以编程方式从UIBarButtonItem中截取 [英] Programmatically segue from UIBarButtonItem

问题描述

我有三个视图控制器，在导航栏的左右两侧各有两个按钮，如下图所示。

I have three view controllers, all with two buttons each on the right and left sides of the navigation bar, as seen below on one of them.

我正在以编程方式创建这些按钮，而不是在每个相应的视图控制器（VC）中编写代码，我决定编写一个创建按钮的助手类。

I'm creating these buttons programatically, and instead of writing the code in each respective view controller (VC) I decided to write a Helper class that creates the buttons.

// Note: I am using FontAwesome as a third-party library.

class Helper: NSObject {

    static func loadNavBarItems(vc: UIViewController) {
        let profileButton = UIBarButtonItem()
        let addButton = UIBarButtonItem()

        let attributes = [NSFontAttributeName: UIFont.fontAwesome(ofSize: 20)] as [String: Any]

        profileButton.setTitleTextAttributes(attributes, for: .normal)
        addButton.setTitleTextAttributes(attributes, for: .normal)

        profileButton.title = String.fontAwesomeIcon(name: .userCircle)
        addButton.title = String.fontAwesomeIcon(name: .plus)

        vc.navigationItem.leftBarButtonItem = profileButton
        vc.navigationItem.rightBarButtonItem = addButton
    }

    func segueToProfile(vc: UIViewController) { // I need help here. }

}

然后我调用 Helper。 loadNavBarItems（vc：self）来自每个VC的 viewDidLoad（）。

I then call Helper.loadNavBarItems(vc: self) from each VC's viewDidLoad().

我是什么我现在要做的就是在按下其中一个按钮时触发一个segue（让我们假设它是个人资料按钮）。所以，我需要定义 profile.action 。所以，在Helper类中，我必须编写一个函数 segueToProfile ，它接受一个视图控制器（ vc ）并运行 performSegueWithIdentifier 。

What I'm trying to do now is to trigger a segue when one of the buttons is pressed (let's assume it's the profile button). So, I need to define profile.action. So, in the Helper class, I have to write a function segueToProfile that takes a view contoller (vc) and runs performSegueWithIdentifier.

问题是，我不完全了解如何通过选择器传递不同类型的参数，我可能对谷歌不好，但我找不到任何足够接近我的问题，以便了解如何实现这一目标。

The problem is, I'm not fully understanding how to pass in different types of parameters through selectors, and I may be bad at Googling but I cannot find any questions that are close enough to mine for me to understand how to achieve this.

非常感谢您提前帮助。

作为参考，这是我的结构故事板。

编辑：如故事板结构截图中所示，我已经从三个中创建了一个segue查看控制器到目标视图控制器。

As shown in the storyboard structure screenshot, I've already created a segue from each of the three view controllers to the destination view controller.

推荐答案

创建barButtonItem：

To create barButtonItem:

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