Question

我正在用JavaFX创建一个棋盘游戏。我有两个控制器用于我的项目，并希望从主控制器访问变量和方法。我的主控制器具有大部分游戏逻辑和UI，但我希望有一个特殊情况的弹出窗口。现在我有弹出窗口，但想在弹出窗口控制器中使用主控制器中的变量。我能够从辅助控制器到主控制器获取变量，但不是相反。任何帮助将不胜感激。

以下是主控制器中打开新弹出窗口的代码：

public void newWindow() {
        try {
            FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("player.fxml"));
            //Parent root = fxmlLoader.load();
            Stage playerStage = new Stage();
            playerStage.setTitle("Pick your move");
            playerStage.initStyle(StageStyle.UNDECORATED);
            playerStage.setScene(new Scene((Pane) fxmlLoader.load()));
            playerStage.show();
            ControllerPopup controller =
                    fxmlLoader.<ControllerPopup>getController();
            this.controller = controller;
            if(currentCard.getMoves() == 10){
            controller.handleTen();
            }
            else if(currentCard.getMoves() == 11){
            controller.handleEleven();
            }
            else{
            controller.handleSeven();
            }
            disablePawns(bluePawns);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

这是辅助控制器：

public class ControllerPopup implements Initializable{
    @FXML
    private RadioButton button1,button2,button3,button4;
    @FXML
    private Button closeButton;
    private RadioButton selectedButton;
    private ToggleGroup group;
    Controller controller;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        group = new ToggleGroup();
        button1.setToggleGroup(group);
        button2.setToggleGroup(group);
        button3.setToggleGroup(group);
        button4.setToggleGroup(group);
    }

    public void handleTen(){
        button1.setSelected(true);
        button1.setText("Move forward 10");
        button2.setText("Move backwards 1");
        button3.setDisable(true);
        button4.setDisable(true);

    }

    public void handleEleven(){
        button1.setSelected(true);
        button1.setText("Swap with another pawn");
        button2.setText("Move forward 11");
        button3.setDisable(true);
        button4.setDisable(true);
    }

    public void handleSeven(){
        button1.setSelected(true);
        button1.setText("Move forward 1 and 6");
        button2.setText("Move forward 2 and 5");
        button3.setText("Move forward 3 and 4");
        button4.setText("Move forward 7");
    }

    @FXML
    public void handleCloseButtonAction(ActionEvent event) {
        selectedButton = (RadioButton) group.getSelectedToggle();
        Stage stage = (Stage) closeButton.getScene().getWindow();
        stage.close();


    }

    public RadioButton getSelectedButton(){
        return selectedButton;
    }

Answer 1

您可以在“辅助”控制器中创建适当的设置方法，并将值从主控制器传递给它们：

controller.setXXX(...);

从主控制器获取变量

1 个答案: