iPhone开发中经常用到的控件尺寸大集合
原文由论坛会员乔布斯（汗，名字确实是乔帮主）分享：）
原帖地址：http://www.cocoachina.com/bbs/read.php?tid=59387?
(How to hide the status bar) 20 ptsView inside window?
(visible status bar)320 x 460Navigation Bar44 ptsNav Bar?Image?/
Toolbar Imageup to 20 x 20 pts (transparent PNG)Tab Bar49 ptsTab Bar Iconup to 30 x 30 pts (transparent PNGs)Text Field31 ptsHeight of a view inside?
a navigation bar416 ptsHeight of a view inside?
a tab bar411 ptsHeight of a view inside?
a navbar?and?a tab bar367 ptsPortrait Keyboard height216 ptsLandscape Keyboard height140 ptsPoints 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.
Adjusting Sizes
Click here to see how to adjust?View Frames and Bounds.
Additional References
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- Apple Documentation:?Points vs. Pixels Apple Documentation:?UIBarButtonItem Class Reference?says "Typically, the size of a toolbar and navigation bar image is 20 x 20 points."Apple Documentation:?UITabBarItem Class Reference?says "The size of an tab bar image is typically 30 x 30 points."