aling/dist/lib/hooks/useInfiniteScroll.js

奇怪的组件库

var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
import { useRef, useState } from "react";
/**
 * 无限滚动hook,配合ant-mobile/infinite-scroll使用
 * @param request 一个异步函数，接收两个参数：pageNo,pageSize;函数内同步请求数据接口，返回值须包含total和data, eg: { data:[],total:100 }
 * @param options initPage,initPageSize
 * @returns { list, hasMore, loadMore, reset } list为加载的列表数组;hasmore为是否还有更多数据;loadMore为加载更多函数;reset为重置函数
 */
const useInfiniteScroll = (request, options) => {
    const { initPage = 1, initPageSize = 10 } = options || {};
    const [hasMore, setHasMore] = useState(true);
    const [list, setList] = useState([]);
    const pager = useRef({
        pageNo: initPage,
        pageSize: initPageSize,
    });
    const loadMore = () => __awaiter(void 0, void 0, void 0, function* () {
        const { data = [], total = 0 } = yield request(pager.current.pageNo, pager.current.pageSize);
        pager.current.pageNo = pager.current.pageNo + 1;
        setHasMore(total > list.length + (data === null || data === void 0 ? void 0 : data.length));
        if (data === null || data === void 0 ? void 0 : data.length) {
            setList((prev) => prev.concat(data));
        }
    });
    const reset = () => {
        setList([]);
        setHasMore(true);
        pager.current.pageNo = 1;
    };
    return { list, hasMore, loadMore, reset };
};
export default useInfiniteScroll;