How to access a variable present in a service

I want to access a variable present in a service from another service/an act开发者_如何学Civity....

Can anyone give an idea?

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To communicate between two service or activity, you need to use AIDL
It is not really difficult to do, and there is a lot of tutorial like this.

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You can make a public getter for that variable in your Service class, bind to that service, and access the getter to give you that variable.

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If what you mean is that you want to access the variable after you close and open the app, then you're probably looking for SharedPreferences. Note that this requires a context (an activity or service).

To store:

int data = 5;
SharedPreferences storage = getSharedPreferences("storage", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = storage.edit();
editor.putInt("myInt", data);
editor.commit();

To get:

SharedPreferences storage = getSharedPreferences("storage", Context.MODE_PRIVATE);
int data = storage.getInt("myInt", 0);