我正在尝试将数据插入Firebase实时数据库。我的应用程序的逻辑是在用户注册时在数据库的username列下创建一个包含password和users的新字段。
注册时，该应用需要电子邮件，用户名和密码。我正在使用Firebase Auth执行此操作。当我运行应用程序时，我可以成功注册，但不会在数据库中创建值。
如果我错过了什么，请帮助。这是我的代码。
package dev.mintz.loginapp;
import android.app.ProgressDialog;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
public static String username, password;
//defining view objects
private EditText editTextEmail;
private EditText editTextPassword;
private EditText editTextUsername;
private Button buttonSignup;
private TextView textViewSignin;
private ProgressDialog progressDialog;
//defining firebaseauth object
private FirebaseAuth firebaseAuth;
private DatabaseReference databaseReference;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//initializing firebase auth object
firebaseAuth = FirebaseAuth.getInstance();
//if getCurrentUser does not returns null
if(firebaseAuth.getCurrentUser() != null){
//that means user is already logged in
//so close this activity
finish();
//and open profile activity
startActivity(new Intent(getApplicationContext(), ProfileActivity.class));
}
//getting the database reference
databaseReference = FirebaseDatabase.getInstance().getReference();
//initializing views
editTextEmail = (EditText) findViewById(R.id.editTextEmail);
editTextUsername = (EditText) findViewById(R.id.editTextUsername);
editTextPassword = (EditText) findViewById(R.id.editTextPassword);
textViewSignin = (TextView) findViewById(R.id.textViewSignin);
buttonSignup = (Button) findViewById(R.id.buttonSignup);
progressDialog = new ProgressDialog(this);
//attaching listener to button
buttonSignup.setOnClickListener(this);
textViewSignin.setOnClickListener(this);
}
private void registerUser(){
//getting email and password from edit texts
String email = editTextEmail.getText().toString().trim();
String username = editTextUsername.getText().toString().trim();
String password = editTextPassword.getText().toString().trim();
//checking if email and passwords are empty
if(TextUtils.isEmpty(email)){
Toast.makeText(this,"Please enter email",Toast.LENGTH_LONG).show();
return;
}
if(TextUtils.isEmpty(password)){
Toast.makeText(this,"Please enter password",Toast.LENGTH_LONG).show();
return;
}
//if the email and password are not empty
//displaying a progress dialog
progressDialog.setMessage("Registering Please Wait...");
progressDialog.show();
//creating a new user
firebaseAuth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
//checking if success
if(task.isSuccessful()){
saveUserInformation();
Toast.makeText(MainActivity.this,"Successfully registered",Toast.LENGTH_LONG).show();
finish();
startActivity(new Intent(getApplicationContext(), ProfileActivity.class));
}else{
//display some message here
Toast.makeText(MainActivity.this,"Registration Error",Toast.LENGTH_LONG).show();
}
progressDialog.dismiss();
}
});
}
private void saveUserInformation() {
//Getting values from database
//creating a userinformation object
UserInformation userInformation = new UserInformation(username,password);
databaseReference.child("users").setValue(userInformation);
}
@Override
public void onClick(View view) {
if(view == buttonSignup){
registerUser();
}
if(view == textViewSignin){
//open login activity when user taps on the already registered textview
startActivity(new Intent(this, LoginActivity.class));
}
}
}
错误日志
01-19 04:10:13.442 31951-31951/? I/art: Not late-enabling -Xcheck:jni (already on)
01-19 04:10:13.443 31951-31951/? W/art: Unexpected CPU variant for X86 using defaults: x86
01-19 04:10:13.474 31951-31951/? W/System: ClassLoader referenced unknown path: /data/app/dev.mintz.loginapp-1/lib/x86
01-19 04:10:13.482 31951-31951/? I/InstantRun: Instant Run Runtime started. Android package is dev.mintz.loginapp, real application class is null.
01-19 04:10:21.400 31951-31951/dev.mintz.loginapp W/System: ClassLoader referenced unknown path: /data/app/dev.mintz.loginapp-1/lib/x86
01-19 04:10:21.511 31951-31984/dev.mintz.loginapp W/DynamiteModule: Local module descriptor class for com.google.firebase.auth not found.
01-19 04:10:21.519 31951-31984/dev.mintz.loginapp W/DynamiteModule: Local module descriptor class for com.google.firebase.auth not found.
01-19 04:10:21.552 31951-31951/dev.mintz.loginapp D/FirebaseAuth: Notifying listeners about user ( pv8XHzgO75MvPpTyEfelKGmv3mw2 ).
