無法從Facebook獲取姓名和電子郵件

我想從Facebook登錄名獲取姓名和電子郵件。無法從Facebook獲取姓名和電子郵件

我使用：compile 'com.facebook.android:facebook-android-sdk:4.+'

我能進onSuccess但代碼不進入GraphRequest，我想這就是爲什麼我不能得到的姓名和電子郵件（我也想獲得簡介圖片）

我得到的自動生成的代碼（GraphRequest）從Facebook開發瀏覽器阿比圖

public class LoginActivity 
{ 

LoginButton buttonLoginFacebook; 

    @Nullable 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     setContentView(R.layout.login); 

     buttonLoginFacebook = (LoginButton) findViewById(R.id.connectWithFbButton); 

     buttonLoginFacebook.setReadPermissions(Arrays.asList(
       "public_profile", "email")); 

     FacebookSdk.setIsDebugEnabled(true); 
     FacebookSdk.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS); 
     FacebookSdk.addLoggingBehavior(LoggingBehavior.REQUESTS); 


     buttonLoginFacebook.setOnClickListener(this); 


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


      @Override 
      public void onSuccess(LoginResult loginResult) { 


      //----->THE CODE JUMPS FROM HERE 
      GraphRequest request = GraphRequest.newMeRequest(
         loginResult.getAccessToken(), 
         new GraphRequest.GraphJSONObjectCallback() { 
          @Override 
          public void onCompleted(JSONObject object, GraphResponse response) { 

           mensajeFACEBOOK="TRYING TO GET NAME"; 
          } 
         }); 

       //----->TO HERE 
       Bundle parameters = new Bundle(); 
       parameters.putString("fields", "id,name,email,first_name,last_name"); 
       request.setParameters(parameters); 
       request.executeAsync(); 


       Intent intent = new Intent(getApplicationContext(), MainActivity.class); 
       startActivity(intent); 

      } 

      @Override 
      public void onCancel() {  
      }  
      @Override 
      public void onError(FacebookException error) {  
      } 
     }); 


    } 


}

來源

2017-08-17 Pierre

這是我要做的事。希望這可以幫助。

private void registerCallBackMethod(){ 

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

        final String accessToken = loginResult.getAccessToken().getUserId(); 

        GraphRequest request = GraphRequest.newMeRequest(
          loginResult.getAccessToken(), 
          new GraphRequest.GraphJSONObjectCallback() { 
           @Override 
           public void onCompleted(JSONObject jsonObject, 
                 GraphResponse response) { 

            // Getting FB User Data and checking for null 
            Bundle facebookData = getFacebookData(jsonObject); 
            String email = ""; 
            String first_name = ""; 
            String last_name = ""; 
            String profile_pic = ""; 

            if (facebookData.getString("email") != null && !TextUtils.isEmpty(facebookData.getString("email"))) 
             email = facebookData.getString("email"); 
            else 
             email = ""; 

            if (facebookData.getString("first_name") != null && !TextUtils.isEmpty(facebookData.getString("first_name"))) 
             first_name = facebookData.getString("first_name"); 
            else 
             first_name = ""; 

            if (facebookData.getString("last_name") != null && !TextUtils.isEmpty(facebookData.getString("last_name"))) 
             last_name = facebookData.getString("last_name"); 
            else 
             last_name = ""; 

            if (facebookData.getString("profile_pic") != null && !TextUtils.isEmpty(facebookData.getString("profile_pic"))) 
             profile_pic = facebookData.getString("profile_pic"); 
            else 
             profile_pic = ""; 


            sendValues(first_name+" "+last_name,email, "", "", accessToken, "Facebook",profile_pic); 

           } 
          }); 

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


       @Override 
       public void onCancel() { 
        Log.d("TAG", "Login attempt cancelled."); 
       } 

       @Override 
       public void onError (FacebookException e){ 
        e.printStackTrace(); 
        Log.d("TAG", "Login attempt failed."); 
        deleteAccessToken(); 
       } 
      } 
    ); 

} 


private Bundle getFacebookData(JSONObject object) { 
    Bundle bundle = new Bundle(); 

    try { 
     String id = object.getString("id"); 
     URL profile_pic; 
     try { 
      profile_pic = new URL("https://graph.facebook.com/" + id + "/picture?type=large"); 
      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")); 


    } catch (Exception e) { 
     Log.d("TAG", "BUNDLE Exception : "+e.toString()); 
    } 

    return bundle; 
} 

private void deleteAccessToken() { 
    AccessTokenTracker accessTokenTracker = new AccessTokenTracker() { 
     @Override 
     protected void onCurrentAccessTokenChanged(
       AccessToken oldAccessToken, 
       AccessToken currentAccessToken) { 

      if (currentAccessToken == null){ 
       //User logged out 

       LoginManager.getInstance().logOut(); 
      } 
     } 
    }; 
}

來源

2017-08-17 18:52:10

我應該在哪裏粘貼方法registerCallBackMethod（）？在OnCreate裏面？ – Pierre

和sendValues呢？你在哪裏宣佈它？ – Pierre

是的，在onCreate和sendValues只是一些API調用。別擔心。 –

其實GraphRequest.executeAsync()是異步方法有回調onCompleted所以閱讀你需要做的是在回調中的數據。

buttonLoginFacebook.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) { 

           //Read the data you need from the GraphResponse here like this: 

           try { 
            String firstName = response.getJSONObject().getString("first_name"); 
            String lastName = response.getJSONObject().getString("last_name"); 
            String email = response.getJSONObject().getString("email"); 
            String id = response.getJSONObject().getString("id"); 
            String picture = response.getJSONObject().getJSONObject("picture").getJSONObject("data").getString("url"); 
           } catch (JSONException e) { 
            e.printStackTrace(); 
           } 


           Intent intent = new Intent(getApplicationContext(), MainActivity.class); 
           startActivity(intent); 
          } 
         }); 

       Bundle parameters = new Bundle(); 
       parameters.putString("fields", "id,name,email,first_name,last_name,picture.width(150).height(150)"); 
       request.setParameters(parameters); 
       request.executeAsync(); 

      } 

      @Override 
      public void onCancel() { 
      } 

      @Override 
      public void onError(FacebookException error) { 
      } 
     });

還包括資料圖片領域picture.width(150).height(150)你問

來源

2017-08-18 10:48:12

無法從Facebook獲取姓名和電子郵件

回答

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