Java运用jnavlcj实现音乐和视频的播放器1主界面设计

　　白雨青工作站发文地址：Java运用jna、vlcj实现音乐和视频的播放器1-主界面设计-白雨青工作站
　　一、播放器主框架  public class MainFrame { 	public JFrame frame; 	public int width = 100;     public int height = 350; 	public MainFrame(){ 		frame = new JFrame(); 		frame.setResizable(false);         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);         frame.setSize(height,width);         frame.setLocationRelativeTo(null);         frame.setLayout(null);         // 去掉窗口的装饰          frame.setUndecorated(true);         //采用指定的窗口装饰风格         frame.getRootPane().setWindowDecorationStyle(JRootPane.NONE);  		//设置窗体圆角，最后两个参数分别为圆角的宽度、高度数值，一般这两个数值都是一样的 		AWTUtilities.setWindowShape(frame, 				new RoundRectangle2D.Double(0.0D, 0.0D, frame.getWidth(), frame.getHeight(), 20.0D, 20.0D)); 		//设置背景颜色，记住一定要修改frame.getContentPane()的颜色，因为我们看到的都是这个的颜色而并不是frame的颜色         frame.getContentPane().setBackground(Color.LIGHT_GRAY);                  frame.setVisible(true); 	} }
　　效果：
　　二、绘制自定义窗口，添加最小化和关闭按钮
　　1、自定义一个button类继承JButton  import javax.swing.JButton;   public class DIYButton extends JButton{   	public DIYButton() { 		super(); 		// TODO Auto-generated constructor stub 		// 不绘制边框         setBorderPainted(false);         //按钮设置为透明，这样就不会挡着后面的背景         setContentAreaFilled(false); 	} }
　　2、自定义一个panel，里面存放logo，窗口名称，最小化，关闭按钮  import java.awt.Color; import java.awt.event.ActionEvent; import java.awt.event.ActionListener;   import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel;   public class MainFrameBar extends JPanel implements ActionListener{ 	 	private JLabel titleLabel; 	private DIYButton win_btn_logo; 	private DIYButton win_btn_min; 	private DIYButton win_btn_close; 	 	public MainFrameBar(){ 		win_btn_logo = new DIYButton(); 		win_btn_logo.setBounds(10,5,16,16); 		win_btn_logo.setIcon(new ImageIcon(＂icon/win_btn_logo.png＂)); 		 		titleLabel = new JLabel(); 		titleLabel.setBounds(28,3,80,20); 			 		win_btn_min = new DIYButton(); 		win_btn_min.setBounds(300,5,16,16); 		win_btn_min.setIcon(new ImageIcon(＂icon/win_btn_min.png＂)); 		         win_btn_close = new DIYButton();         win_btn_close.setBounds(320,5,16,16);         win_btn_close.setIcon(new ImageIcon(＂icon/win_btn_close.png＂));	          		setBackground(Color.gray); 	    setLayout(null); 	     	    add(titleLabel); 	    add(win_btn_logo); 	    add(win_btn_min); 	    add(win_btn_close); 	     	    win_btn_min.setActionCommand(＂min＂);  	    win_btn_close.setActionCommand(＂close＂);  	     	    win_btn_min.addActionListener(this); 	    win_btn_close.addActionListener(this); 	} 	public void actionPerformed(ActionEvent e) { 		if(e.getActionCommand() == ＂min＂)         {         	MainFrame.getFrame().setExtendedState(JFrame.ICONIFIED);          }             if(e.getActionCommand() == ＂close＂)         {             System.exit(0);         } 	} 	public JLabel getTitleLabel() { 		return titleLabel; 	} 	public void setTitleLabel(JLabel titleLabel) { 		this.titleLabel = titleLabel; 	} 	public DIYButton getWin_btn_logo() { 		return win_btn_logo; 	} 	public void setWin_btn_logo(DIYButton winBtnLogo) { 		win_btn_logo = winBtnLogo; 	} 	public DIYButton getWin_btn_min() { 		return win_btn_min; 	} 	public void setWin_btn_min(DIYButton winBtnMin) { 		win_btn_min = winBtnMin; 	} 	public DIYButton getWin_btn_close() { 		return win_btn_close; 	} 	public void setWin_btn_close(DIYButton winBtnClose) { 		win_btn_close = winBtnClose; 	} }
　　效果：
　　三、绘制中间区域
