本来写这个特效 我打算用css实现的,结果是一波三折,我太难了,最终没能用css实现,转战了canvas来实现。来吧先看效果图
当然这个图的波浪高度、频率、位置、速度都是可调的,请根据自己的需求调整,如果你讲波浪什么的调大一下 还有有摆动的效果哦。
以下是完整代码
import React, { useEffect, useRef } from 'react';
import classNames from 'classnames';
const WaveAnimation = () => {const canvasRef = useRef<HTMLCanvasElement | null>(null);useEffect(() => {const canvas = canvasRef.current;if (canvas) {const ctx = canvas.getContext('2d');console.log('ctx', ctx);if (ctx) {const amplitude = 60;const frequency = 0.006;let phase = 0;const centerY = canvas.height / 2;const startX = -10;const speed = 0.2;const lineColor = 'rgba(255, 255, 255, 0.1)';const animate = () => {ctx.clearRect(0, 0, canvas.width, canvas.height);ctx.beginPath();ctx.moveTo(startX, centerY);for (let x = startX; x < canvas.width; x++) {const y = centerY + amplitude * Math.sin(frequency * x + phase);ctx.lineTo(x, y);}ctx.strokeStyle = lineColor;ctx.lineWidth = 10;ctx.stroke();phase -= speed;requestAnimationFrame(animate);};animate();}}}, []);return (<div className="wave-animation"><canvas ref={canvasRef} width="3000" height="300"></canvas></div>);
};export default WaveAnimation;
如果你想看vue的写法,请移步这里