IOS自定义图标和图像

Custom icons and images

Description

Size for iPhone and iPod touch (in pixels)

Size for iPad (in pixels)

Guidelines

Application icon (required)	57 x 57 114 x 114 (high resolution)	72 x 72	“Application Icons”
App Store icon (required)	512 x 512	512 x 512	“Application Icons”
Small icon for Spotlight search results and Settings (recommended)	29 x 29 58 x 58 (high resolution)	50 x 50 for Spotlight search results 29 x 29 for Settings	“Small Icons”
Document icon (recommended for custom document types)	22 x 29 44 x 58 (high resolution)	64 x 64 320 x 320	“Document Icons”
Web clip icon (recommended for web applications and websites)	57 x 57 114 x 114 (high resolution)	72 x 72	“Web Clip Icons”
Toolbar and navigation bar icon (optional)	Approximately 20 x 20 Approximately 40 x 40 (high resolution)	Approximately 20 x 20	“Icons for Navigation Bars, Toolbars, and Tab Bars”
Tab bar icon (optional)	Approximately 30 x 30 Approximately 60 x 60 (high resolution)	Approximately 30 x 30	“Icons for Navigation Bars, Toolbars, and Tab Bars”
Launch image (required)	320 x 480 640 x 960 (high resolution)	For portrait: 768 x 1004 For landscape: 1024 x 748	“Launch Images”