在单击表格行时，SecondViewController上显示错误的信息
我正在尝试第一次build立一个tableView，而不是简单的分组，而是与一个单元格被点击时显示的信息不正确的问题。
首先我创build了一个数组，这个数组用来给我的组织标题。 接下来，我有一个数组，其中包含4个更多的数组，每个数组除了最后一个只有1的8个对象以外，这4个数组是我的组。
当应用程序运行时，组表将完全按照它应该显示，但是当你点击一个特定的行时，它可能会显示应该是不同的行的信息。 我正在从数组中删除一些对象，只是为了使代码更短，您可以在这里看到。
符文：
import UIKit struct Rune { var runeName: String var runeImage: UIImage var runeDescription: String } 视图控制器：
import UIKit class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate { @IBOutlet weak var tableView: UITableView! var runeTitle = [["Freyr/Freya's Aett"], ["Heimdall's Aett"], ["Tyr's Aett"], ["Additional Runes"]] let runes = [[Rune(runeName: "Fehu", runeImage: UIImage(named: ("Fehu.png"))!, runeDescription: "(F: Domestic cattle, wealth.) Possessions won or earned, earned income, luck. Abundance, financial strength in the present or near future. Sign of hope and plenty, success and happiness. Social success. Energy, foresight, fertility, creation/destruction (becoming).\n\n Fehu Reversed or Merkstave: Loss of personal property, esteem, or something that you put in effort to keep. It indicates some sort of failure. Greed, burnout, atrophy, discord. Cowardice, stupidity, dullness, poverty, slavery, bondage."), Rune(runeName: "Wunjo", runeImage: UIImage(named: ("Wunjo.png"))!, runeDescription: "(W or V: Joy.) Joy, comfort, pleasure. Fellowship, harmony, prosperity. Ecstasy, glory, spiritual reward, but also the possibility of going \"over the top\". If restrained, the meaning is general success and recognition of worth.\n\n Wunjo Reversed or Merkstave: Stultification, sorrow, strife, alienation. Delirium, intoxication, possession by higher forces, impractical enthusiasm. Raging frenzy, berzerker.")], [Rune(runeName: "Hagalaz", runeImage: UIImage(named: ("Hagalaz.png"))!, runeDescription: "(H: Hail.) Wrath of nature, destructive, uncontrolled forces, especially the weather, or within the unconscious. Tempering, testing, trial. Controlled crisis, leading to completion, inner harmony. Hagalaz Merkstave (Hagalaz cannot be reversed, but may lie in opposition): Natural disaster, catastrophe. Stagnation, loss of power. Pain, loss, suffering, hardship, sickness, crisis."), Rune(runeName: "Sowilo", runeImage: UIImage(named: ("Sowilo.png"))!, runeDescription: "(S: The sun.) Success, goals achieved, honor. The life-force, health. A time when power will be available to you for positive changes in your life, victory, health, and success. Contact between the higher self and the unconscious. Wholeness, power, elemental force, sword of flame, cleansing fire. Sowilo Merkstave (Sowilo cannot be reversed, but may lie in opposition): False goals, bad counsel, false success, gullibility, loss of goals. Destruction, retribution, justice, casting down of vanity. Wrath of god.")], [Rune(runeName: "Tiwaz", runeImage: UIImage(named: ("Tiwaz.png"))!, runeDescription: "(T: Tyr, the sky god.) Honor, justice, leadership and authority. Analysis, rationality. Knowing where one's true strengths lie. Willingness to self-sacrifice. Victory and success in any competition or in legal matters.\n\n Tiwaz Reversed or Merkstave: One's energy and creative flow are blocked. Mental paralysis, over-analysis, over-sacrifice, injustice, imbalance. Strife, war, conflict, failure in competition. Dwindling passion, difficulties in communication, and possibly separation."), Rune(runeName: "Othala", runeImage: UIImage(named: ("Othala.png"))!, runeDescription: "(O: Ancestral property.) Inherited property or possessions, a house, a home. What is truly important to one. Group order, group prosperity. Land of birth, spiritual heritage, experience and fundamental values. Aid in spiritual and physical journeys. Source of safety, increase and abundance.