如何让Font Awesome 5与React一起使用？

Question

在以下示例中,初始图标呈现但在类更改时不会更改.

const Circle = ({ filled, onClick }) => {
  const className = filled ? 'fas fa-circle' : 'far fa-circle';
  
  return (
    <div onClick={onClick} >
      <i className={className} />
      <p>(class is {className})</p>
    </div>
  );
};

class App extends React.Component {
  state = { filled: false };

  handleClick = () => {
    this.setState({ filled: !this.state.filled });
  };
  
  render() {
    return <Circle filled={this.state.filled} onClick={this.handleClick} />;
  }
}

ReactDOM.render(<App />, document.getElementById("root"));

<script src="https://use.fontawesome.com/releases/v5.0.2/js/all.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

<div id="root"></div>

Answer 1

BO41是对的,它是字体真棒的javascript,不会重新渲染.如果你没有使用新的字体 - 真棒svg/javascript图标,你可以使用font-awesome作为带有css的webfont.

在index.html中,删除fontawesome脚本,并添加font-awesome css样式表:

<link href="https://use.fontawesome.com/releases/v5.0.2/css/all.css" rel="stylesheet">

您的代码现在应该可以使用

另一种可能性是使用官方字体 - 真棒反应包(它有点麻烦,但它使用新的svg图标)

向项目添加必要的包:

yarn add @fortawesome/fontawesome @fortawesome/react-fontawesome
yarn add @fortawesome/fontawesome-free-regular @fortawesome/fontawesome-free-solid

更新的代码:

import fontawesome from '@fortawesome/fontawesome'
import FontAwesomeIcon from '@fortawesome/react-fontawesome'
import { faCircle as fasCircle } from '@fortawesome/fontawesome-free-solid'
import { faCircle as farCircle } from '@fortawesome/fontawesome-free-regular'

const Circle = ({ filled, onClick }) => {

  return (
    <div onClick={onClick} >
      <FontAwesomeIcon icon={filled ? farCircle : fasCircle}/>
    </div>
  );
};

class App extends React.Component {
  state = { filled: false };

  handleClick = () => {
    this.setState({ filled: !this.state.filled });
  };

  render() {
    return <Circle filled={this.state.filled} onClick={this.handleClick} />;
  }
}

有关更多信息,请访问github repo:https://github.com/FortAwesome/react-fontawesome