Updating the active tab in the navigation bar whenever the router navigates

I'm struggling with changing the active tab in Angular 2 and Bootstrap 4. I have managed to get the active tab to change using this code snippet:

navbar.component.html

<nav class="navbar navbar-fixed-top navbar-light bg-faded">
  <button class="navbar-toggler hidden-sm-up" type="button" data-toggle="collapse" data-target="#navbar">
    &#9776;
  </button>
  <div class="collapse navbar-toggleable-xs" id="navbar">
  <div class="container">
    <a class="navbar-brand" [routerLink]="['']">My App</a>
    <ul class="nav navbar-nav navbar-right">
      <li class="nav-item" routerLinkActive="active" [routerLinkActiveOptions]="{exact:
true}">
        <a class="nav-link" [routerLink]="['']">Home<span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item" [routerLinkActive]="['active']" [routerLinkActiveOptions]="{exact:true}">
        <a class="nav-link" [routerLink]="['/about']">About</a>
      </li>
      <li class="nav-item" [routerLinkActive]="['active']" [routerLinkActiveOptions]="{exact:true}">
        <a class="nav-link" [routerLink]="['/example']">Example</a>
      </li>      
    </ul>
  </div>
  </div>
</nav>

Although, I'm facing an issue when I navigate to a component using something like:

this.router.navigate(['']);

The active tab fails to change along with the navigation. Is there a workaround to ensure that the active tab changes during navigation like the scenario mentioned above?

Answer №1

In order to achieve the desired result of customizing highlighting within a service and applying it based on specific URL states, you can utilize the following approach:

this.router.url === '/target-url'

For a practical demonstration, feel free to check out this demo. Please note that the active tab will dynamically switch based on whether the links or buttons are used. The buttons implement this.router.navigate(['']); as per your initial inquiry.

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