由于某种原因，每当我在applicationDidFinishLaunching方法中运行FirebaseApp.configure（）时，都会出现错误。但是，当我在init中运行FirebaseApp.configure（）时，它工作正常。这是为什么？我得到的错误是
libc++abi.dylib: terminating with uncaught exception of type NSException
我之所以要在我的applicaitonDidFinishLaunching方法中运行FirebaseApp.configure（），是因为我正在尝试设置Firebase云消息传递。它目前无法正常工作，但是当我从头开始创建新的演示应用程序后，我意识到，如果FirebaseApp.configure（）位于applicationDidFinishLaunching方法中，则可以正常工作，但是如果将其放入init方法中，则无法正常工作。
如果我从不调用FirebaseApp.configure（），也会遇到相同的错误。
这是我的Podfile
# Uncomment the next line to define a global platform for your project
# platform :ios, '9.0'
target 'ArcadeCity' do
use_frameworks!
# Pods for ArcadeCity
pod 'Firebase/Core'
pod 'Firebase/Database'
pod 'Firebase/Storage'
pod 'Firebase/Messaging'
pod 'FBSDKCoreKit'
pod 'FBSDKShareKit'
pod 'FBSDKLoginKit'
pod 'Firebase/Auth'
pod 'GoogleMaps', '= 2.3.0'
end
这是我的应用程序代表
import UIKit
import CoreData
import Firebase
import FirebaseInstanceID
import FirebaseMessaging
import UserNotifications
import FBSDKCoreKit
import GoogleMaps
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate, MessagingDelegate {
var window: UIWindow?
override init() {
super.init()
//FirebaseApp.configure()
}
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
GMSServices.provideAPIKey("AIzaSyAJxvbSc0wd1jJYCpqEC0iAB4PPlMu03UE")
UITabBar.appearance().tintColor = UIColor(red:0.02, green:0.44, blue:0.75, alpha:1.0)
if #available(iOS 10.0, *) {
// For iOS 10 display notification (sent via APNS)
UNUserNotificationCenter.current().delegate = self
Messaging.messaging().delegate = self
let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
UNUserNotificationCenter.current().requestAuthorization(
options: authOptions,
completionHandler: {_, _ in })
} else {
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
application.registerUserNotificationSettings(settings)
}
application.registerForRemoteNotifications()
FirebaseApp.configure()
let token = Messaging.messaging().fcmToken
print("FCM token: \(token ?? "")\nend")
return true
}
func messaging(_ messaging: Messaging, didRefreshRegistrationToken fcmToken: String) {
print("Firebase registration token: \(fcmToken)")
}
// Called when APNs has assigned the device a unique token
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
Messaging.messaging().apnsToken = deviceToken
let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
print("APNs device token: \(deviceTokenString)")
Messaging.messaging().subscribe(toTopic: "newRideRequests")
}
// Called when APNs failed to register the device for push notifications
func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
// Print the error to console (you should alert the user that registration failed)
print("APNs registration failed: \(error)")
}
func messaging(_ messaging: Messaging, didReceive remoteMessage: MessagingRemoteMessage) {
print(remoteMessage.appData)
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
print(userInfo)
}
func applicationWillResignActive(_ application: UIApplication) {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
}
func applicationDidEnterBackground(_ application: UIApplication) {
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}
func applicationWillEnterForeground(_ application: UIApplication) {
// Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}
func applicationDidBecomeActive(_ application: UIApplication) {
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}
func applicationWillTerminate(_ application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
// Saves changes in the application's managed object context before the application terminates.
self.saveContext()
}
// MARK: - Core Data stack
lazy var persistentContainer: NSPersistentContainer = {
/*
The persistent container for the application. This implementation
creates and returns a container, having loaded the store for the
application to it. This property is optional since there are legitimate
error conditions that could cause the creation of the store to fail.
*/
let container = NSPersistentContainer(name: "ArcadeCity")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
/*
Typical reasons for an error here include:
* The parent directory does not exist, cannot be created, or disallows writing.
* The persistent store is not accessible, due to permissions or data protection when the device is locked.
* The device is out of space.
* The store could not be migrated to the current model version.
Check the error message to determine what the actual problem was.
*/
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
return container
}()
// MARK: - Core Data Saving support
func saveContext () {
let context = persistentContainer.viewContext
if context.hasChanges {
do {
try context.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nserror = error as NSError
fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
}
}
}
}
最佳答案
确保您不会无意中多次调用FirebaseApp.configure()，因为多次调用它会导致异常。
关于ios - 如何解决Swift iOS的libc++ abi.dylib错误，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/48245594/