React+TS前台项目实战（二十八）-- 首页响应式构建之剩余模块布局

news2024/9/29 23:32:08

文章目录

前言
BlockList区块
- 1. 完整页面效果展示
- 2. 功能分析
- 3. 代码+详细注释
- 4. 使用方式
TranctionList交易模块
总结

前言

今天，我们继续完善首页剩余模块的响应式布局交互。通过关注点分离的方法，逐步切割模块至最小单元，并结合React的hook钩子函数，实现按需渲染，避免了渲染浪费，提升页面性能，尤其在实时轮询接口时至关重要。
页面带有banner模块、搜索模块、搜索下拉结果列表、切换语言模块、区块模块列表、交易模块列表，并且采用实时查询。

BlockList区块

1. 完整页面效果展示

（1）PC端效果
在这里插入图片描述

（2）移动端效果
在这里插入图片描述

2. 功能分析

（1）模块由四部分组成，Title标题块、List列表块、Item单位循环块、More跳转更多块组成
（2）结合使用react-query库，实现接口定时轮训
（3）使用memo钩子函数，通过条件比较，看是否重新渲染
（4）使用全局封装useParsedDate方法转换时间戳，BigNumber库转换数字
（5）使用HighLightLink公共组件实现跳转，以及复制功能
（6）使用国际化语言

3. 代码+详细注释

（1）最小项Item组件封装

// @/pages/Home/BlockList/Item/index.tsx
/**
 * 该组件用于显示循环体单个区块信息
 * @param block: 区块信息
 * @param isDelayBlock: 是否为延时区块，延时区块显示不同样式
 */
import { FC, memo } from "react";
import { useTranslation } from "react-i18next";
import BigNumber from "bignumber.js";
import { Block } from "@/models/Block";
import { HighLightLink } from "@/components/HighLightLink";
import { shannonToCkb } from "@/utils";
import { useParsedDate } from "@/hooks/index";
import classNames from "classnames";
import { BlockCard, BlockCardLeft, BlockCardRight, BlockCardCenter } from "./styled";
const _BlockCardItem: FC<{ block: Block; isDelayBlock?: boolean }> = ({ block, isDelayBlock }) => {
  const { t } = useTranslation();
  const liveCellChanges = Number(block.liveCellChanges);
  const [int, dec] = new BigNumber(shannonToCkb(block.reward)).toFormat(2, BigNumber.ROUND_FLOOR).split(".");
  const parsedBlockCreateAt = useParsedDate(block.timestamp);

  return (
    <BlockCard>
      {/* 左侧：区块编号和时间 */}
      <BlockCardLeft>
        <div className={classNames("block-card-number")}>
          <span>#</span>
          <HighLightLink value={block.number.toString()} to={`/block/${block.number}`} />
        </div>
        <span className="block-card-time">{parsedBlockCreateAt}</span>
      </BlockCardLeft>
      {/* 中间：矿工和奖励 */}
      <BlockCardCenter>
        <div className={classNames("block-card-miner")}>
          <span className="block-card-miner">{t("home.miner")}</span>
          <div>{block.minerHash}</div>
        </div>
        <div className={classNames("block-card-reward")}>
          <span>{`${t("home.reward")}`}</span>
          <div className={classNames("reward")}>
            <span data-role="int">{int}</span>
            {dec ? <span data-role="dec" className="monospace">{`.${dec}`}</span> : null}
            {isDelayBlock ? <span data-role="suffix">+</span> : null}
          </div>
        </div>
      </BlockCardCenter>
      {/* 右侧：交易数和单元数 */}
      <BlockCardRight>
        <span className={classNames("block-card-trac-count")}>{`4 TXs`}</span>
        <span className={classNames("block-card-cells")}>{`${liveCellChanges >= 0 ? "+" : "-"}6 ${t("home.cells")}`}</span>
      </BlockCardRight>
    </BlockCard>
  );
};
// 使用memo优化，通过两个条件的比较，当前后两条数据不一致时，重新渲染单个循环体
export const BlockCardItem = memo(_BlockCardItem, (a, b) => a.block.number === b.block.number && a.isDelayBlock === b.isDelayBlock);
--------------------------------------------------------------------------------------------------------------
// @/pages/Home/BlockList/Item/styled.tsx
import styled from "styled-components";
export const BlockCard = styled.div`
  display: flex;
  align-items: center;
  padding: 13px;
  background: #fff;
`;
export const BlockCardLeft = styled.div`
  flex: 2.2;
  min-width: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  .block-card-number {
    display: flex;
    align-items: center;
    font-size: 13px;
    span {
      margin-right: 3px;
    }
  }
  .block-card-time {
    color: var(--cd-gray-light-3);
    font-size: 12px;
    margin-top: 10px;
  }
`;
export const BlockCardCenter = styled.div`
  flex: 3.8;
  min-width: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  .block-card-miner {
    display: flex;
    align-items: center;
    font-size: 13px;
    margin-right: 10px;
    span {
      margin-right: 3px;
    }
  }
  .block-card-reward {
    display: flex;
    align-items: center;
    color: var(--cd-gray-light-3);
    margin-top: 10px;
    .reward {
      display: flex;
      align-items: center;
      margin-left: 10px;
      span[data-role="int"] {
        font-size: 14px;
      }

