使用 Firebase Auth，如何在不登出当前活跃帐户的情况下创建新帐户？

huangapple
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英文:

Using firebase auth, how can I create accounts without login out of the current active one?

问题

在我正在进行的项目中，我们正在使用Firebase身份验证。

在应用程序内，用户能够为其他用户创建帐户。然而，我们遇到的问题是，每当创建一个新帐户时，新用户会自动登录，因此会话会丢失，例如：

  • 人员A创建一个名为A的帐户

  • A会自动登录（这是正确的）

  • A为人员B创建一个帐户，名为B

  • B会自动登录，而A会被踢出（这是不好的）

我找到了解决相同问题的这个链接 的答案，但尝试实施后，它仍然不起作用（也许答案已过时？）。我正在使用Firestore，而不是实时数据库，如果相关的话。

这是我的代码：

  1. FirebaseAuth mAuth;
  2. FirebaseAuth mAuth2;
  3. FirebaseFirestore firestore;
  5. protected void onCreate(Bundle savedInstanceState) {
  6. 	super.onCreate(savedInstanceState);
  7. 	setContentView(R.layout.activity_account_management);
  8. 	
  9. 	mAuth = FirebaseAuth.getInstance();
  10. 	firestore = FirebaseFirestore.getInstance();
  11. 	
  12. 	buildSecondAuth();
  13. }
  15. /* 构建辅助 mAuth 以便创建新用户 */
  16. private void buildSecondAuth() {
  17. 	FirebaseOptions firebaseOptions = new FirebaseOptions.Builder()
  18. 			.setDatabaseUrl(firestore.getApp().getOptions().getDatabaseUrl())
  19. 			.setApiKey(firestore.getApp().getOptions().getApiKey())
  20. 			.setApplicationId(firestore.getApp().getOptions().getProjectId()).build();
  21. 	try {
  22. 		FirebaseApp myApp = FirebaseApp.initializeApp(getApplicationContext(), firebaseOptions, mAuth.getApp().getName());
  23. 		mAuth2 = FirebaseAuth.getInstance(myApp);
  24. 	} catch (IllegalStateException e)
  25. 	{
  26. 		mAuth2 = FirebaseAuth.getInstance(FirebaseApp.getInstance(mAuth.getApp().getName()));
  27. 	}
  28. }
  30. /* 使用辅助 auth 创建新帐户 */
  31. private void signUpNewUser()
  32. {
  33. 	mAuthJugador.createUserWithEmailAndPassword(getEmail(), getPass())
  34. 			.addOnCompleteListener(this, new OnCompleteListener<AuthResult>()
  35. 			{
  36. 				@Override
  37. 				public void onComplete(@NonNull Task<AuthResult> task)
  38. 				{
  39. 					if (task.isSuccessful())
  40. 					{
  41. 						mAuth2.signOut();
  42. 					}
  43. 					else
  44. 					{
  45. 						Log.w("TAG", "createUserWithEmail:failure", task.getException());
  46. 					}
  47. 				}
  48. 			});
  50. }

请注意，代码中存在一些拼写错误，例如mAuthJugador应更正为mAuth。

英文:

In a project I'm working on, we are using firebase auth.

Inside the app, users are able to create accounts for other users. However, we have the problem that, whenever a new account is created, the new user is automatically signed in, so the session is lost, for example:

  • Person A creates an account, named A

  • A is automatically signed in (this is correct)

  • A creates an account for person B, named B

  • B is automatically signed in and A is kicked out (this is bad)

I found this answer to the same problem, but after trying the implementation, it still doesnt work (maybe the answer is outdated?). I am using firestore, not realtime, in case it is relevant.

This is my code:

  1. FirebaseAuth mAuth;
  2. FirebaseAuth mAuth2;
  3. FirebaseFirestore firestore;
  4. protected void onCreate(Bundle savedInstanceState) {
  5. super.onCreate(savedInstanceState);
  6. setContentView(R.layout.activity_account_management);
  7. mAuth = FirebaseAuth.getInstance();
  8. firestore = FirebaseFirestore.getInstance();
  9. buildSecondAuth()
  10. }
  11. /*Builds the auxiliar mAuth in order to create a new user*/
  12. private void buildSecondAuth() {
  13. FirebaseOptions firebaseOptions = new FirebaseOptions.Builder()
  14. .setDatabaseUrl(firestore.getApp().getOptions().getDatabaseUrl())
  15. .setApiKey(firestore.getApp().getOptions().getApiKey())
  16. .setApplicationId(firestore.getApp().getOptions().getProjectId()).build();
  17. try {
  18. FirebaseApp myApp = FirebaseApp.initializeApp(getApplicationContext(), firebaseOptions, mAuth.getApp().getName());
  19. mAuth2 = FirebaseAuth.getInstance(myApp);
  20. } catch (IllegalStateException e)
  21. {
  22. mAuth2 = FirebaseAuth.getInstance(FirebaseApp.getInstance(mAuth.getApp().getName()));
  23. }
  24. }
  25. /*Uses the auxiliar auth to create a new account*/
  26. private void signUpNewUser()
  27. {
  28. mAuthJugador.createUserWithEmailAndPassword(getEmail(), getPass())
  29. .addOnCompleteListener(this, new OnCompleteListener&lt;AuthResult&gt;()
  30. {
  31. @Override
  32. public void onComplete(@NonNull Task&lt;AuthResult&gt; task)
  33. {
  34. if (task.isSuccessful())
  35. {
  36. mAuth2.signOut();
  37. }
  38. else
  39. {
  40. Log.w(&quot;TAG&quot;, &quot;createUserWithEmail:failure&quot;, task.getException());
  41. }
  42. }
  43. });
  44. }

答案1

得分: 0

我认为您不能为同一个Firebase应用程序创建两个身份验证实例。您可以在同一个Android应用程序中为不同的Firebase应用程序创建2个实例。

有关更多信息，请参阅此之前已回答的帖子。

英文:

I think you cannot create 2 instances of authencation for the same firebase app. You can create 2 instances for different firebase app in the same Android app.

For more info. See this previously answered post.

huangapple
  • 本文由 发表于 2020年9月8日 00:35:48
  • 转载请务必保留本文链接：https://go.coder-hub.com/63781312.html
  • android
  • firebase
  • firebase-authentication
  • java
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