路径应用程序更改时如何停止滚动事件?

我正在创建一个带有无限卷轴的简单照片库。问题是,当我单击链接并更改路径时,活动仍然存在,这会给我带来错误。

应用程序:

componentDidMount() {
  this.scrollListener = window.addEventListener("scroll", this.handleScroll);
}

handleScroll = () => {
  const { scrolling, totalPages, page } = this.state;
  if (scrolling || totalPages <= page) {
    return;
  }
  const lastPhoto = document.querySelector("section > div:last-child");
  const lastPhotoOffset = lastPhoto.offsetTop + lastPhoto.clientHeight;
  const pageOffset = window.pageYOffset + window.innerHeight;
  const bottomOffset = 20;
  if (pageOffset > lastPhotoOffset - bottomOffset) {
    this.loadMorePhotos();
  }

如果事件至少发生过一次,我转到/photo/photo:id路径,我会得到一个错误:

TypeError: Cannot read property 'offsetTop' of null
const lastPhotoOffset = lastPhoto.offsetTop + lastPhoto.clientHeight;

我试过:

componentWillUnmount() {
  this.handleScroll = null;
}

或:

componentWillUnmount() {
  this.scrollListener = null;
}

但不起作用。