Java Code Examples for com.google.firebase.auth.FirebaseAuth#AuthStateListener

@ReactMethod
public void listenForAuth() {
  mAuthListener = new FirebaseAuth.AuthStateListener() {

  @Override
  public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
      WritableMap msgMap = Arguments.createMap();
      msgMap.putString("eventName", "listenForAuth");

      if (firebaseAuth.getCurrentUser() != null) {
          WritableMap userMap = getUserMap();

          msgMap.putBoolean("authenticated", true);
          msgMap.putMap("user", userMap);

          FirestackUtils.sendEvent(mReactContext, "listenForAuth", msgMap);
      } else {
          msgMap.putBoolean("authenticated", false);
          FirestackUtils.sendEvent(mReactContext, "listenForAuth", msgMap);
      }
      }
    };

    mAuth = FirebaseAuth.getInstance();
    mAuth.addAuthStateListener(mAuthListener);
  }
 

/**
 * @param emitter
 */
@Override
public void subscribe(final ObservableEmitter<FirebaseAuth> emitter) {
    final FirebaseAuth.AuthStateListener listener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            if (!emitter.isDisposed()) {
                emitter.onNext(firebaseAuth);
            }
        }
    };

    instance.addAuthStateListener(listener);

    emitter.setDisposable(Disposables.fromAction(new Action() {
        @Override
        public void run() throws Exception {
            instance.removeAuthStateListener(listener);
        }
    }));
}
 

public FirebaseAuthManager() {
    super();
    mAuth = FirebaseAuth.getInstance();
    mAuthListener = new FirebaseAuth.AuthStateListener() {

        @Override
        public final void onAuthStateChanged(final @NonNull FirebaseAuth firebaseAuth) {
            final FirebaseUser _user = firebaseAuth.getCurrentUser();

            if (_user != null) {
                // User is signed in
                user = _user;
            } else {
                // User is signed out
                user = null;
            }

            if (authStateListener != null) authStateListener.onAuthorized(_user != null);
        }
    };
}
 

private void firebaseInit() {

        mAuth = FirebaseAuth.getInstance();
        mAuthListener = new FirebaseAuth.AuthStateListener() {

            @Override
            public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
                if (FirebaseAuth.getInstance().getCurrentUser() == null) {
                    Intent loginIntent = new Intent(MainActivity.this, LoginActivity.class);
                    loginIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
                    startActivity(loginIntent);
                }//if there is no curreent user then only move to liginActivity
            }
        };
        mDatabase = FirebaseDatabase.getInstance().getReference().child("Blog");
        mDatabaseUsers = FirebaseDatabase.getInstance().getReference().child("Users");
        mDBRefSetup = FirebaseDatabase.getInstance().getReference().child("Users");
        mDatabaseLike = FirebaseDatabase.getInstance().getReference().child("Likes");
        mDatabaseLike.keepSynced(true);
        mDatabaseUsers.keepSynced(true);
        mDatabase.keepSynced(true);
    }
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    for (String provider : AuthUI.SUPPORTED_PROVIDERS) {
        Log.v(this.getClass().getName(), provider);
    }

    mAuth = FirebaseAuth.getInstance();
    mDatabase = FirebaseDatabase.getInstance().getReference();
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            updateInfo();
        }
    };

    startActivityForResult(
            AuthUI.getInstance()
                    .createSignInIntentBuilder()
                    .setIsSmartLockEnabled(false)
                    .setAvailableProviders(providers)
                    .setLogo(R.drawable.stayfit)
                    .build(),
            RC_SIGN_IN);
}
 

@Test
public void testObserveAuthState()  {

    TestSubscriber<FirebaseUser> testSubscriber = new TestSubscriber<>();
    RxFirebaseAuth.observeAuthState(mockAuth)
            .subscribeOn(Schedulers.immediate())
            .subscribe(testSubscriber);

    ArgumentCaptor<FirebaseAuth.AuthStateListener> argument = ArgumentCaptor.forClass(FirebaseAuth.AuthStateListener.class);
    verify(mockAuth).addAuthStateListener(argument.capture());
    argument.getValue().onAuthStateChanged(mockAuth);

    testSubscriber.assertNoErrors();
    testSubscriber.assertValueCount(1);
    testSubscriber.assertReceivedOnNext(Collections.singletonList(mockUser));
    testSubscriber.assertNotCompleted();
    testSubscriber.unsubscribe();
}
 

public void createAuthListener(final OnAuthStateChangeListener onAuthStateChangeListener) {
    Log.d(DEBUG_LOGIN, "createAuthListener");

