Blackberry App Appearance VS Facebook App
final BasicEditField UserID = new BasicEditField( "User ID:", "example");
    final BasicEditField UserName = new BasicEditField( "Username:", "");
    final BasicEditField Password = new PasswordEditField( "Password:", "example" );

    VerticalFieldManager loginFields = new VerticalFieldManager(FIELD_HCENTER |FIELD_VCENTER );
    loginFields.add( UserID );
    loginFields.add( UserName );
    loginFields.add( Password );

    ButtonField Login = new ButtonField( "Login", ButtonField.CONSUME_CLICK | ButtonField.FIELD_HCENTER );
    loginFields.add( Login );

public loginScreen() {

    super(MainScreen.VERTICAL_SCROLL | MainScreen.VERTICAL_SCROLLBAR);

    vMgr = (VerticalFieldManager)getMainManager();

    XYEdges mgrThickPadding = new XYEdges(4, 4, 4, 4);
    Border mgrRoundedBorder = BorderFactory.createRoundedBorder(mgrThickPadding, Border.STYLE_SOLID);
    Background bg = BackgroundFactory.createSolidBackground(Color.LIGHTSTEELBLUE);
    vMgr.setBackground(bg);
    vMgr.setBorder(mgrRoundedBorder);

    setTitle("Login Screen");

    XYEdges thickPadding = new XYEdges(4, 4, 4, 4);
    Border roundedBorder = BorderFactory.createRoundedBorder(thickPadding, Border.STYLE_SOLID);

    Background solidBackground = BackgroundFactory.createSolidBackground(Color.LIGHTGRAY);
    this.setBackground(solidBackground);


    usernameFld = new EditField("Username: ","", 20, BasicEditField.NO_NEWLINE);
    usernameFld.setBorder(roundedBorder);
    usernameFld.setBackground(solidBackground);

    passwordFld = new PasswordEditField("Password: ","", 20, 0);
    passwordFld.setBorder(roundedBorder);
    passwordFld.setBackground(solidBackground);

    FieldChangeListener listener = new FieldChangeListener() {

        public void fieldChanged(Field field, int context) {
            ButtonField buttonField = (ButtonField) field;
            System.out.println("Button pressed: " + buttonField.getLabel());

            if (field == loginBtn)
            {
                // Do Login actions
            }
        }
    };

    loginBtn.setMinimalWidth(200);
    loginBtn.setChangeListener(listener);

    vMgr.add(usernameFld);
    vMgr.add(passwordFld);
    vMgr.add(loginBtn);
}