如何在 Android 中使用 Firebase 存储用户数据? [英] How to store user data using Firebase in Android?

问题描述

我需要为每个登录到应用程序的用户创建和使用一个包含所有详细信息(uid、名称等)的数据库条目

I need to create and use a database entry with all details (uid, name etc) for each user that logs in to the application

我在存储用户数据时遇到问题，无法在 Android 中使用 Firebase 使用和检索用户个人资料信息.我在旧版本上找到了这个文档的 Firebase，但这似乎不再起作用.

I am having trouble storing user data in order to use and retrieve user profile info using Firebase in Android. I found this documentation on the old version of Firebase but this does not seem to work any longer.

有谁知道如何重现上述代码以使其适用于新版本的 Firebase?非常感谢.

Does anyone know how to reproduce the above code so it works with the new version of Firebase? Many thanks in advance.

编辑 - 下面的代码:

Edit - code below:

final Firebase ref = new Firebase("https://<YOUR-FIREBASE-APP>.firebaseio.com");
ref.authWithPassword("[e-mail]", "correcthorsebatterystaple",
new Firebase.AuthResultHandler() {
@Override
public void onAuthenticated(AuthData authData) {
    // Authentication just completed successfully :)
    Map<String, String> map = new HashMap<String, String>();
    map.put("provider", authData.getProvider());
    if(authData.getProviderData().containsKey("displayName")) {
        map.put("displayName", authData.getProviderData().get("displayName").toString());
    }
    ref.child("users").child(authData.getUid()).setValue(map);
}
@Override
public void onAuthenticationError(FirebaseError error) {
    // Something went wrong :(
}
});

推荐答案

在firebase数据库(新版本)中创建用户，需要做如下修改..

For creating user in firebase database (new Version) ,you need to do changes as followning..

      private FirebaseAuth mAuth;
        String mUserEmail = "[e-mail]";
        String mPassword = "correcthorsebatterystaple"

      mAuth.createUserWithEmailAndPassword(mUserEmail, mPassword)
     .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {

                    Log.d(LOG_TAG, getString(R.string.log_message_auth_successful) + " createUserWithEmail:onComplete:" + task.isSuccessful());

                    // if task is not successful show error
                    if (!task.isSuccessful()) {

                        try {
                            throw task.getException();
                        } catch (FirebaseAuthUserCollisionException e) {
                            // log error here                            

                      } catch (FirebaseNetworkException e) {
                            // log error here  
                        } catch (Exception e) {
                         // log error here        
                         }

                        } else {

                  // successfully user account created
                 // now the AuthStateListener runs the onAuthStateChanged callback

                    }
                }

            });
         }

现在在 onCreate() 中添加以下方法.

now Add following method in onCreate() .

   final DatabaseReference ref = FirebaseDatabase.getInstance().
     getReferenceFromUrl(https://<YOUR-FIREBASE-APP>.firebaseio.com");
     mAuth = FirebaseAuth.getInstance();
     mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();

            if (user != null) {
                // User is signed in
             Map<String, String> map = new HashMap<String, String>();
             map.put("provider", user.getProvider());
             if(user.getProviderData().containsKey("displayName")) {
             map.put("displayName",  
             user.getProviderData().get("displayName").toString());
            } 
            ref.child("users").child(user.getUid()).setValue(map);
            } else {
                // User is signed out
                Log.d(LOG_TAG, "onAuthStateChanged:signed_out");
            }
        }
    };

   @Override
public void onStart() {
    super.onStart();
    mAuth.addAuthStateListener(mAuthListener);
}

@Override
public void onStop() {
    super.onStop();
    if (mAuthListener != null) {
        mAuth.removeAuthStateListener(mAuthListener);
    }

}

这篇关于如何在 Android 中使用 Firebase 存储用户数据?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！