UITolViewView里面的UICollectionView

Question

我試圖在TableViewCell中設置一個CollectionView。 我已經閱讀了一堆完整的堆棧問題，tuts和視頻，到目前為止，我有一些看似正確的方法，但我的集合視圖仍未加載到我的表格視圖單元格中。

碼：

import UIKit

class TheaterCell: UITableViewCell {

@IBOutlet var theaterName: UILabel!

@IBOutlet var theaterLocation: UILabel!

@IBOutlet var showtimesCollection: UICollectionView!

override func awakeFromNib() {
    super.awakeFromNib()

    showtimesCollection.delegate = self
    showtimesCollection.dataSource = self
    showtimesCollection.reloadData()

}

override func setSelected(_ selected: Bool, animated: Bool) {
    super.setSelected(selected, animated: animated)

    // Configure the view for the selected state
}

}

extension TheaterCell: UICollectionViewDataSource, UICollectionViewDelegate {

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

    return 10

}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = showtimesCollection.dequeueReusableCell(withReuseIdentifier: "timeCell", for: indexPath) as! TimeCell

    cell.time.text = "1:00"

    return cell

}

}

Tableview從ViewController加載並顯示其單元格和元素，但集合視圖未在單元格中加載。

Answer 1

這對我有用，我認為問題來自你注冊你的細胞的方式

class YourCell: UITableViewCell, UICollectionViewDelegate, UICollectionViewDataSource {

@IBOutlet weak var collectionView: UICollectionView!

override func awakeFromNib() {
    super.awakeFromNib()
    registerCell()
    self.collectionView.delegate = self
    self.collectionView.dataSource = self
}
func registerCell() {
    collectionView.register(TimeCell.self, forCellWithReuseIdentifier: "cell")
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return 10
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! TimeCell
    cell.time.text = "1:00"
    return cell
}

override func setSelected(_ selected: Bool, animated: Bool) {
    super.setSelected(selected, animated: animated)

    // Configure the view for the selected state
}

Answer 2

我做什么，我使用storyboard並通過拖入類來設置Storyboard中的委托和數據源。

a）將TableView的委托和數據源設置為ViewController

b）將CollectionView的委托和數據源設置為TableViewCell（TheaterCell）

ViewController代碼：

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}
}

extension ViewController:UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
  return  1
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let theaterCell:TheaterCell = tableView.dequeueReusableCell(withIdentifier: "TheaterCell", for: indexPath) as! TheaterCell
    theaterCell.reloadCollectionView()
    return theaterCell
}

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
    return 200
}
}

TheaterCell代碼：

class TheaterCell: UITableViewCell {
@IBOutlet var showtimesCollection: UICollectionView!
override func awakeFromNib() {
    super.awakeFromNib()
}

func reloadCollectionView() -> Void {
    self.showtimesCollection.reloadData()
}
}

extension TheaterCell: UICollectionViewDataSource, UICollectionViewDelegate {

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return 10        
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = showtimesCollection.dequeueReusableCell(withReuseIdentifier: "timeCell", for: indexPath) as! TimeCell
    cell.time.text = "1:00"
    return cell
}
}

TimeCell代碼：

class TimeCell: UICollectionViewCell {
    @IBOutlet var time: UILabel!
}

這是輸出：

注意：如果您不使用故事板並且您僅從代碼中獲取COLLECTIONVIEW或TABLE，那么您必須將您的CELL注冊為：A）TheaterCell必須注冊到ViewController類B）TimeCell必須注冊到TheaterCell類