Sharing String between two applications

Question

I have two applications and I want to be able to share a String value between them. For example: user changes the String in app A, when app B is launched, I want it to read the updated String (and vice versa).

I was trying to use SharedPreferences with Context.MODE_WORLD_WRITABLE, but it's been deprecated.

How can I achieve this?

EDIT: App A has to save the value without launching app B. App B has to be able to read that value without launching app A. I looked at ContentProviders, but they look too complex, especially for a simple String sharing.

Answer 1

Try http://developer.android.com/training/sharing/send.html or http://developer.android.com/guide/topics/providers/content-providers.html to share data between 2 applications

Answer 2

One option is use webserver for this. for example store value in web server from app1 and access this value from app2

option two is use content providers. Through the content provider, other apps can query or even modify the data (if the content provider allows it)

Answer 3

Simply put:

• one application needs to send intent with data
• the other one needs to listen for it with brodcast receiver.
• Content provider is probably not the thing you are looking for.

here is good tutorial for brodcast receiver