I have this code:
import React, {useState} from 'react';
import PropTypes from 'prop-types';
import styled from "styled-components";
import ArrowTemplate from "./ArrowTemplate";
const AccordionBtn = styled.button`
background-color: #eee;
color: #444;
cursor: pointer;
padding: 18px;
display: flex;
align-items: center;
border: none;
outline: none;
transition: background-color 0.6s ease;
:hover,
:focus,
:active {
background-color: #ccc;
}
`;
const AccordionTitle = styled.p`
font-family: "Open Sans", sans-serif;
font-weight: 600;
font-size: 14px;
`;
const AccordionContent = styled.div`
background-color: red;
overflow: hidden;
transition: 0.6s;
`;
const AccordionText = styled.div`
font-family: "Open Sans", sans-serif;
font-weight: 400;
font-size: 14px;
padding: 18px;
`;
const AccordionSection = styled.div`
display: flex;
flex-direction: column;
`;
Accordion.propTypes = {
title: PropTypes.string.isRequired,
content: PropTypes.node.isRequired,
id: PropTypes.string.isRequired,
};
function Accordion(props) {
const [isAccordionExpanded, setIsAccordionExpanded] = useState(false);
const toggleAccordion = () => {
setIsAccordionExpanded(!isAccordionExpanded);
};
return (
<AccordionSection>
<AccordionBtn onClick={toggleAccordion}>
<AccordionTitle>
{props.title}
</AccordionTitle>
<ArrowTemplate
color={'black'}
direction={isAccordionExpanded === true ? 'up' : 'down'}
onClick={toggleAccordion}
/>
</AccordionBtn>
<AccordionContent
style={{height: isAccordionExpanded === true ? "100px" : "0"}}
>
<AccordionText>
{props.content}
</AccordionText>
</AccordionContent>
</AccordionSection>
);
}
export default Accordion;
What this code does, is extends the accordeon on click. Preety simple. But now, I want to move this height:
<AccordionContent
style={{height: isAccordionExpanded === true ? "100px" : "0"}}
>
here:
const AccordionContent = styled.div`
background-color: red;
overflow: hidden;
transition: 0.6s;
`;
The problem is I need to use state, and if I declare it in the function, it will get re-rendered, and not run the animation. How can I pass the state to the styled-component?
You can just pass the isAccordionExpanded
directly to the styled component. Change your style from this:
const AccordionContent = styled.div`
background-color: red;
overflow: hidden;
transition: 0.6s;
`;
to include this
height: ${({ isAccordionExpanded }) => (isAccordionExpanded ? "100px" : "0"};
Another way to do animation in React is using React Transition Group , Quite good
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