maintext.java

我自己学习J2ME的时候写的俄罗斯方块游戏

package src;

import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
import javax.microedition.midlet.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
public class MainText extends Form implements CommandListener {
	Display display;

	List list;

	TextField text1, text2, text3, text4;

	RecordStore recordStore;

	Account account;

	Command cmdback, cmdsave, cmdread;

	public MainText(Display display, List list) { // 两个界面传送参数

		super("添加联系人");
		this.display = display; // 两个界面传送参数
		this.list = list; // 两个界面传送参数
		text1 = new TextField("姓名", "", 255, TextField.ANY);
		text2 = new TextField("移动电话", "", 255, TextField.PHONENUMBER);
		text3 = new TextField("固定电话", "", 255, TextField.PHONENUMBER);
		text4 = new TextField("电子邮件", "", 255, TextField.EMAILADDR);
		cmdback = new Command("返回", Command.SCREEN, 0);
		cmdsave = new Command("添加", Command.SCREEN, 0);
		append(text1);
		append(text2);
		append(text3);
		append(text4);
		addCommand(cmdback);
		addCommand(cmdsave);
		setCommandListener(this);
		recordstore(); // 必须调用这个函数
	}

	public void commandAction(Command c, Displayable d) {
		if (c == cmdback) {

			display.setCurrent(list);
		}
		if (c == cmdsave) {
			saveAccount();
		}

	}

	public void recordstore() {
		try {
			recordStore = RecordStore.openRecordStore("record", true,
					RecordStore.AUTHMODE_ANY, true);

		} catch (Exception e) {
		}
			ByteArrayOutputStream baos=new ByteArrayOutputStream();
			DataOutputStream outputStream=new DataOutputStream(baos);
			int id=-1;
			try
			{
				outputStream.writeUTF(text1.getString());
				outputStream.writeUTF(text2.getString());
				outputStream.writeUTF(text3.getString());
				outputStream.writeUTF(text4.getString());
			}
			catch(Exception e)
			{
				System.out.println(e);
			}
			byte[]b=baos.toByteArray();
			try
			{
				if(recordStore.getSizeAvailable()<b.length){}
			
			id=recordStore.addRecord( b,0,b.length);
			}
			catch(Exception e)
			{
				System.out.println(e);
			}
			try
			{
				outputStream.close();
				baos.close();
				
			}
			catch(Exception e)
			{
				System.out.println(e);
			}

	}

	private void saveAccount() {

		Account account = new Account(text1.getString(), text2.getString(),
				text3.getString(), text4.getString());

		// 保存联系人
		try {
			byte[] data = account.encode();
			recordStore.addRecord(data, 0, data.length);
			Alert alert = new Alert("提示", text1.getString() + "\n"
					+ text2.getString() + "\n" + text3.getString() + "\n"
					+ text4.getString() + "保存成功", null, AlertType.ALARM);
			alert.setTimeout(10000);
			display.setCurrent(alert);
		} catch (RecordStoreNotOpenException e) {
			e.printStackTrace();
		} catch (RecordStoreFullException e) {
			e.printStackTrace();
		} catch (RecordStoreException e) {
			e.printStackTrace();
		}
	}

	// private void readAccount() {
	// try {
	// RecordEnumeration re = recordStore.enumerateRecords(null, null, false);
	// while(re.hasNextElement()) {
	// byte[] data = re.nextRecord();
	// Account account = Account.decode(data);
	// this.append("name: " + account.getName() + "------");
	// this.append("tel: " + account.getTel());
	// this.append("mobile tel: " + account.getMobileTel());
	// this.append("email: " + account.getEmail());
	// }
	// } catch (RecordStoreNotOpenException e) {
	// e.printStackTrace();
	// } catch (InvalidRecordIDException e) {
	// e.printStackTrace();
	// } catch (RecordStoreException e) {
	// e.printStackTrace();
	// }
	//		
	//		
	// }

}