<!DOCTYPE html><html><head>
<style type="text/css">body { font-family:'Calibri'; font-size:13px}</style>
</head>
<body><div><big>Here's an example as requested by Nir:</big></div><div><big><br></big></div><div><span style="color:#7f0055;font-weight:bold;">public</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">class</span><span style="color:#000000;"> FxTimeLineTest </span><span style="color:#7f0055;font-weight:bold;">extends</span><span style="color:#000000;"> Application</span></div><div><div style="background-color:#ffffff;padding:0px 2px 0px 2px;"><div style="color:#000000;background-color:#ffffff;font-family:"Consolas";font-size:10pt;white-space:pre;"><p style="margin:0;"><span style="color:#000000;">{</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">private</span><span style="color:#000000;"> BorderPane </span><span style="color:#0000c0;">bp</span><span style="color:#000000;"> = </span><span style="color:#7f0055;font-weight:bold;">new</span><span style="color:#000000;"> BorderPane( </span><span style="color:#7f0055;font-weight:bold;">new</span><span style="color:#000000;"> Label(</span><span style="color:#2a00ff;">"Loading"</span><span style="color:#000000;">) );</span></p><p style="margin:0;"><br></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">public</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">static</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">void</span><span style="color:#000000;"> main( String[] </span><span style="color:#6a3e3e;">args</span><span style="color:#000000;"> ) {</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#000000;font-style:italic;">launch</span><span style="color:#000000;">( FxTimeLineTest.</span><span style="color:#7f0055;font-weight:bold;">class</span><span style="color:#000000;">, </span><span style="color:#6a3e3e;">args</span><span style="color:#000000;"> );</span></p><p style="margin:0;"><span style="color:#000000;"> }</span></p><p style="margin:0;"><br></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#646464;">@Override</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">public</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">void</span><span style="color:#000000;"> start( Stage </span><span style="color:#6a3e3e;">primaryStage</span><span style="color:#000000;"> ) </span><span style="color:#7f0055;font-weight:bold;">throws</span><span style="color:#000000;"> Exception {</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">new</span><span style="color:#000000;"> Thread( </span><span style="color:#7f0055;font-weight:bold;">new</span><span style="color:#000000;"> LoadScene() ).start();</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#6a3e3e;">primaryStage</span><span style="color:#000000;">.setScene( </span><span style="color:#7f0055;font-weight:bold;">new</span><span style="color:#000000;"> Scene( </span><span style="color:#0000c0;">bp</span><span style="color:#000000;">, 300, 200 ) );</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#6a3e3e;">primaryStage</span><span style="color:#000000;">.setTitle( </span><span style="color:#2a00ff;">"Memory Usage"</span><span style="color:#000000;"> );</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#6a3e3e;">primaryStage</span><span style="color:#000000;">.show();</span></p><p style="margin:0;"><span style="color:#000000;"> }</span></p><p style="margin:0;"><br></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">private</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">class</span><span style="color:#000000;"> LoadScene </span><span style="color:#7f0055;font-weight:bold;">extends</span><span style="color:#000000;"> Task<Parent> {</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#646464;">@Override</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">protected</span><span style="color:#000000;"> Parent call() </span><span style="color:#7f0055;font-weight:bold;">throws</span><span style="color:#000000;"> Exception {</span></p><p style="margin:0;"><span style="color:#000000;"> Parent </span><span style="color:#6a3e3e;">p</span><span style="color:#000000;"> = FXMLLoader.</span><span style="color:#000000;font-style:italic;">load</span><span style="color:#000000;">( getClass().getResource(</span><span style="color:#2a00ff;">"TestView.fxml"</span><span style="color:#000000;">) );</span></p><p style="margin:0;"><span style="color:#000000;"> Thread.