iOS 应用上传所需 Icon图片大小

iPhone-only Apps

Include the following in your application's Resources group in the Xcode project:

Table 1  iPhone-only apps icon requirements.

Image Size (px)	File Name	Used For	Required Status
512x512	iTunesArtwork	Ad Hoc iTunes	Optional but recommended
57x57	Icon.png	App Store and Home screen on iPhone/iPod touch	Required
114x114	[e-mail]	Home screen for iPhone 4 High Resolution	Optional but recommended
72x72	Icon-72.png	Home screen for iPad compatibility	Optional but recommended
29x29	Icon-Small.png	Spotlight and Settings	Optional but recommended
50x50	Icon-Small-50.png	Spotlight for iPad compatibility	Recommended if you have a Settings bundle, otherwise optional but recommended
58x58	[e-mail]	Spotlight and Settings for iPhone 4 High Resolution	Recommended if you have a Settings bundle, otherwise optional but recommended

iPad-only Apps

Include the following in your application's Resources group in the Xcode project:

Table 2  iPad-only apps icon requirements.

Image Size (px)	File Name	Used For	Required Status
512x512	iTunesArtwork	Ad Hoc iTunes	Optional but recommended
72x72	Icon-72.png	App Store and Home screen on iPad	Required
50x50	Icon-Small-50.png	Spotlight on iPad	Optional but recommended
29x29	Icon-Small.png	Settings on iPad	Recommended if you have a Settings bundle, otherwise optional but recommended

http://developer.apple.com/library/ios/#qa/qa1686/_index.html