如何在Android上的Firebase数据库中存储用户Uid?
我想将当前登录用户Uid保存/显示到Firebase数据库中。这是我的代码:如何在Android上的Firebase数据库中存储用户Uid?,android,firebase-realtime-database,Android,Firebase Realtime Database,我想将当前登录用户Uid保存/显示到Firebase数据库中。这是我的代码: private EditText mEmail, mPassword; private Button mLogin, mRegistration; private FirebaseAuth mAuth; private FirebaseAuth.AuthStateListener firebaseAuthListener; @Override protected void onCreate(Bundle saved
private EditText mEmail, mPassword;
private Button mLogin, mRegistration;
private FirebaseAuth mAuth;
private FirebaseAuth.AuthStateListener firebaseAuthListener;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_driver_login);
mAuth = FirebaseAuth.getInstance();
firebaseAuthListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
if (user!=null) {
Intent intent = new Intent(DriverLoginActivity.this,DriverMapActivity.class);
startActivity(intent);
finish();
return;
}
}
};
mEmail = (EditText) findViewById(R.id.email);
mPassword = (EditText) findViewById(R.id.password);
mLogin = (Button) findViewById(R.id.login);
mRegistration = (Button) findViewById(R.id.registration);
mRegistration.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String email = mEmail.getText().toString();
String password = mPassword.getText().toString();
mAuth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(DriverLoginActivity.this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (!task.isSuccessful()) {
Toast.makeText(DriverLoginActivity.this,"sign up error", Toast.LENGTH_SHORT).show();
} else {
String user_id = mAuth.getCurrentUser().getUid();
DatabaseReference current_user_db = FirebaseDatabase.getInstance().getReference().child("Users").child("Drivers").child(user_id);
current_user_db.setValue(true);
}
}
});
}
});
mLogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final String email = mEmail.getText().toString();
final String password = mPassword.getText().toString();
mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(DriverLoginActivity.this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (!task.isSuccessful()) {
Toast.makeText(DriverLoginActivity.this,"sign in error", Toast.LENGTH_SHORT).show();
}
}
});
}
});
}
@Override
protected void onStart() {
super.onStart();
mAuth.addAuthStateListener(firebaseAuthListener);
}
@Override
protected void onStop() {
super.onStop();
mAuth.removeAuthStateListener(firebaseAuthListener);
}
private EditText mEmail,mPassword;
专用按钮登录、注册;
私人消防队;
私有FirebaseAuth.AuthStateListener firebaseAuthListener;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity\u driver\u login);
mAuth=FirebaseAuth.getInstance();
firebaseAuthListener=新的FirebaseAuth.AuthStateListener(){
@凌驾
AuthStateChanged上的公共void(@NonNull FirebaseAuth FirebaseAuth){
FirebaseUser=FirebaseAuth.getInstance().getCurrentUser();
如果(用户!=null){
意向意向=新意向(DriverLoginActivity.this,DriverMapActivity.class);
星触觉(意向);
完成();
返回;
}
}
};
mEmail=(EditText)findViewById(R.id.email);
mPassword=(EditText)findViewById(R.id.password);
mLogin=(按钮)findviewbyd(R.id.login);
mrRegistration=(按钮)findViewById(R.id.registration);
mrRegistration.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
字符串email=mEmail.getText().toString();
字符串密码=mPassword.getText().toString();
mAuth.createUserWithEmailAndPassword(电子邮件,密码).addOnCompleteListener(DriverLoginActivity.this,新OnCompleteListener
在这个视频中,一切正常,但我的Uid没有显示在数据库中
firebase中的默认数据库规则如下所示。
这些规则不允许任何人对您的数据库进行读写访问
{
"rules": {
".read": false,
".write": false
}
}
您必须按以下方式更改数据库规则,以允许经过身份验证的用户进行读写
{
"rules": {
".read": "auth!=null",
".write": "auth!=null"
}
}
请转到firebase控制台并签出数据库的数据库规则选项卡您的驱动程序节点正在创建吗?因为您的数据库结构图像没有反映您在CreateUserWithEmailandPassword上的上一次查询,我也在尝试使用Riders节点,但它也不起作用。上面的代码与教程相同,链接哪个giv在上面。