Question

我的视图包含一堆扩展Tile的{{1}}个对象和一个带菜单项的菜单栏。我试图用箭头键控制瓷砖发生的事情，但我无法触发事件。

我无法在视图的场景中添加事件处理程序，因为它在初始化时没有场景。

Stackpane

Answer 1

给我一个镜头，我添加了这一行view.setOnMouseClicked(event -> view.requestFocus());

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class Main extends Application {

    @Override
    public void start(Stage stage) {
        StackPane view = new StackPane();
        view.setPrefSize(200,200);
        view.setOnMouseClicked(event -> view.requestFocus());
        view.setOnKeyPressed(event -> {
            switch (event.getCode().toString()) {
                case "UP":
                    event.consume();
                    System.out.println("UP");
//                        model.tryMove(Richting.OMHOOG);
                    break;
                case "DOWN":
                    event.consume();
                    System.out.println("DOWN");
//                        model.tryMove(Richting.LINKS);
                    break;
                case "LEFT":
                    event.consume();
                    System.out.println("LEFT");
//                        model.tryMove(Richting.LINKS);
                    break;
                case "RIGHT":
                    event.consume();
                    System.out.println("RIGHT");
//                        model.tryMove(Richting.RECHTS);
                    break;
            }
//                model.checkDone();
        });


        Scene scene = new Scene(view);

        stage = new Stage();
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) { launch(args); }
}

KeyEvents未在Javafx中触发

1 个答案: