如何以0.1步延迟进度条中的setProgress直到满

Question

我正在尝试制作一个进度条，它将以 0.1 步为单位设置进度，延迟 1000 毫秒，直到 "full"。

我已经找到了如何延迟一步的解决方案，但无法将其放入 for 循环中，该循环将进度设置为 0.1 步，直到进度等于 1，因此已满。

我需要如何修改下面的解决方案才能实现？

package project;

import javafx.application.Application;
import javafx.concurrent.Task;
import javafx.concurrent.WorkerStateEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.ProgressBar;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class Progress extends Application {

StackPane stack = new StackPane();
Scene scene = new Scene(stack, 400, 800);

// Progress Bar
ProgressBar progressBar = new ProgressBar();

public void start(Stage primaryStage) throws Exception {

    // Progress Bar
    stack.getChildren().add(progressBar);
    progressBar.setTranslateX(0);
    progressBar.setTranslateY(0);

    progressBar.setProgress(0);

    Task<Void> sleeper = new Task<Void>() {
        @Override
        protected Void call() throws Exception {
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
            }
            return null;
        }
    };

    sleeper.setOnSucceeded(new EventHandler<WorkerStateEvent>() {
        @Override
        public void handle(WorkerStateEvent event) {
            progressBar.setProgress(0.1);
        }
    });

    new Thread(sleeper).start();

    primaryStage.setScene(scene);
    primaryStage.setTitle("Title");
    primaryStage.show();

}

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

}

Answer 1

让您的任务执行迭代，并在进行时更新它的进度：

Task<Void> sleeper = new Task<Void>() {
    @Override
    protected Void call() throws Exception {

        final int numIterations = 10 ;
        for (int i = 0 ; i < numIterations ; i++) {
            updateProgress(i, numIterations);
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
            }
        }
        updateProgress(numIterations, numIterations);
        return null;
    }
};

那就把进度条的进度绑定到任务的进度上：

progressBar.progressProperty().bind(sleeper.progressProperty());

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