View Programming Guide for iOS

View and Window Architecture, Views

Windows

Animations

View Controller Programming Guide for iOS.

Drawing and Printing Guide for iOS.

Core Animation Programming Guide.

UIWindow Class Reference

UIView Class Reference

UIScreen Class Reference

关于view

view content——contentMode、 tag

view behavior----- drawing behavior

view appearance------tint color

view auto layout

view accessible

imageWithRenderingMode

Certain UIKit elements—including navigation bars, tab bars, toolbars, segmented controls—automatically treat their foreground images as templates, although their background images are treated as original. Other elements—such as image views and web views—treat their images as originals.