Can I access the URLs of all open websites on iPhone's mobile Safari?

I am thin开发者_运维知识库king about creating an iPhone App and I wonder if it is possible for an app to access the URLs websites, which are opened in mobile Safari?

I don't think this is possible. Applications in iOS are sandboxed, meaning they live in their own private space. There is no official way to probe one process from the other.

A related thing is that you can register you own URI scheme, so that websites can link to yourapp:// which will fire yourapp. But that's the other way around.