JavaFX TabPane从外部控制器中选择选项卡

Posted 2021-04-13

我在此有用的帖子（PASSING PARAMETERS JAVAFX FXML）的开头更改了代码之后，我的setTab函数无法正常工作。它被调用，但没有执行应做的操作。

Main.java

public class Main extends Application {

public static void main(String[] args) {
    launch(args);
}
@Override
public void start(Stage primaryStage){
        Controller1 controller1 = new Controller1();
        controller1.showStage();
  }
}

Controller1.java

public class Controller1{

private final Stage thisStage;
private Controller2 controller2 = new Controller2(this);

public Controller1() {
    thisStage = new Stage();

    try {
        FXMLLoader loader = new FXMLLoader(getClass().getResource("Steuerung.fxml"));
        loader.setController(this);
        thisStage.setScene(new Scene(loader.load()));
        thisStage.setTitle("Steuerung");
    }catch (IOException e){
        e.printStackTrace();
     }
}

public void showStage(){ thisStage.show();}

@FXML private void initialize() {
    b_AnzeigeÖffnen.setOnAction(e -> openAnzeige());
    b_Ecke_Eingabe.setOnAction(e -> controller2.setTab(2));
}

private void openAnzeige(){
    Controller2 controller2 = new Controller2(this);
    controller2.showStage();
}

//Formatierungshinweis: b(Button; meist eigentlich Label(oder Menüpunkt), aber aus Designgründen als Button benutzt und deswegen auch beschriftet)
@FXML
private Menu b_Menü_Fenster;

@FXML
private MenuItem b_AnzeigeÖffnen;

@FXML
private MenuItem b_AllesSchließen;

@FXML
private Menu b_Menü_Menü;

@FXML
private MenuItem b_MStartseite;

@FXML
private MenuItem b_MTor;

@FXML
private Menu b_MKarte;

@FXML
private MenuItem b_MGelbeKarte;

@FXML
private MenuItem b_MRoteKarte;

@FXML
private MenuItem b_MAuswechselung;

@FXML
private MenuItem b_MEcke;

@FXML
private MenuItem b_MElfmeter;

@FXML
private MenuItem b_MNachspielzeit;

@FXML
private Menu b_Menü_Hilfe;

@FXML
private MenuItem b_Über;

@FXML
private Label b_Startseite;

@FXML
private Label b_Tor;

@FXML
private Label b_GelbeKarte;

@FXML
private Label b_RoteKarte;

@FXML
private Label b_Auswechselung;

@FXML
private Label b_Ecke;

@FXML
private Label b_Elfmeter;

@FXML
private Label b_Nachspielzeit;

@FXML
private TabPane TP_AktuellesMenü;

@FXML
private Tab t_Startseite;

@FXML
private Label Anzeige_AktuellesMenü;

@FXML
private Label l_Timer;

@FXML
private Label l_Spielstand1;

@FXML
private Tab t_Tor;

@FXML
private Label Anzeige_AktuellesMenü1;

@FXML
private CheckBox CB_Heim;

@FXML
private CheckBox CB_Gast;

@FXML
private TextField tf_Spielernummer;

@FXML
private TextField tf_Spielername;

@FXML
private Button b_Tor_Eingabe;

@FXML
private Label Anzeige_AktuellesMenü11;

@FXML
private Button b_TorAnnulation_Eingabe;

@FXML
private Label l_Spielstand;

@FXML
private Tab t_GelbeKarte;

@FXML
private Label Anzeige_AktuellesMenü2;

@FXML
private CheckBox CB_GKHeim;

@FXML
private CheckBox CB_GKGast;

@FXML
private TextField tf_GKSpielernummer;

@FXML
private TextField tf_GKSpielername;

@FXML
private Button b_GK_Eingabe;

@FXML
private Tab t_RoteKarte;

@FXML
private Label Anzeige_AktuellesMenü3;

@FXML
private CheckBox CB_RKHeim;

@FXML
private CheckBox CB_RKGast;

@FXML
private TextField tf_RKSpielernummer;

@FXML
private TextField tf_RKSpielername;

@FXML
private Button b_RK_Eingabe;

@FXML
private Tab t_Auswechselung;

@FXML
private Label Anzeige_AktuellesMenü4;

@FXML
private CheckBox CB_A_Heim;

@FXML
private CheckBox CB_A_Gast;

@FXML
private TextField tf_AA_Spielernummer;

@FXML
private TextField tf_AA_Spielername;

@FXML
private TextField tf_AE_Spielernummer;

@FXML
private TextField tf_AE_Spielername;

@FXML
private Button tf_A_Eingabe;

@FXML
private Tab t_Ecke;

@FXML
private Label Anzeige_AktuellesMenü5;

@FXML
private CheckBox CB_ECKE_Heim;

@FXML
private CheckBox CB_ECKE_Gast;

@FXML
private Button b_Ecke_Eingabe;

@FXML
private Tab t_Elfmeter;

@FXML
private Label Anzeige_AktuellesMenü6;

@FXML
private Tab t_Nachspielzeit;

@FXML
private Label Anzeige_AktuellesMenü7;

