AnchorPane getWidth javafx

Question

我正在尝试获取锚定窗格的宽度以进行超越，但无法正常工作

我用这个：

    TranslateTransition content =new TranslateTransition(new Duration(350), xd);
    TranslateTransition closeContent=new TranslateTransition(new Duration(350), xd);
    content.setToX(menuBar.getWidth());

但是我的转换无法正常工作

如果我愿意

  

content.setToX（150）;

工作

有什么方法可以获取anchorPane的宽度吗？

我的fxml：

<?xml version="1.0" encoding="UTF-8"?>

<?import com.jfoenix.controls.JFXHamburger?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.StackPane?>
<?import javafx.scene.layout.VBox?>

<AnchorPane id="AnchorPane" fx:id="menu" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="controllers.Controller2">
   <children>
      <HBox alignment="CENTER_LEFT" prefHeight="50.0" prefWidth="600.0" style="-fx-background-color: #0080ff;" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
         <children>
            <JFXHamburger fx:id="hamburger" />
         </children>
         <padding>
            <Insets left="10.0" />
         </padding>
      </HBox>
      <AnchorPane layoutY="50.0" prefHeight="350.0" prefWidth="600.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="50.0">
         <children>
            <StackPane fx:id="stackConsole" layoutY="25.0" prefHeight="325.0" prefWidth="600.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
               <children>
                  <AnchorPane prefHeight="200.0" prefWidth="200.0" fx:id="xd">
                     <children>
                        <Button mnemonicParsing="false" text="Button" AnchorPane.leftAnchor="30.0" AnchorPane.topAnchor="50.0" />
                     </children>
                  </AnchorPane>
               </children>
            </StackPane>
         </children>
      </AnchorPane>
      <VBox prefHeight="400.0" prefWidth="100.0" style="-fx-background-color: #c544;" visible="false" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="10.0" AnchorPane.topAnchor="0.0">
         <children>
          <Button mnemonicParsing="false" text="1" />
          <Button mnemonicParsing="false" text="2" />
          <Button mnemonicParsing="false" text="3" />   
         </children>
      </VBox>
      <AnchorPane fx:id="menuBar" layoutY="50.0" prefHeight="350.0" prefWidth="150.0" style="-fx-background-color: #eee;" translateX="-150.0" AnchorPane.bottomAnchor="0.0" AnchorPane.topAnchor="50.0" />
   </children>
</AnchorPane>