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我有一个按钮点击登录Facebook,但有时这个代码无法工作.抛出异常:造成:
com.facebook.FacebookException: CAnnot pass a publish or manage permission (email) to a request for read authorization

这是我的活动代码

public class FacebookLoginActivity extends Activity {

    private final static String TAG="FB";

    private static final List<String> PERMISSIONS=Arrays.asList("email","user_likes","user_status");

    private Session.StatusCallBACk statusCallBACk=new SessionStatusCallBACk();

    private GraphUser user = null;

    private Bundle bundle;

    privatE intent myIntent;

    private Session session;

    private static FacebookLoginActivity instance=new FacebookLoginActivity();
    @Override
    public void onCreate(Bundle savedInstanceStatE) {
        super.onCreate(savedInstanceStatE);
        if(bundle==null){
            bundle=new Bundle();
        }
        Log.v(tag,"in FB onCreate method");
        myIntent = this.geTintent();
        requestWindowFeature(Window.FEATURE_NO_titlE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
        String action = ClientUtil.getElementValue("action");

        SetTings.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS);
        session=openActiveSession(this,true,PERMISSIONS);
        onClickLogin();
    }



    public void onClickLogin() {
        Log.v(tag,"click login btn");
        session = Session.getActiveSession();
        if (!session.isOpened() && !session.isClosed()) {
            Openrequest openrequest=new Session.openrequest(this);
            openrequest.setPermissions(PERMISSIONS);
            openrequest.setCallBACk(statusCallBACk);
            openrequest.setDefaultAudience(SessionDefaultAudience.FRIENDS);
            openrequest.setLoginBehavior(SessionLoginBehavior.SSO_WITH_falLBACK);
            session.openForPublish(openrequest);
        } else {
            Log.v(tag,"open active session");
            Session.openActiveSession(this,statusCallBACk);
        }
    }

    @Override
    public void onStart() {
        super.onStart();
        Log.v(tag,"onStart method to add  fb CallBACk");
        Session.getActiveSession().addCallBACk(statusCallBACk);
    }

    @Override
    public void onStop() {
        super.onStop();
        Log.v(tag,"onStop method to remove fb callBACk");
        Session.getActiveSession().removeCallBACk(statusCallBACk);
    }

    @Override
    public void onActivityResult(int requestCode,int resultCode,Intent data) {
        super.onActivityResult(requestCode,resultCode,data);
        Log.v(tag,"onActivityResult method to call Fb Session");
        Session.getActiveSession().onActivityResult(this,requestCode,data);
    }

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

    private static Session openActiveSession(Activity activity,Boolean allowLoginUI,List<String> permissions) {
        Openrequest openrequest = new openrequest(activity).setPermissions(permissions);
        Session session = new Session.builder(activity).build();
        if (SessionState.CREATED_TOKEN_LOADED.equals(session.getState()) || allowLoginUI) {
            Session.setActiveSession(session);
            session.openForPublish(openrequest);
            return session;
        }
        return null;
    }

    private class SessionStatusCallBACk implements Session.StatusCallBACk {

        @Override
        public void call(Session session,SessionState state,Exception exception) {
            Log.v(tag,"in StatusCallBACk call method exception is:"+ exception);
            Log.v(tag,"session state is:"+session.isOpened());
            if(user != null) {
                Log.v(tag,"fb user is exist todo login yyy");
                login();
                finish();
                Log.v(tag,"finish fb activity");
                return;
            }
            if(session.isOpened()) {
                Log.v(tag,"session is opened to call FB request");
                request.executeMerequestAsync(session,new request.GraphUserCallBACk() {

                    @Override
                    public void onCompleted(GraphUser me,Response responsE) {
                        Log.v(tag,"in GraphUserCallBACk onCompleted method");
                        Log.v(tag,"GraphUser has value:"+(user!=null));
                        if(me != null) {
                            user=me;
                            login();
                        }
                        finish();
                        Log.v(tag,"finish fb activity");
                    }
                });
            }else{
                Log.v(tag,"session is not open");
                if(exception !=null && exception.toString().contains("Canceled")){
                    Log.v(tag,"cancle login");
                    bundle.puTint("code",RespondCode.CANCLE);
                    myIntent.putExtras(bundlE);
                    setResult(Activity.RESULT_OK,myIntent);
                    finish();
                }
            }
        }
    }       
}

解决方法

您不能调用openForPublish,除非您的应用程序已经被首先授予了基本权限.

将您的PERMISSIONS列表分成PERMISSIONS_READ和PERMISSIONS_PUBLISH,并将“电子邮件”放入PUBLISH方面.然后调用openForRead,然后在会话打开时requestNewPublishPermissions.

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