Question

我正在尝试播放以字符串形式提供的MRL列表中的视频。

问题是当我运行课程时，一个面板列表显示带有播放按钮和黑屏，但只有最后一个面板播放一个视频，视频列表中，以及当其他面板的播放按钮是点击，最后一个视频再次重播。

我想要实现的是，当我上课时，播放一个视频，当我点击另一个视频的播放按钮时，当前视频停止并移动到下一个视频。

我不知道我哪里出错了。

至于vlcj，我试过用户其他布局，但视频仅在使用BorderLayout时显示，这限制了我的选项

这是我的代码：

public class MediaPlayer2 extends JPanel {

//Declares our media player component
private EmbeddedMediaPlayerComponent mediaplayer;
private final String vlcpath = "C:\\Program Files (x86)\\VideoLAN\\VLC";
private JPanel video_pnl, control_pnl;
private JButton play_btn;
ArrayList<String> file_location;

public MediaPlayer2(ArrayList<String> file_location) {
    this.file_location = file_location;
    NativeLibrary.addSearchPath(RuntimeUtil.getLibVlcLibraryName(), vlcpath);

    int increment = 0;
    while (increment < file_location.size()) {
        for (int i = 0; i < 1; i++) {
            video_pnl = new JPanel();
            video_pnl.setLayout(new BorderLayout());
            play_btn = new JButton("Play");
            mediaplayer = new EmbeddedMediaPlayerComponent();
            control_pnl = new JPanel();
            control_pnl.setLayout(new FlowLayout(FlowLayout.CENTER));
            play_btn.setActionCommand("play");
            video_pnl.add(mediaplayer, BorderLayout.CENTER);
            control_pnl.add(play_btn);
            video_pnl.add(control_pnl, BorderLayout.SOUTH);

            Handler handler = new Handler();
            play_btn.addActionListener(handler);
        }
        add(video_pnl);
        increment++;
    }
}

private class Handler implements ActionListener {

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getActionCommand().equals("play")) {
            play();
        }
    }
}

public void play() {
    for (int i = 0; i < file_location.size(); i++) {
        mediaplayer.getMediaPlayer().playMedia(file_location.get(i));
    }
}

public static void main(String[] args) {
    //Declare and initialize local variables
    ArrayList<String> file_location = new ArrayList<>();
    file_location.add("C:\\\\Users\\\\goldAnthony\\\\Desktop\\\\Videos\\\\Whistle.mp4");
    file_location.add("C:\\\\Users\\\\goldAnthony\\\\Desktop\\\\Videos\\\\Beyonce_Hello.mp4");
    file_location.add("C:\\Users\\goldAnthony\\Desktop\\Videos\\HansRosling_2012S_480p.mp4");
    file_location.add("C:\\Users\\goldAnthony\\Desktop\\Videos\\oow2010_2.mp4");
    file_location.add("C:\\Users\\goldAnthony\\Desktop\\Videos\\The_Economic_Environment.mp4");

    //creates instances of the VlcPlayer object, pass the mediaPath and invokes the method "run"
    MediaPlayer2 mediaplayer = new MediaPlayer2(file_location);
    JFrame ourframe = new JFrame();
    ourframe.setContentPane(mediaplayer);
    ourframe.setLayout(new GridLayout(5, 1));
    ourframe.setSize(300, 560);
    ourframe.setVisible(true);
    mediaplayer.play();
    ourframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

}

从vlcj播放器列表中播放视频

0 个答案: