빠른 이미지/프레임 변경 (20ms 동안 표시)

Question

20ms 동안 표시되는 이미지를 따라 투명한 화면을 1000ms 동안 보여주는 프로그램을 만들려고합니다. 그것은 루프 (1000m s -> 20ms -> 1000ms -> 20ms -> ....)에서 계속되어야합니다.

이미지를 표시하는 데 시간이 너무 오래 걸리므로 화면에 이미지가 표시 될 때 볼 수 있습니다.

더 나은 성능을 얻을 수있는 방법이 있습니까? 여기

코드입니다 :이 빨리 깜박 경우

import java.awt.*; 
import javax.swing.*; 
import static java.awt.GraphicsDevice.WindowTranslucency.*; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import javax.swing.Timer; 
import java.util.TimerTask; 

import java.util.concurrent.Callable; 
import java.util.concurrent.ExecutorService; 
import java.util.concurrent.Executors; 
import java.util.concurrent.Future; 
import java.util.concurrent.TimeUnit; 
import java.util.concurrent.TimeoutException; 


public class SubPrimingJava extends JFrame { 
    public SubPrimingJava() { 
     super("GradientTranslucentWindow"); 

     setBackground(new Color(0,0,0,0)); 
     Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); 
     setBounds(0,0,screenSize.width+20, screenSize.height+200); 
     //setLocationRelativeTo(null); 
     setLocation(-10, -100); 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

     JPanel panel = new JPanel() { 
      @Override 
      protected void paintComponent(Graphics g) { 
       if (g instanceof Graphics2D) { 
        final int R = 240; 
        final int G = 240; 
        final int B = 240; 

        Paint p = 
         new GradientPaint(0.0f, 0.0f, new Color(R, G, B, 0), 
          0.0f, getHeight(), new Color(R, G, B, 0), true); 
        Graphics2D g2d = (Graphics2D)g; 
        g2d.setPaint(p); 
        g2d.fillRect(0, 0, getWidth(), getHeight()); 
       } 
      } 
     }; 
     setContentPane(panel); 
     setLayout(new GridBagLayout()); 




    } 

    public static void main(String[] args) { 
     // Determine what the GraphicsDevice can support. 
     GraphicsEnvironment ge = 
      GraphicsEnvironment.getLocalGraphicsEnvironment(); 
     GraphicsDevice gd = ge.getDefaultScreenDevice(); 
     boolean isPerPixelTranslucencySupported = 
      gd.isWindowTranslucencySupported(PERPIXEL_TRANSLUCENT); 

     //If translucent windows aren't supported, exit. 
     if (!isPerPixelTranslucencySupported) { 
      System.out.println(
       "Per-pixel translucency is not supported"); 
       System.exit(0); 
     } 

     JFrame.setDefaultLookAndFeelDecorated(true); 

     // Create the GUI on the event-dispatching thread 
     SwingUtilities.invokeLater(new Runnable() { 

      @Override 
      public void run() { 
       SubPrimingJava gtw = new 
        SubPrimingJava(); 

       // Display the window. 
       gtw.setVisible(true); 
       ImageIcon icon = new ImageIcon("test.png"); 
       JLabel label = new JLabel(icon); 
       gtw.add(label); 
       gtw.setOpacity(0); 

       Timer timer = new Timer(1000, new ActionListener() { 
        @Override 
        public void actionPerformed(ActionEvent e) { 

         gtw.setOpacity(1); 
         Timer t2 = new Timer(1, new ActionListener() { 
          @Override 
          public void actionPerformed(ActionEvent e) { 
           gtw.setOpacity(0); 
          } 
         }); 
         t2.start(); 
         t2.setRepeats(false); 
        } 
       }); 
       timer.setRepeats(true); 
       timer.start(); 
      } 
     }); 
    } 
} 

Answer 1

이 몰라,하지만 모두 내가 가지고 올 수있는 다음을 표시

Timer timer = new Timer(1000, new ActionListener() { 
    @Override 
    public void actionPerformed(ActionEvent e) { 

     gtw.setOpacity(1); 
     label.paintImmediately(label.getBounds()); 

     gtw.setOpacity(0); 
     label.paintImmediately(label.getBounds()); 
    } 
}); 
timer.setRepeats(true); 
timer.start();