Android :: Database Access

I'm using an sqlite database in my app.

I have this dbhelper class in a services class like so.

CODE:............

In my activity classes I access and keep this application as a local variable like so:

CODE:..............

And my service call looks like this:

CODE:.............

I've added these overrides in to try to get rid of my memory leaks.

CODE:.............

But I can't get my memory leaks to stop.

How to rid myself of these memory leaks? These leaks are of the type:

CODE:..................