问题
How do I identify if an ad was rendered from within the mobile application or rendered on a mobile web browser.
What kind of alternatives exist?
a. Can I distinguish traffic from app or mobile web based on the user agent.
Sample user agent(s) are here as follows, but I am unable to distinguish
Mozilla/5.0 (iPhone; CPU iPhone OS 7_1_1 like Mac OS X) AppleWebKit/537.51.2 (KHTML, like Gecko) Mobile/11D201
b. I also referred from here which discussed same problem.
来源：https://stackoverflow.com/questions/26750657/how-do-i-check-whether-the-user-agent-is-from-the-mobile-app-or-mobile-web