Question

我已使用Sessions在我的Android应用中集成了Facebook。我有一个登录活动，其中有一个Facebook登录按钮。我想在成功登录Facebook成功登录后转到另一个名为MainActivity的活动，应用程序关闭时没有任何错误或没有进入MainActivity。任何人都可以建议我在哪里提供代码来启动活动。这是我的代码。

 ImageButton buttonLoginLogout,bb;
Session.StatusCallback statusCallback = new SessionStatusCallback();
  @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);

        buttonLoginLogout = (ImageButton)findViewById(R.id.imageButton1);
        buttonLoginLogout.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                onClickLogin();

            }
        });


        Settings.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS);

        Session session = Session.getActiveSession();

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

        updateView();
    }

    @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(this, requestCode, resultCode, data);
    }

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

    private void updateView() {
        Session session = Session.getActiveSession();


            }
        });


          Intent ik=new Intent(Login.this,MainActivity.class);
            startActivity(ik);

        } }


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



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

             updateView();


        }
    }

  }

Answer 1

这样做。

protected void onPostExecute(Bitmap bm){
                        //Drawable drawable = new BitmapDrawable(getResources(), bm);
                        Bitmap b1=bm;
                        ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
                        b1.compress(Bitmap.CompressFormat.JPEG, 100, baos);
                        byte[] b = baos.toByteArray();  
                        // Log.w("bit",""+drawable);
                         String encodedImage = Base64.encodeToString(b,Base64.DEFAULT);

                         Editor edit=pref.edit();
                         edit.putString("image_data",encodedImage);
                         edit.commit();

                          Intent ik=new Intent(Login.this,MainActivity.class);
                          startActivity(ik);

                    }
                 };
                 t.execute();

移动你的

 Intent ik=new Intent(Login.this,MainActivity.class);
                              startActivity(ik);

这个代码在postexecute方法中。

在android中成功登录Facebook后如何进入另一项活动？

1 个答案: