JavaFX에서 카운트 다운 타이머를 동기화하는 가장 좋은 방법

아이디어는 옳습니다. PauseTransition또는 TimeLine ⁽¹⁾ 과 같은 하나의 애니메이션 도구를 사용 하여 다음 MRE에 설명 된대로 모든 카운터를 업데이트합니다 .

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javafx.animation.PauseTransition;
import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.util.Duration;

public class SyncedCounters extends Application {

    private static final int MAX_COUNT = 100;
    private Map<Label, Integer> counters;
    private VBox countersPane;

    @Override public void start(Stage stage) throws IOException {

        counters = new HashMap<>();
        countersPane = new VBox();
        Button addCounter = new Button("Add Counter");
        addCounter.setOnAction(e->addCounter());
        BorderPane root = new BorderPane(countersPane, null, null, null, addCounter);
        stage.setScene(new Scene(new ScrollPane(root),250,200));
        stage.show();
        update();
    }

    private void update() {

        PauseTransition pause = new PauseTransition(Duration.seconds(1));
        pause.setOnFinished(event ->{
            updateCounters();
            pause.play();
        });
        pause.play();
    }

    private void addCounter() {

        Label label = new Label(String.valueOf(MAX_COUNT));
        label.setAlignment(Pos.CENTER);
        label.setPrefSize(150, 25);
        counters.put(label, MAX_COUNT);
        countersPane.getChildren().add(label);
    }


    private void updateCounters() {
        for(Label l : counters.keySet()){
            int counterValue = counters.get(l);
            if(counterValue > 0 ){
                counterValue--;
                l.setText(String.valueOf(counterValue));
                counters.put(l, counterValue);
            }
        }
    }

    public static void main(String[] args) {
        launch(args);
    }
}

void update() {

    Timeline timeline = new Timeline();
    timeline.setCycleCount(Animation.INDEFINITE);

    KeyFrame keyFrame = new KeyFrame(
            Duration.seconds(1),
            event -> {updateCounters();}
    );

    timeline.stop();
    timeline.getKeyFrames().clear();
    timeline.getKeyFrames().add(keyFrame);
    timeline.play();
}