ios - 如何在 iOS 中的 prepareForSegue 之前执行按钮按下操作？

Question

我正在创建一个 iOS 应用程序，我想在运行 prepareForSegue 方法之前在按下按钮时执行分配操作。

我使用主 Storyboard创建了所有控件。

一些按钮的执行顺序是按钮按下 Action -> prepareForSegue

但对于某些按钮来说是prepareForSegue-> 按钮按下 Action

如何更改第二组按钮的顺序？

这是我使用的代码:

import UIKit

class SummaryViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    var button_prsd = "none"

    @IBAction func people_insights(sender: AnyObject) {
        button_prsd = "people_insights"
    }

    @IBAction func industry_research(sender: AnyObject) {
        button_prsd = "industry_research"
    }

    @IBAction func holidays_events(sender: AnyObject) {
        button_prsd = "holidays_events"
    }

    @IBAction func monthly_spotlights(sender: AnyObject) {
        button_prsd = "monthly_spotlights"
    }

    @IBAction func blog(sender: AnyObject) {
        button_prsd = "blog"
    }


    @IBAction func about_us(sender: AnyObject) {
        button_prsd = "about_us"
        print("button press about us executed")
    }


    @IBAction func settings(sender: AnyObject) {
        button_prsd="settings"
        print("button press settings executed")

    }


    @IBAction func quiz(sender: AnyObject) {
        button_prsd="quiz"
        print("button press quiz executed")
    }

    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.

        let next_view = segue.destinationViewController

        if(next_view is DetailViewController)
        {
            let det_view = next_view as! DetailViewController
            det_view.link = button_prsd
            print("segue executed")
        } else if(next_view is DetailTableViewController)
        {
            let det_view = next_view as! DetailTableViewController

            print("segue executed")
        }
    }
}

Answer 1

我弄清楚了问题，当以这种方式给出然后代码时，执行只是按字母顺序，所有其他方法都在 prepareForSegue 之前执行，因为这些方法按字母顺序排在上面

当我将测验和设置方法重命名为 a_quiz 和 a_settings 时，它起作用了