VirtualKit

	A	B	C	D	E	F	G	H
1		Required	Layout	Style	Events	Animation	Notes	Inherits

2	UILabel	Text	AdjustFontSizeToFitWidth, NumberOfLines	TextColor TextAlignment Font FontSize LineBreakMode HighlightedTextColor IsHighlighted IsEnabled (changes style) ShadowColor ShadowOffset			Remember to consider l18n	UIView
3	UIButton	Type (immutable, cannot be changed after creation), Text (uses UILabel internally), Action		TintColor, TitleColor, BackgroundImage				UIControl, UIView
4	UISlider	MinimumValue MaximumValue Value		{Minimum,Maximum}ValueImage {Minimum,Maximum}TrackTintColor ThumbTintColor {Minimum,Maximum}TrackImage (must be stretchable) ThumbImage	ValueChanged (from UIControl) IsContinuous		Do not set both a track tint color and a value image	UIControl, UIView
5	UISwitch			OnTintColor, TintColor (i.e. OffTintColor), ThumbTintColor, {On,Off}Image	IsOn, SetOn (option to animate change)			UIControl, UIView
6	UIImageView	Image AnimationImages		IsHighlighted + HighlightedImage TintColor	IsUserInteractionEnabled	AnimationDuration AnimationRepeatCount (default = 0, i.e. forever) StartAnimating StopAnimating IsAnimating		UIView
7	UIControl		Content{Vertical,Horizontal}Alignment (internal positioning)	Accessibility (Label, Traits, Hint, Frame, Value)	AddTarget, RemoveTarget, IsEnabled, IsSelected, IsHighlighted, TouchDown{Repeat}, TouchDrag{Inside,Outside,Enter,Exit}, TouchUp{Inside,Outside}, TouchCancel, ValueChanged, Editing{DidBegin,Changed,DidEnd,DidEndOnExit}, All{Touch,Editing}Events, {System,Application}Reserved			UIView
8	UIAlertController	Title Message		PreferredStyle Alert ActionSheet PreferredAction (Alert only)	AddAction Actions (getter only) AddTextField TextFields (getter only)			UIView
9	UITextView	Text OR AttributedText (more granular control over styles)		TextColor TextAlignment Font TypingAttributes LinkTextAttributes InputView (custom keyboard) InputAccessoryView (keyboard toolbar) FontSize (?)	IsEditable, AllowsEdittingTextAttributes, DataDetectorTypes (determines what to make links for), IsSelectable, ClearsOnInsertion, SelectedRange, ScrollRangeToVisible, DidBeginEditing, TextDidChange, TextDidEndEditing			UIView
10	UIView		FlexDirection, JustifyContent, FlexWrap, AlignItems, Directionframe frame, bounds center transform clipsToBounds	backgroundColor alpha mask isHidden isOpaque tintColor tintAdjustmentMode	isUserInteractionEnabled isMultipleTouchEnabled isExclusiveTouch	frame bounds center transform alpha backgroundColor	Threading Considerations - Manipulations to your application’s user interface must occur on the main thread. Thus, you should always call the methods of the UIView class from code running in the main thread of your application. The only time this may not be strictly necessary is when creating the view object itself but all other manipulations should occur on the main thread.
11	UIPickerView	Columns, lists of options (value, text/image)					UIKit can automatically animate these properties with smooth transitions using animate(withDuration:animations:)
12							Also, see Core Animation https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/CoreAnimation_guide/Introduction/Introduction.html#//apple_ref/doc/uid/TP40004514
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