Jed Lewison

AsyncOpKit brings Swift generics, error handling, and closures to NSOperations with AsyncOp, a Swift-only generic NSOperation subclass for composing asynchronous code. AsyncOp supports:

• Generic input and output
• Closures for starting and cancelling work, handling results
• Closures for evaluating preconditions
• Making an AsyncOp dependent on input from another

You can subclass AsyncOp, but because it provides built-in storage for generic input and output and allows you to customize behavior with closures, in many if not most cases you can just use AsyncOp as-is.

License: MIT

ConstraintKit makes it easy to activate, deactivate, and update layout constraints on iOS in Swift and Objective-C. It intelligently disables translatesAutoresizingMaskIntoConstraints on views participating in auto-layout, lets you update installed constraints without storing references to them, and lets you activate individual constraints in a single line of code, but it's most powerful feature is that it lets define the layout for an entire view in just one line.

License: MIT

MAFActionSheetController manages action sheet-style view controllers on iOS 7+ using MAFOverlay to present as an overlay from a bar button item or a view.

• Similar to UIAlertController, but with full control over layout and works with iOS 7+.
• Default layout is similar to popover style on iPhone
• Add custom header and footer
• Supports vertical scrolling for long sheets
• Choose primary and detail text attributes.
• Supply a custom background view for each action item to completely customize appearance.
• Uses MAFOverlay to coordinate presentations

License: MIT

MAFOverlay brings popover-style overlay presentations to iPhone and iPad on iOS 7+.

• MAFOverlay presents view controllers as overlays
• Default setup should work for most cases—simply create a coordinator object for the presented view controller
• Handles iOS 7 rotation—simply let the coordinator know about willanimaterotation events
• Works well with MAFOptionActionController for customizable ActionSheet style presentations
• Supports a subset of popover features, including presenting from Bar Button or View
• Supports Cross Dissolve and Cover Vertical transitions, but is customizable
• Uses UIKit's custom modal presentation API
• Provides grain control over animation and layout through layout attributes object and datasource

License: MIT

@synchronized for Swift, using calls to the Objective-C runtime and providing nearly identical syntax. Also provides performAndWait extension for NSLock and NSRecursiveLock.

License: MIT