Recording of images issues

Hi all

I am new to Java, Blackberry and Eclipse so please forgive my lack of knowledge on what may be the simple understanding.  I have just a few little random basic questions.

I use Eclipse with the JDE 4.7 plugin and development for the storm.  I use the Simulator for development.

I was instructed to write an application that needs to record 2 different pieces of information.  The application must save an array of bool, so it can be accessed on the next time the application is loaded.   For this method, I use persitant store.

First question:

Persistent would consider a good method, or should I be save this data in another case?

Now on the my main concern.  Our application has a bunch of files for a game. After that part of the game is finished, we want the user to then be able to take a picture of the game and store it on the phone so that the user can then select as wallpaper.

For this method, I've been through a code and I promise you, I searched high and low and have not found a solution that I understand very well.

I noticed people using a "connector" to open a path to the file system/or create it.  However, I am having a hard time understanding how the Simulator affects its filepath and how the real phone its filepath.

If someone could help point me in the right direction on how to save a file of our application on the phone, so it can be used as wallpaper, I would be very happy.

Here's a piece of how I'm saving my code.  I get an exc of IO.  But for an IO exc references claim that the firewall does not allow a connection.  I'm not connect through a firewall, then, how is this possible?

m_filename = the path to a file in our application.

The code in bold is were the exception is thrown.

Thank you in advance for anyone of help.

Bitmap _bitmap = Bitmap.getBitmapResource(m_filename);PNGEncodedImage _pngEncodedImage = PNGEncodedImage.encode(_bitmap);

try{    String fileDir = System.getProperty("fileconn.dir.memorycard");    if (fileDir == null)    {  Dialog.alert("ERROR:  fileDir = null");    }    else    }        Dialog.alert("fileDir = " + fileDir);    }    FileConnection fc = (FileConnection)    Connector.open( fileDir + m_filename,Connector.READ_WRITE);

    if(!fc.exists())    fc.create();    OutputStream oStream = fc.openOutputStream();    oStream.write(_pngEncodedImage.getData());    oStream.flush();    oStream.close();     fc.close();     }    catch(Exception e){    Dialog.alert("EXC in saving image.  EXC = "+e);}

The solution to the half of my problem was this:

First, I created a directory with a separate connector.  Then I closed this connector and set up a second for the image.

Then I saved my image in the new directory.

The call of "connector.open" () looks like this for the two respective calls:

// to create a directoryConnector.open("file:///SDCard/BlackBerry/pictures/myDirectory/",Connector.READ_WRITE);

// to save myFile in the directoryConnector.open("file:///SDCard/BlackBerry/pictures/myDirectory/myFile.png", Connector.READ_WRITE);

I will mark this as comprehensive and open a new thread to store petrol issues I've had.  That way I hope that someone will learn something.

If anyone has questions, feel free to post it here or private message me and I hopefully will be able to explain what I did better.

Tags: BlackBerry Developers

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