Firebase Android onAuthStateChanged()在使用EmailandPassword()登录后触发两次
当我使用Firebase Android onAuthStateChanged()在使用EmailandPassword()登录后触发两次,android,firebase,firebase-authentication,Android,Firebase,Firebase Authentication,当我使用signInWithEmailAndPassword()登录onAuthStateChanged()时,总是会触发两次 我非常确定侦听只添加了一次到firebaseAuth,我在onStop()`中有代码,以便在这之后删除侦听器 有人知道怎么解决这个问题吗 我的代码: public class SignInActivity extends BaseActivity implements View.OnClickListener, GoogleApiClie
signInWithEmailAndPassword()
登录onAuthStateChanged()
时,总是会触发两次
我非常确定侦听只添加了一次到firebaseAuth,我在
onStop()`中有代码,以便在这之后删除侦听器
有人知道怎么解决这个问题吗
我的代码:
public class SignInActivity extends BaseActivity implements
View.OnClickListener,
GoogleApiClient.OnConnectionFailedListener{
private static final String PREF_KEY_USER_EMAIL = "User_Email";
private static final int RC_SIGN_IN = 1111;
private FirebaseAuth firebaseAuth;
private FirebaseAuth.AuthStateListener authStateListener;
private DatabaseReference firebaseDbReference;
private TextView fieldEmail;
private TextView fieldPassword;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sign_in);
getSupportActionBar().hide();
firebaseAuth = FirebaseAuth.getInstance();
firebaseDbReference = FirebaseDatabase.getInstance().getReference();
fieldEmail = (TextView) findViewById(R.id.field_email);
fieldPassword = (TextView) findViewById(R.id.field_password);
String userSavedEmail = getPreferences(MODE_PRIVATE).getString(PREF_KEY_USER_EMAIL, "");
if(userSavedEmail != null) {
fieldEmail.setText(userSavedEmail);
fieldPassword.requestFocus();
}
TextView linkForgotPassword;
Button buttonLogin;
linkForgotPassword = (TextView) findViewById(R.id.link_forgotPassword);
buttonLogin = (Button) findViewById(R.id.button_Login);
buttonSignUp = (Button) findViewById(R.id.button_signUp);
if (linkForgotPassword != null) {
linkForgotPassword.setOnClickListener(this);
}
if (buttonLogin != null) {
buttonLogin.setOnClickListener(this);
}
if (buttonSignUp != null) {
buttonSignUp.setOnClickListener(this);
}
authStateListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
if(firebaseAuth.getCurrentUser() != null) {
onAuthSuccess(firebaseAuth.getCurrentUser());
}
}
};
}
@Override
protected void onStart() {
super.onStart();
firebaseAuth.addAuthStateListener(authStateListener);
}
@Override
protected void onStop() {
super.onStop();
if (authStateListener != null) {
firebaseAuth.removeAuthStateListener(authStateListener);
}
}
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.link_forgotPassword:
forgotPassword();
break;
case R.id.button_Login:
emailLogin();
break;
case R.id.button_signUp:
emailSignUp();
break;
}
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
Toast.makeText(this, "Google Play Services error.", Toast.LENGTH_SHORT).show();
}
private void forgotPassword(){
FirebaseAuth auth = FirebaseAuth.getInstance();
String emailAddress = fieldEmail.getText().toString();
if(TextUtils.isEmpty(emailAddress)){
Toast.makeText(SignInActivity.this, R.string.msg_EnterEmail,
Toast.LENGTH_SHORT).show();
}
else {
showProgressDialog();
auth.sendPasswordResetEmail(emailAddress)
.addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
hideProgressDialog();
if (task.isSuccessful()) {
Toast.makeText(SignInActivity.this, R.string.msg_ResetPasswordEmailSent,
Toast.LENGTH_LONG).show();
}
}
});
}
}
private void emailLogin(){
if (!validateForm()) {
return;
}
showProgressDialog();
String email = fieldEmail.getText().toString();
String password = fieldPassword.getText().toString();
firebaseAuth.signInWithEmailAndPassword(email, password)
.addOnCompleteListener(new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
hideProgressDialog();
if (!task.isSuccessful()) {
Toast.makeText(SignInActivity.this, R.string.msg_EmailLoginFailed,
Toast.LENGTH_SHORT).show();
}
else {
// Save the email
getPreferences(MODE_PRIVATE).edit()
.putString(PREF_KEY_USER_EMAIL, fieldEmail.getText().toString())
.apply();
}
}
});
}
private void emailSignUp(){
if (!validateForm()) {
return;
}
showProgressDialog();
String email = fieldEmail.getText().toString();
String password = fieldPassword.getText().toString();
firebaseAuth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
hideProgressDialog();
if (task.isSuccessful()) {
FirebaseUser user = task.getResult().getUser();
String displayName = displayNameFromEmail(user.getEmail());
// Update profile display name.