    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            Log.d(DEBUG_LOGIN, "onAuthStateChanged");

            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                Log.i(DEBUG_LOGIN, "onAuthStateChanged:signed_in:" + user.getUid());

                if (!isEmailUpdated)
                    updateUserEmail(getEmail());

                if (!isUserProfileUpdated)
                    updateUserProfile(getFullName(), null);

                onAuthStateChangeListener.onAuthStateChanged(user);

            } else {
                // User is signed out
                Log.i(DEBUG_LOGIN, "onAuthStateChanged:signed_out");

                onAuthStateChangeListener.onAuthStateChanged(null);
            }
        }
    };
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_anonymous_auth);

    // [START initialize_auth]
    mAuth = FirebaseAuth.getInstance();
    // [END initialize_auth]

    // [START auth_state_listener]
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
            } else {
                // User is signed out
                Log.d(TAG, "onAuthStateChanged:signed_out");
            }
            // [START_EXCLUDE]
            updateUI(user);
            // [END_EXCLUDE]
        }
    };
    // [END auth_state_listener]

    // Fields
    mEmailField = (EditText) findViewById(R.id.field_email);
    mPasswordField = (EditText) findViewById(R.id.field_password);

    // Click listeners
    findViewById(R.id.button_anonymous_sign_in).setOnClickListener(this);
    findViewById(R.id.button_anonymous_sign_out).setOnClickListener(this);
    findViewById(R.id.button_link_account).setOnClickListener(this);
}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_emailpassword);

    // Views
    mStatusTextView = (TextView) findViewById(R.id.status);
    mDetailTextView = (TextView) findViewById(R.id.detail);
    mEmailField = (EditText) findViewById(R.id.field_email);
    mPasswordField = (EditText) findViewById(R.id.field_password);

    // Buttons
    findViewById(R.id.email_sign_in_button).setOnClickListener(this);
    findViewById(R.id.email_create_account_button).setOnClickListener(this);
    findViewById(R.id.sign_out_button).setOnClickListener(this);

    // [START initialize_auth]
    mAuth = FirebaseAuth.getInstance();
    // [END initialize_auth]

    // [START auth_state_listener]
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
            } else {
                // User is signed out
                Log.d(TAG, "onAuthStateChanged:signed_out");
            }
            // [START_EXCLUDE]
            updateUI(user);
            // [END_EXCLUDE]
        }
    };
    // [END auth_state_listener]
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_custom);

    // Button click listeners
    findViewById(R.id.button_sign_in).setOnClickListener(this);

    // Create token receiver (for demo purposes only)
    mTokenReceiver = new TokenBroadcastReceiver() {
        @Override
        public void onNewToken(String token) {
            Log.d(TAG, "onNewToken:" + token);
            setCustomToken(token);
        }
    };

    // [START initialize_auth]
    mAuth = FirebaseAuth.getInstance();
    // [END initialize_auth]

    // [START auth_state_listener]
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
            } else {
                // User is signed out
                Log.d(TAG, "onAuthStateChanged:signed_out");
            }
            // [START_EXCLUDE]
            updateUI(user);
            // [END_EXCLUDE]
        }
    };
    // [END auth_state_listener]
}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    FacebookSdk.sdkInitialize(getApplicationContext());
    setContentView(R.layout.activity_facebook);

    // Views
    mStatusTextView = (TextView) findViewById(R.id.status);
    mDetailTextView = (TextView) findViewById(R.id.detail);
    mResponseTextView = (TextView) findViewById(R.id.response);
    findViewById(R.id.button_facebook_signout).setOnClickListener(this);

    // [START initialize_auth]
    // Initialize Firebase Auth
    mAuth = FirebaseAuth.getInstance();
    // [END initialize_auth]

    // [START auth_state_listener]
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
            } else {
                // User is signed out
                Log.d(TAG, "onAuthStateChanged:signed_out");
            }
            // [START_EXCLUDE]
            updateUI(user);
            // [END_EXCLUDE]
        }
    };
    // [END auth_state_listener]

