Answer 1

您是否在活动代码中添加了对authorizeCallback（）的调用？您需要将其放在活动的onActivityResult方法中。

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
  super.onActivityResult(requestCode, resultCode, data);
  facebook.authorizeCallback(requestCode, resultCode, data);
  // ... anything else your app does onActivityResult ...
}