Problem of ActiveRichTextField Focus

Hello!

I create a custom layout manager with labelfields, bitmapfields and activeRichTextFields to display information in a list of Tweets... I use activeRichTextFields to display the content of the tweets and I need of highlights, the URL, the activeRichTextField is working fine, but when I go to move between Tweets for the development of losing field on a few words

It looks to...

I was not able to fix this bug so 4.6, but the same code works pretty well in SW 4.7 or higher!

Tags: BlackBerry Developers

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Hi people,

I have a problem with listfield focus. in the 8900 v4.6.1, the last update does not disappear when I select a new line.

Do the invalidate in line works, but navigation has become with the slow performance.

Code:

package mypackage;

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

import javax.microedition.lcdui.Font;

import net.rim.device.api.system.Bitmap;
import net.rim.device.api.ui.Color;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.BitmapField;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.ListField;
import net.rim.device.api.ui.component.ListFieldCallback;
import net.rim.device.api.ui.decor.BackgroundFactory;

public final class HelpScreen extends CustomMainScreen {
    protected boolean onSavePrompt() {
        try {
            save();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            System.err.println("Excecao HelpScreen 1 " + e.getClass() + " - " + e.getMessage());
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        }
        return true;
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    private Vector content = null;
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    public HelpScreen() {

        // System.out.println("HelpScreen");

        setBanner(new BitmapField(Bitmap.getBitmapResource(ScreenManager.getStringProperty("helpscreen.banner"))));
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        ListField list = initCallbackListening();

        list.setSize(content.size());
        // list.setRowHeight(62);
        int rowheight = ScreenManager.getPositionAtKey("helpscreen.listfield.rowheight");

        list.setRowHeight(rowheight);
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        LabelField copyright = new LabelField("Cielo Mobile " + ServerRequests.version + "\n" + "© Todos os direitos reservados",
                Field.USE_ALL_WIDTH) {
            protected void paint(Graphics graphics) {
                graphics.setColor(Color.WHITE);
                super.paint(graphics);
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        };
        copyright.setBackground(BackgroundFactory.createSolidBackground(0x434343));
        copyright.setPadding(ScreenManager.getPositionAtKey("helpscreen.copyright.padding.top"),
                ScreenManager.getPositionAtKey("helpscreen.copyright.padding.right"),
                ScreenManager.getPositionAtKey("helpscreen.copyright.padding.bottom"),
                ScreenManager.getPositionAtKey("helpscreen.copyright.padding.left"));
        copyright.setPosition(ScreenManager.getPositionAtKey("helpscreen.copyright.position"));

        copyright.setFont(getFont().derive(Font.STYLE_PLAIN, 14));

        add(copyright);

    }

    private Vector getVector() {
        Vector menuItems = new Vector();
        Hashtable currentElement = new Hashtable();
        Class classs = null;
        try {
            classs = Class.forName(this.getClass().getName());
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            System.err.println("Excecao HelpScreen 2 " + e.getClass() + " - " + e.getMessage());
            e.printStackTrace();
        }
        InputStream stream = classs.getResourceAsStream("/fraseologia.properties");
        PropertiesUtil properties = new PropertiesUtil();
        try {
            properties.load(stream);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            System.err.println("Excecao HelpScreen 3 " + e.getClass() + " - " + e.getMessage());
            e.printStackTrace();
        }
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        menuItems.addElement(currentElement);

        currentElement = new Hashtable();
        currentElement.put("title", "2 " + ((String) properties.getProperties().get("pergunta2")).toUpperCase());
        menuItems.addElement(currentElement);

        currentElement = new Hashtable();
        currentElement.put("title", "3 " + ((String) properties.getProperties().get("pergunta3")).toUpperCase());
        menuItems.addElement(currentElement);

        currentElement = new Hashtable();
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        currentElement = new Hashtable();
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        menuItems.addElement(currentElement);

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        menuItems.addElement(currentElement);

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        menuItems.addElement(currentElement);

        currentElement = new Hashtable();
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        // currentElement.put("title", "Cielo Mobile " + ServerRequests.version);
        // currentElement.put("text", "© Todos os direitos reservados");
        // menuItems.addElement(currentElement);

        return menuItems;
    }

    private ListField initCallbackListening() {
        callback = new ListHelpScreen();
        ListField listField = new ListField() {

            protected boolean navigationClick(int status, int time) {
                // TODO melhorar essa logica
                if (this.getSelectedIndex() < 8) {
                    UiApplication.getUiApplication().pushScreen(new AnswersScreen(this.getSelectedIndex()));
                }

                return true;
            }
        };
        listField.setCallback(callback);
        listField.setFont(this.getFont().derive(Font.STYLE_PLAIN, 16));

        // listField.setRowHeight(-3);
        return listField;
    }

    private class ListHelpScreen implements ListFieldCallback {
        private int lastIndex = 0;

        public void drawListRow(ListField listField, Graphics graphics, int index, int y, int width) {

            Hashtable currentCellInformations = ((Hashtable) content.elementAt(index));

            Bitmap image = null;
            if (index == listField.getSelectedIndex()) {
                image = Bitmap.getBitmapResource(ScreenManager.getStringProperty("helpscreen.listfieldcallback.image.hint"));
            } else {
                image = Bitmap.getBitmapResource(ScreenManager.getStringProperty("helpscreen.listfieldcallback.image"));
            }

            graphics.drawBitmap(0, y, image.getWidth(), image.getHeight(), image, 0, 0);

            String text = (String) currentCellInformations.get("title");
            graphics.setColor(Color.WHITE);
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             listField.invalidate(lastIndex);
            lastIndex = index;
        }

        public Object get(ListField listField, int index) {
            return content.elementAt(index);
        }

        public int getPreferredWidth(ListField listField) {
            return ScreenManager.getPositionAtKey("helpscreen.listfieldcallback.preferredwidth");
        }

        public int indexOfList(ListField listField, String prefix, int start) {
            return content.indexOf(prefix, start);
        }
    }
}

Could you help me please with other alternatives?

Thanks in advance.

It was the solution for me

ListField listField = new ListField() {
            private int lastIndex = 0;

            public int moveFocus(int amount, int status, int time) {
                lastIndex = getSelectedIndex();
                invalidate(lastIndex);
                return super.moveFocus(amount, status, time);
            }

Thank you!!!

How to avoid the focus problem when browsing via browser back button
Hello

I am facing a problem in setting focus on the buttons.
Please see application: http://apex.oracle.com/pls/otn/f?p=47869:2

login details:
Workspace: vsanthanam
user: vijay
PSWD: apex_demo

In this application, I have 2 pages.
#2 has the "submit" button
Page no. 3 contains the Cancel button

The two buttons are basic HTML and can be accessed using access key ALT + s and ALT + c.

The problem is:
When I go back to the previous page (pgid #2) of the application using back button of the browser pgid IE #3.
due to the onFocus event located in the button "submit", control returns to pgid #3.

Is there a possible way to set the focus to other elements. so that whenever IE brower back button, application would stay in
page #2.

I took approaches:
-------------------------
If we use onclick, onfocus instead and then the problem remains because we have onfocus = "this.click (); in equipping the Accesskey.
Another way is onKeyup event. If we use onKeyup, we can avoid this browser back problem, but disappears from the access keys functions.

Pointers on this would be a great help.

Thank you very much
-Vijay

PLEASE NOTE: I have created intentionally two buttons on each page. It is necessary to have HTML buttons with the key features of access,
otherwise application gives a few flaws in HTML accesskey.
Hi Vijay,

Crikey, aren't annoying browsers! It took a while to get out, but I've updated your SUBMIT1 button attributes:
```
class="t20Button" AccessKey="s" tabindex="-1" onclick="javascript:this.blur();doSubmit('SUBMIT1');" onfocus="javascript:this.blur();doSubmit('SUBMIT1');"
```
Note that I removed the spare semicolons you after each attribute - these are only required in javascript code.

The important point to note are the statements of "this.blur" () - this tells the browser to move away from the current item to the next. On your page, only for this purpose, I have added a text element of Temp - I am assuming that your actual page will have at least one other element on the page that will accept the focus? Everything gets focus of the call "this.blur ()", should be the element with focus when the Back button is used.

Andy

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On the multimedia shows to update the 'NewNovelist"is compatible with Windows Vista and Windows 7.
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There is a patch of the FocusMultiMedia for Windows Vista.
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Change the focus to the next field in the screen!

Hi, I have a problem change the focus in the fields, suppose I have a list at least 200 records field and I need to change the focus in the field below (accept button)... remains the path to achieve this? in denavigationde?

Screen

-Manager

-Manager

TextField - button

ListView-

-Manager

-Button (Accept)

My screen can be so, but not necessarily be so.

Thank you, in advance.

It is relatively easy to divert attention if you know where it's going. You can just do 'setFocus '.

