元素控制項 尺寸(PTS)
Window(含狀態列) 320 x 480
Status Bar的高度 20
Navigation Bar的高度 44
含Prompt的Navigation Bar的高度 74
Navigation Bar的表徵圖 20×20(透明的png)
Tool Bar的高度 44
Tool Bar的表徵圖 20×20(透明的png)
Tab Bar的高度 49
Tab Bar的表徵圖 30×30(透明的png)
豎直時鍵盤的高度 216、252(iOS 5+的中文鍵盤)
水平時鍵盤的高度 162、198(iOS 5+的中文鍵盤)
iPhone App Icon:
表徵圖名稱 尺寸 用途 是否必需
Icon.png 57×57 App Store和iPhone、iPod touch案頭顯示 是
Icon@2x.png 114×114 Icon.png的高清模式 是
Icon-Small.png 29×29 “設定”應用和Soptlight搜尋 否
Icon-Small@2x.png 58×58 Icon-Small.png的高清模式 否
iPad App Icon:
表徵圖名稱 尺寸 用途 是否必需
Icon-72.png 72×72 iPad案頭顯示 是
Icon-50.png 50×50 Spotlight搜尋 否
Icon-29.png 29×29 “設定”應用 否
iPhone、iPad通用App Icon:
表徵圖名稱 尺寸 用途 是否必需
Icon.png 57×57 App Store和iPhone、iPod touch案頭顯示 是
Icon-72.png 72×72 iPad案頭顯示 是
Icon-50.png 50×50 iPad的Soptlight搜尋 否
Icon-29.png 29×29 “設定”應用和iPhone、iPod touch的Soptlight搜尋 否
延伸閱讀:Points VS. Pixels
The iPhone 4 introduced a high resolution display with twice the pixels of previous iPhones. However you don't have to modify your code to support high-res displays; the coordinate system goes by points rather than pixels, and the dimensions in points of
the screen and all UI elements remain the same.
iOS 4 supports high resolution displays (like the iPhone 4 display) via the scale property on UIScreen, UIView, UIImage, and CALayer classes. If the object is displaying high-res content, its scale property is set to 2.0. Otherwise it defaults to 1.0.
All you need to do to support high-res displays is to provide @2x versions of the images in your project. See the checklist for updating to iOS4 or Apple documentation for Supporting High Resolution Screens for more info.