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Cannot resolve method 'setTimestampsInSnapshotsEnabled' in 'Builder'

I am trying to create a register activity to allow a user to register however I keep getting the error:
Cannot resolve method 'setTimestampsInSnapshotsEnabled' in 'Builder'"
It's only the section which has the setTimestampsInSnapshotsEnabled that is giving me the issue. Do I need an implementation?
Here is my Java code:
public class RegisterActivity extends AppCompatActivity implements View.OnClickListener
{
private static final String TAG = "RegisterActivity";
//widgets
private EditText mEmail, mPassword, mConfirmPassword;
private ProgressBar mProgressBar;
//vars
private FirebaseFirestore mDb;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
mEmail = (EditText) findViewById(R.id.input_email);
mPassword = (EditText) findViewById(R.id.input_password);
mConfirmPassword = (EditText) findViewById(R.id.input_confirm_password);
mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
findViewById(R.id.btn_register).setOnClickListener(this);
mDb = FirebaseFirestore.getInstance();
hideSoftKeyboard();
}
/**
* Register a new email and password to Firebase Authentication
* #param email
* #param password
*/
public void registerNewEmail(final String email, String password){
showDialog();
FirebaseAuth.getInstance().createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(new OnCompleteListener<AuthResult>() {
#Override
public void onComplete(#NonNull Task<AuthResult> task) {
Log.d(TAG, "createUserWithEmail:onComplete:" + task.isSuccessful());
if (task.isSuccessful()){
Log.d(TAG, "onComplete: AuthState: " + FirebaseAuth.getInstance().getCurrentUser().getUid());
//insert some default data
User user = new User();
user.setEmail(email);
user.setUsername(email.substring(0, email.indexOf("#")));
user.setUser_id(FirebaseAuth.getInstance().getUid());
FirebaseFirestoreSettings settings = new FirebaseFirestoreSettings.Builder()
.setTimestampsInSnapshotsEnabled(true)
.build();
mDb.setFirestoreSettings(settings);
FirebaseFirestoreSettings newUserRef = mDb
.collection(getString(R.string.collection_users))
.document(FirebaseAuth.getInstance().getUid());
newUserRef.set(user).addOnCompleteListener(new OnCompleteListener<Void>() {
#Override
public void onComplete(#NonNull Task<Void> task) {
hideDialog();
if(task.isSuccessful()){
redirectLoginScreen();
}else{
View parentLayout = findViewById(android.R.id.content);
Snackbar.make(parentLayout, "Something went wrong.", Snackbar.LENGTH_SHORT).show();
}
}
});
}
else {
View parentLayout = findViewById(android.R.id.content);
Snackbar.make(parentLayout, "Something went wrong.", Snackbar.LENGTH_SHORT).show();
hideDialog();
}
// ...
}
});
}
/**
* Redirects the user to the login screen
*/
private void redirectLoginScreen(){
Log.d(TAG, "redirectLoginScreen: redirecting to login screen.");
Intent intent = new Intent(RegisterActivity.this, LoginActivity.class);
startActivity(intent);
finish();
}
private void showDialog(){
mProgressBar.setVisibility(View.VISIBLE);
}
private void hideDialog(){
if(mProgressBar.getVisibility() == View.VISIBLE){
mProgressBar.setVisibility(View.INVISIBLE);
}
}
private void hideSoftKeyboard(){
this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
}
#Override
public void onClick(View view) {
switch (view.getId()){
case R.id.btn_register:{
Log.d(TAG, "onClick: attempting to register.");
//check for null valued EditText fields
if(!isEmpty(mEmail.getText().toString())
&& !isEmpty(mPassword.getText().toString())
&& !isEmpty(mConfirmPassword.getText().toString())){
//check if passwords match
if(doStringsMatch(mPassword.getText().toString(), mConfirmPassword.getText().toString())){
//Initiate registration task
registerNewEmail(mEmail.getText().toString(), mPassword.getText().toString());
}else{
Toast.makeText(RegisterActivity.this, "Passwords do not Match", Toast.LENGTH_SHORT).show();
}
}else{
Toast.makeText(RegisterActivity.this, "You must fill out all the fields", Toast.LENGTH_SHORT).show();
}
break;
}
}
}
}

If I look at the current documentation for FirebaseFirestoreSettings.Builder, I don't see any setTimestampsInSnapshotsEnabled method. So that probably explains the error message: you're trying to call a method that doesn't exist.
My guess is that your code was meant for an older version of the SDK when the method did exist. Since it doesn't exist anymore now, you either have to use the version of the SDK that the code was made for, or remove the call.
Update: it looks like timestampsInSnapshotsEnabled was removed in version 22 of the Android SDK for Firestore back in October 2020.

How to debug Android code for an unexpected value?

