JavaFX启动屏幕后按钮onClick错误
我正在用JavaFX制作一个桌面应用程序,我制作了一个仅出现5秒的启动屏幕,5秒后它会显示一个带有按钮的新阶段,当我单击按钮时,它会发送一个错误:JavaFX启动屏幕后按钮onClick错误,java,javafx,fxml,Java,Javafx,Fxml,我正在用JavaFX制作一个桌面应用程序,我制作了一个仅出现5秒的启动屏幕,5秒后它会显示一个带有按钮的新阶段,当我单击按钮时,它会发送一个错误: Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: argument type mismatch at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: argument type mismatch
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$MethodHandler.invoke(FXMLLoader.java:1765)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1653)
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.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.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$ClickGenerator.postProcess(Scene.java:3471)
at javafx.scene.Scene$ClickGenerator.access$8100(Scene.java:3399)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3767)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3486)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2495)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:350)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:275)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$350(GlassViewEventHandler.java:385)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$$Lambda$158/361466793.get(Unknown Source)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:404)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:384)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:927)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$145(WinApplication.java:101)
at com.sun.glass.ui.win.WinApplication$$Lambda$36/1963387170.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)
下面是JavaFX类
RootForm.java(启动屏幕)
}
RootForm.fxml(启动屏幕fxml)
以下是截图:
在我点击第二个屏幕上的按钮后,我得到了这个错误。
有人能帮我处理这个问题吗?问题在于您在fxml中使用的
onMouseClicked
。它发送一个MouseEvent
,而不是ActionEvent
您需要在fxml中使用onAction
,以设置对按钮的fire(click)事件执行的操作
<Button fx:id="btnMain" onAction="#btnMainActEvent" layoutX="107.0" layoutY="65.0" mnemonicParsing="false" prefHeight="112.0" prefWidth="101.0" text="Button" textFill="RED" />
是否确定按钮单击处理程序中的ActionEvent?使用javafx.scene.input.MouseEvent试试(您不能将MouseEvent强制转换为ActionEvent)
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.net.*?>
<?import java.util.*?>
<?import javafx.scene.co
ntrol.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.paint.*?>
<?import javafx.scene.text.*?>
<AnchorPane id="Splash" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2">
<children>
<Label layoutX="57.0" layoutY="247.0" prefHeight="21.0" prefWidth="202.0" text="Software is loading...">
<font>
<Font size="15.0" />
</font>
</Label>
</children>
<stylesheets>
<URL value="@style.css" />
</stylesheets>
</AnchorPane>
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.net.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane id="AnchorPane" prefHeight="400.0" prefWidth="600.0" styleClass="mainFxmlClass" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2" fx:controller="Forms.ErrorController">
<children>
<Button fx:id="btnMain" onMouseClicked="#btnMainActEvent" layoutX="107.0" layoutY="65.0" mnemonicParsing="false" prefHeight="112.0" prefWidth="101.0" text="Button" textFill="RED" />
</children>
<stylesheets>
<URL value="@style.css" />
</stylesheets>
</AnchorPane>
package Forms;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
/**
* FXML Controller class
*
* @author User
*/
public class ErrorController implements Initializable {
@FXML
private Button btnMain;
public void btnMainActEvent(ActionEvent event) throws Exception{
System.out.println("U Shtyp!");
}
/**
* Initializes the controller class.
*/
@Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
}
<Button fx:id="btnMain" onAction="#btnMainActEvent" layoutX="107.0" layoutY="65.0" mnemonicParsing="false" prefHeight="112.0" prefWidth="101.0" text="Button" textFill="RED" />