Question

我把网格设置得很好。但是如何在每个单元格中放置事件处理程序？像鼠标双击并右键单击。有人可以举个例子吗？谢谢！

Answer 1

您没有完全指定您想要的内容，但我希望这些示例可以帮助您

第一个例子（我为所有节点添加相同的事件）

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package stackover;

import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.GridPane;

/**
 *
 * @author Ala_Eddine
 */
public class FXMLDocumentController implements Initializable {

    @FXML
    private Label label;
    @FXML
    private GridPane gridPane;

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

    @Override
    public void initialize(URL url, ResourceBundle rb) {

        addGridEvent();

    }

    private void addGridEvent() {
        gridPane.getChildren().forEach(item -> {
            item.setOnMouseClicked(new EventHandler<MouseEvent>() {
                @Override
                public void handle(MouseEvent event) {
                    if (event.getClickCount() == 2) {
                        System.out.println("doubleClick");
                    }
                    if (event.isPrimaryButtonDown()) {
                        System.out.println("PrimaryKey event");
                    }

                }
            });

        });
    }

**}

第二个例子**

private void addGridEvent() {

        Button button = new Button("hi");
        //You can use OnAction 
        button.addEventHandler(EventType.ROOT, (event) -> {
            if (event.getEventType() == ActionEvent.ACTION) {
                System.out.println("ActionEvent");
            }
        });
        gridPane.getChildren().add(button);

GridPane单元格上的Javafx事件处理程序

1 个答案: