查看不刷新按鈕-Java FX

Question

這是我在JAVAFX中的第一個項目，目前是一個簡單的程序。 我的問題是，當程序啟動時，FXMLLoadLogController的按鈕“ loadLogButton”會正確充電。 但是，當我在comboBox中選擇另一種語言時，按鈕的設置器可以正常工作，但視圖不會刷新。 有什么問題？

RPV：LoadLogController的chargeI18nValues函數可以正常工作，但是從SolverManager中調用按鈕文本時，不會在程序中刷新按鈕文本。

代碼：

SolverAssistant.java

public class SolverAssistant extends Application {

    public static ResourceBundle messages;
    public static Utils utils = new Utils();
    public static SolverManager manager;

    @Override
    public void start(Stage stage) throws Exception {
        // Load the resource bundle
        this.chargeResourceBundleLanguage();

        // Load Controllers
        Scene scene = new Scene(new StackPane());
        manager = new SolverManager(scene);
        manager.showMainView();
        stage.setScene(scene);
        stage.show();
    }

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

    public void chargeResourceBundleLanguage() {
        String defaultLanguage = utils.fileReader(new File("lang.txt"));
        switch (defaultLanguage) {
            case "en":
                messages = ResourceBundle.getBundle("bundles.bundle", Locale.forLanguageTag("en"));
                break;
            case "es":
                messages = ResourceBundle.getBundle("bundles.bundle", Locale.forLanguageTag("es"));
                break;
            case "cat":
                messages = ResourceBundle.getBundle("bundles.bundle", Locale.forLanguageTag("cat"));
                break;
            default:
                messages = ResourceBundle.getBundle("bundles.bundle", Locale.forLanguageTag("en"));
                break;
        }
    }
}

SolverManager.java

public class SolverManager {

    private final Scene scene;
    private FXMLMainController mainController;
    private FXMLLoadLogController logController;

    public SolverManager(Scene scene) {
        this.scene = scene;
    }

    public void showMainView() throws IOException {
        FXMLLoader mainLoader = new FXMLLoader(getClass().getResource("FXMLMain.fxml"));
        scene.setRoot((Parent) mainLoader.load());
        mainController = mainLoader.<FXMLMainController>getController();
        FXMLLoader loadLoader = new FXMLLoader(getClass().getResource("FXMLLoadLog.fxml"));
        loadLoader.load();
        logController = loadLoader.<FXMLLoadLogController>getController();
    }

    public void refreshI18nResources() {
        mainController.chargeI18nValues();
        logController.chargeI18nValues();
    }
}

FXMLMainController.java

public class FXMLMainController implements Initializable {

    @FXML
    private ComboBox<String> comboLanguage;

    @FXML
    private Tab loadTab;

    @FXML
    private Tab editTab;

    @Override
    public void initialize(URL url, ResourceBundle rb) {
        this.chargeI18nValues();
        this.chargeLanguageComboBox(SolverAssistant.messages.getLocale());
        comboLanguage.getSelectionModel().selectedItemProperty().addListener(this.languageComboBoxListener());
    }

    public void chargeI18nValues() {
        loadTab.setText(SolverAssistant.messages.getString("LoadLog"));
        editTab.setText(SolverAssistant.messages.getString("EditLog"));
    }

    private void chargeLanguageComboBox(Locale language) {
        comboLanguage.getItems().addAll(
                "Català",
                "English",
                "Español"
        );
        switch (language.getLanguage()) {
            case "cat":
                comboLanguage.setValue("Català");
                break;
            case "es":
                comboLanguage.setValue("Español");
                break;
            case "en":
                comboLanguage.setValue("English");
                break;
        }
    }

    // -------- Listeners
    private ChangeListener languageComboBoxListener() {
        return new ChangeListener() {
            public void stateChanged(ChangeEvent changeEvent) {
            }

            @Override
            public void changed(ObservableValue observable, Object oldValue, Object newValue) {
                switch ((String) newValue) {
                    case "Català":
                        SolverAssistant.messages = ResourceBundle.getBundle("bundles.bundle", Locale.forLanguageTag("cat"));
                        SolverAssistant.utils.fileWriter("lang.txt", "cat");
                        break;
                    case "Español":
                        SolverAssistant.messages = ResourceBundle.getBundle("bundles.bundle", Locale.forLanguageTag("es"));
                        SolverAssistant.utils.fileWriter("lang.txt", "es");
                        break;
                    case "English":
                        SolverAssistant.messages = ResourceBundle.getBundle("bundles.bundle", Locale.forLanguageTag("en"));
                        SolverAssistant.utils.fileWriter("lang.txt", "en");
                        break;
                }
                SolverAssistant.manager.refreshI18nResources();
            }
        };
    }

}

FXMLLoadLogController.java

public class FXMLLoadLogController implements Initializable {

    @FXML
    private Label logNameLabel;

    @FXML
    private TextArea logTextArea;

    @FXML
    private Button loadLogButton;

    //private String logName;
    private final String logName = "C:\\Users\\Daniel\\Desktop\\ahmaxsat-ls-ms_crafted-COMPLETE-1800-3500-2.log";
    private String log;

    @Override
    public void initialize(URL url, ResourceBundle rb) {
        this.chargeI18nValues();
    }

    public void chargeI18nValues() {
        loadLogButton.setText(SolverAssistant.messages.getString("OpenNewLog"));
    }

    // -------- Actions
    @FXML
    private void openLog(ActionEvent event) {
        JFileChooser fileChooser = new JFileChooser();
        fileChooser.setDialogTitle(SolverAssistant.messages.getString("Open"));
        fileChooser.setCurrentDirectory(new File("."));
        // Selecting File
        //if (fileChooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
        if (true) {
            //File file = fileChooser.getSelectedFile();
            log = SolverAssistant.utils.fileReader(new File(logName));
            logNameLabel.setText(logName);
            logTextArea.setText(log);
        }
    }
}

Answer 1

問題是存在兩個子/子FXML實例（及其控制器）。 這些是：
1 SolverManager.showMainView()使用FXMLLoader從SolverManager.showMainView() FXMLLoader
2）通過<fx:include>從FXMLMain.fxml加載

場景包含通過include加載的場景，但是其他位置發生文本更改。 要解決此問題，您需要選擇以下方法之一，即刪除包含或刪除fxmlloadings。 這是第二種方法：

public class SolverManager {

    private final Scene scene;
    private FXMLMainController mainController;
//    private FXMLLoadLogController loadLogController;
//    private FXMLEditLogController editLogController;

    public SolverManager(Scene scene) {
        this.scene = scene;
    }

    public void showMainView() throws IOException {
        FXMLLoader mainLoader = new FXMLLoader(getClass().getResource("FXMLMain.fxml"));
        scene.setRoot((Parent) mainLoader.load());
        mainController = mainLoader.<FXMLMainController>getController();

//        FXMLLoader loadLoader = new FXMLLoader(getClass().getResource("FXMLLoadLog.fxml"));
//        loadLoader.load();
//        loadLogController = loadLoader.<FXMLLoadLogController>getController();
//        FXMLLoader editLoader = new FXMLLoader(getClass().getResource("FXMLEditLog.fxml"));
//        editLoader.load();
//        editLogController = editLoader.<FXMLEditLogController>getController();
    }

    public void refreshI18nResources() {
        mainController.chargeI18nValues();
//        loadLogController.chargeI18nValues();
//        editLogController.chargeI18nValues();
    }
}

FXMLMainController添加到FXMLMainController ：

@FXML
private FXMLLoadLogController barTabPageLoadController;

@FXML
private FXMLEditLogController barTabPageEditController;

（變量名稱來自fx:id + Controller 。請參見未將Subcontroller注入到主控制器中 ）

並在同一文件中更改以下內容

public void chargeI18nValues() {
    loadTab.setText(SolverAssistant.messages.getString("LoadLog"));
    editTab.setText(SolverAssistant.messages.getString("EditLog"));
    barTabPageLoadController.chargeI18nValues();
    barTabPageEditController.chargeI18nValues();
}