https://developers.facebook.com/docs/facebook-login

这是代码…也许这可能会有所帮助.

public class LoginHandlerFrag extends Fragment {
 
    private UiLifecycleHelper uiHelper;
    private static final String TAG = "HomeFragment";
    // private ProfilePictureView profilePictureView;
 
    private Session.StatusCallback callback = new Session.StatusCallback() {
        @Override
        public void call(Session session,SessionState state,Exception exception) {
            onSessionStateChange(session,state,exception);
        }
    };
 
    @Override
    public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_login,container,false);
 
        LoginButton authButton = (LoginButton) view
                .findViewById(R.id.authButton);
 
        authButton.setReadPermissions(Arrays.asList("email","user_location","user_birthday","user_likes","user_photos"));
        authButton.setFragment(this);
 
        Settings.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS);
 
        return view;
    }
 
    private void makeMeRequest(final Session session) {
        // Make an API call to get user data and define a
        // new callback to handle the response.
        Request request = Request.newMeRequest(session,new Request.GraphUserCallback() {
                    @Override
                    public void onCompleted(GraphUser user,Response response) {
 
                        // If the response is successful
                        if (session == Session.getActiveSession()) {
                            if (user != null) {
                                // profilePictureView.setProfileId(user.getId());
                            }
                        }
                        if (response.getError() != null) {
                            // Handle errors,will do so later.
                        }
                    }
                });
        request.executeAsync();
    }
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        uiHelper = new UiLifecycleHelper(getActivity(),callback);
        uiHelper.onCreate(savedInstanceState);
    }
 
    private void onSessionStateChange(Session session,Exception exception) {
        session = Session.getActiveSession();
        SharedPreferences storedPrefs = PreferenceManager
                .getDefaultSharedPreferences(getActivity().getApplicationContext());
        SharedPreferences.Editor editor = storedPrefs.edit();
        editor.putBoolean("userLoggedTracker",true);
        editor.commit();
 
        if (state.isOpened()) {
            Log.i(TAG,"Logged in...");
            makeMeRequest(session);
            editor.putBoolean("userLoggedTracker",false);
            editor.commit();
            getView().setVisibility(View.GONE);
 
        } else if (state.isClosed()) {
            Log.i(TAG,"Logged out...");
            editor.putBoolean("userLoggedTracker",true);
            editor.commit();
            getView().setVisibility(View.VISIBLE);
        }
    }
 
    @Override
    public void onResume() {
        super.onResume();
 
        Session session = Session.getActiveSession();
        if (session != null && (session.isOpened() || session.isClosed())) {
            onSessionStateChange(session,session.getState(),null);
        }
        uiHelper.onResume();
    }
 
    @Override
    public void onActivityResult(int requestCode,int resultCode,Intent data) {
        super.onActivityResult(requestCode,resultCode,data);
        uiHelper.onActivityResult(requestCode,data);
    }
 
    @Override
    public void onPause() {
        super.onPause();
        uiHelper.onPause();
    }
 
    @Override
    public void onDestroy() {
        super.onDestroy();
        uiHelper.onDestroy();
    }
 
    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        uiHelper.onSaveInstanceState(outState);
    }
}