老师，同学，下面这个方法的格式不明白，哪位可帮助解答下🍺
BiliRouteDelegate() : navigatorKey = GlobalKey() 这一段是构造方法么，做初始化变量用的？

BiliRouteDelegate() : navigatorKey = GlobalKey() {
这里面怎么又可以加一些初始化内容？有点蒙圈
}

///相关代码
BiliRouteDelegate() : navigatorKey = GlobalKey() {
//实现路由跳转逻辑
HiNavigator.getInstance().registerRouteJump(
RouteJumpListener(onJumpTo: (RouteStatus routeStatus, {Map? args}) {
_routeStatus = routeStatus;
if (routeStatus == RouteStatus.detail) {
this.videoModel = args![‘videoMo’];
}
notifyListeners();
}));
//设置网络错误拦截器
HiNet.getInstance().setErrorInterceptor((error) {
if (error is NeedLogin) {
//清空失效的登录令牌
HiCache.getInstance().remove(LoginDao.BOARDING_PASS);
//拉起登录
HiNavigator.getInstance().onJumpTo(RouteStatus.login);
}
});
}