settingsscreen.java

手机的联网应用

package cn.com.javachen;

import javax.microedition.lcdui.ChoiceGroup;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.TextField;

public class SettingsScreen extends Form implements CommandListener{
	

	private HomeReceiveMidelt hrMidelt;

	private Command backCommand = new Command("返回", Command.BACK, 1);

	private Command okCommand = new Command("设置", Command.SCREEN, 1);

	private Settings set;

	private TextField urlTextField;
	private TextField portTextField;
	private TextField nameTextField;
	private TextField passwordTextField;
	private static final String[] cmnetOptions = {"cmnet","cmwap"};
	private static final String[] datatypeOptions = {"gbk","utf-8","iso8859-1"};
	private ChoiceGroup cmnetChoice;
	private ChoiceGroup datatypeChoice;

	public SettingsScreen(HomeReceiveMidelt hrMidelt, Settings set) {
		super("设置登陆信息");
		this.hrMidelt = hrMidelt;
		this.set = set;		

		urlTextField=new TextField("请设置网址：","",30,TextField.ANY);
		portTextField=new TextField("请设置端口:","",30,TextField.ANY);
		nameTextField=new TextField("请设置姓名：","",30,TextField.ANY);
		passwordTextField=new TextField("请设置密码：","",30,TextField.PASSWORD);
		cmnetChoice = new ChoiceGroup("请设置联网方式：",ChoiceGroup.EXCLUSIVE, cmnetOptions,null);
		datatypeChoice = new ChoiceGroup("请设置中文编码:", ChoiceGroup.EXCLUSIVE, datatypeOptions,null);
	    
		append(urlTextField);
		append(portTextField);
		append(nameTextField);
		append(passwordTextField);
		append(cmnetChoice);
		append(datatypeChoice);
		
		addCommand(backCommand);
		addCommand(okCommand);
		setCommandListener(this);
		
	}
	public void commandAction(Command arg0, Displayable arg1) {
		// TODO Auto-generated method stub
		if(arg0==backCommand){
			hrMidelt.mainMenuScreenShow(null);
		}else if(arg0==okCommand){
			processMenu();
		}
	}
	private void processMenu() {
	    try {
	      set.updateSettings(urlTextField.getString().trim(),portTextField.getString().trim(),nameTextField.getString().trim(),passwordTextField.getString().trim(),cmnetChoice.getSelectedIndex(),datatypeChoice.getSelectedIndex());
	      hrMidelt.mainMenuScreenShow(null);
	    }  catch (Exception ex) {
//	      hrMidelt.showErrorMsg("null");
	    }
	  }
	public void init() throws Exception {
	    set.loadSettings();
	    urlTextField.setString(set.getUrlString().trim());
	    portTextField.setString(set.getPort().trim());
	    nameTextField.setString(set.getName().trim());
	    passwordTextField.setString(set.getPassword().trim());
	    cmnetChoice.setSelectedIndex(set.getCmnet(),true);
	    datatypeChoice.setSelectedIndex(set.getDataType(),true);
	  }
}