Android 应用程序即使在卸载并重新安装后仍会保持与 Google 登录的连接

Question

我的应用程序中遇到了这个奇怪的问题。我的应用有一个 GSigninActive，显示在启动画面之后，以便使用 Google 和 Firebase 进行单点登录。问题是，在首次安装和启动时，应用程序直接进入主活动，而不要求登录。我必须从那里注销，然后登录。为什么存在一些登录数据。请帮忙。

G基因活性代码

package com.example.joelmathew.firebidtest;
import android.annotation.TargetApi;
import android.content.Intent;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.annotation.NonNull;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TextView;
import android.widget.Toast;

import com.example.joelmathew.firebidtest.models.User;
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.GoogleSignInResult;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.FirebaseApp;
import com.google.firebase.auth.AuthCredential;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.GoogleAuthProvider;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.common.api.GoogleApiClient;
/**
* Created by Joel Mathew on 01-Jul-17.
*/
public class GSignInActivity extends BaseActivity implements GoogleApiClient.OnConnectionFailedListener, View.OnClickListener {
private static final String TAG = "GoogleActivity";
private static final int RC_SIGN_IN = 9001;
// [START declare_auth]
private FirebaseAuth mAuth;
private DatabaseReference mDatabase;
// [END declare_auth]
protected GoogleApiClient mGoogleApiClient;
private String signout="false";
public String personName;
// private TextView mStatusTextView;
// private TextView mDetailTextView;
@Override
@TargetApi(21)
protected void onCreate(Bundle savedInstanceState) {
FirebaseApp.initializeApp(this);
super.onCreate(savedInstanceState);
setContentView(R.layout.gsignin_activity);
getSupportActionBar().hide();
Window w = getWindow();
w.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
w.setStatusBarColor(ContextCompat.getColor(this, R.color.statusSplash));


// Views
//  mStatusTextView = (TextView) findViewById(R.id.status);
//  mDetailTextView = (TextView) findViewById(R.id.detail);
// 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]
mDatabase = FirebaseDatabase.getInstance().getReference();
mAuth = FirebaseAuth.getInstance();
// [END initialize_auth]

/*Bundle b = getIntent().getExtras();
if(b!=null) {
signout = b.getString("Signout");
if (signout.equals("true")) {
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(@NonNull Status status) {
updateUI(null);
}
});
}
}*/

}
// [START on_start_check_user]
@Override
public void onStart() {
super.onStart();
// Check if user is signed in (non-null) and update UI accordingly.
FirebaseUser currentUser = mAuth.getCurrentUser();
updateUI(currentUser);
}
// [END on_start_check_user]
// [START onactivityresult]
@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) {
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
if (result.isSuccess()) {
// Google Sign In was successful, authenticate with Firebase
GoogleSignInAccount account = result.getSignInAccount();
personName = account.getDisplayName();
Log.v("LOG_VAL","GSigninActivity,onActivityResult: Person Name : "+ personName);
PostKeyHolder.setGlobalPersonName(personName);
Log.v("LOG_VAL","GSigninActivity,onActivityResult: Returned from Person Name : "+ PostKeyHolder.getGlobalPersonName());

//String Number = account.
firebaseAuthWithGoogle(account);
} else {
// Google Sign In failed, update UI appropriately
// [START_EXCLUDE]
updateUI(null);
// [END_EXCLUDE]
}
}
}
// [END onactivityresult]
// [START auth_with_google]
private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());
// [START_EXCLUDE silent]
showProgressDialog();
// [END_EXCLUDE]
final GoogleSignInAccount temp = acct;
AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
mAuth.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 = mAuth.getCurrentUser();
personName = temp.getDisplayName();
Log.v("LOG_VAL","GSigninActivity,firebaseAuthWithGoogle: Person Name : "+ personName);
PostKeyHolder.setGlobalPersonName(personName);
Log.v("LOG_VAL","GSigninActivity,firebaseAuthWithGoogle: REturned from setting Person Name : "+ PostKeyHolder.getGlobalPersonName());
updateUI(user);
onAuthSuccess(user);
} else {
// If sign in fails, display a message to the user.
Log.w(TAG, "signInWithCredential:failure", task.getException());
Toast.makeText(GSignInActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
updateUI(null);
}
// [START_EXCLUDE]
hideProgressDialog();
// [END_EXCLUDE]
}
});
}
// [END auth_with_google]
// [START signin]
private void signIn() {
Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
startActivityForResult(signInIntent, RC_SIGN_IN);
}
// [END signin]
private void signOut() {
// Firebase sign out
mAuth.signOut();
// Google sign out
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(@NonNull Status status) {
updateUI(null);
}
});
}

private void onAuthSuccess(FirebaseUser user) {
String username = usernameFromEmail(user.getEmail());
personName = user.getDisplayName();
Log.v("LOG_VAL","GSigninActivity,onAuthSuccess: Person Name : "+ personName);
PostKeyHolder.setGlobalPersonName(personName);
Log.v("LOG_VAL","GSigninActivity,onAuthSuccess: Returned from Person Name : "+ PostKeyHolder.getGlobalPersonName());

