[android-developers] How to switch the mobile network in program?

I searched the forum but didn't get the answer. Currently I have 2 mobile networks for my mobile andriod say they are A and B. A has EDGE and B only has GPRS. Is there a way to automatically detect the mobile networks if there are A and B then choose A? Or just simplely choose A no matter whether

[android-developers] How to switch the mobile network in program?

Peace upon you , I searched more but didn't get the answer. Currently I have 2 mobile networks for my mobile say they are A and B. Is there a way to automatically detect the mobile networks if there are A and B then choose A? Or just simplely choose A no matter whether there is B availible? I want