在这个简单的JavaFX应用程序中，当添加一个新用户时，文本会显示＆＃34;新用户添加＆＃34;打印到第一个选项卡中的文本区域。如何添加附加选项卡和文本＆＃34;新用户添加＆＃34;每次添加新用户时都会在其中打印一个文本区域？
非常感谢任何帮助。
查看＆gt; PersonOverview.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.*?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<HBox xmlns="http://javafx.com/javafx/8.0.40" xmlns:fx="http://javafx.com/fxml/1" fx:controller="ch.makery.address.PersonOverviewController">
<children>
<TableView fx:id="personTable" prefHeight="298.0" prefWidth="246.0">
<columns>
<TableColumn fx:id="firstNameColumn" prefWidth="75.0" text="First Name" />
<TableColumn fx:id="lastNameColumn" prefWidth="75.0" text="Last Name" />
</columns>
</TableView>
<VBox prefHeight="298.0" prefWidth="271.0">
<children>
<AnchorPane prefHeight="284.0" prefWidth="227.0">
<children>
<Label layoutX="9.0" layoutY="4.0" prefHeight="19.0" prefWidth="96.0" text="Person Details" />
<GridPane layoutX="108.0" layoutY="121.0" AnchorPane.leftAnchor="5.0" AnchorPane.rightAnchor="5.0" AnchorPane.topAnchor="30.0">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
</rowConstraints>
<children>
<Label text="First Name" />
<Label text="Last Name" GridPane.rowIndex="1" />
<Label text="Street" GridPane.rowIndex="2" />
<Label text="City" GridPane.rowIndex="3" />
<Label text="Postal Code" GridPane.rowIndex="4" />
<Label text="Birthday" GridPane.rowIndex="5" />
<Label fx:id="firstNameLabel" text="Label" GridPane.columnIndex="1" />
<Label fx:id="lastNameLabel" text="Label" GridPane.columnIndex="1" GridPane.rowIndex="1" />
<Label fx:id="streetLabel" text="Label" GridPane.columnIndex="1" GridPane.rowIndex="2" />
<Label fx:id="cityLabel" text="Label" GridPane.columnIndex="1" GridPane.rowIndex="3" />
<Label fx:id="postalCodeLabel" text="Label" GridPane.columnIndex="1" GridPane.rowIndex="4" />
<Label fx:id="birthdayLabel" text="Label" GridPane.columnIndex="1" GridPane.rowIndex="5" />
</children>
</GridPane>
<ButtonBar buttonMinWidth="50.0" layoutX="14.0" layoutY="244.0" prefHeight="40.0" prefWidth="200.0">
<buttons>
<Button mnemonicParsing="false" onAction="#handleNewPerson" text="New" />
<Button mnemonicParsing="false" onAction="#handleEditPerson" text="Edit" />
<Button mnemonicParsing="false" onAction="#handleDeletePerson" text="Delete" />
</buttons>
</ButtonBar>
</children>
<VBox.margin>
<Insets />
</VBox.margin>
</AnchorPane>
</children>
</VBox>
<TabPane prefHeight="296.0" prefWidth="337.0" tabClosingPolicy="UNAVAILABLE">
<tabs>
<Tab>
<content>
<TextArea fx:id="textArea" prefHeight="264.0" prefWidth="302.0" />
</content>
</Tab>
</tabs>
</TabPane>
</children>
</HBox>
查看＆gt; PersonOverviewController
package ch.makery.address;
import ch.makery.address.util.DateUtil;
import javafx.fxml.FXML;
import javafx.scene.control.*;
import ch.makery.address.MainApp;
import ch.makery.address.model.Person;
public class PersonOverviewController {
@FXML
private TableView<Person> personTable;
@FXML
private TableColumn<Person, String> firstNameColumn;
@FXML
private TableColumn<Person, String> lastNameColumn;
@FXML
private Label firstNameLabel;
@FXML
private Label lastNameLabel;
@FXML
private Label streetLabel;
@FXML
private Label postalCodeLabel;
@FXML
private Label cityLabel;
@FXML
private Label birthdayLabel;
@FXML
private TextArea textArea;
// Reference to the main application.
private MainApp mainApp;
/**
* The constructor.
