23

我正在开发一个 Android 应用程序，其中任何使用我们的应用程序登录到 Facebook 的 Android 用户，我需要从 Facebook 中提取他的照片、他的性别、他的全名。我为此使用 Facebook SDK。

在 Facebook SDK 的帮助下，我可以登录 Facebook，但我不知道如何从 facebook 中提取他的照片、性别和全名？

下面是我用来登录 Facebook 的代码。我跟着这个教程

public class SessionLoginFragment extends Fragment {

    private static final String URL_PREFIX_FRIENDS = "https://graph.facebook.com/me/friends?access_token=";

    private TextView textInstructionsOrLink;
    private Button buttonLoginLogout;
    private Session.StatusCallback statusCallback = new SessionStatusCallback();

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment, container, false);

    buttonLoginLogout = (Button) view.findViewById(R.id.buttonLoginLogout);
    textInstructionsOrLink = (TextView) view.findViewById(R.id.instructionsOrLink);

    Settings.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS);

    Session session = Session.getActiveSession();
    if (session == null) {
        if (savedInstanceState != null) {
        session = Session.restoreSession(getActivity(), null, statusCallback,
            savedInstanceState);
        }
        if (session == null) {
        session = new Session(getActivity());
        }
        Session.setActiveSession(session);
        if (session.getState().equals(SessionState.CREATED_TOKEN_LOADED)) {
        session.openForRead(new Session.OpenRequest(this).setCallback(statusCallback));
        }
    }

    updateView();

    return view;
    }

    @Override
    public void onStart() {
    super.onStart();
    Session.getActiveSession().addCallback(statusCallback);
    }

    @Override
    public void onStop() {
    super.onStop();
    Session.getActiveSession().removeCallback(statusCallback);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    Session.getActiveSession().onActivityResult(getActivity(), requestCode, resultCode, data);
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    Session session = Session.getActiveSession();
    Session.saveSession(session, outState);
    }

    private void updateView() {
    Session session = Session.getActiveSession();
    if (session.isOpened()) {
        Log.d("Hello", URL_PREFIX_FRIENDS + session.getAccessToken());
        Intent i = new Intent(getActivity(), ThesisProjectAndroid.class);
        startActivity(i);

    } else {
        Log.d("Hello", "Login Failed");
        textInstructionsOrLink.setText(R.string.instructions);
        buttonLoginLogout.setText(R.string.login);
        buttonLoginLogout.setOnClickListener(new View.OnClickListener() {
        public void onClick(View view) {
            onClickLogin();
        }
        });
    }
    }

    private void onClickLogin() {
    Session session = Session.getActiveSession();
    if (!session.isOpened() && !session.isClosed()) {
        session.openForRead(new Session.OpenRequest(this).setCallback(statusCallback));
    } else {
        Session.openActiveSession(getActivity(), this, true, statusCallback);
    }
    }

    private void onClickLogout() {
    Session session = Session.getActiveSession();
    if (!session.isClosed()) {
        session.closeAndClearTokenInformation();
    }
    }

    private class SessionStatusCallback implements Session.StatusCallback {
    @Override
    public void call(Session session, SessionState state, Exception exception) {
        updateView();
    }
    }
}

谁能告诉我在上面的课程中我需要在哪里进行更改以获得我需要的所有三个信息。据我所知，如果我能够获得该人的 facebook 唯一 ID，我可以获得我猜想的所有信息。有什么想法吗？

4

6 回答 6

32

使用新的 api 和您的 facebook 自定义按钮，您可以使用以下代码：

在你的 gradle 文件中放下面的 gradle：

 compile 'com.facebook.android:facebook-android-sdk:4.20.0'

  Newer sdk does not need initializaion .

    private CallbackManager callbackManager;
    @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    FacebookSdk.sdkInitialize(LoginActivity.this);//Is now depricated
    setContentView(R.layout.activity_login);
    callbackManager = CallbackManager.Factory.create();
    }

活动结果：

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

按钮点击：

   @Override
    public void onClick(View v) {
    switch (v.getId())
    {
        case R.id.btn_f_sign_in_login:
            LoginManager.getInstance().logInWithReadPermissions(
                    this,
                    Arrays.asList("user_friends", "email", "public_profile"));

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

                        @Override
                        public void onCancel() {
                        }

                        @Override
                        public void onError(FacebookException exception) {
                        }
                    });
            break;
    }
}

设置Facebook数据：

     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 gender = response.getJSONObject().getString("gender");



                        Profile profile = Profile.getCurrentProfile();
                        String id = profile.getId();
                        String link = profile.getLinkUri().toString();
                        Log.i("Link",link);
                        if (Profile.getCurrentProfile()!=null)
                        {
                            Log.i("Login", "ProfilePic" + Profile.getCurrentProfile().getProfilePictureUri(200, 200));
                        }

                       Log.i("Login" + "Email", email);
                        Log.i("Login"+ "FirstName", firstName);
                        Log.i("Login" + "LastName", lastName);
                        Log.i("Login" + "Gender", gender);


                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            });
    Bundle parameters = new Bundle();
    parameters.putString("fields", "id,email,first_name,last_name,gender");
    request.setParameters(parameters);
    request.executeAsync();
}

获取下载您应用的 Facebook 好友：

替换parameters.putString("fields", "id,email,first_name,last_name");

with parameters.putString("fields", "id,email,first_name,last_name,friends");

添加以下逻辑以获取朋友数据

                if (object.has("friends")) {
                  JSONObject friend = object.getJSONObject("friends");
                  JSONArray data = friend.getJSONArray("data");
                  for (int i=0;i<data.length();i++){
                 Log.i("idddd",data.getJSONObject(i).getString("id"));
                  }
             }
于 2016-02-09T06:03:57.160 回答
23

在您的StatusCallback函数中，您可以从GraphUser对象中获取详细信息

private class SessionStatusCallback implements Session.StatusCallback {
    private String fbAccessToken;

    @Override
    public void call(Session session, SessionState state, Exception exception) {
        updateView();
        if (session.isOpened()) {
            fbAccessToken = session.getAccessToken();
            // make request to get facebook user info
            Request.executeMeRequestAsync(session, new Request.GraphUserCallback() {
                @Override
                public void onCompleted(GraphUser user, Response response) {
                    Log.i("fb", "fb user: "+ user.toString());

                    String fbId = user.getId();
                    String fbAccessToken = fbAccessToken;
                    String fbName = user.getName();
                    String gender = user.asMap().get("gender").toString();
                    String email = user.asMap().get("email").toString();

                    Log.i("fb", userProfile.getEmail());
                }
            });
        }
    }
}
于 2013-06-30T16:42:45.943 回答
6

使用新的 API

private void importFbProfilePhoto() {

    if (AccessToken.getCurrentAccessToken() != null) {

        GraphRequest request = GraphRequest.newMeRequest(
                AccessToken.getCurrentAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
                    @Override
                    public void onCompleted(JSONObject me, GraphResponse response) {

                        if (AccessToken.getCurrentAccessToken() != null) {

                            if (me != null) {

                                String profileImageUrl = ImageRequest.getProfilePictureUri(me.optString("id"), 500, 500).toString();
                                Log.i(LOG_TAG, profileImageUrl);

                            }
                        }
                    }
                });
        GraphRequest.executeBatchAsync(request);
    }
}
于 2016-01-26T11:08:49.017 回答
1

请参阅以下教程

您必须请求获取 GraphUser-Object。使用此对象，您可以获得所需的信息： GraphUseruser.getName();等user.getId();。

于 2013-01-26T22:48:06.070 回答
1

使用 Sdk v4.28 和登录用户作为问题，很容易在Profile.getCurrentProfile()内部（或之后）调用成功回调LoginManager：

facebookCallbackManager = CallbackManager.Factory.create();
LoginManager.getInstance().registerCallback(facebookCallbackManager,
            new FacebookCallback<LoginResult>() {
                @Override
                public void onSuccess(LoginResult loginResult{ 
                    //Profile.getCurrentProfile()
                }
                @Override
                public void onCancel() {
                }
                @Override
                public void onError(FacebookException exception) {
                }
            });

您可以使用Graph Api，但文档本身说在上面使用登录用户。

于 2017-11-27T12:28:31.570 回答
0

如果您将获得空配置文件，则使用 Profile Tracker if(Profile.getCurrentProfile() == null) {

            mProfileTracker = new ProfileTracker() {
                @Override
                protected void onCurrentProfileChanged(Profile profile, Profile profile2) {
                    // profile2 is the new profile
                    Log.d("facebook - profile", profile2.getFirstName());
                    profile_firstname=profile2.getFirstName();
                    profile_lastname=profile2.getLastName();
                   // Toast.makeText(LoginActivity.this, "User ID : "+ profile2.getFirstName(), Toast.LENGTH_LONG).show();
                    mProfileTracker.stopTracking();
                }
            };

        }
于 2017-05-24T18:36:41.177 回答