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Re: iconutil corrupting alpha channel
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Re: iconutil corrupting alpha channel


  • Subject: Re: iconutil corrupting alpha channel
  • From: Fritz Anderson <email@hidden>
  • Date: Tue, 25 Feb 2014 21:18:25 -0600

[In a hurry, this isn’t well-organized, sorry.]

On 25 Feb 2014, at 3:19 AM, email@hidden wrote:

> When xcode archives an iOS app for the store, does it use iconutil?

Before I lecture you about how none of the files or processes you mention are used in iOS, I should ask: Do you really mean iOS? Or perhaps OS X?

Also: At what point do you believe the image was corrupted? Surely not on your end, because you’d see the icon yourself.

What does the build transcript (Log navigator, last tab, select the latest build, expand entries to examine the transcript for those steps) tell you about icon handling? I’m sorry I can’t do the experiment right now, but Xcode could conceivably call out to iconutil (much more likely) or do the aggregation natively. If you have an .iconset package (or a media asset collection that is tagged as the application icon), Xcode should convert to .icns without further instruction.

When you say “store app icon,” do you mean the large-format (1024x1024) icon
displayed on App Store catalog pages? Those don’t have any other role, and shouldn’t go into the application package anyway (unless you want to add one to an OS X .icns).

How did you add your .pngs to the Xcode project? In a media-asset library, as a reference to an .iconset folder, or just dumped-in? If you have two or more of these, cut them down to just the .iconset folder (which must itself, not any of its contents, be part of the project).

(Yes, I’d use an asset library, but using an .iconset folder, for this problem, cuts down on the variables.)

	— F

--
Xcode 5 Start to Finish - out this spring


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References: 
 >iconutil corrupting alpha channel (From: email@hidden)

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