ios - 只需单击启动图标，应用程序就会卡住我的整个手机

Question

我是一名新开发人员，目前正在制作我的第一个应用程序。有时，当我尝试打开该应用程序时，图标变暗，但没有任何反应，并且整个手机短暂无响应。我的猜测是这发生在应用程序委托(delegate)中。我不确定发生了什么，但我认为我应该使用中央调度。

这是我目前在应用程序委托(delegate)中的代码，

import UIKit
import Firebase
import FirebaseMessaging

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
//Facebook SharedInstance            FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
//Firebase Database
        FIRApp.configure()
        FIRDatabase.database().persistenceEnabled = true

//Onesignal PushNotifications
        _ = OneSignal(launchOptions: launchOptions, appId: "3b2b4845-0b6a-4e92-892f-254c2cf51da8", handleNotification: nil)
        _ = OneSignal(launchOptions: launchOptions, appId: "3b2b4845-0b6a-4e92-892f-254c2cf51da8", handleNotification: { (message, additionalData, isActive) in
            NSLog("OneSignal Notification opened:\nMessage: %@", message)
            
            if additionalData != nil {
                NSLog("additionalData: %@", additionalData)
                // Check for and read any custom values you added to the notification
                // This done with the "Additonal Data" section the dashbaord.
                // OR setting the 'data' field on our REST API.
                if let customKey = additionalData["customKey"] as! String? {
                    NSLog("customKey: %@", customKey)
                }
            }
            }, autoRegister: true)
        print("didFinishLaunchingWithOptions launchOptions")
        return true
    }
    func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {
        print("application")
        return FBSDKApplicationDelegate.sharedInstance().application(application, openURL: url, sourceApplication: sourceApplication, annotation: annotation)
    }

这是否可能与应用程序委托(delegate)无关？

如果它在应用程序委托(delegate)中，如何使用 GCD 来完成这项工作

Answer 1

删除

import FirebaseMessaging

和

FIRDatabase.database().persistenceEnabled = true

从 AppDeleget 并尝试运行它