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How can I animate a hidden card to appear

I have a set of MUI cards. One of these cards is hidden until the other cards are expanded. When the cards expand, the hidden card then appears. I want to animate the hidden card so that it does not suddenly pop in.
** Styling **
const useStyles = makeStyles((theme) => ({
summaryBox: {
display: "flex",
},
qCard: {
backgroundColor: "#D9F5FD",
border: "1px solid #E1E1E1",
width: "5vw",
height: "auto",
marginRight: "1vw",
animation: "pop 500ms ease-in-out forwards",
},
expand: {
transform: "rotate(0deg)",
marginLeft: "auto",
transition: theme.transitions.create("transform", {
duration: theme.transitions.duration.shortest,
}),
},
expandOpen: {
transform: "rotate(180deg)",
},
}));
...
const [expanded, setExpanded] = useState(false);
const [hidden, setHidden] = useState(true);
const handleExpandClick = () => {
setExpanded(!expanded);
setHidden(!hidden);
};
...
<Box className={classes.summaryBox} onClick={handleExpandClick} aria-expanded={expanded}>
<Card className={classes.qCard} hidden={hidden}>
<Collapse in={expanded} timeout="auto" unmountOnExit>
</Collapse>
</Card>
</Box>

I can suggest of use the easing prop on the collapse component.
https://mui.com/material-ui/api/collapse/

Try adding this css,
qCard: {
backgroundColor: "#D9F5FD",
border: "1px solid #E1E1E1",
width: 0,
height: 0,
marginRight: "1vw"
},
animate: {
animation: "$myEffect 500ms ease-in-out forwards"
},
"#keyframes myEffect": {
"0%": {
width: 0,
height: 0,
},
"100%": {
width: "5vw",
height: "auto"
}
}
Dynamically add the animate style based on hidden value.

How can I change the color of MUI styled component?

I have a MUI styled component that renders a green circular badge.
const StyledGreenBadge = styled(Badge)(({ theme }) => ({
'& .MuiBadge-badge': {
backgroundColor: '#44b700',
color: '#44b700',
width: '15px',
height: '15px',
borderRadius: '100%',
boxShadow: `0 0 0 2px ${theme.palette.background.paper}`,
'&::after': {
position: 'absolute',
top: 0,
left: 0,
width: '100%',
height: '100%',
borderRadius: '50%',
animation: 'ripple 1.2s infinite ease-in-out',
border: '1px solid currentColor',
content: '""',
},
},
'#keyframes ripple': {
'0%': {
transform: 'scale(.8)',
opacity: 1,
},
'100%': {
transform: 'scale(2.4)',
opacity: 0,
},
},
}));
Now, I want my code to be DRY, so I want to create a StyledYellowBadge.
All I have to do is somehow just change the color property of StyledGreenBadge.
Yet, I could not figure out how for 3 hours.
I have tried something like this:
color: { desiredColor === 'yellow' ? 'yellow' : #44b700'},
where desiredColor is a second argument, after
{ theme }
How can I make achieve this?

You can add custom properties to your styled MUI component by describing the type:
const StyledGreenBadge = styled(Badge)<{ badgeColor?: string }>(
Then, you can pass described property (badgeColor in this case) to your styled Badge component:
<StyledGreenBadge badgeColor="red" badgeContent={4} color="primary">
and assign it to the property you want:
backgroundColor: props.badgeColor ?? "#44b700",
Full code:
const StyledGreenBadge = styled(Badge)<{ badgeColor: string }>(
({ theme, ...props }) => {
console.log(props);
return {
"& .MuiBadge-badge": {
backgroundColor: props.badgeColor ?? "#44b700",
color: "#44b700",
width: "15px",
height: "15px",
borderRadius: "100%",
boxShadow: `0 0 0 2px ${theme.palette.background.paper}`,
"&::after": {
position: "absolute",
top: 0,
left: 0,
width: "100%",
height: "100%",
borderRadius: "50%",
animation: "ripple 1.2s infinite ease-in-out",
border: "1px solid currentColor",
content: '""'
}
},
"#keyframes ripple": {
"0%": {
transform: "scale(.8)",
opacity: 1
},
"100%": {
transform: "scale(2.4)",
opacity: 0
}
}
};
}
);
export default function SimpleBadge() {
return (
<StyledGreenBadge badgeColor="red" badgeContent={4} color="primary">
<MailIcon color="action" />
</StyledGreenBadge>
);
}
Demo

