Guide complet pour créer une barre de navigation collante pour une meilleure navigation dans React JS

Dans cette session, nous créerons une barre de navigation collante avec Tailwind CSS et React JS.

Vous pouvez voir le processus d'installation de React et Tailwind CSS dans l'article précédent

Créons immédiatement le code de la barre de navigation

Créer du HTML pour l'affichage de la barre de navigation

<React.Fragment>
      <nav className={`fixed inset-x-0 top-0 z-50 flex items-center justify-center h-[60px] py-3 [&.is-sticky]:bg-white  border-b border-slate-200  [&.is-sticky]:shadow-lg [&.is-sticky]:shadow-slate-200/25 navba ${navClass}`} id="navbar">
        <div className="container 2xl:max-w-[90rem] px-4 mx-auto flex items-center self-center w-full">
          <div className="mx-auto">
            <ul id="navbar7" className={`absolute inset-x-0 z-20 items-center py-3 bg-white shadow-lg dark:bg-zink-600 dark:md:bg-transparent md:z-0 navbar-menu rounded-b-md md:shadow-none md:flex top-full ltr:ml-auto rtl:mr-auto md:relative md:bg-transparent md:rounded-none md:top-auto md:py-0`}>
              <li>
                <a href="#home"
                  className={`block md:inline-block px-4 md:px-3 py-2.5 md:py-0.5 text-15 font-medium text-slate-800 transition-all duration-300 ease-linear hover:text-red-500 [&.active]:text-red-500 dark:text-zink-100 dark:hover:text-red-500 dark:[&.active]:text-red-500 ${activeLink === "/Home" ? "active" : ""}`}
                  onClick={() => handleLinkClick("/Home")}
                >
                  Home</a>
              </li>
              <li>
                <a href="#features"
                  className={`block md:inline-block px-4 md:px-3 py-2.5 md:py-0.5 text-15 font-medium text-slate-800 transition-all duration-300 ease-linear hover:text-red-500 [&.active]:text-red-500 dark:text-zink-100 dark:hover:text-red-500 dark:[&.active]:text-red-500 ${activeLink === "/Features" ? "active" : ""}`}
                  onClick={() => handleLinkClick("/Features")}
                >
                  Layanan Kami</a>
              </li>
            </ul>
          </div>

        </div>
      </nav>
      <section className="relative mt-[60px] h-[800px] bg-yellow-600" id="home">
        <div className="flex items-center justify-center h-full">
          HOME
        </div>
        </section>
      <section className="relative h-[800px] bg-green-600" id="features">
        <div className="flex items-center justify-center h-full">
          FEATURES
        </div>
      </section>
    </React.Fragment>

Fonction de défilement

Cette fonction est utilisée pour changer l'état de la barre de navigation en collant, et également ajouter des animations fluides pour que le processus de changement de page soit bon

  const [navClass, setNavClass] = React.useState<string>('');

  const scrollNavigation = () => {
    var scrollUp = document.documentElement.scrollTop;
    if (scrollUp >= 50) {
      setNavClass('is-sticky');
    } else {
      setNavClass('');
    }
  };


  React.useEffect(() => {
    window.addEventListener('scroll', scrollNavigation, true);
    document.documentElement.classList.add("overflow-x-hidden", "scroll-smooth", "group");

    return () => {
      window.removeEventListener('scroll', scrollNavigation, true);
      document.documentElement.classList.remove("overflow-x-hidden", "scroll-smooth", "group");

    };
  }, []);

Définir la fonction de menu active

Cette fonction sert à changer la classe active dans le menu, et oriente la page en fonction du menu consulté

  const [activeLink, setActiveLink] = React.useState<string>("/Home");
  const handleLinkClick = (target: string) => {
    setActiveLink(target);
  };

Le script complet est le suivant

import React from "react"

function App() {



  const [navClass, setNavClass] = React.useState<string>('');

  const scrollNavigation = () => {
    var scrollUp = document.documentElement.scrollTop;
    if (scrollUp >= 50) {
      setNavClass('is-sticky');
    } else {
      setNavClass('');
    }
  };


  React.useEffect(() => {
    window.addEventListener('scroll', scrollNavigation, true);
    document.documentElement.classList.add("overflow-x-hidden", "scroll-smooth", "group");

    return () => {
      window.removeEventListener('scroll', scrollNavigation, true);
      document.documentElement.classList.remove("overflow-x-hidden", "scroll-smooth", "group");

    };
  }, []);



  const [activeLink, setActiveLink] = React.useState<string>("/Home");
  const handleLinkClick = (target: string) => {
    setActiveLink(target);
  };



  return (
    <React.Fragment>
      <nav className={`fixed inset-x-0 top-0 z-50 flex items-center justify-center h-[60px] py-3 [&.is-sticky]:bg-white  border-b border-slate-200  [&.is-sticky]:shadow-lg [&.is-sticky]:shadow-slate-200/25 navba ${navClass}`} id="navbar">
        <div className="container 2xl:max-w-[90rem] px-4 mx-auto flex items-center self-center w-full">
          <div className="mx-auto">
            <ul id="navbar7" className={`absolute inset-x-0 z-20 items-center py-3 bg-white shadow-lg dark:bg-zink-600 dark:md:bg-transparent md:z-0 navbar-menu rounded-b-md md:shadow-none md:flex top-full ltr:ml-auto rtl:mr-auto md:relative md:bg-transparent md:rounded-none md:top-auto md:py-0`}>
              <li>
                <a href="#home"
                  className={`block md:inline-block px-4 md:px-3 py-2.5 md:py-0.5 text-15 font-medium text-slate-800 transition-all duration-300 ease-linear hover:text-red-500 [&.active]:text-red-500 dark:text-zink-100 dark:hover:text-red-500 dark:[&.active]:text-red-500 ${activeLink === "/Home" ? "active" : ""}`}
                  onClick={() => handleLinkClick("/Home")}
                >
                  Home</a>
              </li>
              <li>
                <a href="#features"
                  className={`block md:inline-block px-4 md:px-3 py-2.5 md:py-0.5 text-15 font-medium text-slate-800 transition-all duration-300 ease-linear hover:text-red-500 [&.active]:text-red-500 dark:text-zink-100 dark:hover:text-red-500 dark:[&.active]:text-red-500 ${activeLink === "/Features" ? "active" : ""}`}
                  onClick={() => handleLinkClick("/Features")}
                >
                  Layanan Kami</a>
              </li>
            </ul>
          </div>

        </div>
      </nav>
      <section className="relative mt-[60px] h-[800px] bg-yellow-600" id="home">
        <div className="flex items-center justify-center h-full">
          HOME
        </div>
        </section>
      <section className="relative h-[800px] bg-green-600" id="features">
        <div className="flex items-center justify-center h-full">
          FEATURES
        </div>
      </section>
    </React.Fragment>
  )
}

export default App

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