Question

当我尝试将命令FIRApp.configure()添加到ViewController中的viewDidLoad()方法时，我一直得到：

libc++abi.dylib: terminating with uncaught exception of type NSException

这是我的代码：

import UIKit
import Firebase
import FirebaseDatabase


class ViewController: UIViewController {
@IBOutlet weak var usernameTextField: UITextField!
override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
//        if UserDefaults.standard().string(forKey: "username") != nil {
//            performSegue(withIdentifier: "userInfoSegue", sender: self) }
    FIRApp.configure()
}

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

Answer 1

您应该在AppDelegate。

中调用此方法

从文档中，我们可以看到应用程序启动后应调用configure。因此，将它放在application(_:didFinishLaunchingWithOptions:)中是最有意义的，因为在应用程序启动时会调用该方法！

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    FIRApp.configure()
    return true
}

Firebase未配置iOS

1 个答案: