Question

FXML文件：

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

<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import java.net.URL?>

<AnchorPane id="AnchorPane" fx:id="apMain" prefHeight="600" prefWidth="600" xmlns:fx="http://javafx.com/fxml/1" fx:controller="funkcje.FXMLDocumentController">
     <stylesheets>
    <URL value="@style.css" />
    </stylesheets>
    <children>
        <Button prefHeight="20" prefWidth="70" layoutX="265" layoutY="550" text="Narysuj" onAction="#handleButtonAction" fx:id="button" />
        <Label layoutX="30" layoutY="500" minHeight="16" minWidth="69" text="Podaj A:" fx:id="labelA" />
        <TextField layoutX="105" layoutY="503" prefHeight="20" prefWidth="90" fx:id="textfieldA" />
        <Label layoutX="200" layoutY="500" minHeight="16" minWidth="69" text="Podaj B:" fx:id="labelB" />
        <TextField layoutX="275" layoutY="503" prefHeight="20" prefWidth="90" fx:id="textfieldB" />
        <Label layoutX="370" layoutY="500" minHeight="16" minWidth="69" text="Podaj miare:" fx:id="labelC" />
        <TextField layoutX="483" layoutY="503" prefHeight="20" prefWidth="90" fx:id="textfieldC" />
    </children>
</AnchorPane>

FXML控制器：

    package funkcje;

    import java.net.URL;
    import java.util.ResourceBundle;
    import javafx.event.ActionEvent;
    import javafx.fxml.FXML;
    import javafx.fxml.Initializable;
    import javafx.scene.Group;
    import javafx.scene.control.Label;
    import javafx.scene.layout.AnchorPane;
    import javafx.scene.layout.Pane;
    import javafx.scene.paint.Color;
    import javafx.scene.shape.Line;
    import javafx.scene.shape.Rectangle;

    /**
     *
     * 
     */
    public class FXMLDocumentController implements Initializable {

        @FXML
        private Label label;
        private AnchorPane apMain;

        @FXML
        private void handleButtonAction(ActionEvent event) {
            System.out.println("You clicked me!");
            label.setText("Hello World!");
        }

        @Override
        public void initialize(URL url, ResourceBundle rb) {
            // TODO
            Group group = new Group();
            Rectangle r2 = new Rectangle(250, 25, 100, 140);
            r2.setStroke(Color.BLACK);
            r2.setFill(null);
            r2.setStrokeWidth(3);
            r2.setArcWidth(25);
            r2.setArcHeight(25);
            group.getChildren().add(r2);

            apMain.getChildren().add(group);

        }    

    }

main app:

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package funkcje;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Group;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Line;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

/**
 *
 *
 */
public class Funkcje extends Application {

    @Override
    public void start(Stage stage) throws Exception {
        Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));
        Scene scene = new Scene(root);
        stage.setResizable(false);
        stage.setTitle("Funkcje");
        stage.setScene(scene);
        stage.show();
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }

}

在这里。帮我。有一些文字，我无法发布，因为我有太多的代码和更少的文字。这里是。帮我。有一些文字，我无法发布，因为我有太多的代码和更少的文字。这里是。帮我。有一些文字，我无法发布，因为我有太多的代码和更少的文字。这里是。帮我。有一些文字，我无法发布，因为我有太多的代码和更少的文字。

Answer 1

在FXMLDocumentController.java文件中更改：

private AnchorPane apMain;

要：

@FXML private AnchorPane apMain;

如何在JavaFX中向场景添加组？

1 个答案: