BlackBerry Development: How to add resource files(to the filesystem/sdcard) during app installation

If you’re familiar with the BlackBerry app deployment, you’ll know that there’re 2 primary ways of installation – the OTA and the desktop. The former requires the .cod and .jad files to be present while the latter requires the .alx and .cod files.

Recently, I had to figure out a way to package a file, say, “test.txt” and place that into the filesystem…during installation. I’m not sure if there’s a better way but I learnt that one way was to basically to open an InputStream pointing to the source “test.txt”, use the FileConnection class to create a file “test.txt” within the BlackBerry device and then use the OutputStream to basically write to the filesystem.

Perhaps sample code will make more sense:-

// Open inputstream to source file
String fileName = "test.txt";
InputStream inputStream = getClass().getResourceAsStream(fileName);
int fileLen = inputStream.available();
byte[] data = new byte[fileLen];
String target = "file:///store/home/whatever/"+fileName;

// Creates a file on the BB with the same name as the source file
FileConnection saveFile = (FileConnection)Connector.open(target);
saveFile.create();

// Opens the outputstream and writes everything from the inputstream to the file on the BB
OutputStream outputStream = saveFile.openOutputStream();
outputStream.write(data);
outputStream.close();

If the resource file(s) are huge, it would certainly bloat the .cod file.

Somehow I find this quite inefficient…is there a better way to do this?

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