Unable to get email from the GraphRequest class of the Facebook - android

Here is my fbLoginFragment.java in which I am trying to get the user logged in using Facebook SDK 4.9.0 -:
LoginButton loginButton;
AccessToken accessToken;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_fblogin, container, false);
}
private CallbackManager callbackManager;
private AccessTokenTracker accessTokenTracker;
private ProfileTracker profileTracker;
private FacebookCallback<LoginResult> callback = new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
#Override
public void onCompleted(JSONObject object, GraphResponse response) {
// Application code
String email = object.optString("email");
Log.i("Radhe", response.toString());
Log.i("Radhe", object.toString() + " " +email);
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,email,gender, birthday");
request.setParameters(parameters);
request.executeAsync();
}
#Override
public void onCancel() {
Log.i("Radhe", "Cancelled");
}
#Override
public void onError(FacebookException e) {
Log.i("Radhe", "Error = " + e);
}
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getActivity().getApplicationContext());
callbackManager = CallbackManager.Factory.create();
accessTokenTracker = new AccessTokenTracker() {
#Override
protected void onCurrentAccessTokenChanged(AccessToken oldToken, AccessToken newToken) {
}
};
profileTracker = new ProfileTracker() {
#Override
protected void onCurrentProfileChanged(Profile oldProfile, Profile newProfile) {
Log.i("Radhe", "So Hari it is coming here");
}
};
accessTokenTracker.startTracking();
profileTracker.startTracking();
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
loginButton = (LoginButton) view.findViewById(R.id.login_button);
loginButton.setReadPermissions("public_profile");
loginButton.setReadPermissions("email");
loginButton.setReadPermissions("user_birthday");
loginButton.setReadPermissions("user_friends");
loginButton.setFragment(this);
loginButton.registerCallback(callbackManager, callback);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
#Override
public void onStop() {
super.onStop();
accessTokenTracker.stopTracking();
profileTracker.stopTracking();
}
#Override
public void onResume() {
super.onResume();
Profile profile = Profile.getCurrentProfile();
displayMessage(profile);
}
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
private void displayMessage(Profile profile) {
/****************************Save user to Parse***********************************/
if (profile != null) {
ParseUser user = new ParseUser();
user.setUsername(profile.getId().toString());
user.setPassword(profile.getId().toString());
user.put("legalname", profile.getFirstName());
user.put("surname", profile.getLastName());
user.signUpInBackground(new SignUpCallback() {
public void done(ParseException e) {
if (e == null) {
Log.i("Radhe", "Radhe! Parse signup is success");
startActivity(new Intent(getActivity().getApplicationContext(), home.class));
} else {
e.printStackTrace();
Log.i("Radhe", "Radhe! Parse signup is failure " + e);
}
}
});
}
}
I have given the permissions also but I am not getting email and date of birth in the JSON object.
Here is the result of my Logcat-:
01-22 16:29:07.909 8841-8841/? I/Radhe: {Response: responseCode: 200, graphObject: {"id":"820969881382796","gender":"male","name":"Pranav Shukla"}, error: null}
01-22 16:29:07.909 8841-8841/? I/Radhe: {"id":"820969881382796","gender":"male","name":"Pranav Shukla"}

You need to add permission as List like below:
....
List<String> permissions = new ArrayList<String>();
permissions.add("public_profile");
permissions.add("email");
permissions.add("user_birthday");
permissions.add("user_friends");
loginButton.setReadPermissions(permissions);
....
Check Facebook doc : public void setReadPermissions(List permissions)

Related

Facebook login in fragment

I would like to use Facebook login in my App. I have just registred app and added SDK to project. However, I tried to follow the tutorial from documentation but nothing worked (I need to get ID and email from profile and send to to my server).
Fragment
public class LoginFragment extends Fragment {
#BindView(R.id.ivLogo) ImageView ivLogo;
#BindView(R.id.email) EditText edEmail;
#BindView(R.id.password) EditText edPassword;
#BindView(R.id.btnFbLogin) LoginButton btnFbLogin;
private CallbackManager callbackManager;
private AccessTokenTracker accessTokenTracker;
private ProfileTracker profileTracker;
String email, password, ID;
User user;
public LoginFragment() {
// Required empty public constructor
}
public static LoginFragment newInstance() {
LoginFragment fragment = new LoginFragment();
Bundle args = new Bundle();
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LoginManager.getInstance().registerCallback(callbackManager,
new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
// App code
Log.i("success", "success");
}
#Override
public void onCancel() {
// App code
}
#Override
public void onError(FacebookException exception) {
// App code
}
});
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_login_screen, container, false);
ButterKnife.bind(this, view);
btnFbLogin.setReadPermissions("email");
btnFbLogin.setFragment(this);
// Callback registration
btnFbLogin.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
// App code
}
#Override
public void onCancel() {
// App code
}
#Override
public void onError(FacebookException exception) {
// App code
}
});
return view;
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
}
#Override
public void onResume() {
super.onResume();
((MainActivity) getActivity()).getSupportActionBar().hide();
}
private void FBcallback() {
FacebookCallback<LoginResult> callback = new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
AccessToken accessToken = loginResult.getAccessToken();
Profile profile = Profile.getCurrentProfile();
GraphRequest request = GraphRequest.newMeRequest(
loginResult.getAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
#Override
public void onCompleted(
JSONObject object,
GraphResponse response) {
try {
String email = object.getString("email");
} catch (JSONException e) {
e.printStackTrace();
}
}
});
}
#Override
public void onCancel() { }
#Override
public void onError(FacebookException e) { }
};
btnFbLogin.setReadPermissions("email");
btnFbLogin.registerCallback(callbackManager, callback);
}
private void loginEmail() {
FactoryAPI.getInstanceLogin().login("hardcoded mail", "hardcoded password").enqueue(new Callback<UserResponse>() {
#Override
public void onResponse(Call<UserResponse> call, Response<UserResponse> response) {
if (response.isSuccessful()) {
user = response.body().getUser();
startActivity();
} else {
Toast.makeText(getContext(), R.string.email_password_is_not_right, Toast.LENGTH_LONG).show();
}
}
#Override
public void onFailure(Call<UserResponse> call, Throwable t) {
}
});
}
private void loginFB() {
FactoryAPI.getServieFBlogin().loginFB(email, ID).enqueue(new Callback<UserResponse>() {
