使用Java 13中的新的JavaFX线程模型来实现UI界面的异步更新

import javafx.application.Application;
import javafx.concurrent.Task;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class AsyncUIUpdateExample extends Application {

    private Label countLabel;

    @Override
    public void start(Stage primaryStage) {
        countLabel = new Label("0");

        Button startButton = new Button("Start");
        startButton.setOnAction(event -> startAsyncTask());

        VBox root = new VBox(countLabel, startButton);
        Scene scene = new Scene(root, 200, 100);

        primaryStage.setTitle("Async UI Update Example");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    private void startAsyncTask() {
        Task<Void> task = new Task<Void>() {
            @Override
            protected Void call() throws Exception {
                // 模拟耗时的任务
                for (int i = 0; i < 10; i++) {
                    Thread.sleep(1000);
                    int count = i + 1;

                    // 使用Platform.runLater()方法来在JavaFX线程中更新UI界面
                    javafx.application.Platform.runLater(() -> {
                        countLabel.setText(String.valueOf(count));
                    });
                }
                return null;
            }
        };

        new Thread(task).start();
    }

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