没有故事板的 Segue [英] Segue without StoryBoard

问题描述

我正在尝试制作一个在每个视图上都有一个主页按钮的应用程序，但我正在寻找一种在单击此按钮时导航到主屏幕的方法，而不需要为每个屏幕上的物理"链接故事板到主屏幕.

I'm trying to do an app that will have a Home Button on each View, but I'm looking for a way to navigate to Home Screen on click this button, without make a "physical" link for each screen on StoryBoard to home screen.

我正在尝试使用此代码:

I'm try to use this code:

@IBAction func btnGoInicio(_ sender: Any) {
    let page = MainVC()
    present(page, animated: true, completion: nil)
}

但是这个黑屏崩溃，有人知道我该怎么做吗?提前致谢！

But this crash on a black screen, some one know how I can do it? Thanks in advance!

推荐答案

你必须从 storyboard 实例化一个 viewController，这样:

You have to instantiate a viewController from storyboard, this way:

@IBAction func btnGoInicio(_ sender: Any) {

     let storyboard = UIStoryboard(name: "Main", bundle: nil) // If you have other storyboard instead of Main, use it

     if let page=self.storyboard?.instantiateViewControllerWithIdentifier("YOU_IDENTIFIER") as! MainVC{ 
//You MUST SET THE VIEW CONTROLLER IDENTIFIER "YOU_IDENTIFIER" FROM INSPECTOR INTO STORYBOARD
        self.present(page, animated: true, completion: nil)
    }

}

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