我如何从LWUIT组件处置对话框 [英] How can i Dispose Dialog box From LWUIT Component
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问题描述
我正在使用Midlet移动应用程序LWUIT开发一个项目.当我按数字键时,将打开一个对话框.当我按#,0,*键时,对话框应该关闭.
我正在使用Dialog.dispose()方法关闭对话框.但这是行不通的.下面是我的代码.谁能告诉我代码中的问题是什么?
I am developing one project using LWUIT, Midlet mobile Application. when I press number keys a dialog box will open. when i press the keys #,0,* Dialog should be close.
I am using Dialog.dispose() method to close dialog. But it is not working. Below is my Code. Can anyone tell me what is the problem in my code?
import com.sun.lwuit.Dialog;
import com.sun.lwuit.Dialog.*;
import com.sun.lwuit.events.ActionEvent;
import com.sun.lwuit.events.ActionListener;
import com.sun.lwuit.plaf.Border.*;
public class javaForm extends Component implements ActionListener
{
Dialog d;
javaForm()
{
d=new Dialog();
}
public void keyPressed(int key)
{
System.out.println("Key pressed :"+key);
switch(key)
{
case 48:
d.show();
break;
case 52:
d.dispose();
break;
default:
break;
}
}
public void actionPerformed(ActionEvent ae)
{
throw new UnsupportedOperationException("Not supported yet.");
}
}
推荐答案
,您需要更新GUI.我不知道有什么可用的,但是redraw()
,repaint()
和refresh()
是为此常用的命令.
you need to update the GUI. I don''t know what is available for you butredraw()
,repaint()
andrefresh()
are common used commands for this.
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