如何在第二次用Facebook注册后第二次打开我的Android应用程序时获取更新的用户数据？

Question

我尝试使用accessToken从Graph API获取更新数据，但它始终显示Logout按钮屏幕。

accessTokenTracker = new AccessTokenTracker() {
            @Override
            protected void onCurrentAccessTokenChanged(AccessToken oldAccessToken, AccessToken newAccessToken) {
                accessToken = newAccessToken;
            }
        };

@Override
protected void onDestroy() {
    super.onDestroy();
    if(isFromFb){
        accessTokenTracker.stopTracking();
    }
}
if(accessToken != null) {

            GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
                @Override
                public void onCompleted(JSONObject object, GraphResponse response) {
                    Log.d("TestLog user : " , object.toString());
                }
            });
            Bundle parameters = new Bundle();
            parameters.putString("fields", "id,name,email,gender, birthday,picture.type(large),friends");
            request.setParameters(parameters);
            request.executeAsync();
        }

如何在Facebook SDK 4.0中第二次获取最新的个人资料数据

Answer 1

尝试此操作您可以在每次获取用户详细信息后以编程方式注销用户，例如LoginManager.getInstance().logOut();

有关详情，请参阅此处： - http://coderzpassion.com/android-using-facebook-login-application-using-latest-facebook-sdk/

Answer 2

抱歉，我在最后得到了一个小错误，我得到了答案。我需要先获取当前的accessToken。但是早些时候我才采取onCurrentAccessTokenChanged方法。

accessToken = AccessToken.getCurrentAccessToken();
accessTokenTracker = new AccessTokenTracker() {
        @Override
        protected void onCurrentAccessTokenChanged(AccessToken oldAccessToken, AccessToken newAccessToken) {
            accessToken = newAccessToken;
        }
    };

@Override
protected void onDestroy() {
    super.onDestroy();
    if(isFromFb){
        accessTokenTracker.stopTracking();
    }
}

if(accessToken != null) {

            GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
                @Override
                public void onCompleted(JSONObject object, GraphResponse response) {
                    Log.d("TestLog user : " , object.toString());
                }
            });
            Bundle parameters = new Bundle();
            parameters.putString("fields", "id,name,email,gender, birthday,picture.type(large),friends");
            request.setParameters(parameters);
            request.executeAsync();
        }