Android maintains one type of data connection at a time - either Wifi or
cellular (which can vary: CDMA / EDGE / HSDPA, etc).
You can obtain current connection info:
http://developer.android.com/reference/android/net/ConnectivityManager.html
and be notified when connectivity type and/or availability changes (see
"android.net.conn.CONNECTIVITY_CHANGE" in the link above).
To my knowledge, existing network connections don't automatically fail
over, and this includes http connections (which is what I'm guessing you
are asking about).
The reason for this that Wifi and cellular data connections can belong
to entirely unrelated networks, and doing graceful failover would
require notifying the other endpoint about the phone's new address.
-- Kostya
16.07.2010 15:24, Lieuwe пишет:
Hi,
I have some code that uses a network connection .. I create a
connection by calling openConnection() on a URL object.
Is there any documentation that explains how this process works? Which
access point is being used? When that access point becomes invalid,
will it automatically switch to another accespoint? etc.
I would like to use only WIFI access points and otherwise fail even
tho 3G or GPRS could be available, is that possible?
Lew
--
Kostya Vasilev -- WiFi Manager + pretty widget -- http://kmansoft.wordpress.com
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