ios - 轻按通知时显示View Controller

我试图在用户点击本地通知时显示详细视图控制器。
到目前为止，我知道：

//AppDelegate.swift

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    let userInfo = response.notification.request.content.userInfo
    if let id = userInfo["item_id"] as? Int {
        if let item = ItemsRepository.shared.getItem(id: id) {
            let vc = DetailTableViewController()
            vc.item = item
            let tabController = self.window?.rootViewController as! UITabBarController
            let navigationController = tabController.selectedViewController as! UINavigationController
            navigationController.pushViewController(vc, animated: true)
        }
    }
    completionHandler()
}

此代码生成异常，原因如下：
libc++abi.dylib: terminating with uncaught exception of type NSException
版本2
`

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    let userInfo = response.notification.request.content.userInfo
    if let id = userInfo["item_id"] as? Int {
        if let item = ItemsRepository.shared.getItem(id: id) {
            let vc = DetailTableViewController()
            vc.item = item
            let storyboard = UIStoryboard(name: "Main", bundle: nil)
            let vc = storyboard.instantiateViewController(withIdentifier: "DetailView") as! DetailTableViewController
            vc.item = item
            window?.rootViewController = vc
            self.window?.makeKeyAndVisible()

        }
    }
    completionHandler()
}

它有点工作，但标签栏和导航控制器不再可见！
我在这里做错什么了？

最佳答案

而不是let vc = DetailTableViewController()
试试这个

    let storyboard = UIStoryboard(name: "MyStoryboardName", bundle: nil)
    let vc = storyboard.instantiateViewController(withIdentifier: "someViewController")

告诉我这是否有效