If you have used SharePreference’s MULTI_PROCESS_MODE, you may know that it’s not reliable.

See the documentation of the SharedPreferences you might have seen one of these warnings:

Note: currently this class does not support use across multiple processes. This will be added later.

Google even deprecated the multiprocess support because it never worked relieable

DPreference is a way solving this problem powered by a ContentProvider. It works in multiple processed mode safely. You can declare your provider in a remote process, if you don’t declare it in AndroidManifest.xml, it is operating in main process by default.

Features

  • works multiprocess safely
  • the same api like SharePreference
  • compat old app versions, don’t need to upgrade. DPreference is just a wrapper of original sharepreference with contentprovider.

Usage

       DPreference dPreference = new DPreference(context, "default");
       dPreference.setPrefString( "key", "value");

Copy the code

Compare With Tray(Github.com/grandcentri…)

  • DPreference setString called 1000 times cost : 375 ms getString called 1000 times cost : 186 ms
  • Tray setString called 1000 times cost : 13699 ms getString called 1000 times cost : 3496 ms

So DPreference has a better performance.