Possible to determine installation method of Android app?

Question

Is it possible to determine the installation method of your Android application? Google Play, Amazon, manual install, bundled, etc and if so how? This is a similar quesiton to Detect if app was downloaded from Android Market but in this case the signatures would be the same.

Answer 1

Just bake a value into the APK released to each store, indicating which store (or other distribution method) it is for. This same value could be used to configure all the changes required for that store.