如何在推送通知时导航到视图控制器

Question

我想在收到推送通知后导航到某个视图控制器。导航后，导航堆栈应该像用户手动进入视图一样工作。

故事板：http://www.xpos.nl/xpos/images/common/storyboard.png

在AppDelegate.swift我已经有：

func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {

    println("didReceiveRemoteNotification")

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

    let destinationViewController = storyboard.instantiateViewControllerWithIdentifier("MessageViewController") as MessageViewController

    let navigationController = self.window?.destinationViewController;

    navigationController?.pushViewController(destinationViewController, animated: false, completion: nil)

}

但是我收到一个错误，指出 destinationViewController 不是 window 的一部分，或者如果我更正它（在 Whosebug 上尝试其他答案），什么也没有发生。

Answer 1

destinationViewController 不是 window 的一部分，因为它还没有被添加，只是被初始化了。基于 navigationViewController 是您的 rootViewController 的假设，像这样推送到您的 destinationViewController：

func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {

    println("didReceiveRemoteNotification")

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

    let destinationViewController = storyboard.instantiateViewControllerWithIdentifier("MessageViewController") as MessageViewController

    let navigationController = self.window?.rootViewController as! UINavigationController

    navigationController?.pushViewController(destinationViewController, animated: false, completion: nil)

}

另外：要从 "Bestellen" 推送到 "MessageViewController" 然后弹出到 "Berichten"，您还需要将所有其他 viewController 推送到这两者之间。没有内置函数或算法可以做到这一点。

Answer 2

试试这个

    func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {

    println("didReceiveRemoteNotification")

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

    let destinationViewController = storyboard.instantiateViewControllerWithIdentifier("MessageViewController") as MessageViewController

    self.window?.rootViewController?.presentViewController(destinationViewController, animated: True, completion:nil)

    }

如何在推送通知时导航到视图控制器

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