小贝子编程

安卓Facebook 4.0 SDK如何获取电子邮件，出生日期和性别的用户



我正在使用以下代码。我想要用户的出生日期，电子邮件和性别。请帮忙。如何检索这些数据？

这是我在碎片里的onViewCreated()。

@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
    // Setup TextView.
    mTextDetails = (TextView) view.findViewById(R.id.text_details);
    // Set up Login Button.
    LoginButton mButtonLogin = (LoginButton) view.findViewById(R.id.login_button);
    // setFragment only if you are using it inside a Fragment.
    mButtonLogin.setFragment(this);
    mButtonLogin.setReadPermissions("user_friends");
    mButtonLogin.setReadPermissions("public_profile");
    mButtonLogin.setReadPermissions("email");
    mButtonLogin.setReadPermissions("user_birthday");
    // Register a callback method when Login Button is Clicked.
    mButtonLogin.registerCallback(mCallbackManager, mFacebookCallback);
}

这是我的回调方法。

private FacebookCallback<LoginResult> mFacebookCallback = new FacebookCallback<LoginResult>() {
    @Override
    public void onSuccess(LoginResult loginResult) {
        Log.d("Shreks Fragment", "onSuccess");

        Profile profile = Profile.getCurrentProfile();
        Log.d("Shreks Fragment onSuccess", "" +profile);
        // Get User Name
        mTextDetails.setText(profile.getName() + "");
    }

    @Override
    public void onCancel() {
        Log.d("Shreks Fragmnt", "onCancel");
    }
    @Override
    public void onError(FacebookException e) {
        Log.d("Shreks Fragment", "onError " + e);
    }
};

这不是设置权限的正确方法，因为每次方法调用都会覆盖权限。

替换此：

mButtonLogin.setReadPermissions("user_friends");
mButtonLogin.setReadPermissions("public_profile");
mButtonLogin.setReadPermissions("email");
mButtonLogin.setReadPermissions("user_birthday");

使用以下内容，作为方法setReadPermissions()接受ArrayList:

loginButton.setReadPermissions(Arrays.asList(
        "public_profile", "email", "user_birthday", "user_friends"));

这里还有如何查询额外的数据GraphRequest:

private LoginButton loginButton;
private CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    loginButton = (LoginButton) findViewById(R.id.login_button);
    loginButton.setReadPermissions(Arrays.asList(
            "public_profile", "email", "user_birthday", "user_friends"));
    callbackManager = CallbackManager.Factory.create();
    // Callback registration
    loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
        @Override
        public void onSuccess(LoginResult loginResult) {
            // App code
            GraphRequest request = GraphRequest.newMeRequest(
                    loginResult.getAccessToken(),
                    new GraphRequest.GraphJSONObjectCallback() {
                        @Override
                        public void onCompleted(JSONObject object, GraphResponse response) {
                            Log.v("LoginActivity", response.toString());
                            // Application code
                            String email = object.getString("email");
                            String birthday = object.getString("birthday"); // 01/31/1980 format
                        }
                    });
            Bundle parameters = new Bundle();
            parameters.putString("fields", "id,name,email,gender,birthday");
            request.setParameters(parameters);
            request.executeAsync();

        }
        @Override
        public void onCancel() {
            // App code
            Log.v("LoginActivity", "cancel");
        }
        @Override
        public void onError(FacebookException exception) {
            // App code
            Log.v("LoginActivity", exception.getCause().toString());
        }
    });
}

编辑：

一个可能的问题是，Facebook认为你的电子邮件无效。若要测试它，请使用Graph API资源管理器并尝试获取它。如果即使在那里也无法获取电子邮件，请在配置文件设置中更改它，然后重试。对于一些评论我答案的开发人员来说，这种方法解决了这个问题。

您不会在onSuccess()中获得Profile，您需要在注册回调的同时实现ProfileTracker

mProfileTracker = new ProfileTracker() {
    @Override
    protected void onCurrentProfileChanged(Profile oldProfile, Profile newProfile) {
        // Fetch user details from New Profile
    }
};

另外，不要忘记处理配置文件跟踪器的启动和停止

现在您将有一个从中获取AccessToken的配置文件（解决了空配置文件的问题）。你只需要使用"https://developers.facebook.com/docs/android/graph#userdata"以获取任何数据。

登录后

private void getFbInfo() {
    GraphRequest request = GraphRequest.newMeRequest(
            AccessToken.getCurrentAccessToken(),
            new GraphRequest.GraphJSONObjectCallback() {
                @Override
                public void onCompleted(
                        JSONObject object,
                        GraphResponse response) {
                    try {
                        Log.d(LOG_TAG, "fb json object: " + object);
                        Log.d(LOG_TAG, "fb graph response: " + response);
                        String id = object.getString("id");
                        String first_name = object.getString("first_name");
                        String last_name = object.getString("last_name");
                        String gender = object.getString("gender");
                        String birthday = object.getString("birthday");
                        String image_url = "http://graph.facebook.com/" + id + "/picture?type=large";
                        String email;
                        if (object.has("email")) {
                            email = object.getString("email");
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            });
    Bundle parameters = new Bundle();
    parameters.putString("fields", "id,first_name,last_name,email,gender,birthday"); // id,first_name,last_name,email,gender,birthday,cover,picture.type(large)
    request.setParameters(parameters);
    request.executeAsync();
}

以下是查找电子邮件id、名称和配置文件url等的代码

    private CallbackManager callbackManager;
    protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_sign_in);
//TODO on click of fb custom button call handleFBLogin()
     callbackManager = CallbackManager.Factory.create();
    }
    private void handleFBLogin() {
            AccessToken accessToken = AccessToken.getCurrentAccessToken();
            boolean isLoggedIn = accessToken != null && !accessToken.isExpired();
            if (isLoggedIn && Store.isUserExists(ActivitySignIn.this)) {
                goToHome();
                return;
            }
            LoginManager.getInstance().logInWithReadPermissions(ActivitySignIn.this, Arrays.asList("public_profile", "email"));
            LoginManager.getInstance().registerCallback(callbackManager,
                    new FacebookCallback<LoginResult>() {
                        @Override
                        public void onSuccess(final LoginResult loginResult) {
                            runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    setFacebookData(loginResult);
                                }
                            });
                        }
                        @Override
                        public void onCancel() {
                            Toast.makeText(ActivitySignIn.this, "CANCELED", Toast.LENGTH_SHORT).show();
                        }
                        @Override
                        public void onError(FacebookException exception) {
                            Toast.makeText(ActivitySignIn.this, "ERROR" + exception.toString(), Toast.LENGTH_SHORT).show();
                        }
                    });
        }
private void setFacebookData(final LoginResult loginResult) {
        GraphRequest request = GraphRequest.newMeRequest(
                loginResult.getAccessToken(),
                new GraphRequest.GraphJSONObjectCallback() {
                    @Override
                    public void onCompleted(JSONObject object, GraphResponse response) {
                        // Application code
                        try {
                            Log.i("Response", response.toString());
                            String email = response.getJSONObject().getString("email");
                            String firstName = response.getJSONObject().getString("first_name");
                            String lastName = response.getJSONObject().getString("last_name");
                            String profileURL = "";
                            if (Profile.getCurrentProfile() != null) {
                                profileURL = ImageRequest.getProfilePictureUri(Profile.getCurrentProfile().getId(), 400, 400).toString();
                            }
                           //TODO put your code here
                        } catch (JSONException e) {
                            Toast.makeText(ActivitySignIn.this, R.string.error_occurred_try_again, Toast.LENGTH_SHORT).show();
                        }
                    }
                });
        Bundle parameters = new Bundle();
        parameters.putString("fields", "id,email,first_name,last_name");
        request.setParameters(parameters);
        request.executeAsync();
    }
      protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            callbackManager.onActivityResult(requestCode, resultCode, data);
    }

以下是一个有效的解决方案（2019）：将此代码放入登录逻辑中；

 GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
                @Override
                public void onCompleted(JSONObject json, GraphResponse response) {
                    // Application code
                    if (response.getError() != null) {
                        System.out.println("ERROR");
                    } else {
                        System.out.println("Success");
                        String jsonresult = String.valueOf(json);
                        System.out.println("JSON Result" + jsonresult);
                        String fbUserId = json.optString("id");
                        String fbUserFirstName = json.optString("name");
                        String fbUserEmail = json.optString("email");
                        //String fbUserProfilePics = "http://graph.facebook.com/" + fbUserId + "/picture?type=large";
                        Log.d("SignUpActivity", "Email: " + fbUserEmail + "nName: " + fbUserFirstName + "nID: " + fbUserId);
                    }
                    Log.d("SignUpActivity", response.toString());
                }
            });
            Bundle parameters = new Bundle();
            parameters.putString("fields", "id,name,email,gender, birthday");
            request.setParameters(parameters);
            request.executeAsync();
        }
        @Override
        public void onCancel() {
            setResult(RESULT_CANCELED);
            Toast.makeText(SignUpActivity.this, "Login Attempt Cancelled", Toast.LENGTH_SHORT).show();
        }
        @Override
        public void onError(FacebookException error) {
            Toast.makeText(SignUpActivity.this, "An Error Occurred", Toast.LENGTH_LONG).show();
            error.printStackTrace();
        }
    });

您可以使用GraphRequest类向Facebook Graph API发出调用以获取用户信息。看见https://developers.facebook.com/docs/android/graph了解更多信息。

这对我有用，希望能帮助别人（使用我自己的按钮而不是FB登录按钮）

CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    FacebookSdk.sdkInitialize(getApplicationContext());
    setContentView(R.layout.activity_sign_in_user);

     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) {
                    try {
                        Log.i("RESAULTS : ", object.getString("email"));
                    }catch (Exception e){
                    }
                }
            });
            Bundle parameters = new Bundle();
            parameters.putString("fields", "email");
            request.setParameters(parameters);
            request.executeAsync();
        }
        @Override
        public void onCancel() {
        }
        @Override
        public void onError(FacebookException error) {
            Log.i("RESAULTS : ", error.getMessage());
        }
    });

}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    callbackManager.onActivityResult(requestCode, resultCode, data);
    super.onActivityResult(requestCode, resultCode, data);
}

boolean isEmailValid(CharSequence email) {
    return android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches();
}
public void signupwith_facebook(View view) {
    LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("public_profile","email"));
}
}

在点击按钮上添加此行

登录按钮.setReadPermissions（Arrays.asList("public_profile"、"email"、"user_birthday"、"user_friends"）；

使用Profile类的FB静态方法getCurrentProfile（）来检索这些信息。

 Profile profile = Profile.getCurrentProfile();
 String firstName = profile.getFirstName());
 System.out.println(profile.getProfilePictureUri(20,20));
 System.out.println(profile.getLinkUri());

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