我的布局是: MVE
我无法与其他班级的控制员互动(是的,我知道有几个关于此问题的线索 - 但我仍然没有解决错误)。
所以,基本上我有一个StackPane" root"其中包括两个AnchorPane:" vertMenu"和"内容"。 "根" StackPane嵌套在VBox中以进行布局。 " vertMenu"将包含不同的按钮以将内容(从fxml文件)加载到内容窗格 - 未在此MVE中实现。
我想按" menuButton"在类RootController中禁用" vertMenu"从VertMenuController类到内容窗格上的UI,它来自ContentController类。
我的代码:
package application;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.stage.Stage;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
public class Main extends Application {
private Stage stage;
@Override
public void start(Stage primaryStage) {
try {
this.stage = primaryStage;
FXMLLoader loader = new FXMLLoader(getClass().getResource("Root.fxml"));
Parent myPane = loader.load();
Scene scene = new Scene(myPane);
primaryStage.setScene(scene);
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
根控制器类:
package application;
import java.io.IOException;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.control.Button;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.util.Duration;
public class RootController {
@FXML private StackPane root;
@FXML private Button menuButton;
@FXML private Button bb;
VertMenuController vertMenuC;
ContentController contentC;
@FXML private void initialize() {
}
@FXML private void menuButtonAction() throws IOException {
FXMLLoader loader = new FXMLLoader(getClass().getResource("VertMenuView.fxml"));
Parent root = loader.load();
vertMenuC = loader.getController();
vertMenuC.disableMenu();
}
}
Root View:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?>
<VBox prefHeight="450.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.RootController">
<children>
<StackPane fx:id="root" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" style="-fx-background-color: rgb(222,222,222);">
<children>
<fx:include source="ContentView.fxml" />
<fx:include source="VertMenuView.fxml" />
</children>
</StackPane>
<Button fx:id="menuButton" mnemonicParsing="false" onAction="#menuButtonAction" prefHeight="48.0" prefWidth="157.0" text="Button" />
<Button fx:id="bb" mnemonicParsing="false" prefHeight="25.0" prefWidth="154.0" text="Button" />
</children>
</VBox>
VertMenuController类
package application;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.VBox;
public class VertMenuController {
@FXML private AnchorPane vertMenu;
@FXML private Button b1;
@FXML private Button b2;
@FXML private VBox vbo;
public void disableMenu() {
vertMenu.setDisable(true);
}
public void enableMenu() {
vertMenu.setDisable(false);
}
public AnchorPane getVertMenu() {
return vertMenu;
}
public VBox getBox() {
return vbo;
}
}
VertMenuView
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane fx:id="vertMenu" prefHeight="400.0" prefWidth="150.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.VertMenuController">
<children>
<VBox fx:id="vbo" prefHeight="400.0" prefWidth="150.0">
<children>
<Button fx:id="b1" mnemonicParsing="false" prefHeight="59.0" prefWidth="148.0" text="B1" />
<Button fx:id="b2" layoutX="10.0" layoutY="10.0" mnemonicParsing="false" prefHeight="59.0" prefWidth="148.0" text="B2" />
</children>
</VBox>
</children>
</AnchorPane>
ContentController类
package application;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.AnchorPane;
public class ContentController {
@FXML private AnchorPane content;
@FXML private Button b3;
@FXML private Label ausgabe;
@FXML private void b3Action() {
ausgabe.setText("b2 pressed");
}
public void setAusgabe() {
this.ausgabe.setText("Hello World");
}
}
ContentView
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane fx:id="content" maxWidth="600.0" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.ContentController">
<children>
<VBox prefHeight="262.0" prefWidth="600.0">
<children>
<Button fx:id="b3" mnemonicParsing="false" onAction="#b3Action" prefHeight="59.0" prefWidth="600.0" text="Button" />
<Label fx:id="ausgabe" prefHeight="113.0" prefWidth="610.0" text="Label" />
</children>
</VBox>
</children>
</AnchorPane>
我没有任何例外,所以我认为我正确地引用了&#34; verticalMenuController&#34;在根控制器类中。但不幸的是,我无法禁用AnchorPane&#34; vertMenu&#34;。
到目前为止非常感谢你。
答案 0 :(得分:1)
使用
加载FXML文件时FXMLLoader loader = new FXMLLoader(getClass().getResource("VertMenuView.fxml"));
Parent root = loader.load();
vertMenuC = loader.getController();
vertMenuC.disableMenu();
FXMLLoader
创建VertMenuView.fxml
中定义的UI的新实例以及与该UI关联的新控制器实例。您将UI的根分配给局部变量root
。当您致电vertMenuC.disableMenu
时,您将禁用FXMLLoader
创建的新UI实例中的菜单。但是,该UI与<fx:include>
加载和显示的UI不同,因此您看不到任何效果。
相反,您需要引用与<fx:include>
元素加载的UI关联的控制器。您可以通过injecting the "Nested Controller"将其执行到主控制器中。
首先,将fx:id
添加到fx:include
:
<fx:include fx:id="vertMenu" source="VertMenuView.fxml" />
然后将此注入您的RootController
。规则是控制器的字段名称为fx:id
,附加了文本"Controller"
:
public class RootController {
@FXML private StackPane root;
@FXML private Button menuButton;
@FXML private Button bb;
@FXML private VertMenuController vertMenuController;
@FXML private void initialize() {
}
// ...
}
现在你可以直接在注入的控制器上调用disableMenu
:
@FXML private void menuButtonAction() {
vertMenuController.disableMenu();
}
您可能也需要对ContentController
执行相同操作。