如何在ReactJS中的不同页面上显示不同风格的导航栏

Question

我有三个不同的导航栏。它们中的每一个都是不同的组成部分。

• <PublicNavbar />，用于LandingPage、DiscoverPage等公共页面
• <AccessNavbar />，用于SignInPage、SignUppage、VerificationPage等
• <PrivateNavbar />，用于NewCampaignPage等私人页面

如何正确显示它们？如果用户已登录，我希望将DiscoverPage的PublicNavbar替换为PrivateNavbar。

import React from "react";
import { BrowserRouter as Router, Route, Link, Switch } from "react-router-dom";
import "semantic-ui-css/semantic.min.css";
import "./App.css";
import PublicNavbar from "./components/Navbar/PublicNavbar";
import AccessNavbar from "./components/Navbar/AccessNavbar";
import PrivateNavbar from "./components/Navbar/PrivateNavbar";
import Footer from "./components/Footer";
import LandingPage from "./pages/LandingPage";
import SignIn from "./pages/SIgnInPage";
import DiscoverPage from "./pages/DiscoverPage";
import SignUp from "./pages/SignUpPage";
import Verification from "./pages/VerificationPage";
import Registration from "./pages/RegistrationPage";
import RegistrationComplete from "./pages/RegistrationCompletePage";
import NewCampaign from "./pages/NewCampaignPage";
function App() {
return (
<Router>
<div>
<div id="container">
<div id="main">
<Switch>
<Route path="/" exact component={LandingPage} />
<Route path="/discover" component={DiscoverPage} />
<Route path="/signIn" component={SignIn} />
<Route path="/signUp" component={SignUp} />
<Route path="/verification" component={Verification} />
<Route path="/registration" component={Registration} />
<Route
path="/registration-complete"
component={RegistrationComplete}
/>
<Route path="/new-campaign" component={NewCampaign} />
</Switch>
</div>
</div>
<Footer />
</div>
</Router>
);
}
export default App;

示例导航栏代码：

import React from "react";
const PublicNavbar = () => {
return (
<nav className="navbar navbar-expand-lg bg-white">
<div className="container-fluid navbar-container">
<a className="navbar-brand abs nav-bar-title" href="#">
AshoDaanKori
</a>
<button
className="navbar-toggler ms-auto custom-toggler"
type="button"
data-bs-toggle="collapse"
data-bs-target="#collapseNavbar"
>
<span className="navbar-toggler-icon"></span>
</button>
<div className="navbar-collapse collapse" id="collapseNavbar">
<ul className="navbar-nav ms-auto">
<li className="nav-item active">
<a
className="nav-link"
href=""
data-bs-target="#myModal"
data-bs-toggle="modal"
>
About
</a>
</li>
<li className="nav-item active">
<a
className="nav-link"
href=""
data-bs-target="#myModal"
data-bs-toggle="modal"
>
How it works
</a>
</li>
<li className="nav-item active">
<a
className="nav-link"
href=""
data-bs-target="#myModal"
data-bs-toggle="modal"
>
Discover
</a>
</li>
</ul>
<a
className="nav-link navbar-btn"
href=""
data-bs-target="#myModal"
data-bs-toggle="modal"
>
Start Campaign
</a>
</div>
</div>
</nav>
);
};
export default PublicNavbar;

Answer 1

创建一个名为类似NavBarController的新Navbar组件。当调用导航条控制器部件时；类型"；作为道具。类型应该是一个状态，并且应该根据用户状态进行更改。

<NavBarController type={1}></NavBarController>

让NavBarController处理三个导航栏中要显示的导航栏(其中类型为1,2或3(。

您的NavBarController将返回如下内容：

return (props.type===1?<PublicNavbar/>
:props.type===2?<AccessNavbar/>
:props.type===3?<PrivateNavbar/>)

Answer 2

通过条件渲染解决。在没有创建多个导航栏组件的情况下，我创建了一个，并根据条件更改了内部元素。

const Navbar = ({ isAuthenticated }) => {
return (
<nav
className={`autohide navbar navbar-expand-lg bg-white ${
isAuthenticated ? "private-navbar" : ""
}`}
>
<div className="container-fluid navbar-container">
<NavHashLink className="navbar-brand abs nav-bar-title" to="/">
AshoDaanKori
</NavHashLink>
<button
className="navbar-toggler ms-auto custom-toggler"
type="button"
data-bs-toggle="collapse"
data-bs-target="#main_nav"
aria-expanded="false"
aria-label="Toggle navigation"
>
<span className="navbar-toggler-icon"></span>
</button>
{isAuthenticated ? (
<div className="collapse navbar-collapse" id="main_nav">
<ul className="navbar-nav ms-auto">
<li className="nav-item active">
<NavHashLink to="/my-fundraisers" className="nav-link">
My fundraisers
</NavHashLink>
</li>
</ul>
<Link to="/start-campaign" className="nav-link navbar-btn">
Start a new campaign
</Link>
{/* User profile */}
<div className="btn-group nav-item">
<button
type="button"
className="btn "
data-bs-toggle="dropdown"
data-bs-display="static"
aria-expanded="false"
style={{ padding: "0" }}
>
<i aria-hidden="true" className="user circle huge icon"></i>
</button>
<ul className="dropdown-menu dropdown-menu-end">
<li>
<h3
style={{
textAlign: "center",
fontSize: 18,
fontWeight: 600,
color: "#6E6E6E",
}}
>
{userInfo.fullName || "User"}
</h3>
</li>
<li>
<hr className="dropdown-divider" />{" "}
</li>
<li>
<Link className="dropdown-item" to="/account">
Account Settings
</Link>
</li>
<li>
<Link
className="dropdown-item"
to="#"
>
Sign Out
</Link>
</li>
</ul>
</div>
</div> //If authenticated, rendered PrivateNavbar elements
) : (
<div className="collapse navbar-collapse" id="main_nav">
<ul className="navbar-nav ms-auto">
<li className="nav-item active">
<NavHashLink
smooth
to="/#our-story-section"
className="nav-link"
>
About
</NavHashLink>
</li>
<li className="nav-item active">
<NavHashLink to="/how-it-works" className="nav-link">
How it works
</NavHashLink>
</li>
<li className="nav-item active">
<NavHashLink to="/discover" className="nav-link">
Discover
</NavHashLink>
</li>
</ul>
<NavHashLink to="/sign-in" className="nav-link navbar-btn">
START CAMPAIGN
</NavHashLink>
</div> //If not authenticated, rendered PublicNavbar elements
)}
</div>
</nav>
);
};
export default Navbar;