Android intent filter: associate app with file extension

[neuro]

My question: how to associate app with file extension using Android intent filter in LAMW?
The page below provides guidelines for Java, but it is not clear how to accomplish this in LAMW.

https://stackoverflow.com/questions/3760276/android-intent-filter-associate-app-with-file-extension
Android intent filter: associate app with file extension

As far as I understand, we need to:
1) modify “AndroidManifest.xml”;
2) in LAMW app needs to process intent filter, as far I as understand, this should be done in jBroadcastReceiver1.Receiver event, however there are no sample showing how to accomplish that.