我想先说的是，我知道有这样一个问题，但我还没有找到任何关于我读过的，解决我的问题。
我的最终目标是拥有一个像倒计时钟一样的手表复杂功能。我有一个iOS应用程序，它可以从socketIO文件中读取信息，并将该文件中的信息存储在GlobalVariable.swift文件中。
在我的iOS ContentView中，我从GlobalVarible中读取并显示它。我还从同一个GlobalVarible文件中读取并在WatchKit扩展-> ContentView上显示此信息。
这是工作，但当我试图得到的信息，我的ComplicationController的socketIO信息还没有改变的变量，所以我需要安排新的条目首选每一秒，但我可以做一个变通办法，如果我可以让它工作，每分钟更新。
有人告诉我，我可以使用getTimelineEntries，但如果我在这个链接中链接，它将加载100个条目并更新100次，但从我的GlobalVaribel文件的信息存储第一秒或默认信息100次。这种方法对我不起作用。How do I refresh WatchApp complications
这让我想到了一个CreatingAndUpdatingAComplicationsTimeline的帖子，附带了一个项目，我可以看看并尝试弄清楚事情。在该文档和另一篇文章中，我可以读到我应该使用“ExtensionDelegate”
现在的问题是，这个文件和它的所有内容从来没有触发，我不知道从哪里开始我的搜索如何让它触发？我尝试在这个委托中记录所有不同的函数，但没有触发，这就是为什么我认为文件没有加载到应用程序中。

/*
See LICENSE folder for this sample’s licensing information.

Abstract:
A delegate object for the WatchKit extension that implements the needed life cycle methods.
*/

import ClockKit
import WatchKit
import os

// The app's extension delegate.
class ExtensionDelegate: NSObject, WKExtensionDelegate {
    func applicationDidFinishLaunching(){
        print("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
        print("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
        print("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
        print("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
        print("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
        print("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
    }
    func applicationDidBecomeActive(){
        print("--------------------------------------------------")
        print("applicationDidBecomeActive")
        print("--------------------------------------------------")

        
    }
    func applicationWillResignActive(){
        print("--------------------------------------------------")
        print("applicationWillResignActive")
        print("--------------------------------------------------")
    }
    func applicationWillEnterForeground(){
        print("--------------------------------------------------")
        print("applicationWillEnterForeground")
        print("--------------------------------------------------")
    }
    func applicationDidEnterBackground(){
        print("--------------------------------------------------")
        print("applicationDidEnterBackground")
        print("--------------------------------------------------")
    }

    func handle(_ backgroundTasks: Set<WKRefreshBackgroundTask>) {
        print("__________________________________________________")
        print("Handling a background task...")
        print("App State: \(WKExtension.shared().applicationState.rawValue)")
        print("__________________________________________________")

        
        for task in backgroundTasks {
            print("++++++++++++++++++++++++++++++++++++++++++++++++++")
            print("Task: \(task)")
            print("++++++++++++++++++++++++++++++++++++++++++++++++++")

            switch task {
            // Handle background refresh tasks.
            case let backgroundTask as WKApplicationRefreshBackgroundTask:
                scheduleBackgroundRefreshTasks()
                backgroundTask.setTaskCompletedWithSnapshot(true)
            case let snapshotTask as WKSnapshotRefreshBackgroundTask:
                snapshotTask.setTaskCompleted(restoredDefaultState: true, estimatedSnapshotExpiration: Date.distantFuture, userInfo: nil)
            case let connectivityTask as WKWatchConnectivityRefreshBackgroundTask:
                connectivityTask.setTaskCompletedWithSnapshot(false)
            case let urlSessionTask as WKURLSessionRefreshBackgroundTask:
                urlSessionTask.setTaskCompletedWithSnapshot(false)
            case let relevantShortcutTask as WKRelevantShortcutRefreshBackgroundTask:
                relevantShortcutTask.setTaskCompletedWithSnapshot(false)
            case let intentDidRunTask as WKIntentDidRunRefreshBackgroundTask:
                intentDidRunTask.setTaskCompletedWithSnapshot(false)
            default:
                task.setTaskCompletedWithSnapshot(false)
            }
        }
    }
}

func scheduleBackgroundRefreshTasks() {
    
    
    print("**************************************************")
    print("Scheduling a background task.")
    print("**************************************************")

    let watchExtension = WKExtension.shared()
    let targetDate = Date().addingTimeInterval(3*60)
    
    watchExtension.scheduleBackgroundRefresh(withPreferredDate: targetDate, userInfo: nil) { (error) in
        if let error = error {
            print("An error occurred while scheduling a background refresh task: \(error.localizedDescription)")
            return
        }
        
        print("Task scheduled!")
    }
}

整个项目都在这里

https://github.com/mattehalen/Scheduled-countdown-WatchKit/tree/iPhone%26WatchApp