监听 visibilitychange；我这边是同时监听pageshow 和 visibilitychange，对最终执行的事件做了一个throttle处理。

看下来，是因为小程序的webview 不会触发pageshow事件。

const pageCacheBackHandler = useCallback(() => {
    throttle(doSomething());
  }, [doSomething]);

const pageShowEventHandler = useCallback(
    (event) => {
      if (event && event.persisted) {
        pageCacheBackHandler();
      }
    },
    [pageCacheBackHanlder]
);

const visibilityStateChangeEventHandler = useCallback(() => {
    if (document.visibilityState == "visible") {
      pageCacheBackHandler();
    }
  }, [pageCacheBackHandler]); 

 useEffect(() => {
    window.addEventListener("pageshow", pageShowEventHandler);
    document.addEventListener(
      "visibilitychange",
      visibilityStateChangeEventHandler
    );

    return () => {
      window.removeEventListener("pageshow", pageShowEventHandler);
      document.removeEventListener(
        "visibilitychange",
        visibilityStateChangeEventHandler
      );
    };
  }, [
    pageShowEventHandler,
    visibilityStateChangeEventHandler,
  ]);

能解决了吗

顶一下 比较着急