I am new to Android and doing some basic activities on Android Studio. I have the following code which will redirect from LoginActivity to Navigation activity after successful login.
LoginActivity.java code:
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.content.Intent;
/**
* A login screen that offers login via email/password.
*/
public class LoginActivity extends AppCompatActivity implements LoaderCallbacks<Cursor> {
/**
* Id to identity READ_CONTACTS permission request.
*/
private static final int REQUEST_READ_CONTACTS = 0;
/**
* A dummy authentication store containing known user names and passwords.
* TODO: remove after connecting to a real authentication system.
*/
private static final String[] DUMMY_CREDENTIALS = new String[]{
"test#gmail.com:hello"
};
/**
* Keep track of the login task to ensure we can cancel it if requested.
*/
private UserLoginTask mAuthTask = null;
// UI references.
private AutoCompleteTextView mEmailView;
private EditText mPasswordView;
private View mProgressView;
private View mLoginFormView;
private boolean loginPassed;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
// Set up the login form.
mEmailView = (AutoCompleteTextView) findViewById(R.id.email);
populateAutoComplete();
mPasswordView = (EditText) findViewById(R.id.password);
Button mEmailSignInButton = (Button) findViewById(R.id.email_sign_in_button);
mEmailSignInButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
attemptLogin();
}
});
mLoginFormView = findViewById(R.id.login_form);
mProgressView = findViewById(R.id.login_progress);
}
private void populateAutoComplete() {
if (!mayRequestContacts()) {
return;
}
getLoaderManager().initLoader(0, null, this);
}
private boolean mayRequestContacts() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
return true;
}
if (checkSelfPermission(READ_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
return true;
}
if (shouldShowRequestPermissionRationale(READ_CONTACTS)) {
Snackbar.make(mEmailView, R.string.permission_rationale, Snackbar.LENGTH_INDEFINITE)
.setAction(android.R.string.ok, new View.OnClickListener() {
#Override
#TargetApi(Build.VERSION_CODES.M)
public void onClick(View v) {
requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
}
});
} else {
requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
}
return false;
}
/**
* Callback received when a permissions request has been completed.
*/
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions,
#NonNull int[] grantResults) {
if (requestCode == REQUEST_READ_CONTACTS) {
if (grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
populateAutoComplete();
}
}
}
/**
* Attempts to sign in or register the account specified by the login form.
* If there are form errors (invalid email, missing fields, etc.), the
* errors are presented and no actual login attempt is made.
*/
private void attemptLogin() {
if (mAuthTask != null) {
return;
}
// Reset errors.
mEmailView.setError(null);
mPasswordView.setError(null);
// Store values at the time of the login attempt.
String email = mEmailView.getText().toString();
String password = mPasswordView.getText().toString();
boolean cancel = false;
View focusView = null;
// Check for a valid email address.
if (TextUtils.isEmpty(email)) {
mEmailView.setError(getString(R.string.error_field_required));
focusView = mEmailView;
cancel = true;
} else if (!isEmailValid(email)) {
mEmailView.setError(getString(R.string.error_invalid_email));
focusView = mEmailView;
cancel = true;
}
// Check for a valid email address.
if(!cancel) {
if (TextUtils.isEmpty(password)) {
mPasswordView.setError(getString(R.string.error_field_required));
focusView = mPasswordView;
cancel = true;
} else if (!isPasswordValid(password)) {
mPasswordView.setError(getString(R.string.error_invalid_password));
focusView = mPasswordView;
cancel = true;
}
}
if (cancel) {
// There was an error; don't attempt login and focus the first
// form field with an error.
focusView.requestFocus();
} else {
// Show a progress spinner, and kick off a background task to
// perform the user login attempt.
showProgress(true);
mAuthTask = new UserLoginTask(email, password);
mAuthTask.execute((Void) null);
if(loginPassed) {
Intent intent = new Intent(this, NavigationActivity.class);
intent.putExtra(EXTRA_MESSAGE, "Test");
startActivity(intent);
}
}
}
private boolean isEmailValid(String email) {
//TODO: Replace this with your own logic
return email.contains("#");
}
private boolean isPasswordValid(String password) {
//TODO: Replace this with your own logic
return password.length() > 4;
}
/**
* Shows the progress UI and hides the login form.
*/
#TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
private void showProgress(final boolean show) {
// On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
// for very easy animations. If available, use these APIs to fade-in
// the progress spinner.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
mLoginFormView.animate().setDuration(shortAnimTime).alpha(
show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
});
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mProgressView.animate().setDuration(shortAnimTime).alpha(
show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
}
});
} else {
// The ViewPropertyAnimator APIs are not available, so simply show
// and hide the relevant UI components.
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
}
#Override
public Loader<Cursor> onCreateLoader(int i, Bundle bundle) {
return new CursorLoader(this,
// Retrieve data rows for the device user's 'profile' contact.
Uri.withAppendedPath(ContactsContract.Profile.CONTENT_URI,
ContactsContract.Contacts.Data.CONTENT_DIRECTORY), ProfileQuery.PROJECTION,
// Select only email addresses.
ContactsContract.Contacts.Data.MIMETYPE +
" = ?", new String[]{ContactsContract.CommonDataKinds.Email
.CONTENT_ITEM_TYPE},
// Show primary email addresses first. Note that there won't be
// a primary email address if the user hasn't specified one.
ContactsContract.Contacts.Data.IS_PRIMARY + " DESC");
}
#Override
public void onLoadFinished(Loader<Cursor> cursorLoader, Cursor cursor) {
List<String> emails = new ArrayList<>();
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
emails.add(cursor.getString(ProfileQuery.ADDRESS));
cursor.moveToNext();
}
addEmailsToAutoComplete(emails);
}
#Override
public void onLoaderReset(Loader<Cursor> cursorLoader) {
}
private void addEmailsToAutoComplete(List<String> emailAddressCollection) {
//Create adapter to tell the AutoCompleteTextView what to show in its dropdown list.
ArrayAdapter<String> adapter =
new ArrayAdapter<>(LoginActivity.this,
android.R.layout.simple_dropdown_item_1line, emailAddressCollection);
mEmailView.setAdapter(adapter);
}
private interface ProfileQuery {
String[] PROJECTION = {
ContactsContract.CommonDataKinds.Email.ADDRESS,
ContactsContract.CommonDataKinds.Email.IS_PRIMARY,
};
int ADDRESS = 0;
int IS_PRIMARY = 1;
}
/**
* Represents an asynchronous login/registration task used to authenticate
* the user.
*/
public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {
private final String mEmail;
private final String mPassword;
UserLoginTask(String email, String password) {
mEmail = email;
mPassword = password;
}
#Override
protected Boolean doInBackground(Void... params) {
// TODO: attempt authentication against a network service.
try {
// Simulate network access.
Thread.sleep(2000);
} catch (InterruptedException e) {
return false;
}
for (String credential : DUMMY_CREDENTIALS) {
String[] pieces = credential.split(":");
if (pieces[0].equals(mEmail)) {
// Account exists, return true if the password matches.
return pieces[1].equals(mPassword);
}
}
// TODO: register the new account here.
return false;
}
#Override
protected void onPostExecute(final Boolean success) {
mAuthTask = null;
showProgress(false);
loginPassed = success;
if (success) {
finish();
} else {
Toast toast=Toast.makeText(getApplicationContext(),"Please enter valid Email and Password",Toast.LENGTH_SHORT);
toast.setMargin(100,50);
toast.show();
/*mPasswordView.setError(getString(R.string.error_incorrect_password));
mPasswordView.requestFocus();*/
mEmailView.requestFocus();
}
}
#Override
protected void onCancelled() {
mAuthTask = null;
showProgress(false);
}
}
}
loginPassed variable is set to true if the credentials are correct else it will be false.
If I remove if condition in the above program if will redirect to NavigationActivity properly but with if condition in place, it will simple close the application.
Not sure where am I going wrong.

First you have to define a global variable loginPassed
Boolean loginPassed;
Then you have to execute the AsyncTask for check the user credentials like this -
new UserLoginTask().execute();
Now in AsyncTask we will check the user's credentials and make operations accordingly
class UserLoginTask extends AsyncTask<Void, Integer, String>
{
String TAG = getClass().getSimpleName();
protected void onPreExecute (){
super.onPreExecute();
Log.d(TAG + " PreExceute","On pre Exceute......");
}
protected String doInBackground(Void...arg0) {
Log.d(TAG + " DoINBackGround","On doInBackground...");
if(validate(email, password))
loginPassed = true;
else
loginPassed = false;
return "";
}
protected void onProgressUpdate(Integer...a){
super.onProgressUpdate(a);
Log.d(TAG + " onProgressUpdate", "You are in progress update ... " + a[0]);
}
protected void onPostExecute(String result) {
super.onPostExecute(result);
Log.d(TAG + " onPostExecute", "" + result);
if(loginPassed){
Intent intent = new Intent(this, NavigationActivity.class);
intent.putExtra(EXTRA_MESSAGE, "Jefry");
startActivity(intent);
}else{
// There was an error; don't attempt login and focus the first
// form field with an error.
focusView.requestFocus();
}
}
}

You declare the loginPassed var, but never place values in it.
When you create a boolean var the default value is false, them the runtime never enter in this if(loginPassed)

I want to retrieve current logged in user data from firestore but it shows blank where I want to show my data

