android - Is sharing data between apps with shared UID, and deleting data when last app is uninstalled possible? -


i have several apps sharing same user id, , sharing simple data through file on external storage. know is, if there way share data between applications has following characteristics:

  1. only apps same user id have access data.
  2. all apps shared uid have read/write access.
  3. it isn't dependent on specific app (if have 4 apps work fine combination of these).
  4. and here tricky part: once last app uid uninstalled data deleted also.

basically data should owned applications/the shared uid rather individual application. far can see none of standard data storage possibilities live these requirements, , wondering if there way of achieving this. in advance!


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