Disable the Cancel Button in Progress Bar in JavaFx - javafx

Question

I have made a progress bar in javafx. There is a cancel Button by default. I just want to disable this cancel button when my task got completed.
jobProgressView.setGraphicFactory(task -> {
return new Button("save");
});

Answer 1

Without more code, I'm only able to make a guess. Even your added code isn't enough to know all things from your implementation.
So this solution assumes, that you have a Task that is running and showing it's progress on a Progressbar. The Task here is wrapped in a service, which can be restarted (maybe you also need this?).
import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.concurrent.Service;
import javafx.concurrent.Task;
import javafx.concurrent.Worker;
import javafx.event.ActionEvent;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ProgressBar;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class CancelButtonDemo extends Application {
Service<Integer> service = new MyService();
#Override
public void start(Stage primaryStage) {
Button start = new Button();
Button cancel = new Button();
ProgressBar progress = new ProgressBar(0);
start.setText("Run Task");
start.setOnAction((ActionEvent event) -> {
if (!(service.getState().equals(Worker.State.READY))) {
service.reset();
}
progress.progressProperty().bind(service.progressProperty());
service.start();
});
start.disableProperty().bind(service.runningProperty());
cancel.setText("Cancel Task");
cancel.setOnAction((ActionEvent event) -> {
service.cancel();
progress.progressProperty().unbind();
progress.setProgress(0);
});
cancel.disableProperty().bind(Bindings.not(service.runningProperty()));
VBox root = new VBox(20);
root.setAlignment(Pos.CENTER);
root.getChildren().addAll(start, progress, cancel);
Scene scene = new Scene(root, 300, 250);
primaryStage.setTitle("Cancel Button Demo");
primaryStage.setScene(scene);
primaryStage.show();
}
/**
* #param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
class MyService extends Service<Integer> {
#Override
protected Task<Integer> createTask() {
return new Task<Integer>() {
#Override
protected Integer call() throws Exception {
int iterations;
for (iterations = 0; iterations < 10000000; iterations++) {
if (isCancelled()) {
updateMessage("Cancelled");
break;
}
updateMessage("Iteration " + iterations);
updateProgress(iterations, 10000000);
}
return iterations;
}
};
}
}
}
The above application looks like this: