Hi Alok,
I instantiated my DBAdapter class (presumably your "core layer") from the
(singleton?) class extending android.app.Application:
public class MyApplication extends Application {
private DbAdapter dbAdapter;
/**
* @return dbAdapter, already opened
*/
public DbAdapter getDbAdapter() {
if (dbAdapter == null) {
dbAdapter = new DbAdapter(this);
dbAdapter.open();
}
return dbAdapter;
}
@Override
public void onTerminate() {
Log.d(TAG, "Calling onTerminate...");
if (dbAdapter != null)
dbAdapter.close();
dbAdapter = null;
super.onTerminate();
}
}
I'd be curious to hear what others think. I have occasionally seen sqlite
errors that I havn't root caused, but I can't think why this would be a bad
approach. Any Activity needing a db connection can get it from this
instance, which should be available throughout the app's lifetime.
Steve
On Sun, Dec 20, 2009 at 9:15 AM, Alok Kulkarni <[email protected]> wrote:
> Hi guys,
>
> I have a database with 5 tables in it.There is a core layer which
> communicates with the database and fetches the results and stores them in
> memory temporarily.
> Now my UI layer wishes to display the data retrieved by core layer in the
> UI.
> What i want to have ideally is to create an object of the core class and
> call the DB operations whenever i want.The class which creates this core
> object does not extend activity , but from examples i see , i need to pass
> the activity as a context parameter to SQLiteOpenHelper.What context shd i
> pass in that case ? There is also some concept of AsyncTask in Android but i
> havent yet chkd how to use it.. Please help me on this one.. Thanks..Alok.
>
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