创建自定义对话框
你可以创建包含许多组件的自定义对话框，并在其上执行许多功能。它表现得像主人阶段的第二阶段。
在下面的示例中，一个应用程序在主阶段 tableview 中显示 person 并在对话框中创建一个人（AddingPersonDialog）。由 SceneBuilder 创建的 GUI，但它们可以由纯 Java 代码创建。
样品申请：
AppMain.java
package customdialog;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class AppMain extends Application {
@Override
public void start(Stage primaryStage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("AppMain.fxml"));
Scene scene = new Scene(root, 500, 500);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
AppMainController.java
package customdialog;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Modality;
import javafx.stage.Stage;
public class AppMainController implements Initializable {
@FXML
private TableView<Person> tvData;
@FXML
private TableColumn colId;
@FXML
private TableColumn colName;
@FXML
private TableColumn colAge;
private ObservableList<Person> tvObservableList = FXCollections.observableArrayList();
@FXML
void onOpenDialog(ActionEvent event) throws IOException {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("AddPersonDialog.fxml"));
Parent parent = fxmlLoader.load();
AddPersonDialogController dialogController = fxmlLoader.<AddPersonDialogController>getController();
dialogController.setAppMainObservableList(tvObservableList);
Scene scene = new Scene(parent, 300, 200);
Stage stage = new Stage();
stage.initModality(Modality.APPLICATION_MODAL);
stage.setScene(scene);
stage.showAndWait();
}
@Override
public void initialize(URL location, ResourceBundle resources) {
colId.setCellValueFactory(new PropertyValueFactory<>("id"));
colName.setCellValueFactory(new PropertyValueFactory<>("name"));
colAge.setCellValueFactory(new PropertyValueFactory<>("age"));
tvData.setItems(tvObservableList);
}
}
AppMain.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.VBox?>
<AnchorPane maxHeight="400.0" minHeight="400.0" minWidth="500.0" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="customdialog.AppMainController">
<children>
<VBox alignment="CENTER" layoutX="91.0" layoutY="85.0" spacing="10.0" AnchorPane.bottomAnchor="30.0" AnchorPane.leftAnchor="30.0" AnchorPane.rightAnchor="30.0" AnchorPane.topAnchor="30.0">
<children>
<Button mnemonicParsing="false" onAction="#onOpenDialog" text="Add Person" />
<TableView fx:id="tvData" prefHeight="300.0" prefWidth="400.0">
<columns>
<TableColumn fx:id="colId" prefWidth="75.0" text="ID" />
<TableColumn fx:id="colName" prefWidth="75.0" text="Name" />
<TableColumn fx:id="colAge" prefWidth="75.0" text="Age" />
</columns>
<columnResizePolicy>
<TableView fx:constant="CONSTRAINED_RESIZE_POLICY" />
</columnResizePolicy>
</TableView>
</children>
</VBox>
</children>
</AnchorPane>
AddPersonDialogController.java
package customdialog;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.Node;
import javafx.scene.control.TextField;
import javafx.stage.Stage;
public class AddPersonDialogController {
@FXML
private TextField tfId;
@FXML
private TextField tfName;
@FXML
private TextField tfAge;
private ObservableList<Person> appMainObservableList;
@FXML
void btnAddPersonClicked(ActionEvent event) {
System.out.println("btnAddPersonClicked");
int id = Integer.valueOf(tfId.getText().trim());
String name = tfName.getText().trim();
int iAge = Integer.valueOf(tfAge.getText().trim());
Person data = new Person(id, name, iAge);
appMainObservableList.add(data);
closeStage(event);
}
public void setAppMainObservableList(ObservableList<Person> tvObservableList) {
this.appMainObservableList = tvObservableList;
}
private void closeStage(ActionEvent event) {
Node source = (Node) event.getSource();
Stage stage = (Stage) source.getScene().getWindow();
stage.close();
}
}
AddPersonDialog.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.text.Text?>
<AnchorPane minHeight="300.0" minWidth="400.0" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="customdialog.AddPersonDialogController">
<children>
<VBox alignment="CENTER" layoutX="131.0" layoutY="50.0" prefHeight="200.0" prefWidth="100.0" AnchorPane.bottomAnchor="5.0" AnchorPane.leftAnchor="5.0" AnchorPane.rightAnchor="5.0" AnchorPane.topAnchor="5.0">
<children>
<Text strokeType="OUTSIDE" strokeWidth="0.0" text="Adding Person Dialog" />
<HBox alignment="CENTER" prefHeight="50.0" prefWidth="200.0" spacing="10.0">
<children>
<Label alignment="CENTER_RIGHT" minWidth="100.0" text="Id" />
<TextField fx:id="tfId" HBox.hgrow="ALWAYS" />
</children>
<padding>
<Insets right="30.0" />
</padding>
</HBox>
<HBox alignment="CENTER" prefHeight="50.0" prefWidth="200.0" spacing="10.0">
<children>
<Label alignment="CENTER_RIGHT" minWidth="100.0" text="Name" />
<TextField fx:id="tfName" HBox.hgrow="ALWAYS" />
</children>
<padding>
<Insets right="30.0" />
</padding>
</HBox>
<HBox alignment="CENTER" prefHeight="50.0" prefWidth="200.0" spacing="10.0">
<children>
<Label alignment="CENTER_RIGHT" minWidth="100.0" text="Age" />
<TextField fx:id="tfAge" HBox.hgrow="ALWAYS" />
</children>
<padding>
<Insets right="30.0" />
</padding>
</HBox>
<HBox alignment="CENTER_RIGHT">
<children>
<Button mnemonicParsing="false" onAction="#btnAddPersonClicked" text="Add" />
</children>
<opaqueInsets>
<Insets />
</opaqueInsets>
<padding>
<Insets right="30.0" />
</padding>
</HBox>
</children>
</VBox>
</children>
</AnchorPane>
Person.java
package customdialog;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
public class Person {
private SimpleIntegerProperty id;
private SimpleStringProperty name;
private SimpleIntegerProperty age;
public Person(int id, String name, int age) {
this.id = new SimpleIntegerProperty(id);
this.name = new SimpleStringProperty(name);
this.age = new SimpleIntegerProperty(age);
}
public int getId() {
return id.get();
}
public void setId(int ID) {
this.id.set(ID);
}
public String getName() {
return name.get();
}
public void setName(String nme) {
this.name.set(nme);
}
public int getAge() {
return age.get();
}
public void setAge(int age) {
this.age.set(age);
}
@Override
public String toString() {
return "id: " + id.get() + " - " + "name: " + name.get()+ "age: "+ age.get();
}
}
截图 