How to give temporary access to some files on internal storage to other applications?

Question

I have application A and application B, than I have some file on the A application and I want to make the file available for app B. The file is in the internal storage in the private app data. What should I do ? Is there some permission to give to the file ? is there some specific way of creating intents ???

how does work the process for these kinds of files, I mean if it was a file in the sdcard would be very easy ....

Answer 1

You need to use a Content Provider in your app.

From the Android Dev page:

Content providers store and retrieve data and make it accessible to all applications. They're the only way to share data across applications; there's no common storage area that all Android packages can access.

Of course, Application B will need to be aware of your provider and able to use it.