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| Use JavaFX FileChooser to open image file, and display on 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);
}
}
};
}
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- Auto fit JavaFX 2 ImageView
- Load image file as InputStream