@FXML
private Label Anzeige_AktuellesMenü71;

@FXML
private TextField tf_Machspielzeit_Länge;

@FXML
private Button b_Nachspielzeit_Eingabe;

@FXML
private CheckBox CheckBox_Verlängerung;

@FXML
private Label l_Spielzeit;

@FXML
private Label l_NormaleZeit;

@FXML
private Button b_Abseits_Heim;

@FXML
private Button b_Abseits_Gast;

@FXML
private Button b_Abseits_Annulation;

@FXML
private CheckBox CB_AbseitsZählen;

@FXML
private CheckBox CB_ElH;

@FXML
private CheckBox CB_ElG;

@FXML
private Button b_El_Eingabe;

@FXML
private Button b_Zuschauerzahl_Eingabe;

@FXML
private TextField tf_Zuschauerzahl;

@FXML
public Button b1;

/*@FXML
void AnzeigeÖffnen(ActionEvent event){
    try {
        FXMLLoader loaderAnzeige = new FXMLLoader(getClass().getResource("../projekt.fxml/Anzeige.projekt.fxml"));
        Parent root = loaderAnzeige.load();
        this.controller2 = loaderAnzeige.getController();
        this.controller2.setController1(this);
        Stage stage = new Stage();
        stage.setTitle("Anzeige");
        stage.setScene(new Scene(root, 800, 600));
        stage.show();

    }
    catch (IOException e) {
        e.printStackTrace();}
}*/

@FXML
void AnzeigeSchließen(ActionEvent event){
    Platform.exit();
}

@FXML
void AbseitsZählen(ActionEvent event){
    if(CB_AbseitsZählen.isSelected()==false){
        b_Abseits_Annulation.setVisible(false);
        b_Abseits_Gast.setVisible(false);
        b_Abseits_Heim.setVisible(false);
    }else if(CB_AbseitsZählen.isSelected()==true){
        b_Abseits_Annulation.setVisible(true);
        b_Abseits_Gast.setVisible(true);
        b_Abseits_Heim.setVisible(true);
    }
}

@FXML
void CBGedrückt_TorH(ActionEvent event){
    if (CB_Heim.isSelected()==true) CB_Gast.setSelected(false);
}

@FXML
void CBGedrückt_TorG(ActionEvent event){
    if (CB_Gast.isSelected()==true) CB_Heim.setSelected(false);
}

@FXML
void CBGedrückt_GKH(ActionEvent event){
    if (CB_GKHeim.isSelected()==true) CB_GKGast.setSelected(false);
}

@FXML
void CBGedrückt_GKG(ActionEvent event){
    if (CB_GKGast.isSelected()==true) CB_GKHeim.setSelected(false);
}

@FXML
void CBGedrückt_RKH(ActionEvent event){
    if (CB_RKHeim.isSelected()==true) CB_RKGast.setSelected(false);
}

@FXML
void CBGedrückt_RKG(ActionEvent event){
    if (CB_RKGast.isSelected()==true) CB_RKHeim.setSelected(false);
}

@FXML
void CBGedrückt_AH(ActionEvent event){
    if (CB_A_Heim.isSelected()==true) CB_A_Gast.setSelected(false);
}

@FXML
void CBGedrückt_AG(ActionEvent event){
    if (CB_A_Gast.isSelected()==true) CB_A_Heim.setSelected(false);
}

@FXML
void CBGedrückt_EH(ActionEvent event){
    if (CB_ECKE_Heim.isSelected()==true) CB_ECKE_Gast.setSelected(false);
}

@FXML
void CBGedrückt_EG(ActionEvent event){
    if (CB_ECKE_Gast.isSelected()==true) CB_ECKE_Heim.setSelected(false);
}

@FXML
void CBGedrückt_ElH(ActionEvent event){
    if (CB_ElH.isSelected()==true) CB_ElG.setSelected(false);
}

@FXML
void CB_Gedrückt_ElG(ActionEvent event){
    if(CB_ElG.isSelected()==true) CB_ElH.setSelected(false);
}

//Methoden zur Farbänderung des jeweiligen Labels in der rechten Menüleiste, wenn auf das entsprechende Label geklickt wird
//Formatierung: Menü(rechte Menüspalte)XY(Anfangsbuchstaben des jeweiligen Labels)Gedrückt

@FXML
void MenüSGedrückt(MouseEvent event) {
     b_Startseite.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        TP_AktuellesMenü.getSelectionModel().select(t_Startseite);

}

@FXML
void MenüAGedrückt(MouseEvent event) {
     b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
         b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Auswechselung);
  //  controller2.TP_A.getSelectionModel().select(tA);
}

@FXML
void MenüEGedrückt(MouseEvent event) {
     b_Ecke.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Ecke);
}

@FXML
void MenüElGedrückt(MouseEvent event) {
     b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
         b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
         b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Elfmeter);
}

@FXML
void MenüGGedrückt(MouseEvent event) {
    b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
        b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_GelbeKarte);
    }

@FXML
void MenüNGedrückt(MouseEvent event) {
    b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Nachspielzeit);
}

