How to create/disable intent-filter programmatically?

Question

I have three activity and three Intent Filters for them in the Android Manifest.

Answer 1

An intent filter is an instance of the IntentFilter class. However, since the Android system must know about the capabilities of a component before it can launch that component, intent filters are generally not set up in Java code, but in the application's manifest file (AndroidManifest.xml) as elements. (The one exception would be filters for broadcast receivers that are registered dynamically by calling Context.registerReceiver(); they are directly created as IntentFilter objects.)

source: http://developer.android.com/guide/components/intents-filters.html

Also, see this: https://stackoverflow.com/a/10403074/832776