      span[data-role="dec"] {
        font-size: 9px;
        padding-right: 2px;
      }

      span[data-role="suffix"] {
        font-size: 12px;
      }
    }
  }
`;
export const BlockCardRight = styled.div`
  flex: 1.2;
  min-width: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  .block-card-trac-count {
    display: flex;
    align-items: center;
    font-size: 13px;
  }
  .block-card-cells {
    font-size: 12px;
    color: var(--cd-gray-light-3);
    margin-top: 10px;
  }
`;

（2）List模块，引入Item组件循环数据

 const List: FC = () => {
    return blocks.length > 0 ? (
      <>
        {blocks.map((item, index) => (
          <div key={item.number}>
            <BlockCardItem block={item} isDelayBlock={index < DELAY_BLOCK_NUMBER} />
            {blocks.length - 1 !== index && <div className="blockCardSeparate" />}
          </div>
        ))}
      </>
    ) : (
      <Loading />
    );
  };

（3）BlockList父组件

import { FC, memo } from "react";
import { useNavigate } from "react-router-dom";
import { useTranslation } from "react-i18next";
import { BlockCardItem } from "./Item";
import Loading from "@/components/Loading";
import { Block } from "@/models/Block";
import { DELAY_BLOCK_NUMBER } from "@/global/constants/common";
import { BlockListContainer, BlockListTitle } from "./styled";
import { MoreButton } from "@/pages/Home/styled";
const BlockList: FC<{ blocks: Block[] }> = memo(({ blocks }) => {
  const {
    t,
    i18n: { language },
  } = useTranslation();
  const navigate = useNavigate();
  // 区块列表
  const List: FC = () => {
    return blocks.length > 0 ? (
      <>
        {blocks.map((item, index) => (
          <div key={item.number}>
            {/* 单个区块 */}
            <BlockCardItem block={item} isDelayBlock={index < DELAY_BLOCK_NUMBER} />
            {blocks.length - 1 !== index && <div className="blockCardSeparate" />}
          </div>
        ))}
      </>
    ) : (
      <Loading />
    );
  };
  return (
    // 区块列表容器
    <BlockListContainer>
      {/* 区块列表标题 */}
      <BlockListTitle>{t("home.latest_blocks")}</BlockListTitle>
      {/* 区块列表 */}
      <List />
      {/* 查看更多按钮 */}
      <MoreButton
        onClick={() => {
          navigate(`/${language}/block/list`);
        }}
      >
        <span>{t("home.more")}</span>
      </MoreButton>
    </BlockListContainer>
  );
});
export default BlockList;
--------------------------------------------------------------------------------------------------------------
import styled from "styled-components";
export const BlockListContainer = styled.div`
  flex: 1;
  width: 100%;
  min-width: 0;
  margin: 0 20px 40px 0;
  border-radius: 6px;
  overflow: hidden;
  bacnground: #fff;
  box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.1);
`;
export const BlockListTitle = styled.div`
  width: 100%;
  height: 40px;
  line-height: 40px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  padding-left: 12px;
  background: var(--cd-primary-color);
`;

4. 使用方式

// 引入
import BlockList from "./BlockList";
// 数据模拟，下一节对接真实接口，轮训处理
const blocks = [
  {
    miner_hash: "ckb1qzda0cr08m85hc8jlnfp3zer7xulejywt49kt2rr0vthywaa50xwsq0tpsqq08mkay9ewrfrdwlcghv62qw704s93hhsj",
    number: "13418010",
    timestamp: "1720282004389",
    reward: "57350724258",
    transactions_count: "1",
    live_cell_changes: "1",
  },
  // ...
];
// 使用
<BlockList blocks={blocks} />