LVL Sample/suggested uses needs enhancements to be an easy to use licensing sample

[GoogleCodeExporter]

1. Ideally the sample would be a single synchronous call to check the license 
as an option if the license wasn't cached.  It would make some of the 
processing much easier during the onCreate logic.  If not actually synchronous 
in a way that acts that way with 2-3 lines of actual license code to simplify 
this.
2.  If your main activity is shown and it takes a while for the network 
response on a background thread the current sample/suggestions would leave the 
main activity open to use?
3. When the alert dialog pops up the current one can be easily back buttoned, 
or search buttoned off the screen leaving a totally useable main activity.
4. Perhaps should show a secure way the license activity can launch an internal 
main activity that just validates the license so the main activity isn't left 
open.
5. If some other keypress/cycling option is discovered to remove the dialog, 
then the main activity is fully accessible, perhaps show how to protect the 
main activity window while it is not licensed.
6. Show how retry logic can be handled without exposing the main activity to 
use.

What version of the product are you using? On what operating system?
2.2 droid x

Please provide any additional information below.

Original issue reported on code.google.com by DavesA...@gmail.com on 1 Oct 2010 at 12:44