我想创建带有很多实时图标的仪表板。实时图标表示图标内容将动态变化。
例如:-假设我有一个咖啡杯图标,根据售出的咖啡数量,杯子中的咖啡水平会上升。
我尝试使用SVG和CSS解决它。下面是实时代码沙箱DEMO
示例。 (我在下面发布了相同的代码)
https://codesandbox.io/s/fill-coffee-to-svg-1sfb0
我到底在做什么,是在SVG组件之上,我使用div节点并在div标签上应用了CSS。
问题是,在SVG中动态管理路径/点非常困难,对于不同的屏幕版本也将很困难。
任何人都可以为此建议任何更好的方法。
import ReactDOM from "react-dom";
import React, { Component } from "react";
class Todo extends Component {
state = { height: 4 };
setHeight = (e, fillType) => {
e.preventDefault();
console.log(this.state.height);
if (this.state.height < 100) {
if (fillType === "fill") {
this.setState({
height: this.state.height + 2
});
}
}
if (this.state.height >= 2) {
if (fillType === "drink") {
this.setState({
height: this.state.height - 2
});
}
}
};
render() {
return (
<div>
<svg width="255" height="224" xmlns="http://www.w3.org/2000/svg">
<g>
<rect
fill="#fff"
id="canvas_background"
height="226"
width="257"
y="-1"
x="-1"
/>
<g
display="none"
overflow="visible"
y="0"
x="0"
height="100%"
width="100%"
id="canvasGrid"
>
<rect
fill="url(#gridpattern)"
stroke-width="0"
y="0"
x="0"
height="100%"
width="100%"
/>
</g>
</g>
<g>
<title>Layer 1</title>
<path
stroke="#000"
id="svg_1"
d="m78.82963,176.75921l97.93778,0c14.11708,-0.03733 23.74788,-17.00704 23.70086,-34.46505l0,-11.73873c27.94999,-0.03136 48.22814,-30.02253 48.21769,-64.99381c0.01045,-35.59398 -19.86965,-64.83701 -43.00946,-64.81162l-150.95938,0l0,141.54714c0.02194,19.22158 11.60543,34.42772 24.1125,34.46207zm121.63551,-149.38391l0,0l5.20823,0c19.14875,-0.04331 25.29102,25.83983 25.19908,38.38045c0.01881,20.24897 -10.47393,39.66916 -30.40731,37.78463l0,-76.16508zm-199.71514,158.00316c0.01776,26.16387 13.9729,38.29683 25.20535,38.37149l202.59351,0c13.39827,-0.07466 25.14161,-15.13147 25.20117,-38.37149l-253.00002,0z"
stroke-width="1.5"
fill="#fff"
/>
</g>
</svg>
<div
style={{
position: "absolute",
left: "63px",
top: "9px",
height: "175px",
width: "145px",
borderBottomLeftRadius: "25px",
borderBottomRightRadius: "25px",
overflow: "auto"
}}
>
<div
style={{
height: this.state.height + "%",
width: "100%",
position: "absolute",
bottom: "0",
zIndex: 1000,
background: "green",
transition: "all .4s"
}}
/>
</div>
<button onClick={e => this.setHeight(e, "fill")}>
fill more cofee +
</button>
<button onClick={e => this.setHeight(e, "drink")}>drink cofee -</button>
</div>
);
}
}
ReactDOM.render(<Todo />, document.getElementById("root"));
最佳答案
您是否尝试过使用react-spring库?
在react-spring文档的基础部分(可在此处找到-https://www.react-spring.io/docs/hooks/basics)中给出以下代码片段:
const props = useSpring({ x: 100, from: { x: 0 } })
return (
<animated.svg strokeDashoffset={props.x}>
<path d="..." />
</animated.svg>
)
以您的咖啡杯为例,如果将咖啡杯与填充咖啡杯的咖啡分开放置,并且咖啡行程向上,则可以使用此技术为咖啡高度设置动画。
编辑:
在使用类组件时,您将为此使用渲染道具API-https://www.react-spring.io/docs/props/spring
<Spring
from={{ x: 100 }}
to={{ x: 0 }}>
{props => (
<svg strokeDashoffset={props.x}>
<path d="..." />
</svg>
)}
</Spring>