iPhoneSettings.model isn't enough - I need the exact device!

Unity Engine
,
1

The docs say iPhoneSettings.model only returns ‘iPhone’ or ‘iPod Touch’. This is not enough! How do I get the exact model? I need to know if it’s an iPhone 3G, 3GS, iPod Touch 2nd Gen, etc…

I’m trying to make sure every device has optimal performance.

I know this could cause problems as new devices are added, but the way I was planning to do this was to have a default minimal setup for 1st gen and unknown devices and enable additional graphical fluff for known, more powerful devices…

any ideas?

2

If it’s available from the API, just find out in the ObjectiveC start up code and write it to a playerpref setting for use in Unity.

3

Apple’s SDK’s (i.e. [[UIDevice currentDevice] model]) just returns “iPhone” or “iPod Touch” – and that’s it. My 3GS is an “iPhone”. Luckily Erica Sadun at ArsTechnica made a nice UIDevice category that uses sysctl() to get a better name: http://arstechnica.com/apple/guides/2009/03/iphone-dev-determining-your-platform.ars

Add her two files to your project, and then in your applicationDidFinishLaunching: add this:

   [[NSUserDefaults standardUserDefaults] setObject: [[UIDevice currentDevice] platformString] forKey: @"platform"];

And when your Unity game starts you’ll have a nice string like “iPhone 3G” in the player prefs. Erica’s code predates the 3GS, so you can add this to her header:

#define IPHONE_3GS_NAMESTRING @"iPhone 3GS"

and add this to the logical spot in platformString:

	if ([platform isEqualToString:@"iPhone2,1"]) return IPHONE_3GS_NAMESTRING;

And you should be set.

4

bliprob comes through again! Sweet.

5

great, thx, rob! works like a charm. (can’t test with 3GS though yet…)

I put the first line into PreInit though… so it is amongst friends…

6

Is there a way to automate the process of adding these two files? If I drop them into the Enhancement-Pack’s XCode-Folder they get copied over, but I get an error when building. If I drag the same two files into XCode manually, it works…

7

You can edit the AppleScripts, but it’s probably simpler to just add this to the end of AppController+additions.mm:

@implementation UIDevice (stinkbot)

- (NSString *) platform
{
	size_t size;
	sysctlbyname("hw.machine", NULL, &size, NULL, 0);
	char *machine = (char*) malloc(size);
	sysctlbyname("hw.machine", machine, &size, NULL, 0);
	NSString *platform = [NSString stringWithCString:machine];
	free(machine);
	return platform;
}

- (NSString *) platformString
{
	NSString *platform = [self platform];
	if ([platform isEqualToString:@"iPhone1,1"]) return @"iPhone";
	if ([platform isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
	if ([platform isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";
	if ([platform isEqualToString:@"iPod1,1"])   return @"iPod Touch";
	if ([platform isEqualToString:@"iPod2,1"])   return @"iPod Touch 2G";
	if ([platform isEqualToString:@"iPod3,1"])   return @"iPod Touch 3G";
	return NULL;
}
@end

That way you don’t need Erica’s two files, and everything is neatly self-contained in the one file that does get added. (You’ll get a warning in preInit where this is called, since there’s no header, but just ignore the warning for now.)

Note that I added code for the iPod Touch 3G, based on the recent reports of “iPod3,1” being seen in server logs. So you should be slightly future-proofed, too.

8

thanks a lot!