无法将数据写入数据库 firebase firestore

Question

I manage to insert the data to authentication, but could not insert to database:

Code :

fullname = findViewById(R.id.Ifullname);
        password = findViewById(R.id.Ipassword);
        email = findViewById(R.id.Iemail);
        RegisterBtn = findViewById(R.id.button);
        fAuth = FirebaseAuth.getInstance();
        fStore = FirebaseFirestore.getInstance();
        loginBtn = findViewById(R.id.LoginBtn);
RegisterBtn.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v){
                String FullName = fullname.getText().toString().trim();
                String Password = password.getText().toString().trim();
                String Email = email.getText().toString().trim();
fAuth.createUserWithEmailAndPassword(Email, Password).addOnCompleteListener(new OnCompleteListener<AuthResult>(){
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task){
                        if(task.isSuccessful()){
                            Toast.makeText(Register.this, "User Created.", Toast.LENGTH_SHORT).show();
                            UserID = fAuth.getCurrentUser().getUid();
                            DocumentReference documentReference = fStore.collection("users").document(UserID);
                            Map<String,Object> user = new HashMap<>();
                            user.put("FName", fullname);
                            user.put("Email",email);
                            user.put("Password",password);
//problem seems to be this line  
documentReference.set(user).addOnSuccessListener(new OnSuccessListener<Void>() {
                                @Override
                                public void onSuccess(Void aVoid) {
                                    Log.d(TAG, "onSuccess: user Profile is created");
                                }

                            }).addOnFailureListener(new OnFailureListener() {
                                @Override
                                public void onFailure(@NonNull Exception e) {
                                    Log.d(TAG, "onFailure:"+e.toString());

                                }
                            });

Error :

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.budgetingapp, PID: 11507 java.lang.RuntimeException: Found conflicting getters for name getText on class androidx.appcompat.widget.AppCompatEditText at com.google.firebase.firestore.util.CustomClassMapper$BeanMapper.(com.google.firebase:firebase-firestore@@21.4.1:629) at com.google.firebase.firestore.util.CustomClassMapper.loadOrCreateBeanMapperForClass(com.google.firebase:firebase-firestore@@21.4.1:377) at com.google.firebase.firestore.util.CustomClassMapper.serialize(com.google.firebase:firebase-firestore@@21.4.1:177) at com.google.firebase.firestore.util.CustomClassMapper.serialize(com.google.firebase:firebase-firestore@@21.4.1:140) at com.google.firebase.firestore.util.CustomClassMapper.serialize(com.google.firebase:firebase-firestore@@21.4.1:104) at com.google.firebase.firestore.util.CustomClassMapper.convertToPlainJavaTypes(com.google.firebase:firebase-firestore@@21.4.1:78) at com.google.firebase.firestore.UserDataReade r.convertAndParseDocumentData(com.google.firebase:firebase-firestore@@21.4.1:231) at com.google.firebase.firestore.UserDataReader.parseSetData(com.google.firebase:firebase-firestore@@21.4.1:75) at com.google.firebase.firestore.DocumentReference.set(com.google.firebase:firebase-firestore@@21.4.1:166) at com.google.firebase.firestore.DocumentReference.set(com.google.firebase:firebase-firestore@@21.4.1:146) at com.example.budgetingapp.Register$1$1.onComplete(Register.java:95) at com.google.android.gms.tasks.zzj.run(Unknown Source:4) at android.os.Handler.handleCallback(Handler.java:873) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

Answer 1

In short, you are trying to add the TextField's themselves to your database, not the strings you created.

String FullName = fullname.getText().toString().trim();
String Password = password.getText().toString().trim();
String Email = email.getText().toString().trim();
/* ... */
user.put("FName", fullname);
user.put("Email",email);
user.put("Password",password);

---

I recommend adopting some naming conventions to prevent this. I personally recommend <short-object-type><variable-name> written in camelCase .

Button     #button   -> #btnRegister
Button     #LoginBtn -> #btnLogin
TextField  #fullname -> #txtFullName
TextField  #email    -> #txtEmail
TextField  #password -> #txtPwd

Sometimes it may also be useful to distinguish private object-level variables from local variables, conventionally by adding an m (for my) at the start of the name:

mBtnRegister.setOnClickListener(...);
Button btnScripted = new Button(...);

You should name variables in camelCase (or UPPER_SNAKE_CASE for constants) and not in PascalCase so they aren't misidentified as classes, interfaces, etc. You can actually see this in action by looking at the syntax highlighting of StackOverflow's code blocks.

---

String fullname = txtFullName.getText().toString().trim();
String password = txtPwd.getText().toString().trim();
String email = txtEmail.getText().toString().trim();
/* ... */
user.put("fname", fullname);
user.put("email", email);
// do not store passwords!