ios - 查找哪个单元格被单击并执行 Segue

Question

我使用 Google Places API 填充了带有餐厅名称的 UITableView。现在，我正在尝试对不同的 View 执行 segue，同时知道使用 IndexPath 单击了哪个单元格。我试过使用 didSelectAtIndexRowPath 函数，但它无法识别点击/点击。它应该将数字打印到控制台。我做错了什么？

import UIKit

class ViewController: UIViewController, UITableViewDataSource {

    var myIndex = 0
    @IBOutlet var restuarantsTable: UITableView!
    var restaurantsList = [NSDictionary]()
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        restuarantsTable.dataSource = self

        let url = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=26.2034071,-98.23001239999996&radius=500&type=restaurant&keyword=tacos&key=AIzaSyBRQZV4SOpcJ-icCe9BuZlI48MzONwH5Dw"
        downloadRestaurants(urlString: url) { (array) -> () in
            self.restaurantsList = array as! [NSDictionary]
            // print(self.restaurantsList.count)
            self.restuarantsTable.reloadData()
        }

    }

    public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return restaurantsList.count
    }


    @available(iOS 2.0, *)
    public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let RCell = tableView.dequeueReusableCell(withIdentifier: "RCell", for: indexPath)
        //   let imgURL = NSURL(string: imgURLArray[indexPath.row])
        //   let imageView = RCell.viewWithTag(350) as! UIImageView

        RCell.textLabel!.text = restaurantsList[indexPath.row]["name"] as? String
        // RCell.imageView?.image = restaurantsList[indexPath.row]["photos"] as? UIImage

        return RCell
    }

    private func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: IndexPath) {
        self.performSegue(withIdentifier: "detailSegue", sender: indexPath)

        print(restaurantsList[indexPath.row])
    }

}

Answer 1

您必须像对 UITableViewDataSource 那样遵守 UITableViewDelegate，didSelectRowAtIndexPath 是一个 UITableViewDelegate 方法

添加这些行

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

并且在 viewDidLoad 中

restuarantsTable.delegate = self

我想你也必须在 Storyboard 中设置委托(delegate)

转到此选项卡并按住 ctrl 并拖动到 View Controller 以将其设置为委托(delegate)