How to detect iOS settings screen and pop up a UIView

Question

I want a password protected settings screen for iOS. For that when the user navigates to the settings screen I hope to popup a UIView and ask for the password. For that I want to know two things

1. How to detect the user has moved to the settings screen.
2. How to pop up my UIView(or else at lest an alertview) within the settings screen.

Answer 1

Simple answer is: you can't. Incorporate the protected settings within the app.

Answer 2

这是不可能的，您的应用程序只能在自己的范围内运行，您无法以任何方式监视或控制用户在应用程序外手机中的操作。