Hack Allows Developers to Start Testing iPad Retina Display in iOS Simulator

Discussion in 'iOS Blog Discussion' started by MacRumors, Mar 2, 2012.

  1. macrumors bot


    Apr 12, 2001

    With a Retina iPad 3 expected just next week, one developer has created a small utility that allows the iPad simulator to run in 2X mode. The utility is available from Ryan Petrich.

    In order to run it on the latest version of Xcode, you will need to symlink /Applications/Xcode.app/Contents/Developer to /Developer and /Developer4.

    Meanwhile, stroughtonsmith shows how his app SameGame looks in the Retina iPad emulator running on his 27" iMac:


    Click on image to see full size.

    Apple is widely expected to release a Retina-enabled iPad 3 next week at their media event. If rumors are to believed, the iPad 3 should be available within a week or so of the announcement. That would leave developers little time to Retina-ize their current iPad apps if they wait until the day of the announcement.

    Article Link: Hack Allows Developers to Start Testing iPad Retina Display in iOS Simulator
  2. macrumors 6502a

    May 20, 2009
  3. macrumors 65816

    Aug 24, 2005
    Perhaps not - but it's true, we'll all be left to scramble if they announce a @2x. Could be....interesting.
  4. macrumors 603


    Oct 29, 2007
  5. macrumors 68020

    Aug 29, 2003
    Toronto, Canada
    I think that might still actually be better.
  6. macrumors 65816


    Aug 29, 2009
    Why do I find it so funny that it can't even be fully displayed on a 27" screen...
  7. macrumors 68020


    Jun 22, 2006
    The thick of it
    Not only that, but the pixel density isn't the same. So even if it fit properly, you still wouldn't get the full effect.

    I've been nudging our college to upgrade the classroom display equipment. Many classrooms have projectors with 800x600 resolution. With more teachers adopting iPads and wanting to display the contents, the current equipment will prove woefully inadequate.
  8. macrumors demi-god


    Feb 26, 2011
    New England, USA
    WOW...buttony, color thingys.

    I want to buy a lot of whatever that is.

    Maybe as an example go the amazingness of Retina display...not so good.:rolleyes: :D
  9. macrumors regular

    Dec 17, 2008
    Hey - look at the upper right of his title bar!

    I recognize the bluetooth and wireless, but what are all those other icons? What kind of really cool software does this person have?

  10. macrumors newbie

    Mar 2, 2012
    Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

    SameGame caused a reboot of my iPhone 4 nice example
  11. macrumors newbie

    Mar 14, 2011
    title bar upper right

    I am also interested in knowing what icons those are for?
  12. macrumors newbie

    Mar 2, 2012
    (from left)

    1st is Google Music
    3rd is Twitterrific
    5th is Drop Box
    10th is iChat
  13. macrumors G3


    Jun 11, 2008
    Los Angeles, CA
    But is this hack actually correct. It seems like it isn't. From the description this emulator is making the pixels double the size akin to the blowing up of an iPhone app on an iPad. But that isn't what the retina screen does. It's more like cutting the pixels in half to shove more into the same space.
  14. macrumors 6502a


    May 8, 2010
    London, England
    Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

    To view the rumoured four times the number of pixels, you need to double the width and height - which is exactly what is being done here. Density is hardware based (ie. the physical number of pixels per inch).
  15. macrumors 65816

    Battlefield Fan

    Mar 9, 2008
    Ugh, hopefully it doesn't take some app developers 2 years to update to retina for te iPad like it did with the iPhone. Lame.
  16. macrumors regular

    Apr 8, 2010
    Chicago, IL
    You're correct in what retina is, but remember that it is based on the actual screen. Therefore, if your screen doesn't support the resolution for the physical size of the screen, the only thing it can do is blow it up twice the size (which is what the iPhone 4 emulator does right now).

    It's equivalent in terms of development (like making sure you have 2x versions of your images and whatnot).
  17. macrumors 6502a


    Jul 24, 2007
    Austin, TX
    Even longer, likely... :mad:

    Honestly, I'm concerned what this means for Universal Apps. iPhone 4 and iPad were close to the same resolution, now with the iPad greatly outpacing the iPhone's resolution, what devs are going to spend tons of time making Universal apps when they will want to recoup that cost by doing what Square-Enix, Rovio, etc companies do, make a higher priced "HD" iPad app instead of the Universal one. :(
  18. macrumors 6502a

    Jun 9, 2010
    I don't think every app needs to be in retina resolution. iBook and Kindle is a must but many others, people won't care. OK, I don't care.
  19. macrumors newbie

    Mar 3, 2012
    No it doesn't. The iOS simulator runs retina apps in full retina resolution. It doesn't double pixels unless the app doesnt support retina.
  20. pmz
    macrumors 68000

    Nov 18, 2009
    This made me think that Apple might have some new fangled way of using an actual iPad 3 tethered to a Mac as a live iPad simulator, in the new SDK for developing on the iPad 3.


    Every App needs to run the native resolution of the display its built for. /End of story.
  21. macrumors 6502a

    Mar 11, 2003
    so cal
    9th is 1Password
  22. macrumors 6502

    Nov 25, 2003
    Melbourne, FL
    Using Google reverse Image search (images.google.com) I figured that the the:
    4th is to initiate the Air Video Server and
    7th is the Mac AirVideo Client.app?

    (Publicly known stuff reported on the web)
  23. macrumors regular


    Feb 3, 2010
    Think you'll have to really have a retina display to truly see the diff.
    Here's hoping for an iMac retina display refresh in somewhere in April.:D
  24. macrumors G3


    Jun 11, 2008
    Los Angeles, CA
    That's what I thought, which seems to be the opposite of this app and how it claims to be showing you the right details. But it isn't right. What they doing is basically the same as taking the same image and changing the resolution of your display. Really seeing the difference is more like taking the same image on the same display and changing it from 72dpi to 150dpi, cramming more and smaller info in the same space (making a crisper image)

    All this tool will do is show you how crappy your app will lookso you'd better make new graphics. Which if that was the intent is great, although good developers will make the safe assumption and the new graphics anyway
  25. macrumors regular

    Mar 20, 2002
    Seriously, how are developers going to run the simulator for an iPad 3?

    It won't fit on most peoples screens! unless your lucky to have an old 30" cinema display.

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