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antv-f2的react-native实现(由于GCanvas的不稳定。该项目仅供学习,不建议用于生产)

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react-native-f2

antv-f2的react-native实现

使用此插件,请先安装GCanvas 该插件的Android版有很多坑,可以看下示例

Demo 效果图

文档:

文档请看官方的docs

使用示例:

安装:

一、

yarn add react-native-f2
yarn add -D babel-preset-env babel-plugin-transform-remove-strict-mode
或
npm i -S react-native-f2
npm i -D babel-preset-env babel-plugin-transform-remove-strict-mode

二、添加如下代码到.babelrc

{
  ...
  "plugins": [
    "transform-remove-strict-mode",
    ...
  ]
}

实例:

import React, { Component } from 'react';
import { Dimensions } from 'react-native';
import F2Canvas from 'react-native-f2';
import F2 from '@antv/f2';

const width = Dimensions.get("window").width;
const height = width - 100;

class Demo extends Component {
  componentDidMount() {
    // 延迟渲染(这里是由于GCanvas加载有延迟导致,如果不是界面渲染完立即加载,可不用延迟)
    setTimeout(() => {
        this.draw();
    }, 20);
  }

  draw = () => {
    const data = [
      { year: '1951', sales: 38 },
      { year: '1952', sales: 52 },
      { year: '1956', sales: 61 },
      { year: '1957', sales: 145 },
      { year: '1958', sales: 48 },
      { year: '1959', sales: 38 },
      { year: '1960', sales: 38 },
      { year: '1962', sales: 38 },
    ];
    // 宽高必须指定(这里是指定F2的)
    const chart = new F2.Chart({
      el: this.$canvas.canvas,
      width,
      height,
    });
    chart.source(data);
    chart.interval().position('year*sales');
    chart.render();
  }

  render() {
    // 这里宽高同上,必须指定且值必须相同(这里指定GCanvas的)
    <F2Canvas ref={e => this.$canvas = e} style={{ width, height }} />
  }
}

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antv-f2的react-native实现(由于GCanvas的不稳定。该项目仅供学习,不建议用于生产)

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