jQuery UI Accordion beforeActivate用法及代碼示例

jQuery UI 包含使用 HTML 、 CSS 和 jQuery 實現的 GUI 小部件、視覺效果和主題。 jQuery UI 非常適合為網頁構建 UI 接口。

jQuery UI 手風琴 beforeActivate 事件用於在激活手風琴麵板之前觸發。 Accordion beforeActivate 事件接受下麵列出的兩個值。

event: 它代表滑塊小部件的事件。
ui: 它是一個對象類型值。它包含四種類型的屬性，如下所示：
- newHeader:它代表剛剛激活的標頭。
- oldHeader: 它代表剛剛停用的標頭。
- newPanel: 它代表剛剛激活的麵板。
- oldPanel:它代表剛剛停用的麵板。

用法:

使用 beforeActivate 回調初始化手風琴。

$( ".selector" ).accordion({
     beforeActivate: function( event, ui ) {}
});

將事件偵聽器綁定到 AccordionbeforeActivate 事件。

$( ".selector" ).on( 
    "accordionbeforeActivate", 
    function( event, ui ) {} 
);

CDN 鏈接：首先，添加項目所需的 jQuery UI 腳本。

<link rel=”stylesheet” href=”//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css”>
<script src=”//code.jquery.com/jquery-1.12.4.js”></script>
<script src=”//code.jquery.com/ui/1.12.1/jquery-ui.js”></script>

例子：此示例說明了 jQuery UI Accordion 的用法激活前事件。

HTML


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title> jQuery UI Accordion beforeActivate Event </title>
     
    <link rel="stylesheet" href=
"//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css">
    <script src=
"//code.jquery.com/jquery-1.12.4.js">
    </script>
    <script src=
"//code.jquery.com/ui/1.12.1/jquery-ui.js">
    </script>
    <style>
        h1, h3 {
            text-align: center;
        }
        #GFG {
            width: 600px;
            margin: 0 auto;
        }
    </style>
</head>
<body>
    <h1 style="color:green;">
        GeeksforGeeks
    </h1>
    <h3>jQuery UI Accordion beforeActivate Event</h3>
    <div id="GFG">
        <h3>HTML</h3>
        <div>
            HTML stands for HyperText Markup Language. 
            It is used to design web pages using the 
            markup language. HTML is the combination 
            of Hypertext and Markup language. Hypertext 
            defines the link between the web pages and
            markup language defines the text document 
            within the tag that define the structure 
            of web pages.
        </div>
        <h3>CSS</h3>
        <div>
            CSS (Cascading Style Sheets) is a stylesheet 
            language used to design a webpage to make it 
            attractive. The reason for using this is to 
            simplify the process of making web pages 
            presentable. It allows you to apply styles 
            on web pages. More importantly, it enables 
            you to do this independent of the HTML that 
            makes up each web page.
        </div>
        <h3>JavaScript</h3>
        <div>
            JavaScript is the world most popular 
            lightweight, interpreted compiled programming 
            language. It is also known as scripting 
            language for web pages. It is well-known for 
            the development of web pages, many non-browser 
            environments also use it. JavaScript can be 
            used for Client-side developments as well as 
            Server-side developments.
        </div>
        <h3>Bootstrap</h3>
        <div>
            Bootstrap is a free and open-source tool 
            collection for creating responsive websites 
            and web applications. It is the most popular 
            HTML, CSS, and JavaScript framework for 
            developing responsive, mobile-first websites. 
            Nowadays, the websites are perfect for all 
            the browsers (IE, Firefox, and Chrome) and 
            for all sizes of screens (Desktop, Tablets, 
            Phablets, and Phones).
        </div>
    </div>
    <script>
        $(document).ready(function () {
            $("#GFG").accordion();
            $("#GFG").on("accordionbeforeactivate", function() {
                alert("Accordion beforeActivate Event Triggered!");
            });
        });
    </script>
</body>
</html>

輸出：

參考： https://api.jqueryui.com/accordion/#event-beforeActivate

相關用法

注：本文由純淨天空篩選整理自blalverma92大神的英文原創作品 jQuery UI Accordion beforeActivate Event。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。