Thanks for your reply, and sorry for my late answer. :-)

I tried to get it running as a service but I don't really get how I
have to use services, binders and service connections. I'm reading a
book with an example for services but can't adopt it to my problem.
What I tried is the following:

I created one class for the service, which holds the variable for my
database:
__________________

public class DatabaseService extends Service {

        public DbAdapter mDbAdapter;
        private DatabaseBinder mDatabaseBinder = new DatabaseBinder();

        @Override
        public IBinder onBind(Intent intent) {
                return mDatabaseBinder;
        }

        @Override
        public void onCreate() {
                super.onCreate();
                mDatabaseBinder.mDatabaseService = this;
                mDbAdapter = new DbAdapter(getApplicationContext());
                mDbAdapter.open();
        }

        @Override
        public void onDestroy() {
                super.onDestroy();
                mDatabaseBinder.mDatabaseService = null;
                mDbAdapter.close();
        }

This is my database binder:
__________________

public class DatabaseBinder extends Binder {

        public DatabaseService mDatabaseService;

        public DbAdapter getDbAdapter() {
                return mDatabaseService.mDbAdapter;
        }

And this my service connection:
__________________

public class DbServiceConnection implements ServiceConnection {

        DatabaseBinder mBinder;

        public DbServiceConnection(DatabaseBinder binder) {
                mBinder = binder;
        }

        @Override
        public void onServiceConnected(ComponentName className, IBinder
binder) {
                mBinder = (DatabaseBinder) binder;
        }

        @Override
        public void onServiceDisconnected(ComponentName arg0) {
        }

If I want to use this in my activity with this:

        private DatabaseBinder mDatabaseBinder;
        private DbServiceConnection mServiceConnection = new
DbServiceConnection(mDatabaseBinder);

        final Intent databaseServiceIntent = new Intent(this,
DatabaseService.class);
        this.bindService(databaseServiceIntent, mServiceConnection,
Context.BIND_AUTO_CREATE);

        mDb = mDatabaseBinder.getDbAdapter();

I'm getting a nullpointer exception at the last line. I don't know if
I'm using it right (I guess not :D ), I haven't used services before.
Do you know why it is throwing a Nullpointer exception? Is this the
right way to use a service and bind it in the activity or should I do
it somehow different?

On 19 Jul., 00:30, brucko <geoff.bruck...@gmail.com> wrote: