接收方没有带标识符的segue＆＃39; contact_segue＆＃39;

Question

我遇到一个问题，即self.performSegueWithIdentifier("contact_segue", sender: self)无效并抱怨接收方没有带标识符的segue＆＃39; contact_segue＆＃39; 即使我有标识符。我使用SWReveal框架来构建左侧滑动菜单，该菜单使用表视图（类：slidingMenuController）。单击单元格以调用MainNavigationController的函数changeView以执行更改视图。

import UIKit

class MainNavigationController: UINavigationController {

override func viewDidLoad() {
    super.viewDidLoad()


}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
override func viewDidAppear(animated: Bool){
    super.viewDidAppear(false)
    self.performSegueWithIdentifier("Home", sender: self)
}


override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
    if segue.identifier == "Contact_se" {

    }
}
func changeView(){
       self.performSegueWithIdentifier("contact_segue", sender: self)      
    }
}

由一个表格单元格中的左侧滑动菜单（class：slidingMenuController）调用的changeView：

 override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

        let selectedItemMenu = arrayOfSlider[indexPath.row]

        let mainNav = MainNavigationController()

         mainNav.changeView()
    }

Answer 1

只需在didSelectRowAtIndexPath上添加此代码self.performSegueWithIdentifier("contact_segue", sender: self)即可？我相信这里不需要MainNavigationController。