// Write new user
writeNewUser(user.getUid(), username, user.getEmail(),personName);
// PostKeyHolder.setGlobalPersonName(personName); //Setting Global Person handler
// Go to MainActivity
//Intent apiClient = new Intent(GSignInActivity.this,MainActivity.class);
//apiClient.putExtra("ApiClient",mGoogleApiClient);
updateUI(user);
//startActivity(new Intent(GSignInActivity.this, MainActivity.class));
finish();
}
private String usernameFromEmail(String email) {
if (email.contains("@")) {
return email.split("@")[0];
} else {
return email;
}
}
// [START basic_write]
private void writeNewUser(String userId, String username, String email, String personName) {
User user = new User(username, email, personName);
Log.v("LOG_VAL","GSigninActivity,writeNewUser: Person Name : "+ personName);
PostKeyHolder.setGlobalPersonName(personName);
Log.v("LOG_VAL","GSigninActivity,onActivityResult: Returned Person Name : "+ PostKeyHolder.getGlobalPersonName());
mDatabase.child("GoogleSignIn").child(userId).setValue(user);
mDatabase.child("users").child("GoogleSignIn").child(userId).setValue(user);
}
// [END basic_write]

private void revokeAccess() {
// Firebase sign out
mAuth.signOut();
// Google revoke access
Auth.GoogleSignInApi.revokeAccess(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(@NonNull Status status) {
//updateUI(null);
}
});
}
private void updateUI(FirebaseUser user) {
hideProgressDialog();
if (user != null) {
personName = user.getDisplayName();
Log.v("LOG_VAL","GSigninActivity,updateUI: Person Name : "+ personName);
PostKeyHolder.setGlobalPersonName(personName);
Log.v("LOG_VAL","GSigninActivity,updateUI: Returned Person Name : "+ PostKeyHolder.getGlobalPersonName());
//  mStatusTextView.setText(getString(R.string.google_status_fmt, user.getEmail()));
// mDetailTextView.setText(getString(R.string.firebase_status_fmt, user.getUid()));
findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
startActivity(new Intent(GSignInActivity.this, MainActivity.class));
finish();
//  findViewById(R.id.sign_out_and_disconnect).setVisibility(View.VISIBLE);
} else {

//  mStatusTextView.setText(R.string.signed_out);
//            mDetailTextView.setText(null);
findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
//   findViewById(R.id.sign_out_and_disconnect).setVisibility(View.GONE);
}
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
// An unresolvable error has occurred and Google APIs (including Sign-In) will not
// be available.
Log.d(TAG, "onConnectionFailed:" + connectionResult);
Toast.makeText(this, "Google Play Services error.", Toast.LENGTH_SHORT).show();
}
@Override
public void onClick(View v) {
int i = v.getId();
if (i == R.id.sign_in_button) {
signIn();
} //else if (i == R.id.sign_out_button)
/* // {
signOut();
} //else if (i == R.id.disconnect_button)
/* {
//evokeAccess();
}*/
}

}

清单.XML

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.joelmathew.firebidtest">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme" />
<activity android:name=".NewPostActivity"
android:windowSoftInputMode="adjustPan"/>
<activity android:name=".BuyNow"/>
<activity android:name=".BidMainScreen3"
android:windowSoftInputMode="adjustPan"/>
<!--activity android:name=".SignInActivity"-->
<!--intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter-->
<!--/activity-->
<activity android:name=".SplashScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".GSignInActivity"></activity>
<activity android:name=".PostDetailActivity"></activity>
<activity android:name=".TopBidsActivity"></activity>
<activity android:name=".OrdersActivity"></activity>
</application>

</manifest>

Answer 1

看起来你的AndroidManifest.xml里有android:allowBackup="true"。

自 Android 6.0 (API 23( 起，Android 提供了应用自动备份功能，作为开发者快速向其应用添加备份功能的一种方式。 自动备份通过将应用数据上传到用户的 Google 云端硬盘帐户来保留应用数据，该帐户受用户的 Google 帐户凭据保护。每个应用用户的数据量限制为 25MB，并且存储备份数据不收取任何费用。

您可能希望禁用备份。在这里详细阅读 https://developer.android.com/guide/topics/data/autobackup.html#Files

Answer 2

您需要在需要时清除应用程序数据。就像在注销或类似的东西上一样。这将解决您的所有问题

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
((ActivityManager) context.getSystemService(ACTIVITY_SERVICE))
.clearApplicationUserData(); // note: it has a return value!
} else {
clearApplicationData();
}
public void clearApplicationData() {
File cache = getCacheDir();
File appDir = new File(cache.getParent());
if (appDir.exists()) {
String[] children = appDir.list();
for (String s : children) {
if (!s.equals("lib")) {
deleteDir(new File(appDir, s));
Log.i("TAG", "File /data/data/APP_PACKAGE/" + s + " DELETED");
}
}
}
}