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LWUITライブラリを使用するJ2ME開発者の新機能です。私は2つのフォームを作っています：1つはMainMidlet.javaで、もう1つはUpgradeApp.javaです。問題は、コンポーネントが何であってもUpgradeApp.javaに追加されても、コンポーネントは表示されません。私を助けてください。
マイコードは以下のとおりです。LWUITでは、別のフォームのコンポーネントは表示されません
MainMidlet.java
package com.sun.lwuit.jewelvicinity;
import com.sun.lwuit.Button;
import com.sun.lwuit.Command;
import com.sun.lwuit.Component;
import com.sun.lwuit.Dialog;
import com.sun.lwuit.Display;
import com.sun.lwuit.Form;
import com.sun.lwuit.Image;
import com.sun.lwuit.Label;
import com.sun.lwuit.TextArea;
import com.sun.lwuit.events.ActionEvent;
import com.sun.lwuit.events.ActionListener;
import com.sun.lwuit.layouts.BorderLayout;
import com.sun.lwuit.layouts.FlowLayout;
import com.sun.lwuit.layouts.GridLayout;
import com.sun.lwuit.plaf.UIManager;
import com.sun.lwuit.table.TableLayout.Constraint;
import com.sun.lwuit.util.Resources;
import java.io.IOException;
import javax.microedition.midlet.*;
public class MainMidlet extends MIDlet implements ActionListener
{
Form frm_Main;
public Button btn_main_Search, btn_main_WishList, btn_main_UpgradeApp, btn_main_Login, btn_main_NewUser,btn_main_Help, btn_main_AboutUs, btn_main_ContactUs, btn_main_Feedback, btn_main_Terms,btn_main_Privacy, btn_main_Exit;
public Image img_main_Search, img_main_Wishlist, img_main_UpgradeApp, img_main_Login, img_main_NewUser,img_main_Help, img_main_AboutUs, img_main_ContactUs, img_main_FeedBack, img_main_Terms,img_main_Privacy, img_main_Exit;
public Command cmd_Exit, cmd_Select;
public void startApp()
{
//--- Use for third soft Button
//Display.getInstance().setThirdSoftButton(true);
Display.init(this);
try
{
Resources theme = Resources.open("/LWUITtheme.res");
UIManager.getInstance().setThemeProps(theme.getTheme(theme.getThemeResourceNames()[0]));
}
catch (IOException io)
{
io.printStackTrace();
Dialog.show("Theme Exception", io.getMessage(), "Ok", null);
}
frm_Main = new Form("Jewel Vicinity");
try
{
img_main_Search = Image.createImage("/res/btn_main_search.png");
img_main_Wishlist = Image.createImage("/res/btn_main_wishlist.png");
img_main_UpgradeApp = Image.createImage("/res/btn_main_upgradeapp.png");
img_main_Login = Image.createImage("/res/btn_main_login.png");
img_main_NewUser = Image.createImage("/res/btn_main_newuser.png");
img_main_Help = Image.createImage("/res/btn_main_help.png");
img_main_AboutUs = Image.createImage("/res/btn_main_aboutus.png");
img_main_ContactUs = Image.createImage("/res/btn_main_contactus.png");
img_main_FeedBack = Image.createImage("/res/btn_main_feedback.png");
img_main_Terms = Image.createImage("/res/btn_main_terms.png");
img_main_Privacy = Image.createImage("/res/btn_main_privacy.png");
img_main_Exit = Image.createImage("/res/btn_main_exit.png");
}
catch (IOException io)
{
io.printStackTrace();
Dialog.show("Image not Found!", io.getMessage(), "Ok", null);
}
btn_main_Search = new Button("Search", img_main_Search);
btn_main_WishList = new Button("Wish List", img_main_Wishlist);
btn_main_UpgradeApp = new Button("Upgrade", img_main_UpgradeApp);
btn_main_Login = new Button("Login", img_main_Login);
