When to use an aidl based service?

Question

Under what circumstances would using AIDL to define a service interface be the correct decision (rather than just creating an extension to the service class)?

Answer 1

1.when to use aidl based service.

A few benefits can be gained by segment part of your code into backend service:

• decouple front-end and back-end
• memory/cpu intensive processing can be stacked to backend service, GC in service will not affect front-end user experience
• service crash will not bring down the whole APP

2.how to create such a service

I have written a good library, you can refer as an example http://github.com/zhchang/hogwarts

Answer 2

You need to use AIDL if you want a class outside of your application's process to access the Service. If you're only using the service from inside your application, you can use a local service.