Hi all u geeks out there... i'm a novice in Android programming though had tried my hand on blackberry...
currently i was asked 4 the possibility of making an application which can control access to other applications on Android... I mean something like asking password everytime some selected apps are opened... My question is.. "is it possible to make an application which does something like this"... Any feedback will be appreciated.. Thanx in advance guys...
You would be able to do this by modifying the OS. Or perhaps writing a new home screen.
It is not possible to create an SDK application as you describe. If you can do that, then malware can do that, holding a user's phone hostage.
As tm1brt indicates, you may be able to do this via your own custom firmware and modifications to the Android OS, but then that will only affect your phones (personal ones or ones you are manufacturing). And modifying the Android OS is not trivial.