I am trying to get the current logged in user from the google firestore database
and i saw this same problem in stackoverflow of a user and i used that same method but showing blank in place user details.
Please help me Thanks.
I am earlier using querysnapshot as it gives all the users.
image description here
the image for database is
enter image description here
The code is:
public class UserProfile extends AppCompatActivity {
static final int REQUEST_IMAGE_CAPTURE = 1;
static final int GALLERY_INTENT = 2;
private static final String TAG = "UserProfile";
String UserId;
FirebaseAuth auth;
ImageButton Photo;
ImageView photoview;
TextView name, email, password, phone;
#RequiresApi(api = Build.VERSION_CODES.KITKAT)
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_profile);
if(getSupportActionBar()!=null ){
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
}
DatabaseReference Database = FirebaseDatabase.getInstance().getReference("users");
DatabaseReference DBRef = Database.child("users");
auth = FirebaseAuth.getInstance();
UserId = auth.getCurrentUser().getUid();
FirebaseFirestore mFirestore = FirebaseFirestore.getInstance();
StorageReference mStorage = FirebaseStorage.getInstance().getReference();
FirebaseStorage storage = FirebaseStorage.getInstance();
photoview = (ImageView)findViewById(R.id.photoview);
Photo = (ImageButton)findViewById(R.id.Photoedit);
name = (TextView)findViewById(R.id.username);
email = (TextView)findViewById(R.id.useremail);
password = (TextView)findViewById(R.id.password1);
phone = (TextView)findViewById(R.id.userPhone);
mFirestore.collection("users").document(UserId).get().addOnSuccessListener(new OnSuccessListener<DocumentSnapshot>() {
#Override
public void onSuccess(DocumentSnapshot documentSnapshot) {
String Name = documentSnapshot.getString("Name");
String Email = documentSnapshot.getString("Email");
String Password = documentSnapshot.getString("Password");
String Phone = documentSnapshot.getString("Phone Number");
name.setText(Name);
email.setText(Email);
password.setText(Password);
phone.setText(Phone);
}
});
Photo.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
selectImage();
}
});
}
private void selectImage() {
final CharSequence[] options = { "Take Photo", "Choose from Gallery","Cancel" };
AlertDialog.Builder builder = new AlertDialog.Builder(UserProfile.this);
builder.setTitle("Add Photo!");
builder.setItems(options, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int item) {
if (options[item].equals("Take Photo"))
{
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUEST_IMAGE_CAPTURE);
}
else if (options[item].equals("Choose from Gallery"))
{
Intent intent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, GALLERY_INTENT);
}
else if (options[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap photo = (Bitmap) extras.get("data");
photoview.setImageBitmap(photo);
} else if (requestCode == GALLERY_INTENT && resultCode == RESULT_OK) {
Uri selectedImage = data.getData();
String[] filePath = {MediaStore.Images.Media.DATA};
Cursor c = getContentResolver().query(selectedImage, filePath, null, null, null);
c.moveToFirst();
int columnIndex = c.getColumnIndex(filePath[0]);
String picturePath = c.getString(columnIndex);
c.close();
Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath));
Log.w("path of image ", picturePath + "");
photoview.setImageBitmap(thumbnail);
}
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getItemId() == android.R.id.home) {
Intent i = new Intent(UserProfile.this,category.class);
startActivity(i);
finish();
}
return super.onOptionsItemSelected(item);
}
}
My database structure is
Ramiki(my app name)
So here it is
Ramiki --> users(collection)--> SiQEIDaQJfUBqZBBt1eo(document uid)----> fields(Email, Name, Password, Phone Number).
Well sorry i am not able to give screenshort because i am not allowed by stack overflow 10 points needed.
And my code for writing data in firestore is
public class LoginActivity extends AppCompatActivity implements View.OnClickListener,
GoogleApiClient.OnConnectionFailedListener {
private static final String TAG = "LoginActivity";
private TextInputEditText textInputEditTextName;
private TextInputEditText textInputEditTextEmail;
private TextInputEditText textInputEditTextPassword;
private TextInputEditText textInputEditTextConfirmPassword;
private TextInputEditText textInputEditTextPhone;
private AppCompatButton appCompatButtonRegister;
private AppCompatTextView appCompatTextViewLoginLink;
private FirebaseAuth auth;
private ProgressBar progressBar;
private static final int RC_SIGN_IN = 1;
private GoogleApiClient mGoogleApiClient;
private SignInButton btnSignIn;
private FirebaseFirestore mFirebaseFirestore;
private FirebaseAuth.AuthStateListener authListener;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
auth = FirebaseAuth.getInstance();
mFirebaseFirestore = FirebaseFirestore.getInstance();
FirebaseFirestoreSettings settings = new FirebaseFirestoreSettings.Builder()
.setPersistenceEnabled(true)
.build();
mFirebaseFirestore.setFirestoreSettings(settings);
authListener = new FirebaseAuth.AuthStateListener() {
#Override
public void onAuthStateChanged(#NonNull FirebaseAuth firebaseAuth) {
}
};
btnSignIn = (SignInButton) findViewById(R.id.btn_sign_in);
btnSignIn.setOnClickListener(this);
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();
// Customizing G+ button
btnSignIn.setSize(SignInButton.SIZE_STANDARD);
btnSignIn.setScopes(gso.getScopeArray());
appCompatTextViewLoginLink = (AppCompatTextView) findViewById(R.id.appCompatTextViewLoginLink);
appCompatTextViewLoginLink.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i = new Intent(LoginActivity.this, account.class);
startActivity(i);
finish();
}
});
//if the user is already logged in we will directly start the category activity
if (SavesharedPreferences.getInstance(this).isLoggedIn()) {
finish();
startActivity(new Intent(this, category.class));
finish();
return;
}
findViewById(R.id.appCompatButtonRegister).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String Name = textInputEditTextName.getText().toString().trim();
String Email = textInputEditTextEmail.getText().toString().trim();
String Password = textInputEditTextPassword.getText().toString().trim();
String Phone_Number = textInputEditTextPhone.getText().toString().trim();
String ConfirmPassword = textInputEditTextConfirmPassword.getText().toString().trim();
progressBar.setVisibility(View.VISIBLE);
// Create a new user with a first and last name
Map<String, Object> user = new HashMap<>();
user.put("Name", Name);
user.put("Email", Email);
