Question

现在，我正在实施onesignal通知，当用户单击通知时，我想打开特定的Viewcontroller。

这是我在AppDelegate的代码

let storyBoard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let detailBrand = storyBoard.instantiateViewController(withIdentifier: "PagerOverviewControlerID") as! PagerOverviewControler
detailBrand.getValue = value
navigationController?.pushViewController(detailBrand, animated: true)

如果我将其放在任何ViewController类中，但在AppDelegate内则不能，则此代码可以正常工作。

请帮助！！！

Answer 1

好吧，首先您必须了解Appdelgate不是UIViewController，

因此，您不能使用pushViewController(detailBrand, animated: true)，因为您不能完全使用UIVewController，但是可以启动UINavigatetionController并将其设置为根，然后从它推。

并且您的代码应类似于

let rootViewController = self.window!.rootViewController as! UINavigationController
let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let profileViewController = mainStoryboard.instantiateViewController(withIdentifier: "PagerOverviewControlerID") as! PagerOverviewControler
rootViewController.pushViewController(profileViewController, animated: true)

还要记住，您应该将其放在didFinishLaunchWithOption方法内。

func application(_ application: UIApplication, 
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool

从AppDelegate调用navigationController

1 个答案: