| <!doctype html><html lang="en"><head><meta charset="utf-8"><meta http-equiv="CACHE-CONTROL" content="NO-CACHE"><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no"><meta http-equiv="X-UA-Compatible" content="ie=edge"><title>Using the Jewel Slider Control</title><link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"><link rel="stylesheet" href="/css/styles.css"><link rel="shortcut icon" href="/img/favicon.ico"></head><body class="page post" id="main"><header class="docs-header"><div class="container"><div class="topbar"><div class="topbar-left"><a href="/"><span class="site-title">Apache Royale</span></a></div><div class="topbar-center"></div><div class="topbar-right"><button class="topMenu-dropbtn"><i class="fa fa-bars"></i> Menu</button><ul class="topMenu"><li><a href="/features">Features</a></li><li><a href="https://apache.github.io/royale-docs/get-started">Get Started</a></li><li><a href="/download">Download</a></li><li><a href="/docs">Docs</a></li><li><a href="/blog">Blog</a></li><li><a href="https://github.com/apache/royale-asjs/wiki/Apache-Royale-Source-Code-Repositories"><i class="fa fa-github"></i> GitHub</a></li></ul></div></div><div class="post-header"><h1>Using the Jewel Slider Control</h1><div class="post-meta">by Carlos Rovira on April 12, 2018</div></div></div></header><div class="page-content"><div class="container"><article><p>In this example we'll see the basic use of the Jewel <strong>Slider</strong> control in a Royale application. It uses the new Jewel UI set that supports themes and is available in <a href="https://royale.apache.org/download/">the 0.9.4 release or later</a>.</p><pre><code class="language-mxml"><?xml version="1.0" encoding="UTF-8"?> |
| <j:Application xmlns:fx="http://ns.adobe.com/mxml/2009" |
| xmlns:j="library://ns.apache.org/royale/jewel"> |
| |
| <fx:Script> |
| <![CDATA[ |
| |
| private function clickHandler(event:MouseEvent):void |
| { |
| slider_w.value = 400; |
| slider_h.value = 200; |
| } |
| |
| private function onValueChange(event:Event):void |
| { |
| button.width = slider_w.value; |
| button.height = slider_h.value; |
| button.text = slider_w.value + "x" + slider_h.value; |
| } |
| ]]> |
| </fx:Script> |
| |
| <j:initialView> |
| <j:View> |
| <j:beads> |
| <j:VerticalLayout gap="10"/> |
| </j:beads> |
| |
| <j:Slider id="slider_w" width="250" value="250" minimum="100" maximum="500" |
| valueChange="onValueChange(event)"/> |
| |
| <j:Slider id="slider_h" width="250" value="80" minimum="40" maximum="300" |
| valueChange="onValueChange(event)"/> |
| |
| <j:Button id="button" text="Slider to 400x200" width="250" height="80" emphasis="secondary" |
| click="clickHandler(event)"/> |
| </j:View> |
| </j:initialView> |
| |
| </j:Application> |
| </code></pre><p>In this example, you can click the Jewel button to set up slider values. When you do this the <strong>ValueChangeEvent.VALUE_CHANGE</strong> will fire, calling the <strong>onValueChange</strong> event handler and setting width, height and text in the <strong>Button</strong>.</p><p>On the other hand, you can drag each <strong>slider</strong> to change width and height in the Button, and function to update value in <em>"onValueChange"</em> will be called continuously as you drag the slider controls.</p><p>You can click in the track at any place to change the value immediately to the value at that point in the track. And if you need them, you have available <em>"input"</em> and <em>"change"</em> events in Slider. The first fires each time you move the slider thumb from one position to another, and the second fires when Slider ends its change from one position to another.</p><h2>Where to go from here</h2><ul><li><a href="https://apache.github.io/royale-docs/component-sets/jewel/slider">Jewel Slider Royale Docs page</a></li><li><a href="https://apache.github.io/royale-docs/component-sets/jewel/button">Jewel Button Royale Docs page</a></li></ul><p>The result of this code snippet is the following:</p><iframe width="100%" height="450" src="/blog-examples/BE0003_Using_Jewel_Slider_Control/index.html"></iframe><p>(We're using an iframe to host the actual results of this example compilation. To see the example in a separate window click <a href="/blog-examples/BE0003_Using_Jewel_Slider_Control/index.html" target="_blank">this link</a>.)