如何在 Bootstrap 可折叠 sidenav 中添加活动类 onclick答案

【问题标题】：How to add active class onclick in Bootstrap collapsible sidenav如何在 Bootstrap 可折叠 sidenav 中添加活动类 onclick
【发布时间】：2018-12-13 12:16:45
【问题描述】：

我正在尝试在单击时在引导可折叠侧导航中添加/删除活动类。如果我单击特定选项卡，它应该处于活动状态，直到我切换到另一个选项卡。已尝试使用 addclass/removeclass，但 html onclick 没有变化。在我的示例中，id 添加了“活动”，但不会从其他元素中删除。任何人都可以建议如何实现这一目标。

$(document).ready(function () {
            $('#sidebarCollapse').on('click', function () {
                $('#sidebar').toggleClass('active');
            });
        });

/* ---------------------------------------------------
    SIDEBAR STYLE
----------------------------------------------------- */

.wrapper {
    display: flex;
    align-items: stretch;
}

#sidebar {
    min-width: 250px;
    max-width: 250px;
    background: #dde4e8;
    color: #000;
    transition: all 0.3s;
}

#sidebar.active {
    min-width: 100px;
    max-width: 100px;
    text-align: center;
}

#sidebar.active .sidebar-header h3,
#sidebar.active .CTAs {
    display: none;
}

#sidebar.active .sidebar-header strong {
    display: block;
}

#sidebar ul li a {
    text-align: left;
}


#sidebar.active ul li a {
    padding: 20px 10px;
    text-align: center;
    font-size: 0.85em;
}

#sidebar.active ul li a icon{
    display:none;
}

#sidebar.active ul li a i {
    margin-right: 0;
    display: block;
    font-size: 1.8em;
    margin-bottom: 5px;
}

#sidebar.active ul ul a {
    padding: 10px !important;
}

#sidebar.active .dropdown-toggle::after {
    top: auto;
    bottom: 10px;
    right: 50%;
    -webkit-transform: translateX(50%);
    -ms-transform: translateX(50%);
    transform: translateX(50%);
}

#sidebar .sidebar-header {
    padding: 24px;
    background: #dde4e8;
    border-bottom: 1px solid #c60429 ;
}

#sidebar .sidebar-header1{
    padding: 20px;
    background: #dde4e8;
}

#sidebar .sidebar-header strong {
    display: none;
    font-size: 1.8em;
}

#sidebar ul.components {
    padding: 20px 0;
    border-bottom: 1px solid #c60429 ;
}

#sidebar ul li a {
    padding: 10px;
    font-size: 1.1em;
    display: block;
}

#sidebar ul li a:hover {
    color: #c60429 ;
    background: #fff;
}

#sidebar ul li a i {
    margin-right: 10px;
}

#sidebar ul li.active>a,
a[aria-expanded="true"] {
    color: #fff;
    background: #c60429;
}

a[data-toggle="collapse"] {
    position: relative;
}

.dropdown-toggle::after {
    display: block;
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
}

ul ul a {
    font-size: 0.9em !important;
    padding-left: 30px !important;
    background: #c60429;
}

ul.CTAs {
    padding: 20px;
}

ul.CTAs a {
    text-align: center;
    font-size: 0.9em !important;
    display: block;
    border-radius: 5px;
    margin-bottom: 5px;
}

a.download {
    background: #fff;
    color: #c60000;
}

a.article,
a.article:hover {
    background: #c60429 !important;
    color: #fff !important;
}

/* ---------------------------------------------------
    CONTENT STYLE
----------------------------------------------------- */

#content {
    width: 100%;
    padding: 20px;
    min-height: 100vh;
    transition: all 0.3s;
}

/* ---------------------------------------------------
    MEDIAQUERIES
----------------------------------------------------- */

