从 SceneDelegate.swift 打开特定的 UITabBarController / ViewController

Question

我有一个 Today Extension，它有一个 UITableView。

当用户点击 UITableView 中的一项时，它会使用 URL Scheme 打开包含的应用程序并传递一些数据，以便包含的应用程序可以打开特定的视图用户点击的项目。

问题是，从 SceneDelegate.swift 我可以处理 URL 方案，但似乎我无法进行特定的 UITabBarController 显示并打开所点击项目的详细视图由用户。

请注意，我并不是要创建它们；它们已经从情节提要中创建并开始工作。我只是希望它自动 'Navigate' 就像用户点击了 tableview 项目一样。

下面的代码是我试过的：

func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {
    // This part, I'm handling URL Scheme which is working fine
    let url = URLContexts.first!.url
    let urlComponents = URLComponents(url: url, resolvingAgainstBaseURL: false)
    let items = urlComponents?.queryItems
    var deepLinkArray: [URLQueryItem] = []
    deepLinkArray = items!


    // From here I will use datas I got from URL
    if let statusValue = deepLinkArray[0].value, let indexPathSection = deepLinkArray[1].value, let indexPathRow = deepLinkArray[2].value {
        todoStatusValueURL = Int(statusValue)!
        indexPathSectionURL = Int(indexPathSection)!
        indexPathRowURL = Int(indexPathRow)!



        // Here I want to show one of UITabBarController
        let storyboard = UIStoryboard(name: "Main", bundle: nil)
        let snoozedVC = storyboard.instantiateViewController(withIdentifier: "SnoozedViewController") as! SnoozedViewController
        snoozedVC.self.tabBarController?.selectedIndex = todoStatusValueURL! // And this is not showing what I want


        // Additionally I want to show ItemDetailViewController as if user tapped the item in the tableview, and below code is also not working
        let detailVC = storyboard.instantiateViewController(withIdentifier: "DetailVC") as! DetailVC
        snoozedVC.navigationController?.pushViewController(detailVC, animated: true)

}

Answer 1

首先检查特定 snoozedVC 的 snoozedVC 和 TabBarController 是否存在。它会让你知道你的代码有什么问题......然后根据它的结果继续检查你的代码的哪一部分不工作

if let snoozedVC = storyboard.instantiateViewController(withIdentifier: "SnoozedViewController") as? SnoozedViewController {
    if let tabBarController = snoozedVC.tabBarController {

            tabBarController.selectedIndex = todoStatusValueURL!

            }  else {
                 print("tab controller not found")
             }
           } else {
                 print("SnoozedViewController not found")
             }
          }

从 SceneDelegate.swift 打开特定的 UITabBarController / ViewController

Open specific UITabBarController / ViewController from SceneDelegate.swift

uitabbarcontroller

uiviewcontroller

swift

today-extension

uiscenedelegate