React Slick slider, current active slide overlapped by next slide

I'm currently using Slick in order to make a carousel.
I'm having two issues right now, let's start with the first one.
1)
I'm currently using a slider in which i want to show 3 slides: the current image (Spyro), the previous one (Crash) and the next one (Tekken).
As you see, while the current slide correctly overlaps the previous one (Spyro > Crash), the next one overlaps the current slide (Tekken > Spyro).
Of course i want the current slide to be on top of both of them... How can i fix this?
I'm attacching the code below.
App.js
import "./App.css";
import { useEffect, useState } from "react";
import Slider from "react-slick";
import SliderData from "./SliderData";
import { AiOutlineArrowLeft, AiOutlineArrowRight } from "react-icons/ai";
function useWindowSize() {
const [size, setSize] = useState([window.innerHeight, window.innerWidth]);
useEffect(() => {
const handleResize = () => setSize([window.innerHeight, window.innerWidth]);
window.addEventListener("resize", handleResize);
}, [])
return size;
}
const array = SliderData.map((x) => {
return x.image;
})
console.log(array);
function App() {
const NextArrow = ({ onClick }) => {
return (
<div className="arrow next" onClick={onClick}>
<AiOutlineArrowRight />
</div>
);
};
const PrevArrow = ({ onClick }) => {
return (
<div className="arrow prev" onClick={onClick}>
<AiOutlineArrowLeft />
</div>
);
};
const [imageIndex, setImageIndex] = useState(0);
const [height, width] = useWindowSize();
const settings = {
className: "center",
infinite: true,
lazyLoad: true,
speed: 300,
slidesToShow: width > 1000 ? 3: 1,
centerMode: true,
centerPadding: "60px",
nextArrow: <NextArrow />,
prevArrow: <PrevArrow />,
beforeChange: (current, next) => {
console.log(current);
setImageIndex(next);
}
};
return (
<div className="App">
<Slider {...settings}>
{array.map((img, idx) => (
<div className={idx === imageIndex ? "slide activeSlide" : "slide"}>
<img src={img} alt={img} />
</div>
))}
</Slider>
</div>
);
}
export default App;
App.css
#import "~slick-carousel/slick/slick.css";
#import "~slick-carousel/slick/slick-theme.css";
.App {
width: 100%;
margin: 10rem auto;
height: 570px;
}
.slide img {
width: 35rem;
align-items: center;
margin: 0 auto;
z-index: 1;
}
.slide {
transform: scale(0.8);
transition: transform 300ms;
opacity: 0.5;
z-index: -1;
}
.activeSlide {
transform: scale(1.1);
align-items: center;
opacity: 1;
}
.arrow {
background-color: #fff;
position: absolute;
cursor: pointer;
z-index: 10;
}
.arrow svg {
transition: color 300ms;
}
.arrow svg:hover {
color: #68edff;
}
.next {
right: 3%;
top: 50%;
}
.prev {
left: 3%;
top: 50%;
}
SliderData.js
const SliderData = [
{
image:
"https://www.spaziogames.it/wp-content/uploads/2020/06/Crash-4-Pirate_06-29-20.jpg"
},
{
image:
"https://d2skuhm0vrry40.cloudfront.net/2018/articles/2018-07-18-14-24/news-videogiochi-spyro-reignited-trilogy-video-di-gameplay-livello-colossus-1531920251281.jpg/EG11/thumbnail/750x422/format/jpg/quality/60"
},
{
image: "https://i.ytimg.com/vi/OUh82pOFGDU/maxresdefault.jpg"
},
{
image: "https://www.psu.com/wp/wp-content/uploads/2020/07/MetalGearSolidRemake-1024x576.jpg"
}
];
export default SliderData;
2)
As you see, the active slide is not perfectly centered. Since i suck in CSS i did not use the display: flex; command.
What do you suggest? how can i fix this?
Thank you all.

