What is the best way to implement seamless transitions between different components in my code?

Question

What is the best way to implement seamless transitions between different components in my code?

I'm currently developing my own single page application and I want the content to have a smooth animation effect as I scroll down, instead of being static. Despite searching for guides on this topic, I haven't found any helpful resources yet. An excellent example of what I'm aiming for can be seen on qanplatform.com - they have these beautiful transitions between components as you scroll down. Could this possibly be achieved through code-splitting?

Essentially, my structure looks like this:

<div className='App'>
  <Navbar/>
  <Hero/>
  <Stats/>
  <Business/>
  <Team/>
  <Footer/>
</div>

I am looking for a way to have each component render with a simple animation only when it comes into view as I scroll down the page, rather than loading all at once. I don't require anyone to write code for me, just some guidance on how to approach this. Qanplatform.com perfectly embodies the concept I have in mind.

javascript css reactjs tailwind-css vite

Answer 1

Answer №1

Here's a simple alternative method that doesn't require an intersection observer. By combining CSS animation keyframes with JavaScript, you can detect and reveal content based on its height.

Check out this article for more information:

function reveal() {
  var reveals = document.querySelectorAll(".reveal");

  for (var i = 0; i < reveals.length; i++) {
    var windowHeight = window.innerHeight;
    var elementTop = reveals[i].getBoundingClientRect().top;
    var elementVisible = 150;

    if (elementTop < windowHeight - elementVisible) {
      reveals[i].classList.add("active");
    } else {
      reveals[i].classList.remove("active");
    }
  }
}

window.addEventListener("scroll", reveal);

@import url("https://fonts.googleapis.com/css2?family=Asap&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Asap", sans-serif;
}
body {
  background: #42455a;
}
/* Styles for sections */
...

@keyframes fade-right {
  /* Animation keyframes for fading in from the right */
}

<section>
  <h1>Scroll Down to Reveal Elements &#8595;</h1>
</section>
<section>
  <div class="container reveal fade-bottom">
    <h2>Caption</h2>
    <div class="text-container">
      <div class="text-box">
        <h3>Section Text</h3>
        <p>
          Lorem ipsum dolor sit amet consectetur adipisicing elit. Tempore
          eius molestiae perferendis eos provident vitae iste.
        </p>
      </div>
      ...
    </div>
  </div>
</section>

Answer 2

Here's a simple alternative method that doesn't require an intersection observer. By combining CSS animation keyframes with JavaScript, you can detect and reveal content based on its height.

Check out this article for more information:

function reveal() {
  var reveals = document.querySelectorAll(".reveal");

  for (var i = 0; i < reveals.length; i++) {
    var windowHeight = window.innerHeight;
    var elementTop = reveals[i].getBoundingClientRect().top;
    var elementVisible = 150;

    if (elementTop < windowHeight - elementVisible) {
      reveals[i].classList.add("active");
    } else {
      reveals[i].classList.remove("active");
    }
  }
}

window.addEventListener("scroll", reveal);

@import url("https://fonts.googleapis.com/css2?family=Asap&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Asap", sans-serif;
}
body {
  background: #42455a;
}
/* Styles for sections */
...

@keyframes fade-right {
  /* Animation keyframes for fading in from the right */
}

<section>
  <h1>Scroll Down to Reveal Elements &#8595;</h1>
</section>
<section>
  <div class="container reveal fade-bottom">
    <h2>Caption</h2>
    <div class="text-container">
      <div class="text-box">
        <h3>Section Text</h3>
        <p>
          Lorem ipsum dolor sit amet consectetur adipisicing elit. Tempore
          eius molestiae perferendis eos provident vitae iste.
        </p>
      </div>
      ...
    </div>
  </div>
</section>

Answer 3

Answer №2

Utilize the IntersectionObserver to detect new elements entering the viewport and then apply animated styles to them. This same technique can be implemented in React using refs instead of relying on class names or inline styles.

const intersectionCallback = (entries) => {
  entries.forEach((entry) => {
    if (entry.isIntersecting) {
      //add a new class
      entry.target.classList.add('fade-in-up');
    }
  });
}



const options = {
  rootMargin: '0px',
  threshold: 0 //when it just appear in your viewport, you can modify it based on your needs
}

const observer = new IntersectionObserver(intersectionCallback, options);

