ios - 如何在 Swift 中从模态弹出窗口调用 Controller ？

Question

我有三个 Controller ，我需要这个导航:

|第一届VC | -> |弹出窗口VC | -> |第二次VC |

第一个使用弹出框显示模态视图，然后使用协议(protocol)从模态视图中显示第二个 Controller 。

协议(protocol)调用该方法，然后，它应该调用第二个 Controller ，但事实并非如此!我尝试执行 segue 并调用 Controller ，但没有任何反应，事实上，它重新加载第一个 Controller 而不是调用第二个 Controller 。请帮忙。我认为我在委托(delegate)方面一定有错误，但我不知道是什么。(英语很差，我知道)

一件重要的事情是，firstViewcontroller 是从 tabbarcontoller 中的另一个 Controller 调用的。

提前致谢。

这是代码:

PopoOverController:

import UIKit
protocol basketDelegate {
func didSelectValue()
}
class PopoverViewController: UITableViewController {
var delegate: basketDelegate!
let options = ["Filters", "Basket"]
    override func viewDidLoad() {
    super.viewDidLoad()
    self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "reuseIdentifier")
    let rdc = storyboard!.instantiateViewControllerWithIdentifier("FirstViewController") as! FirstViewController
    self.delegate = rdc
}

// MARK: - Table view data source
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // #warning Incomplete implementation, return the number of rows
    return options.count
}

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("reuseIdentifier", forIndexPath: indexPath)
    cell.textLabel?.textAlignment = .Center
    cell.textLabel?.textColor = colorWithHexString("#1C7393")
    cell.textLabel?.text = options[indexPath.row]
    return cell
}

override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath!) {
    delegate?.didSelectValue()
}
}

第一个 Controller

import UIKit

class FirstViewController: AEAccordionTableViewController, 
UIPopoverPresentationControllerDelegate, UISearchBarDelegate,basketDelegate {

override func viewDidLoad() {
    super.viewDidLoad()

   var Filters = PopoverViewController()
    Filters.delegate = self

}

// MARK: - Popup filter call
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "popoverSegue" {
        let popoverViewController = segue.destinationViewController as UIViewController
        popoverViewController.modalPresentationStyle = UIModalPresentationStyle.Popover
        popoverViewController.popoverPresentationController!.delegate = self
    }
}

func adaptivePresentationStyleForPresentationController(controller: UIPresentationController) -> UIModalPresentationStyle {
    return UIModalPresentationStyle.None
}


func didSelectValue() {

    //Option 1--Failed!
    let storyboard : UIStoryboard = UIStoryboard(name: "Main", bundle: nil);
    let SecondViewControllerObject : UIViewController = storyboard.instantiateViewControllerWithIdentifier("SecondViewController") as! SecondViewController;
    self.presentViewController(SecondViewControllerObject, animated: true, completion: nil);

    //Option 2--Failed
    self.performSegueWithIdentifier("secondSegue", sender: self)

    //Option 3--Failed
    let storyboard : UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
    let SecondViewControllerObject : UIViewController = storyboard.instantiateViewControllerWithIdentifier("SecondViewController") as! SecondViewController;
    let navigationController = UINavigationController(rootViewController: SecondViewControllerObject)
    self.presentViewController(navigationController, animated: true, completion: nil)

    //Option 4--Failed
    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    let vc = storyboard.instantiateViewControllerWithIdentifier("SecondViewController") as! SecondViewController
    FirstViewController()!.presentViewController(vc, animated: true, completion: nil)

    //Option 5--Failed
    self.navigationController?.presentViewController(vc, animated: false, completion: nil)

 }
}

第二个 Controller

import UIKit

class SecondViewController: AEAccordionTableViewController {

@IBOutlet weak var dismissButton: UIButton!
override func viewDidLoad() {
    super.viewDidLoad()

}
@IBAction func dismissTap(sender: UIButton) {
    self.dismissViewControllerAnimated(true, completion: nil)
}
}

Answer 1

您的第一个 View Controller 应该是 PopoverViewControllerDelegate，而不是basketDelegate。