弹出框控件类似于提示框,它在鼠标点击到元素后显示,与提示框不同的是它可以显示更多的内容。
通过向元素添加 data-toggle="popover" 来来创建弹出框。
title 属性的内容为弹出框的标题,data-content 属性显示了弹出框的文本内容:
<a href="#" data-toggle="popover" title="弹出框标题" data-content="弹出框内容">多次点我</a>
注意: 弹出框要写在 jQuery 的初始化代码里: 然后在指定的元素上调用 popover() 方法。
以下示例可以在文档的任何地方使用弹出框:
<!DOCTYPE html> <html> <head> <title>Bootstrap 示例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.staticfile.org/popper.js/1.15.0/umd/popper.min.js"></script> <script src="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>弹出框示例</h2> <a href="#" data-toggle="popover" title="弹出框标题" data-content="弹出框内容">多次点我</a> </div> <script> $(document).ready(function(){ $('[data-toggle="popover"]').popover(); }); </script> </body> </html>测试看看
默认情况下弹出框显示在元素右侧。
可以使用 data-placement 属性来设定弹出框显示的方向: top, bottom, left 或 right:
<!DOCTYPE html> <html> <head> <title>Bootstrap 示例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.staticfile.org/popper.js/1.15.0/umd/popper.min.js"></script> <script src="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>弹出框示例</h2> <br><br><br><br><br><br> <a href="#" title="Header" data-toggle="popover" data-placement="top" data-content="Content">点我</a> <a href="#" title="Header" data-toggle="popover" data-placement="bottom" data-content="Content">点我</a> <a href="#" title="Header" data-toggle="popover" data-placement="left" data-content="Content">点我</a> <a href="#" title="Header" data-toggle="popover" data-placement="right" data-content="Content">点我</a> </div> <script> $(document).ready(function(){ $('[data-toggle="popover"]').popover(); }); </script> </body> </html>测试看看
按钮中使用:
<!DOCTYPE html> <html> <head> <title>Bootstrap 示例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.staticfile.org/popper.js/1.15.0/umd/popper.min.js"></script> <script src="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>弹出框示例</h2> <br><br><br><br><br><br> <button type="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-placement="top" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus."> Popover on top </button> <button type="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-placement="right" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus."> Popover on right </button> <button type="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-placement="bottom" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus."> Popover on bottom </button> <button type="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-placement="left" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus."> Popover on left </button> </div> <script> $(document).ready(function(){ $('[data-toggle="popover"]').popover(); }); </script> </body> </html>测试看看
默认情况下,弹出框在再次点击指定元素后就会关闭,你可以使用 data-trigger="focus" 属性来设置在鼠标点击元素外部区域来关闭弹出框:
<!DOCTYPE html> <html> <head> <title>Bootstrap 示例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.staticfile.org/popper.js/1.15.0/umd/popper.min.js"></script> <script src="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>弹出框示例</h2> <br> <a href="#" title="取消弹出框" data-toggle="popover" data-trigger="focus" data-content="点击文档的其他地方关闭我">点我</a> </div> <script> $(document).ready(function(){ $('[data-toggle="popover"]').popover(); }); </script> </body> </html>测试看看
提示:如果你想实现在鼠标移动到元素上显示,移除后消失的效果,可以使用 data-trigger 属性,并设置值为 "hover":
<!DOCTYPE html> <html> <head> <title>Bootstrap 示例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.staticfile.org/popper.js/1.15.0/umd/popper.min.js"></script> <script src="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>弹出框示例</h2> <br> <a href="#" title="Header" data-toggle="popover" data-trigger="hover" data-content="一些内容">鼠标移动到我这</a> </div> <script> $(document).ready(function(){ $('[data-toggle="popover"]').popover(); }); </script> </body> </html>测试看看