Animations with React JS

Question

I have a few sort filters on my page, and I want to create animation when user click on one of them.

If user want to sort by the lowest price, I want to show the new list, but with some animations.

I try to do it with React JS.

On componentWillMount I set the state with all cars :

componentWillMount(){
    const cart = this.props.cart;
    const listID = this.props.params.id;
    const allCars = data.getAllCars();
    let offers = this.state.offers;

    cart.map(car => {
        const aCar = allCars.find(c => {
            return c.id === car.carID;
        });
        offers[aCar.chassis] = car.offer;
        this.setState({offers: offers});
    });


    //We set state with all cars in this list
    const cars = carData.getCarsInCurrentList(listID, allCars);
    this.setState({cars: cars});
}

and then when user clicks on one of the sort filters I handle it on this function :

handleSortingFilters(name, event){

    event.preventDefault();
    const cars = this.state.cars;
    const sortFilterValue = this.state.sortFiltersInit[name];
    let filteredCars = "";

    if(sortFilterValue){
        //descending order
        filteredCars = cars.sort((a, b) => {
            if(name === "initialRegistration"){
                return Date.parse(b[name]) - Date.parse(a[name]);
            }else{
                return parseFloat(b[name]) - parseFloat(a[name]);
            }
        });
    }else{
        //ascending order
        filteredCars = cars.sort((a, b) => {
            if(name === "initialRegistration") {
                return Date.parse(a[name]) - Date.parse(b[name]);
            }else{
                return parseFloat(a[name]) - parseFloat(b[name]);
            }

        });
    }

    let sortFiltersInit = this.state.sortFiltersInit;
    sortFiltersInit[name] = !this.state.sortFiltersInit[name];

    let allFilters = this.state.allFilters;
    allFilters[name] = name;

    this.setState({cars: filteredCars, sortFiltersInit: sortFiltersInit, allFilters: allFilters});
}

Thus, I update the state with the filtered list of cars. Everything works perfect, but I would like also to apply some css animations on the list when user clicks on one of the sort filters.

Any ideas or link to some good tutorials?

Thanks.

UPDATE

The list where the cars are rendered :

<div className="cars">
            <div>
                <ReactCSSTransitionGroup
                transitionName="example"
                transitionAppear={true}
                transitionAppearTimeout={500}
                transitionEnterTimeout={500}
                transitionLeaveTimeout={500}>

                {cars.map((car, i) => {
                    const initialReg = car.initialRegistration.slice(0,3) + car.initialRegistration.slice(6,10);
                    // str.slice(1, 4) extracts the second character through the fourth character (characters indexed 1, 2, and 3)

                    return (
                        <div key={i} className="carBox noPadding">
                            <div className="carBoxContent">

                                <PhotoAndFavorites car={car} language={language} changeStarIcon={this.changeStarIcon} addToFavorites={addToFavorites} userEmail={currentUserEmail} favorites={favorites}/>

                                <div className="carNameAndDesc">
                                    <div><Link to="" style={{textDecoration: 'none'}}>{car.make}</Link></div>
                                    <div>{car.desc}</div>
                                </div>

                                <div className="carPrice">
                                    <div>{car.price}</div>
                                    <div>{car.btw}</div>
                                </div>

                                <div className="extraFeatures" style={{marginBottom: 5, backgroundColor: '#eee'}}>

                                </div>

                                <div className="mainFeatures">
                                    <div><img src="../images/portal/user/status/fuel-icon.png" style={{height: 12}}/> <span>{car.fuel}</span></div>
                                    <div><img src="../images/portal/user/status/road-icon.png" style={{height: 12}}/> <span>{car.mileage}</span></div>
                                    <div><img src="../images/portal/user/status/calendar-icon.png" style={{height: 12}}/> <span>{initialReg}</span></div>
                                </div>

                                <Buttons car={car}
                                         language={language}
                                         changeButton={this.changeButton}
                                         addToCard={addToCard}
                                         removeFromCard={removeFromCard}
                                         cartContent={cartContent}
                                         userEmail={currentUserEmail}
                                         handleChange={handleOffers}
                                         offers={offers}
                                         opacity={this.props.opacity}
                                         />

                            </div>
                        </div>
                    );
                })}
                </ReactCSSTransitionGroup>
            </div>
            <div className="clearfix"/>
        </div>

I added also this css :

 .example-appear {
  opacity: 0.01;
}

.example-appear.example-appear-active {
  opacity: 1;
  transition: opacity .5s ease-in;
}

Dmitriy Nevzorov · Accepted Answer · 2016-08-30 08:31:06Z

1

You can use react-addons-css-transition-group

ReactCSSTransitionGroup is based on ReactTransitionGroup and is an easy way to perform CSS transitions and animations when a React component enters or leaves the DOM. It's inspired by the excellent ng-animate library.

This will trigger a transition in your main layout every time you change a route

css

.example-enter {
  opacity: 0.01;
  transition: opacity .5s ease-in;
}

.example-enter.example-enter-active {
  opacity: 1;
}

.example-leave {
  opacity: 1;
  transition: opacity .5s ease-in;
}

.example-leave.example-leave-active {
  opacity: 0;
}

js

import React from 'react'
import ReactCSSTransitionGroup from 'react-addons-css-transition-group'

render() {
  return(
    <ReactCSSTransitionGroup
      component="ul"
      transitionName="example"
      transitionEnterTimeout={500}
      transitionLeaveTimeout={500}>
      {this.state.cars.map(car => <li key={car.id}>{car.name}</li>)}
    </ReactCSSTransitionGroup>
  )
}

If you need a shuffle animation try react-shuffle - Animated shuffling of child components

import React, {Component} from 'react';
import Shuffle from 'react-shuffle';

class App extends Component {
  render() {
    return (
      <Shuffle>
        {// Method to render children goes here}
      </Shuffle>
    )
  }
}

edited Aug 30, 2016 at 8:31

answered Aug 29, 2016 at 8:47

Dmitriy Nevzorov

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6 Comments

Boky Over a year ago

I've added what you said, but it isn't working. See the updated question.

Inoir Over a year ago

If you want the animation also on the initial call you need to add the 'transitionAppear={true}' prop! Your example is not working, cause you render the transition group and the content on the same time.

Inoir Over a year ago

Forgot: you need also transitionAppearTimeout={500} More information: facebook.github.io/react/docs/…

Boky Over a year ago

It works on page load. But I want that my list order is shuffled if I click on one of those filters. Now if I click on the filter there is no animation.

Boky Over a year ago

It worked. The trick was The only real requirement is that each child has a non-index based key, for proper position identification.

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