Question

我正在尝试在我的应用中实现Facebook登录功能，并在获得发布权限后获取令牌。

为此，我按照以下步骤操作。

在Facebook上创建应用（填写所有详细信息，如应用名称，哈希键（发布），类名，包名称，单点登录）
App现在可供所有用户使用。
然后我在manifest.xml中使用app id

如果在我的手机上安装Native Facebook应用程序，一切都正常。但是如果本机应用程序没有安装，那么它会在填写登录信息后打开facebook webview，它要求我在点击确定按钮后授权再次要求我登录。这个过程将继续下去。

****登录并允许应用程序权限后，它不会回到我的屏幕，但它要求再次登录我****。

这是我的截屏。

enter image description here

这是第二次屏幕截图

enter image description here

点击确定然后再次要求我登录。这是循环登录 - 授权 - 登录..
这是我的完整代码：

我正在使用自己的按钮，所以我没有添加xml代码。

  public class FBActivity extends Activity {
Session.StatusCallback statusCallback = new SessionStatusCallback();

@Override
public void onCreate(Bundle savedInstanceState) {       
    super.onCreate(savedInstanceState);
    //setContentView(R.layout.registartionwithmultiple);
    printHashKey();
    bundle = savedInstanceState;
    permissions = new ArrayList<String>();
    readpermissions = new ArrayList<String>();

    permissions.add("publish_actions");
    readpermissions.add("email");
    executeFacebookLogin();     
}       

private void executeFacebookLogin() {
     Settings.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS);         
    Session session = Session.getActiveSession();
    if(session == null) {
        if(bundle != null) {
            Log.i("TEST","RESTORING FROM BUNDLE");
            session = Session.restoreSession(this, null, statusCallback, bundle);
        }
        if(session == null) {
            Log.i("TEST","CREATE NEW SESSION");
            session = new Session(this);
        }
        Session.setActiveSession(session);          
        session.addCallback(statusCallback);
        if(session.getState().equals(SessionState.CREATED_TOKEN_LOADED)) {

            session.openForRead(new Session.OpenRequest(this).setCallback(statusCallback).setPermissions(readpermissions));

        } 
    }

    if(session.isClosed()) {
        session.closeAndClearTokenInformation();
        Session.setActiveSession(null);
    }
    if(!session.isOpened()) {

        session.openForRead(new Session.OpenRequest(this).setCallback(statusCallback).setPermissions(readpermissions));
        Log.i("FB Login ","Open for Publish");
    } else {
        Session.openActiveSession(this, true, statusCallback);
    }

}


private class SessionStatusCallback implements Session.StatusCallback {

    @Override
    public void call(Session session, SessionState state, Exception exception) {
        //Check if Session is Opened or not
        processSessionStatus(session, state, exception);
    }
}

@SuppressWarnings("deprecation")
public void processSessionStatus(Session session, SessionState state, Exception exception) {
    Log.i("TEST","Session in process session "+session);
    if(session != null && session.isOpened()) {

        if(session.getPermissions().contains("publish_actions")) {
            //Show Progress Dialog 
            dialog = new ProgressDialog(this);
            dialog.setMessage("Loggin in..");
            dialog.show();
            Request.executeMeRequestAsync(session, new Request.GraphUserCallback() {

                @Override
                public void onCompleted(GraphUser user, Response response) {


                    if (dialog!=null && dialog.isShowing()) {
                        dialog.dismiss();
                    }
                    if(user != null) {
                        Map<String, Object> responseMap = new HashMap<String, Object>();
                        GraphObject graphObject = response.getGraphObject();
                        responseMap = graphObject.asMap();
                        Log.i("FbLogin", "Response Map KeySet - " + responseMap.keySet());
                        // TODO : Get Email responseMap.get("email"); 

                        fb_id = user.getId();
                        fb_email = null;
                        user.getBirthday();
                        fb_userName = user.getUsername();
                        fb_fullname = user.getFirstName() +" "+user.getLastName();

                        String name = (String) responseMap.get("name");
                        if (responseMap.get("email")!=null) {
                            fb_email = responseMap.get("email").toString();
                            Log.i("TEST", "FB_ID="+fb_id +"email="+fb_email+"name="+name+"user_name="+user.getUsername()+"birthday="+user.getBirthday());
                            Session session = Session.getActiveSession();
                            tokenKey = session.getAccessToken();
                            SharedPreferenceStoring myPrefsClass = new SharedPreferenceStoring();
                            myPrefsClass.storingFBToken(FBActivity.this, tokenKey);

                            finish();

                        }
                        else {
                            //Clear all session info & ask user to login again
                            Session session = Session.getActiveSession();                               
                            if(session != null) {
                                session.closeAndClearTokenInformation();
                            }
                        }
                    }
                }
            });
        } else {

            session.requestNewPublishPermissions(new Session.NewPermissionsRequest(FBActivity.this, permissions));

        }
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    Log.i("TEST","Activity result");
    super.onActivityResult(requestCode, resultCode, data);
    Log.d("FbLogin", "Result Code is - " + resultCode +"");
    Session.getActiveSession().onActivityResult(FBActivity.this, requestCode, resultCode, data);
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    // TODO Save current session
    super.onSaveInstanceState(outState);
    Session session = Session.getActiveSession();
    Session.saveSession(session, outState);
}

}

我也得到哈希键..这是哈希键的代码

private void printHashKey() {
    try {
        PackageInfo info = getPackageManager().getPackageInfo(
                "com.myapp",
                PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.d("KeyHash:",
                    Base64.encodeToString(md.digest(), Base64.DEFAULT));
        }
    } catch (NameNotFoundException e) {

    } catch (NoSuchAlgorithmException e) {

    }
}

我还在Internet Permission和AndroidManifest.xml为Facebook添加了meta-data。

希望所有这些信息都足够，如果需要更多的东西肯定会更新我的问题。

请给我任何参考或提示。

Answer 1

你需要一个库easyfacebookandroidsdk.jar并在你的项目中构建它

使用此代码：

public class MainActivity extends Activity implements LoginListener{

EditText et1;
 private FBLoginManager fbLoginManager;
Button b;

//replace it with your own Facebook App ID
public final String FacebookTesting="218874471621782";

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et1=(EditText)findViewById(R.id.editText1);
b=(Button)findViewById(R.id.button1);
connectToFacebook();

}


public void connectToFacebook(){

  //read about Facebook Permissions here:
  //http://developers.facebook.com/docs/reference/api/permissions/
  String permissions[] = {
//          "user_about_me",  
//          "user_activities",
//          "user_birthday",
//          "user_checkins",
//          "user_education_history",   
//          "user_events",
//          "user_groups",
//          "user_hometown",
//          "user_interests",
//          "user_likes",
//          "user_location",
//          "user_notes",
//            "user_online_presence",
//          "user_photo_video_tags",
//          "user_photos",
//          "user_relationships",
//          "user_relationship_details",
//         "user_religion_politics",
//         "user_status", 
//         "user_videos",
//          "user_website",
//          "user_work_history",
//          "email",
//
//          "read_friendlists",
//          "read_insights",
//          "read_mailbox",
//          "read_requests",
//          "read_stream",
//          "xmpp_login",
//          "ads_management",
//          "create_event",
//          "manage_friendlists",
//          "manage_notifications",
//          "offline_access",
//          "publish_checkins",
    "publish_stream",
//          "rsvp_event",
//          "sms",
    //"publish_actions",

//          "manage_pages"

  };

  fbLoginManager = new FBLoginManager(this,
    R.layout.activity_main, 
    FacebookTesting, 
    permissions);

  if(fbLoginManager.existsSavedFacebook()){
   fbLoginManager.loadFacebook();
  }
  else{
   fbLoginManager.login();
  }
 }





@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}


 @Override
 protected void onActivityResult(int requestCode, int resultCode, android.content.Intent data){


 fbLoginManager.loginSuccess(data);
 }

public void loginSuccess(Facebook facebook) {
//  GraphApi graphApi = new GraphApi(facebook);
 new getDataBackgroundThread().execute(facebook);
//    User user = new User();

//    try{
//     user = graphApi.getMyAccountInfo();
//
//     //update your status if logged in
//     graphApi.setStatus("Hello, world!");
//    } catch(EasyFacebookError e){
//     Log.d("TAG: ", e.toString());
//    }

//    fbLoginManager.displayToast("Hey, " + user.getFirst_name() + "! Login success!");
}

@Override
public void logoutSuccess() {
// TODO Auto-generated method stub

}


@Override
public void loginFail() {
// TODO Auto-generated method stub

}



 class getDataBackgroundThread extends AsyncTask<Facebook, Void, String> {

    private Exception exception;


    protected String doInBackground(Facebook... urls) {
        try{
             GraphApi graphApi = new GraphApi(urls[0]);

              User user = new User();

              try{
            //   user = graphApi.getMyAccountInfo();

               //update your status if logged in
               //graphApi.setStatus("My android App "+"VivekAppTest");
                  graphApi.setStatus("Hello "+"VivekAppTest");
              } catch(EasyFacebookError e){
               Log.d("TAG: ", e.toString());
              }
        return "posted";
        }
        catch (Exception e) {
            // TODO: handle exception
            return null;
        }


}
    protected void onPostExecute(String ipr) {
        // TODO: check this.exception 
        // TODO: do something with the feed
//
//               Intent i=new Intent(getApplicationContext(),MainActivity.class);
//               startActivity(i); 
//               finish();
//              Toast toast=Toast.makeText(getApplicationContext(),"Post Successful !", 1);
//              toast.setGravity(Gravity.TOP|Gravity.CENTER_HORIZONTAL,0, 130);
//              toast.show();
//          
    }
 }
}

获取您的Facebook App id＆amp;在代码中替换它。每当我必须在FB上发布文本时，我总是使用这段代码。

在清单中给予互联网许可 <uses-permission android:name="android.permission.INTERNET"/>

多数人

干杯

Answer 2

所以我想告诉你的是，你必须找到关键哈希值并将其放在facebook控制台中，使用下面的代码获取Key Hash值：

try {
               PackageInfo info = getPackageManager().getPackageInfo("com.key", PackageManager.GET_SIGNATURES);
               for (Signature signature : info.signatures) {
                    MessageDigest md = MessageDigest.getInstance("SHA");
                    md.update(signature.toByteArray());

                      TextView tvmyName = (TextView)findViewById(R.id.KeyText);
                      tvmyName.setText(Base64.encodeBytes(md.digest()));
                      Log.d("KEY_HASH", Base64.encodeBytes(md.digest()));


               }
            } catch (NameNotFoundException e) {

            } catch (NoSuchAlgorithmException e) {

            }

KeyHash值1：tvmyName.setText（Base64.encodeBytes（md.digest（）））;

KeyHash值2：Log.d（“KEY_HASH”，Base64.encodeBytes（md.digest（）））;

请在facebook控制台中传递keyhash值，如下图所示： enter image description here

Answer 3

首先，避免将Facebook SDK复制到当前工作区，将其保存在某个位置，然后将Facebook SDK的工作集添加到工作区中。

我尝试过一个简单的应用并从用户那里获得一些权限。以下是我试过的代码，在我没有在设备上安装Facebook应用程序的情况下完全正常工作。

public class MainActivity extends Activity implements StatusCallback {

final Context context = this;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Session currentSession = Session.getActiveSession();
    if (currentSession == null || currentSession.getState().isClosed()) {
        Session session = new Session.Builder(context).build();
        Session.setActiveSession(session);
        currentSession = session;
    }

    if (currentSession.isOpened()) {
        // Do whatever u want. User has logged in

    } else if (!currentSession.isOpened()) {
        // Ask for username and password
        OpenRequest op = new Session.OpenRequest((Activity) context);

        op.setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK);
        op.setCallback(null);

        List<String> permissions = new ArrayList<String>();
        permissions.add("user_likes");
        permissions.add("email");
        permissions.add("user_birthday");
        permissions.add("user_location");
        permissions.add("user_interests");
        permissions.add("friends_birthday");
        op.setPermissions(permissions);

        Session session = new Builder(MainActivity.this).build();
        Session.setActiveSession(session);
        session.openForRead(op);
    }
}

public void call(Session session, SessionState state, Exception exception) {
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {

    System.out.println("Here");

    super.onActivityResult(requestCode, resultCode, data);
    if (Session.getActiveSession() != null)
        Session.getActiveSession().onActivityResult(this, requestCode,
                resultCode, data);

    Session currentSession = Session.getActiveSession();
    if (currentSession == null || currentSession.getState().isClosed()) {
        Session session = new Session.Builder(context).build();
        Session.setActiveSession(session);
        currentSession = session;
    }

    if (currentSession.isOpened()) {
        Session.openActiveSession(this, true, new Session.StatusCallback() {

            @SuppressWarnings("deprecation")
            @Override
            public void call(final Session session, SessionState state,
                    Exception exception) {

                if (session.isOpened()) {

                    Request.executeMeRequestAsync(session,
                            new Request.GraphUserCallback() {

                                @Override
                                public void onCompleted(GraphUser user,
                                        Response response) {
                                    if (user != null) {

                                        System.out.println(user.getName());
                                        System.out.println(session
                                                .getAccessToken());
                                        System.out.println(user
                                                .getFirstName());

                                    }
                                }
                            });
                }
            }
        });
    }
}

}

在onActivityResult我尝试打印一些基本信息。如果碰到这个当前代码的任何问题，只需尝试代码并发表评论。

Answer 4

您的SDK /进程/代码有什么问题吗？

试试这个代码＆amp;让我知道它是否正常工作或遇到与你提到的相同的问题。

Click here.

登录后Facebook没有回来但又要求登录

4 个答案: