左&在 Bootstrap 4 中右对齐模态页脚按钮 [英] Left & right align modal footer buttons in Bootstrap 4

查看：18
本文介绍了左&在 Bootstrap 4 中右对齐模态页脚按钮的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

Bootstrap 4 使用 flex-box 作为它的模态页脚.如果我想要两个按钮，一个在左边，一个在右边，我该如何让它正常工作?

下面的代码尝试将 div.row 与 col-sm-6 一起使用，但不起作用.

<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"></脚本><script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js"></script><script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script><link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet"/><!-- 按钮触发模态--><button type="button" class="btn btn-primary" data-toggle="modal" data-target="#myModal">启动演示模式<!-- 模态--><div class="modalfade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true"><div class="modal-dialog" role="document"><div class="modal-content"><div class="modal-header"><h5 class="modal-title" id="exampleModalLabel">模态标题</h5><button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span>

<div class="modal-body">...

<div class="modal-footer"><div class="row"><div class="col-sm-6 text-left"><button type="button" class="btn btn-primary">保存更改</button>

<div class="col-sm-6 text-right"><button type="button" class="btn btn-secondary" data-dismiss="modal">关闭</button>

解决方案

既然 modal-footer 在 Bootstrap 4 中是display:flex"，那么使用自动边距将是最简单的.使用左侧按钮上的 mr-auto.

<button type="button" class="btn btn-primary mr-auto">保存更改</button><button type="button" class="btn btn-secondary" data-dismiss="modal">关闭</button>

演示

另见:左对齐和右对齐内Bootstrap 中的 div

后续评论如果我需要右侧的按钮占据左侧的所有空间怎么办?"- 使用 btn-block 类:

<button type="button" class="btn btn-primary text-nowrap">保存更改</button><button type="button" class="btn btn-secondary btn-block ml-1" data-dismiss="modal">关闭</button>

Bootstrap 4 uses flex-box for it's modal footers. If I want two buttons, one on the left and one on the right, how do I get it to work properly?

The code below tries to use a div.row with col-sm-6 but doesn't work.

<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet"/>

<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#myModal">
  Launch demo modal
</button>

<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel">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">
        ...
      </div>
      <div class="modal-footer">
      <div class="row">
        <div class="col-sm-6 text-left">
        <button type="button" class="btn btn-primary">Save changes</button>
        </div>
        <div class="col-sm-6 text-right">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        </div>
      </div>
      </div>
    </div>
  </div>
</div>

解决方案

Now that the modal-footer is "display:flex" in Bootstrap 4, it would be easiest to use the auto-margins. Use mr-auto on the left button.

<div class="modal-footer">
     <button type="button" class="btn btn-primary mr-auto">Save changes</button>
     <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
</div>

Demo

Also see: Left align and right align within div in Bootstrap

Follow-up to comment "What if I need the button on the right to occupy all the space left?" - Use the btn-block class:

<div class="modal-footer">
     <button type="button" class="btn btn-primary text-nowrap">Save changes</button>
     <button type="button" class="btn btn-secondary btn-block ml-1" data-dismiss="modal">Close</button>
</div>

这篇关于左&amp;在 Bootstrap 4 中右对齐模态页脚按钮的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

查看全文
相关文章
其他开发最新文章
热门教程
热门工具
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