facebook - user changes password and invalidates the access token

Is 开发者_开发知识库any way to keep alive facebook access token also when user changes his password? Even with offline_access ?

No, this is put in place to protect users in the event their account gets hacked or an app starts spamming. They will need to re-authenticate with your application.

Here's a how-to guide for handling this case: https://developers.facebook.com/blog/post/500/

You should probably check the full Authentication document too