categoryslist.java

电话本信息管理,能读取电话本信息,很好用的啊哈哈哈....

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.List;
import javax.microedition.pim.PIMException;
import javax.microedition.pim.PIMList;


public class categorysList extends List implements CommandListener {


	private final Command removeCommand=new Command("删除",Command.SCREEN,3);
	private final Command newCommand=new Command("新建",Command.SCREEN,2);
	private final Command selectCommand=new Command("查看",Command.OK,1);
	private final Command backCommand=new Command("后退",Command.EXIT,1);
	private final ContactListDemo midlet;
	private final Displayable caller;
	private final PIMList pList;
	
	public categorysList(ContactListDemo _midlet,Displayable _displayable,PIMList _list) {
		super("选择一个分组", List.IMPLICIT);
		midlet=_midlet;
		caller=_displayable;
		pList=_list;
		addCommand(removeCommand);
		addCommand(newCommand);
		addCommand(selectCommand);
		addCommand(backCommand);
		setCommandListener(this);
		populateList();
	}

	public void commandAction(Command c, Displayable d) {
		 if(c==selectCommand){///显示电话本内联系人列表
			 Form form=new Form("载入电话本列表");
			 form.append("请等候...");
			 Display.getDisplay(midlet).setCurrent(form);
			 String catagoryName=getString(getSelectedIndex());
			 if(catagoryName.equals("未分组"))
				 catagoryName=PIMList.UNCATEGORIZED;
			 try {
					((showPersonList)caller).setCurrentCategory(catagoryName);
					((showPersonList)caller).populateList();
				} catch (Exception e) {
				  e.printStackTrace();
				}
				
			Display.getDisplay(midlet).setCurrent(caller);
		 }
		 else if(c==backCommand){
			 Display.getDisplay(midlet).setCurrent(caller);
		 }
		 else if(c==newCommand){
			 Display.getDisplay(midlet).setCurrent(new catagoryForm(midlet,this,pList));
		 }
		 else if(c==removeCommand){
			 String catagoryName=getString(getSelectedIndex());
			 try {
				  pList.deleteCategory(catagoryName, true);
				 } catch (Exception e) {
					 e.printStackTrace();
				 }
		     populateList();
		 }

	}
	public void populateList()
	{
		deleteAll();
		try {
			String []cats=pList.getCategories();
			for(int i=0;i<cats.length;i++){
				append(cats[i], null);
			}
			append("未分组", null);
		} catch (PIMException e) {
			e.printStackTrace();
		}
	}
}