自动移动窗口和我的节目一个小问题:我想在时间 自动移动窗口我有一个代码:Java的如何在JFrame中
package simpleFrame;
import java.awt.*;
import java.util.TimerTask;
import javax.swing.*;
public class Trololo
{
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
JFrame frame = new SizedFrame();
frame.setUndecorated(false);
frame.setTitle("SizedFrame");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
System.out.println("About to schedule task.");
new ReminderBeep(5);
System.out.println("Task scheduled.");
}
});
}
}
class SizedFrame extends JFrame
{
public SizedFrame()
{
Toolkit kit = Toolkit.getDefaultToolkit();
Dimension screenSize = kit.getScreenSize();
int screenHeight = screenSize.height;
int screenWidth = screenSize.width;
setSize(screenWidth/2, screenHeight/2);
setBounds(500,500,screenWidth/2,screenHeight/2);
}
}
class ReminderBeep {
Toolkit toolkit;
java.util.Timer timer;
public ReminderBeep(int seconds) {
toolkit = Toolkit.getDefaultToolkit();
timer = new java.util.Timer();
timer.schedule(new RemindTask(), seconds * 1000);
}
class RemindTask extends TimerTask {
SizedFrame window = new SizedFrame();
public void run() {
window.setBounds(900,900,500,600);
toolkit.beep();
System.out.println("ok");
}
}}
我有工作的计时器:它在命令提示符中显示“ok”,但窗口不移动:/如何获取作品?
使用'javax.swing.Timer'处理摇摆任务如移动框架。另外,当你调整边界时,你的层次被失效。从['invalidate()'](http://docs.oracle.com/javase/7/docs/api/java/awt/Component.html#invalidate())的文档:*此方法在任何与布局相关的信息更改(例如,设置组件边界或将组件添加到容器)*。您必须在设置组件边界后重新验证()。 – 2014-10-27 17:01:23