How to handle hi res and low res of application's Icon.png for iPhone and iPhone4

3
votes

I have already provided both Icon.png (for iPhone) and [email protected] (for iPhone4). The thing is, when I just provided Icon.png of size 144x144, the console outputs this message:

"iPhone/iPod Touch: Icon.png: icon dimensions (144 x 144) don't meet the size requirements. The icon file must be 57x57 pixels, in .png format (-19014)"

But this renders icon in both iPhone and iPhone4 well.

I want to be able to remove this issue so I reduced the size for Icon.png to 57x57 and created [email protected] with size 144x144. After this, icon for iPhone seems fine but iPhone4 uses Icon.png and the icon renders a low res image.

Any suggestions? Thanks!

4
iphoneiphone-4application-icon
isn't @2x supposed to mean double the resolution?? 57 * 2 = 114. so make the @2x image 114 x 114. that should work... i think.. - Swapnil Luktuke
I am having this same warning (on build) and error (on validation before submitting). the funny thing is that, this same project was built/binary submitted before without any problems and, above all, I have all the icons at the proper sizes included. I am removing/re-adding the icon resources, cleaning and rebuilding just in case... - Nicolas Miari
Didn't work... I'm asking a new question - EDIT: forget it, it seems this has been asked a lot. I am checking the existing questions first. - Nicolas Miari

4 Answers

6
votes

Heres the images you need to make to support all current devices

  • iTunesArtwork – Icon for iTunes AdHoc distribution (512×512)
  • [email protected] – Home screen icon for iPhone 4 (114×114)
  • icon-72.png – Home screen icon for iPad (72×72)
  • [email protected] – Settings/Spotlight icon for iPhone 4 (58×58)
  • icon.png – Home screen icon for iPhone 3 (57×57)
  • icon-Small-50.png – Spotlight icon for iPad (50×50)
  • icon-Small.png - Settings/Spotlight icon for iPhone 3 (29×29)

From my blog http://kgutteridge.co.uk/blog/2010/07/04/icon-sizes-filenames-for-ios-devices/

2
votes

you need double resolution image for iphone4 and the double of 57X57 is 114X114 and not 144X144.

0
votes

The icon size will be 114X114 and not 144X144. Apple provides the following documentation for this: http://developer.apple.com/library/ios/documentation/userexperience/conceptual/mobilehig/IconsImages/IconsImages.html

So there will be 2 icons:

icon.png with 57X57 [email protected] with 114X114