UserProfileChangeRequest profileUpdates = new UserProfileChangeRequest.Builder()
.setDisplayName("Jane Q. User")
.build();
user.updateProfile(profileUpdates);
} else {
Toast.makeText(SignInActivity.this, R.string.msg_EmailSignUpFailed,
Toast.LENGTH_SHORT).show();
}
}
});
}
private void onAuthSuccess(FirebaseUser user) {
// Write new user
writeNewUser(user.getUid(),
user.getDisplayName(),
user.getEmail(),
user.getPhotoUrl());
// Go to MainActivity
startActivity(new Intent(this.getApplicationContext(), MainActivity.class));
finish();
}
private void writeNewUser(String userId, String displayName, String email, android.net.Uri photoUrl) {
User user = new User(displayName, email);
if(photoUrl != null){
user.setPhotoUrl(photoUrl.toString());
}
firebaseDbReference.child("users").child(userId).setValue(user);
}
private String displayNameFromEmail(String email) {
if (email.contains("@")) {
return email.split("@")[0];
} else {
return email;
}
}
private boolean validateForm() {
boolean result = true;
if (TextUtils.isEmpty(fieldEmail.getText().toString())) {
fieldEmail.setError("Required");
result = false;
} else {
fieldEmail.setError(null);
}
if (TextUtils.isEmpty(fieldPassword.getText().toString())) {
fieldPassword.setError("Required");
result = false;
} else {
fieldPassword.setError(null);
}
return result;
}
}
公共类的重要性扩展了BaseActivity实现
View.OnClickListener,
GoogleAppClient.OnConnectionFailedListener{
私有静态最终字符串PREF\u KEY\u USER\u EMAIL=“USER\u EMAIL”;
专用静态最终int RC_SIGN_IN=1111;
私有FirebaseAuth FirebaseAuth;
私有FirebaseAuth.AuthStateListener AuthStateListener;
私有数据库引用firebaseDbReference;
私人文本视图字段电子邮件;
私有文本视图字段密码;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity\u sign\u in);
getSupportActionBar().hide();
firebaseAuth=firebaseAuth.getInstance();
firebaseDbReference=FirebaseDatabase.getInstance().getReference();
fieldEmail=(TextView)findViewById(R.id.field\u电子邮件);
fieldPassword=(TextView)findViewById(R.id.field\u密码);
String userSavedEmail=getPreferences(MODE_PRIVATE).getString(PREF_KEY_USER_EMAIL,“”);
if(userSavedEmail!=null){
fieldEmail.setText(userSavedEmail);
fieldPassword.requestFocus();
}
TextView链接放弃密码;
按钮式按钮;
linkForgotPassword=(TextView)findViewById(R.id.link\u forgotPassword);
buttonLogin=(按钮)findViewById(R.id.Button\u登录);
buttonSignUp=(按钮)findViewById(R.id.Button\u注册);
if(linkForgotPassword!=null){
linkForgotPassword.setOnClickListener(这个);
}
如果(按钮登录!=null){
buttonLogin.setOnClickListener(此);
}
如果(按钮启动!=null){
buttonSignUp.setOnClickListener(这个);
}
authStateListener=新的FirebaseAuth.authStateListener(){
@凌驾
AuthStateChanged上的公共void(@NonNull FirebaseAuth FirebaseAuth){
如果(firebaseAuth.getCurrentUser()!=null){
onAuthSuccess(firebaseAuth.getCurrentUser());
