javafx setFullScreen（），阶段未覆盖所有屏幕

Question

哦！ 我正在用javafx创建一个媒体播放器，而setFullScreen方法却遇到了一个烦人的问题：当我双击创建它时，视频并不能覆盖我的所有监视器，但是在屏幕的底部有一个可见的我的场景构建者布局的一部分 look at the bottom part, there is a part of the layout!

这是我的代码：

主要

package sample;

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.input.MouseEvent;
import javafx.stage.Stage;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception{
        Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));
        Scene scene = new Scene(root);
        primaryStage.setTitle("Hello World");

        scene.setOnMouseClicked(new EventHandler<MouseEvent>() {
            @Override
            public void handle(MouseEvent doubleClicked) {
                if(doubleClicked.getClickCount() == 2) {
                    primaryStage.setFullScreen(true);
                }
            }
        });
        primaryStage.setScene(scene);
        primaryStage.show();
    }


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

控制器

package sample;

import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.beans.binding.Bindings;
import javafx.beans.property.DoubleProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.Slider;
import javafx.scene.input.MouseEvent;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.media.MediaView;
import javafx.stage.FileChooser;

import javafx.event.ActionEvent;
import javafx.util.Duration;

import java.io.File;
import java.net.URL;
import java.util.ResourceBundle;
import java.util.concurrent.TimeUnit;

public class Controller implements Initializable {

    private String filepath;

    private MediaPlayer mediaPlayer;
    @FXML private MediaView mediaView;
    @FXML private Slider slider;

    @FXML
    private void chooseFile(ActionEvent event){
        FileChooser fileChooser = new FileChooser();
        FileChooser.ExtensionFilter filter = new FileChooser.ExtensionFilter("Select a file (mp4)", "*.mp4");  //checking the extension of the file
        fileChooser.getExtensionFilters().add(filter);
        File file = fileChooser.showOpenDialog(null); //opening the owner's window to choose the file from his pc
        filepath = file.toURI().toString(); //taking the filepath

        if(filepath != null) {
            Media media = new Media(filepath);
            mediaPlayer = new MediaPlayer(media);
            mediaView.setMediaPlayer(mediaPlayer);

            DoubleProperty width = mediaView.fitWidthProperty();
            DoubleProperty height = mediaView.fitHeightProperty();
            width.bind(Bindings.selectDouble(mediaView.sceneProperty(), "width"));
            height.bind(Bindings.selectDouble(mediaView.sceneProperty(), "height"));

            //Slider
            mediaPlayer.currentTimeProperty().addListener(new ChangeListener<Duration>() {
                @Override
                public void changed(ObservableValue<? extends Duration> observable, Duration oldValue, Duration newValue) {
                    slider.setValue(newValue.toSeconds());
                }
            });
            slider.setOnMouseClicked(new EventHandler<MouseEvent>() {
                @Override
                public void handle(MouseEvent event) {
                    mediaPlayer.seek(Duration.seconds(slider.getValue()));
                }
            });
            //sync slider's length with the video's length
            slider.maxProperty().bind(Bindings.createDoubleBinding(
                    () -> mediaPlayer.getTotalDuration().toSeconds(), mediaPlayer.totalDurationProperty()));
        }

    }

    @FXML
    private void play(ActionEvent event){
        mediaPlayer.play();
    }
    @FXML
    private void pause(ActionEvent event){
        mediaPlayer.pause();
    }

    //mediaPlayer.setRate(1.5) sets the speed of the video

    @Override
    public void initialize(URL location, ResourceBundle resources) {

    }
}

FXML

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Slider?>
<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.StackPane?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.media.MediaView?>

<BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="600.0" prefWidth="900.0" xmlns="http://javafx.com/javafx/10.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
   <bottom>
      <VBox alignment="CENTER" prefHeight="57.0" prefWidth="900.0" BorderPane.alignment="CENTER">
         <children>
            <HBox alignment="CENTER_LEFT" prefHeight="58.0" prefWidth="900.0">
               <children>
                  <Button mnemonicParsing="false" onAction="#chooseFile" prefHeight="30.0" prefWidth="30.0" style="-fx-background-radius: 5em;" text="+">
                     <padding>
                        <Insets right="1.0" />
                     </padding>
                     <HBox.margin>
                        <Insets left="100.0" right="500.0" />
                     </HBox.margin>
                  </Button>
                  <Button fx:id="playButton" mnemonicParsing="false" onAction="#play" prefHeight="30.0" prefWidth="30.0" style="-fx-background-radius: 5em; -fx-background-image: url('file:C:/Users/Maxy/Desktop/MyPrograms/videoPlayer/src/sample/play.png'); -fx-background-position: center; -fx-background-repeat: no-repeat; -fx-background-size: 20px;">
                     <padding>
                        <Insets right="1.0" />
                     </padding>
                  </Button>
                  <Button fx:id="pauseButton" mnemonicParsing="false" onAction="#pause" prefHeight="30.0" prefWidth="30.0" style="-fx-background-radius: 5em;" text="||">
                     <HBox.margin>
                        <Insets left="10.0" />
                     </HBox.margin>
                  </Button>
               </children>
            </HBox>
         </children>
      </VBox>
   </bottom>
   <center>
      <StackPane prefHeight="38.0" prefWidth="900.0" BorderPane.alignment="CENTER">
         <children>
            <MediaView fx:id="mediaView" fitHeight="200.0" fitWidth="200.0" />
            <Slider fx:id="slider" StackPane.alignment="BOTTOM_CENTER" />
         </children>
      </StackPane>
   </center>
</BorderPane>