Like when you're downloading something from Chrome the taskbar icon shows like this:

i would like to show the progress of my program in the taskbar like that. how can you do this using javaFX...?

解决方案

hope this way helps

package so;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import javax.imageio.ImageIO;

import javafx.application.Application;

import javafx.embed.swing.SwingFXUtils;

import javafx.scene.Scene;

import javafx.scene.SnapshotParameters;

import javafx.scene.control.Button;

import javafx.scene.control.ProgressBar;

import javafx.scene.image.Image;

import javafx.scene.image.WritableImage;

import javafx.scene.layout.VBox;

import javafx.stage.Stage;

public class JavaFXExample extends Application {

public static void main(String[] args) {

launch(args);

}

private static final int ICONSIZE = 16;

ProgressBar bar = new ProgressBar(0.2d);

@Override

public void start(Stage primaryStage) {

primaryStage.setTitle("change taskbar icon");

Button btn = new Button();

btn.setText("click me several times while looking at task bar");

bar.setMaxWidth(ICONSIZE);

btn.setOnAction(ev -> {

bar.setProgress(bar.getProgress() + 0.1d);

WritableImage image = new WritableImage(ICONSIZE, ICONSIZE);

bar.snapshot(new SnapshotParameters(), image);

File file;

try {

file = File.createTempFile("temp-image", ".png");

} catch (IOException e1) {

e1.printStackTrace();

return;

}

try {

ImageIO.write(SwingFXUtils.fromFXImage(image, null), "png", file);

} catch (IOException e) {

e.printStackTrace();

}

InputStream is;

try {

is = new FileInputStream(file);

} catch (FileNotFoundException e) {

e.printStackTrace();

return;

}

primaryStage.getIcons().clear();

primaryStage.getIcons().add(new Image(is));

try {

is.close();

} catch (IOException e) {

e.printStackTrace();

}

});

VBox box = new VBox(bar, btn);

primaryStage.setScene(new Scene(box, 300, 250));

primaryStage.show();

}

}