Java Development

[phucnhfpt]

I run on simulator success. But after build in mobile : it throw an exception Illegalargument exception. What i must do?

Somebody know how to debug on mobile?

[BBDeveloper]

Which part of the code is throwing exception?

[phucnhfpt]

Absolutely, i don't know which part of code throw an exception. So i must study how to debug on mobile.

[BBDeveloper]

First you could make use of System Outs to know till which part of code is running and what has to be done next.

[phucnhfpt]

Can you fix it for me? I will send you my source code . I must pay a lot of time and create many topic to solve this problem. But now it is not resolved. I think it is not a large problem with you. Please!

[BBDeveloper]

If you post your code, any other users will also help you fix the problem.

You could give a look at the below sticky thread if you are new to BB development.

http://supportforums.blackberry.com/t5/Java-Development/Useful-links-for-novice-and-experienced-prog...

[phucnhfpt]

Here is my code make an error : 

I think the error appear when i use WebBitmapField and load data to set for. Here is my code, please pay attention to getData method and contructor   : 

/*
 * UploadScreen.java
 * 
 * Version: 1.0
 *
 * Created date: 18-Oct-2008
 * 
 * Copyright: N/A
 * 
 * Modification Logs:
 *   DATE        AUTHOR      DESCRIPTION
 *  --------------------------------------------------------
 *  18-Oct-2008  ChienPV     First create
 */
package com.sonic.roxio.blackberry.mpu.ui;

import java.io.IOException;
import java.io.InputStream;
import java.util.Vector;

import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;

import net.rim.device.api.i18n.ResourceBundle;
import net.rim.device.api.system.Bitmap;
import net.rim.device.api.system.Characters;
import net.rim.device.api.ui.Color;
import net.rim.device.api.ui.ContextMenu;
import net.rim.device.api.ui.DrawStyle;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.ui.Manager;
import net.rim.device.api.ui.MenuItem;
import net.rim.device.api.ui.Screen;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.Menu;
import net.rim.device.api.ui.container.HorizontalFieldManager;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.ui.container.VerticalFieldManager;

import com.sonic.roxio.blackberry.mpu.persistence.Account;
import com.sonic.roxio.blackberry.mpu.persistence.Photoshow;
import com.sonic.roxio.blackberry.mpu.resource.Constants;
import com.sonic.roxio.blackberry.mpu.resource.MobilePhotoUploaderResource;
import com.sonic.roxio.blackberry.mpu.ui.control.PhotoshowList;
import com.sonic.roxio.blackberry.mpu.ui.control.WebBitmapField;
import com.sonic.roxio.blackberry.mpu.ui.control.showButton;
import com.sonic.roxio.blackberry.mpu.util.DebugUtils;
import com.sonic.roxio.blackberry.mpu.util.ImageUtils;
import com.sonic.roxio.blackberry.mpu.util.ServiceUtils;

public class ChoosePhotoshowScreen extends MainScreen implements MobilePhotoUploaderResource, Constants, FieldChangeListener {
        // define resources
        private static ResourceBundle _resources = ResourceBundle.getBundle(BUNDLE_ID, BUNDLE_NAME);

        // for GUI
        private UiApplication uiApplication;
        private Vector elements;
        protected PhotoshowList photoshowList; 
        static Bitmap background = ImageUtils.getBitmapResource("background.png");
        static Bitmap noIcon = ImageUtils.getBitmapResource("noIcon.jpeg");
        showButton[] listOfShow;
        Vector list;
        Vector saveList = new Vector();
        boolean stop = false;
        int first = 0;
        int last = 0;
        StringBuffer rawResponse;
        
        
        VerticalFieldManager verticalContainer = new VerticalFieldManager(
                        USE_ALL_WIDTH | USE_ALL_HEIGHT | Field.FIELD_HCENTER) {
                protected void paintBackground(Graphics graphics) {
                        Manager manager = getManager();
                        int scroll = manager.getVerticalScroll();
                        graphics.drawBitmap(0, scroll, SCREEN_WIDTH, SCREEN_HEIGHT, background, 0, 0);
                };
        };

        HorizontalFieldManager horizontalContainer = new HorizontalFieldManager(
                        USE_ALL_WIDTH | VERTICAL_SCROLL | VERTICAL_SCROLLBAR) {
                
                protected void sublayout(int maxWidth, int maxHeight) {
                        super.sublayout(maxWidth, SCREEN_HEIGHT);
                }
        };
        
        HorizontalFieldManager horizontalContainer1 = new HorizontalFieldManager(
                        USE_ALL_WIDTH | VERTICAL_SCROLL | VERTICAL_SCROLLBAR) {
            
                        protected void sublayout(int maxWidth, int maxHeight) {
                                super.sublayout(maxWidth, SCREEN_HEIGHT);
                        }
        };
        
        LabelField recentShowLabel = new LabelField("Recent ");
        
        WebBitmapField[] image;

    public ChoosePhotoshowScreen(Vector elements, Vector list) {
                    
        super(VERTICAL_SCROLL | VERTICAL_SCROLLBAR);
        VerticalFieldManager showIconManager;
        LabelField titleLabel = new LabelField(_resources.getString(CHOOSE_PHOTOSHOW_SCREEN_TITLE)){
            public void paint(Graphics graphics){
                graphics.setColor(Color.WHITE);
                super.paint(graphics);
            }
        };
        titleLabel.setFont(FONT_BOLD);
    
        HorizontalFieldManager titleManager = new HorizontalFieldManager(FIELD_HCENTER);
        titleManager.add(titleLabel);
                   
        LabelField recentShowLabel = new LabelField("Recent show "){
            public void paint(Graphics graphics){
                    graphics.setColor(Color.WHITE);
                    super.paint(graphics);
            }
            };
        recentShowLabel.setFont(FONT_BOLD);
        HorizontalFieldManager recentShowManager = new HorizontalFieldManager();                
        recentShowManager.add(recentShowLabel);
                            
        LabelField allShowLabel = new LabelField("All shows "){
        public void paint(Graphics graphics){
                graphics.setColor(Color.WHITE);
                super.paint(graphics);
        }
        };
        allShowLabel.setFont(FONT_BOLD);            
        HorizontalFieldManager allShowManager = new HorizontalFieldManager();
        allShowManager.add(allShowLabel);
                                       
        uiApplication = UiApplication.getUiApplication();

        this.elements = elements;
        this.list = list;     
        listOfShow = new showButton[list.size() + 1]; 
        verticalContainer.add(titleManager);                   
        Photoshow selectedShow = Account.getInstance().getPhotoshow();
        for (int i = 0; i < listOfShow.length; i++)
        {
            if (i == 0) 
            {
                if (selectedShow != null) saveList.addElement(selectedShow);                
                else saveList.addElement(list.elementAt(0));
            }
            else saveList.addElement(list.elementAt(i - 1));
        }
        image = new WebBitmapField[saveList.size()];
        //recent show
        verticalContainer.add(recentShowManager);
        if (selectedShow != null)
        {
            showIconManager = new VerticalFieldManager(VerticalFieldManager.FIELD_HCENTER 
                | VerticalFieldManager.FIELD_VCENTER | VerticalFieldManager.USE_ALL_WIDTH
                | VerticalFieldManager.USE_ALL_HEIGHT | DrawStyle.HCENTER | DrawStyle.VCENTER)
                {
               protected void sublayout( int maxWidth, int maxHeight )
               {
                   //set your width
                   int width = 50;
                   //set your height
                   int height = 50;
             
                   super.sublayout( width, height);
                   setExtent( width, height);
                }                                                     
            };
            image[0] = new WebBitmapField(Field.FIELD_HCENTER);
            showIconManager.add(image[0]);
            
            Photoshow recentShow = (Photoshow)saveList.elementAt(0);
            listOfShow[0] = new showButton(recentShow.getTitle(), Field.FOCUSABLE);
            listOfShow[0].setChangeListener(this);
            
            HorizontalFieldManager showManager = new HorizontalFieldManager();
            showManager.add(showIconManager);
            showManager.add(listOfShow[0]);
            verticalContainer.add(showManager);                                           
        }
        //all shows
        verticalContainer.add(allShowManager);
        for (int i = 1; i < saveList.size(); i++)
        {
            showIconManager = new VerticalFieldManager(VerticalFieldManager.FIELD_HCENTER 
                | VerticalFieldManager.FIELD_VCENTER | VerticalFieldManager.USE_ALL_WIDTH
                | VerticalFieldManager.USE_ALL_HEIGHT | DrawStyle.HCENTER | DrawStyle.VCENTER)
                {
                   protected void sublayout( int maxWidth, int maxHeight )
                   {
                       //set your width
                       int width = 50;
                       //set your height
                       int height = 50;
                 
                       super.sublayout( width, height);
                       setExtent( width, height);
                    }                                                     
                };
            image[i] = new WebBitmapField(Field.FIELD_HCENTER);
            showIconManager.add(image[i]);
            
