如何通过semantic-ui-react实现react分页

Question

我正在pagination通过 实现功能semantic-ui-react。
我可以实现分页组件本身，但无法实现onPageChange设置activePage和控制显示的页面数。

我使用 React 来实现客户端功能。
我还使用semantic-ui-react作为css框架。

数组的所有内容现在都列在单个页面上。
但我想实现分页并限制在单页上显示5个内容。
我以某种方式理解我需要使用onPageChange，但不知道如何实现该目标。

import React from 'react';
import {Link} from 'react-router-dom';
import {Grid, Segment, Container, Header, Pagination} from 'semantic-ui-react';
import axios from 'axios';
import {Article} from '../articleData';

interface ArticleState {
  articles: Article[];
}

class List extends React.Component<{}, ArticleState> {
  constructor(props: {}) {
    super(props);
    this.state = {
      articles: [],
    };
    this.serverRequest = this.serverRequest.bind(this);
    this.btnClick = this.btnClick.bind(this);
  }

  serverRequest() {
    axios
      .get('/api/articles')
      .then(response => {
        this.setState({articles: response.data});
      })
      .catch(response => console.log('ERROR!! occurred in Backend.'));
  }

  btnClick(event: React.MouseEvent<HTMLAnchorElement>, data: object) {
  }

  componentDidMount() {
    this.setState({articles: []});
    this.serverRequest();
  }

  render() {
    return (
      <Container style={{marginTop: '7em'}} text>
        <Grid columns={1} divided="vertically">
          <Grid.Row>
            {(this.state.articles || []).map(function(articleData, i) {
              return (
                <Grid.Column>
                  <Segment>
                    <Header as="h1">{articleData.title}</Header>
                    <p>{articleData.content}</p>
                    <Link to={`/detail/${articleData.id}`}>
                      continue reading
                    </Link>
                  </Segment>
                </Grid.Column>
              );
            })}
          </Grid.Row>
        </Grid>
        <Pagination
          defaultActivePage={5}
          totalPages={Math.floor(this.state.articles.length / 2) + 1}
        //onPageChange={this.btnClick}
        />
      </Container>
    );
  }
}

export default List;

我希望分页功能能够将单页上显示的内容数量限制为 5 个。
但实际上我不知道如何实现这个功能。

Answer 1

我解决了这个问题。
这是代码：

import React from 'react';
import {Link} from 'react-router-dom';
import {
  Grid,
  Segment,
  Container,
  Header,
  Pagination,
  PaginationProps,
  Icon,
} from 'semantic-ui-react';
import axios from 'axios';
import {Article} from '../articleData';

interface ArticleState {
  articles: Article[];
  articleDatas: Article[];
  begin: number;
  end: number;
  activePage: number;
}

class List extends React.Component<{}, ArticleState> {
  constructor(props: {}) {
    super(props);
    this.state = {
      articles: [],
      articleDatas: [],
      begin: 0,
      end: 5,
      activePage: 1,
    };
    this.serverRequest = this.serverRequest.bind(this);
    this.btnClick = this.btnClick.bind(this);
  }

  async serverRequest() {
    const res = await axios.get('/api/articles');
    this.setState({articles: res.data});
  }

  async btnClick(
    event: React.MouseEvent<HTMLAnchorElement>,
    data: PaginationProps
  ) {
    await this.setState({activePage: data.activePage as number});
    await this.setState({begin: this.state.activePage * 5 - 5});
    await this.setState({end: this.state.activePage * 5});
    this.setState({
      articleDatas: this.state.articles.slice(this.state.begin, this.state.end),
    });
  }

  async componentDidMount() {
    this.setState({articles: []});
    await this.serverRequest();
    this.setState({
      articleDatas: this.state.articles.slice(this.state.begin, this.state.end),
    });
  }

  render() {
    return (
      <Container style={{marginTop: '3em'}} text>
        <Grid columns={1} divided="vertically">
          <Grid.Row>
            {(this.state.articleDatas || []).map(function(articleData, i) {
              return (
                <Grid.Column>
                  <Segment>
                    <Header as="h1">{articleData.title}</Header>
                    <p>{articleData.content}</p>
                    <Link to={`/detail/${articleData.id}`}>
                      continue reading
                    </Link>
                  </Segment>
                </Grid.Column>
              );
            })}
          </Grid.Row>
        </Grid>
        <Pagination
          defaultActivePage={1}
          totalPages={Math.ceil(this.state.articles.length / 5)}
          onPageChange={this.btnClick}
        />
      </Container>
    );
  }
}

export default List;