HarmonyOS 鸿蒙Next Refresh组件中加入webview，无法触发refresh操作

web嵌套在refresh里下拉不支持刷新，可以使用PullToRefresh来实现下拉刷新、上拉加载 参考地址：https://gitee.com/openharmony-sig/PullToRefresh

import web_webview from '@ohos.web.webview'
import { PullToRefresh } from '@ohos/pulltorefresh'

@Entry
@Component
struct refreshWeb {
  @State dataArray: Array<string> = []
  @Builder
  getContentView() {
    Column() {
      Web({ src: $rawfile("index.html"), controller: this.controller })
    }
    .width('100%')
    .height('50%')
  }

  build() {
    Scroll(this.scroller) {
      PullToRefresh({
        // 必传项，列表组件所绑定的数据,不是列表传个空数据
        data: $dataArray,
        // 必传项，需绑定传入主体布局
        scroller: this.scroller,
        // 必传项，自定义主体布局
        customList: () => {
          // 一个用@Builder修饰过的UI方法,web组件定义在此@Builder
          this.getContentView();
        },
        // 可选项，下拉刷新回调
        onRefresh: () => {
          this.isRefreshing = true;
          return new Promise<(resolve, reject) => {
            setTimeout(() => {
              resolve('刷新成功');
              this.isRefreshing = false
              // this.controller.loadUrl($rawfile("indexA.html"))
            }, 2000);
          });
        },
      })
    }
    .width('100%')
    .height('100%')
  }
}