-ci :

override func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? {
    print(indexPath)
    
    return indexPath
}

Effectivement, quand on clic sur une cellule dite “normale”, on a un resultat du type

[0,1]

Et quand on clic sur une entete de section, on a un truc similaire.
L’idée est de faire un gestionnaire de clic a la main.

Dans ta méthode qui gère la cellule d’entete tu fait comme ca :

override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
    // tap
    let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleHeaderTap))
    
    tapGestureRecognizer.delegate = self
    tapGestureRecognizer.numberOfTapsRequired = 1
    tapGestureRecognizer.numberOfTouchesRequired = 1
    
    // cell
    
    let  headerCell = tableView.dequeueReusableCell(withIdentifier: "header") as! CustomHeaderCell

    headerCell.headerLabel?.text = continents[section].name
    headerCell.addGestureRecognizer(tapGestureRecognizer)

    return headerCell
}

Et plus loin dans le code tu as ta méthode a ajouter qui va gérer le clic :

@objc func handleHeaderTap(gestureRecognizer: UIGestureRecognizer)
{
    print("Tapped")
}

Très important, ne pas oublier d’implémenter la classe UIGestureRecognizerDelegate pour le delegate

Le code final fonctionnel :

import UIKit

class Continent {
    var name: String;
    
    init(name: String) {
        self.name = name;
    }
}

class Country {
    var continent: Continent;
    var name: String;
    
    init(name: String, continent: Continent) {
        self.continent = continent;
        self.name = name;
    }
}

class TableViewController: UITableViewController, UIGestureRecognizerDelegate {
    
    var continents: Array<Continent> = []
    var countries: Array<Country> = []

    override func viewDidLoad() {
        super.viewDidLoad()
        
        continents.append(Continent(name: "Europe"))
        continents.append(Continent(name: "Asie"))
        continents.append(Continent(name: "Amérique du sud"))
        
        countries.append(Country(name: "France", continent: continents[0]))
        countries.append(Country(name: "Espagne", continent: continents[0]))
        countries.append(Country(name: "Allemagne", continent: continents[0]))
        
        countries.append(Country(name: "Japon", continent: continents[1]))
        countries.append(Country(name: "Chine", continent: continents[1]))
        countries.append(Country(name: "Inde", continent: continents[1]))
        countries.append(Country(name: "Corée", continent: continents[1]))
        
        countries.append(Country(name: "Argentine", continent: continents[2]))
        countries.append(Country(name: "Brésil", continent: continents[2]))
    }

    // MARK: - Table view data source

    override func numberOfSections(in tableView: UITableView) -> Int {
        return continents.count;
    }
    
    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return countries.filter({ (country:Country) -> Bool in
            return country.continent === continents[section]
        }).count
    }
    
    
    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
        
        cell.textLabel?.text = countries[indexPath.row].name
        
        return cell
    }
    
    override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        // tap
        let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleHeaderTap))
        
        tapGestureRecognizer.delegate = self
        tapGestureRecognizer.numberOfTapsRequired = 1
        tapGestureRecognizer.numberOfTouchesRequired = 1
        
        // cell
        
        let  headerCell = tableView.dequeueReusableCell(withIdentifier: "header") as! CustomHeaderCell

        headerCell.headerLabel?.text = continents[section].name
        headerCell.addGestureRecognizer(tapGestureRecognizer)

        return headerCell
    }

    //test 1
    override func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? {
        print(indexPath)
        
        return indexPath
    }
    
    //test 2

    @objc func handleHeaderTap(gestureRecognizer: UIGestureRecognizer)
    {
        print("Tapped")
    }
}