android - Share info between two processes - what's the safest way? -

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i have app 2 processes - mainactivity , background service. need same information in both, , info comes server (a json response). loading json both processes, json may bigger it's pretty inefficient load twice.

what safest or best practice share info?

  • broadcast , copy json mainactivity service - assume safe practice , broadcast won't lost
  • use sharedpreferences store locally , both consume "local" json until app closed. according this question sharedpreferences works fine between processes.

any other suggestion/recommendation appreciated.

thanks in advance!

most common way sending broadcast , should avoid using singletons, more information see link

android , restful services

it's better take @ event bus

as doc says :

simplifies communication between components

  • decouples event senders , receivers
  • performs activities, fragments, , background threads
  • avoids complex , error-prone dependencies , life cycle issues

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