Ios.uikit.01.uiview

1. All members of UIView

UIView	UIWindow (window)--Mounts The child view, inherits its OC class object to prompt the user
	UILabel (label)--equivalent to the label in HTML, more used to display text messages
	UITableViewCell (representing diagram cells)--contains icon, main title, subtitle, Extended view
	Uiscrollview (onscreen scrolling control)--provides horizontal or vertical scrolling	UITableView (table View)--Display information in tabular form
		Uitextview--can display and edit multiple lines
		Uicollectionview (Collection View)--Display information in grid form
	Uipickerview (normal selector)--is the parent class of Uidatepicker, which provides the user with the choice
	Uiprogressview (progress bar)--Displays the progress of the current task, eliminating the user's psychological wait time
	Uiactivityindicatorview (activity indicator)--Displays the currently responding user request
	Uiimageview (Picture control)
	Uitabbar--with label navigation, functional modularity
	Uitoolbar (Toolbar)--At the bottom of the screen, the number of buttons can not exceed 5, the ipad does not have a number of restrictions
	Uicontrol	UIButton (Button)
		Uidatepicker (date selector)
		Uipagecontrol (Split-screen control)
		Uisegmentedcontrol (segmented control)
		Uitextfield (text input control)
		UISlider (Slider control)
		Uiswitch (switch control)
	Uinavigationbar (nav bar)
	Uiactionsheet (Operation table)
	Uialertview (Warning box)
	UIWebView (Web page control)

2. UIView classification

"Control

UIButton,uidatepicker,Uipagecontrol,Uisegmentedcontrol,Uitextfield,UISlider, Uiswitch

"Window

UIWindow

"Container view

Uiscrollview,UITableView,Uitextview,uicollectionview,uitoolbar

"Show view

UILabel,Uiimageview,uiprogressview,uiactivityindicatorview

"Navigation view

Uitabbar,Uinavigationbar

"Warning box and action table

Uialertview,Uiactionsheet