I have a dual-sim Android phone and during the morning I use one of the SIM cards for the data connection, and during the evening I use the other one. It's a pita to manually switch from one card to the other twice every day, so I thought I could create a simple app that does the switching at a given time.
I've been reading and looks like starting at version 5.1 of Android's API, theres a SubscriptionManager class which offers info about current subscriptions (data, voice, sms, etc), but as far as I've seen there're a lot of get methods but no setters anywhere.
Does the Android API offer a way of setting the SIM card used in the data connection? I guess it does, because otherwise it wouldn't be possible to change it from the settings panel.
