问题描述
在bootstap 4.x中,如果其中一个父元素设置了overflow
属性,则不会正确放置工具提示。在下面的代码示例中,我使用overflow: auto;
,但是overflow: scroll;
也不起作用。
如何防止工具提示与按钮元素重叠?我需要在可滚动容器中使用它,而是将其放置在内部逻辑中。
$(function () {
$('[data-toggle="tooltip"]').tooltip();
})
#wrapper{
margin-top: 100px;
width: 100vw;
overflow: hidden;
border: 1px solid red;
overflow: auto;
}
#scrollable{
width: 2000px;
background: pink;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/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://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>
<div id="wrapper">
<div id="scrollable">
<button type="button" class="btn btn-secondary" data-toggle="tooltip" title="Tooltip with some text in it maybe a lot of text" data-container="body">
Tooltip btn
</button>
</div>
</div>
解决方法
解决方案是将boundary
attribute设置为默认值'scrollParent'
为'window'
,一切正常。在用法部分,您将找到another example。
$(function () {
$('[data-toggle="tooltip"]').tooltip({ boundary: 'window' });
})
#wrapper{
margin-top: 100px;
width: 100vw;
overflow: hidden;
border: 1px solid red;
overflow: auto;
}
#scrollable{
width: 2000px;
background: pink;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/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://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>
<div id="wrapper">
<div id="scrollable">
<button type="button" class="btn btn-secondary" data-toggle="tooltip" title="Tooltip with some text in it maybe a lot of text" data-container="body">
Tooltip btn
</button>
</div>
</div>
祝你好运!