如何使用 JavaFX 创建进度条?
进度条是一个事件(一系列步骤)推进的指示器。通过实例化 javafx.scene.control.ProgressBar 类可以创建一个进度条。
示例
以下示例演示了 ProgressBar 的创建。
import javafx.application.Application; import javafx.geometry.Insets; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.control.ProgressBar; import javafx.scene.control.ProgressIndicator; import javafx.scene.layout.HBox; import javafx.scene.paint.Color; import javafx.stage.Stage; public class ProgressBarExample extends Application { public void start(Stage stage) { //Creating a progress bar ProgressBar progress = new ProgressBar(); //Setting value to the progress bar progress.setProgress(0.5); //Creating a progress indicator ProgressIndicator indicator = new ProgressIndicator(0.6); //Setting the size of the progress bar progress.setPrefSize(300, 30); //Creating a hbox to hold the progress bar and progress indicator HBox hbox = new HBox(20); hbox.setSpacing(5); hbox.setPadding(new Insets(75, 150, 50, 60)); hbox.getChildren().addAll(progress, indicator); //Setting the stage Group root = new Group(hbox); Scene scene = new Scene(root, 595, 200, Color.BEIGE); stage.setTitle("Progress Bar Example"); stage.setScene(scene); stage.show(); } public static void main(String args[]){ launch(args); } }
输出
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