Java-Buddy

The example demonstrate how to implement JavaFX FileChooser to open image file (jpg or png), and display it in a ImageView.

package javafxpixel;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.application.Application;
import javafx.embed.swing.SwingFXUtils;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.VBox;
import javafx.stage.FileChooser;
import javafx.stage.Stage;
import javax.imageio.ImageIO;
/**
 * @web http://java-buddy.blogspot.com/
 */
public class JavaFXPixel extends Application {
 
 ImageView myImageView;
 
 @Override
 public void start(Stage primaryStage) {
 
 Button btnLoad = new Button("Load");
 btnLoad.setOnAction(btnLoadEventListener);
 
 myImageView = new ImageView(); 
 
 VBox rootBox = new VBox();
 rootBox.getChildren().addAll(btnLoad, myImageView);
 
 Scene scene = new Scene(rootBox, 300, 300);
 
 primaryStage.setTitle("java-buddy.blogspot.com");
 primaryStage.setScene(scene);
 primaryStage.show();
 }
 public static void main(String[] args) {
 launch(args);
 }
 
 EventHandler<ActionEvent> btnLoadEventListener
 = new EventHandler<ActionEvent>(){
 @Override
 public void handle(ActionEvent t) {
 FileChooser fileChooser = new FileChooser();
 
 //Set extension filter
 FileChooser.ExtensionFilter extFilterJPG = new FileChooser.ExtensionFilter("JPG files (*.jpg)", "*.JPG");
 FileChooser.ExtensionFilter extFilterPNG = new FileChooser.ExtensionFilter("PNG files (*.png)", "*.PNG");
 fileChooser.getExtensionFilters().addAll(extFilterJPG, extFilterPNG);
 
 //Show open file dialog
 File file = fileChooser.showOpenDialog(null);
 
 try {
 BufferedImage bufferedImage = ImageIO.read(file);
 Image image = SwingFXUtils.toFXImage(bufferedImage, null);
 myImageView.setImage(image);
 } catch (IOException ex) {
 Logger.getLogger(JavaFXPixel.class.getName()).log(Level.SEVERE, null, ex);
 }
 }
 };
}

Related:
- Make ImageView scrollable, in ScrollPane.
- Auto fit JavaFX 2 ImageView
- Load image file as InputStream

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