sdksample.java

Move2008 J2ME SDK是Move2008开发团队在平时的开发中研究出的一个非常精简的类库

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import Move2008.UI.Resource;

public class SDKSample extends MIDlet
{	
	public static SDKSample instance = null;
	public static Resource rs = null;
	public static LogoCanvas logoCanvas = null;
	public static MenuCanvas menuCanvas = null;
	
	public static int CVS_LOGO		= 0;	//LOGO Canvas
	public static int CVS_MAINMENU	= 1;	//主菜单Canvas
	
	public static int IMAGES		= 4;	//图片总数
	public static int IMG_LOGO		= 0;
	public static int IMG_FONT1		= 1;
	public static int IMG_FONT2		= 2;
	public static int IMG_FONT3		= 3;
		
	public static int STRINGS		= 4;	//字符串总数
	public static int STR_APPNAME	= 0;
	public static int STR_TITLE		= 1;
	public static int STR_HELP		= 2;
	public static int STR_ABOUT		= 3;
	

    public SDKSample() {
        instance = this;
     	rs = new Resource(IMAGES, STRINGS);
     	
		//加载字符串资源
		rs.setString(SDKSample.STR_APPNAME, "MOVE2008 UI SDK");
		rs.setString(SDKSample.STR_TITLE, "SDK SAMPLE");
		rs.setString(SDKSample.STR_HELP, "Help");
		rs.setString(SDKSample.STR_ABOUT, "Move2008");	     	
    }

    protected void destroyApp(boolean unconditional) {
    }

    protected void pauseApp() {
    }

    protected void startApp() {
		changeCanvas(CVS_LOGO,true);
    }

    public static void exit() {
        instance.destroyApp(true);
        instance.notifyDestroyed();
        instance = null;
    }

	public static void changeCanvas(int canvasId, boolean isCreate)
	{
		switch(canvasId)
		{
			case 0: //LOGO
				if(logoCanvas==null || isCreate)
					logoCanvas = new LogoCanvas();
				Display.getDisplay(instance).setCurrent(logoCanvas);
				break;
	        case 1: //MAINMENU
				if(menuCanvas==null || isCreate)
					menuCanvas = new MenuCanvas();
				Display.getDisplay(instance).setCurrent(menuCanvas);	        	        
				break;
		}
	}

	public static void alert(String title,String str)
	{
		Alert a = new Alert(title,str,null,null);
		a.setTimeout(Alert.FOREVER);
        Display.getDisplay(instance).setCurrent(a);	            
    }   
    
    public static void helpAlert()
    {
    	alert("SDK Help",rs.getString(STR_HELP));    
    }
    
    public static void aboutAlert()
    {
    	alert("Move2008 UI",rs.getString(STR_ABOUT));    
    }
    
}