Q:

IOS - How to create a modal user/password outside the UIApplication?

I am not sure this can be done at all...
Background: I am constructing an in-house application which means it does not get into appstore so i am not limited by the appstore guidelines.
I have a dylib which loads before the main application. It is a kind of augmenting library for applications. I am using the constructor __attribute__ to load my stuff. In there i would like to put an alertview or any kind of popup which will receive a user/password question. If the password is correct than the user is allowed to continue into the original application.
Since this is in the dylib i do not yet have a UIApplication and i do not want to interfere in the original application or sources.
Suggestions, tips are welcome...
Thanks.

A:

This is how i've done very similar thing in my application:
0) Intercept applicationDidFinishLaunching message, add your own code, run original implementation.
1) Make opaque fullscrean UIWindow (for example, black).  
2) Set its windowLevel to UIWindowLevelAlert + 1 So it hides every other window in app.
3) Add fields for user and password to this UIWindow.

