mmm I'm not really sure what you are trying to achieve. Exactly, at what
times do you want to open/close the db? The db should stay open while your
application is running? So, even when you switch among activities (yours
activities)?
On Thu, Jul 15, 2010 at 6:36 PM, Bender <abende...@googlemail.com> wrote:
> @YuviDroid
>
> I'm trying the following at the moment: the open() only gets called in
> both onCreate() methods with:
>
> mDb = new DbAdapter(this);
> if(mDb.getDatabase() == null || !mDb.getDatabase().isOpen()) {
> mDb.open();
> }
>
> The problem I'm having with this is, that there is always a new
> DbAdapter created which is fine when the activity is created the first
> time. But this way "mDb.getDatabase() == null" will be always true
> because its a new mDb.
>
> So I either need to find a way to check if the database is opened
> without "mDb" or need to remember mDb even if the activity is stopped.
>
> @Kostya Vasilyev
>
> I tried that, but then my app crashes while switching between
> activities. When I was searching for the error I put logs in the
> open() and close() methods by my DbAdapter and I could see the
> following:
>
> * open() (app, activity1 started)
> * open() (i hit a button in activity1, activity2 is starting and
> open is called within onStart)
> * close() (activity1 is stopped, in onStop close is called)
>
> When I go back to activity1 it throws an exception because the
> database is closed. -.-
>
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