It is also relatively easy move focus generically. For example, in a field, you can do things like

Manager m = this.getManager ();

int myIndex = this.getIndex ();

int managerFieldCount = m.getFieldCOunt ();

Field nextFocus = null;

for (int i = myIndex + 1; i)< managerfieldcount="" ;="" i++="" )="">

Field testField = m.getField (i);

If {(testField.isFocusable ())}

nextFocus = testField;

break;

}

}

If (nextFocus! = null) {}

nextFocus.stFocus ();

} else {}

You can browse to the Manager and get the next field in the Manager of your Manager.

Hope that gives you some ideas.

Problem saving and loading multiple images in the same file

Hello

I am having a problem, I have a thah program creates a fileOutputSteam and a gzipOutputSteam and finally an imageIO wrote several images, then I do the reverse process, a
FileInputsteam and an inputsteam of gzip, imageIO.read read only image of frist, not the rest.

Can someone help me?
PS: Sorry for my bad English, I'm Spanish

Code:

class Lector {

    // Atributos
    private String ruta;
    private static Collection<Imagen> imagenes;

    /**
     * Clase que carga un fichero .zip lleno de imagenes
     * @param ruta: ruta donde se halla el fichero .zip a cargar
     */
    public Lector(String ruta) {
    }
    /**
     * Constructor sin parametros
     */
    public Lector() {
    }
    /**
     * Metodo que setea el archivo que queremos cargar
     * @param ruta: Ruta del fichero a cargar
     */
    public void setArchivo(String ruta) {
        this.ruta = ruta;
        imagenes = new ArrayList<Imagen>();
    }

    /**
     *
     * @param output: Lugar donde sera representada la salida de la carga de imagenes
     * @return retorna 1 si la carga fue bien y 0 si fue mal
     * @throws FileNotFoundException : excepcion por  no haber encontrado el fichero
     * @throws IOException: excepcion por no poder leer el fichero
     */
    public int cargarImagenes(JTextArea output) throws FileNotFoundException, IOException {
        ZipEntry entrada;
        int contador = 0;
        String archTemp = "temp.jpg";
        FileInputStream fis = new FileInputStream(ruta);
        ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
        BufferedOutputStream dest = null;
        byte[] data = new byte[9000];

        // Leemos secuencialmente el archivo zip
        while ((entrada = zis.getNextEntry()) != null) {
            File bufferTemporal = new File(archTemp);
            System.out.println("Archivo " + entrada.getName() + " cargado!");
            output.append("Archivo " + entrada.getName() + " cargado!\n");
            if (!entrada.isDirectory()) {
                FileOutputStream fos = new FileOutputStream(bufferTemporal);
                dest = new BufferedOutputStream(fos, 9000);

                while ((contador = zis.read(data, 0, 9000)) != -1) {
                    dest.write(data, 0, contador);
                }
                   //Cerramos los buffers
                dest.flush();
                dest.close();
                fos.flush();
                fos.close();

                FileInputStream fin = new FileInputStream(bufferTemporal);
                BufferedImage bi = ImageIO.read(fin);
                //Guardamos el fichero
                imagenes.add(new Imagen(bi, entrada.getName()));
            }
           bufferTemporal.delete();
        }
 
        // Cerramos los bufferes

        fis.close();
        zis.close();

       

        saveAsGzip("dato.gz");
        loadAsGzip("dato.gz");
        return 1;
    }
    /**
     * Funcion que carga la simagenes de dentro del .zip y las guarda en el objeto Imagen
     * @return retorna 1 si la carga fue exitosa
     * @throws FileNotFoundException: Excepcion por no encontrar el archivo
     * @throws IOException: Excepcion por no poder leer el archivo
     */
    public int cargarImagenes() throws FileNotFoundException, IOException {
        ZipEntry entrada;
        int contador = 0;
        String archTemp = "temp.jpg";
        FileInputStream fis = new FileInputStream(ruta);
        ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
        BufferedOutputStream dest = null;
        byte[] data = new byte[9000];

        // Leemos secuencialmente el archivo zip
        while ((entrada = zis.getNextEntry()) != null) {
            File bufferTemporal = new File(archTemp);
            System.out.println("Archivo " + entrada.getName() + " cargado!");

            if (!entrada.isDirectory()) {
                FileOutputStream fos = new FileOutputStream(bufferTemporal);
                dest = new BufferedOutputStream(fos, 9000);

                while ((contador = zis.read(data, 0, 9000)) != -1) {
                    dest.write(data, 0, contador);
                }

                dest.flush();
                dest.close();
                fos.flush();
                fos.close();
                java.io.FileInputStream fin = new FileInputStream(bufferTemporal);
                BufferedImage bi = ImageIO.read(fin);

                imagenes.add(new Imagen(bi, entrada.getName()));
            }
           
        }

        // Cerramos los bufferes
        fis.close();
        zis.close();

        dest.flush();
        dest.close();

        
        return 1;
    }
    /**
     * Funcion que retorna el array de peliculas
     * @return retorna el array de peliculas
     */
    public Collection<Imagen> getImagenes() {
        return imagenes;
    }
    public int saveAsGzip(String pathFichero) throws FileNotFoundException, IOException{

