如何正确使用JavaFX MediaPlayer？ [英] How to use JavaFX MediaPlayer correctly?

问题描述

我正在编写一个简单的游戏并尝试播放声音，但是当我创建它抛出的Media对象时，我无法使其工作 IllegalArgumentException 。我不是一个Java编码器，任何帮助将不胜感激。
以下是示例代码：

I'm writing a simple game and trying to play sounds but I can't get it to work when I create the Media object it throws IllegalArgumentException. I'm not much of a Java coder and any help will be appreciated. Here is a sample code:

import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;

public class Main{
    public static void main(String[] args) {

        Media pick = new Media("put.mp3"); //throws here
        MediaPlayer player = new MediaPlayer(pick);
        player.play();
    }
}

显然put.mp3存在且位于正确的目录，我检查路径使用： System.out.println（System.getProperty（user.dir））;

Obviously "put.mp3" exists and located in the correct directory, I checked the path using: System.out.println(System.getProperty("user.dir"));

我在这里做错了什么？

推荐答案

问题是因为你试图运行JavaFX场景图控件在之外的JavaFX应用程序线程。

The problem is because you are trying to run JavaFX scene graph control outside of JavaFX Application thread.

在JavaFX应用程序线程中运行所有JavaFX场景图节点。 / em>

Run all JavaFX scene graph nodes inside the JavaFX application thread.

您可以通过扩展JavaFX Application 类并覆盖 start（） method。

You can start a JavaFX thread by extending JavaFX Application class and overriding the start() method.

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) {

        Media pick = new Media("put.mp3"); // replace this with your own audio file
        MediaPlayer player = new MediaPlayer(pick);

        // Add a mediaView, to display the media. Its necessary !
        // This mediaView is added to a Pane
        MediaView mediaView = new MediaView(player);

        // Add to scene
        Group root = new Group(mediaView);
        Scene scene = new Scene(root, 500, 200);

        // Show the stage
        primaryStage.setTitle("Media Player");
        primaryStage.setScene(scene);
        primaryStage.show();

        // Play the media once the stage is shown
        player.play();
    }

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

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