IOS swift 将所选单元格置顶

Question

如何求助 tableViewCell 所以当我点击任何单元格时它会移动到单元格的顶部|开头

示例单元格

Java
PHP
CSS /clicked on/
HTML
SQL

预期结果

CSS
Java
PHP
HTML
SQL

Answer 1

class ViewController: UITableViewController {

    var languages = [
        "CSS",
        "Java",
        "PHP",
        "HTML",
        "SQL"
    ]

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "myCell")
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return languages.count
    }

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "myCell", for: indexPath)
        cell.textLabel?.text = languages[indexPath.row]
        return cell
    }

    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        languages.insert(languages.remove(at: indexPath.row), at: 0)
        tableView.beginUpdates()
        tableView.moveRow(at: indexPath, to: [0, 0])
        tableView.endUpdates()
    }
}

IOS swift 将所选单元格置顶

IOS swift bring selected cell to top

xcode

uitableview

swift