</span><span style="color:#000000;font-style:italic;">sleep</span><span style="color:#000000;">( 1000 );</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">return</span><span style="color:#000000;"> </span><span style="color:#6a3e3e;">p</span><span style="color:#000000;">;</span></p><p style="margin:0;"><span style="color:#000000;"> }</span></p><p style="margin:0;"><br></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#646464;">@</span><span style="color:#646464;">Override</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">protected</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">void</span><span style="color:#000000;"> succeeded() {</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#0000c0;">bp</span><span style="color:#000000;">.setCenter( getValue() );</span></p><p style="margin:0;"><span style="color:#000000;"> }</span></p><p style="margin:0;"><br></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#646464;">@</span><span style="color:#646464;">Override</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">protected</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">void</span><span style="color:#000000;"> failed() {</span></p><p style="margin:0;"><span style="color:#000000;"> getException().printStackTrace();</span></p><p style="margin:0;"><span style="color:#000000;"> }</span></p><p style="margin:0;"><span style="color:#000000;"> }</span></p><p style="margin:0;"><span style="color:#000000;">}<br><br></span></p></div></div></div><div><div style="background-color:#ffffff;padding:0px 2px 0px 2px;"><div style="color:#000000;background-color:#ffffff;font-family:"Consolas";font-size:10pt;white-space:pre;"><p style="margin:0;">------------------------------------------------------------------------------------------------------</p></div></div></div><div><br></div><div><div style="background-color:#ffffff;padding:0px 2px 0px 2px;"><div style="color:#000000;background-color:#ffffff;font-family:"Consolas";font-size:10pt;white-space:pre;"><p style="margin:0;"><span style="color:#7f0055;font-weight:bold;">public</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">class</span><span style="color:#000000;"> TestView</span></p><p style="margin:0;"><span style="color:#000000;">{</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#646464;">@</span><span style="color:#646464;">FXML</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">private</span><span style="color:#000000;"> Label </span><span style="color:#0000c0;">memory</span><span style="color:#000000;">;</span></p><p style="margin:0;"><br></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">private</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">static</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">final</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">double</span><span style="color:#000000;"> </span><span style="color:#0000c0;font-style:italic;font-weight:bold;">MEGABYTE</span><span style="color:#000000;"> = 1024 * 1024;</span></p><p style="margin:0;"><br></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#646464;">@</span><span style="color:#646464;">FXML</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">private</span><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">void</span><span style="color:#000000;"> initialize()</span></p><p style="margin:0;"><span style="color:#000000;"> {</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">var</span><span style="color:#000000;"> </span><span style="color:#6a3e3e;">updater</span><span style="color:#000000;"> = </span><span style="color:#7f0055;font-weight:bold;">new</span><span style="color:#000000;"> Timeline</span></p><p style="margin:0;"><span style="color:#000000;"> (</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">new</span><span style="color:#000000;"> KeyFrame( Duration.</span><span style="color:#000000;font-style:italic;">seconds</span><span style="color:#000000;">(2.5), </span><span style="color:#6a3e3e;">event</span><span style="color:#000000;"> -></span></p><p style="margin:0;"><span style="color:#000000;"> {</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">var</span><span style="color:#000000;"> </span><span style="color:#6a3e3e;">runtime</span><span style="color:#000000;"> = Runtime.