Testing app on iOS6 and iOS 7 - UPDATED - ios6

Question

I need to test my app on both iOS 6 and iOS 7. Here's what i have done so far: I have developed an app on iOS 7, but i need to support iOS 6 too.
But because i need to follow slightly different layout for iOS 6 and iOS 7, i am making separate xibs for both. I have tested the app for iOS 7, and now i need to do it for iOS 6.
I have downloaded iOS 6 simulator already. Note that i don't have a real iOS 6 device, i have only iOS 7 device. Now please tell me how do i test it on iOS 6 and how to i detect programmatically which iOS version my phone is running.
In the code, I need to check the version of the iOS that the device is using, and then load the xibs accordingly.
This is the code that i am using to do that.
float sysVer = [[[UIDevice currentDevice] systemVersion] floatValue];
if (sysVer >= 7.0)
{
NSLog(#"this is ios 7");
}
else
{
NSLog(#"this is ios 6");
}
I am currently testing it on my iPhone 5 that has iOS 7 on it.
So, i have tested my app on iOS 7, but when testing it on iOS 6 (by choosing "deployment target" as iOS 6 in target settings and project settings) , i am still seeing on console - this is ios 7.
However, the keyboard appearance is iOS6-like..!!
Why is this happening?? why am i not able to check the iOS version???

Answer 1

Deployment target and system version aren't the same.
Basically, you're running an app compiled for iOS 6 on an iOS 7 simulator. That's why it reports a version of 7, and uses the style of iOS 6.
You need to run your app on a simulated iOS 6 by choosing it from the target dropdown at the top left of Xcode:
(Maybe you haven't downloaded the simulators for iOS 6, first check Xcode preferences).
Or better yet, on an actual iOS 6 device.
Anyway, if you intend to use the native iOS 7 look on iOS 7 devices, never lower the deployment target to 6. Keep it at 7.