1个屏幕模块的布局大小

Element Size (in points)

Window (including status bar) 320 x 480 pts
Status Bar (How to hide the status bar) 20 pts
View inside window (visible status bar) 320 x 460
Navigation Bar 44 pts
Nav Bar Image /Toolbar Image up to 20 x 20 pts (transparent PNG)
Tab Bar 49 pts
Tab Bar Icon up to 30 x 30 pts (transparent PNGs)
Text Field 31 pts
Height of a view inside a navigation bar 416 pts
Height of a view inside a tab bar 411 pts
Height of a view inside a navbar and a tab bar 367 pts
Portrait Keyboard height 216 pts
Landscape Keyboard height 140 pts