#Override
public void onResponse(Call<UserResponse> call, Response<UserResponse> response) {
if (response.isSuccessful()) {
user = response.body().getUser();
startActivity();
} else {
Toast.makeText(getContext(), "Something went wrong", Toast.LENGTH_LONG).show();
}
}
#Override
public void onFailure(Call<UserResponse> call, Throwable t) {
Log.e("error", "error");
}
});
}
public void getEmailPassword() {
email = edEmail.getText().toString();
password = edPassword.getText().toString();
if (email.isEmpty() || password.isEmpty()) {
Toast.makeText(getContext(), R.string.empty_properties, Toast.LENGTH_SHORT).show();
}
}
public static boolean emailValidation(CharSequence target) {
return !TextUtils.isEmpty(target) && Patterns.EMAIL_ADDRESS.matcher(target).matches();
}
public void startActivity() {
Intent intent = new Intent(getContext(), AccountActivity.class);
intent.putExtra("account", user);
startActivity(intent);
}
#Override
public void onActivityResult(int requestCode, int responseCode, Intent intent) {
super.onActivityResult(requestCode, responseCode, intent);
callbackManager.onActivityResult(requestCode, responseCode, intent);
}
#OnClick({R.id.sign_up_email, R.id.btnFbLogin})
public void onClick(View view) {
switch (view.getId()) {
case R.id.sign_up_email:
loginEmail();
case R.id.btnFbLogin:
break;
}
}
private void getProfile(Profile profile){
if(profile != null){
ID = profile.getId();
}
}
}
As your facebook login is in Fragment not in activity, so the
callback comes in onActivityResult() of Activity in which this fragment attached.
You can check this after override the onActivityResult() of your activity, and put a debug point there.
After you getting result in your activity onActivityResult() method, you can send it to your fragment's onActivityResult().
Hope this will help.
First of all if you are using LoginButton then you don't need to register with LoginManager. Here is the sample
//Using Facebook's LoginButton
//Register Callback
callbackManager = CallbackManager.Factory.create();
loginButton = (LoginButton) findViewById(R.id.login_button);
loginButton.setReadPermissions(Arrays.asList("email")); //set permissions as public_profile, email, etc
loginButton.setFragment(this); //If you are using in a fragment
// Callback registration
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
// App code
}
#Override
public void onCancel() {
// App code
}
#Override
public void onError(FacebookException exception) {
// App code
}
});
Now with LoginManager when using Custom Button to login instead of FB's LoginButton
//To check if you are already logged In
boolean loggedIn = AccessToken.getCurrentAccessToken() == null;
// To Manually login. This will launch facebook's login screen.
LoginManager.getInstance().logInWithReadPermissions(this,
Arrays.asList("public_profile","email"));
In both the cases, for Fragment or Activity you need to handle onActivityResult
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
callbackManager.onActivityResult(requestCode, resultCode, data);
super.onActivityResult(requestCode, resultCode, data);
}

