Well you just need to detect the device and the numbers are constant:
Screen information:
iPhone 2G/3G/3GS, iPod touch 1G/2G/3G: 320x480px, 163dpi
iPad mini 1G: 1024x768px, 163dpi
iPhone 4/4S, iPod touch 4G: 640x960px, 326dpi
iPhone 5/5C/5S, iPod touch 5G: 640x1136px, 326dpi
iPad mini 2G: 2048x1536px, 326dpi
iPad 1G/2: 1024x768px, 132dpi
iPad 3G/4G/Air: 2048x1536px, 264dpi
Device model identifier (readable from uname(2)):
iPhone1,1 = iPhone 2G
iPhone1,2 = iPhone 3G
iPhone2,1 = iPhone 3GS
iPhone3,* = iPhone 4
iPhone4,1 = iPhone 4S
iPhone5,{1..3} = iPhone 5
iPhone5,{4..6} = iPhone 5C
iPhone6,* = iPhone 5S
iPod1,1 = iPod touch 1G
iPod2,1 = iPod touch 2G
iPod3,1 = iPod touch 3G
iPod4,1 = iPod touch 4G
iPod5,1 = iPod touch 5G
iPad1,1 = iPad 1G
iPad2,{1..4} = iPad 2
iPad2,{5..7} = iPad mini 1G
iPad3,{1..3} = iPad 3G
iPad3,{4..6} = iPad 4G
iPad4,{1..3} = iPad Air
iPad4,{4..6} = iPad mini 2G
On Nov 26, 2013, at 16:57, Roland King <r...@rols.org> wrote:
> no that just gives you the total number of pixels on the screen, I know that,
> that's not a problem.
>
> That is not the screen physical size (ie X cm x Y cm) and you can't figure
> out if you want something to be a given physical size, which I did, how many
> points it should be. In order to know the physical screen size you would need
> an API point which either returns it directly, or returns the pixel density
> in px/cm.
>
> Anyway I went with the suggestion of an earlier poster and scaled up so it
> was nearly as big as I wanted on the mini, and bigger than I really wanted on
> the iPad, both using the same pointsize for the elements. And that's not a
> bad compromise (in fact on the larger iPad the bigger test cards are very
> clear and you don't really notice they are .. a bit huge). Problem solved,
> one interface for either of the two sizes of iPad, and the iPhone was never a
> problem.
>
> I still would like that API point, I shall file a bug which will be duped.
>
> On 26 Nov, 2013, at 4:18 pm, Jacky.Seraph Mu <jackyser...@gmail.com> wrote:
>
>> Maybe you can refer to
>> [UIScreen mainScreen].scale and [UIScreen mainScreen].bounds
>>
>> The scale tells you the pixels per point.
>> The bounds provides you the whole screen size in point.
>>
>> To get the real size per pixel:
>> scale * bounds
>>
>>
>> Cheers
>>
>> Jack.S Mu
>>
>>
>>
>> 2013/11/25 Roland King <r...@rols.org>
>> Is there yet a supported way of finding out the actual screen size (or
>> equivalently pixel density) on an iOS screen?
>>
>> I have an app, uses autolayout, works fine on iPhone (one storyboard), iPad
>> (another storyboard) and mostly looks fine between iPad and iPad mini. One
>> screen however has a number of test 'cards' on it. On the phone one card ==
>> one screen looks great. On a full-sized iPad, about 6 to a page is clear, on
>> a mini however 6 is not ideal and 4, or 3, looks much better and is much
>> clearer to test. That's one of the fairly rare cases where one size doesn't
>> fit all and knowing the actual screen dimensions would make a better user
>> experience.
>>
>> I know there was lots of chat about this when the mini came out, there
>> wasn't anything then and I don't want to do one of the version or device
>> name hacks. Is there yet an API point for this?
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