@FXML
void MenüRGedrückt(MouseEvent event) {
    b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
     TP_AktuellesMenü.getSelectionModel().select(t_RoteKarte);
}

@FXML
void MenüTGedrückt(MouseEvent event) {
    b_Tor.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
        b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Tor);
}

//Methoden zur Farbänderung der Label in der rechten Menüleiste, wenn ein Menüpunkt in der KopfMenüzeile geklickt wurde
//Formatierung: M(Menübar)M(Menüpunkt)XY(Anfangsbuchstaben des jeweiligen Buttons)Gedrückt

@FXML
void MMAGedrückt(ActionEvent event) {
    b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Auswechselung);
}

@FXML
void MMEGedrückt(ActionEvent event) {
    b_Ecke.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Ecke);
}

@FXML
void MMElGedrückt(ActionEvent event) {
    b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
    b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Elfmeter);
}

@FXML
void MMGGedrückt(ActionEvent event) {
    b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
    b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_GelbeKarte);
}

@FXML
void MMNGedrückt(ActionEvent event) {
    b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Nachspielzeit);
}

@FXML
void MMRGedrückt(ActionEvent event) {
    b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_RoteKarte);
}

@FXML
void MMSGedrückt(ActionEvent event) {
    b_Startseite.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Tor.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Startseite);
}

@FXML
void MMTGedrückt(ActionEvent event) {
    b_Tor.setBackground(new Background(new BackgroundFill(Color.LIGHTGREY, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Nachspielzeit.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Startseite.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Auswechselung.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Ecke.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_Elfmeter.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_GelbeKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    b_RoteKarte.setBackground(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY)));
    TP_AktuellesMenü.getSelectionModel().select(t_Tor);
}
}

Controller2.java

public class Controller2 {

private Stage thisStage;

private final Controller1 controller1;

public Controller2(Controller1 controller1) {
    this.controller1 = controller1;
    thisStage = new Stage();
    try {
        FXMLLoader loader = new FXMLLoader(getClass().getResource("Anzeige.fxml"));
        loader.setController(this);
        thisStage.setScene(new Scene(loader.load()));
        thisStage.setTitle("Spielstand");

        }catch (IOException e){
            e.printStackTrace();
        }
}

public void showStage() { thisStage.show();}


@FXML
private TabPane TP_A;

@FXML
private Tab tA_Home;

@FXML
private Tab tA_EckePreview;

@FXML
private Tab tA_EckVerhältnis;

@FXML
private Tab tA_Spielverlauf;

@FXML
private Tab tA_Spielstatistik;

@FXML
private Tab tA_GelbeKarte;

@FXML
private Tab tA_RoteKarte;

@FXML
private Tab tA_Elfmeter;

@FXML
private Tab tA_Auswechselung;


@FXML public void setTab(Integer i) {
   System.out.println("TABSWITCH");
    switch(i) {
        case 1: TP_A.getSelectionModel().select(tA_Home); break;
        case 2: TP_A.getSelectionModel().select(tA_EckePreview); break;
        case 3: TP_A.getSelectionModel().select(tA_EckVerhältnis); break;
        case 4: TP_A.getSelectionModel().select(tA_Spielverlauf); break;
        case 5: TP_A.getSelectionModel().select(tA_Spielstatistik); break;
        case 6: TP_A.getSelectionModel().select(tA_GelbeKarte); break;
        case 7: TP_A.getSelectionModel().select(tA_RoteKarte); break;
        case 8: TP_A.getSelectionModel().select(tA_Elfmeter); break;
        case 9: TP_A.getSelectionModel().select(tA_Auswechselung); break;
        //case 10: TP_A.getSelectionModel().select(tA_Nachspielzeit/Verlängerung); break; -> TODO
        default: System.out.println("Fehler: Tab in TP_A nicht vorhanden!"); break;
        }
    }
}

！包装和进口件的车身长度已被删除！

我知道我必须重写最后几个函数，因为它们很容易合而为一。

Steuerung.fxml和Anzeige.fxml太长了。如果您想看到它们，这是完整的GitLab项目。GitLab Project

对不起，德语注释，函数/变量名和/或对象

感谢您的建议！

编辑：语法

答案

Controller1.java

public class Controller1{

private final Stage thisStage;
private Controller2 controller2 = new Controller2(this);

public Controller1() {
thisStage = new Stage();

try {
    FXMLLoader loader = new FXMLLoader(getClass().getResource("Steuerung.fxml"));
    loader.setController(this);
    thisStage.setScene(new Scene(loader.load()));
    thisStage.setTitle("Steuerung");
}catch (IOException e){
    e.printStackTrace();
 }
}

public void showStage(){ thisStage.show();}

@FXML private void initialize() {
    b_AnzeigeÖffnen.setOnAction(e -> openAnzeige());
    b_Ecke.setOnMouseClicked(e -> controller2.setTab(2));
}

private void openAnzeige(){
    Controller2 controller2 = new Controller2(this);
    controller2.showStage();
}

@FXML
private Label b_Ecke;

@FXML
private MenuItem b_AnzeigeÖffnen
}

更好？