　　1、自定义播放器进度条  import java.awt.Color; import java.awt.Font;   import javax.swing.JLabel; import javax.swing.JPanel;   /*  * 播放器进度条  * */ public class Rate extends JPanel { 	private JLabel rate;   	public Rate() { 		super(); 		// TODO Auto-generated constructor stub 		setLayout(null);         setBackground(new Color(255,255,255));         rate = new JLabel(＂＂, JLabel.CENTER);         rate.setForeground(new Color(255,255,255));         rate.setVisible(true);         rate.setFont(new Font(Font.DIALOG, 0, 25));         add(rate);         setVisible(true); 	} }
　　2、进度条风格  import javax.swing.*; import javax.swing.plaf.basic.BasicSliderUI; import java.awt.*;   public class SliderStyle extends BasicSliderUI {       public SliderStyle(JSlider jSlider) {         super(jSlider);     }       // 重绘游标       public void paintThumb(Graphics g) {         Graphics2D g2d = (Graphics2D) g;         BasicStroke stroke = new BasicStroke(3, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);         g2d.setStroke(stroke);         g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1));         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);         GradientPaint gp = new GradientPaint(0, 0, new Color(255,255,255), 0, thumbRect.height, new Color(255,255,255));         g2d.setPaint(gp);         g2d.fillOval(thumbRect.x, thumbRect.y + 5, 10, 10);         BasicStroke stroke1 = new BasicStroke(3, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);         g2d.setStroke(stroke1);         g2d.drawLine(0, thumbRect.height / 2, thumbRect.x + 8, thumbRect.height / 2);     }       // 重绘进度条       public void paintTrack(Graphics g) {         Graphics2D g2d = (Graphics2D) g;         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);// 设定渐变         g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.3f));         g2d.setPaint(new GradientPaint(0, 0, new Color(200, 200, 200), 0, trackRect.height, new Color(255, 255, 255), true));         g2d.setStroke(new BasicStroke(3, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));         g2d.drawLine(8, trackRect.height / 2 + 1, trackRect.width + 8, trackRect.height / 2 + 1);     } }
　　3、自定义一个panel，存放上一首、下一首、播放暂停按钮、当前时间、总时间、进度条、歌曲名称  import java.awt.Color; import java.awt.Cursor; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent;   import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JSlider;   import com.byq.player.ui.component.Rate; import com.byq.player.ui.style.SliderStyle;   public class MainFrameContain extends JPanel implements ActionListener{ 	 	private DIYButton win_btn_prev; 	private DIYButton win_btn_play; 	private DIYButton win_btn_next; 	private Rate rate; // 进度条 	private JLabel mediaName; 	private JLabel currentTime;     private JLabel totalTime;     private JSlider playProcessSlider; 	private int len = 10; 	 	public MainFrameContain(){ 		win_btn_prev = new DIYButton(); 		win_btn_prev.setBounds(len,3,40,40); 		win_btn_prev.setIcon(new ImageIcon(＂icon/win_btn_prev.png＂)); 		win_btn_prev.setActionCommand(＂prev＂);  		add(win_btn_prev); 		 		win_btn_play = new DIYButton(); 		win_btn_play.setBounds(len+50,3,40,40); 		win_btn_play.setIcon(new ImageIcon(＂icon/win_btn_play.png＂)); 		win_btn_play.setActionCommand(＂play＂);  		add(win_btn_play); 		 		win_btn_next = new DIYButton(); 		win_btn_next.setBounds(len+100,3,40,40); 		win_btn_next.setIcon(new ImageIcon(＂icon/win_btn_next.png＂)); 		win_btn_next.setActionCommand(＂next＂);  		add(win_btn_next); 		 		//歌名 		mediaName = new JLabel(); 		mediaName.setBounds(len+165,-5, 300, 30); //		mediaName.setForeground(new Color(255,255,255));         add(mediaName); 		 		rate = new Rate(); 		rate.setBounds(len+200,30,100,3); 		add(rate); 		setBackground(Color.gray); 	    setLayout(null); 	     	    // 当前时间 	    currentTime = new JLabel(＂00:00＂); 	    currentTime.setBounds(len+165,15, 50, 30); 	    currentTime.setForeground(new Color(255,255,255));         add(currentTime); 	             // 结束时间         totalTime = new JLabel(＂00:00＂);         totalTime.setBounds(len+305,15, 50, 30);         totalTime.setForeground(new Color(255,255,255));         add(totalTime);                  playProcessSlider = new JSlider(0,100,0);         playProcessSlider.setBounds(len+200,20,100,24);         playProcessSlider.setUI(new SliderStyle(playProcessSlider));         playProcessSlider.setBackground(new Color(125,125,125));         playProcessSlider.