01-19 04:10:21.562 31951-31951/dev.mintz.loginapp D/FirebaseApp: com.google.firebase.crash.FirebaseCrash is not linked. Skipping initialization.
01-19 04:10:21.563 31951-31984/dev.mintz.loginapp W/System: ClassLoader referenced unknown path: /system/priv-app/PrebuiltGmsCore/lib/x86
01-19 04:10:21.575 31951-31984/dev.mintz.loginapp D/ApplicationLoaders: ignored Vulkan layer search path /system/priv-app/PrebuiltGmsCore/lib/x86:/system/fake-libs:/system/priv-app/PrebuiltGmsCore/PrebuiltGmsCore.apk!/lib/x86:/system/lib:/vendor/lib for namespace 0xa9c8f090
01-19 04:10:21.585 31951-31951/dev.mintz.loginapp I/FA: App measurement is starting up, version: 9683
01-19 04:10:21.585 31951-31951/dev.mintz.loginapp I/FA: To enable debug logging run: adb shell setprop log.tag.FA VERBOSE
01-19 04:10:21.585 31951-31951/dev.mintz.loginapp D/FA: Debug-level message logging enabled
01-19 04:10:21.585 31951-31951/dev.mintz.loginapp D/FA: AppMeasurement singleton hash: 107909644
01-19 04:10:21.592 31951-31951/dev.mintz.loginapp V/FA: Collection enabled
01-19 04:10:21.592 31951-31951/dev.mintz.loginapp V/FA: App package, google app id: dev.mintz.loginapp, 1:755290135710:android:03e30c324c6ca56a
01-19 04:10:21.592 31951-31951/dev.mintz.loginapp I/FA: To enable faster debug mode event logging run:
adb shell setprop firebase.analytics.debug-mode dev.mintz.loginapp
01-19 04:10:21.594 31951-31984/dev.mintz.loginapp W/System: ClassLoader referenced unknown path:
01-19 04:10:21.594 31951-31984/dev.mintz.loginapp W/System: ClassLoader referenced unknown path: /system/priv-app/PrebuiltGmsCore/lib/x86
01-19 04:10:21.599 31951-31984/dev.mintz.loginapp D/ApplicationLoaders: ignored Vulkan layer search path /system/priv-app/PrebuiltGmsCore/lib/x86:/system/fake-libs:/system/priv-app/PrebuiltGmsCore/PrebuiltGmsCore.apk!/lib/x86:/system/lib:/vendor/lib for namespace 0xa9c8f0d0
01-19 04:10:21.606 31951-31951/dev.mintz.loginapp V/FA: Registered activity lifecycle callback
01-19 04:10:21.608 31951-31951/dev.mintz.loginapp I/FirebaseInitProvider: FirebaseApp initialization successful
01-19 04:10:21.613 31951-31988/dev.mintz.loginapp V/FA: Using measurement service
01-19 04:10:21.613 31951-31988/dev.mintz.loginapp V/FA: Connecting to remote service
01-19 04:10:21.693 31951-31951/dev.mintz.loginapp W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
01-19 04:10:21.696 31951-31951/dev.mintz.loginapp V/FA: onActivityCreated
01-19 04:10:21.822 31951-31951/dev.mintz.loginapp I/DynamiteModule: Considering local module com.google.android.gms.firebase_database:4 and remote module com.google.android.gms.firebase_database:4
01-19 04:10:21.822 31951-31951/dev.mintz.loginapp I/DynamiteModule: Selected remote version of com.google.android.gms.firebase_database, version >= 4
01-19 04:10:21.825 31951-31951/dev.mintz.loginapp W/System: ClassLoader referenced unknown path: /data/user/0/com.google.android.gms/app_chimera/m/00000002/n/x86
01-19 04:10:21.836 31951-31951/dev.mintz.loginapp D/FirebaseApp: Notifying auth state listeners.
01-19 04:10:21.836 31951-31951/dev.mintz.loginapp D/FirebaseApp: Notified 1 auth state listeners.
01-19 04:10:21.849 31951-31951/dev.mintz.loginapp V/FA: onActivityCreated
01-19 04:10:21.858 31951-31988/dev.mintz.loginapp V/FA: Activity resumed, time: 9906709
01-19 04:10:21.867 31951-31992/dev.mintz.loginapp D/NetworkSecurityConfig: No Network Security Config specified, using platform default
01-19 04:10:21.879 31951-31988/dev.mintz.loginapp D/FA: Connected to remote service
01-19 04:10:21.879 31951-31988/dev.mintz.loginapp V/FA: Processing queued up service tasks: 1
01-19 04:10:21.929 31951-31995/dev.mintz.loginapp I/OpenGLRenderer: Initialized EGL, version 1.4
01-19 04:10:21.929 31951-31995/dev.mintz.loginapp D/OpenGLRenderer: Swap behavior 1
01-19 04:10:21.965 31951-31995/dev.mintz.loginapp E/EGL_emulation: tid 31995: eglSurfaceAttrib(1174): error 0x3009 (EGL_BAD_MATCH)
01-19 04:10:21.965 31951-31995/dev.mintz.loginapp W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xa0ebc360, error=EGL_BAD_MATCH
01-19 04:10:26.891 31951-31988/dev.mintz.loginapp V/FA: Inactivity, disconnecting from the service
01-19 04:10:31.896 31951-31984/dev.mintz.loginapp W/DynamiteModule: Local module descriptor class for com.google.firebase.auth not found.
01-19 04:13:23.901 31951-31951/dev.mintz.loginapp D/FirebaseAuth: Notifying listeners about a sign-out event.
01-19 04:13:23.912 31951-31951/dev.mintz.loginapp D/FirebaseApp: Notifying auth state listeners.
01-19 04:13:23.912 31951-31951/dev.mintz.loginapp D/FirebaseApp: Notified 1 auth state listeners.
01-19 04:13:23.913 31951-2386/dev.mintz.loginapp V/FA: Activity paused, time: 10088764
01-19 04:13:23.989 31951-31951/dev.mintz.loginapp V/FA: onActivityCreated
01-19 04:13:23.998 31951-2386/dev.mintz.loginapp V/FA: Activity resumed, time: 10088850
01-19 04:13:24.145 31951-31995/dev.mintz.loginapp E/EGL_emulation: tid 31995: eglSurfaceAttrib(1174): error 0x3009 (EGL_BAD_MATCH)
01-19 04:13:24.145 31951-31995/dev.mintz.loginapp W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0x85b0a2c0, error=EGL_BAD_MATCH
01-19 04:13:24.231 31951-31995/dev.mintz.loginapp D/OpenGLRenderer: endAllActiveAnimators on 0x85b31280 (RippleDrawable) with handle 0x869484c0
01-19 04:15:27.159 31951-4277/dev.mintz.loginapp V/FA: Activity paused, time: 10212010
01-19 04:15:27.240 31951-31951/dev.mintz.loginapp V/FA: onActivityCreated
[ 01-19 04:15:27.245 1602: 1627 D/ ]
HostConnection::get() New Host Connection established 0x8cab5540, tid 1627
01-19 04:15:27.251 31951-4277/dev.mintz.loginapp V/FA: Activity resumed, time: 10212102
01-19 04:15:27.350 31951-31995/dev.mintz.loginapp E/EGL_emulation: tid 31995: eglSurfaceAttrib(1174): error 0x3009 (EGL_BAD_MATCH)
01-19 04:15:27.350 31951-31995/dev.mintz.loginapp W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0x83719a00, error=EGL_BAD_MATCH
01-19 04:15:27.555 31951-31951/dev.mintz.loginapp W/IInputConnectionWrapper: finishComposingText on inactive InputConnection
01-19 04:15:41.216 31951-31951/dev.mintz.loginapp W/IInputConnectionWrapper: finishComposingText on inactive InputConnection
01-19 04:15:44.184 31951-31951/dev.mintz.loginapp W/IInputConnectionWrapper: finishComposingText on inactive InputConnection
01-19 04:15:49.822 31951-31984/dev.mintz.loginapp W/DynamiteModule: Local module descriptor class for com.google.firebase.auth not found.
01-19 04:15:49.823 31951-31984/dev.mintz.loginapp W/DynamiteModule: Local module descriptor class for com.google.firebase.auth not found.
01-19 04:15:49.867 31951-31995/dev.mintz.loginapp E/EGL_emulation: tid 31995: eglSurfaceAttrib(1174): error 0x3009 (EGL_BAD_MATCH)
01-19 04:15:49.867 31951-31995/dev.mintz.loginapp W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xa0eee300, error=EGL_BAD_MATCH
01-19 04:15:56.011 31951-31963/dev.mintz.loginapp D/FirebaseAuth: Notifying listeners about a sign-out event.
01-19 04:15:56.011 31951-31951/dev.mintz.loginapp D/FirebaseApp: Notifying auth state listeners.
01-19 04:15:56.012 31951-31951/dev.mintz.loginapp D/FirebaseApp: Notified 1 auth state listeners.
01-19 04:15:56.015 31951-31963/dev.mintz.loginapp D/FirebaseAuth: Notifying listeners about user ( LuXbE7Pbe1gVjQb7XqAOCTXZbFF3 ).
01-19 04:15:56.015 31951-31951/dev.mintz.loginapp D/FirebaseApp: Notifying auth state listeners.
01-19 04:15:56.016 31951-31951/dev.mintz.loginapp D/FirebaseApp: Notified 1 auth state listeners.
01-19 04:15:56.103 31951-4277/dev.mintz.loginapp V/FA: Activity paused, time: 10240955
[ 01-19 04:15:56.108 1602: 1627 D/ ]
HostConnection::get() New Host Connection established 0x8ee8d640, tid 1627
01-19 04:15:56.675 31951-31995/dev.mintz.loginapp E/EGL_emulation: tid 31995: eglSurfaceAttrib(1174): error 0x3009 (EGL_BAD_MATCH)
01-19 04:15:56.675 31951-31995/dev.mintz.loginapp W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0x83609220, error=EGL_BAD_MATCH
01-19 04:15:56.676 31951-31951/dev.mintz.loginapp V/FA: onActivityCreated
01-19 04:15:56.683 31951-4277/dev.mintz.loginapp V/FA: Activity resumed, time: 10241534
01-19 04:15:56.815 31951-31995/dev.mintz.loginapp E/EGL_emulation: tid 31995: eglSurfaceAttrib(1174): error 0x3009 (EGL_BAD_MATCH)
01-19 04:15:56.815 31951-31995/dev.mintz.loginapp W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0x869254e0, error=EGL_BAD_MATCH
01-19 04:15:56.863 31951-31951/dev.mintz.loginapp W/IInputConnectionWrapper: finishComposingText on inactive InputConnection
01-19 04:15:59.921 31951-31984/dev.mintz.loginapp W/DynamiteModule: Local module descriptor class for com.google.firebase.auth not found.
01-19 04:16:57.336 31951-5610/dev.mintz.loginapp V/FA: Recording user engagement, ms: 3600055
01-19 04:16:57.342 31951-5610/dev.mintz.loginapp I/FA: Tag Manager is not found and thus will not be used
01-19 04:16:57.345 31951-5610/dev.mintz.loginapp D/FA: Logging event (FE): _e, Bundle[{_o=auto, _et=3600055}]
01-19 04:16:57.355 31951-5610/dev.mintz.loginapp V/FA: Using measurement service
01-19 04:16:57.355 31951-5610/dev.mintz.loginapp V/FA: Connecting to remote service
01-19 04:16:57.360 31951-5610/dev.mintz.loginapp D/FA: Connected to remote service
01-19 04:16:57.360 31951-5610/dev.mintz.loginapp V/FA: Processing queued up service tasks: 1
01-19 04:17:02.369 31951-5610/dev.mintz.loginapp V/FA: Inactivity, disconnecting from the service
答案 0 :(得分：0)
检查用户名和密码字段是否为空或尝试此代码几乎相似。
final String emailId = mEditTextEmail.getText().toString() ;
String password = mEditTextPassword.getText().toString() ;
firebaseRef.createUser(emailId, password, new Firebase.ValueResultHandler<Map<String,Object>>() {
@Override
public void onSuccess(Map<String, Object> stringObjectMap) {
User user = new User();
user.setUsername(emailId);
user.setPassword(password);
firebaseRef.child("Users").child(stringObjectMap.get("uid").toString()).setValue(user);
}
答案 1 :(得分：0)
你必须把firebaseAuth.createUserWithEmailAndPassword（）...放在else中，因为在代码中它会检查电子邮件和密码是否为空并继续其余的....所以请仔细考虑这个方法..
If (TextUtils.isEmpty(email) || TextUtils.isEmpty(password) ){
if(TextUtils.isEmpty(email)){
Toast.makeText(this,"Please enter email",Toast.LENGTH_LONG).show();
return;
}
if(TextUtils.isEmpty(password)){
Toast.makeText(this,"Please enter password",Toast.LENGTH_LONG).show();
return;
}
}
else {
progressDialog.setMessage("Registering Please Wait...");
progressDialog.show();
//creating a new user
firebaseAuth.createUserWithEmailAndPassword(email, password).........
}