</span><span style="color:#000000;font-style:italic;">getRuntime</span><span style="color:#000000;">();</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">double</span><span style="color:#000000;"> </span><span style="color:#6a3e3e;">maxMemory</span><span style="color:#000000;"> = </span><span style="color:#6a3e3e;">runtime</span><span style="color:#000000;">.maxMemory() / </span><span style="color:#0000c0;font-style:italic;font-weight:bold;">MEGABYTE</span><span style="color:#000000;">;</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#7f0055;font-weight:bold;">double</span><span style="color:#000000;"> </span><span style="color:#6a3e3e;">usedMemory</span><span style="color:#000000;"> = (</span><span style="color:#6a3e3e;">runtime</span><span style="color:#000000;">.totalMemory() - </span><span style="color:#6a3e3e;">runtime</span><span style="color:#000000;">.freeMemory()) / </span><span style="color:#0000c0;font-style:italic;font-weight:bold;">MEGABYTE</span><span style="color:#000000;">;</span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#0000c0;">memory</span><span style="color:#000000;">.setText( (</span><span style="color:#7f0055;font-weight:bold;">int</span><span style="color:#000000;">) </span><span style="color:#6a3e3e;">usedMemory</span><span style="color:#000000;"> + </span><span style="color:#2a00ff;">" MB / "</span><span style="color:#000000;"> + (</span><span style="color:#7f0055;font-weight:bold;">int</span><span style="color:#000000;">) </span><span style="color:#6a3e3e;">maxMemory</span><span style="color:#000000;"> +</span><span style="color:#2a00ff;">" MB"</span><span style="color:#000000;"> );</span></p><p style="margin:0;"><span style="color:#000000;"> })</span></p><p style="margin:0;"><span style="color:#000000;"> );</span></p><p style="margin:0;"><br></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#6a3e3e;">updater</span><span style="color:#000000;">.setCycleCount(Animation.</span><span style="color:#0000c0;font-style:italic;font-weight:bold;">INDEFINITE</span><span style="color:#000000;">);<br> // This FXML is being loaded on a background thread<br></span></p><p style="margin:0;"><span style="color:#000000;"> </span><span style="color:#6a3e3e;">updater</span><span style="color:#000000;">.play();</span></p><p style="margin:0;"><span style="color:#000000;"> }</span></p><p style="margin:0;"><span style="color:#000000;">}<br><br></span></p></div></div></div><div><div style="background-color:#ffffff;padding:0px 2px 0px 2px;"><div style="color:#000000;background-color:#ffffff;font-family:"Consolas";font-size:10pt;white-space:pre;"><p style="margin:0;">------------------------------------------------------------------------------------------------------</p></div></div></div><div><br></div><div>
<span style="color:#000000;"><big>TestView.fxml</big></span>
</div><div><br></div><div><div style="background-color:#ffffff;padding:0px 2px 0px 2px;"><div style="color:#000000;background-color:#ffffff;font-family:"Consolas";font-size:10pt;white-space:pre;"><p style="margin:0;"><div style="background-color:#ffffff;padding:0px 2px 0px 2px;"><div style="color:#000000;background-color:#ffffff;font-family:"Consolas";font-size:10pt;white-space:pre;"><p style="margin:0;"><?xml version="1.0" encoding="UTF-8"?></p><p style="margin:0;"><br></p><p style="margin:0;"><?import javafx.scene.control.Label?></p><p style="margin:0;"><?import javafx.scene.layout.StackPane?></p><p style="margin:0;"><br></p><p style="margin:0;"><StackPane xmlns:fx="http://javafx.com/fxml/1" fx:controller="TestView"></p><p style="margin:0;"> <children></p><p style="margin:0;"> <Label fx:id="memory" text="Current / Max MB" ></p><p style="margin:0;"> <properties hashCode="12345" /></p><p style="margin:0;"> </Label></p><p style="margin:0;"> </children></p><p style="margin:0;"></StackPane></p></div></div></p></div></div></div><div><br></div><div><br></div><div><br></div><div>On Sat, 20 Jan 2024 17:08:41 +0200, Nir Lisker <nlisker@gmail.com> wrote:<br></div><br><blockquote style="margin: 0 0 0.80ex; border-left: #0000FF 2px solid; padding-left: 1ex"><div dir="ltr">Hi Jurgen,<div><br></div><div>What I'm confused about the most is what it is you are actually trying to do that necessitates the use of animations outside of the FX thread. You said that you need to initialize controls on another thread, and that you are using Task (both of which are fine), but how does playing animations relate? Playing an animation is something that is done explicitly, usually in order to manipulate data. Can you give a real use case, like a minimized version of what you're doing?</div><div><br></div><div>- Nir</div></div></blockquote></body></html>