iPhone 尺寸

ElementSize (in pixels)Window (including status bar)320 x 480pxStatus Bar
(How to hide the status bar)20 pxView inside window 
(visible status bar)320 x 460Navigation Bar44 pxNav Bar Image /
Toolbar Imageup to 20 x 20 px (transparent PNG)Tab Bar49 pxTab Bar Iconup to 30 x 30 px (transparent PNGs)Text Field31 pxHeight of a view inside 
a navigation bar416 pxHeight of a view inside 
a tab bar411 pxHeight of a view inside 
a navbar and a tab bar367 pxPortrait Keyboard height216 pxLandscape Keyboard height140 px