单击而不是长按时调用 contextMenuConfigurationForRowAt

Question

我从本教程开始：https://kylebashour.com/posts/context-menu-guide

我以为我拥有了一切，但是当我点击该行时，没有任何反应

更新：感谢评论，我了解到长按时会调用 contextMenuConfigurationForRowAt。有没有办法在点击时调用它？我想为用户提供多种联系所列人员的选项。但是 UITableViewCell 中的按钮似乎不起作用，所以上下文菜单是我能想到的最好的，但是长按对于与此 table 视图交互并不明显。

import UIKit

class PeerSupportVC: UIViewController {

@IBOutlet weak var peerSupportTableView: UITableView!
var supportArray: NSArray = [];
fileprivate var configuration = Configuration.sharedInstance;

override func viewDidLoad() {
    super.viewDidLoad()
    self.peerSupportTableView.register(UITableViewCell.self, forCellReuseIdentifier: "Cell")
    self.peerSupportTableView.delegate = self;
    self.peerSupportTableView.dataSource = self;
    self.peerSupportTableView.rowHeight = 200.0
    getPeerSupport();
    
}



func getPeerSupport(){
    
    self.supportArray = ["One","Two","Three"]
    DispatchQueue.main.async(execute: {
        self.peerSupportTableView.reloadData()
    });
}


}




extension PeerSupportVC: UITableViewDelegate {


func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
        let item = self.supportArray[indexPath.row]

        return UIContextMenuConfiguration(identifier: nil, previewProvider: nil) { suggestedActions in

            let phoneAction = UIAction(title: "Phone Call", image: UIImage(systemName: "person.fill")) { (action) in
                DispatchQueue.main.async(execute: {
                    print("Wants to Phone Call");
                });

            }

            let textAction = UIAction(title: "Text Messsage", image: UIImage(systemName: "person.badge.plus")) { (action) in

                DispatchQueue.main.async(execute: {
                    print("Wants to Text Message");
                });
            }

            return UIMenu(title: "Contact Options", children: [phoneAction, textAction])
        }
    }


}


extension PeerSupportVC: UITableViewDataSource{



func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    print("Count of Support Array:",self.supportArray.count);
    return self.supportArray.count;
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath);
    for viewToRemove in cell.subviews {
        viewToRemove.removeFromSuperview();
    }
    let width = self.peerSupportTableView.frame.width;
    
    if let result = self.supportArray[indexPath.row] as? String{
        print(result);
        
        
    
        let NameLabel = UILabel(frame: CGRect(x: 180, y: 0, width: width-155, height: 30));
        NameLabel.textColor = .black;
        NameLabel.text = " "+(result);
        NameLabel.font = UIFont.systemFont(ofSize: 12, weight: UIFont.Weight(rawValue: 400));
        NameLabel.adjustsFontSizeToFitWidth = true;
        cell.addSubview(NameLabel);

        
        
    }


    return cell;
}


}

我把代码简化了分享，但是这个低版本还是不行。

我想要的是在所选行上弹出一个菜单，让用户可以选择如何联系他们选择的人。非常感谢任何有关显示菜单的帮助。

Answer 1

作为参考，这是您的代码，已修改为使用可重复使用的单元格：

// simple cell class, based on your code
class PeerCell: UITableViewCell {
    
    let nameLabel = UILabel()
    
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        commonInit()
    }
    required init?(coder: NSCoder) {
        super.init(coder: coder)
        commonInit()
    }
    func commonInit() {
        nameLabel.translatesAutoresizingMaskIntoConstraints = false
        nameLabel.font = .systemFont(ofSize: 12, weight: UIFont.Weight(rawValue: 400))
        contentView.addSubview(nameLabel)
        let g = contentView.layoutMarginsGuide
        NSLayoutConstraint.activate([
            nameLabel.topAnchor.constraint(equalTo: g.topAnchor),
            nameLabel.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 180.0),
            nameLabel.trailingAnchor.constraint(equalTo: g.trailingAnchor),
            nameLabel.heightAnchor.constraint(equalToConstant: 30.0),
        ])
    }
    
}

class PeerSupportVC: UIViewController {
    
    @IBOutlet var peerSupportTableView: UITableView!
    var supportArray: [String] = []
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // register our custom cell
        self.peerSupportTableView.register(PeerCell.self, forCellReuseIdentifier: "Cell")
        self.peerSupportTableView.delegate = self;
        self.peerSupportTableView.dataSource = self;
        self.peerSupportTableView.rowHeight = 200.0
        getPeerSupport();
    }
    
    func getPeerSupport(){
        self.supportArray = ["One","Two","Three"]
    }
    
}

extension PeerSupportVC: UITableViewDelegate {
    
    func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
        let item = self.supportArray[indexPath.row]
        
        return UIContextMenuConfiguration(identifier: nil, previewProvider: nil) { suggestedActions in
            let phoneAction = UIAction(title: "Phone Call", image: UIImage(systemName: "person.fill")) { (action) in
                print("Wants to Phone Call");
            }
            
            let textAction = UIAction(title: "Text Messsage", image: UIImage(systemName: "person.badge.plus")) { (action) in
                print("Wants to Text Message");
            }
            
            return UIMenu(title: "Contact Options", children: [phoneAction, textAction])
        }
    }
    
}

extension PeerSupportVC: UITableViewDataSource{
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        print("Count of Support Array:",self.supportArray.count);
        return self.supportArray.count;
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! PeerCell
        
        let result = self.supportArray[indexPath.row]
        print(result)
        cell.nameLabel.text = result
        
        return cell;
    }
    
}

不过，正如我在评论中所说，您的 contextMenuConfigurationForRowAt 正在工作 as-is -- 只需要 long-press 在手机上即可触发呼叫。

单击而不是长按时调用 contextMenuConfigurationForRowAt

Call contextMenuConfigurationForRowAt on Click instead of Long Press

uitableview

ios