将数据从 Table 视图单元格传递到 Segment 控件

Question

我正在使用 table 视图单元格来显示数据。我有一个段控制。在第一部分中，我显示了带有按钮控件的移动列表。 当用户单击复选标记按钮时，我想将那些 table 视图单元格值发送到秒控件并添加到它上面 .. 请给我一些基于下面的代码.. 这是 table 视图单元格。

import UIKit
    
    
    
    protocol CellSubclassDelegate: AnyObject {
        func buttonTapped(cell: MovieViewCell)
    }
    
    class MovieViewCell: UITableViewCell {
        
        weak var delegate:CellSubclassDelegate?
        
        static let identifier = "MovieViewCell"
        
    
        @IBOutlet weak var movieImage: UIImageView!
        @IBOutlet weak var movieTitle: UILabel!
        @IBOutlet weak var movieOverview: UILabel!
        
        @IBOutlet weak var someButton: UIButton!
        
        
       
        @IBAction func someButtonTapped(_ sender: UIButton) {
            self.delegate?.buttonTapped(cell: self)
        }
        
        
        func configureCell(title: String?, overview: String?, data: Data?) {
            
            movieTitle.text = title
            movieOverview.text = overview
            
            movieImage.image = nil
            if let imageData = data{
                movieImage.image = UIImage(data: imageData)
               //  movieImage.image = nil
            }
        }
        
    }

Table 查看行代码的单元格 ..

 func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        
        let cell = tableView.dequeueReusableCell(withIdentifier: MovieViewCell.identifier, for: indexPath) as! MovieViewCell
        
        let row = indexPath.row
        let title = presenter.getTitle(by: row)
        let overview = presenter.getOverview(by: row)
        let baseImageURL = presenter.getUrlImage(by: row)
        let data = presenter.getImageData(by: baseImageURL)
        cell.delegate = self
        cell.configureCell(title: title, overview: overview, data: data)
        
       
        
        return cell
    }

这里是委托的代码实现。

extension MovieViewController : CellSubclassDelegate{
    func buttonTapped(cell: MovieViewCell) {
        guard (self.tableView.indexPath(for: cell) != nil) else {return}
            let customViewController = storyboard?.instantiateViewController(withIdentifier: "MovieDeatilsViewController") as? MovieDeatilsViewController
        customViewController?.titlemovie = cell.movieTitle.text ?? ""
        customViewController?.imagemovie = cell.movieImage.image
        customViewController?.overview = cell.movieOverview.text ?? ""
     //   customViewController?.movieTitleHeader.text = cell.movieTitle.text ?? ""
        self.navigationController?.pushViewController(customViewController!, animated: true)
                    
                   
    }
}

是否实施了select方法..

 func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let dc = storyboard?.instantiateViewController(withIdentifier: "MovieDeatilsViewController") as! MovieDeatilsViewController
        
        let row = indexPath.row
       dc.titlemovie = presenter.getTitle(by: row) ?? ""
       dc.overview = presenter.getOverview(by: row) ?? ""
       
       let baseImageURL = presenter.getUrlImage(by: row)
       
       dc.imagemovie = UIImage(data: presenter.getImageData(by: baseImageURL)!)
       
        self.navigationController?.pushViewController(dc, animated: true)
   }
    
    
}

这是应用程序的屏幕截图。

当用户单击复选框时，我想将那些 table 查看单元格值添加到收藏夹控件中

Answer 1

我是你需要实现的例子（方法名和变量名不完全一样，只是帮助你理解原理）。在这种情况下只有一个 table 视图：

struct MoviePresenter {
    var nbRows: Int = 0
}

class MoviesVC  {
    var presenter = MoviePresenter()
    var tableViewSelect : UISegmentedControl!
    var movieTableView: UITableView!
    
    var favoriteMovies = [Int]() // the list of row of favorite movies
    
    // utility function to know if movie is favorite or not
    func isInFavorites(_ row: Int) -> Bool {
        return favoriteMovies.first(where: {[=10=] == row}) != nil
    }
    
    // Note : all table view datasource/delegate methods need to check
    // which is the current selected display
    func numberOfRowsInSection(_ section: Int) -> Int {
        if tableViewSelect.selectedSegmentIndex == 0 {
            return presenter.nbRows
        } else {
            return favoriteMovies.count
        }
    }
    
    // in cellForRow
    func cellForRow(indexPath: IndexPath) {
        if tableViewSelect.selectedSegmentIndex == 0 {
            // default display
            let cell = UITableViewCell() // you dequeue your cell here
            // init cell for presenter (by: row)
            if isInFavorites(indexPath.row) {
                // checkMark handling
            }
            
            // to handle checkmark
            cell.tag = indexPath.row
        } else {
            // favorite list
            let cell = UITableViewCell() // you dequeue your favorite cell here
            let row = favoriteMovies[indexPath.row]

            // if you want to handle checkmark
            cell.tag = row
        }
    }
    
    func checkMarkTappedInFavoriteCell(cell: UITableViewCell) {
        let row = cell.tag
        // set/unset favorite check mark when tapped
        if isInFavorites(row) {
            favoriteMovies.removeAll(where: {[=10=] == row})
        } else {
            favoriteMovies.append(row)
        }
        movieTableView.reloadRows(at: [IndexPath(row: row, section: 0)], with: .none)
    }
    
    // action to be executed when selected segment changes
    @IBAction func tableViewSelectedIndexChanged(_ sender: UISegmentedControl) {
        self.movieTableView.reloadData()
    }
}

这仅适用于您只需要一个 table 视图的情况。如果您需要 2 个 table 视图，分段控件中的更改也会使一个 table 视图可见，另一个不可见。

将数据从 Table 视图单元格传递到 Segment 控件

Passing data to Segment control from Table view Cell

ios

swift

uitableview

uisegmentedcontrol