Detects iOS 7.1 version

Question

I use this code

#define IS_IOS7 (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1)

To find if the app is running on iOS7. But I now need to know if it runs on iOS7.1 but there isn't any NSFoundationVersionNumber_iOS_7_0 and NSFoundationVersionNumber_iOS_7_1

I know the definition of

#define NSFoundationVersionNumber_iOS_6_1  993.00

So maybe I can compare with a number higher than 993 but I don't know. Someone gets a safe and reliable solution ?

Looks like 7.1 is 1047.25 – Mike Pollard Mar 13 '14 at 09:39 — Mike Pollard, Mar 13 '14 at 09:39

score 9 · Accepted Answer · edited May 23 '17 at 11:45

There are several ways to do this, and you can easily find them in several answers here on SO. Here are some:

[[UIDevice currentDevice] systemVersion]

Slightly more complex, with test:

if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1) {
    // iOS7...
}

You can add a more complete way to test for version like this:

/*
 *  System Versioning Preprocessor Macros
 */ 

#define SYSTEM_VERSION_EQUAL_TO(v)                  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v)              ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v)                 ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v)     ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)

/*
 *  Usage
 */ 

if (SYSTEM_VERSION_LESS_THAN(@"4.0")) {
    ...
}

if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"3.1.1")) {
    ...
}

Sources:

How to check iOS version?

How can we programmatically detect which iOS version is device running on?

It is good, but it works slower, than NSFoundationVerstionNumber. — Dzmitry, Jun 11 '14 at 14:22
@Dzmitry What is slower? I proposed 3 methods, where NSFoundationVersionNumber is the second... — Marius Waldal, Jun 11 '14 at 18:22
Version at number 3 works slower than version at number 2. I checked it. — Dzmitry, Jun 12 '14 at 14:25
Yes, probably. But it's more fine-grained if you need that. Version 2 is probably the best for most cases. Thanks for sharing your results, though. — Marius Waldal, Jun 12 '14 at 18:13

score 2 · Answer 2 · answered Mar 13 '14 at 13:00

2

Try below code

 float fOSVersion=[[[UIDevice currentDevice] systemVersion] floatValue];
     if(fOSVersion>7.0)//if it is greater than 7.0
     {
          //do your stuff here          
     }

answered Mar 13 '14 at 13:00

svrushal

1,612
14
25

score 1 · Answer 3 · answered Mar 13 '14 at 09:40

Define this marco

#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)

And you can check version like this

if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.1")){
   //do something
}

Detects iOS 7.1 version

3 Answers3