How to detect iPhone 5 (widescreen devices)?

Question

I've just upgraded to XCode 4.5 GM and found out that you can now apply the '4" Retina' size to your view controller in the storyboard.

Now if I want to create an application that runs on both iPhone 4 and 5, of course I have to build every window twice, but I also have to detect whether the user has an iPhone with 3.5" or 4" screen and then apply the view.

How should I do that?

Answer 1

Relying in the size is wrong in so many levels. How about we ask to the system?

- (NSString *) getDeviceModel
{
    struct utsname systemInfo;
    uname(&systemInfo);
    return [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
}

Taken from Best way to detect hardware type, iPhone4 or iPhone5?, edzio27 answer.

Answer 2

This way you can detect device family.

    #import <sys/utsname.h>
    NSString* deviceName()
    {
        struct utsname systemInformation;
        uname(&systemInformation);
        NSString *result = [NSString stringWithCString:systemInformation.machine
                                              encoding:NSUTF8StringEncoding];
        return result;
    }

    #define isIPhone5  [deviceName() rangeOfString:@"iPhone5,"].location != NSNotFound
    #define isIPhone5S [deviceName() rangeOfString:@"iPhone6,"].location != NSNotFound

Answer 3

Really simple solution

if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
{
    CGSize result = [[UIScreen mainScreen] bounds].size;
    if(result.height == 480)
    {
        // iPhone Classic
    }
    if(result.height == 568)
    {
        // iPhone 5
    }
}

Answer 4

This has been answered a hundred times but this solution worked the best for me. It's a simple helper function and doesn't require extending a system class.

Swift 3 Helper:

func phoneSizeInInches(defaultValue: Float = 4.7) -> Float {
    switch (UIScreen.main.nativeBounds.size.height) {
    case 960, 480:
        return 3.5
    case 1136:
        return 4
    case 1334:
        return 4.7
    case 2208:
        return 5.5
    default:
        return defaultValue
    }
}

This is because it's easy to memorize a phone's inch sizes, like, "5.5 inch" or "4.7 inch" device but difficult to remember the exact pixel sizes.

if phoneSizeInInches() == 4 {
  //do something with only 4 inch iPhones
}

This also gives you the opportunity to do something like this:

if phoneSizeInInches() < 5.5 {
  //do something all iPhones smaller than the plus
}

The "defaultValue" ensures that your code will always fallback to a safe size if Apple releases a new device size and you haven't updated your app yet.

if phoneSizeInInches(defaultValue: 4.7) == 4 {
    //if a new iPhone size is introduced, your code will default to behaving like a 4.7 inch iPhone
}

Note that this is specific for phone apps, will need some changes for universal ones.

Answer 5

if ((int)[[UIScreen mainScreen] bounds].size.height == 568)
{
    // This is iPhone 5 screen
} else {
    // This is iPhone 4 screen
}

Answer 6

CGFloat height = [UIScreen mainScreen].bounds.size.height;

NSLog(@"screen soze is %f",height);

  if (height>550) {

          // 4" screen-do some thing
     }

  else if (height<500) {

        // 3.5 " screen- do some thing

     }