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feat(auth): move snippets from quickstart-android (#287)
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‎auth/app/src/main/java/com/google/firebase/quickstart/auth/AnonymousAuthActivity.java‎

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/**
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* Copyright 2021 Google Inc. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.firebase.quickstart.auth;
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import android.app.Activity;
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import android.os.Bundle;
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import android.util.Log;
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import android.widget.Toast;
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import androidx.annotation.NonNull;
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import com.google.android.gms.tasks.OnCompleteListener;
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import com.google.android.gms.tasks.Task;
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import com.google.firebase.auth.AuthCredential;
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import com.google.firebase.auth.AuthResult;
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import com.google.firebase.auth.EmailAuthProvider;
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import com.google.firebase.auth.FirebaseAuth;
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import com.google.firebase.auth.FirebaseUser;
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/**
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* Activity to demonstrate anonymous login and account linking (with an email/password account).
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*/
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public class AnonymousAuthActivity extends Activity {
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private static final String TAG = "AnonymousAuth";
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// [START declare_auth]
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private FirebaseAuth mAuth;
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// [END declare_auth]
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// [START initialize_auth]
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// Initialize Firebase Auth
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mAuth = FirebaseAuth.getInstance();
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// [END initialize_auth]
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}
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// [START on_start_check_user]
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@Override
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public void onStart() {
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super.onStart();
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// Check if user is signed in (non-null) and update UI accordingly.
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FirebaseUser currentUser = mAuth.getCurrentUser();
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updateUI(currentUser);
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}
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// [END on_start_check_user]
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private void signInAnonymously() {
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// [START signin_anonymously]
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mAuth.signInAnonymously()
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.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
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@Override
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public void onComplete(@NonNull Task<AuthResult> task) {
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if (task.isSuccessful()) {
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// Sign in success, update UI with the signed-in user's information
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Log.d(TAG, "signInAnonymously:success");
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FirebaseUser user = mAuth.getCurrentUser();
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updateUI(user);
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} else {
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// If sign in fails, display a message to the user.
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Log.w(TAG, "signInAnonymously:failure", task.getException());
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Toast.makeText(AnonymousAuthActivity.this, "Authentication failed.",
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Toast.LENGTH_SHORT).show();
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updateUI(null);
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}
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}
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});
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// [END signin_anonymously]
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}
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private void linkAccount() {
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AuthCredential credential = EmailAuthProvider.getCredential("", "");
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// [START link_credential]
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mAuth.getCurrentUser().linkWithCredential(credential)
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.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
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@Override
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public void onComplete(@NonNull Task<AuthResult> task) {
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if (task.isSuccessful()) {
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Log.d(TAG, "linkWithCredential:success");
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FirebaseUser user = task.getResult().getUser();
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updateUI(user);
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} else {
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Log.w(TAG, "linkWithCredential:failure", task.getException());
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Toast.makeText(AnonymousAuthActivity.this, "Authentication failed.",
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Toast.LENGTH_SHORT).show();
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updateUI(null);
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}
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}
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});
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// [END link_credential]
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}
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private void updateUI(FirebaseUser user) {
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}
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}

‎auth/app/src/main/java/com/google/firebase/quickstart/auth/CustomAuthActivity.java‎

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/**
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* Copyright Google Inc. All Rights Reserved.
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* <p/>
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* <p/>
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* http://www.apache.org/licenses/LICENSE-2.0
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* <p/>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.firebase.quickstart.auth;
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import android.app.Activity;
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import android.os.Bundle;
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import android.util.Log;
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import android.widget.Toast;
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import androidx.annotation.NonNull;
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import com.google.android.gms.tasks.OnCompleteListener;
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import com.google.android.gms.tasks.Task;
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import com.google.firebase.auth.AuthResult;
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import com.google.firebase.auth.FirebaseAuth;
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import com.google.firebase.auth.FirebaseUser;
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/**
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* Demonstrate Firebase Authentication using a custom minted token. For more information, see:
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* https://firebase.google.com/docs/auth/android/custom-auth
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*/
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public class CustomAuthActivity extends Activity {
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private static final String TAG = "CustomAuthActivity";
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private String mCustomToken;
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// [START declare_auth]
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private FirebaseAuth mAuth;
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// [END declare_auth]
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// [START initialize_auth]
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// Initialize Firebase Auth
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mAuth = FirebaseAuth.getInstance();
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// [END initialize_auth]
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}
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// [START on_start_check_user]
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@Override
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public void onStart() {
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super.onStart();
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// Check if user is signed in (non-null) and update UI accordingly.
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FirebaseUser currentUser = mAuth.getCurrentUser();
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updateUI(currentUser);
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}
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// [END on_start_check_user]
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private void startSignIn() {
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// [START sign_in_custom]
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mAuth.signInWithCustomToken(mCustomToken)
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.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
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@Override
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public void onComplete(@NonNull Task<AuthResult> task) {
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if (task.isSuccessful()) {
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// Sign in success, update UI with the signed-in user's information
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Log.d(TAG, "signInWithCustomToken:success");
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FirebaseUser user = mAuth.getCurrentUser();
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updateUI(user);
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} else {
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// If sign in fails, display a message to the user.
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Log.w(TAG, "signInWithCustomToken:failure", task.getException());
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Toast.makeText(CustomAuthActivity.this, "Authentication failed.",
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Toast.LENGTH_SHORT).show();
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updateUI(null);
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}
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}
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});
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// [END sign_in_custom]
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}
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private void updateUI(FirebaseUser user) {
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}
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}