Using Shared Preferences with Log in with Facebook

I'm trying to save user details after logging in (with Facebook). I'm able to fetch data but can't save it. I'm using SharedPreferences but can't save it. Data is not lost when I go on some other activity, but when I click back button and re-open this activity, all data is lost. Here is my code:
Profilee.java
public class Profilee extends Fragment {
String email1, birthday1, gender1;
ImageView imageView;
static int itis = 1;
TextView texty;
LoginButton button;
LinearLayout userinput;
private CallbackManager callbackManager;
private TextView textView;
SharedPreferences pref;
private TextView email, birthday, gende;
private AccessTokenTracker accessTokenTracker;
private ProfileTracker profileTracker;
private FacebookCallback<LoginResult> callback = new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
AccessToken accessToken = loginResult.getAccessToken();
Profile profile = Profile.getCurrentProfile();
GraphRequest graphrequest = GraphRequest.newMeRequest(loginResult.getAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
#Override
public void onCompleted(JSONObject object, GraphResponse response) {
JSONObject jsonObject = response.getJSONObject();
if (jsonObject != null) {
try {
email1 = jsonObject.getString("email");
gender1 = jsonObject.getString("gender");
birthday1 = jsonObject.getString("birthday");
} catch (JSONException e) {
e.printStackTrace();
}
}
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "email, gender, birthday");
graphrequest.setParameters(parameters);
graphrequest.executeAsync();
AppEventsLogger.activateApp(getContext());
}
#Override
public void onCancel() {
}
#Override
public void onError(FacebookException e) {
}
};
public Profilee() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getActivity().getApplicationContext());
callbackManager = CallbackManager.Factory.create();
Toast.makeText(getContext(), "Create", Toast.LENGTH_SHORT).show();
pref = getContext().getSharedPreferences("", getContext().MODE_PRIVATE);
pref.getString("name", "asdfgh");
pref.getString("email", "qwerty");
pref.getString("gender", "zxcvb");
accessTokenTracker = new AccessTokenTracker() {
#Override
protected void onCurrentAccessTokenChanged(AccessToken oldToken, AccessToken newToken) {
}
};
profileTracker = new ProfileTracker() {
#Override
protected void onCurrentProfileChanged(Profile oldProfile, Profile newProfile) {
}
};
accessTokenTracker.startTracking();
profileTracker.startTracking();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_profilee, container, false);
button = (LoginButton) v.findViewById(R.id.login_button);
TextView button12 = (TextView) v.findViewById(R.id.edit);
button12.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(getContext(), PrifileEdit.class);
i.putExtra("st", email1);
startActivity(i);
}
});
texty = (TextView) v.findViewById(R.id.emo);
imageView = (ImageView) v.findViewById(R.id.asd);
userinput = (LinearLayout) v.findViewById(R.id.userdetail);
int unicode = 0x1F60E;
String emoji = getEmijoByUnicode(unicode);
String text = "We will never post on your wall without permission ";
texty.setText(text + emoji);
Toast.makeText(getContext(), "CreateView", Toast.LENGTH_SHORT).show();
return v;
}
public String getEmijoByUnicode(int unicode) {
return new String(Character.toChars(unicode));
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
LoginButton loginButton = (LoginButton) view.findViewById(R.id.login_button);
textView = (TextView) view.findViewById(R.id.textView);
email = (TextView) view.findViewById(R.id.emailid);
gende = (TextView) view.findViewById(R.id.gender);
birthday = (TextView) view.findViewById(R.id.birth);
loginButton.setReadPermissions("email");
loginButton.setFragment(this);
loginButton.registerCallback(callbackManager, callback);
Toast.makeText(getContext(), "ViewCreate", Toast.LENGTH_SHORT).show();
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
onResume();
}
}, 2000);
}
public void displayMessage(final Profile profile) {
if (itis == 1) {
if (profile != null) {
textView.setText(profile.getName());
email.setText(email1);
gende.setText(gender1);
birthday.setText(birthday1);
button.setVisibility(View.GONE);
texty.setVisibility(View.GONE);
userinput.setVisibility(View.VISIBLE);
pref = getContext().getSharedPreferences("", getContext().MODE_PRIVATE);
SharedPreferences.Editor editor = pref.edit();
editor.putString("name", String.valueOf(textView));
editor.putString("email", String.valueOf(email));
editor.putString("gender", String.valueOf(gende));
editor.commit();
}
}
}
#Override
public void onStart() {
super.onStart();
Toast.makeText(getContext(), "Start", Toast.LENGTH_SHORT).show();
}
#Override
public void onStop() {
super.onStop();
accessTokenTracker.stopTracking();
profileTracker.stopTracking();
}
#Override
public void onResume() {
super.onResume();
Profile profile = Profile.getCurrentProfile();
displayMessage(profile);
AppEventsLogger.activateApp(getContext());
}
}
I think this problem is because of displayMessage() method .
when you reopen this Activity , onResume(); method will call , and then displayMessage() .
in displayMessage() you are setting sharedprefrecens values again , and this work cause you lost previous data from this sharedprefrecens.
for solve this problem you must cut onResume codes inside onCreate method
You aren't persisting the data in SharedPreferences correctly. getText() will retrieve the text that is currently displayed in the TextView, allowing you to store it into SharedPreferences.
editor.putString("name", String.valueOf(textView)); // wrong
editor.putString("name", textView.getText().toString()); // right
You can then retrieve the value and display it on screen by calling setText().
String myEmail = pref.getString("email", "qwerty");
textView.setText(myEmail);

