UIBarButtonItem.SystemItem.undo
The system undo button.
Declaration
case undoSee Also
Constants
UIBarButtonItem.SystemItem.doneUIBarButtonItem.SystemItem.cancelUIBarButtonItem.SystemItem.editUIBarButtonItem.SystemItem.saveUIBarButtonItem.SystemItem.addUIBarButtonItem.SystemItem.flexibleSpaceUIBarButtonItem.SystemItem.fixedSpaceUIBarButtonItem.SystemItem.composeUIBarButtonItem.SystemItem.replyUIBarButtonItem.SystemItem.actionUIBarButtonItem.SystemItem.organizeUIBarButtonItem.SystemItem.bookmarksUIBarButtonItem.SystemItem.searchUIBarButtonItem.SystemItem.refreshUIBarButtonItem.SystemItem.stop