API reference: UIKit. Query for UIView, UIViewController, controls, table and collection views, navigation controllers, scenes, Auto Layout, images, colors, gestures, presentation, and SwiftUI hosting.
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UIKit framework documentation for iOS and iPadOS apps.
Search the local files first. uikit-overview.md is the full framework index and is large, so prefer rg over opening it directly.
| 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 |
.md files first.SKILL.md frontmatter, then grep their local files. This is faster and uses less context than fetching new docs from the internet.uikit-overview.md with the sosumi.ai Markdown mirror. For example, /documentation/uikit/uiview maps to https://sosumi.ai/documentation/uikit/uiview.Some UIKit-adjacent APIs live in other frameworks. For example, UIHostingController is documented under SwiftUI.
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Optimize Apple App Store metadata in store.config.json for ASO (App Store Optimization). Use when working with store.config.json, App Store keywords, titles, subtitles, descriptions, or localizing app metadata. Helps maximize app visibility and downloads.
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Index of Apple developer documentation for iOS, macOS, and related frameworks. Use when looking up what APIs exist in a framework, browsing available documentation, or deciding what docs to fetch. Covers SwiftUI, UIKit, Core Animation (QuartzCore), XCTest, HealthKit, Combine, SwiftData, and more.
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API reference: BackgroundTasks. Query for BGTaskScheduler, app refresh, background processing.
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API reference: Combine. Query for publishers, subscribers, operators, async data streams.
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API reference: Core Animation (QuartzCore). Query for CALayer, CAAnimation, CABasicAnimation, CAKeyframeAnimation, CASpringAnimation, CATransaction, CAShapeLayer, CAGradientLayer, CAEmitterLayer, CATransform3D, CADisplayLink.
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API reference: Core Haptics. Query for CHHapticEngine, haptic patterns, tactile feedback.
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