Problem in opening a card encrypted database

Hello

I'm having problems when trying to open a connection to a database sqlite stored on the SD card. I'm moving the file from database on the network when the application is run first, and if the phone is set to encrypt files from media card then it is written with the suffix ".rem". Then I try to open a connection to the database by using the following:

DatabaseFactory.open(dbPath)

dbPath here is a URI pointing to ' / SDCard/data/database.db' is the file that I downloaded on the network. With encryption disabled it works fine and I can open the database and run queries on it etc. However, with encryption on, I get the following exception:

net.rim.device.api.database.DatabaseIOException: file not found

I tried it change at the first glance to 'database.db.rem' in the case of encryption but then receive this error:

net.rim.device.api.database.DatabaseIOException: decryption header error

I don't know how to get around this, because I can't find a way to override the settings for encryption on the phone and write the file of database to the SD card without encryption. Or maybe is there a way I can decrypt the database file after writing it if necessary?

Anyone have any ideas on how to solve this problem?

Thank you

It is a known problem. Fortunately, the following workaround solution should solve the problem for you:

Instead of download the .db and then open it directly in SQLite using the DatabaseFactory class, follow these steps:

1. create the database (file) using the DatabaseFactory class.
2. close the database.
3. open a connection file in the database file that was created in step 1 and 2
4 truncate the file to 0 by calling FileConnection.truncate (0)
5. download the database on the network and write the data in the file previously created using FileConnection.openOutputStream)
6. close the connection files
7. now re-open the database using the DatabaseFactory class and your SQL should work as expected.

Creating the file database using the results in the file DatabaseFactory class *not* marked as requiring encryption.

I hope it works for you.

Tags: BlackBerry Developers

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