Facebook Android SDK 4.5.0 获取邮箱地址

Question

I'm currently creating a test application to test using the latest facebook SDK to update our existing application problem is that I need to get the email address which I know depends if the user has provided one on his account. Now the account I'm using to test provides one for sure but for unknown reason the facebook SDK only provides the user_id and the fullname of the account and nothing else. I'm confused on this since the the SDK3 and above provides more information than the updated SDK4 and I'm lost on how to get the email as all the answers I've seen so far doesn't provide the email on my end. Here's my code so far:

Login Button

@OnClick(R.id.btn_login)
    public void loginFacebook(){
        LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("public_profile", "email"));
    }

LoginManager Callback:

LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
            @Override
            public void onSuccess(LoginResult loginResult) {
                requestUserProfile(loginResult);
            }

            @Override
            public void onCancel() {
                Toast.makeText(getBaseContext(),"Login Cancelled", Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onError(FacebookException e) {
                Toast.makeText(getBaseContext(),"Problem connecting to Facebook", Toast.LENGTH_SHORT).show();
            }
        });

And the request for user profile:

public void requestUserProfile(LoginResult loginResult){
        GraphRequest.newMeRequest(
                loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
                    @Override
                    public void onCompleted(JSONObject me, GraphResponse response) {
                        if (response.getError() != null) {
                            // handle error
                        } else {
                            try {
                                String email = response.getJSONObject().get("email").toString();
                                Log.e("Result", email);
                            } catch (JSONException e) {
                                e.printStackTrace();
                            }
                            String id = me.optString("id");
                            // send email and id to your web server
                            Log.e("Result1", response.getRawResponse());
                            Log.e("Result", me.toString());
                        }
                    }
                }).executeAsync();
    }

The JSON response returns only the ID and full name of my account but doesn't include the email. Did I missed out something?

Answer 1

You need to ask for parameters to facebook in order to get your data. Here I post my function where I get the facebook data. The key is in this line:

parameters.putString("fields", "id, first_name, last_name, email,gender, birthday, location"); // Parámetros que pedimos a facebook

Hope it helps you.

btnLoginFb.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {

        @Override
        public void onSuccess(LoginResult loginResult) {

            System.out.println("onSuccess");
            progressDialog = new ProgressDialog(LoginActivity.this);
            progressDialog.setMessage("Procesando datos...");
            progressDialog.show();
            String accessToken = loginResult.getAccessToken().getToken();
            Log.i("accessToken", accessToken);

            GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {

                @Override
                public void onCompleted(JSONObject object, GraphResponse response) {
                    Log.i("LoginActivity", response.toString());
                    // Get facebook data from login
                    Bundle bFacebookData = getFacebookData(object); 
                }
            });
            Bundle parameters = new Bundle();
            parameters.putString("fields", "id, first_name, last_name, email,gender, birthday, location"); // Parámetros que pedimos a facebook
            request.setParameters(parameters);
            request.executeAsync();
        }

        @Override
        public void onCancel() {
            System.out.println("onCancel");
        }

        @Override
        public void onError(FacebookException exception) {
            System.out.println("onError");
            Log.v("LoginActivity", exception.getCause().toString());
        }
    });



private Bundle getFacebookData(JSONObject object) {

        try {
            Bundle bundle = new Bundle();
            String id = object.getString("id");

            try {
                URL profile_pic = new URL("https://graph.facebook.com/" + id + "/picture?width=200&height=150");
                Log.i("profile_pic", profile_pic + "");
                bundle.putString("profile_pic", profile_pic.toString());

            } catch (MalformedURLException e) {
                e.printStackTrace();
                return null;
            }

            bundle.putString("idFacebook", id);
            if (object.has("first_name"))
                bundle.putString("first_name", object.getString("first_name"));
            if (object.has("last_name"))
                bundle.putString("last_name", object.getString("last_name"));
            if (object.has("email"))
                bundle.putString("email", object.getString("email"));
            if (object.has("gender"))
                bundle.putString("gender", object.getString("gender"));
            if (object.has("birthday"))
                bundle.putString("birthday", object.getString("birthday"));
            if (object.has("location"))
                bundle.putString("location", object.getJSONObject("location").getString("name"));

            return bundle;
        }
      catch(JSONException e) {
        Log.d(TAG,"Error parsing JSON");
      }
    return null;
}

