How to hide Nav bar in some react components

问题

I am trying to make a login flow using react. Routes are working as expected. But when I try to introduce nav bar, it is visible on all routes. I want to show nav bar only on selected components (only on profile and home route).

Any suggestions would be appreciated.

This is the Routes.js:

export default class Routes extends Component {
  render() {
    return (
      <Switch>
        <Route
          exact
          path='/*/home'
          component={Home}
        />
        <Route
          exact
          path='/*/login'
          component={Login}
        />
        <Route
          exact
          path='/*/profile'
          component={Profile}
        />
        <Route
          exact
          path='/'
          component={Main}
        />
        <Route
          exact
          path='/*/'
          component={Org}
        />
      </Switch>
    );
  }
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

This is the App.js:

<div className="App">
  <Nav />
  <Routes />
</div>

回答1:

Your Nav component is being rendered in every view because it's located outside your views. There are a couple of options here:

Move Nav into home & profile only. This would make sense if you wanted to keep your Routes component the same.
Build a higher-order component for rendering a view withNav. This would be the best option if you need to render more than just home & profile with a Nav on top. Let's say you have a modal that needs to have the exact same Nav (for some reason), it may make sense to build an HOC
Change your component tree to reflect the structure that you need. If only home & profile need the Nav, it may make sense to declare those two routes in a separate component.

回答2:

You can try Hiding the navbar in css, and Just show in Specific Component Using React-Helmet

 <Helmet>
      <style type="text/css">{`
    .navbar {
        display: inline
    }

`}</style>
    </Helmet>

来源：https://stackoverflow.com/questions/53097610/how-to-hide-nav-bar-in-some-react-components

标签

reactjs

react-router-v4