Bootstrap手风琴，点击时滚动到活动手风琴的顶部，我将如何在嵌套手风琴上实现？

Question

我正在使用 Bootstrap 制作一个响应式站点，它包含带有大量文本的嵌套手风琴，当您阅读到底部并单击下一个手风琴时，大量文本被折叠，我被留在页面底部。

我从Bootstrap accordion, scroll to top of active (open) accordion on click? 找到了这个有用的代码，但它只滚动到第一级。 当我单击嵌套手风琴时，它滚动两次，滚动位置并不完美。 我从上面提到的链接中添加了下面的脚本。

$(文档).ready(函数(){ $('.panel-collapse').on('shown.bs.collapse', function(e) { var $panel = $(this).closest('.panel'); $('html,body').animate({ 滚动顶部：$panel.offset().top }, 500); }); });

HTML

<pre>

        <br><br><br><br><br><br><br><br><br><br><br><br><br>
                <div class="bs-example" data-example-id="collapse-accordion">
                <div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
                    <div class="panel panel-default">
                        <div class="panel-heading" role="tab" id="headingOne">
                            <h4 class="panel-title">
                                <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseOne" aria-expanded="true" aria-controls="collapseOne" class=""> Collapsible Group Item #1 </a>
                            </h4>
                        </div>
                        <div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne" aria-expanded="true">
                            <div class="panel-body">
                                Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia 
                                aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred 
                                nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
                                <div class="panel-group" id="accordion1" role="tablist" aria-multiselectable="true">
                                    <div class="panel panel-default">
                                        <div class="panel-heading" role="tab" id="headingOne1">
                                            <h4 class="panel-title">
                                                <a role="button" data-toggle="collapse" data-parent="#accordion1" href="#collapseOne1" aria-expanded="true" aria-controls="collapseOne1" class=""> Collapsible Group Item #1 </a>
                                            </h4>
                                        </div>
                                        <div id="collapseOne1" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne1" aria-expanded="true">
                                            <div class="panel-body"> Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 
                                                wolf moon fficia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf  oon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice  omo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
                                            </div>
                                        </div>
                                        <div class="panel panel-default">
                                            <div class="panel-heading" role="tab" id="headingOne2">
                                                <h4 class="panel-title">
                                                    <a role="button" data-toggle="collapse" data-parent="#accordion2" href="#collapseOne2" aria-expanded="true" aria-controls="collapseOne2" class=""> Collapsible Group Item #2 </a>
                                                </h4>
                                            </div>
                                            <div id="collapseOne2" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne2" aria-expanded="true">
                                                <div class="panel-body"> Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon  fficia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher  ice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.</div>
                                            </div>
                                            <div class="panel panel-default">
                                                <div class="panel-heading" role="tab" id="headingOne3">
                                                    <h4 class="panel-title">
                                                        <a role="button" data-toggle="collapse" data-parent="#accordion3" href="#collapseOne3" aria-expanded="true" aria-controls="collapseOne3" class=""> Collapsible Group Item #3 </a>
                                                    </h4>
                                                </div>
                                                <div id="collapseOne3" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne3" aria-expanded="true">
                                                    <div class="panel-body"> Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon fficia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan  xcepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
                                                    </div>
                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                            </div>
                            <div class="panel panel-default">
                                <div class="panel-heading" role="tab" id="headingTwo">
                                    <h4 class="panel-title"> <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo"> Collapsible Group Item #2 </a> </h4>
                                </div>
                                <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo" aria-expanded="false" style="height: 0px;">
                                    <div class="panel-body"> Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua
                                        put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table,
                                        raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS. 
                                    </div>
                                </div>
                            </div>
                            <div class="panel panel-default">
                                <div class="panel-heading" role="tab" id="headingThree">
                                    <h4 class="panel-title"> <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseThree" aria-expanded="false" aria-controls="collapseThree"> Collapsible Group Item #3 </a> </h4>
                                </div>
                                <div id="collapseThree" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingThree" aria-expanded="false" style="height: 0px;">
                                    <div class="panel-body"> Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua
                                        put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table,
                                        raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS. 
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                    <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>

    </pre>

Answer 1

试试这个，添加e.preventDefault()和e.stopPropagation()来防止双击。

$('.panel-collapse').on('shown.bs.collapse', function(e) {
    e.preventDefault();  
    e.stopPropagation();

    var $panel = $(this).closest('.panel');
                  $('html,body').animate({
                    scrollTop: $panel.offset().top
                  }, 500);
});

https://jsfiddle.net/9frgj25z/14/