黑莓手机开发开发tips: 给MainScreen加菜单Menu

如下代码中，实现makeMenu()方法给EclScreen窗口加菜单。

public class EclScreen extends MainScreen
{
RichTextField textField;

public EclScreen()
{
setTitle("Pushed Data Listener");
LabelField label = new LabelField("Pushed Data:");
add(label);

textField = new RichTextField();
add(textField);

}

/******************************************************************************************
* makeMenu(Menu,int) - creates a custom menu to add user define fields
******************************************************************************************/
protected void makeMenu(Menu menu, int instance)
{

MenuItem optionMenu = new MenuItem("Option", 100, 10) {
public void run() {
OptionScreen screen = new OptionScreen();
UiApplication.getUiApplication().pushScreen(screen); //点击菜单Option将弹出新的窗口OptionScreen

}
};
menu.add(optionMenu);
}
}