在页面加载时在Bootstrap容器中打开模态

Question

我正在使用Bootstrap模式显示进度条，而许多图库缩略图图像预加载。模态工作正常，在页面加载时自动打开，并在预加载完成时隐藏。但是，模态会使整个屏幕变暗 - 相反，我想让Navbar保持可见状态，并使其他所有内容变暗。我点击时使用shuffle.js来排序和显示图库图像，并且由于某种原因它以我想要的方式显示模态，但我无法弄清楚为什么和反向工程解决方案。这是我目前的情况：

$(document).ready(function(){
    $("#myModal").modal('show');
});

<div id="myModal" class="modal">
  <span class="close" onclick="document.getElementById('myModal').style.display='none'">&times;</span>
  <img class="modal-content" id="img01">
  <div id="caption"></div>
</div>

Answer 1

Bootstrap使用带有z-index 1040的模态的modal-backdrop类，因此您可以将导航栏位置设置为Relative，并将其z-index设置为1040以上。

.yourNavbarClass{ 
 position:relative;
 z-index:1200;
 }

Answer 2

你在使用bootstrap 4吗？

Demo

$(document).ready(function() {
  $("#myModal").modal('show');
});

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">

<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>


<div id="myModal" class="modal" tabindex="-1" role="dialog">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title">Modal title</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        <p>Modal body text goes here.</p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div>
  </div>
</div>

Answer 3

这是你期待的答案。即使引导模型打开，也会在前面显示div。通过设置固定位置和z-index大于模型，您将实现此目的。请看代码

这只是您可以根据需要更改代码的示例

$(document).ready(function(){
    $("#myModal").modal('show');
});

#textfront{
  position: fixed;
  z-index: 2000;
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>
<div id="textfront">
<h1>
this text will be visible even when model is shown
</h1>
</div>


<div id="myModal" class="modal fade" role="dialog">
  <div class="modal-dialog">

    <!-- Modal content-->
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal">&times;</button>
        <h4 class="modal-title">Modal Header</h4>
      </div>
      <div class="modal-body">
        <p>Some text in the modal.</p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
      </div>
    </div>

  </div>
</div>