在React中创建音频进度条可以通过以下步骤实现:
npm install react react-dom
import React, { useState, useEffect } from 'react';
const AudioProgressBar = () => {
const [currentTime, setCurrentTime] = useState(0);
const [duration, setDuration] = useState(0);
useEffect(() => {
const audioElement = document.getElementById('audio');
audioElement.addEventListener('timeupdate', updateTime);
audioElement.addEventListener('loadedmetadata', updateDuration);
return () => {
audioElement.removeEventListener('timeupdate', updateTime);
audioElement.removeEventListener('loadedmetadata', updateDuration);
};
}, []);
const updateTime = () => {
const audioElement = document.getElementById('audio');
setCurrentTime(audioElement.currentTime);
};
const updateDuration = () => {
const audioElement = document.getElementById('audio');
setDuration(audioElement.duration);
};
const formatTime = (time) => {
const minutes = Math.floor(time / 60);
const seconds = Math.floor(time % 60);
return `${minutes}:${seconds < 10 ? '0' : ''}${seconds}`;
};
const handleSeek = (e) => {
const audioElement = document.getElementById('audio');
const seekTime = (e.nativeEvent.offsetX / e.target.offsetWidth) * audioElement.duration;
audioElement.currentTime = seekTime;
};
return (
<div>
<audio id="audio" src="path/to/audio.mp3" controls />
<div className="progress-bar" onClick={handleSeek}>
<div className="progress" style={{ width: `${(currentTime / duration) * 100}%` }} />
</div>
<div className="time">
<span>{formatTime(currentTime)}</span> / <span>{formatTime(duration)}</span>
</div>
</div>
);
};
export default AudioProgressBar;
import React from 'react';
import AudioProgressBar from './AudioProgressBar';
const App = () => {
return (
<div>
<h1>My Audio Player</h1>
<AudioProgressBar />
</div>
);
};
export default App;
这样,你就可以在React应用程序中创建一个简单的音频进度条了。当用户播放音频时,进度条将根据音频的当前时间和总时长进行更新。用户还可以通过点击进度条来跳转到音频的不同位置。
请注意,上述示例中的代码仅用于演示目的,实际应用中可能需要根据具体需求进行修改和优化。
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