btn_main_NewUser = new Button("NewUser", img_main_NewUser);
btn_main_Help = new Button("help", img_main_Help);
btn_main_AboutUs = new Button("About Us", img_main_AboutUs);
btn_main_ContactUs = new Button("Contact Us", img_main_ContactUs);
btn_main_Feedback = new Button("FeedBack", img_main_FeedBack);
btn_main_Privacy = new Button("Privacy", img_main_Privacy);
btn_main_Terms = new Button("Terms", img_main_Terms);
btn_main_Exit = new Button("Exit", img_main_Exit);
lbl_main_WishList.setTextPosition(Component.BOTTOM);
lbl_main_WishList.setAlignment(Component.CENTER);
lbl_main_WishList.getStyle().setMargin(0, 30, 0, 30);
lbl_main_UpgradeApp = new Label("Upgrade");
cmd_Exit = new Command("Exit", 1);
cmd_Select = new Command("Select");
GridLayout grd_MenuLayout = new GridLayout(4, 3);
frm_Main.setTitle("Menu");
frm_Main.setLayout(grd_MenuLayout);
frm_Main.setScrollableY(true);
//---- Add Button On Main Form
frm_Main.addComponent(btn_main_Search);
frm_Main.addComponent(btn_main_WishList);
frm_Main.addComponent(btn_main_UpgradeApp);
frm_Main.addComponent(btn_main_Login);
frm_Main.addComponent(btn_main_NewUser);
frm_Main.addComponent(btn_main_Help);
frm_Main.addComponent(btn_main_AboutUs);
frm_Main.addComponent(btn_main_ContactUs);
frm_Main.addComponent(btn_main_Feedback);
frm_Main.addComponent(btn_main_Terms);
frm_Main.addComponent(btn_main_Privacy);
frm_Main.addComponent(btn_main_Exit);
frm_Main.addCommand(cmd_Select);
frm_Main.addCommand(cmd_Exit);
//frm_Main.setCommandListener(this);
frm_Main.addCommandListener(this);
frm_Main.show();
}
public void pauseApp() {}
public void destroyApp(boolean unconditional) {}
public void actionPerformed(ActionEvent ae)
{
Command cmd = ae.getCommand();
String strcmdName = cmd.getCommandName();
if(strcmdName.equals("Exit"))
{
notifyDestroyed();
}
if (strcmdName.equals("Select"))
{
if(btn_main_Search.hasFocus())
{
//Dialog.show("Search", "Search", "Ok", null);
Form frm_Search = new Form("Search");
frm_Search.show();
}
if(btn_main_UpgradeApp.hasFocus())
{
Form UpgradeApp = new Form("Upgrade App");
UpgradeApp.show();
}
}
}
}
UpgradeApp.java
package com.sun.lwuit.jewelvicinity;
import com.sun.lwuit.Command;
import com.sun.lwuit.Display;
import com.sun.lwuit.Form;
import com.sun.lwuit.Label;
import com.sun.lwuit.events.ActionEvent;
import com.sun.lwuit.events.ActionListener;
import com.sun.lwuit.layouts.FlowLayout;
public class UpgradeApp extends Form implements ActionListener
{
Label lbl_UpgradeApp;
Command cmd_Yes, cmd_No;
Form frm_UpgradeApp;
public UpgradeApp()
{
Display.init(this);
frm_UpgradeApp = new Form("Upgrade Application");
lbl_UpgradeApp = new Label("The New Version of Jewel.");
cmd_Yes = new Command("Yes", 1);
cmd_No = new Command("No", 2);
FlowLayout flw_UpgradeLayout = new FlowLayout(CENTER);
frm_UpgradeApp.setLayout(flw_UpgradeLayout);
frm_UpgradeApp.addComponent(lbl_UpgradeApp);
frm_UpgradeApp.addCommand(cmd_No);
frm_UpgradeApp.addCommand(cmd_Yes);
frm_UpgradeApp.addCommandListener(this);
frm_UpgradeApp.setVisible(true);
frm_UpgradeApp.show();
}
public void actionPerformed(ActionEvent evt)
{
}
}