SQLiteReadOnlyDatabaseException: attempt to write a readonly database (code 1032)

Question

So in some rare instances, I\'m seeing the \"attempt to write a readonly database\" message, and I can\'t figure out where the problem lies. I\'ll start with the stacktrace

Answer 1

I'm having a similar issue, which is really annoying is that it happends at any time, it's difficult to replicate the exact conditions that make it happen. I only close the DDBB in the ondestroy method of the MainActivity class. What I have done is to add a try / catch in every use of the db and add the following catch, in this case it is in the middle of a while loop, in other functions I call the function again once:

catch (SQLException e) {
    e.printStackTrace();
    Log.d(TAG, "MainService: error in AccSaveToDB with "+mainDB.getPath()+" in iteration "+j+". Closing and re-opening DB");
    DBHelper.close();
    mainDB.close();
    j--;
}

And this at the begining of each function that access to the database:

if (mainDB==null || !mainDB.isOpen()) {
    DBHelper = DefSQLiteHelper.getInstance(getApplicationContext(), "Data.db", null, 1);
    mainDB = DBHelper.getWritableDatabase();
}

So far I still have sometime this error, I couldn't figure out the cause yet, but at least my app doesn't crash and it resumes what it has to do. I can't see if the file is being deleted, but this solutions is working for me