So übergeben Sie Daten von UICollectionViewCell (in UITableviewCell) zu einem anderen UIViewcontroller Swift3

Question

Ich habe eine UICollectionView, die in UITableViewCell ist. Ich habe 7 Knopf in UICollectionViewCell. Wenn ich Button1 drücke, sollten die Daten an einen anderen Viewcontroller übergeben werden, tut es aber nicht.

// TableviewCell

import UIKit 


class backgroundViewCell: UITableViewCell { 

var dayName : String! 
var audioFileURL : String! 
var tittle : String? 

// guided collectionView 
@IBOutlet var collectionView: UICollectionView! 


let data = ["1","2","3","4","5","6","7"] 

let images = ["circleblank","circleblank","circleblank","circleblank","circleblank","circleblank","circleblank"] 

@IBOutlet var Labeltittle: UILabel! 
@IBOutlet var LabelDetail: UILabel! 
@IBOutlet var iconview: UIImageView! 

extension backgroundViewCell : UICollectionViewDataSource, UICollectionViewDelegate { 

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 
    return 7 
} 

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { 
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell1", for: indexPath) as! CollectionViewCell 

    cell.Label.text = data[indexPath.row] 
    cell.ImageView.image = UIImage(named: images[indexPath.row]) 

    let bgColorView = UIView() 
    bgColorView.backgroundColor = UIColor.clear 

    var imageView : UIImageView 
    imageView = UIImageView(frame:CGRect(x :4.1,y : 3.9, width:  cell.ImageView.frame.size.width, height : cell.ImageView.frame.size.height)); 
    imageView.image = UIImage(named : "blankoval") 


    bgColorView.addSubview(imageView) 


    cell.selectedBackgroundView = bgColorView 

    return cell 
} 

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) { 
    print("Collection view at row \(collectionView.tag) selected index path \(indexPath.row)") 
    switch (indexPath.row) { 
    case 0: 

     dayName = "Day 1" 

     self.audioFileURL = musicUrlFile.Day1 
     break 
    case 1: 
    self.audioFileURL = musicUrlFile.Day2 
     dayName = "Day 2" 

     break 
    case 2: 
    self.audioFileURL = musicUrlFile.Day3 
     dayName = "Day 3" 

     break 
    case 3: 
    self.audioFileURL = musicUrlFile.Day4 
     dayName = "Day 4" 

     break 
    case 4: 

     self.audioFileURL = musicUrlFile.Day5 
     dayName = "Day 5" 

     break 
    case 5: 
     self.audioFileURL = musicUrlFile.Day6 
     dayName = "Day 6" 

     break 
    default: 
     self.audioFileURL = musicUrlFile.Day7 
     dayName = "Day 7" 
     break 

    } 

} 

} 
} 

// Tableviewcontroller

import UIKit 

class PlayerGuidedTableViewController: UITableViewController { 


var audioFileURL : String! 
var dayName : String! 




// MARK: - Table view data source 

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 1 
} 

override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat { 

    return 600 
} 


override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> backgroundViewCell { 
    let cell = tableView.dequeueReusableCell(withIdentifier: "guidedPlayerCell") as! backgroundViewCell 

    cell.selectionStyle = .none 
    cell.playPauseButton.addTarget(self, action: #selector(PlayerGuidedTableViewController.playPauseButtonAction), for: .touchUpInside) 


    return cell 
} 



override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 
    if segue.identifier == "MainPlayer" { 
     if let collectionCell: backgroundViewCell = sender as? backgroundViewCell { 
      if let collectionView: UICollectionView = collectionCell.superview as? UICollectionView { 
       if let playerVC = segue.destination as? playerGuidedViewController { 


        playerVC.Day = dayName 
        playerVC.UrlAudio = audioFileURL 
       } 
      } 
     } 
    } 
} 

// override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 
//  if segue.identifier == "guidedMainPlayer" { 
//    
//   let playerVC = segue.destination as! playerGuidedViewController 

//   playerVC.Day = dayName 
//   playerVC.UrlAudio = audioFileURL 
//    
//    
//  } 
// } 
} 



} 

Answer 1

Hier werde ich zeigen, wie die Daten zu übergeben von der tablecell zum viewcontroller: Grundsätzlich haben Sie Ihre passieren viewcontroller Instanz an die tablecell und dann können Sie auf alle Eigenschaften und Methoden von viewcontroller Instanz in der tablecell

zugreifen

import UIKit 


class backgroundViewCell: UITableViewCell { 
var vcInstance: PlayerGuidedTableViewController? 
var dayName : String! 
var audioFileURL : String! 
var tittle : String? 