@media (max-width: 768px) {
    #sidebar {
        min-width: 130px;
        max-width: 130px;
        text-align: center;
        margin-left: -130px !important;
    }
    .dropdown-toggle::after {
        top: auto;
        bottom: 10px;
        right: 50%;
        -webkit-transform: translateX(50%);
        -ms-transform: translateX(50%);
        transform: translateX(50%);
    }
    #sidebar.active {
        margin-left: 0 !important;
    }
    #sidebar .sidebar-header h3,
    #sidebar .CTAs {
        display: none;
    }
    #sidebar .sidebar-header strong {
        display: block;
    }
    #sidebar ul li a {
        padding: 20px 10px;
    }
    #sidebar ul li a span {
        font-size: 0.85em;
    }
    #sidebar ul li a i {
        margin-right: 0;
        display: block;
    }
    #sidebar ul ul a {
        padding: 10px !important;
    }
    #sidebar ul li a i {
        font-size: 1.3em;
    }
    #sidebar {
        margin-left: 0;
    }
    #sidebarCollapse span {
        display: none;
    }
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<nav id="sidebar">
            <div class="sidebar-header ">
                <h3><img src="/logo2.png" class="img-fluid flex-center"></h3>  
                <strong><img src="/logo1.png" class="img-fluid flex-center"></strong>
                
            </div>
            <div class="sidebar-header1">
            </div>
            <ul class="list-unstyled components">
                <li class ="active">
                    <a href="/" >
                        <i class="fas fa-home"></i>
                       <icon>Home</icon>
                    </a>
                </li>
                <li>
                    <a href="#">
                        <i class="fas fa-building"></i>
                        <icon>Organizations</icon>
                    </a>
                </li>     
                
                <li>
                    <a href="#">
                        <i class="fas fa-chart-pie"></i>
                        <icon>Reports</icon>
                    </a>
                </li>
            </ul>
        </nav>
        
        <button type="button" id="sidebarCollapse" class="btn btn-info">
                        <i class="fas fa-align-left"></i>
                        
                    </button>

【问题讨论】：

试试这个演示Active Class

标签： javascript html css bootstrap-4 sidebar

【解决方案1】：

使用

         $('#sidebar ul li').on('click', function () {
             $('#sidebar ul .active').removeClass('active');
            $(this).addClass('active');
        });

见 sn-p：

$(document).ready(function () {
            $('#sidebarCollapse').on('click', function () {
                $('#sidebar').toggleClass('active');
            });
             $('#sidebar ul li').on('click', function () {
                 $('#sidebar ul .active').removeClass('active');
                $(this).addClass('active');
            });
        });

.wrapper {
    display: flex;
    align-items: stretch;
}

#sidebar {
    min-width: 250px;
    max-width: 250px;
    background: #dde4e8;
    color: #000;
    transition: all 0.3s;
}

#sidebar.active {
    min-width: 100px;
    max-width: 100px;
    text-align: center;
}

#sidebar.active .sidebar-header h3,
#sidebar.active .CTAs {
    display: none;
}

#sidebar.active .sidebar-header strong {
    display: block;
}

#sidebar ul li a {
    text-align: left;
}


#sidebar.active ul li a {
    padding: 20px 10px;
    text-align: center;
    font-size: 0.85em;
}

#sidebar.active ul li a icon{
    display:none;
}

#sidebar.active ul li a i {
    margin-right: 0;
    display: block;
    font-size: 1.8em;
    margin-bottom: 5px;
}

#sidebar.active ul ul a {
    padding: 10px !important;
}

#sidebar.active .dropdown-toggle::after {
    top: auto;
    bottom: 10px;
    right: 50%;
    -webkit-transform: translateX(50%);
    -ms-transform: translateX(50%);
    transform: translateX(50%);
}

#sidebar .sidebar-header {
    padding: 24px;
    background: #dde4e8;
    border-bottom: 1px solid #c60429 ;
}

#sidebar .sidebar-header1{
    padding: 20px;
    background: #dde4e8;
}

#sidebar .sidebar-header strong {
    display: none;
    font-size: 1.8em;
}

#sidebar ul.components {
    padding: 20px 0;
    border-bottom: 1px solid #c60429 ;
}

#sidebar ul li a {
    padding: 10px;
    font-size: 1.1em;
    display: block;
}

#sidebar ul li a:hover {
    color: #c60429 ;
    background: #fff;
}

#sidebar ul li a i {
    margin-right: 10px;
}

#sidebar ul li.active>a,
a[aria-expanded="true"] {
    color: #fff;
    background: #c60429;
}

a[data-toggle="collapse"] {
    position: relative;
}

.dropdown-toggle::after {
    display: block;
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
}

ul ul a {
    font-size: 0.9em !important;
    padding-left: 30px !important;
    background: #c60429;
}

ul.CTAs {
    padding: 20px;
}

ul.CTAs a {
    text-align: center;
    font-size: 0.9em !important;
    display: block;
    border-radius: 5px;
    margin-bottom: 5px;
}

a.download {
    background: #fff;
    color: #c60000;
}

a.article,
a.article:hover {
    background: #c60429 !important;
    color: #fff !important;
}

