JavaFX 2.0 FXML子窗口

Question

经过大量搜索，我发现了这样一个问题：如何创建JavaFX2.0应用程序MDI。我真正想知道的是，是否可以使用JavaFX组件和场景构建器创建一个到主窗口的弹出窗口或子窗口，以创建新窗口。

我最后给出了一个模态弹出窗口：

primaryController.primaryStage = primaryStage;

public void OnBtnShowChild(ActionEvent event) {
    MessageBoxController msgBox = new MessageBoxController();
    try {
        msgBox.showMessageBox(primaryStage);
    } catch (Exception e) {
        e.printStackTrace(); 
    }
}

这是我在Scene Builder的帮助下创建的MessageBoxController类。它具有标准弹出框的基本布局，可用于显示图标（ImageView）、文本框（用于您的消息文本）和两个按钮（用于“是/否”功能）。我还不确定如何让它将按下的按钮的结果传递回PrimaryController。

public class MessageBoxController implements Initializable {

@FXML
// fx:id="btnNo"
private Button btnNo; // Value injected by FXMLLoader

@FXML
// fx:id="btnYes"
private Button btnYes; // Value injected by FXMLLoader

@FXML
// fx:id="imgMessage"
private ImageView imgMessage; // Value injected by FXMLLoader

@FXML
// fx:id="txtMessage"
private TextField txtMessage; // Value injected by FXMLLoader

private Stage myParent;
private Stage messageBoxStage;

public void showMessageBox(Stage parentStage) {
    this.myParent = parentStage;

    try {
        messageBoxStage = new Stage();
        AnchorPane page = (AnchorPane) FXMLLoader.load(MessageBoxController.class.getResource("/MessageBox/MessageBoxFXML.fxml"));
        Scene scene = new Scene(page);
        messageBoxStage.setScene(scene);
        messageBoxStage.setTitle("Message Box");
        messageBoxStage.initOwner(this.myParent);
        messageBoxStage.initModality(Modality.WINDOW_MODAL);
        messageBoxStage.show();
    } catch (Exception ex) {
        System.out.println("Exception foundeth in showMessageBox");
        ex.printStackTrace();
    }
}
@Override
public void initialize(URL fxmlFileLocation, ResourceBundle arg1) {
    txtMessage.setText("Howdy");

}

public void OnBtnYes(ActionEvent event) {

}

public void OnBtnNo(ActionEvent event) {

}

}

最后，这是我在Scene Builder中创建的FXML文件：

<?xml version="1.0" encoding="UTF-8"?>

<?import java.lang.*?>
<?import java.net.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.image.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?>

<AnchorPane id="AnchorPane2" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity"   
      prefHeight="172.0" prefWidth="524.0" xmlns:fx="http://javafx.com/fxml" fx:controller="MessageBox.MessageBoxController">
  <children>
    <VBox prefHeight="172.0" prefWidth="524.0" styleClass="vboxes" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
      <children>
        <HBox alignment="CENTER" prefHeight="109.99990000000253" prefWidth="516.0" spacing="30.0">
          <children>
            <ImageView fx:id="imgMessage" fitHeight="110.0" fitWidth="146.66666666666666" pickOnBounds="true" preserveRatio="true" styleClass="null" />
            <TextField fx:id="txtMessage" editable="false" prefHeight="47.0" prefWidth="325.0" />
          </children>
          <stylesheets>
        <URL value="@MyCSS.css" />
      </stylesheets>
    </HBox>
    <HBox alignment="CENTER" prefHeight="58.0" prefWidth="516.0" spacing="30.0">
      <children>
        <Button fx:id="btnYes" mnemonicParsing="false" onAction="#OnBtnYes" text="Button" />
        <Button fx:id="btnNo" mnemonicParsing="false" onAction="#OnBtnNo" text="Button" />
      </children>
    </HBox>
  </children>
  <stylesheets>
    <URL value="@MyCSS.css" />
  </stylesheets>
</VBox>
</children>
<stylesheets>
<URL value="@MyCSS.css" />
</stylesheets>
</AnchorPane>

Answer 1

你在集体课上试过吗？您可以使用fxml和控制器添加不同的元素。

Group root= new Group(); 
AnchorPane frame=FXMLLoader.load(getClass().getResource("frame.fxml"));
AnchorPane  content=  FXMLLoader.load(getClass().getResource("principal.fxml"));
root.getChildren().add(window);
root.getChildren().add(frame);
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();