user.put("Password", Password);
user.put("Phone Number", Phone_Number);
if (TextUtils.isEmpty(Name)) {
textInputEditTextName.setError("Please enter name");
textInputEditTextName.requestFocus();
progressBar.setVisibility(View.GONE);
}
else if (TextUtils.isEmpty(Email)) {
textInputEditTextEmail.setError("Please enter your email");
textInputEditTextEmail.requestFocus();
progressBar.setVisibility(View.GONE);
}
else if (!android.util.Patterns.EMAIL_ADDRESS.matcher(Email).matches()) {
textInputEditTextEmail.setError("Email already exist");
textInputEditTextEmail.requestFocus();
progressBar.setVisibility(View.GONE);
}
else if (TextUtils.isEmpty(Password)) {
textInputEditTextPassword.setError("Enter a password");
textInputEditTextPassword.requestFocus();
progressBar.setVisibility(View.GONE);
}
else if(Password.length() < 7){
textInputEditTextPassword.setError("Paasword must be greater than 7 digits");
textInputEditTextPassword.requestFocus();
progressBar.setVisibility(View.GONE);
}
else if (!textInputEditTextPassword.getText().toString().equals(textInputEditTextConfirmPassword.getText().toString())) {
textInputEditTextPassword.setError("Password Doesn't Match");
textInputEditTextPassword.requestFocus();
progressBar.setVisibility(View.GONE);
}
else {
// Add a new document with a generated ID
mFirebaseFirestore.collection("users")
.add(user)
.addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
#Override
public void onSuccess(DocumentReference documentReference) {
registerUser();
Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
}
})
.addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(#NonNull Exception e) {
Log.w(TAG, "Error adding document", e);
}
});
}
}
});
initViews();
}
#Override
public void onClick(View view) {
int id = view.getId();
switch (id) {
case R.id.btn_sign_in:
signIn();
break;
}
}
private void registerUser() {
final String Name = textInputEditTextName.getText().toString().trim();
final String Email = textInputEditTextEmail.getText().toString().trim();
final String Password = textInputEditTextPassword.getText().toString().trim();
final String Phone_Number = textInputEditTextPhone.getText().toString().trim();
final String ConfirmPassword = textInputEditTextConfirmPassword.getText().toString().trim();
//first we will do the validations
if (TextUtils.isEmpty(Name)) {
textInputEditTextName.setError("Please enter name");
textInputEditTextName.requestFocus();
return;
}
if (TextUtils.isEmpty(Email)) {
textInputEditTextEmail.setError("Please enter your email");
textInputEditTextEmail.requestFocus();
return;
}
if (!android.util.Patterns.EMAIL_ADDRESS.matcher(Email).matches()) {
textInputEditTextEmail.setError("Email already exist");
textInputEditTextEmail.requestFocus();
return;
}
if (TextUtils.isEmpty(Password)) {
textInputEditTextPassword.setError("Enter a password");
textInputEditTextPassword.requestFocus();
return;
}
if(Password.length() < 7 ) {
textInputEditTextPassword.setError("Paasword must be greater than 7 digits");
textInputEditTextPassword.requestFocus();
return;
}
if (TextUtils.isEmpty(ConfirmPassword)) {
textInputEditTextPassword.setError("Password Doesn't Match");
textInputEditTextPassword.requestFocus();
return;
}
progressBar.setVisibility(View.VISIBLE);
//create user
auth.createUserWithEmailAndPassword(Email, Password)
.addOnCompleteListener(LoginActivity.this, new OnCompleteListener<AuthResult>() {
#Override
public void onComplete(#NonNull Task<AuthResult> task) {
Toast.makeText(LoginActivity.this, "Register Successful " + task.isSuccessful(), Toast.LENGTH_SHORT).show();
progressBar.setVisibility(View.GONE);
if (task.isSuccessful()){
sendEmailVerification();
}
// If sign in fails, display a message to the user. If sign in succeeds
// the auth state listener will be notified and logic to handle the
// signed in user can be handled in the listener.
else if (!task.isSuccessful()) {
Toast.makeText(LoginActivity.this, "Authentication failed." + task.getException(),
Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(LoginActivity.this, "Nothing Happens", Toast.LENGTH_SHORT).show();
}
}
});
}
private void sendEmailVerification() {
FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
if(user != null){
user.sendEmailVerification().addOnCompleteListener(new OnCompleteListener<Void>() {
#Override
public void onComplete(#NonNull Task<Void> task) {
if(task.isSuccessful()){
Toast.makeText(LoginActivity.this,"Please Check Your Email For Verification",Toast.LENGTH_LONG).show();
FirebaseAuth.getInstance().signOut();
startActivity(new Intent(LoginActivity.this, account.class));
finish();
}
}
});
}
}
#Override
protected void onResume() {
super.onResume();
progressBar.setVisibility(View.GONE);
}
private void initViews() {
textInputEditTextName = (TextInputEditText) findViewById(R.id.textInputEditTextName);
textInputEditTextEmail = (TextInputEditText) findViewById(R.id.textInputEditTextEmail);
textInputEditTextPassword = (TextInputEditText) findViewById(R.id.textInputEditTextPassword);
textInputEditTextPhone = (TextInputEditText) findViewById(R.id.textInputEditTextPhone);
appCompatTextViewLoginLink = (AppCompatTextView) findViewById(R.id.appCompatTextViewLoginLink);
textInputEditTextConfirmPassword = (TextInputEditText) findViewById(R.id.textInputEditTextConfirmPassword);
appCompatButtonRegister = (AppCompatButton) findViewById(R.id.appCompatButtonRegister);
progressBar = (ProgressBar) findViewById(R.id.progressBar);
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
Toast.makeText(LoginActivity.this, "You Got an Error",Toast.LENGTH_LONG).show();
}
protected void onStart(){
super.onStart();
auth.addAuthStateListener(authListener);
}
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) {
Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
try {
// Google Sign In was successful, authenticate with Firebase
GoogleSignInAccount account = task.getResult(ApiException.class);
firebaseAuthWithGoogle(account);
} catch (ApiException e) {
// Google Sign In failed, update UI appropriately
Log.w(TAG, "Google sign in failed", e);
// ...
}
}
}
private void firebaseAuthWithGoogle(GoogleSignInAccount account) {
Log.d(TAG, "firebaseAuthWithGoogle:" + account.getId());
AuthCredential credential = GoogleAuthProvider.getCredential(account.getIdToken(), null);
auth.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 = auth.getCurrentUser();
} else {
// If sign in fails, display a message to the user.
Log.w(TAG, "signInWithCredential:failure", task.getException());
Toast.makeText(LoginActivity.this, "Authentication Failed", Toast.LENGTH_SHORT).show();
}
// ...
}
});
}
}

