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我在我的應用程序中集成了2種類型的註冊選項。一個帶有電子郵件和其他與Facebook。我已經成功整合了它們，但我無法知道用戶是否使用Facebook或電子郵件註冊，以便我可以相應地進行操作。如何知道用戶是否使用電子郵件或Facebook註冊？
這裏是我的代碼：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sign_up);
userName = (EditText) findViewById(R.id.userName);
userEmail = (EditText) findViewById(R.id.userEmail);
userPassword = (EditText) findViewById(R.id.userPassword);
userPasswordAgain = (EditText) findViewById(R.id.userPasswordAgain);
signUpBtn = (AppCompatButton) findViewById(R.id.btnSignup);
coordinatorLayout = (CoordinatorLayout) findViewById(R.id.coordinatorLayout);
progressDialog = new ProgressDialog(SignUpActivity.this);
FacebookSdk.sdkInitialize(getApplicationContext());
AppEventsLogger.activateApp(this);
callbackManager = CallbackManager.Factory.create();
LoginButton loginButton = (LoginButton) findViewById(R.id.login_button);
loginButton.setReadPermissions("email", "user_friends", "public_profile");
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
Log.d("facebookLogin", "facebook:onSuccess:" + loginResult);
handleFacebookAccessToken(loginResult.getAccessToken());
}
@Override
public void onCancel() {
Log.d("facebookLogin", "facebook:onCancel");
}
@Override
public void onError(FacebookException error) {
Snackbar snackbar = Snackbar
.make(coordinatorLayout, error.getMessage(), Snackbar.LENGTH_SHORT);
snackbar.show();
}
});
mAuth = FirebaseAuth.getInstance();
mDatabase = FirebaseDatabase.getInstance().getReference();
loginLabel = (TextView) findViewById(R.id.loginLabel);
loginLabel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent loginActivity = new Intent(SignUpActivity.this, LoginActivity.class);
startActivity(loginActivity);
}
});
mAuthListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = firebaseAuth.getCurrentUser();
if (user != null) {
// User is signed in
Log.d("signedIn", "onAuthStateChanged:signed_in:" + user.getUid());
mDatabase.child("users").child(user.getUid()).child("name").setValue(userName.getText().toString());
mDatabase.child("users").child(user.getUid()).child("uniqueUserName").setValue(uniqueUserName.getText().toString());
mDatabase.child("users").child(user.getUid()).child("followers").setValue("00");
mDatabase.child("users").child(user.getUid()).child("following").setValue("00");
mDatabase.child("unique-usernames").child(ts).setValue(uniqueUserName.getText().toString());
Intent mainIntent = new Intent(SignUpActivity.this, SplashActivity.class);
mainIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mainIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(mainIntent);
progressDialog.dismiss();
} else {
// User is signed out
Log.d("signedOut", "onAuthStateChanged:signed_out");
}
// ...
}
};
signUpBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (isNetworkAvailable()) {
signUpUser();
} else {
Snackbar snackbar = Snackbar
.make(coordinatorLayout, "No internet connection", Snackbar.LENGTH_SHORT);
snackbar.show();
}
}
});
}
public void signUpUser() {
if (userName.getText().toString().isEmpty()) {
Snackbar snackbar = Snackbar
.make(coordinatorLayout, "Name cannot be empty", Snackbar.LENGTH_SHORT);
snackbar.show();
} else if (userEmail.getText().toString().isEmpty()) {
Snackbar snackbar = Snackbar
.make(coordinatorLayout, "Email cannot be empty", Snackbar.LENGTH_SHORT);
snackbar.show();
} else if (userPassword.getText().toString().isEmpty()) {
Snackbar snackbar = Snackbar
.make(coordinatorLayout, "Password cannot be empty", Snackbar.LENGTH_SHORT);
snackbar.show();
} else if (userPasswordAgain.getText().toString().isEmpty()) {
Snackbar snackbar = Snackbar
.make(coordinatorLayout, "Please re-type password", Snackbar.LENGTH_SHORT);
snackbar.show();
} else if (!userPassword.getText().toString().equals(userPasswordAgain.getText().toString())) {
Snackbar snackbar = Snackbar
.make(coordinatorLayout, "Password do not match", Snackbar.LENGTH_SHORT);
snackbar.show();
} else {
if (dialog == null) {
final AlertDialog.Builder builder = new AlertDialog.Builder(SignUpActivity.this);
LayoutInflater inflater = this.getLayoutInflater();
View alertDialogView = inflater.inflate(R.layout.choose_unique_name_dialog, null);
uniqueUserName = (EditText) alertDialogView.findViewById(R.id.uniqueUserName);
usernameChoosen = (TextView) alertDialogView.findViewById(R.id.usernameChoosen);
usernameWarning = (TextView) alertDialogView.findViewById(R.id.usernameWarning);
usernameChoosen.setVisibility(View.INVISIBLE);
usernameWarning.setVisibility(View.INVISIBLE);
builder.setTitle("Choose a unique username");
builder.setView(alertDialogView);
builder.setPositiveButton("Continue", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
signingUpMethod();
}
});
dialog = builder.create();
}
dialog.show();
dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
wantToCloseDialog = false;
//Do stuff, possibly set wantToCloseDialog to true then...
