I'm currently writing an application that will be downloading
potentially large files from the net (50-100 mb).  I am currently
using a URLConnection and things are working great on my emulator.
However, I'm fairly concerned about how this will work in the real
world.  I have found very little discussions or documentation on this
subject.

What happens when the network connection switches (3g -> wifi / wifi -
> 3g)?  Will the download magically switch?  Will it timeout/fail.  If
the download were on 3g and wifi came on, would it remain on 3g and
succeed?

>From a big picture level, I'm trying to answer the following
questions:
1.  Will I be able to reliably download large files without writing an
extensive amount of retry / resume functionality?
2.  Is it possible to give the user the option of enabling downloads
only on wifi for reliability/battery purposes?  I'm not sure if it
will auto-drop to 3g/edge if the wifi connection is lost.

Has anyone dealt with this?  I would really appreciate any advice
regarding these issues.

Regards,
Eddie

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