Firebase Realtime Database not getting updated //数据没有被添加到Fir

Question

所以我正在制作一个聊天应用程序，我面临的问题是，我试图将用户详细信息添加到我的实时数据库，它只是不工作，所以我可以稍后向登录用户显示它们

这是我的注册活动

public class RegisterActivity extends AppCompatActivity {
EditText username;
EditText email;
EditText password;
Button registerButton;
TextView oldMember;
FirebaseAuth auth;
DatabaseReference myRef;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);

username = findViewById(R.id.usernameEditText);
email = findViewById(R.id.emailEditText);
password = findViewById(R.id.passwordEditText);
registerButton = findViewById(R.id.RegisterButton);
oldMember = findViewById(R.id.LoginTextView);

auth = FirebaseAuth.getInstance();
myRef = FirebaseDatabase.getInstance().getReference("MyUsers");

registerButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String usernameText = username.getText().toString();
String emailText = email.getText().toString();
String passwordText = password.getText().toString();
if(TextUtils.isEmpty(usernameText) || TextUtils.isEmpty(emailText) || TextUtils.isEmpty(passwordText)){
Toast.makeText(RegisterActivity.this, "Please Fill the Required Info", Toast.LENGTH_SHORT).show();
} else {
Register(usernameText, emailText, passwordText);
}

}
});

oldMember.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getApplicationContext(), LoginActivity.class);
startActivity(intent);
finish();
}
});
}

private void Register(String username, String email, String password){
auth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull @org.jetbrains.annotations.NotNull Task<AuthResult> task) {
if(task.isSuccessful()){
FirebaseUser firebaseUser = auth.getCurrentUser();
String userid = firebaseUser.getUid();
myRef = FirebaseDatabase.getInstance()
.getReference("MyUsers")
.child(userid);

HashMap<String, String> hashMap = new HashMap<>();
hashMap.put("id", userid);
hashMap.put("username", username);
hashMap.put("imageURL", "default");

myRef.setValue(hashMap).addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull @NotNull Task<Void> task) {
if(task.isSuccessful()){
Intent intent = new Intent(getApplicationContext(), MainHomeActivity.class);
//intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
finish();
}
}
});
} else {
Toast.makeText(RegisterActivity.this, "Invalid Email or Password", Toast.LENGTH_SHORT).show();
}
}
});
}
}

这是我的实时数据库的样子

这些是我的实时数据库规则

"rules": {
".read": true,
".write": true
}
}

我将感激任何帮助!

Answer 1

不使用HashMap向firebase实时数据库添加数据

myRef = FirebaseDatabase.getInstance()
.getReference("MyUsers")
.child(userid);

HashMap<String, String> hashMap = new HashMap<>();
hashMap.put("id", userid);
hashMap.put("username", username);
hashMap.put("imageURL", "default");

为信息

创建模型类给定信息的示例模型类

public class userRegisteration(){
Sting id;
String username;
String imageURL;
//to add details it needs an empty constructor
userRegisteration(){}
userRegisteration(String id,String username,String imageURL){
this.id = id;
this.username = username;
this.imageURL = imageURL;
}
public void setID(String id){this.id = id}
public void setUsername(String username){this.username= username}
public void setImgeURL(String imageURL){this.imageURL = imageURL}
public String getID(){return id}
public String getUsername(){return username}
public String getImageURL(){return imageURL}
}

相信我它会工作