    // [START initialize_fblogin]
    // Initialize Facebook Login button
    mCallbackManager = CallbackManager.Factory.create();
    LoginButton loginButton = (LoginButton) findViewById(R.id.button_facebook_login);
    loginButton.setReadPermissions("email", "public_profile");
    loginButton.registerCallback(mCallbackManager, new FacebookCallback<LoginResult>() {
        @Override
        public void onSuccess(LoginResult loginResult) {
            Log.d(TAG, "facebook:onSuccess:" + loginResult);
            handleFacebookAccessToken(loginResult.getAccessToken());
        }

        @Override
        public void onCancel() {
            Log.d(TAG, "facebook:onCancel");
            // [START_EXCLUDE]
            updateUI(null);
            // [END_EXCLUDE]
        }

        @Override
        public void onError(FacebookException error) {
            Log.d(TAG, "facebook:onError", error);
            // [START_EXCLUDE]
            updateUI(null);
            // [END_EXCLUDE]
        }
    });
    // [END initialize_fblogin]
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_register);

    firebaseAuthStateListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();

            if (user != null) {
                Intent intent = new Intent(getApplication(), MainActivity.class);
                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                startActivity(intent);
                finish();
            }
        }
    };

    mAuth = FirebaseAuth.getInstance();

    mRegister = findViewById(R.id.buttonRegister);

    mEmail = findViewById(R.id.editTextEmailRegister);
    mPassword = findViewById(R.id.editTextPasswordRegister);
    mUsername = findViewById(R.id.editTextUsernameRegister);

    passwordLayout = findViewById(R.id.editTextPasswordRegisterLay);
    emailLayout = findViewById(R.id.editTextEmailRegisterLay);
    usernameLayout = findViewById(R.id.editTextUsernameRegisterLay);

    mPassword.addTextChangedListener(new MyTextWatcher(mPassword));
    mUsername.addTextChangedListener(new MyTextWatcher(mUsername));
    mEmail.addTextChangedListener(new MyTextWatcher(mEmail));

    mRegister.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (!validateEmail()) {
                return;
            }

            if (!validatePassword()) {
                return;
            }

            if (!validateUsername()) {
                return;
            }

            final String username = mUsername.getText().toString();
            final String email = mEmail.getText().toString();
            final String password = mPassword.getText().toString();

            mAuth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(RegisterActivity.this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (!task.isSuccessful()) {
                        Toast.makeText(getApplication(), "Sign in ERROR", Toast.LENGTH_LONG).show();
                    } else {
                        String userId = mAuth.getCurrentUser().getUid();
                        DatabaseReference currentUserDB = FirebaseDatabase.getInstance().getReference().child("users").child(userId);

                        Map userInfo = new HashMap();
                        userInfo.put("email", email);
                        userInfo.put("username", username);
                        userInfo.put("profileImageUrl", "default");

                        currentUserDB.updateChildren(userInfo);
                    }
                }
            });
        }
    });
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_google);

    // Views
    mStatusTextView = (TextView) findViewById(R.id.status);
    mDetailTextView = (TextView) findViewById(R.id.detail);
    mResponseTextView = (TextView) findViewById(R.id.response);

    // Button listeners
    findViewById(R.id.sign_in_button).setOnClickListener(this);
    findViewById(R.id.sign_out_button).setOnClickListener(this);
    findViewById(R.id.disconnect_button).setOnClickListener(this);

    // [START config_signin]
    // Configure Google Sign In
    GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestIdToken(getString(R.string.default_web_client_id))
            .requestEmail()
            .build();
    // [END config_signin]

    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .enableAutoManage(this /* FragmentActivity */, this /* OnConnectionFailedListener */)
            .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
            .build();

    // [START initialize_auth]
    mAuth = FirebaseAuth.getInstance();
    // [END initialize_auth]

    // [START auth_state_listener]
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
            } else {
                // User is signed out
                Log.d(TAG, "onAuthStateChanged:signed_out");
            }
            // [START_EXCLUDE]
            updateUI(user);
            // [END_EXCLUDE]
        }
    };
    // [END auth_state_listener]
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Configure Twitter SDK
    TwitterAuthConfig authConfig =  new TwitterAuthConfig(
            getString(R.string.twitter_consumer_key),
            getString(R.string.twitter_consumer_secret));
    Fabric.with(this, new Twitter(authConfig));

    // Inflate layout (must be done after Twitter is configured)
    setContentView(R.layout.activity_twitter);

    // Views
    mStatusTextView = (TextView) findViewById(R.id.status);
    mDetailTextView = (TextView) findViewById(R.id.detail);
    findViewById(R.id.button_twitter_signout).setOnClickListener(this);

    // [START initialize_auth]
    // Initialize Firebase Auth
    mAuth = FirebaseAuth.getInstance();
    // [END initialize_auth]

    // [START auth_state_listener]
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
            } else {
                // User is signed out
                Log.d(TAG, "onAuthStateChanged:signed_out");
            }
            // [START_EXCLUDE]
            updateUI(user);
            // [END_EXCLUDE]
        }
    };
    // [END auth_state_listener]

    // [START initialize_twitter_login]
    mLoginButton = (TwitterLoginButton) findViewById(R.id.button_twitter_login);
    mLoginButton.setCallback(new Callback<TwitterSession>() {
        @Override
        public void success(Result<TwitterSession> result) {
            Log.d(TAG, "twitterLogin:success" + result);
            handleTwitterSession(result.data);
        }

        @Override
        public void failure(TwitterException exception) {
            Log.w(TAG, "twitterLogin:failure", exception);
            updateUI(null);
        }
    });
    // [END initialize_twitter_login]
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_place_detail);
    //Enable support for vector drawables on Pre-lollipop devices
    AppCompatDelegate.setCompatVectorFromResourcesEnabled(true);

    if (getIntent().getExtras() != null) {
        place_id = getIntent().getStringExtra("place_id");
        place_name = getIntent().getStringExtra("place_name");
        image_URL = getIntent().getStringExtra("image_URL");
        Log.d(TAG, "Image url " + image_URL);
        //Toast.makeText(this, place_id, Toast.LENGTH_SHORT).show();

    }

    // Initialize Firebase components
    mFirebaseAuth = FirebaseAuth.getInstance();
    mFirebaseDatabase = FirebaseDatabase.getInstance();


    //Views and click listeners
    coordinatorLayout = (CoordinatorLayout) findViewById(R.id.activity_place_detail);
    fabFav = (FloatingActionButton) findViewById(R.id.fab_favorite);
    rbRatingBar = (RatingBar) findViewById(R.id.rating);
    tvAddress = (TextView) findViewById(R.id.address);
    llUrlIcon = (LinearLayout) findViewById(R.id.icon_link);
    llCall = (LinearLayout) findViewById(R.id.icon_call);
    llDirections = (LinearLayout) findViewById(R.id.icon_directions);
    llReviews = (LinearLayout) findViewById(R.id.layout_reviews);
    fabFav.setOnClickListener(this);
    llUrlIcon.setOnClickListener(this);
    llCall.setOnClickListener(this);
    llDirections.setOnClickListener(this);

    //Toolbar
    Toolbar toolbar = (Toolbar) findViewById(R.id.app_bar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    CollapsingToolbarLayout collapsingToolbarLayout = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar_layout);
    collapsingToolbarLayout.setTitle(place_name);
    progressBar = (ProgressBar) findViewById(R.id.progressBar);
    mBanner = (ImageView) findViewById(R.id.banner);
    if (image_URL != null && !image_URL.isEmpty()) {
        Picasso.with(this).load(image_URL).fit().into(mBanner);
    }

    //Ui


    final String DOMAIN = Constants.BASE_URL_PLACE_DETAILS;
    final String APPKEY_PARAM = Constants.API_KEY_PARAM;
    final String PLACE_ID_PARAM = Constants.PLACE_ID_PARAM;


    try {
        StringBuilder sb = new StringBuilder(DOMAIN)
                .append(PLACE_ID_PARAM + "=" + place_id)
                .append("&" + APPKEY_PARAM + "=" + Constants.API_VALUE);

        Log.d(TAG, "Place URL built " + sb.toString());

        fetchPlaceDetails(sb.toString());

    } catch (Exception e) {
        Log.e(TAG, "Error building url");
    }

    //Firebase Auth listener
    mAuthStateListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                onSignedInInitialize(user);
            } else {
                // User is signed out
                onSignedOutCleanup();
                //showFirebaseLogin();
            }
        }
    };
}
 

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_new_user);
        username = (EditText) findViewById(R.id.usernameRegistration);
        pass = (EditText) findViewById(R.id.passwordRegistration);
        passVerification = (EditText) findViewById(R.id.passwordRegistrationConfirmation);
        firstname = (EditText) findViewById(R.id.firstName);
        lastname = (EditText) findViewById(R.id.lastName);

        isSeller = getIntent().getExtras().getBoolean("seller");
        if(isSeller){
            ((TextView) findViewById(R.id.userRegistrationPageTitle)).setText("Seller Registration");
        }

        setViews(true);

        progressBar = (ProgressBar) findViewById(R.id.registrationPageProgressBar);

        mAuth = FirebaseAuth.getInstance();
        mAuthListener = new FirebaseAuth.AuthStateListener() {
            @Override
            public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
                FirebaseUser user = firebaseAuth.getCurrentUser();
                if (user != null) {
                    // User is signed in
                    Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
                    String name = firstname.getText().toString() + " " + lastname.getText().toString();
                    UserProfileChangeRequest profileChangeRequest = new UserProfileChangeRequest.Builder().
                            setDisplayName(name).build();
                    user.updateProfile(profileChangeRequest);

                    DatabaseReference myRef;

                    if (!isSeller){
                        myRef = FirebaseDatabase.getInstance().getReference("users").child(user.getUid());
                        myRef.child(user.getUid()).push();

                        // As firebase does not accept keys with empty values, I'm putting a dummy item with empty Strings and -1 as ints
                        // Quantity of items in cart is not realtime database quantity but the quantity the user wants
                        ArrayList<ShoppingItem> cart = new ArrayList<>();
                        cart.add(new ShoppingItem("", "", "", "", -1, -1));
                        Map<String, Object> cartItems = new HashMap<>();
                        cartItems.put("cartItems", cart);

                        // Adding a isCartEmpty State Variable for cart window display

                        Map<String, Object> cartState = new HashMap<>();
                        cartState.put("isCartEmpty", Boolean.TRUE);

                        // Updating the database for the user
                        myRef.updateChildren(cartItems);
                        myRef.updateChildren(cartState);
                    } else {
                        myRef = FirebaseDatabase.getInstance().getReference("sellers").child(user.getUid());
                        myRef.child(user.getUid()).push();

//                        Dummy product sold by any seller who has 0 products
                        ArrayList<ShoppingItem> prods = new ArrayList<>();
                        prods.add(new ShoppingItem("", "", "", "", -1, -1));
                        Map<String, Object> prodslist = new HashMap<>();
                        prodslist.put("products", prods);

                        Map<String, Object> state = new HashMap<>();
                        state.put("isEmpty", Boolean.TRUE);

                        // Updating the database for the seller
                        myRef.updateChildren(prodslist);
                        myRef.updateChildren(state);
                    }

                    sendVerificationEmail();

                } else {
                    // User is signed out
                    Log.d(TAG, "onAuthStateChanged:signed_out");
                }
            }
        };

        mRegister = (Button) findViewById(R.id.registerButton);
        mRegister.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                setViews(false);
                email = username.getText().toString();
                password = pass.getText().toString();
                passwordVerification = passVerification.getText().toString();
                if (password.equals(passwordVerification) && !password.equals("") && !passwordVerification.equals("")) {
                    createAccount();
                } else {
                    Snackbar.make(findViewById(R.id.newUserPage), "Passwords don't match", Snackbar.LENGTH_SHORT).show();
                    pass.setText("");
                    passVerification.setText("");
                    setViews(true);
                }
            }
        });
    }
 

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    FacebookSdk.sdkInitialize(getApplicationContext());
    callbackManager = CallbackManager.Factory.create();

    LoginManager.getInstance().registerCallback(callbackManager,
            new FacebookCallback<LoginResult>() {
                @Override
                public void onSuccess(LoginResult loginResult) {

                    // App code
                    MyLg.e(TAG, "Get Facebook User Details");
                    handleFacebookAccessToken(loginResult.getAccessToken());
                }

                @Override
                public void onCancel() {
                    // App code
                    MyLg.e(TAG, "Get Facebook onCancel");
                }

                @Override
                public void onError(FacebookException exception) {
                    // App code
                    MyLg.e(TAG, "Get Facebook onError ");
                    exception.printStackTrace();
                }
            });


    // Configure Google Sign In
    GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestIdToken(getString(R.string.default_web_client_id))
            .requestEmail()
            .build();

    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .enableAutoManage(this, this)
            .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
            .build();

    mAuth = FirebaseAuth.getInstance();
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                MyLg.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
            } else {
                // User is signed out
                MyLg.d(TAG, "onAuthStateChanged:signed_out");
            }

            onGotFirebaseUser(user);
        }
    };
}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    // Set SharedPreferences
    mSharedPreferences = getSharedPreferences(PREFERENCES_NAME, Activity.MODE_PRIVATE);
    // Set a toolbar to replace the actionbar
    toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    // Find drawer view
    mDrawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    // Tie DrawerLayout events to the ActionBarToggle.
    drawerToggle = setupDrawerToggle();
    mDrawer.addDrawerListener(drawerToggle);

    // Attach listener to drawer menuitems and handle user selections.
    NavigationView nvDrawer = (NavigationView) findViewById(R.id.nvView);
    //View drawerHeader = nvDrawer.inflateHeaderView(R.layout.drawer_header);
    setupDrawerContent(nvDrawer);

    mAuth = FirebaseAuth.getInstance();
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            if(firebaseAuth.getCurrentUser() != null) {
                if(getIntent().getExtras() == null) {
                    // Begin transaction
                    FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
                    // Replace the contents of the container with the new fragment
                    ft.replace(R.id.fragment_placeholder, new NewOrderFragment());
                    // Complete the changes added above.
                    ft.commit();
                } else {
                    Bundle extras = getIntent().getExtras();
                    if(extras.containsKey(MyFirebaseMessagingService.NOTIFICATION_TYPE)) {
                        String type = extras.getString(MyFirebaseMessagingService.NOTIFICATION_TYPE);
                        if (type.equals("new") || type.equals("taken")) {
                            saveData(extras.getString(MyFirebaseMessagingService.NOTIFICATION_TIMESTAMP));
                            Class fragmentClass = CurrentOrderFragment.class;
                            Fragment fragment = null;
                            try {
                                fragment = (Fragment) fragmentClass.newInstance();
                            } catch (Exception e) {
                                e.printStackTrace();
                            }
                            FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
                            ft.replace(R.id.fragment_placeholder, fragment);
                            ft.commit();
                        } else if(type.equals("finished")) {
                            saveData(PREFERENCES_EMPTY);
                            // Begin transaction
                            FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
                            // Replace the contents of the container with the new fragment
                            ft.replace(R.id.fragment_placeholder, new ProfileFragment());
                            // Complete the changes added above.
                            ft.commit();
                        }
                    } else {
                        // Begin transaction
                        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
                        // Replace the contents of the container with the new fragment
                        ft.replace(R.id.fragment_placeholder, new NewOrderFragment());
                        // Complete the changes added above.
                        ft.commit();
                    }
                }
            } else {
                finish();
                startActivity(new Intent(MainActivity.this, LoginActivity.class));
            }
        }
    };
}
 

public FirebaseAuth.AuthStateListener getAuthListener() {
    return mAuthListener;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);

    firebaseAuthStateListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();

            if (user != null) {
                Intent intent = new Intent(getApplication(), MainActivity.class);
                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                startActivity(intent);
                finish();
            }
        }
    };

    mAuth = FirebaseAuth.getInstance();

    mLogin = findViewById(R.id.buttonLogin);

    mEmail = findViewById(R.id.editTextEmailLogin);
    mPassword = findViewById(R.id.editTextPasswordLogin);

    emailLayout = findViewById(R.id.editTextEmailLoginLay);
    passwordLayout = findViewById(R.id.editTextPasswordLoginLay);

    mEmail.addTextChangedListener(new MyTextWatcher(mEmail));
    mPassword.addTextChangedListener(new MyTextWatcher(mPassword));

    mLogin.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (!validateEmail()) {
                return;
            }
            
            if (!validatePassword()) {
                return;
            }

            final String email = mEmail.getText().toString();
            final String password = mPassword.getText().toString();

            mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(LoginActivity.this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (!task.isSuccessful()) {
                        Toast.makeText(LoginActivity.this, "Sign in ERROR", Toast.LENGTH_LONG).show();
                    }
                }
            });
        }
    });
}