ios - 点击通知时显示 ViewController

Question

我试图在用户点击本地通知时显示详细信息 View Controller 。到目前为止，我有这个:

//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()
}

这段代码由于某种原因产生了一个异常:

libc++abi.dylib:以 NSException 类型的未捕获异常终止

• 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()
}

有点用，但标签栏和导航 Controller 不再可见!

我在这里做错了什么？

Answer 1

代替 let vc = DetailTableViewController()

试试这个

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

告诉我这是否可行