* The constructor is called before the initialize() method.
*/
public PersonOverviewController() {
}
/**
* Initializes the controller class. This method is automatically called
* after the fxml file has been loaded.
*/
@FXML
private void initialize() {
// Initialize the person table with the two columns.
firstNameColumn.setCellValueFactory(
cellData -> cellData.getValue().firstNameProperty());
lastNameColumn.setCellValueFactory(
cellData -> cellData.getValue().lastNameProperty());
// Clear person details.
showPersonDetails(null);
// Listen for selection changes and show the person details when changed.
personTable.getSelectionModel().selectedItemProperty().addListener(
(observable, oldValue, newValue) -> showPersonDetails(newValue));
}
/**
* Is called by the main application to give a reference back to itself.
*
* @param mainApp
*/
public void setMainApp(MainApp mainApp) {
this.mainApp = mainApp;
// Add observable list data to the table
personTable.setItems(mainApp.getPersonData());
}
/**
* Fills all text fields to show details about the person.
* If the specified person is null, all text fields are cleared.
*
* @param person the person or null
*/
private void showPersonDetails(Person person) {
if (person != null) {
// Fill the labels with info from the person object.
firstNameLabel.setText(person.getFirstName());
lastNameLabel.setText(person.getLastName());
streetLabel.setText(person.getStreet());
postalCodeLabel.setText(Integer.toString(person.getPostalCode()));
cityLabel.setText(person.getCity());
birthdayLabel.setText(DateUtil.format(person.getBirthday()));
// birthdayLabel.setText(...);
} else {
// Person is null, remove all the text.
firstNameLabel.setText("");
lastNameLabel.setText("");
streetLabel.setText("");
postalCodeLabel.setText("");
cityLabel.setText("");
birthdayLabel.setText("");
}
}
public void print(String message) {
textArea.appendText(message);
}
/**
* Called when the user clicks on the delete button.
*/
@FXML
private void handleDeletePerson() {
int selectedIndex = personTable.getSelectionModel().getSelectedIndex();
if (selectedIndex >= 0) {
personTable.getItems().remove(selectedIndex);
} else {
// Nothing selected.
Alert alert = new Alert(Alert.AlertType.WARNING);
alert.initOwner(mainApp.getPrimaryStage());
alert.setTitle("No Selection");
alert.setHeaderText("No Person Selected");
alert.setContentText("Please select a person in the table.");
alert.showAndWait();
}
}
/**
* Called when the user clicks the new button. Opens a dialog to edit
* details for a new person.
*/
@FXML
private void handleNewPerson() {
Person tempPerson = new Person();
boolean okClicked = mainApp.showPersonEditDialog(tempPerson);
if (okClicked) {
mainApp.getPersonData().add(tempPerson);
print("New User added");
}
}
/**
* Called when the user clicks the edit button. Opens a dialog to edit
* details for the selected person.
*/
@FXML
private void handleEditPerson() {
Person selectedPerson = personTable.getSelectionModel().getSelectedItem();
if (selectedPerson != null) {
boolean okClicked = mainApp.showPersonEditDialog(selectedPerson);
if (okClicked) {
showPersonDetails(selectedPerson);
}
} else {
// Nothing selected.
Alert alert = new Alert(Alert.AlertType.WARNING);
alert.initOwner(mainApp.getPrimaryStage());
alert.setTitle("No Selection");
alert.setHeaderText("No Person Selected");
alert.setContentText("Please select a person in the table.");
alert.showAndWait();
}
}
}
答案 0 :(得分：1)
在你的handleNewPerson方法中，您必须添加以下内容：
Tab tab = new Tab();
tab.setText("TabText");
TextArea ta = new TextArea("New User added");
tab.setContent(ta);
tabPan.getTabs().add(tab);
添加添加：
@FXML
private TabPane tabPan;
并在fxml中添加
fx:id="tabPan"
到TabPane
现在我无法测试你的程序，因为你的程序需要很多其他类。但你也可以看到类似her的一个很好的例子。