/* ---------------------------------------------------
    CONTENT STYLE
----------------------------------------------------- */

#content {
    width: 100%;
    padding: 20px;
    min-height: 100vh;
    transition: all 0.3s;
}

/* ---------------------------------------------------
    MEDIAQUERIES
----------------------------------------------------- */

@media (max-width: 768px) {
    #sidebar {
        min-width: 130px;
        max-width: 130px;
        text-align: center;
        margin-left: -130px !important;
    }
    .dropdown-toggle::after {
        top: auto;
        bottom: 10px;
        right: 50%;
        -webkit-transform: translateX(50%);
        -ms-transform: translateX(50%);
        transform: translateX(50%);
    }
    #sidebar.active {
        margin-left: 0 !important;
    }
    #sidebar .sidebar-header h3,
    #sidebar .CTAs {
        display: none;
    }
    #sidebar .sidebar-header strong {
        display: block;
    }
    #sidebar ul li a {
        padding: 20px 10px;
    }
    #sidebar ul li a span {
        font-size: 0.85em;
    }
    #sidebar ul li a i {
        margin-right: 0;
        display: block;
    }
    #sidebar ul ul a {
        padding: 10px !important;
    }
    #sidebar ul li a i {
        font-size: 1.3em;
    }
    #sidebar {
        margin-left: 0;
    }
    #sidebarCollapse span {
        display: none;
    }
}

  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<nav id="sidebar">
            <div class="sidebar-header ">
                <h3><img src="/logo2.png" class="img-fluid flex-center"></h3>  
                <strong><img src="/logo1.png" class="img-fluid flex-center"></strong>
                
            </div>
            <div class="sidebar-header1">
            </div>
            <ul class="list-unstyled components">
                <li class ="active">
                    <a href="/" >
                        <i class="fas fa-home"></i>
                       <icon>Home</icon>
                    </a>
                </li>
                <li>
                    <a href="#">
                        <i class="fas fa-building"></i>
                        <icon>Organizations</icon>
                    </a>
                </li>     
                
                <li>
                    <a href="#">
                        <i class="fas fa-chart-pie"></i>
                        <icon>Reports</icon>
                    </a>
                </li>
            </ul>
        </nav>
        
        <button type="button" id="sidebarCollapse" class="btn btn-info">
                        <i class="fas fa-align-left"></i>
                        
                    </button>

【讨论】：

@Ezhilan 你是什么意思？？
重定向到其他标签后。它再次将活动类设置为主页选项卡。
是的。也试过了。如果我删除活动，重新加载后没有一个选项卡类是活动的..
点击选项卡后..它立即切换到活动类..但重新加载后没有一个选项卡类是活动的
而不是 href ="#"，如果我给了一个链接它不会切换

【解决方案2】：

在这里您将事件绑定到错误的元素。你应该绑定到#sidebar ul > li 而不是另一个#sidebarCollapse。

在此之前，您还必须同时切换任何.active 元素，然后才能切换另一个元素。

$(document).ready(function () {
            $('#sidebar ul > li').on('click', function () {
                $('#sidebar ul > li.active').toggleClass('active');
                $(this).toggleClass('active');
            });
        });

/* ---------------------------------------------------
    SIDEBAR STYLE
----------------------------------------------------- */

.wrapper {
    display: flex;
    align-items: stretch;
}

#sidebar {
    min-width: 250px;
    max-width: 250px;
    background: #dde4e8;
    color: #000;
    transition: all 0.3s;
}

#sidebar.active {
    min-width: 100px;
    max-width: 100px;
    text-align: center;
}

#sidebar.active .sidebar-header h3,
#sidebar.active .CTAs {
    display: none;
}

#sidebar.active .sidebar-header strong {
    display: block;
}

#sidebar ul li a {
    text-align: left;
}


#sidebar.active ul li a {
    padding: 20px 10px;
    text-align: center;
    font-size: 0.85em;
}

