Question

我使用Bootstrap的JavaScript模态插件向应用程序添加对话框，我成功使用了它，但是当模态对话框打开或关闭时尝试使用渐变动画时，我遇到了一个问题。

按照Bootstrap documentation和w3schools中的说明，如果我使用以下标记：

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

弹出模式成功打开，没有任何淡入淡出的动画

当我想使用淡入淡出动画时，我向模态类中添加了fade：

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

结果是透明背景，没有显示弹出模式！

我用过Bootstrap v4.3.1 ...我在这里想念的东西!!!

谢谢。

Answer 1

Bootstrap 4模式框与渐变类完美配合。请参阅W3schools

如果您在引导程序4中寻找模态的淡入淡出动画，则以下示例相同

<!DOCTYPE html>
<html lang="en">

<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
</head>

<body>

  <div class="container">
    <!-- Button to Open the Modal -->
    <button type="button" class="btn btn-primary" data-toggle="modal" data-target="#myModal">
    Open modal
  </button>

    <!-- The Modal -->
    <div class="modal fade" id="myModal">
      <div class="modal-dialog">
        <div class="modal-content">

          <!-- Modal Header -->
          <div class="modal-header">
            <h4 class="modal-title">Modal Heading</h4>
            <button type="button" class="close" data-dismiss="modal">&times;</button>
          </div>

          <!-- Modal body -->
          <div class="modal-body">
            Modal body..
          </div>

          <!-- Modal footer -->
          <div class="modal-footer">
            <button type="button" class="btn btn-danger" data-dismiss="modal">Close</button>
          </div>

        </div>
      </div>
    </div>

  </div>

</body>

</html>

Answer 2

当我尝试在没有按钮的情况下打开模态时遇到了同样的问题。我不知道为什么，而是这样：

$('#myModal').show();

这样做有效：

$('#myModal').modal("show");

Answer 3

请参阅以下代码：

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
 <!-- <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css">-->
 <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
  <!-- <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script> -->
 <!--  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script> -->
 <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/1.14.6/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>
</head>
<body>

<div class="container">
  <h2>Modal Example</h2>
  <!-- Trigger the modal with a button -->
  <button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>

  <!-- Modal -->
  <div class="modal fade" id="myModal" 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>https://stackoverflow.com/questions/56521289/bootstrap-modal-dialog-not-showing-when-using-fade-animation#
  </div>
  
</div>

</body>
</html>

Answer 4

用简单的“data-target”替换诸如“data-bs-target”标签之类的标签，删除“-bs-”使其工作。

使用淡入淡出动画时不显示Bootstrap模态对话框

4 个答案: