将Firebase数据从一个视图控制器传递到局部视图控制器

Question

我希望将Firebase数据库中的数据加载到主视图控制器中的表视图中，然后将该数据传递给作为详细视图控制器的第二个视图控制器，使其更具描述性。我被卡住了，因为当我点击单元格时，它不会跳转到我的另一个视图控制器，我不知道如何传递数据。我只想在第一个视图控制器上输入名称，然后在详细视图控制器上填充其他数据。

我的主视图控制器——

import UIKit
import Foundation
import Firebase
import FirebaseDatabase
class ViewController: UIViewController {

var table = [FacStaffInfo]()
var ref: DatabaseReference!

@IBOutlet weak var Tableview: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
ref = Database.database().reference().child("users")

ref.observe(DataEventType.value, with: {(snapshot) in
if snapshot.childrenCount > 0 {
self.table.removeAll()

for user in snapshot.children.allObjects as! [DataSnapshot] {

let object = user.value as? [String: AnyObject]
let title = object?["title"]
let name = object?["name"]
let email = object?["email"]
let phone = object?["phone"]
let office = object?["office"]
let bio = object?["bio"]
let user = FacStaffInfo(title: title as! String, name: name as! String, email: email as! String, phone: phone as! Int, office: office as! String, bio: bio as! String)
self.table.append(user)

self.Tableview.reloadData()



}
}
})

}
}
extension ViewController: UITableViewDataSource, UITableViewDelegate {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return table.count
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "userCell") as! TableViewCell

let user: FacStaffInfo

user = table[indexPath.row]
cell.titleLabel?.text = user.title
cell.nameLabel?.text = user.name
cell.emailLabel?.text = user.email
cell.phoneLabel?.text = String(user.phone)
cell.officeLabel?.text = user.office
cell.bioLabel?.text = user.bio

return cell
}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "showDetail", sender: self)
}
}


override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "showDetail" {
if let indexPath = Tableview.indexPathForSelectedRow {
let destinationController = segue.destination as! InfoViewController
destinationController.FacStaffData = [table[indexPath.row]]
}
}
}
}

我的详细视图控制器——

import UIKit
import Firebase
import FirebaseDatabase
class InfoViewController: UIViewController {

var FacStaffData = [FacStaffInfo]()

@IBOutlet weak var titleLabel: UILabel!
@IBOutlet weak var nameLabel: UILabel!
@IBOutlet weak var emailLabel: UILabel!
@IBOutlet weak var phoneLabel: UILabel!
@IBOutlet weak var officeLabel: UILabel!
@IBOutlet weak var bioLabel: UILabel!

//var title = ""
var name = ""
var email = ""
var phone = ""
var office = ""
var bio = ""

override func viewDidLoad() {
super.viewDidLoad()
titleLabel.text = title
nameLabel.text = name
emailLabel.text = email
phoneLabel.text = phone
officeLabel.text = office
bioLabel.text = bio

print(titleLabel)

}
}

我的信息类——

import Foundation
import Firebase
import FirebaseDatabase

class FacStaffInfo {

var title: String
var name: String
var email: String
var phone: Int
var office: String
var bio: String

init(title: String, name: String, email: String, phone: Int, office: String, bio: String) {
self.title = title;
self.name = name;
self.email = email;
self.phone = phone;
self.office = office;
self.bio = bio

}
}

和我的表视图单元格

import UIKit
import Firebase
import FirebaseDatabase
class TableViewCell: UITableViewCell {

@IBOutlet weak var titleLabel: UILabel!
@IBOutlet weak var nameLabel: UILabel!
@IBOutlet weak var emailLabel: UILabel!
@IBOutlet weak var phoneLabel: UILabel!
@IBOutlet weak var officeLabel: UILabel!
@IBOutlet weak var bioLabel: UILabel!

override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}

Answer 1

看起来didSelectRowAt只是在不调用任何东西的情况下再次实现了didSeleceRowAt。

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "showDetail", sender: self)
}
}

重试：

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "showDetail", sender: self)
}

更新以进行跟进：

InfoViewController使用默认值。当您准备segue时，您将信息放入FacStaffData中。这应该奏效。

class InfoViewController: UIViewController {

var FacStaffData = [FacStaffInfo]()

@IBOutlet weak var titleLabel: UILabel!
@IBOutlet weak var nameLabel: UILabel!
@IBOutlet weak var emailLabel: UILabel!
@IBOutlet weak var phoneLabel: UILabel!
@IBOutlet weak var officeLabel: UILabel!
@IBOutlet weak var bioLabel: UILabel!

override func viewDidLoad() {
super.viewDidLoad()
titleLabel.text = FacStaffData.title
nameLabel.text = FacStaffData.name
emailLabel.text = FacStaffData.email
phoneLabel.text = FacStaffData.phone
officeLabel.text = FacStaffData.office
bioLabel.text = FacStaffData.bio

print(titleLabel)

}
}