Unable to get Access Token in Android App which uses facebook api

I need help regarding accessToken of the facebook, the problem here is when i try to call accessToken method it returns a null. Actually i want to post comments from my app to the specific page and get comments from the page-id where these posts are posted.
The problem i have got is when i try to post comment i get an error like this An active access token must be used to query information about the current user.
and when i tried to get comments i get this error An access token is required to request this resource
I need help as i got stuck here.
Thanks for the help!!
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
linearLayout2 = (LinearLayout) inflater.inflate(R.layout.second_fragment, container, false);
editText = (EditText) linearLayout2.findViewById(R.id.commentBox);
button = (Button) linearLayout2.findViewById(R.id.submitButton);
openfeed = (LinearLayout) linearLayout2.findViewById(R.id.fakebutton);
initInstances();
initCallbackManager();
refreshButtonState();
getAllComments();
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Bundle params = new Bundle();
params.putString("message", editText.getText().toString());
GraphRequest graphRequest = new GraphRequest(
accessToken,
"/me/feed",
params,
HttpMethod.POST,
new GraphRequest.Callback() {
#Override
public void onCompleted(GraphResponse response) {
System.out.println("Success: " + response);
}
}
);
graphRequest.executeAsync();
}
});
return linearLayout2;
}
private void initInstances() {
System.out.println("I am init");
openfeed.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
LoginManager.getInstance().logInWithPublishPermissions(getActivity(), Arrays.asList("publish_actions,publish_pages,manage_pages,user_about_me"));
}
});
}
private void initCallbackManager() {
System.out.println("i am initCallbackManager");
callbackManager = CallbackManager.Factory.create();
LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
refreshButtonState();
}
#Override
public void onCancel() {
}
#Override
public void onError(FacebookException error) {
}
});
}
private void refreshButtonState() {
System.out.println("refresh button state");
if (!isLoggedIn()) {
openfeed.setVisibility(View.VISIBLE);
} else {
openfeed.setVisibility(View.GONE);
}
}
private boolean isLoggedIn() {
accessToken = AccessToken.getCurrentAccessToken();
return accessToken != null;
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
public void getAllComments() {
new GraphRequest(
AccessToken.getCurrentAccessToken(),
"/{page-id}/feed",
null,
HttpMethod.GET,
new GraphRequest.Callback() {
public void onCompleted(GraphResponse response) {
System.out.println("comments: " + response);
}
}
).executeAsync();
}
}

FaceBook SDK for android login not working

so i created a simple facebook login app following the exact instructions from this video: https://www.youtube.com/watch?v=myWu-q8Q2NA&list=PLonJJ3BVjZW4E1wIRZvuXhbFRGWB1grmh
anyways i am able to sign in but unlike the video, when I sign in, I appear back at the login page, the login button does not change to the logout button,
I click the login button, enter my login details, hit send, then a message says: You have already authorized "LoginExample (app name)". Then I appear back at the login with facebook button.
and on a similar note, I am trying to get a TextView to display a "Welcome", however it does not work, it only works when I do ' android:text="Welcome" '.
Below is my code in a fragment, I do setContentView(activity_fragment); in MainActivity. Again, the Login button appears but the TextView does not.
What is going wrong?
public class MainFragment extends Fragment {
public TextView mTextDetails;
private AccessTokenTracker mtokentracker;
private ProfileTracker mprofiletracker;
CallbackManager mCallBackManager;
private FacebookCallback<LoginResult> mCallBack = new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
AccessToken accessToken = loginResult.getAccessToken();
//TextView mTextDetails = (TextView)getView().findViewById(R.id.textView);
Profile profile = Profile.getCurrentProfile();
if (profile != null){
mTextDetails.setText("Welcome " + profile.getName());
}
//setContentView(R.layout.activity_main);
}
#Override
public void onCancel() {
}
#Override
public void onError(FacebookException e) {
}
};
public MainFragment() {
//TextView mTextDetails = (TextView) getView().findViewById(R.id.textView);
//mTextDetails.setText("Welcome");
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getActivity().getApplicationContext());
mCallBackManager = CallbackManager.Factory.create();
AccessTokenTracker tracker = new AccessTokenTracker() {
#Override
protected void onCurrentAccessTokenChanged(AccessToken old, AccessToken niw) {
Profile profile = Profile.getCurrentProfile();
if (profile != null){
mTextDetails.setText("welcome " + profile.getName());
}
}
};
ProfileTracker profileTracker = new ProfileTracker() {
#Override
protected void onCurrentProfileChanged(Profile old, Profile niw) {
}
};
mtokentracker.startTracking();
mprofiletracker.startTracking();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_main, container, false);
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
LoginButton loginButton = (LoginButton)view.findViewById(R.id.login_button);
//loginButton.setReadPermissions("user_friends");
loginButton.setFragment(this);
loginButton.registerCallback(mCallBackManager, mCallBack);
TextView mTextDetails = (TextView)getView().findViewById(R.id.textView);
mTextDetails.setText("Welcome");
}
#Override
public void onResume() {
super.onResume();
Profile profile = Profile.getCurrentProfile();
if (profile != null){
mTextDetails.setText("Welcome " + profile.getName());
}
}
#Override
public void onStop() {
super.onStop();
mtokentracker.stopTracking();
mprofiletracker.stopTracking();
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
mCallBackManager.onActivityResult(requestCode,resultCode,data);
}
}

