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아이브가 firebase를 사용하여 내 앱에 로그인 할 때 사용자 아이디를 찾을 수 없습니다. 하지만 난 구글에 로그인 할 때 그 다음 벌금 로그 i는 사용자 ID를 필요로하고 내가 이메일 다음 기호를 사용하여 로그인하면 그것이Firebase Google에 로그인 할 때
java.lang.String com.google.firebase.auth.FirebaseUser.getUid()' on a null object reference
또한 내 로그에이 오류를 cliving 찾을 xant 때문에 내 주요 활동에 충돌 Google 계정으로 로그인 할 때 내 비밀번호를 삭제하고 내 계정을 삭제하지 않으면 다시 이메일을 사용하여 인증 할 수 없습니다.
로그인 내 코드는 내가 한 OnCreate
private void GetUser_Firebase() {
user = FirebaseAuth.getInstance().getCurrentUser();
userid = user.getUid();
DatabaseReference ref1 = mrootRef.getReference();
mloggedinas = (TextView) findViewById(R.id.tvloggedin);
ref1.child("User").child(userid).addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
String m = dataSnapshot.child("screenname").getValue(String.class);
if (m == null) {
Toast.makeText(MainActivity.this, "Please fill in the above fields", Toast.LENGTH_LONG).show();
startActivity(new Intent(MainActivity.this, Edit_profile.class));
} else {
mloggedinas.setText(m);
}
}
편집에서이 메소드를 호출하는 사용자 ID를 요구 내 주요 활동에
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//hides keyboard on start;
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
setContentView(com.example.harrops.h20droidapp2.R.layout.activity_login);
Intent intent = new Intent(Login.this, UpdateService.class);
startService(intent);
mAuth = FirebaseAuth.getInstance();
cbrememberme = (CheckBox) findViewById(R.id.cbrememberme);
mgo = (Button) findViewById(R.id.btnsubmit);
mgo.setText("Login");
memail = (EditText) findViewById(R.id.etemail);
mpass = (EditText) findViewById(R.id.etpass);
mforgot = (TextView) findViewById(R.id.tvforgotpass);
mreset = (Button) findViewById(R.id.btnreset);
mmember = (CheckBox) findViewById(R.id.cbexisiting);
loginPreferences = getSharedPreferences("loginPrefs", MODE_PRIVATE);
loginPrefsEditor = loginPreferences.edit();
saveLogin = loginPreferences.getBoolean("saveLogin", false);
if (saveLogin == true) {
memail.setText(loginPreferences.getString("username", ""));
mpass.setText(loginPreferences.getString("password", ""));
cbrememberme.setChecked(true);
signinnorm();
}
mmember.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (mmember.isChecked() == false) {
mgo.setText("Sign in");
memail.setHint("Sign up with a a valid email address");
} else {
mgo.setText("Register");
mpass.setHint("Enter new password");
}
}
});
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestIdToken(getString(R.string.default_web_client_id))
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
SignInButton signInButton = (SignInButton) findViewById(R.id.sign_in_button);
findViewById(R.id.sign_in_button).setOnClickListener(this);
signInButton.setSize(SignInButton.SIZE_STANDARD);
mreset.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mreset.setVisibility(View.GONE);
mpass.setVisibility(View.VISIBLE);
ResetPassword();
}
});
mforgot.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mpass.setVisibility(View.GONE);
mreset.setVisibility(View.VISIBLE);
}
});
mgo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (!mmember.isChecked()) {
signinnorm();
} else {
signup();
}
}
});
}
private void signup() {
String email;
String password;
email = memail.getText().toString().trim();
password = mpass.getText().toString().trim();
if (TextUtils.isEmpty(email) || TextUtils.isEmpty(password)) {
memail.setHint(getString(R.string.ENTERYOUREMAIL));
memail.setHintTextColor(RED);
mpass.setHint(getString(R.string.ENTERYOURPASSWORD));
mpass.setHintTextColor(RED);
} else {
mAuth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
// Sign in success, update UI with the signed-in user's information
Log.d(TAG, "createUserWithEmail:success");
FirebaseUser user = mAuth.getCurrentUser();
mmember.setChecked(false);
cbrememberme.setChecked(true);
Toast.makeText(Login.this, "Thanks for signing up. click login in to continue", Toast.LENGTH_SHORT);
;
} else {
// If sign in fails, display a message to the user.
Log.w(TAG, "createUserWithEmail:failure", task.getException());
Toast.makeText(Login.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
}
}
});
}
}
private void signinnorm() {
String email = memail.getText().toString().trim();
String password = mpass.getText().toString().trim();
if (cbrememberme.isChecked()) {
loginPrefsEditor.putBoolean("saveLogin", true);
loginPrefsEditor.putString("username", email);
loginPrefsEditor.putString("password", password);
loginPrefsEditor.commit();
} else {
loginPrefsEditor.clear();
loginPrefsEditor.commit();
}
if (TextUtils.isEmpty(email) || TextUtils.isEmpty(password)) {
memail.setHint(getString(R.string.ENTERYOUREMAIL));
memail.setHintTextColor(RED);
mpass.setHint(getString(R.string.ENTERYOURPASSWORD));
mpass.setHintTextColor(RED);
} else {
mAuth.signInWithEmailAndPassword(email, password)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
// Sign in success, update UI with the signed-in user's information
Log.d(TAG, "signInWithEmail:success");
FirebaseUser user = mAuth.getCurrentUser();
startActivity(new Intent(Login.this, MainActivity.class));
finish();
} else {
// If sign in fails, display a message to the user.
Log.w(TAG, "signInWithEmail:failure", task.getException());
Toast.makeText(Login.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
}
}
});
}
}
private void ResetPassword() {
FirebaseAuth auth = FirebaseAuth.getInstance();
String emailAddress;
emailAddress = memail.getText().toString().trim();
auth.sendPasswordResetEmail(emailAddress)
.addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
if (task.isSuccessful()) {
Log.d(TAG, "Email sent.");
}
}
});
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.sign_in_button:
signIn();
break;
}
}
private void signIn() {
Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
startActivityForResult(signInIntent, RC_SIGN_IN);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
if (requestCode == RC_SIGN_IN) {
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
handleSignInResult(result);
}
}
private void handleSignInResult(GoogleSignInResult result) {
if (result.isSuccess()) {
GoogleSignInAccount account = result.getSignInAccount();
firebaseAuthWithGoogle(account);
startActivity(new Intent(Login.this, MainActivity.class));
} else {
// Signed out, show unauthenticated UI.
}
}
private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());
AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
// Sign in success, update UI with the signed-in user's information
Log.d(TAG, "signInWithCredential:success");
FirebaseUser user = mAuth.getCurrentUser();
} else {
// If sign in fails, display a message to the user.
Log.w(TAG, "signInWithCredential:failure", task.getException());
Toast.makeText(Login.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
}
// ...
}
});
}
다음입니다 ****** 내가 이것을 사용할 수 메소드 대신 로그인 활동을 사용합니까? 이것은 firebase 웹 사이트에서 왔습니까?
private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());
AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
// Sign in success, update UI with the signed-in user's information
Log.d(TAG, "signInWithCredential:success");
FirebaseUser user = mAuth.getCurrentUser();
updateUI(user);
} else {
// If sign in fails, display a message to the user.
Log.w(TAG, "signInWithCredential:failure", task.getException());
Toast.makeText(GoogleSignInActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
updateUI(null);
}
// ...
}
});
}