Hi, there.
I have read your description and I know what you want exactly.
I'm a professional mobile app developer, I'm very interested in your project.
I've developed many apps, I've rich experience and knowledge in Android App Development.
We can clear cache and kill another process programmatically..
If you want, I will complete your project perfectly in short term.
I hope, we can discuss more about the project in details.
Best Regards.