import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.Item;
import javax.microedition.lcdui.ItemCommandListener;
import javax.microedition.lcdui.StringItem;
public class FormWithButton extends Form implements ItemCommandListener{
private StringItem btnLogin;
private Command cmdLogin;
public FormWithButton(String str) {
super(str);
btnLogin = new StringItem(null, "Login");
cmdLogin = new Command("", Command.OK, 1);
btnLogin.setDefaultCommand(cmdLogin);
btnLogin.setItemCommandListener(this);
append(btnLogin);
}
public void commandAction(Command cmd, Item item) {
LoginForm.show();
}
}
Wednesday, July 22, 2009
Creating Buttons on J2ME Forms
StringItem can be used in order to create buttons on J2ME forms. Define a new Command variable in your Form and set it as defaultCommand for StringItem variable.
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import javax.microedition.lcdui.*;
ReplyDeleteimport javax.microedition.io.*;
import java.io.*;
class Krs extends Form implements CommandListener {
Displayable krs;
private final Command exitCommand = new Command ("KEMBALI", Command.EXIT, 1);
private final Command connectCommand = new Command ("SIMPAN", Command.SCREEN, 2);
private final Command finishCommand = new Command ("FINISH", Command.SCREEN, 3);
private final Command tambahCommand = new Command ("TAMBAH", Command.BACK, 4);
private Display display;
private String pesan;
private TextField t1,t2,t3,t4,t5;
private Ticker ticker;
private String teksTicker = "! APABILA TERJADI PERUBAHAN JADWAL, PIHAK KAMPUS AKAN MENGINFORMASIKAN MELALUI WEB) !";
Form f2;
Reg reg;
private Finish finish;
public Krs (Reg reg, Display display)
{
super ("PENGISIAN KRS");
this.reg = reg;
this.display = display;
ticker = new Ticker(teksTicker);
this.setTicker(ticker);
t1 = new TextField ("Id Mahasiswa : ","",4,TextField.NUMERIC);
t2 = new TextField ("Kode Mata Kuliah : ","",7,TextField.ANY);
t3 = new TextField ("Kelas : ","",2,TextField.ANY);
t4 = new TextField ("Ketua Jurusan : ","",11,TextField.NUMERIC);
t5 = new TextField ("Dosen PA : ","",11,TextField.NUMERIC);
this.append (t1);
this.append (t2);
this.append (t3);
this.append (t4);
this.append (t5);
this.addCommand (exitCommand);
this.addCommand (connectCommand);
this.addCommand (finishCommand);
this.setCommandListener(this);
display.setCurrent(this);
}
public void commandAction(Command c, Displayable d)
{
String data = c.getLabel();
if(c==exitCommand)
{
display.setCurrent(reg);
}
else if(c==connectCommand)
{
Thread t = new Thread()
{
public void run()
{
doDownload();
}
};
t.start();
}
else if(c==finishCommand)
{
finish = new Finish (this, display);
display.setCurrent(finish);
}
else if(c==tambahCommand)
{
awal();
}
}
public void doDownload(){
f2 = new Form ("INFO SERVER");
pesan="";
String URLsite = "http://127.0.0.1/krs/log3.php?";
String p1,p2;
p1 = "idmhs="+t1.getString()+"&kodemk="+t2.getString();
p2 = "&kelas="+t3.getString()+"&iddosenkajur="+t4.getString()+"&iddosenpa="+t5.getString();
HttpConnection con = null;
InputStream in = null;
StringBuffer data = new StringBuffer();
try{
con = (HttpConnection)Connector.open(URLsite+p1+p2);
in = con.openInputStream();
int ch;
while((ch = in.read()) != -1){
data.append((char)ch);
}
pesan = data.toString();
f2.append(pesan);
f2.addCommand(tambahCommand);
f2.setCommandListener(this);
display.setCurrent(f2);
} catch (IOException e)
{
}
}
}
script above command does not return its current path into the form f2. .
how to get back to class krs, when it is entered in the form f2? help me