How to hide collapsible Bootstrap 4 navbar on clic

问题:

I've created this collapsable navbar using Bootstrap 4 that works nicely, but I would like it to close when the user clicks on a link. Any way to do this? Thanks

html navbar:

<nav class="navbar navbar-toggleable-md fixed-top">

<button id="nav-btn"class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarDiv"  aria-expanded="false" aria-label="Toggle navigation">
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
 </button>

            <div class="container">

                <a class="navbar-brand" href="#"><img src="Images/logo.png" width="60px"></a>

                    <div class="collapse navbar-collapse" id="navbarDiv">

                        <ul class="navbar-nav mr-auto">

                            <li class="nav-item active">

                                <a class="nav-link" href="#home">Home <span class="sr-only">(current)</span></a>

                            </li>

                            <li class="nav-item">

                                <a class="nav-link" href="#about-us">About</a>

                            </li>

                            <li class="nav-item">

                                <a class="nav-link" href="#pricing">Pricing</a>

                            </li>

                        </ul>

                    </div>

            </div>

        </nav>

css for .icon-bar, since Bootstrap 4 doesn't use the icon-bar class.

.navbar-toggler .icon-bar {
  margin: 7px;
  display: block;
  width: 22px;
  height: 1px;
  background-color: #cccccc;
  border-radius: 1px;
}

回答1:

You can add the collapse component to the links like this..

<ul class="navbar-nav mr-auto">
     <li class="nav-item active">
         <a class="nav-link" href="#home" data-toggle="collapse" data-target=".navbar-collapse.show">Home <span class="sr-only">(current)</span></a>
     </li>
     <li class="nav-item">
         <a class="nav-link" href="#about-us" data-toggle="collapse" data-target=".navbar-collapse.show">About</a>
     </li>
     <li class="nav-item">
         <a class="nav-link" href="#pricing" data-toggle="collapse" data-target=".navbar-collapse.show">Pricing</a>
     </li>
 </ul>

Demo using 'data-toggle' method

Or, (perhaps a better way) use jQuery like this..

$('.navbar-nav>li>a').on('click', function(){
    $('.navbar-collapse').collapse('hide');
});

Demo using jQuery method

Update 2018 Bootstrap 4.0.0

The navbar has changed, but the click after close method is still the same:

https://www.codeply.com/go/nFDHoEqqJQ

回答2:

I am using ANGULAR and since it gave me problems the routerLink just add the data-toggle and target in the li tag.... or use jquery like "ZimSystem"

<div class="collapse navbar-collapse" id="navbarSupportedContent">
      <ul class="navbar-nav mr-auto">
        <li class="nav-item" data-toggle="collapse" data-target=".navbar-collapse.show">
          <a class="nav-link" routerLink="/inicio" routerLinkActive="active" >Inicio</a>
        </li>
      </ul>
</div>

回答3:

You can call $.collapse('hide'); with an event handler on the links.

$('.nav-link').on('click',function() {
  $('.navbar-collapse').collapse('hide');
});

.navbar-toggler .icon-bar {
  margin: 7px;
  display: block;
  width: 22px;
  height: 1px;
  background-color: #cccccc;
  border-radius: 1px;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar navbar-toggleable-md fixed-top">
  <button id="nav-btn" class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarDiv" aria-expanded="false" aria-label="Toggle navigation">
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
 </button>
  <div class="container">
    <a class="navbar-brand" href="#"><img src="Images/logo.png" width="60px"></a>
    <div class="collapse navbar-collapse" id="navbarDiv">
      <ul class="navbar-nav mr-auto">
        <li class="nav-item active">
          <a class="nav-link" href="#home">Home <span class="sr-only">(current)</span></a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#about-us">About</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#pricing">Pricing</a>
        </li>
      </ul>
    </div>
  </div>
</nav>

回答4:

With trying out above solutions, I was missing a solution for Dropdown toggles, so here you go! Also opens submenu items.

Maybe you have to tweak it a bit if your toggle class is different.

$('.navbar-nav li a').on('click', function(){
    if(!$( this ).hasClass('dropdown-toggle')){
        $('.navbar-collapse').collapse('hide');
    }
});

回答5:

I am using Angular 5 with Boostrap 4. It works for me in this way.

 $(document).on('click', '.navbar-nav>li>a, .navbar-brand, .dropdown-menu>a', function (e) {
      if ( $(e.target).is('a') && $(e.target).attr('class') != 'nav-link dropdown-toggle' ) {
        $('.navbar-collapse').collapse('hide');
      }
    });
   }

<nav class="navbar navbar-expand-lg navbar-dark bg-primary">
  <a class="navbar-brand" [routerLink]="['/home']">FbShareTool</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarColor01" aria-controls="navbarColor01" aria-expanded="false" aria-label="Toggle navigation" style="">
    <span class="navbar-toggler-icon"></span>
  </button>

  <div class="collapse navbar-collapse" id="navbarColor01">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active" *ngIf="_myAuthService.isAuthenticated()">
        <a class="nav-link" [routerLink]="['/dashboard']">Dashboard <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item dropdown" *ngIf="_myAuthService.isAuthenticated()">
          <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
            Manage
          </a>
          <div class="dropdown-menu" aria-labelledby="navbarDropdown">
            <a class="dropdown-item" [routerLink]="['/fbgroup']">Facebook Group</a>
            <div class="dropdown-divider"></div>
            <a class="dropdown-item" href="#">Fetch Data</a>
          </div>
      </li>
    </ul>

    <ul class="navbar-nav navbar-right navbar-right-link">
        <li class="nav-item" *ngIf="!_myAuthService.isAuthenticated()" >
            <a class="nav-link" (click)="logIn()">Login</a>
        </li>
        <li class="nav-item" *ngIf="_myAuthService.isAuthenticated()">
           <a class="nav-link">{{ _myAuthService.userDetails.displayName }}</a>
        </li>
        <li class="nav-item" *ngIf="_myAuthService.isAuthenticated() && _myAuthService.userDetails.photoURL">
            <a>
              <img [src]="_myAuthService.userDetails.photoURL" alt="profile-photo" class="img-fluid rounded" width="40px;">
            </a>
        </li>
        <li class="nav-item" *ngIf="_myAuthService.isAuthenticated()">
            <a class="nav-link" (click)="logOut()">Logout</a>
        </li>
    </ul>

  </div>
</nav>

回答6:

The easiest way to do it using only Angular 2/4 template with no coding:

<nav class="navbar navbar-default" aria-expanded="false">
  <div class="container-wrapper">

    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" (click)="isCollapsed = !isCollapsed">
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
    </div>

    <div class="navbar-collapse collapse no-transition" [attr.aria-expanded]="!isCollapsed" [ngClass]="{collapse: isCollapsed}">
      <ul class="nav navbar-nav" (click)="isCollapsed = !isCollapsed">
        <li [routerLinkActive]="['active']" [routerLinkActiveOptions]="{exact: true}"><a routerLink="/">Home</a></li>
        <li [routerLinkActive]="['active']"><a routerLink="/about">About</a></li>
        <li [routerLinkActive]="['active']"><a routerLink="/portfolio">Portfolio</a></li>
        <li [routerLinkActive]="['active']"><a routerLink="/contacts">Contacts</a></li>
      </ul>
    </div>

  </div>
</nav>