\n\n Othala Reversed or Merkstave: Lack of customary order, totalitarianism, slavery, poverty, homelessness. Bad karma, prejudice, clannishness, provincialism. What a man is bound to.")], [Rune(runeName: "Blank Rune", runeImage: UIImage(named: ("Blank.png"))!, runeDescription: "There is no historical support for a \"Blank Rune\" in runic divination. It was invented in the 1980's. It should not be used in a rune casting. If you bought a rune set with a blank piece, save it in case you lose another rune piece, but don't use it in rune casting.")]] func numberOfSections(in tableView: UITableView) -> Int { // #warning Incomplete implementation, return the number of sections return runes.count } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { // #warning Incomplete implementation, return the number of rows return runes[section].count } func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { // Configure the cell... let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as UITableViewCell; let item = runes[indexPath.section][indexPath.row] cell.imageView?.image = item.runeImage cell.textLabel?.text = item.runeName cell.accessoryType = UITableViewCellAccessoryType.disclosureIndicator return cell } func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? { return String(describing: runeTitle[section][0]) } var clickedIndex = 0 var section = 0 func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { self.clickedIndex = indexPath.row self.section = indexPath.section } override func prepare(for segue: UIStoryboardSegue, sender: Any?) { if segue.identifier == "segue" { let runeArray = runes[section][clickedIndex] let destinationVC = segue.destination as! SecondViewController destinationVC.selectedRune = runeArray } } override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. } }
SecondViewController：
import UIKit class SecondViewController: UIViewController { var selectedRune: Rune! @IBOutlet weak var runeNameLabel: UILabel! @IBOutlet weak var runeImage: UIImageView! @IBOutlet weak var runeDescriptionLabel: UILabel! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. runeNameLabel.text = selectedRune.runeName runeImage.image = selectedRune.runeImage runeDescriptionLabel.text = selectedRune.runeDescription } }
你有这个
func numberOfSections(in tableView: UITableView) -> Int { // #warning Incomplete implementation, return the number of sections return runes.count } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { // #warning Incomplete implementation, return the number of rows return runes[section].count }
因此，而不是得到indexPath.row，你也需要得到当前选定的部分。 例如，
self.clickedIndex = indexPath.row self.section = indexPath.section
然后你selectrunArray会
let runeArray = runes[section][clickedIndex]
UPDATE
你的问题是prepare:forSegue在tableview:didSelectRowAt被调用之前调用prepare:forSegue 。 你应该使用其中任何一个，而不是两个。 以下片段显示了如何使用navigationtroller.pushViewController导航到其他视图控制器。
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { section = indexPath.section clickedIndex = indexPath.row let runeArray = runes[section][clickedIndex] let storyboard = UIStoryboard(name: "Main", bundle: nil) guard let destinationVC = storyboard.instantiateViewController(withIdentifier: "SecondVC") as? SecondViewController else { return} destinationVC.selectedRune = runeArray navigationController?.pushViewController(destinationVC, animated: true) }
记得把你的Storyboard ID设置为SecondVC或任何你想要的。
为indexpath.section创build一个variables，在didSelectRow中初始化它
override func prepare(for segue: UIStoryboardSegue, sender: Any?) { if segue.identifier == "segue" { let runeArray = runes[ let item = runes[indexPath.section][indexPath.row] ]// variable runeArray is the child array from runes let destinationVC = segue.destination as! SecondViewController destinationVC.selectedRune = runeArray[indexpath.section ]// Now choose an actual Rune object from the array by index. }
最好的方法是：1.在表格视图单元格（在YourtableViewCell.h和YourtableViewCell.m）中创build一个项目对象。 2.然后在单元格中分配该项目（在cellForRowAtIndex方法中）3.然后在
didSelectRowAt
- 现在，您可以通过所选单元格获取该项目。