ios - xcode 9 中的 Facebook 登录按钮终止

Question

我正在使用 Xcode 9 并将编译器设置为 Swift 3.2 我用 Cocoapods 安装了 Facebook Login，所有的东西都编译没有任何错误，但是每当我在模拟器中运行它时，我点击登录按钮它就会崩溃，控制台中只会打印这个:

libc++abi.dylib:以 NSException 类型的未捕获异常终止 (lldb)

这是我的 ViewController.swift:

import UIKit
import FBSDKLoginKit
import FacebookLogin

class ViewController: UIViewController {

override func viewDidLoad() {
        super.viewDidLoad()
        let loginButton = LoginButton(readPermissions: [ .publicProfile ])
    loginButton.center = view.center
    view.addSubview(loginButton)
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
}

这是我的 AppDelegate.swift

import UIKit
import FBSDKCoreKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?


func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.
    FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
    return true
}

func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
    let handled = FBSDKApplicationDelegate.sharedInstance().application(app, open: url, sourceApplication: options [UIApplicationOpenURLOptionsKey.sourceApplication] as! String!, annotation: options[UIApplicationOpenURLOptionsKey.annotation])
    return handled
}

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:.
}

Simulator

4

Answer 1

在您的 AppDelegate 中，didFinishLaunchingWithOptions，您必须返回从 sharedIstance.application(....) 返回的 bool 值:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    let bool = FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
    FBSDKAppEvents.activateApp()
    return bool
}

检查您的 Info.plist 后，您应该有类似这样的内容。 FacebookAppID 和 FacebookDisplayName 是必需的: