title: dynamic activity
body: <p>I have made a layout for my app which uses a lot of activities. I sent my app to my friend and in which he said my layout was all wrong he told me i need to not use as many activitys and dailogs and to make the activity dynamic. He told me to read about this and it will help me. Now as you see in the link. i have tryed my best to show what i am after.
  I have been looking on the net but cant find what am after 
  I get what he's saying i can sort of change view on the same activity but i cant see how i can use all this information and just use 1 activity. seem like to me the app will run slow
  If anyone can show me a link to a blog, site,video etc, to show me how this is done </p>