- 注册时间
- 2007-9-10
- 最后登录
- 1970-1-1
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/*
@作者:王春平
@功能:GroupChoice演示程序
@http://wcp.fh668.com万春IT技术开发网
*/
package screen;
import javax.microedition.lcdui.*;
public class GroupChoiceTest extends Form implements CommandListener{
private Display display;
private Displayable parent;
private Command ok,back,select;
private ChoiceGroup cg;
private Form form;
public GroupChoiceTest(Display d,Displayable p){
super("ChoiceGroup演示程序");
display=d;
parent=p;
back=new Command("返回菜单",Command.BACK,1);
ok=new Command("开始演示",Command.SCREEN,2);
select=new Command("选择",Command.SCREEN,3);
cg=new ChoiceGroup("请选择以下书:",ChoiceGroup.EXCLUSIVE);
int selected=cg.append("《三国演义》",null);
cg.append("《西游记》",null);
cg.append("《水浒传》",null);
cg.append("《红楼梦》",null);
cg.setSelectedIndex(selected,true);
addCommand(back);
addCommand(ok);
setCommandListener(this);
}
public void commandAction(Command action,Displayable dpa){
if(action==back){
display.setCurrent(parent);
}
else if(action==ok){
append(cg);
addCommand(select);
removeCommand(ok);
}
else if(action==select){
cg.setLabel("您选择了:"+cg.getString(cg.getSelectedIndex()));
}
}
} |
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