UIKit Reference

UIKit framework documentation for iOS and iPadOS apps.

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File	Content
uikit-overview.md	Full UIKit framework index
uikit-updates.md	UIKit updates
uiapplication.md	UIApplication
uiapplicationdelegate.md	UIApplicationDelegate
uiwindowscene.md	UIWindowScene
uiview.md	UIView
uiviewcontroller.md	UIViewController
uicontrol.md	UIControl
uibutton.md	UIButton
uilabel.md	UILabel
uiimage.md	UIImage
uiimageview.md	UIImageView
uicolor.md	UIColor
uifont.md	UIFont
uiscrollview.md	UIScrollView
uitableview.md	UITableView
uicollectionview.md	UICollectionView
uistackview.md	UIStackView
nslayoutconstraint.md	NSLayoutConstraint
uinavigationcontroller.md	UINavigationController
uitabbarcontroller.md	UITabBarController
uisplitviewcontroller.md	UISplitViewController
uigesturerecognizer.md	UIGestureRecognizer
uialertcontroller.md	UIAlertController
uiactivityviewcontroller.md	UIActivityViewController
uivisualeffectview.md	UIVisualEffectView
uiblureffect.md	UIBlurEffect
uihostingcontroller.md	UIHostingController bridge from SwiftUI
using-swiftui-with-uikit.md	Using SwiftUI with UIKit

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Some UIKit-adjacent APIs live in other frameworks. For example,

UIHostingController

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