Answer 2

使用 JSONObject me访问电子邮件，而不是获取graphResponse的值

userEmail = jsonObject.getString("email");

Answer 3

Hope it helps you

/*** setupFacebook stuff like make login with facebook and get the userId,Name and Email*/
    private void setupFacebookStuff() {
        Log.e(TAG, "key hash= " + Utils.getKeyHash(SplashActivity.this, getPackageName()));

        // This should normally be on your application class
        FacebookSdk.sdkInitialize(SplashActivity.this);

        accessTokenTracker = new AccessTokenTracker() {
            @Override
            protected void onCurrentAccessTokenChanged(AccessToken oldAccessToken, AccessToken currentAccessToken) {
                   currentAccessToken.getToken();
            }
        };

        loginManager = LoginManager.getInstance();
        callbackManager = CallbackManager.Factory.create();

        LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
            @Override
            public void onSuccess(LoginResult loginResult) {

                preference.setUserLogin(true);

                final GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
                    @Override
                    public void onCompleted(JSONObject object, GraphResponse response) {
                        try {
                                Log.e("id", "" + object);

                            if (object.has(getString(R.string.fbParamId))) {

                                final String userId = object.optString(getString(R.string.fbParamId));
                                final String userPicture = "https://graph.facebook.com/" + object.optString(getString(R.string.fbParamId)) + "/picture?type=large";

                                preference.setUserId(userId);
                                preference.setUserPictureUrl(userPicture);

                            }
                            if (object.has(getString(R.string.fbParamUserName))) {


                                final String userName = object.optString(getString(R.string.fbParamUserName));
                                preference.setUserName(userName);
                            }

                            if (object.has(getString(R.string.fbParamEmail))) {

                                final String userEmail = object.optString(getString(R.string.fbParamEmail));
                                preference.setUserName(userEmail);
                                Log.e("useremail", userEmail);
                            }

                            callMainActivity(true);

                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }
                });

                final Bundle parameters = new Bundle();
                parameters.putString("fields", "name,email,id");
                request.setParameters(parameters);
                request.executeAsync();
            }

            @Override
            public void onCancel() {
                Toast.makeText(getBaseContext(), "Login Cancelled", Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onError(FacebookException error) {
                Toast.makeText(getBaseContext(), "Problem connecting to Facebook", Toast.LENGTH_SHORT).show();
                Log.e(TAG, "Facebook login error " + error);
            }
        });
    }

Answer 4

You can also use GraphResponse object to get the values

LoginManager.getInstance().registerCallback(callbackManager,
    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) {
                            Log.v("LoginActivity", response.toString());
                            try {
                                // Application code
                                String email = response.getJSONObject().getString("email");
                                txtStatus.setText("Login Success \n" + email);
                            }catch(Exception e){
                                e.printStackTrace();;
                            }
                        }
                    });
            Bundle parameters = new Bundle();
            parameters.putString("fields", "id,name,email,gender,birthday");
            request.setParameters(parameters);
            request.executeAsync();
        }

        @Override
        public void onCancel()
        {
            txtStatus.setText("==============Login Cancelled=============");
        }

        @Override
        public void onError(FacebookException exception)
        {
            txtStatus.setText("==============Login Error=================");
            exception.printStackTrace();
        }
    });

Answer 5

Putting this code:

btnLoginFb.setReadPermissions(Arrays.asList("email"));

before

RegisterCallback

should solve the problem.

Answer 6

I guess getting email permissions can help..

LoginManager.getInstance().logInWithReadPermissions(
fragmentOrActivity,
Arrays.asList("email"));

Answer 7

Information

If you are giving any permission to get an email address. then, Facebook can not every time gives you email address or some other details.

When, Facebook user is not signup with his email-address then Facebook can't provide you his email address.

If user is login with Facebook using email address then Facebook will provides email to you.

Facebook SDK provide only public details.

check a login with Facebook using email-address and also with phone number through.