// guided collectionView 
@IBOutlet var collectionView: UICollectionView! 


let data = ["1","2","3","4","5","6","7"] 

let images = ["circleblank","circleblank","circleblank","circleblank","circleblank","circleblank","circleblank"] 

@IBOutlet var Labeltittle: UILabel! 
@IBOutlet var LabelDetail: UILabel! 
@IBOutlet var iconview: UIImageView! 

extension backgroundViewCell : UICollectionViewDataSource, UICollectionViewDelegate { 

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 
    return 7 
} 

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { 
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell1", for: indexPath) as! CollectionViewCell 

    cell.Label.text = data[indexPath.row] 
    cell.ImageView.image = UIImage(named: images[indexPath.row]) 

    let bgColorView = UIView() 
    bgColorView.backgroundColor = UIColor.clear 

    var imageView : UIImageView 
    imageView = UIImageView(frame:CGRect(x :4.1,y : 3.9, width:  cell.ImageView.frame.size.width, height : cell.ImageView.frame.size.height)); 
    imageView.image = UIImage(named : "blankoval") 


    bgColorView.addSubview(imageView) 


    cell.selectedBackgroundView = bgColorView 

    return cell 
} 

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) { 
    print("Collection view at row \(collectionView.tag) selected index path \(indexPath.row)") 
    switch (indexPath.row) { 
    case 0: 

     dayName = "Day 1" 

     self.audioFileURL = musicUrlFile.Day1 
     break 
    case 1: 
    self.audioFileURL = musicUrlFile.Day2 
     dayName = "Day 2" 

     break 
    case 2: 
    self.audioFileURL = musicUrlFile.Day3 
     dayName = "Day 3" 

     break 
    case 3: 
    self.audioFileURL = musicUrlFile.Day4 
     dayName = "Day 4" 

     break 
    case 4: 

     self.audioFileURL = musicUrlFile.Day5 
     dayName = "Day 5" 

     break 
    case 5: 
     self.audioFileURL = musicUrlFile.Day6 
     dayName = "Day 6" 

     break 
    default: 
     self.audioFileURL = musicUrlFile.Day7 
     dayName = "Day 7" 
     break 

    } 

} 
vcInstance.dayName = dayName 
} 
} 

Sie können die Daten von Zelle zu dem Viewcontroller übergeben

import UIKit 

class PlayerGuidedTableViewController: UITableViewController { 


var audioFileURL : String! 
var dayName : String! 




// MARK: - Table view data source 

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 1 
} 

override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat { 

    return 600 
} 


override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> backgroundViewCell { 
    let cell = tableView.dequeueReusableCell(withIdentifier: "guidedPlayerCell") as! backgroundViewCell 
    cell.vcInstance = self 
    cell.selectionStyle = .none 
    cell.playPauseButton.addTarget(self, action: #selector(PlayerGuidedTableViewController.playPauseButtonAction), for: .touchUpInside) 


    return cell 
} 



override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 
    if segue.identifier == "MainPlayer" { 
     if let collectionCell: backgroundViewCell = sender as? backgroundViewCell { 
      if let collectionView: UICollectionView = collectionCell.superview as? UICollectionView { 
       if let playerVC = segue.destination as? playerGuidedViewController { 


        playerVC.Day = dayName 
        playerVC.UrlAudio = audioFileURL 
       } 
      } 
     } 
    } 
} 

// override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 
//  if segue.identifier == "guidedMainPlayer" { 
//    
//   let playerVC = segue.destination as! playerGuidedViewController 

//   playerVC.Day = dayName 
//   playerVC.UrlAudio = audioFileURL 
//    
//    
//  } 
// } 
} 



} 

Answer 2

Sie audioFileURL und dayName Variablen innerhalb PlayerGuidedTableViewController Klasse nicht benötigen.

class PlayerGuidedTableViewController: UITableViewController { 

    var audioFileURL : String! //delete this 
    var dayName : String!  //delete this 
    ... 
    ... 
} 

Ersetzen Sie Ihre prepare(for:sender:) Methode mit diesem:

override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 
    if segue.identifier == "MainPlayer" { 
     if let backgroundViewCell = sender as? backgroundViewCell { 
      if let playerVC = segue.destination as? playerGuidedViewController { 
       playerVC.Day = backgroundViewCell.dayName 
       playerVC.UrlAudio = backgroundViewCell.audioFileURL 
      } 
     } 
    } 
}