title: Multiple tabs validation process in android
body: <p>I need to implement a very large form which data is to be sent over the internet in android so I need to split it into several Tabs. </p>
  
  <p>All the tabs have in common a validation process that checks the activities in every tab before the data is sent.</p>
  
  <p>What's the best way to accomplish this ? Is it necessary/mandatory to use an ActivityGroup or do TabHost and TabActivity provide the infrastructure to implement it ?</p>
  
  <p>Thanks</p>