my game should know if another of my games is installed on the same device.
On iOS I tell the user in game #1 that for some bonus content he needs to start game #2 using a button.
Now I open game #2 using an URL scheme, when system.openURL() returns "true" (since build #968) I unlock the bonus content in game #1, otherwise I send the user directly to the App Store to download game #2. :-)
But I don't have the slightest idea how to implement this for Android...
[ And I would like not to do stuff like generating special IDs in one app that the user has to input in the other app, or setting flags in a remote server, or other awkward workarounds ]
Thanks & best,