使用擺動計時器臨時隱藏通知

Question

我使用擺動Timer使webNotification（自定義JFrame）出現在特定時間。我希望用戶可以選擇單擊「隱藏」按鈕來關閉通知，並在一小時後恢復。我怎樣才能做到這一點？

Answer 1

javax.swing.Timer有一個初始延遲;只需將其設置爲60 * 60 * 1000。在調用start()後，您的actionPerformed()將被調用一小時。

附錄：下面是一個按鈕的例子，它隱藏了它在特定時間段內的封閉窗口。

import java.awt.EventQueue; 
import java.awt.GridLayout; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import javax.swing.JButton; 
import javax.swing.JFrame; 
import javax.swing.Timer; 

/** @see http://stackoverflow.com/questions/4373493 */ 
public class TimerFrame extends JFrame { 

    private void display() { 
     this.setTitle("TimerFrame"); 
     this.setLayout(new GridLayout(0, 1)); 
     this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     this.add(new TimerButton("Back in a second", 1000)); 
     this.add(new TimerButton("Back in a minute", 60 * 1000)); 
     this.add(new TimerButton("Back in an hour", 60 * 60 * 1000)); 
     this.pack(); 
     this.setLocationRelativeTo(null); 
     this.setVisible(true); 
    } 

    /** A button that hides it's enclosing Window for delay ms. */ 
    private class TimerButton extends JButton { 

     private final Timer timer; 

     public TimerButton(String text, int delay) { 
      super(text); 
      this.addActionListener(new StartListener()); 
      timer = new Timer(delay, new StopListener()); 
     } 

     private class StartListener implements ActionListener { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       TimerFrame.this.setVisible(false); 
       timer.start(); 
      } 
     } 

     private class StopListener implements ActionListener { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       timer.stop(); 
       TimerFrame.this.setVisible(true); 
      } 
     } 
    } 

    public static void main(String[] args) { 
     EventQueue.invokeLater(new Runnable() { 

      @Override 
      public void run() { 
       new TimerFrame().display(); 
      } 
     }); 
    } 
}