Question

我试图通过Firebase使用Facebook和Google登录进行用户管理。

P.S。我关注Firebase文档

现在一切都很好但我有问题......

1。我不明白为什么每次我按下facebbok登录按钮或谷歌登录按钮我都会看到这个警告......

是否可以仅显示一次警报？它应该永远显示什么？

2。我们来到第二个问题。每当我的应用程序到达用户选择登录的页面时，我会在照片顶部显示相同的警告...在这种情况下，用户尚未选择任何登录方法Google的警报不应该立即出现。

你能帮我解决这个问题吗？

这是来自App Delegate的代码，其中有Google按钮和Facebook设置

#import "AppDelegate.h"
@import Firebase;
@import GoogleSignIn;
@import FBSDKCoreKit;

@interface AppDelegate () <GIDSignInDelegate>

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    [FIRApp configure];

    // GOOGLE
    [GIDSignIn sharedInstance].clientID = [FIRApp defaultApp].options.clientID;
    [GIDSignIn sharedInstance].delegate = self;

    // FACEBOOK
    [[FBSDKApplicationDelegate sharedInstance] application:application didFinishLaunchingWithOptions:launchOptions];

    return YES;
}

- (BOOL)application:(nonnull UIApplication *)application openURL:(nonnull NSURL *)url options:(nonnull NSDictionary<NSString *, id> *)options {

    // FACEBOOK
    BOOL handled = [[FBSDKApplicationDelegate sharedInstance] application:application openURL:url sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey] annotation:options[UIApplicationOpenURLOptionsAnnotationKey]];

    //GOOGLE
     [[GIDSignIn sharedInstance] handleURL:url sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey] annotation:options[UIApplicationOpenURLOptionsAnnotationKey]];

    return handled;
}

// GOOGLE GIDSignInDelegate
- (void)signIn:(GIDSignIn *)signIn didSignInForUser:(GIDGoogleUser *)user withError:(NSError *)error {

    if (error == nil) {
        GIDAuthentication *authentication = user.authentication;
        FIRAuthCredential *credential = [FIRGoogleAuthProvider credentialWithIDToken:authentication.idToken accessToken:authentication.accessToken];

        [[FIRAuth auth] signInWithCredential:credential completion:^(FIRUser * _Nullable user, NSError * _Nullable error) {
            if (error) {
                NSLog(@"Nessun account registrato su FireBase da Google errore: %@", error);

                NSLog(@"%@", credential);
                return ;
            }
            NSLog(@"Registrazione Completata");
        }];

    } else NSLog(@"LOGIN GOOGLE ERRORE %@", error);

}

这是我的带有facebook按钮的viewController

#import "KPValidation.h"
@import Firebase;
@import GoogleSignIn;
@import FBSDKLoginKit;
@import FBSDKCoreKit;

@interface KPValidation () <GIDSignInUIDelegate, FBSDKLoginButtonDelegate>

@end

@implementation KPValidation

- (void)viewDidLoad {
    [super viewDidLoad];

    [self setupGoogleButton];
    [self setupFacebookButton];
}

-(void)setupFacebookButton {
    FBSDKLoginButton *loginButton = [[FBSDKLoginButton alloc] init];
    loginButton.delegate = self;
    loginButton.translatesAutoresizingMaskIntoConstraints = NO;
    loginButton.readPermissions = @[@"email", @"public_profile"];
    [self.view addSubview:loginButton];

    [loginButton.bottomAnchor constraintEqualToAnchor:self.view.bottomAnchor constant:-100].active = YES;
    [loginButton.leftAnchor constraintEqualToAnchor:self.view.leftAnchor].active = YES;
    [loginButton.rightAnchor constraintEqualToAnchor:self.view.rightAnchor].active = YES;
    [loginButton.heightAnchor constraintEqualToConstant:50].active = YES;
}

- (void)loginButton:(FBSDKLoginButton *)loginButton didCompleteWithResult:(FBSDKLoginManagerLoginResult *)result error:(NSError *)error {

    FIRAuthCredential *credential = [FIRFacebookAuthProvider credentialWithAccessToken:[FBSDKAccessToken currentAccessToken].tokenString];

     [[FIRAuth auth] signInWithCredential:credential completion:^(FIRUser *user, NSError *error) {
        if (error) {
            // ...
            return;

        }
        // User successfully signed in. Get user data from the FIRUser object
        // ...

         NSLog(@"%@", user.email);
       //  [self showEmail];

    }];
}

Answer 1

问题1：您应该查看此Additional alert shows up using AppAuth to authenticate in swift4

问题2：我认为在您的application:openURL:options:方法中，您应该检查输入网址。如果是Facebook的网址，请使用FBSDKApplicationDelegate否则使用GIDSignIn。

- (BOOL)application:(nonnull UIApplication *)application openURL:(nonnull NSURL *)url options:(nonnull NSDictionary<NSString *, id> *)options {

  if (/*url is Facebook url*/) {
    return [[FBSDKApplicationDelegate sharedInstance] application:application openURL:url sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey] annotation:options[UIApplicationOpenURLOptionsAnnotationKey]];
  } else {
    return [[GIDSignIn sharedInstance] handleURL:url sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey] annotation:options[UIApplicationOpenURLOptionsAnnotationKey]];
  }
}

Facebook /谷歌登录与Fireboard显示始终提醒

1 个答案: