我是火力四射的新手。我正在创建一个“聚集玩家的出勤”应用程序。我无法从Firebase实时数据库中检索播放器的名称。
我能够创建一个新的训练日（NewAttendanceTableViewController）来收集玩家的出勤（AttendanceViewController），这意味着每个新的训练日都会有一组玩家的出勤。我无法在AttendanceViewController中的每个单元格上显示单个玩家的姓名。我可以将其保存到Firebase数据库中。
class AttendanceViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var attendanceListDetails : Attendance!
@IBOutlet weak var attendingTableView: UITableView!
@IBOutlet weak var attendingCellLabel: UILabel!
@IBOutlet weak var plyNameTextField: UITextField!
@IBOutlet weak var venueInformation: UILabel!
@IBOutlet weak var timeInformation: UILabel!
var attendingArray : [Attending] = [Attending]()
override func viewDidLoad() {
super.viewDidLoad()
self.title = attendanceListDetails.title
self.timeInformation.text = attendanceListDetails.time
self.venueInformation.text = attendanceListDetails.venue
retrieveAttendingAtt()
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.attendingArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "attPlayCellLabel", for: indexPath)
let attendingList = self.attendingArray[indexPath.row]
cell.textLabel?.text = attendingList.attending
return cell
}
@IBAction func attendingButtonTapped(_ sender: Any) {
if title == nil {
return
}
if plyNameTextField.text != nil
{
let attendingDB = Database.database().reference().child("Attending")
let attendingDictionary = ["AttendingPlayer": plyNameTextField.text!, "User": Auth.auth().currentUser?.email, "Title": title]
attendingDB.childByAutoId().setValue(attendingDictionary) {
(error, reference) in
if error != nil {
print(error!)
} else {
print("Attending Player saved successfully")
}
}
self.plyNameTextField.text = ""
}
}
func retrieveAttendingAtt() {
let attendingDB = Database.database().reference().child("Attending")
attendingDB.observe(.childAdded) { (snapshot) in
let snapshotValue = snapshot.value as! Dictionary<String,String>
let attending = snapshotValue["AttendingPlayer"]!
let attendingPlayer = Attending()
attendingPlayer.attending = attending
self.attendingArray.append(attendingPlayer)
self.attendingTableView.reloadData()
}
}
}
我希望该名称出现在AttendanceViewController的单元格中。