swift - 我是否正确使用 Storyboard？

Question

我使用的 Storyboard对吗？

我有几个带有 View Controller 的 Storyboard。

---

当我需要在它们之间导航时，我会执行以下操作:

每次使用它们时，我都会创建 Storyboard的新实例 let storyboard = ...。这是一个糟糕的方法吗？或者我应该在 view did load 中声明它吗？

func detailsRequestedForMessage(message: message) {

        let storyboard = UIStoryboard(name: "Additional", bundle: nil)
        let viewController = storyboard.instantiateViewController(withIdentifier: "MessageDetailsViewController") as! MessageDetailsViewController

        viewController.messageId = message.id
        self.navigationController?.pushViewController(viewController, animated: true)
    }

func viewAllMessage() {

        let storyboard = UIStoryboard(name: "Additional", bundle: nil)
        let viewController = storyboard.instantiateViewController(withIdentifier: "AllMessageViewController") as! AllMessageViewController

        self.navigationController?.pushViewController(viewController, animated: true)
    }

func viewOptions() {

        let storyboard = UIStoryboard(name: "Options", bundle: nil)
        let viewController = storyboard.instantiateViewController(withIdentifier: "OptionsViewController") as! OptionsViewController

        self.present(viewController, animated: true)
    }

Answer 1

存储 Storyboard引用不需要任何费用，但需要时间从名称解析 Storyboard引用。所以我会说你应该把这样的行放在

self.storyboardAdditional = UIStoryboard(name: "Additional", bundle: nil)

在viewDidLoad中，将引用存储在属性中，然后通过属性引用 Storyboard。