notelist.java

一个简单的记事本的源代码

 
import java.util.Vector;
import javax.microedition.lcdui.*;

public class NoteList extends List implements CommandListener
{

	Command back;
	Command delete;
	Command view;

	public NoteList(String s, int i)
	{
		super(s, i);
		back = new Command("返回", 2, 1);
		delete = new Command("删除", 4, 1);
		view = new Command("查看", 4, 1);
		addCommand(back);
		addCommand(delete);
		addCommand(view);
		setCommandListener(this);
		Vector vector = SmsMIDlet.v;
		for (int j = 0; j < vector.size(); j++)
		{
			String s1 = (String)vector.elementAt(j);
			if (s1.length() > 10)
				s1 = s1.substring(0, 10) + "...";
			append(s1, null);
		}

	}

	public void commandAction(Command command, Displayable displayable)
	{
		int i = getSelectedIndex();
		Vector vector = SmsMIDlet.v;
		if (command.equals(back))
			SmsMIDlet.midlet.showSmsMain();
		else
		if (command.equals(view) || command.equals(List.SELECT_COMMAND))
			SmsMIDlet.midlet.showSmsXG(i);
		else
		if (command.equals(delete))
		{
			delete(i);
			vector.removeElementAt(i);
		}
	}
}