Xcode啟動影片故事板問題

我對 swift 和 xcode 非常陌生。我最近一直在嘗試創建一個有趣的應用程式...

我想要實作的目標：（應用程式啟動標志影片，在應用程式加載后它將帶你到主頁故事板）。我最近看了 我的家庭設定（我希望它加載的內容）通知我確實更改了類：

啟動/視圖控制器代碼：

import UIKit

class ViewController: UIViewController {
    
    private lazy var imageView: UIImageView = {
        lazy var imageView = UIImageView(frame: CGRect(x: 0, y: 0,width:150,height:150))
        imageView.image = UIImage(named: "RobloxStudio")
        return imageView
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
        view.addSubview(imageView)
    }

    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        imageView.center = view.center
        DispatchQueue.main.asyncAfter(deadline: .now() 0.5, execute: {
            self.animate()
        })
    }

    private func animate(){
        UIView.animate(withDuration: 1, animations: {
            let size = self.view.frame.size.width * 2
            let diffX = size - self.view.frame.size.width
            let diffY = self.view.frame.size.height - size

            self.imageView.frame = CGRect(
                x: -(diffX/2),
                y: diffY/2,
                width: size,
                height: size
            )
        })

        UIView.animate(withDuration: 1.5, animations: {
            self.imageView.alpha = 0
        }, completion: { done in
            if done{
                DispatchQueue.main.asyncAfter(deadline: .now()   0.5, execute: {
                    let viewController = HomeViewController()
                    viewController.modalTransitionStyle = .crossDissolve
                    viewController.modalPresentationStyle = .fullScreen
                    self.present(viewController, animated: true)
                })
            }
        })


    }
}

HomeViewController 的代碼：

import UIKit

class HomeViewController: UIViewController{
    override func viewDidLoad(){
        super.viewDidLoad()
    }
}

有沒有更簡單的方法來制作啟動影片，并將其加載到我已經擁有設計的故事板上？有小費嗎？

uj5u.com熱心網友回復：

您首先需要在情節提要中添加情節提要 ID HomeViewController，按照慣例，您通常使用視圖控制器的名稱，因此您的情節提要 ID 為"HomeViewController"

因此，在以紅色突出顯示的框中，輸入文本"HomeViewController"：

完成后，您需要實體化它。您將從中更改以下代碼ViewController：

DispatchQueue.main.asyncAfter(deadline: .now()   0.5, execute: {
    let viewController = HomeViewController()
    viewController.modalTransitionStyle = .crossDissolve
    viewController.modalPresentationStyle = .fullScreen
    self.present(viewController, animated: true)
})

對此：

DispatchQueue.main.asyncAfter(deadline: .now()   0.5, execute: {
    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    let viewController = storyboard.instantiateViewController(withIdentifier: "HomeViewController") as! HomeViewController
    viewController.modalTransitionStyle = .crossDissolve
    viewController.modalPresentationStyle = .fullScreen
    self.present(viewController, animated: true)
})

在這段代碼中，我們首先找到被UIStoryboard呼叫的"Main"

let storyboard = UIStoryboard(name: "Main", bundle: nil)

然后我們尋找與identifier我們在情節提要中設定的情節提要相同的情節提要，在這種情況下"HomeViewController"

let viewController = storyboard.instantiateViewController(withIdentifier: "HomeViewController") as! HomeViewController

于是最后我們設定modalTransitionStyle和modalPresentationStyle對的viewController，我們提出之前。

viewController.modalTransitionStyle = .crossDissolve
viewController.modalPresentationStyle = .fullScreen
self.present(viewController, animated: true)

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