我有一个只有两个单元格的 UITableViewcontroller 设置。页脚文本显示在最后一个单元格上。
奇怪的是，我还有其他控制器具有几乎相同的设置和代码，并且页脚按预期显示。
我试过改变样式组/插图等。
任何想法表示赞赏。谢谢
import UIKit
class LanguagesTableViewController: UITableViewController {
var checked = [Bool]()
var choices = ["English","French"]
override func viewDidLoad() {
super.viewDidLoad()
tableView.allowsMultipleSelection = false
let defaults = UserDefaults.standard
checked = defaults.array(forKey: "Language") as? [Bool] ?? [true, false]
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
updateSwitchState()
tableView.reloadData()
}
// MARK: - Table view data source
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "languageChoiceCell", for: indexPath)
cell.textLabel?.text = choices[indexPath.row]
if !checked[indexPath.row] {
cell.accessoryType = .none
} else if checked[indexPath.row] {
cell.accessoryType = .checkmark
}
return cell
}
override func numberOfSections(in tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return choices.count
}
override func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
if checked[indexPath.row] {
tableView.selectRow(at: indexPath, animated: false, scrollPosition: UITableView.ScrollPosition.none)
}
}
override func tableView(_ tableView: UITableView, titleForFooterInSection section: Int) -> String? {
return Constants.languagesFooterText
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
// If we are selecting a row that is already checked we do nothing
guard !checked[indexPath.row] else { return }
// Reset all checked state.
checked = [Bool](repeating: false, count: choices.count)
// And set the current row to true.
checked[indexPath.row] = true
if let cell = tableView.cellForRow(at: indexPath) {
if cell.accessoryType == .checkmark {
cell.accessoryType = .none
checked[indexPath.row] = false
} else {
cell.accessoryType = .checkmark
checked[indexPath.row] = true
}
}
updateSwitchState()
}
// did ** DE ** Select
override func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
if let cell = tableView.cellForRow(at: indexPath) {
if cell.accessoryType == .checkmark {
cell.accessoryType = .none
checked[indexPath.row] = false
} else {
cell.accessoryType = .checkmark
checked[indexPath.row] = true
}
}
updateSwitchState()
}
func updateSwitchState() {
let defaults = UserDefaults.standard
defaults.set(checked, forKey: "Language")
}
}
