推送 interfaceController 时获取 WKInterfaceController 引用 [英] Get WKInterfaceController reference while pushing interfaceController

问题描述

我在 Apple watch 中有一个 Dashboard Controller，我导航到下一个 WKInterfaceController 而不使用 Segue.

I have a Dashboard Controller in Apple watch and I am navigating to next WKInterfaceController without using Segue.

pushControllerWithName("Messages_Detail",context: ["Data": messageDetailData])

现在我需要在加载数据后将数据从 仪表板 传递到 Messages_Detail.我在仪表板中没有任何参考.如何将数据传递给它?

Now I need to pass data from Dashboard to Messages_Detail later on after it has been loaded. I don't have any reference of it in Dashboard. How can I pass data to it?

推荐答案

这里你有一个在控制器之间传递数据的常规任务，一般来说它不是一个特定于 Watch 的任务.实际上，您需要将数据发回(通过向前发送数据，您已经可以了).根据当前的实现，我看到了 2 种方法来解决您的任务:

Here you have a regular task of passing data between controllers and it is not a Watch-specific task generally speaking. Actually you need to send data back (with sending data forward you're already OK). I see 2 ways to solve your task depending on the current implementation:

1. 使用 Messages_Detail 控制器作为 Dashboard 的代表.您还应该定义一些协议来描述 Messages_Detail 的哪些方法可以在委托上下文中调用.
2. 使用 NSNotificationCenter 或发布/订阅模式的任何其他实现来提供应用不同部分的通信.在这种情况下，您的 Dashboard 将发布通知，Messages_Detail 控制器将观察这些通知.

1. Use the Messages_Detail controller as a delegate of the Dashboard one. You also should define some protocol that will describe which methods of the Messages_Detail are available to call in a delegate context.
2. Use NSNotificationCenter or any other implementation of a Pub/Sub pattern to provide communication of different parts of your app. In this case your Dashboard will post notifications which the Messages_Detail controller will observe.

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