Shared data storage between mobile and wear app

Question

I am building an android app that has a mobile, wear and shared module. It is an app that stores data with my SampleObject to the SQLiteDatabase.

SampleObject{
     long ID; // Primary key, autoincrement
     Date date;
     String text;
}

All methods regarding users list of SampleObjects are in the shared module. Both mobile and wear can insert, edit and delete objects.

Is there a way to use "shared" database or do I have to use separate DBs for mobile and wear and on wear connect to compare them and merge?

If I have to use separate DBs, what is the best way (and when) to compare them (there can be some deleted items that are still contained in one of DBs)?

Answer 1

There is no shared SQLite database. If your shared data requirements are simple enough to store in SharedPreferences, you could use PrefSyncService, but I've never seen a similar library for syncing SQL data.

In general, though, I would think that the question of when to sync them is going to be driven by your own app logic; there's no "one size fits all" answer for that.