//find all elements which have a class name `content` to observe, you can use React's refs as well
const contentElements = document.querySelectorAll('.content')

for (const contentElement of contentElements) {
  observer.observe(contentElement)
}

@keyframes fadeInUp {
  from { transform: translate3d(0, 40px, 0); }
  to { transform: translate3d(0, 0, 0); opacity: 1; }
}


/*Animation styles*/
.fade-in-up {
  opacity: 0;
  animation-duration: 2s;
  animation-fill-mode: both;
  animation-name: fadeInUp;
}

.content {
  height: 100vh;
  width: 100vw;
}

<div class="content">
  <h1>Scroll down to see the animation</h1>
</div>
<div class="content">
  <h1>Scroll down to see the animation</h1>
</div>
<div class="content">
  <h1>End</h1>
</div>

Answer 4

Utilize the IntersectionObserver to detect new elements entering the viewport and then apply animated styles to them. This same technique can be implemented in React using refs instead of relying on class names or inline styles.

const intersectionCallback = (entries) => {
  entries.forEach((entry) => {
    if (entry.isIntersecting) {
      //add a new class
      entry.target.classList.add('fade-in-up');
    }
  });
}



const options = {
  rootMargin: '0px',
  threshold: 0 //when it just appear in your viewport, you can modify it based on your needs
}

const observer = new IntersectionObserver(intersectionCallback, options);

//find all elements which have a class name `content` to observe, you can use React's refs as well
const contentElements = document.querySelectorAll('.content')

for (const contentElement of contentElements) {
  observer.observe(contentElement)
}

@keyframes fadeInUp {
  from { transform: translate3d(0, 40px, 0); }
  to { transform: translate3d(0, 0, 0); opacity: 1; }
}


/*Animation styles*/
.fade-in-up {
  opacity: 0;
  animation-duration: 2s;
  animation-fill-mode: both;
  animation-name: fadeInUp;
}

.content {
  height: 100vh;
  width: 100vw;
}

<div class="content">
  <h1>Scroll down to see the animation</h1>
</div>
<div class="content">
  <h1>Scroll down to see the animation</h1>
</div>
<div class="content">
  <h1>End</h1>
</div>

Answer 5

Answer №3

If you're looking to add animations on scroll, you can choose between Animate On Scroll (AOS) or GreenSock Animation Platform (GSAP).

While both options are user-friendly, I'll demonstrate using AOS for its simplicity in this example:

// Initiate the library after the page loads
AOS.init();

/* Basic styling (optional) */

div {
  margin-top: 50vh;
}

<!-- Include the necessary libraries for AOS -->
<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ea8b8599aad8c4d9c4db">[email protected]</a>/dist/aos.css" rel="stylesheet"/>
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ddbcb2ae9deff3eef3ec">[email protected]</a>/dist/aos.js"></script>

<body>
  <div data-aos="fade-up">This element fades up on scroll</div>
  <div data-aos="fade-up">This element fades up on scroll</div>
  <div data-aos="fade-up">This element fades up on scroll</div>
  
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  
  Explore more examples on the AOS homepage
</body>

To implement this in a React project, simply import the necessary libraries.

Answer 6

If you're looking to add animations on scroll, you can choose between Animate On Scroll (AOS) or GreenSock Animation Platform (GSAP).

While both options are user-friendly, I'll demonstrate using AOS for its simplicity in this example:

// Initiate the library after the page loads
AOS.init();

/* Basic styling (optional) */

div {
  margin-top: 50vh;
}

<!-- Include the necessary libraries for AOS -->
<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ea8b8599aad8c4d9c4db">[email protected]</a>/dist/aos.css" rel="stylesheet"/>
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ddbcb2ae9deff3eef3ec">[email protected]</a>/dist/aos.js"></script>

<body>
  <div data-aos="fade-up">This element fades up on scroll</div>
  <div data-aos="fade-up">This element fades up on scroll</div>
  <div data-aos="fade-up">This element fades up on scroll</div>
  
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  <div data-aos="fade-right">This element fades right on scroll</div>
  
  Explore more examples on the AOS homepage
</body>

To implement this in a React project, simply import the necessary libraries.

What is the best way to implement seamless transitions between different components in my code?

Answer №1

Answer №2

Answer №3

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