‎auth/app/src/main/java/com/google/firebase/quickstart/auth/EmailPasswordActivity.java‎

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/**
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* Copyright 2021 Google Inc. All Rights Reserved.
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* <p>
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* <p>
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* http://www.apache.org/licenses/LICENSE-2.0
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* <p>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.firebase.quickstart.auth;
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import android.app.Activity;
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import android.os.Bundle;
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import android.util.Log;
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import android.widget.Toast;
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import androidx.annotation.NonNull;
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import com.google.android.gms.tasks.OnCompleteListener;
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import com.google.android.gms.tasks.Task;
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import com.google.firebase.auth.AuthResult;
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import com.google.firebase.auth.FirebaseAuth;
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import com.google.firebase.auth.FirebaseUser;
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public class EmailPasswordActivity extends Activity {
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private static final String TAG = "EmailPassword";
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// [START declare_auth]
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private FirebaseAuth mAuth;
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// [END declare_auth]
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// [START initialize_auth]
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// Initialize Firebase Auth
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mAuth = FirebaseAuth.getInstance();
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// [END initialize_auth]
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}
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// [START on_start_check_user]
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@Override
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public void onStart() {
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super.onStart();
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// Check if user is signed in (non-null) and update UI accordingly.
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FirebaseUser currentUser = mAuth.getCurrentUser();
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if(currentUser != null){
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reload();
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}
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}
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// [END on_start_check_user]
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private void createAccount(String email, String password) {
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// [START create_user_with_email]
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mAuth.createUserWithEmailAndPassword(email, password)
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.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
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@Override
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public void onComplete(@NonNull Task<AuthResult> task) {
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if (task.isSuccessful()) {
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// Sign in success, update UI with the signed-in user's information
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Log.d(TAG, "createUserWithEmail:success");
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FirebaseUser user = mAuth.getCurrentUser();
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updateUI(user);
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} else {
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// If sign in fails, display a message to the user.
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Log.w(TAG, "createUserWithEmail:failure", task.getException());
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Toast.makeText(EmailPasswordActivity.this, "Authentication failed.",
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Toast.LENGTH_SHORT).show();
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updateUI(null);
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}
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}
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});
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// [END create_user_with_email]
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}
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private void signIn(String email, String password) {
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// [START sign_in_with_email]
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mAuth.signInWithEmailAndPassword(email, password)
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.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
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@Override
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public void onComplete(@NonNull Task<AuthResult> task) {
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if (task.isSuccessful()) {
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// Sign in success, update UI with the signed-in user's information
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Log.d(TAG, "signInWithEmail:success");
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FirebaseUser user = mAuth.getCurrentUser();
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updateUI(user);
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} else {
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// If sign in fails, display a message to the user.
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Log.w(TAG, "signInWithEmail:failure", task.getException());
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Toast.makeText(EmailPasswordActivity.this, "Authentication failed.",
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Toast.LENGTH_SHORT).show();
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updateUI(null);
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}
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}
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});
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// [END sign_in_with_email]
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}
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private void sendEmailVerification() {
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// Send verification email
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// [START send_email_verification]
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final FirebaseUser user = mAuth.getCurrentUser();
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user.sendEmailVerification()
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.addOnCompleteListener(this, new OnCompleteListener<Void>() {
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@Override
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public void onComplete(@NonNull Task<Void> task) {
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// Email sent
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}
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});
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// [END send_email_verification]
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}
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private void reload() { }
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private void updateUI(FirebaseUser user) {
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}
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}

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