</p><p>Full project with source code can be found <a href="https://github.com/apache/royale-asjs/tree/develop/examples/blog/BE0003_Using_Jewel_Slider_Control">here</a>:</p><p><a class="btn btn-download" href="https://github.com/apache/royale-asjs/tree/develop/examples/blog/BE0003_Using_Jewel_Slider_Control"><i class="fa fa-download"></i> Project Source Code</a></p></article></div></div><footer class="footer"><div class="footer-row"><div class="footer-column"><ul class="footer-list"><li class="apacheroyale"><a href="/">Apache Royale</a></li><li><a href="/">Home</a></li><li><a href="/features">Features</a></li><li><a href="/download">Download</a></li><li><a href="/ides">IDEs and Editors</a></li><li><a href="/showcase">Showcase</a></li><li><a href="/blog">Blog</a></li><li><a href="/team">Team</a></li><li><a href="/thanks-to">Thanks To</a></li><li><a href="https://apache.org/logos/#royale"><i class="fa fa-external-link-square"></i> Logos</a></li><li><a href="https://www.apache.org/licenses/"><i class="fa fa-external-link-square"></i> Apache License v2.0</a></li></ul></div><div class="footer-column"><ul class="footer-list"><li class="documentation"><a href="/docs">Documentation</a></li><li><a href="https://apache.github.io/royale-docs/get-started">Get Started</a></li><li><a href="/docs">Docs</a></li><li><a href="/asdoc">API Reference</a></li><li><a href="https://github.com/apache/royale-asjs/wiki"><i class="fa fa-github"></i>Wiki</a></li><li><a href="https://stackoverflow.com/questions/tagged/apache-royale"><i class="fa fa-stack-overflow"></i> StackOverFlow Tag</a></li></ul><ul class="footer-list"><li class="community"><a href="/get-involved">Community</a></li><li><a href="/get-involved">Get Involved</a></li><li><a href="/mailing-lists">Mailing Lists</a></li><li><a href="/faq">FAQ</a></li></ul><ul class="footer-list"><li class="development"><a href="/source-code">Development</a></li><li><a href="https://github.com/apache/royale-asjs/wiki/Apache-Royale-Source-Code-Repositories"><i class="fa fa-github"></i> Github</a></li><li><a href="https://github.com/apache/royale-asjs/issues"><i class="fa fa-github"></i> Issues</a></li><li><a href="/source-code"><i class="fa fa-code"></i> Source Code</a></li></ul></div><div class="footer-column"><ul class="footer-list"><li class="social_t">Social</li><li><a href="https://twitter.com/apacheroyale"><i class="fa fa-twitter"></i> Twitter</a></li><li><a href="https://facebook.com/ApacheRoyaleSDK/"><i class="fa fa-facebook"></i> Facebook</a></li><li><a href="https://www.linkedin.com/groups/12118437"><i class="fa fa-linkedin"></i> LinkedIn</a></li><li><a href="/feed/index.xml"><i class="fa fa-rss"></i> RSS</a></li></ul><ul class="footer-list"><li class="apache"><a href="https://www.apache.org/">Apache</a></li><li><a href="https://www.apache.org/"><i class="fa fa-external-link-square"></i> Apache</a></li><li><a href="https://www.apache.org/foundation/contributing.html"><i class="fa fa-external-link-square"></i> Donations</a></li><li><a href="https://www.apache.org/events/current-event"><i class="fa fa-external-link-square"></i> Events</a></li><li><a href="https://www.apache.org/foundation/sponsorship.html"><i class="fa fa-external-link-square"></i> Sponsorship</a></li><li><a href="https://www.apache.org/foundation/thanks.html"><i class="fa fa-external-link-square"></i> Thanks</a></li><li><a href="https://www.apache.org/security/"><i class="fa fa-external-link-square"></i>Security</a></li></ul></div><div class="aboutusdiv"><p class="aboutus">About Us</p><p class="aboutus_p"><img class="aboutus-logo" src="/img/apache-royale-logo-footer-circle-grey.svg"><a href="/" class="aboutus_a">Apache Royale™</a> is a highly productive open source application technology for building expressive frontend applications that outputs to different formats and deploy consistently on all major browsers, desktops and devices.</p><p><img class="aboutus-apache-logo" src="/img/Apache_PoweredBy.svg"> <a href="/" class="aboutus_a">Apache Royale™</a>, <a href="https://www.apache.org" class="aboutus_a">Apache™</a> and the <a href="https://www.apache.org/foundation/press/kit/" class="aboutus_a">Apache feather logo™</a> are trademarks of The Apache Software Foundation. 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