1
我使用Firebase將Google和Facebook登錄集成到了我的應用中。我想在用戶使用他的Facebook或Google ID成功登錄後自動啓動另一個活動，並且下次用戶打開該應用程序時，如果他沒有註銷，他應該自動重定向到主頁。Firebase Facebook和Google登錄
- 對於谷歌，它工作正常，但對於Facebook登錄按鈕的文字是越來越改爲「登錄」，但它不被重定向到首頁。
- 我也想限制用戶一次僅使用1個登錄方法。我是 的意思是，如果他從Facebook登錄，他不應該能夠從谷歌登錄，反之亦然。
任何人都可以幫忙嗎？下面是我的代碼：
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import com.example.aamir.myapplication.R;
import com.facebook.AccessToken;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.login.LoginManager;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthCredential;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FacebookAuthProvider;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.GoogleAuthProvider;
public class homeActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener {
// [START declare_auth]
private static FirebaseAuth mAuth;
ProgressDialog mProgressDialog;
private static final int RC_SIGN_IN = 9001;
// [END declare_auth]
private static final String TAG = homeActivity.class.getSimpleName();
// [START declare_auth_listener]
private FirebaseAuth.AuthStateListener mAuthListener;
// [END declare_auth_listener]
private GoogleApiClient mGoogleApiClient;
private CallbackManager mCallbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());
setContentView(R.layout.activity_home);
mProgressDialog = new ProgressDialog(homeActivity.this);
mProgressDialog.setIndeterminate(true);
mProgressDialog.setTitle("Logging in");
mProgressDialog.setMessage("Please Wait");
mProgressDialog.setIcon(android.R.drawable.ic_dialog_email);
// [START initialize_auth]
// Initialize Firebase Auth
mAuth = FirebaseAuth.getInstance();
// [END initialize_auth]
// [START initialize_fblogin]
// Initialize Facebook Login button
mCallbackManager = CallbackManager.Factory.create();
LoginButton loginButton = (LoginButton) findViewById(R.id.fb_btn);
loginButton.setReadPermissions("email", "public_profile");
// [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());
Intent intent = new Intent(homeActivity.this, StaggeredViewActivity.class);
startActivity(intent);
} else {
// User is signed out
Log.d(TAG, "onAuthStateChanged:signed_out");
}
// [START_EXCLUDE]
// [END_EXCLUDE]
}
};
// [END auth_state_listener]
// [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(homeActivity.this, this /* OnConnectionFailedListener */)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
//Google Button Handle
findViewById(R.id.google).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
startActivityForResult(signInIntent, RC_SIGN_IN);
}
});
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]
Toast.makeText(homeActivity.this, "Cancelled", Toast.LENGTH_SHORT).show();
// [END_EXCLUDE]
}
@Override
public void onError(FacebookException error) {
Log.d(TAG, "facebook:onError", error);
// [START_EXCLUDE]
Toast.makeText(homeActivity.this, "Some Error Occured", Toast.LENGTH_SHORT).show();
// [END_EXCLUDE]
}
});
// [END initialize_fblogin]
}
// [START on_start_add_listener]
@Override
public void onStart() {
super.onStart();
mAuth.addAuthStateListener(mAuthListener);
}
// [END on_start_add_listener]
// [START on_stop_remove_listener]
@Override
public void onStop() {
super.onStop();
if (mAuthListener != null) {
mAuth.removeAuthStateListener(mAuthListener);
}
}
// [END on_stop_remove_listener]
// [START on_activity_result]
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
if (requestCode == RC_SIGN_IN) {
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
if (result.isSuccess()) {
// Google Sign In was successful, authenticate with Firebase
GoogleSignInAccount account = result.getSignInAccount();
firebaseAuthWithGoogle(account);
} else {
// Google Sign In failed, update UI appropriately
// [START_EXCLUDE]
Toast.makeText(this, "Google Sign in Failed", Toast.LENGTH_SHORT).show();
// [END_EXCLUDE]
}
}
else{
// Pass the activity result back to the Facebook SDK
mCallbackManager.onActivityResult(requestCode, resultCode, data);
}
if(mGoogleApiClient!=null && mGoogleApiClient.isConnected()){
Auth.GoogleSignInApi.signOut(mGoogleApiClient);
}
}
// [END on_activity_result]
// [START auth_with_google]
private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());
// [START_EXCLUDE silent]
mProgressDialog.show();
// [END_EXCLUDE]
AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d(TAG, "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(TAG, "signInWithCredential", task.getException());
Toast.makeText(homeActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
}
// [START_EXCLUDE]
mProgressDialog.dismiss();
// [END_EXCLUDE]
}
});
}
// [END auth_with_google]
// [START auth_with_facebook]
private void handleFacebookAccessToken(AccessToken token) {
Log.d(TAG, "handleFacebookAccessToken:" + token);
// [START_EXCLUDE silent]
mProgressDialog.show();
// [END_EXCLUDE]
AuthCredential credential = FacebookAuthProvider.getCredential(token.getToken());
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d(TAG, "signInWithCredential:onComplete:" + task.isSuccessful());
// [START_EXCLUDE]
mProgressDialog.dismiss();
// [END_EXCLUDE]
}
});
}
// [END auth_with_facebook]
public static void signOut() {
FirebaseAuth.getInstance().signOut();
LoginManager.getInstance().logOut();
//mAuth.signOut();
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
@Override
public void onConnected(@Nullable Bundle bundle) {
}
@Override
public void onConnectionSuspended(int i) {
}
}