i am try to share the post in facebook. login, publish permission is working finefor the first time. if i delete the app from facebook web it is not asking me reinstalling l
If the user deletes the app from Facebook, the only way your app will know is if you make a graph request, and it fails.
Here are some common strategies for handling errors - https://developers.facebook.com/docs/reference/api/errors/
You should also have a look at the Scrumptious sample that ships with the SDK, there's a handleError() method in SelectionFragment.java that implements the strategies outlined in the link above.