I dont know how using LOGOUT in FACEBOOK API ANDROID

I have the follow code, but I don't know which is the method that execute when I push in Logout. I only need know which is the method that execute in logout. Or another solution? Thanks for all :) dasasa
public class FBLoginFragment extends Fragment implements IServiceCallback {
private CallbackManager callbackManager;
private TextView textView;
private AccessTokenTracker accessTokenTracker;
private ProfileTracker mProfileTracker;
private FacebookCallback<LoginResult> callback = new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
mProfileTracker = new ProfileTracker() {
#Override
protected void onCurrentProfileChanged(Profile profile, Profile profile2) {
mProfileTracker.stopTracking();
}
};
mProfileTracker.startTracking();
AccessToken accessToken = loginResult.getAccessToken();
Profile profile = Profile.getCurrentProfile();
displayMessage(profile);
}
#Override
public void onCancel() {
}
#Override
public void onError(FacebookException e) {
}
};
public FBLoginFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getActivity().getApplicationContext());
callbackManager = CallbackManager.Factory.create();
accessTokenTracker= new AccessTokenTracker() {
#Override
protected void onCurrentAccessTokenChanged(AccessToken oldToken, AccessToken newToken) {
}
};
mProfileTracker = new ProfileTracker() {
#Override
protected void onCurrentProfileChanged(Profile oldProfile, Profile newProfile) {
displayMessage(newProfile);
if(newProfile != null){
register(newProfile);
}
}
};
accessTokenTracker.startTracking();
mProfileTracker.startTracking();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.facebook_fragment, container, false);
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
LoginButton loginButton = (LoginButton) view.findViewById(R.id.login_button);
textView = (TextView) view.findViewById(R.id.textView);
loginButton.setReadPermissions(Arrays.asList("public_profile", "user_friends"));
loginButton.setFragment(this);
loginButton.registerCallback(callbackManager, callback);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (callbackManager.onActivityResult(requestCode, resultCode, data))
return;
}
private void displayMessage(Profile profile){
if(profile != null){
textView.setText(profile.getName());
}
}
private void register(Profile profile){
if(profile != null){
new Register(this).run(profile);
}
}
#Override
public void onStop() {
super.onStop();
accessTokenTracker.stopTracking();
mProfileTracker.stopTracking();
}
#Override
public void onResume() {
super.onResume();
Profile profile = Profile.getCurrentProfile();
displayMessage(profile);
}
#Override
public void onSuccess(JSONObject obj, String method) throws JSONException {
User user = new User(obj);
user.insert();
//Intent intent = new Intent(getActivity(), Update.class);
//startActivity(intent);
}
#Override
public void onError(String error) {
}
You need to get the active Session, then then call closeAndClearTokenInformation().
You can get the currently active session via Session.getActiveSession().
Try this method to logout from facebook programmatically in android
/**
* Logout From Facebook
*/
public static void callFacebookLogout(Context context) {
Session session = Session.getActiveSession();
if (session != null) {
if (!session.isClosed()) {
session.closeAndClearTokenInformation();
//clear your preferences if saved
}
} else {
session = new Session(context);
Session.setActiveSession(session);
session.closeAndClearTokenInformation();
//clear your preferences if saved
}
}

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