autojs移除activity.getEventEmitter监听事件

"ui";
ui.layout(
  <vertical>
    <button id="btn"></button>
  </vertical>
);
ui.btn.click(function () {
  var intent = new Intent();
  intent.setAction("android.settings.action.MANAGE_OVERLAY_PERMISSION");
  activity.startActivityForResult(intent, 8000);
});
let callback = function (requestCode, resultCode, intentData) {
  log("111111111111");
};
activity.getEventEmitter().on("activity_result", callback);
log(activity.getEventEmitter().eventNames());
log(activity.getEventEmitter().listenerCount("activity_result"));
log(activity.getEventEmitter().removeListener("activity_result", callback));
log(activity.getEventEmitter().eventNames());
log(activity.getEventEmitter().listenerCount("activity_result"));