activities

I have an application that is type soft phone; it has 3 simple activities: 1. Registration of credentials 2. Dialpad 3. Calls; 4. Phone service that starts at boot 5. start that starts phone when user applies task killer everything works fine until the user comes up with the genius of applying...

What is the best practice in B4A when making multiple Activities / Panels (vb6 frames and panels) in a single Activity? IE: Where multiple tasks and data can be showed an manipulated in a vb6 form on a panel or frame. For example a form may have 4 frames one with data manipulation properties...