This unique id SiQEIDaQJfUBqZBBt1eo is generated when you are adding the user as a Map or when you are using a call to document() method without passing an argument.
In order to solve this, there are two ways. One would be to create a model class (UserModel), then create an object of that class and in the end get the uid of the user once it authenticated and add the object to the database like this:
String Name = textInputEditTextName.getText().toString().trim();
String Email = textInputEditTextEmail.getText().toString().trim();
String Password = textInputEditTextPassword.getText().toString().trim();
String Phone_Number = textInputEditTextPhone.getText().toString().trim();
String ConfirmPassword = textInputEditTextConfirmPassword.getText().toString().trim();
UserModel userModel = new UserModel(Name, Email, Password, Phone_Number, ConfirmPassword);
String uid = FirebaseAuth.getInstance().getCurrentUser().getUid();
FirebaseFirestore rootRef = FirebaseFirestore.getInstance();
CollectionReference usersRef = rootRef.collection("users");
usersRef.document(uid).set(userModel);
See, I have passed the uid as argument to the document() method.
The second approach would be to pass no argument to the document() method but to store that key into a variable like this:
String key = usersRef.document().getKey();
usersRef.document(key).set(userModel);
Edit:
There also another method, which I recommend you use it. Instead of using this line of code:
mFirebaseFirestore.collection("users")
.add(user)
.addOnSuccessListener(/* ... */)
Use the following line of code:
mFirebaseFirestore.collection("users")
.document(uid)
.set(user)
.addOnSuccessListener(/* ... */)
Remove the old data, add fresh one and your problem will be solved.

Firebase user display name won't show on activity after creating new Firebase email password user account?

I make an sign up activity to create new user on Firebase using Simple Email Password shown below
CreateAccountActivity
public class CreateAccountActivity extends AppCompatActivity {
private ProgressDialog mprogress;
private RelativeLayout signUpactivity;
FirebaseUser user;
private Button msignUp;
public EditText mName,mEmail,mPassword,mCon_Password,mschl_name;
Spinner gender;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_creat_acc);
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
mAuth = FirebaseAuth.getInstance();
mprogress = new ProgressDialog(this);
msignUp = (Button) findViewById(R.id.signUp);
signUpactivity = (RelativeLayout) findViewById(R.id.activity_signUp);
mName = (EditText) findViewById(R.id.namefield);
mEmail = (EditText) findViewById(R.id.emailField);
mPassword = (EditText) findViewById(R.id.passwordField);
mschl_name = (EditText) findViewById(R.id.sname);
String[] option = new String[]{
"Male", "Female"
};
gender = (Spinner) findViewById(R.id.gender);
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, option);
arrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
gender.setAdapter(arrayAdapter);
msignUp.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(isNetworkAvailable()){
mprogress.setMessage("Creating Account...");
mprogress.show();
mprogress.setCanceledOnTouchOutside(false);
mprogress.setCancelable(false);
createAccount();
}else{
Snackbar.make(signUpactivity, "Network UnAvailable", Snackbar.LENGTH_SHORT).show();
}
}
});
}
private boolean isNetworkAvailable() {
ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = manager.getActiveNetworkInfo();
return networkInfo != null && networkInfo.isConnected();
}
View focusview = null;
boolean cancel = false;
private void createAccount(){
final String name = mName.getText().toString();
String email = mEmail.getText().toString();
String password = mPassword.getText().toString();
final String gendertxt = gender.getSelectedItem().toString();
final String schl_name = mschl_name.getText().toString();
String edu_email = email+"#edutree.com";
if (isNetworkAvailable()){
mAuth.createUserWithEmailAndPassword(edu_email,password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
#Override
public void onComplete(Task<AuthResult> task) {
if(task.isSuccessful()){
user = FirebaseAuth.getInstance().getCurrentUser();
String user_email = user.getEmail();
String gendertxt = gender.getSelectedItem().toString();
UserProfileChangeRequest profileChangeRequest = new UserProfileChangeRequest.Builder().setDisplayName(name).build();
user.updateProfile(profileChangeRequest).addOnCompleteListener(new OnCompleteListener<Void>() {
#Override
public void onComplete(Task<Void> task) {
if(task.isSuccessful()){
Log.d("Profile", "User Profile Updated successfully");
FirebaseCrash.log("Profile Updated");
}else {
Log.d("Error","error while updating profile");
FirebaseCrash.log("Error while updating profile");
}
}
});
mprogress.dismiss();
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
Intent intent = new Intent(CreateAccountActivity.this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
overridePendingTransition(R.anim.fade_in, R.anim.fade_out);
Toast.makeText(CreateAccountActivity.this, "Welcome "+ FirebaseAuth.getInstance().getCurrentUser().getEmail(), Toast.LENGTH_LONG).show();
}
},500);
}else{
Snackbar.make(signUpactivity, "Error occurred" , Snackbar.LENGTH_SHORT).show();
mprogress.dismiss();
}
}
});
}else {
Snackbar.make(signUpactivity, "Network UnAvailable", Snackbar.LENGTH_SHORT).show();
mprogress.dismiss();
}
}
}
When user enters the information it start method CreateAccount() and then when task is successful it updates user profile and set the display name and Starts the MainActivity. but it starts the MainActivty its not showing the user name.
MainActivity
Can Anyone help me to fix this problem, and when user get sign out and sign in again then it shows the name otherwise it didn't show after Sign up.
Any Answers were highly appreciated

You need to move the code that starts MainActivity to inside the onComplete() method for the profile change. Right now your code starts the Firebase user profile change to store the display name, but it shows MainActivity before that user profile change is completed.
You can update this piece of your code, look at what I added at the end of the onComplete() method:
user.updateProfile(profileChangeRequest).addOnCompleteListener(new OnCompleteListener<Void>() {
#Override
public void onComplete(Task<Void> task) {
if(task.isSuccessful()){
Log.d("Profile", "User Profile Updated successfully");
FirebaseCrash.log("Profile Updated");
}else {
Log.d("Error","error while updating profile");
FirebaseCrash.log("Error while updating profile");
}
mprogress.dismiss();
Intent intent = new Intent(CreateAccountActivity.this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
overridePendingTransition(R.anim.fade_in, R.anim.fade_out);
Toast.makeText(CreateAccountActivity.this, "Welcome "+ FirebaseAuth.getInstance().getCurrentUser().getEmail(), Toast.LENGTH_LONG).show();
}
});
Then, you can remove this code later in the function:
mprogress.dismiss();
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
Intent intent = new Intent(CreateAccountActivity.this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
overridePendingTransition(R.anim.fade_in, R.anim.fade_out);
Toast.makeText(CreateAccountActivity.this, "Welcome "+ FirebaseAuth.getInstance().getCurrentUser().getEmail(), Toast.LENGTH_LONG).show();
}
},500);

