meetrecollect.java

在手机上 可以 存取数据 删除 数据 一个简单的手机应用

import javax.microedition.lcdui.*;
import javax.microedition.rms.RecordEnumeration;
import javax.microedition.rms.RecordFilter;
import javax.microedition.rms.RecordStore;

//会议回顾类
public class MeetRecollect extends Form implements CommandListener{
    private DataSave dataSave;
    private Container container;
    private Displayable displayable;
    private Jianhuaban midlet;
    private Display display;
    private MyCommand myc;
    private Command backCommand;
    private StringItem  si;
    
    private String meetRecollectContainer;
    private String meetRecollectID;
      private RecordEnumeration re = null;
    private RecordStore rs = null;
    
    public MeetRecollect(Jianhuaban midlet,Displayable parents,Container container,DataSave dataSave) {
        super("会议回顾");
        this.midlet=midlet;
        displayable=parents;
        this.display=Display.getDisplay(midlet);
        si=new StringItem("会议回顾","");
       
        this.append(si);
      
        myc=new MyCommand();
        this.addCommand(myc.getBack());
        this.addCommand(myc.getDisplay());

        backCommand=new Command("back",Command.BACK,1);
        this.addCommand(backCommand);
        this.setCommandListener(this);
         this.container=container;
        if(container.getMeetRecollect()==null){
            container.setMeetRecollect("meetRecollect");
        }
         this.dataSave=dataSave;
    }

    public void commandAction(Command c ,Displayable d) {
     
      //   DataSave ds=new DataSave("meetRecollect");
     
         String  sb=new String();
        int i=dataSave.getCurrentID();  
     if(backCommand==c){
            
           display.setCurrent(displayable);
      }
        
        if(c==myc.getDisplay()){
        
       sb=dataSave.getTheStore(dataSave,"meetRecollect",i,container); 
          
          si.setText(sb);
          
        }
        if(c==myc.getDownCommand()){
          
            i++;
          sb=dataSave.getTheStore(dataSave,"meetRecollect",i,container);
            
            si.setText(sb);
        }if(c==myc.getUpCommand()){
            
            i--;
           sb=dataSave.getTheStore(dataSave,"meetRecollect",i,container);
            
            si.setText(sb);
        }
   
    }
  
}