#sidebar.active ul li a icon{
    display:none;
}

#sidebar.active ul li a i {
    margin-right: 0;
    display: block;
    font-size: 1.8em;
    margin-bottom: 5px;
}

#sidebar.active ul ul a {
    padding: 10px !important;
}

#sidebar.active .dropdown-toggle::after {
    top: auto;
    bottom: 10px;
    right: 50%;
    -webkit-transform: translateX(50%);
    -ms-transform: translateX(50%);
    transform: translateX(50%);
}

#sidebar .sidebar-header {
    padding: 24px;
    background: #dde4e8;
    border-bottom: 1px solid #c60429 ;
}

#sidebar .sidebar-header1{
    padding: 20px;
    background: #dde4e8;
}

#sidebar .sidebar-header strong {
    display: none;
    font-size: 1.8em;
}

#sidebar ul.components {
    padding: 20px 0;
    border-bottom: 1px solid #c60429 ;
}

#sidebar ul li a {
    padding: 10px;
    font-size: 1.1em;
    display: block;
}

#sidebar ul li a:hover {
    color: #c60429 ;
    background: #fff;
}

#sidebar ul li a i {
    margin-right: 10px;
}

#sidebar ul li.active>a,
a[aria-expanded="true"] {
    color: #fff;
    background: #c60429;
}

a[data-toggle="collapse"] {
    position: relative;
}

.dropdown-toggle::after {
    display: block;
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
}

ul ul a {
    font-size: 0.9em !important;
    padding-left: 30px !important;
    background: #c60429;
}

ul.CTAs {
    padding: 20px;
}

ul.CTAs a {
    text-align: center;
    font-size: 0.9em !important;
    display: block;
    border-radius: 5px;
    margin-bottom: 5px;
}

a.download {
    background: #fff;
    color: #c60000;
}

a.article,
a.article:hover {
    background: #c60429 !important;
    color: #fff !important;
}

/* ---------------------------------------------------
    CONTENT STYLE
----------------------------------------------------- */

#content {
    width: 100%;
    padding: 20px;
    min-height: 100vh;
    transition: all 0.3s;
}

/* ---------------------------------------------------
    MEDIAQUERIES
----------------------------------------------------- */

@media (max-width: 768px) {
    #sidebar {
        min-width: 130px;
        max-width: 130px;
        text-align: center;
        margin-left: -130px !important;
    }
    .dropdown-toggle::after {
        top: auto;
        bottom: 10px;
        right: 50%;
        -webkit-transform: translateX(50%);
        -ms-transform: translateX(50%);
        transform: translateX(50%);
    }
    #sidebar.active {
        margin-left: 0 !important;
    }
    #sidebar .sidebar-header h3,
    #sidebar .CTAs {
        display: none;
    }
    #sidebar .sidebar-header strong {
        display: block;
    }
    #sidebar ul li a {
        padding: 20px 10px;
    }
    #sidebar ul li a span {
        font-size: 0.85em;
    }
    #sidebar ul li a i {
        margin-right: 0;
        display: block;
    }
    #sidebar ul ul a {
        padding: 10px !important;
    }
    #sidebar ul li a i {
        font-size: 1.3em;
    }
    #sidebar {
        margin-left: 0;
    }
    #sidebarCollapse span {
        display: none;
    }
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<nav id="sidebar">
            <div class="sidebar-header ">
                <h3><img src="/logo2.png" class="img-fluid flex-center"></h3>  
                <strong><img src="/logo1.png" class="img-fluid flex-center"></strong>
                
            </div>
            <div class="sidebar-header1">
            </div>
            <ul class="list-unstyled components">
                <li class ="active">
                    <a href="/" >
                        <i class="fas fa-home"></i>
                       <icon>Home</icon>
                    </a>
                </li>
                <li>
                    <a href="#">
                        <i class="fas fa-building"></i>
                        <icon>Organizations</icon>
                    </a>
                </li>     
                
                <li>
                    <a href="#">
                        <i class="fas fa-chart-pie"></i>
                        <icon>Reports</icon>
                    </a>
                </li>
            </ul>
        </nav>
        
        <button type="button" id="sidebarCollapse" class="btn btn-info">
                        <i class="fas fa-align-left"></i>
                        
                    </button>

【讨论】：