恢復JFrame閃爍，並使用WindowListener將其設置爲全部內容

Question

我知道已經有很多可用於此主題的線程。我已經訪問過幾乎所有的電子郵件，this one,this one,this one,also this one和this one。但是沒有解決我的問題。
我的問題是不同的在這裏，當我嘗試恢復它閃爍的JFrame，並沒有超出一切。我已經在Ubuntu上運行這個代碼，它在ubuntu上像一個魅力一樣工作。 frame.setAlwaysOnTop(true);在ubuntu上絕對正常。
在Windows中解決這個問題我試圖使用WindowsListener， 但在Windows 7中，它閃爍，並沒有在每個窗口的頂部。我認爲它試圖超越一切，但可能是其他應用比它消失的優先級更高。我該如何解決這個問題？
編輯：
我有兩個線程在這裏一個線程進行身份驗證，如果它的身份驗證它最小化。如果未通過身份驗證，則應始終位於身份驗證的首位。即使用戶通過按Alt鍵切換窗口，它應該在2秒後再次出現。
代碼進行驗證：

public class ScreenLockAndUnlock implements Runnable{ 
    public static JFrame frame; 
    public static boolean working = false; 
    private JTextField punch; 

    public void stop(){ 
     working = false; 
    } 

    public void run(){ 
     try{ 
      frame = new JFrame("Protected"); 
      frame.setContentPane(new JLabel(new ImageIcon("C:\\Users\\four.four-PC\\eclipse-workspace\\optimization\\src\\main\\java\\com\\greycode\\optimization\\finger_PNG6297.png"))); 
      frame.setVisible(true); 
      GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 
      GraphicsDevice gs = ge.getDefaultScreenDevice(); 
      gs.setFullScreenWindow(frame); 
      frame.validate(); 
      frame.setLayout(new BorderLayout()); 
      punch = new JTextField(); 
      frame.add(punch,BorderLayout.SOUTH); 
      punch.requestFocus(); 
      punch.addActionListener(action); 
      }finally{ 
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     } 
    } 
    private void onTop() throws AWTException{ 
     // TODO Auto-generated method stub 
     AlwaysOnTop top = new AlwaysOnTop(); 
     new Thread(top).start(); 
     while(true){ 
      try{ 
       frame.setState(Frame.NORMAL); 
       if(punch.getText().trim()!= null && punch.getText().trim().toLowerCase().equals("true")){ 
        working = true; 
        top.cancel(); 
        frame.setState(JFrame.ICONIFIED); 
        Thread.sleep(10000); 
        top.star(); 
        top = new AlwaysOnTop(); 
        new Thread(top).start(); 
       } 
      }catch(Exception e){ 
       e.printStackTrace(); 
      } 
     } 
    } 
    @SuppressWarnings("serial") 
    Action action = new AbstractAction(){ 
     public void actionPerformed(ActionEvent e){ 
      try{ 
       onTop(); 
      } catch (AWTException e1){ 
       // TODO Auto-generated catch block 
       e1.printStackTrace(); 
      } 
     } 
    }; 
} 

此代碼總是尋找的JFrame是否在頂部或沒有，如果沒有通過認證

public class AlwaysOnTop implements Runnable{ 
    boolean cancelled = false; 
    public void run(){ 
     while(!cancelled){ 
      try{ 
       lookForMinimised(); 
      } catch (InterruptedException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } 
     } 
    } 
    public void cancel(){ 
     this.cancelled = true; 
    } 
    public void star(){ 
     this.cancelled = false; 
    } 
    public void lookForMinimised() throws InterruptedException{ 
     // TODO Auto-generated method stub 
     ScreenLockAndUnlock.frame.addWindowStateListener(new WindowStateListener(){ 
      public void windowStateChanged(WindowEvent e){ 
       // TODO Auto-generated method stub 
       int newState = e.getNewState(); 
       if((newState & Frame.ICONIFIED) == Frame.ICONIFIED){ 
        System.out.println("Frame is minimised"); 
        ScreenLockAndUnlock.frame.setAlwaysOnTop(false); 
        ScreenLockAndUnlock.frame.setAlwaysOnTop(true); 
        ScreenLockAndUnlock.frame.setVisible(true); 
        ScreenLockAndUnlock.frame.toFront(); 
        ScreenLockAndUnlock.frame.requestFocus(); 
        ScreenLockAndUnlock.frame.validate(); 
        ScreenLockAndUnlock.frame.setState(Frame.NORMAL); 
       } 
       else if ((newState & Frame.NORMAL) == Frame.NORMAL){ 
         System.out.println("Waiting for authentication ..."); 
       } 
      } 
     }); 
     Thread.sleep(2000); 
    } 
} 

