Question

这听起来很奇怪但是当我使用lookup（）方法通过ID查找我想要的节点时，如果节点在TabPane中，它根本就不会伪造它。我已经google了很多，有人说lookup（）不适用于里面有内容的节点，这是TabPane案例。有一个简单的解决方法吗？我不想从我的UI中删除窗格。感谢。

代码：

public class WindowDataFacade {

private Button btn_connect          = null;
private Button btn_disconnect       = null;
private Button btn_serv_opt         = null;
private TextField fld_username      = null;
private TextField sv_address        = null;
private PasswordField passwd_field  = null;
private TextField sv_port           = null;
private ProgressBar progress        = null;
private ProgressIndicator indicator = null;

public WindowDataFacade(Parent root) {

//Tried to use the lookup() method on the TabPane, but, no success at all.
    TabPane tpane =  (TabPane) root.getScene().lookup("#tab_pane");
    tpane.lookup("#fld_userame");

    btn_connect = (Button) root.getScene().lookup("#btn_connect");
    btn_disconnect = (Button) root.getScene().lookup("#btn_disconnect");
    fld_username = (TextField) tpane.getScene().lookup("#fld_userame");
    passwd_field = (PasswordField) root.getScene().lookup("#passwd_field");
    sv_port = (TextField) root.getScene().lookup("#sv_port");
    sv_address = (TextField) root.getScene().lookup("#sv_address");
    progress = (ProgressBar) root.getScene().lookup("#progress");
    indicator = (ProgressIndicator) root.getScene().lookup("#indicator");
}

主要类别：

public void start(Stage arg0) throws Exception {

    Platform.runLater(new Runnable() {
        private Stage mainStage;
        private MainScene scene;
        private FXController fxControl = null;

        @Override
        public void run() {
            System.out.println("run: " + Thread.currentThread());
            mainStage = new Stage();
            try {
//              root = FXMLLoader.load(getClass().getResource("/fxgui.fxml"));
                FXMLLoader loader = new FXMLLoader(getClass().getResource("/fxgui.fxml"));
                Parent root = (Parent) loader.load();
                fxControl = loader.getController();
                scene = new MainScene(root);
                scene.initialize(null, null);
                mainStage.setScene(scene);
                fxControl.setFacade(scene.getFacade());

                Button node = (Button) mainStage.getScene().lookup("#btn_disconnect");
                node.setDisable(true);

                mainStage.show();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    });
    System.out.println("public void start: " + Thread.currentThread());

}

场景类：

public class MainScene extends Scene implements Initializable {

Parent root = null;

@FXML
private Button btn_connect = new Button();
@FXML
private Button btn_disconnect = new Button();
@FXML
private Button btn_serv_opt = new Button();
@FXML
private TextField fld_username = new TextField();
@FXML
private TextField sv_address = new TextField();
@FXML
private PasswordField passwd_field = new PasswordField();
@FXML
private TextField sv_port = new TextField();
@FXML
private ProgressBar progress = new ProgressBar();
@FXML
private ProgressIndicator indicator = new ProgressIndicator();

public MainScene(Parent root) {
    super(root);
    this.root = root;
}

@Override
public void initialize(URL arg0, ResourceBundle arg1) {

    //Setting and ID for each node.
    btn_connect.setId("btn_connect");
    btn_disconnect.setId("btn_disconnect");
    fld_username.setId("fld_username");
    passwd_field.setId("passwd_field");
    sv_address.setId("sv_address");
    sv_port.setId("sv_port");
    progress.setId("progress");
    indicator.setId("indicator");

}

public WindowDataFacade getFacade() {
    return new WindowDataFacade(root);
}

}

（由于某种原因，FXML在这个页面上没有正确格式化，所以我无法将其粘贴到此处，但是确保TabPane在那里，我无法访问那些节点）

tabPane中的lookup（）节点无法正常工作

0 个答案: