Facebook原生登录使用android中的简单java类

我正在创建一个只包含java类的简单库项目。应该没有活动参与其中我按照facebook开发者页面中的教程https://developers.facebook.com/docs/android/

基于此我试图在我的java类上实现它，如

Session.openActiveSession(a,true,new Session.StatusCallback() { @Override public void call(final Session session, final SessionState state, final Exception exception) {Log.e("Session",session.getAccessToken()); Log.e("Session Status",session.toString()); if(session.isOpened()) { Toast.makeText(c,session.getAccessToken(),Toast.LENGTH_LONG).show(); Log.e("Access Token",session.getAccessToken()); } else { Log.e("Session","Not Opened"); } } }); 

现在，当我使用记录器检查会话值时，结果是

  session {state:OPENING,access_token=ACCESS_TOKEN_REMOVED} 

我的要求是：

1. 具有本机登录支持的简单库仅使用简单的Java类无活动
2. 流程就像用户已经登录Facebook本机应用程序一样，然后我的库将从会话中检索访问令牌，否则我的web视图将继续使用facebok
3. 我只需要facebook访问令牌

Answer 1

我以这种方式实现它。 可能这对你有所帮助。

 //starting facebook session public void facebookstart() { // TODO Auto-generated method stub Session.openActiveSession(this, true, new Session.StatusCallback() { // callback when session changes state @SuppressWarnings("deprecation") @Override public void call(Session session, SessionState state, Exception exception) { if (session.isOpened()) { Log.e("", "session details" + session); acesstoken=session.getAccessToken(); // make request to the /me API Request.executeMeRequestAsync(session, new Request.GraphUserCallback() { // callback after Graph API response with user // object @Override public void onCompleted(GraphUser user, Response response) { if (user != null) { pv = (ProfilePictureView) findViewById(R.id.profilePictureView1); pv.setProfileId(user.getId()); welcome = (TextView) findViewById(R.id.name); welcome.setText("Hi " + user.getName()+"\n"+""+user.getBirthday() + "!"); logout.setText("log out"); image(); } } }); } } }); } 

Answer 2

 Try My function It will do wat you want buddy // Function to signin with Facebook private void signInWithFacebook() { viewProgressVisible("Loading..."); SessionTracker mSessionTracker = new SessionTracker(getBaseContext(), new StatusCallback() { public void call(Session session, SessionState state, Exception exception) { } }, null, false); String applicationId = Utility .getMetadataApplicationId(getBaseContext()); mCurrentSession = mSessionTracker.getSession(); if (mCurrentSession == null || mCurrentSession.getState().isClosed()) { mSessionTracker.setSession(null); Session session = new Session.Builder(getBaseContext()) .setApplicationId(applicationId).build(); Session.setActiveSession(session); mCurrentSession = session; if (authDialog != null) viewProgressGone(); } Log.d("session in login", mCurrentSession + ""); if (!mCurrentSession.isOpened()) { Session.OpenRequest openRequest = null; openRequest = new Session.OpenRequest(MainActivity.this); if (openRequest != null) { if (authDialog != null) viewProgressGone(); openRequest.setDefaultAudience(SessionDefaultAudience.FRIENDS); openRequest.setPermissions(Arrays.asList("email")); openRequest .setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK); mCurrentSession.openForRead(openRequest); } } else { Request.executeMeRequestAsync(mCurrentSession, new Request.GraphUserCallback() { @Override public void onCompleted(GraphUser user, Response response) { Log.e("myConsultant", user.getId() + " " + user.getName() + " " + user.getInnerJSONObject() + "" + user.asMap().get("email")); if (authDialog != null) viewProgressGone(); } }); } } public void viewProgressGone() { authDialog.dismiss(); } public void viewProgressVisible(String paramString) { authDialog = ProgressDialog.show(this, "", paramString, true, false); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data); Log.v("the session created", "" + Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data)); signInWithFacebook(); } 

将此添加到清单中..

Answer 3

试试这个完整的解决方案

1）创建活动

 import java.util.ArrayList; import java.util.List; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.widget.LinearLayout; import android.widget.TextView; import com.facebook.Session; import com.facebook.Session.OpenRequest; import com.facebook.SessionLoginBehavior; import com.facebook.SessionState; import com.facebook.UiLifecycleHelper; public class FacebookLoginActivity extends FragmentActivity { private LinearLayout lnrPbr; private TextView txtPbr; private FacebookLoginMainFragment mainFragment; private UiLifecycleHelper uiHelper; /** * Overrides method */ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (savedInstanceState == null) { // Add the fragment on initial activity setup mainFragment = new FacebookLoginMainFragment(); getSupportFragmentManager().beginTransaction().add(android.R.id.content, mainFragment).commit(); } else { // Or set the fragment from restored state info mainFragment = (FacebookLoginMainFragment) getSupportFragmentManager().findFragmentById(android.R.id.content); } uiHelper = new UiLifecycleHelper(this, callback); uiHelper.onCreate(savedInstanceState); } @Override public void onResume() { super.onResume(); lnrPbr = (LinearLayout) findViewById(R.id.lnrPbr); txtPbr = (TextView) findViewById(R.id.txtPbr); txtPbr.setText(""); Session session = Session.getActiveSession(); if (session != null && (session.isOpened() || session.isClosed())) { onSessionStateChange(session, session.getState(), null); } else { if (session == null) { session = new Session(this); Session.setActiveSession(session); } OpenRequest openRequest = new OpenRequest(this); List readPermissions = new ArrayList(); readPermissions.add("email"); openRequest.setPermissions(readPermissions); openRequest.setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK); openRequest.setCallback(callback); session.openForRead(openRequest); } uiHelper.onResume(); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data); if (resultCode == RESULT_CANCELED) { finish(); } else { uiHelper.onActivityResult(requestCode, resultCode, data); } } @Override public void onPause() { super.onPause(); uiHelper.onPause(); } @Override public void onDestroy() { super.onDestroy(); uiHelper.onDestroy(); try { Session.getActiveSession().closeAndClearTokenInformation(); Session.setActiveSession(null); } catch (Throwable e) { e.printStackTrace(); } } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); uiHelper.onSaveInstanceState(outState); } /** * Class method */ /** * This method used to after session state change listner. * * @param session * represent {@link Session} * @param state * represent {@link SessionState} * @param exception * represent exception */ private void onSessionStateChange(Session session, SessionState state, Exception exception) { if (state.isOpened()) { // Your session is opend here session.getAccessToken(); } else if (state.isClosed()) { OpenRequest openRequest = new OpenRequest(this); List readPermissions = new ArrayList(); readPermissions.add("email"); openRequest.setPermissions(readPermissions); openRequest.setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK); openRequest.setCallback(callback); session.openForRead(openRequest); } } /** * This method used to get session status callback change listner. */ private Session.StatusCallback callback = new Session.StatusCallback() { @Override public void call(Session session, SessionState state, Exception exception) { onSessionStateChange(session, state, exception); } }; } 

2）创建片段

 import java.util.Arrays; import java.util.List; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import com.facebook.widget.LoginButton; public class FacebookLoginMainFragment extends Fragment { private static final List PERMISSIONS = Arrays.asList("email"); /** * Override method */ @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.facebook_main, container, false); LoginButton authButton = (LoginButton) view.findViewById(R.id.authButton); authButton.setFragment(this); authButton.setReadPermissions(PERMISSIONS); authButton.setApplicationId("123124234234-YourAppID"); return view; } } 

3）片段的布局文件需要