Combo JavaFx avec FXML

Voir ce JavaFX FXML ComboBox démo app. Pour la dynamique de données, vous pouvez soit générer dynamiquement votre fxml en utilisant quelque chose comme Vitesse ou, peut-être mieux, remplir un ObservableList et de les fournir à votre fxml injecté ComboBox instance.

Ici est une version modifiée de la démo app qui remplit la ObservableList de la zone de liste déroulante d'éléments dans le contrôleur de l'initialiseur.

fruitcombo.css

/** fruitcombo.css
place in same directory as FruitComboApplication.java
ensure build system copies the css file to the build output path */

.layout {
  -fx-background-color: cornsilk;
}

#selected-fruit-frame {
  -fx-border-color: burlywood;
  -fx-border-width: 5;
  -fx-background-color: white;
}

.bold-label {
  -fx-font-weight: bold;
}

fruitcombo.fxml

<?xml version="1.0" encoding="UTF-8"?>
<!-- fruitcombo.fxml
place in same directory as FruitComboApplication.java
ensure build system copies the fxml file to the build output path -->
<?import java.lang.*?>
<?import java.net.*?>
<?import java.util.*?>
<?import javafx.collections.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.image.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.paint.*?>
<?scenebuilder-stylesheet fruitcombo.css?>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="205.0" prefWidth="168.0" styleClass="layout" xmlns:fx="http://javafx.com/fxml" fx:controller="fruit.FruitComboController">
<children>
<ComboBox fx:id="fruitCombo" layoutX="15.0" layoutY="33.0" prefWidth="90.0" promptText="choose"/>
<Label id="fruitSelectorLabel" layoutX="15.0" layoutY="10.0" styleClass="bold-label" text="Fruit Selector" />
<VBox alignment="TOP_CENTER" layoutX="14.0" layoutY="62.0" prefHeight="134.0" prefWidth="140.0" spacing="8.0">
<children>
<StackPane id="selected-fruit-frame" minHeight="100.0" minWidth="118.0" prefHeight="108.0" prefWidth="140.0">
<children>
<ImageView fx:id="orangeImage" fitHeight="91.99999237060547" fitWidth="122.66666035739114" pickOnBounds="true" preserveRatio="true" visible="false">
<image>
<Image url="http://i.i.com.com/cnwk.1d/i/tim/2011/03/10/orange_iStock_000001331357X_540x405.jpg" preserveRatio="false" smooth="false" />
</image>
</ImageView>
<ImageView fx:id="pearImage" fitHeight="93.0" fitWidth="124.0" pickOnBounds="true" preserveRatio="true" visible="false">
<image>
<Image url="http://smoothiejuicerecipes.com/pear.jpg" preserveRatio="false" smooth="false" />
</image>
</ImageView>
<ImageView fx:id="appleImage" fitHeight="93.0" fitWidth="124.0" pickOnBounds="true" preserveRatio="true" visible="false">
<image>
<Image url="http://uhallnyu.files.wordpress.com/2011/11/green-apple.jpg" preserveRatio="false" smooth="false" />
</image>
</ImageView>
</children>
</StackPane>
<Label fx:id="selectedFruit" textAlignment="CENTER" />
</children>
</VBox>
</children>
<stylesheets>
<URL value="@fruitcombo.css" />
</stylesheets>
</AnchorPane>

FruitComboController.java

package fruit;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.image.ImageView;
/** JavaFX fxml controller for fruit combo fxml demo application. */
public class FruitComboController implements Initializable {
@FXML //fx:id="appleImage"
private ImageView appleImage; //Value injected by FXMLLoader
@FXML //fx:id="fruitCombo"
private ComboBox<String> fruitCombo; //Value injected by FXMLLoader
@FXML //fx:id="orangeImage"
private ImageView orangeImage; //Value injected by FXMLLoader
@FXML //fx:id="pearImage"
private ImageView pearImage; //Value injected by FXMLLoader
@FXML //fx:id="selectedFruit"
private Label selectedFruit; //Value injected by FXMLLoader
@Override //This method is called by the FXMLLoader when initialization is complete
public void initialize(URL fxmlFileLocation, ResourceBundle resources) {
assert appleImage != null : "fx:id=\"appleImage\" was not injected: check your FXML file 'fruitcombo.fxml'.";
assert fruitCombo != null : "fx:id=\"fruitCombo\" was not injected: check your FXML file 'fruitcombo.fxml'.";
assert orangeImage != null : "fx:id=\"orangeImage\" was not injected: check your FXML file 'fruitcombo.fxml'.";
assert pearImage != null : "fx:id=\"pearImage\" was not injected: check your FXML file 'fruitcombo.fxml'.";
assert selectedFruit != null : "fx:id=\"selectedFruit\" was not injected: check your FXML file 'fruitcombo.fxml'.";
//populate the fruit combo box with item choices.
fruitCombo.getItems().setAll("Apple", "Orange", "Pear");
//bind the selected fruit label to the selected fruit in the combo box.
selectedFruit.textProperty().bind(fruitCombo.getSelectionModel().selectedItemProperty());
//listen for changes to the fruit combo box selection and update the displayed fruit image accordingly.
fruitCombo.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<String>() {
@Override public void changed(ObservableValue<? extends String> selected, String oldFruit, String newFruit) {
if (oldFruit != null) {
switch(oldFruit) {
case "Apple": appleImage.setVisible(false); break;
case "Orange": orangeImage.setVisible(false); break;
case "Pear": pearImage.setVisible(false); break;
}
}
if (newFruit != null) {
switch(newFruit) {
case "Apple": appleImage.setVisible(true); break;
case "Orange": orangeImage.setVisible(true); break;
case "Pear": pearImage.setVisible(true); break;
}
}
}
});
}
}

FruitComboApplication.java

package fruit;
import java.io.IOException;
import java.net.URL;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;
/** Main application class for fruit combo fxml demo application */
public class FruitComboApplication extends Application {
public static void main(String[] args) { launch(args); }
@Override public void start(Stage stage) throws IOException {
stage.setTitle("Choices");
stage.getIcons().add(new Image("http://files.softicons.com/download/application-icons/pixelophilia-icons-by-omercetin/png/32/apple-green.png"));
AnchorPane layout = FXMLLoader.load(
new URL(FruitComboApplication.class.getResource("fruitcombo.fxml").toExternalForm())
);
stage.setScene(new Scene(layout));
stage.show();
}
}

Exemple De Programme De Sortie:

OriginalL'auteur jewelsea