我在CollectionView单元格中有一个TableViewController单元格tableView包含3个部分每个部分是不同的类别。如何在每个部分传递不同的数据。喜欢Netflix应用
在UICollectionViewController文件中
import UIKit
import Alamofire
class HomeViewController: UITableViewController, MovieDataDelegate {
let tableViewHeaderIdentifier = "FeaturedTableHeader"
var homePresenter : HomePresenter!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
let headerNib = UINib(nibName: "FeaturedUITableViewHeaderView", bundle: nil)
tableView.register(headerNib, forHeaderFooterViewReuseIdentifier: tableViewHeaderIdentifier)
homePresenter = HomePresenter()
homePresenter.delegate = self
homePresenter.fetchData()
homePresenter.fetchImageData()
}
func arrayOfMoviesNames(names: [String]) {
//print(homePresenter.homeData.moviesNamesArray)
tableView.reloadData()
}
func arrayOfPosters(path: [String]) {
//print(homePresenter.homeData.posterPathsArray)
}
//MARK: - Home UI table
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "featuredCell", for: indexPath) as! FeaturedTableViewCell
cell.homeCollectionView.dataSource = self
return cell
}
override func numberOfSections(in tableView: UITableView) -> Int {
return 3
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = tableView.dequeueReusableHeaderFooterView(withIdentifier: tableViewHeaderIdentifier) as! FeaturedUITableViewHeaderView
switch section {
case 0:
headerView.isHidden = true
case 1:
headerView.catagoryLabel.text = "Popular Movies"
case 2:
headerView.catagoryLabel.text = "Celebs"
default:
headerView.catagoryLabel.text = "" as String
}
return headerView
}
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
if section == 0 {
return 0
}
return 35
}
override func tableView(_ tableView: UITableView, estimatedHeightForFooterInSection section: Int) -> CGFloat {
return 12
}
override func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
guard let tableViewCell = cell as? FeaturedTableViewCell else { return }
tableViewCell.setCollectionViewDataSourceDelegate(self, forRow: indexPath.row)
}
}
//MARK: - collectionView
extension HomeViewController : UICollectionViewDataSource, UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return homePresenter.homeData.moviesNamesArray.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "homeCollectionCell", for: indexPath) as! HomeCollectionViewCell
cell.posterImage.image = UIImage(named: "Aladdin")
cell.movieName.text = "coco"
return cell
}
}
在UITableViewCell文件中
import UIKit
class FeaturedTableViewCell: UITableViewCell {
@IBOutlet weak var homeCollectionView: UICollectionView!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
let collectionNib = UINib(nibName: "HomeCollectionViewCell", bundle: nil)
homeCollectionView.register(collectionNib, forCellWithReuseIdentifier: "homeCollectionCell")
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
extension FeaturedTableViewCell {
func setCollectionViewDataSourceDelegate<D: UICollectionViewDataSource & UICollectionViewDelegate>(_ dataSourceDelegate: D, forRow row: Int) {
homeCollectionView.delegate = dataSourceDelegate
homeCollectionView.dataSource = dataSourceDelegate
homeCollectionView.tag = row
homeCollectionView.reloadData()
}
}
screenshot of app
我想为tabelview的每个部分显示不同的图像和文本
最佳答案
创建一个structMovie并在视图控制器中创建一个元组数组。在tuple中添加一个类别标题和一组相关电影。在表视图中，数据源方法使用主数组；在集合视图中，数据源方法使用来自相应元组的movies数组。将当前元组/节索引设置为collectionView标记。并在集合视图数据源方法中获取适当的movies数组。
//家庭视图控制器
class HomeViewController: UITableViewController {
struct Movie {
var name: String
var image: UIImage?
//other details
}
var movieDetails:[(title:String, movies:[Movie])] = []
override func viewDidLoad() {
super.viewDidLoad()
tableView.register(FeaturedCell.self, forCellReuseIdentifier: "FeaturedCell")
movieDetails = [(title: "MoviesDB", movies: [Movie(name: "a", image: UIImage(named: "a")),
Movie(name: "b", image: UIImage(named: "b")),
Movie(name: "c", image: UIImage(named: "c"))]),
(title: "Popular Movies", movies: [Movie(name: "d", image: UIImage(named: "d")),
Movie(name: "e", image: UIImage(named: "e")),
Movie(name: "f", image: UIImage(named: "f"))]),
(title: "Celebs", movies: [Movie(name: "g", image: UIImage(named: "g")),
Movie(name: "h", image: UIImage(named: "h")),
Movie(name: "i", image: UIImage(named: "i"))])]
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return movieDetails.count
}
override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return movieDetails[section].title
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "FeaturedCell") as? FeaturedCell ?? FeaturedCell(style: .default, reuseIdentifier: "FeaturedCell")
cell.collectionView.tag = indexPath.section
cell.collectionView.delegate = self
cell.collectionView.dataSource = self
return cell
}
}
extension HomeViewController: UICollectionViewDataSource, UICollectionViewDelegate {
func numberOfSections(in collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return movieDetails[collectionView.tag].movies.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "HomeCell", for: indexPath) as? HomeCell ?? HomeCell()
let movie = movieDetails[collectionView.tag].movies[indexPath.item]
cell.posterImage.image = movie.image
cell.movieName.text = movie.name
return cell
}
}
//功能单元
class FeaturedCell: UITableViewCell {
var collectionView = UICollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
commonInit()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
commonInit()
}
func commonInit() {
if let layout = collectionView.collectionViewLayout as? UICollectionViewFlowLayout {
layout.scrollDirection = .horizontal
}
collectionView.register(HomeCell.self, forCellWithReuseIdentifier: "HomeCell")
collectionView.translatesAutoresizingMaskIntoConstraints = false
addSubview(collectionView)
collectionView.topAnchor.constraint(equalTo: topAnchor).isActive = true
collectionView.bottomAnchor.constraint(equalTo: bottomAnchor).isActive = true
collectionView.leadingAnchor.constraint(equalTo: leadingAnchor).isActive = true
collectionView.trailingAnchor.constraint(equalTo: trailingAnchor).isActive = true
}
}
//家庭电话
class HomeCell: UICollectionViewCell {
let posterImage = UIImageView()
let movieName = UILabel()
//...
}