是的，可以在片段中实现Facebook登录，您唯一需要做的就是像这样在主机活动中调用OnActivityResult:

Yes it's Posssible to implement facebook login in fragment, the only thing you need to do is call OnActivityResult in your host activity like this:

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Fragment fragment = getFragmentManager().findFragmentById(R.id.your_host_fragment_in_activity);
        fragment.onActivityResult(requestCode, resultCode, data);
    }

，然后在您的片段中再次调用onActivityResult.

and then call onActivityResult again in yout fragment.