Android app Register with SQL

I'm currently making a quiz app, and I want to add a feature where users can register, and then use SQL to store this. I have followed this YouTube tutorial:
https://www.youtube.com/watch?v=NT1qxmqH1eM
However, when I have register a new user and try to login with this, it says "invalid password". So the data isn't being stored...
Home.java
Looks like this:
The code for Home.java is:
public class Home extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
Button btnSignIn = (Button) findViewById(R.id.buttonSignIN);
Button btnSignUp = (Button) findViewById(R.id.buttonSignUP);
btnSignIn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intentSignIN = new Intent(Home.this, LoginActivity.class);
startActivity(intentSignIN);
}
});
btnSignUp.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intentSignUP = new Intent(Home.this, Register.class);
startActivity(intentSignUP);
}
});
}
}
Pressing the SIGN UP button takes you to Register.java which looks like this:
The code for Register.java is:
public class Register extends Activity {
LoginDataBaseAdapter helper = new LoginDataBaseAdapter(this);
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
}
public void onRegisterClick(View v)
{
if (v.getId() == R.id.register_complete) //changed from xml in activity_home which has id buttonSignUP
{
EditText email = (EditText)findViewById(R.id.editEmail);
EditText pass1 = (EditText)findViewById(R.id.editTextPassword);
EditText pass2 = (EditText)findViewById(R.id.editTextConfirmPassword);
String emailstr = email.getText().toString();
String pass1str = pass1.getText().toString();
String pass2str = pass2.getText().toString();
if (!pass1str.equals(pass2str))
{
//popup message
Toast pass = Toast.makeText(Register.this, "Passwords don't match!", Toast.LENGTH_SHORT);
pass.show();
}
else
{
//insert input in database
UserInfo u = new UserInfo();
u.setEmail(emailstr);
u.setPass(pass1str);
helper.insertUserInfo(u);
}
Intent registerIntent = new Intent(Register.this, Home.class);
startActivity(registerIntent);
}
}
}
I'm able to enter the details, click "complete registration" which then takes me back to Home.java. However, when I try to log in with a newly registered user, it's says that password is unknown. I guess it means the register data isn't then properly stored, but I can't figure out where I've gone wrong.
LoginActivity.java
I have used the template provided by Android Studio so most of this code isn't written by me. However, I have commented the code that I have added to it in order to create this database:
public class LoginActivity extends AppCompatActivity implements LoaderCallbacks<Cursor> {
LoginDataBaseAdapter helper = new LoginDataBaseAdapter(this); //FOR THE REGISTER DATABASE
/**
* Id to identity READ_CONTACTS permission request.
*/
private static final int REQUEST_READ_CONTACTS = 0;
/**
* A dummy authentication store containing known user names and passwords.
* TODO: remove after connecting to a real authentication system.
*/
private static final String[] DUMMY_CREDENTIALS = new String[]{
"foo#example.com:hello", "bar#example.com:world"
};
private User myUser;
/**
* Keep track of the login task to ensure we can cancel it if requested.
*/
private UserLoginTask mAuthTask = null;
// UI references.
private AutoCompleteTextView mEmailView;
private EditText mPasswordView;
private View mProgressView;
private View mLoginFormView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
// Set up the login form.
mEmailView = (AutoCompleteTextView) findViewById(R.id.email);
populateAutoComplete();
mPasswordView = (EditText) findViewById(R.id.password);
mPasswordView.setOnEditorActionListener(new TextView.OnEditorActionListener() {
#Override
public boolean onEditorAction(TextView textView, int id, KeyEvent keyEvent) {
if (id == R.id.login || id == EditorInfo.IME_NULL) {
attemptLogin();
return true;
}
return false;
}
});
Button mEmailSignInButton = (Button) findViewById(R.id.email_sign_in_button);
mEmailSignInButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
attemptLogin();
}
});
mLoginFormView = findViewById(R.id.login_form);
mProgressView = findViewById(R.id.login_progress);
}
public void onRegisterClick(View v){ //FOR THE REGISTER DATABASE (this method)
EditText a = (EditText)findViewById(R.id.email);
String str = a.getText().toString();
EditText b = (EditText)findViewById(R.id.password);
String pass = b.getText().toString();
String password = helper.searchPass(str);
if (pass.equals(password)){
Intent i = new Intent(LoginActivity.this, Play.class);
i.putExtra("Username", str);
startActivity(i);
}
else {
Toast temp = Toast.makeText(LoginActivity.this, "Username and password don't match!", Toast.LENGTH_SHORT);
temp.show();
}
}
private void populateAutoComplete() {
if (!mayRequestContacts()) {
return;
}
getLoaderManager().initLoader(0, null, this);
}
private boolean mayRequestContacts() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
return true;
}
if (checkSelfPermission(READ_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
return true;
}
if (shouldShowRequestPermissionRationale(READ_CONTACTS)) {
Snackbar.make(mEmailView, R.string.permission_rationale, Snackbar.LENGTH_INDEFINITE)
.setAction(android.R.string.ok, new View.OnClickListener() {
#Override
#TargetApi(Build.VERSION_CODES.M)
public void onClick(View v) {
requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
}
});
} else {
requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
}
return false;
}
/**
* Callback received when a permissions request has been completed.
*/
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions,
#NonNull int[] grantResults) {
if (requestCode == REQUEST_READ_CONTACTS) {
if (grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
populateAutoComplete();
}
}
}
/**
* Attempts to sign in or register the account specified by the login form.
* If there are form errors (invalid email, missing fields, etc.), the
* errors are presented and no actual login attempt is made.
*/
private void attemptLogin() {
if (mAuthTask != null) {
return;
}
// Reset errors.
mEmailView.setError(null);
mPasswordView.setError(null);
// Store values at the time of the login attempt.
String email = mEmailView.getText().toString();
String password = mPasswordView.getText().toString();
boolean cancel = false;
View focusView = null;
// Check for a valid password, if the user entered one.
if (!TextUtils.isEmpty(password) && !isPasswordValid(password)) {
mPasswordView.setError(getString(R.string.error_invalid_password));
focusView = mPasswordView;
cancel = true;
}
// Check for a valid email address.
if (TextUtils.isEmpty(email)) {
mEmailView.setError(getString(R.string.error_field_required));
focusView = mEmailView;
cancel = true;
} else if (!isEmailValid(email)) {
mEmailView.setError(getString(R.string.error_invalid_email));
focusView = mEmailView;
cancel = true;
}
if (cancel) {
// There was an error; don't attempt login and focus the first
// form field with an error.
focusView.requestFocus();
} else {
// Show a progress spinner, and kick off a background task to
// perform the user login attempt.
showProgress(true);
mAuthTask = new UserLoginTask(email, password);
mAuthTask.execute((Void) null);
}
}
private boolean isEmailValid(String email) {
//TODO: Replace this with your own logic
return email.contains("#");
}
private boolean isPasswordValid(String password) {
//TODO: Replace this with your own logic
return password.length() > 4;
}
/**
* Shows the progress UI and hides the login form.
*/
#TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
private void showProgress(final boolean show) {
// On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
// for very easy animations. If available, use these APIs to fade-in
// the progress spinner.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
mLoginFormView.animate().setDuration(shortAnimTime).alpha(
show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
});
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mProgressView.animate().setDuration(shortAnimTime).alpha(
show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
}
});
} else {
// The ViewPropertyAnimator APIs are not available, so simply show
// and hide the relevant UI components.
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
}
#Override
public Loader<Cursor> onCreateLoader(int i, Bundle bundle) {
return new CursorLoader(this,
// Retrieve data rows for the device user's 'profile' contact.
Uri.withAppendedPath(ContactsContract.Profile.CONTENT_URI,
ContactsContract.Contacts.Data.CONTENT_DIRECTORY), ProfileQuery.PROJECTION,
// Select only email addresses.
ContactsContract.Contacts.Data.MIMETYPE +
" = ?", new String[]{ContactsContract.CommonDataKinds.Email
.CONTENT_ITEM_TYPE},
// Show primary email addresses first. Note that there won't be
// a primary email address if the user hasn't specified one.
ContactsContract.Contacts.Data.IS_PRIMARY + " DESC");
}
#Override
public void onLoadFinished(Loader<Cursor> cursorLoader, Cursor cursor) {
List<String> emails = new ArrayList<>();
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
emails.add(cursor.getString(ProfileQuery.ADDRESS));
cursor.moveToNext();
}
addEmailsToAutoComplete(emails);
}
#Override
public void onLoaderReset(Loader<Cursor> cursorLoader) {
}
private void addEmailsToAutoComplete(List<String> emailAddressCollection) {
//Create adapter to tell the AutoCompleteTextView what to show in its dropdown list.
ArrayAdapter<String> adapter =
new ArrayAdapter<>(LoginActivity.this,
android.R.layout.simple_dropdown_item_1line, emailAddressCollection);
mEmailView.setAdapter(adapter);
}
private interface ProfileQuery {
String[] PROJECTION = {
ContactsContract.CommonDataKinds.Email.ADDRESS,
ContactsContract.CommonDataKinds.Email.IS_PRIMARY,
};
int ADDRESS = 0;
int IS_PRIMARY = 1;
}
/**
* Represents an asynchronous login/registration task used to authenticate
* the user.
*/
public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {
private final String mEmail;
private final String mPassword;
UserLoginTask(String email, String password) {
mEmail = email;
mPassword = password;
}
#Override
protected Boolean doInBackground(Void... params) {
DBTools dbTools=null;
// TODO: attempt authentication against a network service.
try {
// Simulate network access.
Thread.sleep(2000);
} catch (InterruptedException e) {
return false;
}
for (String credential : DUMMY_CREDENTIALS) {
String[] pieces = credential.split(":");
if (pieces[0].equals(mEmail)) {
// Account exists, return true if the password matches.
return pieces[1].equals(mPassword);
}
}
// TODO: register the new account here.
return false; //changed
}
#Override
protected void onPostExecute(final Boolean success) {
mAuthTask = null;
showProgress(false);
if (success) { ///if successful login
finish();
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
LoginActivity.this.startActivity(intent);
} else {
mPasswordView.setError(getString(R.string.error_incorrect_password));
mPasswordView.requestFocus();
}
}
#Override
protected void onCancelled() {
mAuthTask = null;
showProgress(false);
}
}
}
LoginDataBaseAdapter.java
public class LoginDataBaseAdapter extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
private static final String DATABASE_NAME = "userinfo.db";
private static final String TABLE_NAME = "userinfo";
private static final String COLUMN_EMAIL = "email";
private static final String COLUMN_PASS = "pass";
SQLiteDatabase db;
private static final String TABLE_CREATE = "create table userinfo (email text not null, pass text not null);";
public LoginDataBaseAdapter(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(TABLE_CREATE);
this.db = db;
}
public void insertUserInfo(UserInfo u) {
db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(COLUMN_EMAIL, u.getEmail());
values.put(COLUMN_PASS, u.getPass());
db.insert(TABLE_NAME, null, values);
db.close();
}
public String searchPass(String email) {
db = this.getReadableDatabase();
String query = "select email, pass from " + TABLE_NAME;
Cursor cursor = db.rawQuery(query, null);
String a, b;
b = "not found";
if(cursor.moveToFirst()) {
do{
a = cursor.getString(0);
b = cursor.getString(1);
if(a.equals(email)) {
b = cursor.getString(1);
break;
}
}
while(cursor.moveToNext());
}
return b;
}
#Override
public void onUpgrade (SQLiteDatabase db, int oldVersion, int newVersion) {
String query = "DROP TABLE IF EXISTS "+TABLE_NAME;
db.execSQL(query);
this.onCreate(db);
}
}
UserInfo.java
public class UserInfo {
String email, pass;
public void setEmail(String email)
{
this.email = email;
}
public String getEmail()
{
return this.email;
}
public void setPass(String pass)
{
this.pass = pass;
}
public String getPass()
{
return this.pass;
}
}
I'm new to programming, and I'm doing this for a school project, so a detailed explanation would be helpful. Thanks!

I do not have a specfic answer for your issue but one thing that would help is to check the SQLite database for the username and password after inserting the values. By checking the the values on the database you can see if the values that were recorded for the username. One easy way of checking the database is by using stetho which enables chrome developer tools, among them the ability to see the database.
To add stetho to your app, just add compile 'com.facebook.stetho:stetho:1.4.2' to your dependencies in the app gradle file.
And once the app loads gchrome://inspect/#devices to show the devices and then select your app.
After that you can see the contents of the database