主要方法：

public class Authenticate{ 
    public static void main(String[] args){ 
     Thread displayScreen = new Thread(new ScreenLockAndUnlock()); 
     displayScreen.start(); 
    } 
} 

Answer 1

請找描述你想要的邏輯功能的代碼。
另請注意，此代碼僅描述了幀還原 - 最小化，線程及其相互作用的功能。
最後，這將是你，誰必須在適當的位置使用相同的需要。

import java.awt.BorderLayout; 
import java.awt.EventQueue; 
import java.awt.Frame; 

import javax.swing.JFrame; 
import javax.swing.JPanel; 
import javax.swing.border.EmptyBorder; 

import javax.swing.JTextField; 
import java.awt.event.KeyAdapter; 
import java.awt.event.KeyEvent; 
import java.awt.event.WindowEvent; 
import java.awt.event.WindowStateListener; 

public class TestClass2 extends JFrame { 

    private JPanel contentPane; 
    private JTextField textField; 
    static boolean isAuthenticationStarted = false; 

    /** 
    * Launch the application. 
    */ 
    public static void main(String[] args) { 
     EventQueue.invokeLater(new Runnable() { 
      public void run() { 
       try { 
        TestClass2 frame = new TestClass2(); 
        frame.setVisible(true); 

        frame.addWindowStateListener(new WindowStateListener() { 
          public void windowStateChanged(WindowEvent e) { 
           // minimized 
           if ((e.getNewState() & Frame.ICONIFIED) == Frame.ICONIFIED){ 
            if (!isAuthenticationStarted) 
            { 
             // Authentication not started yet and window minimized 
             frame.setState(Frame.NORMAL); 
            } 
           } 
//        // maximized 
//        else if ((e.getNewState() & Frame.MAXIMIZED_BOTH) == Frame.MAXIMIZED_BOTH){ 
// 
//        } 
          } 
         }); 

        frame.setAlwaysOnTop(true); 
       } catch (Exception e) { 
        e.printStackTrace(); 
       } 
      } 
     }); 
    } 

    /** 
    * Create the frame. 
    */ 
    public TestClass2() { 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     setBounds(100, 100, 450, 300); 
     contentPane = new JPanel(); 
     contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); 
     setContentPane(contentPane); 
     contentPane.setLayout(new BorderLayout(0, 0)); 

     textField = new JTextField(); 
     textField.addKeyListener(new KeyAdapter() { 
      public void keyReleased(KeyEvent e) { 
       if (e.getKeyCode()==KeyEvent.VK_ENTER) 
       { 
        new Thread() 
        { 
         public void run() 
         { 
          // Start authentication here 
          isAuthenticationStarted = true; 

          // if authentication is success show next jframe 
          // else restore window 
          // reset the flag only when authentication is successful 
          // isAuthenticationStarted = false; 

          // Minimizing frame 
          setState(Frame.ICONIFIED); 

          try { 
           Thread.sleep(3000); 
          } catch (InterruptedException e) { 
           e.printStackTrace(); 
          } 



          // restoring frame 
          setState(Frame.NORMAL); 

         } 
        }.start(); 
       } 
      } 
     });// End listener 


     contentPane.add(textField, BorderLayout.CENTER); 
     textField.setColumns(10); 
    } 
} 

希望這會對你有所幫助。 :-)