因此，我有一个包含UISegmentedControl的视图控制器，一个带有2个单元格的表视图，在这两个表视图单元格中，我每个单元格都有一个集合视图，这些视图应根据所选的段索引显示不同的数据
点击分段控件时，我想在每个集合视图中显示不同的数据。当我点击细分控件时，什么也没有发生，索引保持在0。我在多行上运行了一个断点，我的代表回到了零。
我如何正确设置代表？我以为表格视图单元格的self.shareVC?.styleDelegate = self中的self.shareVC?.trendDelegate = self和awakeFromNib()会设置它，但它仍然返回nil。
此外，如果我手动将selectedSegmentIndex设置为1，则会显示男性数据是否应有，反之亦然。
主VC
class SharePhotoViewController: UIViewController, UITextViewDelegate, UITableViewDelegate, UITableViewDataSource {
@IBOutlet weak var segmentedControl: UISegmentedControl?
var selectedSegmentIndex = 0
//
var trendDelegate: TrendsTabelCellDelegate?
var styleDelegate: StylesTableCellDelegate?
// MARK: - TableView
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
2
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
switch indexPath.row {
case 0:
let trendingCell = tableView.dequeueReusableCell(withIdentifier: "currentTrends", for: indexPath) as! TrendsTableCell
return trendingCell
case 1:
let styleCell = tableView.dequeueReusableCell(withIdentifier: "styles", for: indexPath) as! StyleTableCell
return styleCell
default:
return UITableViewCell()
}
}
//display data based on segmentIndex
@IBAction func segmentTapped(_ sender: Any) {
print(selectedSegmentIndex)
trendFunc()
styleFunc()
}
@objc func trendFunc() {
trendDelegate?.handleSegControlTapped(for: self)
}
@objc func styleFunc() {
styleDelegate?.handleSegmentControlTapped(for: self)
}
}
TableView单元格（包含集合视图）
class TrendsTableCell: UITableViewCell, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, TrendsTabelCellDelegate {
var selectedSegmentIndex = 0
var shareVC: SharePhotoViewController?
// MARK: - Delegate Func
func handleSegControlTapped(for view: SharePhotoViewController) {
selectedSegmentIndex = view.segmentedControl!.selectedSegmentIndex
collectionView.reloadData()
}
// MARK: - Collection View
func numberOfSections(in collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
switch selectedSegmentIndex {
case 0: return femaleTrends.count
case 1: return maleTrends.count
default: print("opps, cant load data")
return 0
}
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "trendsCell", for: indexPath) as! TrendsCollectionCell
switch selectedSegmentIndex {
case 0: cell.trendLabel.text = femaleTrends[indexPath.row].name
cell.trendIV.image = femaleTrends[indexPath.row].image
case 1: cell.trendLabel.text = maleTrends[indexPath.row].name
cell.trendIV.image = maleTrends[indexPath.row].image
default: break
}
cell.layer.cornerRadius = 9.0
cell.layer.borderWidth = 0.1
cell.layer.borderColor = UIColor.lightGray.cgColor
return cell
}
class StyleTableCell: UITableViewCell, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout, StylesTableCellDelegate {
var shareVC: SharePhotoViewController?
var selectedSegmentIndex = 0
func handleSegmentControlTapped(for view: SharePhotoViewController) {
selectedSegmentIndex = view.segmentedControl!.selectedSegmentIndex
collectionView.reloadData()
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
switch selectedSegmentIndex {
case 0: return femaleStyles.count
case 1: return maleStyles.count
default: print("opps, cant load data")
return 0
}
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "styles", for: indexPath) as! StyleCollectionCell
switch selectedSegmentIndex {
case 0: cell.styleLabel.text = femaleStyles[indexPath.row].name
cell.styleIV.image = femaleStyles[indexPath.row].image
case 1: cell.styleLabel.text = maleStyles[indexPath.row].name
cell.styleIV.image = maleStyles[indexPath.row].image
default: break
}
cell.layer.cornerRadius = 9.0
cell.layer.borderWidth = 0.1
cell.layer.borderColor = UIColor.lightGray.cgColor
return cell
}
```
TableViewCell
class DashboardTableViewCell: UITableViewCell {
func setCollectionViewDataSourceDelegate<D: UICollectionViewDataSource & UICollectionViewDelegate>(_ dataSourceDelegate: D, forRow row: Int) {
collectionView.delegate = dataSourceDelegate
collectionView.dataSource = dataSourceDelegate
collectionView.tag = row
collectionView.setContentOffset(collectionView.contentOffset, animated: false)
collectionView.reloadData()
}
var collectionViewContentOffsett: CGFloat {
set { collectionView.contentOffset.x = newValue }
get { return collectionView.contentOffset.x }
}
}
UIViewController
final class JobsListViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(forIndexPath: indexPath) as DashboardTableViewCell
cell.setCollectionViewDataSourceDelegate(self, forRow: indexPath.row)
cell.collectionViewContentOffsett = storedOffsets[indexPath.row] ?? 0
cell.selectionStyle = .none
return cell
}
}
extension JobsListViewController: UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width: 75, height: 75)
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return jobList[collectionView.tag].connectedBusinesses?.count ?? 0
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell: BusinessCollectionViewCell = collectionView.dequeueReusableCell(for: indexPath)
let data = jobList[collectionView.tag].connectedBusinesses?[indexPath.item]
cell.configure(data)
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
DDLogInfo("Collection view at row \(collectionView.tag) selected index path \(indexPath)")
}
}