如何获取音频元素?

IT技术 reactjs html5-audio
2021-05-14 00:36:16

使用 React,我希望获得音频元素。

var AudioPlayer = React.createClass({
    componentDidMount: function () {
        console.info('Audio: component did mount');
        var audio = React.findDOMNode('audio');
        console.info('audio', audio);
    },
    render : function() {
        return (
            <audio src="/static/music/foo.mp3" controls />
        );
    }
});

但我不断收到错误消息:

错误:不变违规:元素似乎既不是 ReactComponent 也不是 DOMNode(键:0、1、2、3、4)

确定降低的组件是 React 类吗?

1个回答

它使用组件引用工作:

var AudioPlayer = React.createClass({
    componentDidMount: function () {
        console.info('[AudioPlayer] componentDidMount...');
        this.props.el = React.findDOMNode(this.refs.audio_tag);
        console.info('audio prop set', this.props.el);
    },
    render: function() {
        console.info('[AudioPlayer] render...');
        return (
            <audio ref="audio_tag" src="/static/music/foo.mp3" controls autoplay="true"/>
        );
    }
});