            Photoshow aShow = (Photoshow)saveList.elementAt(i);
            listOfShow[i] = new showButton(aShow.getTitle(), Field.FOCUSABLE);
            listOfShow[i].setChangeListener(this);
            
            HorizontalFieldManager showManager = new HorizontalFieldManager();
            showManager.add(showIconManager);
            showManager.add(listOfShow[i]);
            verticalContainer.add(showManager);                         
        }      
        if (selectedShow != null) first = 0;
        else first = 1;
        if (saveList.size() > 4) last = 4;
        else last = saveList.size() - 1; 
        getData();                
        this.add(verticalContainer);
    }                       
    UploadScreen uploader = null;                
    public void openSelectStyleScreen(){
        final Photoshow selectedShow = (Photoshow)photoshowList.get(photoshowList.getSelectedIndex());
        if (selectedShow != null && !selectedShow.isExpired()) {
                Thread selectStyleThread = new Thread() {
                public void run() {
                    Vector vtCategory = new Vector();
                    try{
                        vtCategory = ServiceUtils.getCategoryAndStyle();
                        final SelectStyle selectStyle = new SelectStyle(vtCategory, selectedShow, elements);
                        uiApplication.invokeAndWait(new Runnable(){
                            public void run(){
                                    uiApplication.pushScreen(selectStyle);
                            }
                        });     
                    }
                    catch(Exception ex){
                        DebugUtils.error("CreateNewShowScreen.openSelectStyleScreen.run()."+ex.toString());
                        displayMessage(_resources.getString(MSG_ERROR_CONTACTING_SERVER));
                    }
                }
            };
            selectStyleThread.start();
        } 
        else {
            displayMessage("Photoshow is expired.");
        }
    }

    private void displayMessage(final String text) {
        uiApplication.invokeLater(new Runnable() {
            public void run() {
                Dialog.alert(text);
            }
        });
    }
        
    private void openMainScreen() {
        int screenCount = uiApplication.getScreenCount();
        for (int i = 0; i < screenCount; i++) {
            Screen activeScreen = uiApplication.getActiveScreen();
            if (!(activeScreen instanceof com.sonic.roxio.blackberry.mpu.ui.MainScreen)) {
                activeScreen.close();
            } 
            else {
                break;
            }
        }
    }
        
    public void updateShow()
    {
        Photoshow currentPhotoShow = null;
        for (int i = 0; i < saveList.size(); i++)
            if ((listOfShow[i] != null) && (listOfShow[i].checkSelected()))
            {
                currentPhotoShow = (Photoshow)saveList.elementAt(i);
            }
        if (currentPhotoShow != null && !currentPhotoShow.isExpired()) {
        final PhotoLibraryScreen library = new PhotoLibraryScreen(false);
        library.setCurrentPhotoshow(currentPhotoShow);
        uiApplication.invokeAndWait(new Runnable(){
            public void run() {
                uiApplication.pushScreen(library);
            }
        });
        };     
    }
        
    private MenuItem uploadMenuItem = new MenuItem(_resources.getString(UPLOAD_BUTTON), 1, 1) {
        public void run() {
            updateShow();
        }
    };
        
        // create back menu item
    private MenuItem backMenuItem = new MenuItem("Back", 2, 2) {
        public void run() {
                //uiApplication.getActiveScreen().close();
                openMainScreen();
        }
    };
        
    public boolean keyChar(char c, int status, int time)
    {
        switch (c) {
            case Characters.ESCAPE :                                
                openMainScreen();
                return true;
            case Characters.ENTER :
                super.keyChar(c, status, time);
                updateShow();
                return true;
                    
            default :
                return super.keyChar(c, status, time);                  
        }
    }
        