        FileOutputStream fos = new FileOutputStream(new File(pathFichero));
     //GZIPOutputStream gzip = new GZIPOutputStream(fos);
        BufferedImage temp2;
        Imagen img;

        Iterator ite = imagenes.iterator();
        while(ite.hasNext()){
            img = (Imagen) ite.next();
            temp2=img.getBufferedImagen();
            
            boolean i= ImageIO.write(temp2, "JPEG", fos);
            System.out.println(i);

        }
        System.out.println();

        //gzip.finish();
        fos.flush();
         
        fos.close();
       
        //gzip.close();

        return 1;
    }
    public int loadAsGzip(String pathFichero) throws FileNotFoundException, IOException{

        imagenes.clear();
        
        FileInputStream fos = new FileInputStream(new File(pathFichero));
     //GZIPInputStream gzip = new GZIPInputStream(fos);
        BufferedImage img;


            for(int i=0;i<=100; i++){
                

             
                img=ImageIO.read(fos);

                
                if (img != null){System.out.println(img);
                imagenes.add(new Imagen(img, String.valueOf(i)));}
                   
                


        
            }




       // gzip.close();
        fos.close();

        return 1;
    }
}

Published by: sabre150 on October 28, 2010 01:43

Moderator action: added

 tags to source.

805814 wrote:
Oh, sorry again, Ii have commented on all of the code not clear in my best English and posted the image of class:

(sigh) OK, it's an improvement, but it is not yet an NBS! I think it would take me less time to write code that is a NBS that try to explain more (perhaps an example is better here?). In all cases, your code still seems to be mixing the two Zip and GZip. I've never dealt with GZip and could not be disturbed from now just for this problem, so I focused on using the Zip classes.

Try this code:

import java.awt.*;
import java.awt.image.*;
import javax.swing.*;
import javax.imageio.*;
import java.util.*;
import java.util.zip.*;
import java.io.*;

/** SSCCE that demonstrates how to:
1) Create some random images.
2) Store them to a Zip File.
3) Restore them from a Zip File
Please study the code carefully, and note how in a single Java source of less
than 100 lines of code, it manages to achieve the entire demo.!
@author Andrew Thompson */
class StoreImagesAsZip {

    static Random random;
    static int size = 60;

    public static BufferedImage getRandomImage() {
        BufferedImage bi = new BufferedImage(size,size,BufferedImage.TYPE_INT_RGB);

        Graphics2D g = bi.createGraphics();
        GradientPaint gp = new GradientPaint(
            (float)random.nextInt(size),
            (float)random.nextInt(size),
            new Color(random.nextInt(255),random.nextInt(255),random.nextInt(255) ),
            (float)random.nextInt(size),
            (float)random.nextInt(size),
            new Color(random.nextInt(255),random.nextInt(255),random.nextInt(255) )
            );
        g.setPaint(gp);
        g.fillRect(0,0,size,size);

        return bi;
    }

    static public void writeImagesToZip(File file, BufferedImage[] images) throws Exception {
        OutputStream os = new FileOutputStream(file);
        ZipOutputStream zos = new ZipOutputStream(os);
        // Zip does nothing for otherwise compressed media formats such as JPEG and PNG
        zos.setLevel( ZipOutputStream.STORED );

        for (int ii=0; ii< images.length; ii++) {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ImageIO.write(images[ii], "png", baos);

            ZipEntry ze = new ZipEntry( ii + ".png" );
            zos.putNextEntry( ze );
            zos.write( baos.toByteArray() );
            zos.closeEntry();
        }
        zos.flush();
        zos.close();
    }

    static public BufferedImage[] readImagesFromZip(File file) throws Exception {
        ArrayList images = new ArrayList();

        ZipFile zipFile = new ZipFile(file);
        Enumeration en = zipFile.entries();
        while (en.hasMoreElements()) {
            ZipEntry ze = (ZipEntry)en.nextElement();
            InputStream is = zipFile.getInputStream(ze);
            BufferedImage bi = ImageIO.read(is);
            images.add(bi);
        }

        BufferedImage[] imageArray = new BufferedImage[images.size()];
        for (int ii=0; ii


Also note that I now invested a lot of time trying to help you. If you like what I've done, the best way to show that is on the occasion of my responses as "Helpful" or "correct". If the problem is "answered", make sure that mark also.

 
            
            
		     problem when using setFocus? 
			 Hello
I have a problem in the use of setFocus in the text field.
When I use setFocus it contains the definition slider to the textInput field, but until and unless if I click with the mouse its not take keyboard input!
Let me know the solution ASAP
Thanks and greetings
Aruna.S.N.
			 the best way to do this is to write a function small javascript in your HTML page (who will choose the appliction - as is the problem; cant flex focus on the field unless u click in the appliction if your browser has chosen it) - then call this function javascript of your flex application
in flex.
ExternalInterface.call("saveglobalscore",score) ('setBrowserFocus');
usernametxt.setFocus ();
in the html wrapper page
function setBrowserFocus()
{
document.getElementById('${application}').focus ();
}
(when the application is the id of your embedded flex appliction)
This approach works perfectly
		    
            
            
		     Compressing files with local characters 
			 Hello community,
I will compress files with LabVIEW, but the names of files in the zipfiles be annoying especially since I use English characters such as 'a', 'e' etc. If I zip outside labview then the file names are very well, then I guess it's a thing of labview. Can you help me how can I compress these filenames correctly? Remove / change the file names is not an option.
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			 1984 wrote:
I checked the document briefly before I sent my post. I sent the UseUnicode = True, it makes no difference. anyway I don't think it's really applicable according to the case that the problem lies in the file add to zipfile.vi which is password protected. Access roads entering this VI have filenames with the correct characters.
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My recommendation is really just avoid these characters special altogother for now.
And I'm not sure that you would gain a lot by calling a command line utility. Unlike the GUI Windows programs, the command line utility also works with the OEM code page and assume that its parameters are in this code page, so you will need to convert special characters in any case before generating the command line string.
		    
            
            
		     U16 anomaly of image in the container Image Imaq Vision 
			 Someone would have seen this type of anomaly and know a work around.  What's weird, is that I have not seen in constantly.  Image appears correctly in ImageJ.
			 People-
For some reason, u16 TIF images are sometimes not read correctly and it is clearly a Vision problem of OR focus on. The solution is below not unexpectedly Andrey which is on the Mount Rushmore of Vision expert programming.
http://forums.NI.com/T5/machine-vision/open-greyscale-U16-image-problem/m-p/2414022#M38645

Sincerely,
Don
		    
            
            
		     Will not take picture 
			 When I press the button to take a picture it THAT ONLY turns the image stabilizer does not take a picture. It is half of the battery... That's an EOS Rebel XS thanks all awnsers.
			 A camera will not have the photo if it is the development of "One Shot" and the auto-focus mode / manufal switch in focus on the objective (labeled "AF/MF") is in the position of the auto focus AND the camera fails to lock focus.
A camera may not be able to lock wear light is low or if the subject has very low contrast (a plain featureless subject - for example, if you point your camera to the top in a clear blue sky in a day without clouds - which would not focus, even if there is enough light.)
But another reason, that a camera may fail during the update is if the focusing on the lens motor is defective.
BUT... If you take the lens 'manual' mode (AF/MF switch the switch on the position of MF) - or - if you change the mode of development of "AI Servo" in the camera, THEN a camera could take the picture as soon as you press the shutter completely and she will let you know if he was able to focus or not.
This means that we can solve a problem... but reveal another.  Usually go to the update manufal or focus mode to the point of "AI Servo" solves the problem of the aircraft refusing to take the picture... but then, you're stuck with a camera that used autofocus.
Especially when the lens cannot autofocus, if there is enough light and the subject has a lot of contrast (it is not flat), this means that there is a problem with the focus on the lens engine.  You could test that in trying a different objective.
		    
            
            
		     I'm not able to open all the documents, computer says that WIN32 ERRORS won't let me open. 
			 I'M NOT ABLE TO OPEN DOCUMENTS. COMPUTER SAYS WIN32 LET ME NOT OPEN.
			 The first Question of troubleshooting: If the problem is new, what has changed between the time things worked and the time they do not have?
Please quote the exact text of the error message. Do not paraphrase. Where are the documents? Please give the full path; that is C:\Users\your-username\Documents. What version of Vista are you running? The files are only one type of file; for example, Word documents? If Yes, which version of Word you?
More details, you can answer on your system and the problem, the more focused, as you can get. MS - MVP - Elephant Boy computers - don't panic!

 
		 
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