無法從GraphRequest類Facebook的

Question

這裏獲取電子郵件是我fbLoginFragment.java中，我想獲得登錄使用Facebook的SDK 4.9.0用戶 - ：

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); 
        } 
       } 
      }); 

     } 
    } 

我已經給出了權限也是，但我沒有在JSON對象中獲取電子郵件和出生日期。

這裏是我的Logcat-的結果：

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"} 

Answer 1

您需要添加權限爲List象下面這樣：

.... 
List<String> permissions = new ArrayList<String>(); 
permissions.add("public_profile"); 
permissions.add("email"); 
permissions.add("user_birthday"); 
permissions.add("user_friends"); 

loginButton.setReadPermissions(permissions); 
.... 

檢查Facebook的DOC：public void setReadPermissions(List permissions)