}
}
};
}
@凌驾
受保护的void onStart(){
super.onStart();
firebaseAuth.addAuthStateListener(authStateListener);
}
@凌驾
受保护的void onStop(){
super.onStop();
if(authStateListener!=null){
firebaseAuth.removeAuthStateListener(authStateListener);
}
}
@凌驾
公共void onClick(视图v){
开关(v.getId()){
案例R.id.link\u放弃密码:
放弃密码();
打破
案例R.id.button\u登录:
emailLogin();
打破
案例R.id.按钮\注册:
emailSignUp();
打破
}
}
@凌驾
public void onconnection失败(@NonNull ConnectionResult ConnectionResult){
Toast.makeText(这是“谷歌播放服务错误”,Toast.LENGTH_SHORT.show();
}
私有无效放弃密码(){
FirebaseAuth auth=FirebaseAuth.getInstance();
字符串emailAddress=fieldEmail.getText().toString();
if(TextUtils.isEmpty(emailAddress)){
Toast.makeText(SignInActivity.this、R.string.msg_EnterEmail、,
吐司。长度(短)。show();
}
否则{
showProgressDialog();
验证sendPasswordResetEmail(电子邮件地址)
.addOnCompleteListener(新的OnCompleteListener(){
@凌驾
未完成的公共void(@NonNull任务){
hideProgressDialog();
if(task.issusccessful()){
Toast.makeText(SignInActivity.this、R.string.msg_ResetPasswordEmailSent、,
Toast.LENGTH_LONG).show();
}
}
});
}
}
私有void emailLogin(){
如果(!validateForm()){
返回;
}
showProgressDialog();
字符串email=fieldEmail.getText().toString();
字符串密码=fieldPassword.getText().toString();
firebaseAuth.使用电子邮件和密码登录(电子邮件,密码)
.addOnCompleteListener(新的OnCompleteListener(){
@凌驾
未完成的公共void(@NonNull任务){
hideProgressDialog();
如果(!task.issusccessful()){
Toast.makeText(SignInActivity.this,R.string.msg_emaillogin失败,
吐司。长度(短)。show();
}
否则{
//保存电子邮件
getPreferences(MODE_PRIVATE).edit()
.putString(PREF_KEY_USER_EMAIL,fieldEmail.getText().toString())
.apply();
}
}
});
}
私有void emailSignUp(){
如果(!validateForm()){
返回;
}
showProgressDialog();
字符串email=fieldEmail.getText().toString();
字符串密码=fieldPassword.getText().toString();
firebaseAuth.createUserWithEmailAndPassword(电子邮件,密码)
.addOnCompleteListener(新的OnCompleteListener(){
@凌驾
未完成的公共void(@NonNull任务){
private boolean flag = true;
...
authStateListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
if(firebaseAuth.getCurrentUser() != null && flag) {
onAuthSuccess(firebaseAuth.getCurrentUser());
flag=false;
}
}
};
private String authFlag = "";
...
authStateListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
if (firebaseAuth.getCurrentUser() == null) {
if (authFlag != null) {
authFlag = null;
subscriber.onNext(null);
}
} else {
String uid = firebaseAuth.getCurrentUser().getUid();
if (authFlag == null || authFlag.isEmpty() || !authFlag.equals(uid)) {
authFlag = uid;
subscriber.onNext(firebaseAuth.getCurrentUser());
}
}
}
let timeout: NodeJS.Timeout
const unsubscribe = auth().onUserChanged((changedUser) => {
clearTimeout(timeout)
timeout = setTimeout(() => {
if (changedUser) signIn(changedUser)
else signOut()
}, 300)
})