        /**
         * Overrides makeMenu() in superclass
         */
    protected void makeMenu(Menu menu, int instance){
        ContextMenu contextMenu = ContextMenu.getInstance();
        contextMenu.setTarget(this);
        contextMenu.clear();
        
        this.makeContextMenu(contextMenu);
        
        menu.deleteAll();
        menu.add(contextMenu);
    }
        
    /**
         * Overrides makeContextMenu() in superclass
         */            
    public void makeContextMenu(ContextMenu contextMenu) {
            if (elements.size() == 0) contextMenu.addItem(uploadMenuItem);
            contextMenu.addItem(backMenuItem);
    }       

    protected boolean navigationClick(int status, int time) 
    {
        //fieldChangeNotify(0);
            super.navigationClick(status, time);
            return true;
    }

    public void fieldChanged(Field field, int context) {
            if (field instanceof showButton)
            {
                    updateShow();
            }                       
    }       
                
    public void getData()
    {
    	UiApplication.getUiApplication().invokeLater(new Runnable() 
    	{  
	        public void run()  
	        {        
	            //while (!stop)
	            //{
	                while (first <= last)
	                {
	                    Photoshow aShow = (Photoshow)saveList.elementAt(first);
	                    String url = aShow.getIconURL();
	                    String head = url.substring(0, 45);
	                    String end = url.substring(45, url.length());
	                    url = head + "w50/h50/" + end;
	                    rawResponse = new StringBuffer();    
	                    HttpConnection connection = null;  
	                    InputStream inputStream = null;    
	                    try  
	                    {  
	                        connection = (HttpConnection) Connector.open(url, Connector.READ, true);  
	                        inputStream = connection.openInputStream();  
	                        byte[] responseData = new byte[10000];  
	                        int length = 0;                         
	                        while (-1 != (length = inputStream.read(responseData)))  
	                        {                               
	                            rawResponse.append(new String(responseData, 0, length));
	                        }  
	                        int responseCode = connection.getResponseCode();  
	                        if (responseCode != HttpConnection.HTTP_OK)  
	                        {  
	                            throw new IOException("HTTP response code: " + responseCode);  
	                        }                               	                                    
	                                    inputStream.close();
	                                    connection.close();                              
	                    }  
	                    catch (final Exception ex)  
	                    {                                   
	                    }  
	                    finally  
	                    {                                     
	                        String result = rawResponse.toString();  
	                        image[first].callback(result);
	                        first++;                                
	                    //inputStream.close();  
	                    inputStream = null;  
	                    //connection.close();  
	                    connection = null;                                                 
	                    }  
	                }                                
	                if (first >= last) stop = true;          
	        }  
	    });  
    }
}

 WebBitmapField code : 

package com.sonic.roxio.blackberry.mpu.ui.control;
import com.sonic.roxio.blackberry.mpu.util.WebDataCallback;

import net.rim.device.api.system.Bitmap;
import net.rim.device.api.system.EncodedImage;
import net.rim.device.api.ui.Color;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.ui.component.BitmapField;

public class WebBitmapField extends BitmapField implements WebDataCallback
{  
     private EncodedImage bitmap = null;  
     public String inform = "No Icon";
     public WebBitmapField(long style)  
     {      
    	super(null, style);    	
     }        

	public Bitmap getBitmap()  
     {  
         if (bitmap == null) return null;  
         return bitmap.getBitmap();  
     }  
	
	protected void paint(Graphics graphics)
	{
		graphics.setColor(Color.WHITE);
        graphics.fillRect(0, 0, 50, 50);
        graphics.setColor(Color.BLACK);
        //graphics.setFont(FONT_BOLD);
        graphics.drawText(inform, 0, 15);
		super.paint(graphics);
	}        

	public void callback(final String data)  
    {  
         if (data.startsWith("Exception")) return;  
   
         
             byte[] dataArray = data.getBytes();  
             bitmap = EncodedImage.createEncodedImage(dataArray, 0,  
                     dataArray.length);   
             /*
             if (bitmap != null)
             {
            	 inform = "";
            	 invalidate();
             }*/
             setImage(bitmap); 
        
     }
}  

[phucnhfpt]

After comment  "image[first].callback(result);" line in getData() method. I built to my device and it is not throw an exception. What the mater with this method callback? Pls help.

[phucnhfpt]

public void callback(final String data)  
       {  
           if (data.startsWith("Exception")) return;  
     
           try  
           {  
               byte[] dataArray = data.getBytes();  
               bitmap = EncodedImage.createEncodedImage(dataArray, 0,  
                       dataArray.length);  
               setImage(bitmap);  
           }  
           catch (final Exception e){}  
       }  

 Here is my method make an error in my program. I use it to load an image from url. The image is jpeg type. So when i build my program it make an error.

[BBDeveloper]

What is your setImage doing?