You need to apply a position element to .slide for the z-index to work properly.
Note: z-index only works on positioned elements (position: absolute, position: relative, position: fixed, or position: sticky) and flex items (elements that are direct children of display:flex elements).
You can read more on z-index here

This is my answer for this issue. Basically you should set position and z-index for every item and set higher z-index for current active item
.App .slick-slide {
position: relative;
z-index: 1;
/* your choice, but make sure z-index of active slide is higher than this value */
}
.App .slick-slide.slick-current {
z-index: 10;
}

positioning side nav over react google maps

Hi I am making a site with google maps in Reactjs using the npm module google-map-react.
I was first using the module npm google-maps-react and have now decided to use google-map-react.
With the first npm package this was working perfectly but now my side navigation appears above the map instead of side by side.
The side nav is using react-transtion-group if that makes any difference.
It looks like this
side nav css
#mySidenav a {
position: absolute;
left: -10px;
transition: 0.3s;
padding: 9px;
text-decoration: none;
font-size: 20px;
color: black;
border-radius: 0 5px 5px 0;
border: 1px solid #000000;
}
#mySidenav a:hover {
left: 0px;
cursor: pointer;
background-color: gray;
}
#contact {
background-color: rgb(228, 225, 225);
}
/* slide enter */
.slide-enter {
opacity: 0;
transform: scale(0.97) translateX(5px);
z-index: 1;
}
.slide-enter.slide-enter-active {
opacity: 1;
transform: scale(1) translateX(0);
transition: opacity 3000ms linear 1000ms, transform 3000ms ease-in-out 1000ms;
}
/* slide exit */
.slide-exit {
opacity: 1;
transform: scale(1) translateX(0);
}
.slide-exit.slide-exit-active {
opacity: 0;
transform: scale(0.97) translateX(5px);
transition: opacity 1500ms linear, transform 1500ms ease-out;
}
.slide-exit-done {
opacity: 0;
}
App.Js
class App extends Component {
render() {
return (
<Switch>
<Route
exact
path="/reactapp"
render={() => (
<div id="wrapper">
<TopNav />
<SideNav />
<MapContainer />
</div>
)}
/>
</Switch>
);
}
}
Map
import React, { Component } from "react";
import GoogleMapReact from "google-map-react";
import { connect } from "react-redux";
import { fetchPosts, fetchItins } from "../../actions/postActions";
import PropTypes from "prop-types";
export class MapContainer extends Component {
static defaultProps = {
center: {
lat: 59.95,
lng: 30.33,
},
zoom: 11,
};
state = {
showingInfoWindow: false,
activeMarker: {},
selectedPlace: {},
};
onMarkerClick = (props, marker, e) =>
this.setState({
selectedPlace: props,
activeMarker: marker,
showingInfoWindow: true,
});
onMapClicked = (props) => {
if (this.state.showingInfoWindow) {
this.setState({
showingInfoWindow: false,
activeMarker: null,
});
}
};
componentDidMount() {}
toggleWindow() {
if (this.state.showingInfoWindow) {
} else if (!this.state.showingInfoWindow) {
}
}
render() {
console.log(this.props.posts);
return (
<div style={{ height: "100vh", width: "100%" }}>
<GoogleMapReact
bootstrapURLKeys={{ key: "AIzaSyAfpKoor5CLGg-HbDwdKHq9mGij2JA-YzE" }}
defaultCenter={this.props.center}
defaultZoom={this.props.zoom}
></GoogleMapReact>
</div>
);
}
}
MapContainer.propTypes = {
fetchPosts: PropTypes.func.isRequired,
posts: PropTypes.object.isRequired,
// newPost: PropTypes.object
};
const mapStateToProps = (state) => ({
posts: state.posts.items,
// newPost: state.posts.item
});
export default connect(mapStateToProps, { fetchPosts })(MapContainer);
Ideally I would just have this behind as like a background image and then everything else could just sit on top.

I resolved this by setting each layer to have a zindex (css). You can then load things on top of others depending on their z index.
e.g map z index = 0
sidenav z index = 1;
sidenav will appear on top

Implementing transition effects in React JS when state changes

I have an image on a React page. When the state is updated to a new image I want to perform the following transition effect:
The original image should zoom in and fade out
The new image should also zoom in and fade in
The effect should look similar to passing through a wall to a new scene.
How am I able to do this in React?

As #pgsandstrom mentioned, React Transition Group is the way to go. Unfortunately, it's not very developer friendly (pretty steep learning curve).
Here's a working example: https://codesandbox.io/s/6lmv669kz
✔ Original image zooms in while fading out
✔ New image zooms in while fading in
TransitionExample.js
import random from "lodash/random";
import React, { Component } from "react";
import { CSSTransition, TransitionGroup } from "react-transition-group";
import uuid from "uuid/v1";
const arr = [
{
id: uuid(),
url: `https://loremflickr.com/600/100?lock=${random(0, 999)}`
},
{
id: uuid(),
url: `https://loremflickr.com/600/100?lock=${random(0, 999)}`
},
{
id: uuid(),
url: `https://loremflickr.com/600/100?lock=${random(0, 999)}`
}
];
export default class TransitionExample extends Component {
state = {
index: 0,
selected: arr[0]
};
nextImage = () =>
this.setState(prevState => {
const newIndex = prevState.index < arr.length - 1 ? prevState.index + 1 : 0;
return {
index: newIndex,
selected: arr[newIndex]
};
});
render = () => (
<div className="app">
<div style={{ marginBottom: 30, height: 100 }}>
<TransitionGroup>
<CSSTransition
key={this.state.selected.id}
timeout={1000}
classNames="messageout"
>
<div style={{ marginTop: 20 }}>
<img className="centered-image" src={this.state.selected.url} />
</div>
</CSSTransition>
</TransitionGroup>
</div>
<div style={{ textAlign: "center" }}>
<button
className="uk-button uk-button-primary"
onClick={this.nextImage}
>
Next Image
</button>
</div>
</div>
);
}
styles.css
.app {
margin: 0 auto;
overflow: hidden;
width: 700px;
height: 800px;
}
.centered-image {
display: block;
margin: 0 auto;
}
/* starting ENTER animation */
.messageout-enter {
position: absolute;
top: 0;
left: calc(13% + 5px);
right: calc(13% + 5px);
opacity: 0.01;
transform: translateY(0%) scale(0.01);
}
/* ending ENTER animation */
.messageout-enter-active {
opacity: 1;
transform: translateY(0%) scale(1);
transition: all 1000ms ease-in-out;
}
/* starting EXIT animation */
.messageout-exit {
opacity: 1;
transform: scale(1.01);
}
/* ending EXIT animation */
.messageout-exit-active {
opacity: 0;
transform: scale(4);
transition: all 1000ms ease-in-out;
}

It sounds like you are looking for React Transition Group. It is the "official" way of solving these issues. Specifically I think this is what you should use. It can be a bit tricky to get a hang of, but it is really nice and powerful once you understand it.

This worked for me (link):
index.js:
import React from "react";
import { render } from "react-dom";
import "./styles.scss";
const src1 =
"https://www.nba.com/dam/assets/121028030322-james-harden-traded-102712-home-t1.jpg";
const src2 = "https://www.nba.com/rockets/sites/rockets/files/wcwebsite.jpg";
var state = {
toggle: true
};
class App extends React.Component {
render() {
const cn1 = "imgFrame " + (state.toggle ? "toggleOut" : "toggleIn");
const cn2 = "imgFrame " + (state.toggle ? "toggleIn" : "toggleOut");
return (
<div>
<img className={cn1} src={src1} alt={"img1"} />
<img className={cn2} src={src2} alt={"img2"} />
<button
onClick={() => {
state.toggle = !state.toggle;
this.forceUpdate();
}}
>
click me to toggle
</button>
<h1>Hello</h1>
</div>
);
}
}
render(<App />, document.getElementById("app"));
style.scss:
html,
body {
background-color: papayawhip;
font-family: sans-serif;
h1 {
color: tomato;
}
}
#keyframes fadeout {
0% {
opacity: 1;
transform: scale(1);
}
100% {
opacity: 0;
transform: scale(0.9);
}
}
#keyframes fadein {
0% {
opacity: 0;
transform: scale(1.1);
}
100% {
opacity: 1;
transform: scale(1);
}
}
.toggleOut {
animation: fadeout 500ms;
opacity: 0;
}
.toggleIn {
animation: fadein 500ms;
opacity: 1;
}
.imgFrame {
position: absolute;
top: 10px;
left: 10px;
width: 200px;
height: 200px;
}
button {
position: absolute;
top: 220px;
}

Wrap with a simple <Animate on={value} /> component that triggers an animation when value changes and is not undefined.
function Animate({ children, on }) {
return (on === undefined)
? <div>{children}</div>
: <div className="fade-in" key={on}>{children}</div>
}
import { useEffect, useState } from 'react'
function TestAnimate() {
const [value, setValue] = useState() // undefined
// update value every second
useEffect(() => {
setInterval(() => setValue(new Date().toLocaleString()), 1_000)
}, [])
return (
<Animate on={value}>
Value: {value}
</Animate>
)
}
#keyframes fadeIn {
from { opacity: 0; }
to { opacity: 1; }
}
.fade-in {
animation: fadeIn 500ms ease-in-out;
}