I want to be able to download a file with a particular extension from the \'net, and have it passed to my application to deal with it, but I haven\'t been able to figure out
None of the above work properly, for VIEW or SEND actions, if the suffix is not registered with a MIME type in Android's system=wide MIME database. The only settings I've found that fire for the specified suffix include android:mimeType="*/*", but then the action fires for ALL files. Clearly NOT what you want!
I can't find any proper solution without adding the mime and suffix to the Android mime database, so far, I haven't found a way to do that. If anyone knows, a pointer would be terrific.