Friday, September 20, 2013

App Icon and Image Size for iOS

Icon and Image Sizes

Every app needs an app icon and a launch image. In addition, some apps need custom icons to represent app-specific content, functions, or modes in navigation bars, toolbars, and tab bars. 

Unlike other custom artwork in your app, the icons and images listed in Table 38-1 must meet specific criteria so that iOS can display them properly. 

In addition, some icon and image files have naming requirements. (If you need to support standard-resolution iPhone or iPod touch devices, divide by 2 the high-resolution sizes listed below.) 

Table 38-1Size (in pixels) of custom icons and images
Description
Size for iPhone 5 and iPod touch (high resolution)
Size for iPhone and iPod touch (high resolution)
Size for iPad (high resolution)
Size for iPad 2 and iPad mini (standard resolution)
App icon (required for all apps)
120 x 120
120 x 120
152 x 152
76 x 76
App icon for the App Store (required for all apps)
1024 x 1024
1024 x 1024
1024 x 1024
1024 x 1024
Launch image (required for all apps)
640 x 1136
640 x 960
1536 x 2048 (portrait)
2048 x 1536 (landscape)
768 x 1024 (portrait)
1024 x 768 (landscape)
Spotlight search results icon (recommended)
80 x 80
80 x 80
80 x 80
40 x 40
Settings icon (recommended)
58 x 58
58 x 58
58 x 58
29 x 29
Toolbar and navigation bar icon (optional)
About 44 x 44
About 44 x 44
About 44 x 44
About 22 x 22
Tab bar icon (optional)
About 50 x 50 (maximum: 96 x 64)
About 50 x 50 (maximum: 96 x 64)
About 50 x 50 (maximum: 96 x 64)
About 25 x 25 (maximum: 48 x 32)
Default Newsstand cover icon for the App Store (required for Newsstand apps)
At least 512 pixels on the longest edge
At least 512 pixels on the longest edge
At least 512 pixels on the longest edge
At least 256 pixels on the longest edge
Web clip icon (recommended for web apps and websites)
120 x 120
120 x 120
152 x 152
76 x 76

For all images and icons, the PNG format is recommended. 

The standard bit depth for icons and images is 24 bits—that is, 8 bits each for red, green, and blue—plus an 8-bit alpha channel.

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