Facebook Android SDK 4.5.0 获取邮箱地址

Question

我目前正在创建一个测试应用程序来测试使用最新的 facebook SDK 来更新我们现有的应用程序问题是我需要获取电子邮件地址，我知道这取决于用户是否在他的帐户中提供了一个。现在我用来测试的帐户确实提供了一个，但出于未知原因，facebook SDK 仅提供 user_id 和帐户的全名，没有其他任何内容。我对此感到困惑，因为 SDK3 及更高版本提供的信息比更新的 SDK4 多，而且我不知道如何获取电子邮件，因为到目前为止我看到的所有答案都没有在我这边提供电子邮件。到目前为止，这是我的代码：

登录按钮

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

登录管理器回调：

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();
            }
        });

以及对用户个人资料的请求：

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();
    }

JSON 响应 returns 只有我帐户的 ID 和全名，但不包括电子邮件。我错过了什么吗？

Answer 1

不是获取 graphResponse 的值，而是使用 JSONObject me

访问电子邮件

userEmail = jsonObject.getString("email");

Answer 2

您需要向 facebook 请求参数才能获取您的数据。在这里，我 post 我获取 facebook 数据的函数。关键在这一行：

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

希望对你有帮助。

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 3

希望对你有帮助

/*** 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

您还可以使用 GraphResponse 对象来获取值

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

输入这段代码：

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

之前

RegisterCallback

应该可以解决问题。

Answer 6

我想获得电子邮件权限会有所帮助..

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

Answer 7

Information

如果您授予任何获取电子邮件地址的权限。那么，Facebook 不可能每次都给你电子邮件地址或其他一些详细信息。

当 Facebook 用户未使用他的电子邮件地址注册时，Facebook 无法向您提供他的电子邮件地址。

如果用户使用电子邮件地址登录 Facebook，那么 Facebook 将向您提供电子邮件。

Facebook SDK 仅提供 public 详细信息。

使用电子邮件地址和 phone 号码检查 Facebook 登录。

Facebook Android SDK 4.5.0 获取邮箱地址

Facebook Android SDK 4.5.0 get email address

android

facebook

facebook-graph-api

facebook-sdk-4.x