Dev:UIButton

From The Apple Wiki

UIButton is a UI element, which is usually a button that the user can tap on to do some actions.

Button types

Signature +(UIButton*)buttonWithType:(UIButtonType)type;
Available in 2.0 –

There 6 documented button types and 9 undocumented button types

Type Class Note
0 (UIButtonTypeCustom) UIButton
1 (UIButtonTypeRoundedRect) UIRoundedRectButton
2 (UIButtonTypeDetailDisclosure) UIButton UITableNextButton.png / UITableNextButtonPressed.png
3 (UIButtonTypeInfoLight) UIButton UIButtonBarInfo.png
4 (UIButtonTypeInfoDark) UIButton UIButtonBarInfoDark.png
5 (UIButtonTypeContactAdd) UIButton UIButtonBarContactAdd.png / UIButtonBarContactAddPressed.png
100 UINavigationButton style = 0
101 UINavigationButton style = 1
102 UINavigationButton style = 2
110 UITexturedButton
111 UIGlassButton
112 UINavigationButton style = 4
113 UIRoundedRectButton fillColor = tableCellGroupedBackgroundColor
114 UIPopoverButton Normal
115 UIPopoverButton Delete

References