[英]Scene Builder 8.0 & Intelli. From one scene to another scene
如何在Scene Builder中使用按鈕/菜單項將兩個場景相互連接？
我已經完成了一個新的測試項目，並嘗試了Hips向我展示的內容，但出現了一些錯誤。 臀部並不是完全這么做的，這就是為什么我得到錯誤而不是他的原因:-)
主班。
package sample;
public class Main extends Application {
Stage window;
Scene mainScene, eventScene;
BorderPane mainLayout;
StackPane eventLayout;
@Override
public void start(Stage primaryStage) throws Exception {
window = primaryStage;
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("main.fxml"));
mainLayout = loader.load();
MainController mainController = loader.getController();
loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("event.fxml"));
eventLayout = loader.load();
EventController eventController = loader.getController();
mainScene = new Scene(mainLayout);
eventScene = new Scene(eventLayout);
window.setScene(mainScene);
window.setTitle("Test Project");
window.show();
}
public static void main(String[] args) {
launch(args);
}
public void setScene(Scene scene) {
window.setScene(scene);
}
}
MainController。
package sample;
public class MainController {
private Scene eventScene;
private Main main;
public void setMain(Main main){
this.main = main;
}
public void seteventScene(Scene eventScene) {
this.eventScene = eventScene;
}
@FXML
public void switchScene() {
main.setScene(eventScene);
}
}
main.FXML
<?xml version="1.0" encoding="UTF-8"?>
<BorderPane fx:id="mainLayout" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="550.0" prefWidth="400.0" xmlns="http://javafx.com/javafx/8.0.40" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.MainController">
<top>
<VBox fx:id="vbox" BorderPane.alignment="CENTER">
<children>
<MenuBar fx:id="menuBar">
<menus>
<Menu fx:id="fileMenu" mnemonicParsing="false" text="File">
<items>
<MenuItem fx:id="newItem" mnemonicParsing="false" onAction="#switchScene" text="New..." />
<MenuItem fx:id="openItem" mnemonicParsing="false" text="Open..." />
<MenuItem fx:id="saveItem" mnemonicParsing="false" text="Save..." />
<SeparatorMenuItem mnemonicParsing="false" />
<MenuItem fx:id="exitItem" mnemonicParsing="false" text="Exit" />
</items>
</Menu>
<Menu fx:id="editMenu" mnemonicParsing="false" text="Edit">
<items>
<MenuItem mnemonicParsing="false" text="Delete" />
</items>
</Menu>
<Menu fx:id="helpMenu" mnemonicParsing="false" text="Help">
<items>
<MenuItem mnemonicParsing="false" text="About" />
</items>
</Menu>
</menus>
</MenuBar>
</children>
</VBox>
</top>
</BorderPane>
EventController。
package sample;
public class EventController {
private Scene mainScene;
private Main main;
public void setMain(Main main) {
this.main = main;
}
public void setmainScene(Scene mainScene) {
this.mainScene = mainScene;
}
@FXML
public void goBack() {
main.setScene(mainScene);
}
}
event.FXML。
<?xml version="1.0" encoding="UTF-8"?>
<StackPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="550.0" prefWidth="400.0" xmlns="http://javafx.com/javafx/8.0.40" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.EventController" />
當我單擊“新建...”菜單項時，這是我收到的錯誤。
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1774)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.control.MenuItem.fire(MenuItem.java:462)
at com.sun.javafx.scene.control.skin.ContextMenuContent$MenuItemContainer.doSelect(ContextMenuContent.java:1405)
at com.sun.javafx.scene.control.skin.ContextMenuContent$MenuItemContainer.lambda$createChildren$343(ContextMenuContent.java:1358)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:352)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:275)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$355(GlassViewEventHandler.java:388)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:387)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$149(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl. java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl. java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1771)
... 43 more
Caused by: java.lang.NullPointerException
at sample.MainController.switchScene(MainController.java:21)
... 53 more
如果您有任何與IntelliJ有關的特定問題，我將認為這是如何實現這樣的最小示例（在IntelliJ中；）。
腳步：
onAction方法用於切換場景。 Main.java
package sample;
import javafx.application.*;
import javafx.fxml.FXMLLoader;
import javafx.stage.*;
import javafx.scene.*;
import javafx.scene.layout.*;
import javafx.scene.control.*;
import java.io.IOException;
public class Main extends Application {
// Primary Stage
Stage window;
// Two scenes
Scene scene1, scene2;
// The panes are associated with the respective .fxml files
private Pane pane1;
private Pane pane2;
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
try {
// Set the window as primary stage
window = primaryStage;
// Load the fxml files and their controllers
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("scene1.fxml"));
pane1 = loader.load();
Scene1Controller controller1 = loader.getController();
loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("scene2.fxml"));
pane2 = loader.load();
Scene2Controller controller2 = loader.getController();
// The scenes are based on what has been loaded from the .fxml files
Scene scene1 = new Scene(pane1);
Scene scene2 = new Scene(pane2);
// Pass reference the each scenes controller
controller1.setScene2(scene2);
controller1.setMain(this);
controller2.setScene1(scene1);
controller2.setMain(this);
//Display scene 1 at first
window.setScene(scene1);
window.setTitle("Scene!");
window.show();
} catch (IOException e) {
e.printStackTrace();
}
}
// used by the controllers to switch the scenes
public void setScene(Scene scene){
window.setScene(scene);
}
}
Scene1Controller.java
package sample;
import javafx.scene.Scene;
import javafx.stage.Window;
public class Scene1Controller {
private Scene scene2;
private Main main;
public void setMain(Main main){
this.main = main;
}
public void setScene2(Scene scene2){
this.scene2 = scene2;
}
// this method is called by clicking the button
@FXML
public void switchScene(){main.setScene(scene2);}
}
Scene2Controller.java
package sample;
import javafx.scene.Scene;
import javafx.stage.Window;
public class Scene2Controller {
private Scene scene1;
private Main main;
public void setMain(Main main){this.main = main;}
public void setScene1(Scene scene1){this.scene1 = scene1;}
// this method is called by clicking the button
@FXML
public void goBack(){main.setScene(scene1);}
}
scene1.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<Pane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8.0.40" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Scene1Controller">
<children>
<Button layoutX="274.0" layoutY="188.0" mnemonicParsing="false" onAction="#switchScene" text="Go to scene 2!" />
</children>
</Pane>
scene2.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<Pane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8.0.40" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Scene2Controller">
<children>
<Button layoutX="194.0" layoutY="175.0" mnemonicParsing="false" onAction="#goBack" text="Go back!" />
</children>
</Pane>
使用Scene Builder 8.0在JavaFX中使用setCenter（）方法獲取空指針異常
[英]Getting Null Pointer Exception with setCenter() method in JavaFX with Scene Builder 8.0
使用和更新Canvas節點的JavaFX 8.0 Scene Builder 2.0
[英]JavaFX 8.0 Scene Builder 2.0 using and updating a Canvas Node
我可以在另一個場景中設置一個場景中TextField的值，同時顯示兩個場景嗎？
[英]Can I set the value of a TextField in one scene from another scene, while both scenes are showing?
聲明:本站的技術帖子網頁，遵循CC BY-SA 4.0協議，如果您需要轉載，請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.