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));         add(playProcessSlider); 	     	    win_btn_prev.addActionListener(this); 	    win_btn_play.addActionListener(this); 	    win_btn_next.addActionListener(this);   	}   	public void actionPerformed(ActionEvent e) { 		// TODO Auto-generated method stub 		if(e.getActionCommand() == ＂prev＂)         { 			System.out.println(＂prev＂);			         } 		if(e.getActionCommand() == ＂play＂)         { 			System.out.println(＂play＂); 			win_btn_play.setIcon(new ImageIcon(＂icon/win_btn_pause.png＂)); 			win_btn_play.setActionCommand(＂pause＂);          } 		if(e.getActionCommand() == ＂next＂)         { 			System.out.println(＂next＂);         } 		if(e.getActionCommand() == ＂pause＂)         { 			System.out.println(＂pause＂); 			win_btn_play.setIcon(new ImageIcon(＂icon/win_btn_play.png＂)); 			win_btn_play.setActionCommand(＂play＂);          } 	} }
　　效果：
　　四、绘制下面区域，菜单列表按钮，声音控制条
　　1、自定义音量控制条  import java.awt.Color; import java.awt.Font;   import javax.swing.JLabel; import javax.swing.JPanel;   /*  * 声音进度条  * */ public class Volume extends JPanel { 	private JLabel volume;   	public Volume() { 		super(); 		// TODO Auto-generated constructor stub 		setLayout(null);         setBackground(new Color(255,255,255));         volume = new JLabel(＂＂, JLabel.CENTER);         volume.setForeground(new Color(255,255,255));         volume.setVisible(true);         volume.setFont(new Font(Font.DIALOG, 0, 25));         add(volume);         setVisible(true); 	} }
　　2、自定义一个panel，存放音量控制条和菜单按钮  import java.awt.Color; import java.awt.Cursor; import java.awt.event.ActionEvent; import java.awt.event.ActionListener;   import javax.swing.ImageIcon; import javax.swing.JPanel; import javax.swing.JSlider;   import com.byq.player.ui.component.Volume; import com.byq.player.ui.style.SliderStyle;   public class MainFrameBottom extends JPanel implements ActionListener{   	private DIYButton win_btn_list; 	private DIYButton win_btn_volume; 	private Volume volume; 	private JSlider volumeSlider; 	private int len = 10; 	 	public MainFrameBottom() { 		// TODO Auto-generated constructor stub 		win_btn_list = new DIYButton(); 		win_btn_list.setBounds(len,5,16,16); 		win_btn_list.setIcon(new ImageIcon(＂icon/win_btn_list.png＂)); 		win_btn_list.setActionCommand(＂listOff＂);  		add(win_btn_list); 		 		win_btn_volume = new DIYButton(); 		win_btn_volume.setBounds(len+180,5,16,16); 		win_btn_volume.setIcon(new ImageIcon(＂icon/win_btn_volumeOn.png＂)); 		win_btn_volume.setActionCommand(＂volumeOn＂);  		add(win_btn_volume); 		 		volume = new Volume(); 		volume.setBounds(len+200,12,100,3); 		add(volume); 		 		volumeSlider = new JSlider(0,100,0); 		volumeSlider.setValue(20);//设置默认音量100 		volumeSlider.setBounds(len+200,3,100,24); 		volumeSlider.setUI(new SliderStyle(volumeSlider)); 		volumeSlider.setBackground(new Color(125,125,125)); 		volumeSlider.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));         add(volumeSlider); 		 		setBackground(Color.gray); 	    setLayout(null); 	}   	public void actionPerformed(ActionEvent e) { 		// TODO Auto-generated method stub 		 	}   }
　　效果：