開發一個iOS App 需要用到哪些圖片

紅字部分比常用到可先準備

file name	Size (pixels)	description
Icon.png	57 x 57	Universial application icon
Icon-settings.png	29 x 29	Universial application icon for settings.
Icon~ipad.png	72 x 72	iPad application icon.
Icon-spot~ipad.png	50 x 50	iPad icon for spotlight search.
iTunesArtwork.png	512 x 512	Universial application icon for iTunes App Store.Uploaded separately to iTunes. It’s included in the app bundle too, file name: iTunesArtwork. In an iPad application iPhone OS uses this image to generate the large (320×320) document icon if it is not supplied otherwise.
Default.png	320 (w) x 480 (h)	iPhone/iPod 2, 3 portrait launch image
Default@2x.png	640 (w) x 960 (h)	iPhone 4 hi-res portrait launch image
Default~ipad.png	768 (w) x 1004 (h)	iPad. Specifies the default portrait launch image.This image is used if a more specific image is not available. Use full size template (768×1024) to design this launch image. The 20 pixels height statusbar is on by default and occupies the top of the screen, aka the 1004 rows vs. 1024.
Optional icons and images:
Icon@2x.png	114 x 114	iPhone 4 retina application icon
Icon-settings@2x.png	58 x 58	iPhone 4 retina application icon for settings/search area
Icon-doc.png	22 (w) x 29 (h)	Universial document icon
Icon-doc@2x.png	44 (w) x 58 (h)	iPhone 4 retina document icon
Icon-doc~ipad.png	64 x 64	iPad document icon (small size)
Icon-doc320~ipad.png	320 x 320	iPad document icon (large size)
Background-xxx.png	320 (w) x 480 (h) 640 (w) x 960 (h) 768 (w) x 1024 (h)	background image for iPhone 2,3 G background image for iPhone 4 G background image for iPad
Default-PortraitUpsideDown~ipad.png	768 (w) x 1004 (h)	iPad. Specifies an upside-down portrait version of the launch image.
Default-LandscapeLeft~ipad.png	1024 (w) x 748 (h)	iPad. Specifies a left-oriented landscape version of the launch image.
Default-LandscapeRight~ipad.png	1024 (w) x 748 (h)	iPad. Specifies a right-oriented landscape version of the launch image.
Default-Portrait~ipad.png	768 (w) x 1004 (h)	iPad. Specifies the generic portrait version of the launch image.
Default-Landscape~ipad.png	1024 (w) x 748 (h)	iPad. Specifies the generic landscape version of the launch image.

如果用到tabbar，在tabbar item的icon大小 30x30, 60x60 灰階 png 檔。