Copy/share configurations between paid/free versions of Android app?

Question

My Android app comes both as a free and paid version. I have created a library project and two additional Application projects, one \'Free\' and one \'Paid\' version (signed wit

Answer 1

1. Implement a ContentProvider to expose the stored data in your free version.
2. Ensure the provider is exported (android:exported="true")
3. Declare a permission in your client application. The protection level should be "signature".
4. Require the permission declared in (3) as a readPermission for the provider.
5. In your paid app, add a uses-permission for the permission declared in your free app.
6. Check for the presence of the provider & load the data into your paid app.

This, of course, only works if you are signing the free and paid apps with the same cert (which most sane people do).