if (uniqueUserName.getText().toString().isEmpty()) {
// Snackbar snackbar = Snackbar
// .make(coordinatorLayout, "Please choose a unique username", Snackbar.LENGTH_SHORT);
// snackbar.show();
Toast.makeText(getBaseContext(), "Please choose a unique username", Toast.LENGTH_LONG).show();
wantToCloseDialog = false;
} else {
mDatabase.child("unique-usernames").addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
if (dataSnapshot.getValue() != null) {
if (dataSnapshot.getValue().toString().contains(uniqueUserName.getText().toString())) {
Toast.makeText(getBaseContext(), uniqueUserName.getText().toString() + " is already taken", Toast.LENGTH_LONG).show();
usernameChoosen.setText(uniqueUserName.getText().toString());
wantToCloseDialog = false;
} else {
signingUpMethod();
wantToCloseDialog = true;
}
} else {
signingUpMethod();
wantToCloseDialog = true;
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
Snackbar snackbar = Snackbar
.make(coordinatorLayout, databaseError.getMessage(), Snackbar.LENGTH_LONG);
snackbar.show();
wantToCloseDialog = false;
}
});
}
if(wantToCloseDialog)
dialog.dismiss();
//else dialog stays open. Make sure you have an obvious way to close the dialog especially if you set cancellable to false.
}
});
}
}
public void signingUpMethod() {
progressDialog.setMessage("Signing up...");
progressDialog.setCancelable(false);
progressDialog.show();
mAuth.createUserWithEmailAndPassword(userEmail.getText().toString(), userPassword.getText().toString())
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d("signUpSuccessful", "createUserWithEmail:onComplete:" + task.isSuccessful());
// 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.
if (!task.isSuccessful()) {
Log.d("exception", "onComplete: Failed=" + task.getException().getMessage());
new AlertDialog.Builder(SignUpActivity.this)
.setMessage(task.getException().getMessage())
.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// continue with delete
}
})
.setIcon(android.R.drawable.ic_dialog_alert)
.show();
progressDialog.dismiss();
}
// ...
}
});
}
private void handleFacebookAccessToken(AccessToken token) {
Log.d("token", "handleFacebookAccessToken:" + token);
AuthCredential credential = FacebookAuthProvider.getCredential(token.getToken());
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d("facebookSignInSuccess", "signInWithCredential:onComplete:" + task.isSuccessful());
// 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.
if (!task.isSuccessful()) {
Log.w("facebookSignInFailed", "signInWithCredential", task.getException());
Toast.makeText(SignUpActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
}
// ...
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
在文檔here，它說，在第4點是
如果調用signInWithCredential成功，AuthStateListener運行onAuthStateChanged回調。在回調中，您可以使用getCurrentUser方法獲取用戶的帳戶數據。
但AuthStateListener已經有電子郵件登錄代碼。
所以，我想知道，用什麼代碼，我可以知道，如果用戶已經註冊使用Facebook，以便我可以把相關的代碼在這個塊，如果他已經使用電子郵件註冊，我可以把相關的代碼。
請讓我知道。
您可以遍歷提供者數據以找出用戶使用哪個提供者登錄。見http://stackoverflow.com/questions/38619628/how-to-determine-if-a-firebase-user-is-signed-in-using-facebook-authentication/38619970#38619970 –
@FrankvanPuffelen是的，這是什麼我在尋找。我將使用此代碼並將迴應發生的事情。 –