How to change denied/granted permission in Android M?

Question

How can I give the user a chance to change his permissions in the App, which he has already set to granted/denied?

Let\'s say a user denied a permission. Later he want\

Answer 1

Yes you can do that.

There is callback if onRequestPermissionsResult in which you get to know if user has granted permission or not. If user has not granted permission you can again request for the same whenever required.