www.pudn.com > code.rar > TurboMidlet.java

package com.j2medev.netbeans; 
 
import java.io.ByteArrayOutputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import javax.microedition.midlet.*; 
import javax.microedition.lcdui.*; 
 
public class TurboMidlet extends MIDlet implements CommandListener{ 
     
    private Display display = null; 
    private Form mainForm = null; 
    public static final Command exitCommand = new Command("退出",Command.OK, 1); 
     
    //startApp()方法是程序的入口，相当于java应用程序中的main()方法 
    public void startApp() { 
        if(display == null){ 
            display = Display.getDisplay(this); 
        } 
        mainForm = new Form("TurboMIDlet"); 
        Image img = getImage("JavaPowered-8.png"); 
        mainForm.append(img); 
        String text = ""; 
        try{ 
            text = getText("j2medev.txt"); 
        }catch(IOException ex){ 
            text = "读取文本出错"; 
        } 
        mainForm.append("\n"+text); 
        mainForm.addCommand(exitCommand); 
        mainForm.setCommandListener(this); 
        //将mainForm设置为手机屏幕的当前显示对象 
        display.setCurrent(mainForm); 
    } 
     
    private Image getImage(String name){ 
        Image img = null; 
        try{ 
            //读取images目录下的图片 
            img = Image.createImage("/images/"+name); 
        }catch(IOException ex){ 
            ex.printStackTrace(); 
        } 
        return img; 
    } 
     
    private String getText(String name) throws IOException{ 
         
        //将资源文件，例如图片和文本，与java流关联的最好方法 
        InputStream is = getClass().getResourceAsStream("/text/"+name); 
        if(is != null){ 
            ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
            int ch = 0; 
            //将文本文件的内容写入到baos开辟的内存中 
            while((ch = is.read()) != -1){ 
                baos.write(ch); 
            } 
            //返回文本文件内容的字节数组 
            byte[] text = baos.toByteArray(); 
            baos.close(); 
            //由于包含中文，所以编码转换为UTF-8 
            return new String(text,"UTF-8"); 
        }else{ 
            return null; 
        } 
         
    } 
    public void pauseApp() { 
        //在本例中不做任何处理 
    } 
     
    public void destroyApp(boolean unconditional) { 
        //在本例中不做任何处理 
    } 
     
    public void commandAction(Command cmd,Displayable displayable){ 
        if(cmd == exitCommand){ 
            destroyApp(false); 
            notifyDestroyed(); 
        } 
    } 
     
}