Interesting 3rd party SDKs

Cloud Database syncing

Realm Cloud

https://cloud.realm.io/login Can also be self hosted https://github.com/realm/realm-object-server https://docs.realm.io/platform/self-hosted/installation

IceCream

Sync Realm Database with CloudKit https://github.com/caiyue1993/IceCream

SyncKit

SyncKit automates the process of synchronizing Core Data or Realm models using CloudKit. https://github.com/mentrena/SyncKit

Others

VirtualGameController

https://github.com/robreuss/VirtualGameController

File Browser

https://github.com/marmelroy/FileBrowser

P2P Networking

Merhaba

Bonjour networking for discovery and connection between iOS, macOS and tvOS devices. https://github.com/abdullahselek/Merhaba

sReto

P2P Framework for realtime collaboration in Swift https://github.com/ls1intum/sReto http://www1.in.tum.de

// 1. Create the modules for the communication mechanisms to be used
let wlanModule = WlanModule(type: "ExampleType", dispatchQueue: DispatchQueue.main)
let bluetoothModule = BluetoothModule(type: "ExampleType", dispatchQueue: DispatchQueue.main)
let remoteModule = RemoteP2PModule(baseUrl: NSURL(string: "http://www.example.com")!, dispatchQueue: DispatchQueue.main)
// 2. Create a LocalPeer and pass an array of modules
let localPeer = LocalPeer(modules: [wlanModule], dispatchQueue: DispatchQueue.main)
// 3. Start the LocalPeer
localPeer.start(
  onPeerDiscovered: { peer in 
    print("Discovered peer: \(peer)") 
  },
  onPeerRemoved: { peer in 
    print("Removed peer: \(peer)") 
  },
  onIncomingConnection: { peer, connection in 
    print("Received incoming connection: \(connection) from peer: \(peer)") 
  },
  displayName: "MyLocalPeer"
)

Caching / Networking

KingFisher

A lightweight, pure-Swift library for downloading and caching images from the web. https://github.com/onevcat/Kingfisher

let url = URL(string: "url_of_your_image")
imageView.kf.setImage(with: url)

Moya

Network abstraction layer written in Swift https://moya.github.io

provider = MoyaProvider<GitHub>()
provider.request(.zen) { result in
    switch result {
    case let .success(moyaResponse):
        let data = moyaResponse.data
        let statusCode = moyaResponse.statusCode
        // do something with the response data or statusCode
    case let .failure(error):
        // this means there was a network failure - either the request
        // wasn't sent (connectivity), or no response was received (server
        // timed out).  If the server responds with a 4xx or 5xx error, that
        // will be sent as a ".success"-ful response.
    }
}

// Reactive Extensions
provider = MoyaProvider<GitHub>()
provider.reactive.request(.userProfile("ashfurrow")).start { event in
    switch event {
    case let .value(response):
        image = UIImage(data: response.data)
    case let .failed(error):
        print(error)
    default:
        break
    }
}

provider = MoyaProvider<GitHub>()
provider.rx.request(.userProfile("ashfurrow")).subscribe { event in
    switch event {
    case let .success(response):
        image = UIImage(data: response.data)
    case let .error(error):
        print(error)
    }
}

Alamofire

Elegant HTTP Networking in Swift https://github.com/Alamofire/Alamofire

Utilities

FireBase

Analytics, Push, storage... https://firebase.google.com/docs/ios/setup

FileKit

Simple and expressive file management in Swift https://github.com/nvzqz/FileKit

let home = Path("~")
let drive: Path = "/Volumes/Macintosh HD"
let file:  Path = "~/Desktop/file\(1)"

try Path(".gitignore").createFile()

// You can find all paths with the ".txt" extension five folders deep into the Desktop with:
let textFiles = Path.userDesktop.find(searchDepth: 5) { path in
    path.pathExtension == "txt"
}

// Iterating Through Paths

for download in Path.userDownloads {
    print("Downloaded file: \(download)")
}

SwiftyUserDefaults

Modern Swift API for NSUserDefaults https://github.com/radex/SwiftyUserDefaults

extension DefaultsKeys {
    static let username = DefaultsKey<String?>("username")
    static let launchCount = DefaultsKey<Int>("launchCount")
}

// Get and set user defaults easily
let username = Defaults[.username]
Defaults[.hotkeyEnabled] = true

// Modify value types in place
Defaults[.launchCount] += 1
Defaults[.volume] -= 0.1
Defaults[.strings] += "… can easily be extended!"

// Use and modify typed arrays
Defaults[.libraries].append("SwiftyUserDefaults")
Defaults[.libraries][0] += " 2.0"

// Easily work with custom serialized types
Defaults[.color] = NSColor.white
Defaults[.color]?.whiteComponent // => 1.0

// ENUMS!
enum MyEnum: String {
    case A, B, C
}

extension UserDefaults {
    subscript(key: DefaultsKey<MyEnum?>) -> MyEnum? {
        get { return unarchive(key) }
        set { archive(key, newValue) }
    }
}

GDPerformanceView-Swift

Show CPU/Memory stats https://github.com/dani-gavrilov/GDPerformanceView-Swift

DeviceKit

DeviceKit is a value-type replacement of UIDevice. https://github.com/dennisweissmann/DeviceKit

let groupOfAllowedDevices: [Device] = [.iPhone6, .iPhone6Plus, .iPhone6s, .iPhone6sPlus, .simulator(.iPhone6), .simulator(.iPhone6Plus), .simulator(.iPhone6s), .simulator(.iPhone6sPlus)]
let device = Device()
 
if device.isOneOf(groupOfAllowedDevices) {
  // Do your action
}

// Battery
if device.batteryLevel >= 50 {
  install_iOS()
} else {
  showError()
}

// Screen brightness
if device.screenBrightness > 50 {
  print("Take care of your eyes!")
}

// Multi-device matching
let groupOfAllowedDevices: [Device] = [.iPhone6, .iPhone6Plus, .iPhone6s, .iPhone6sPlus, .simulator(.iPhone6), .simulator(.iPhone6Plus), .simulator(.iPhone6s), .simulator(.iPhone6sPlus)]
let device = Device()
 
if device.isOneOf(groupOfAllowedDevices) {
  // Do your action
}

Coding Patterns

RxSwift

Reactive Programming in Swift https://github.com/ReactiveX/RxSwift

let searchResults = searchBar.rx.text.orEmpty
    .throttle(0.3, scheduler: MainScheduler.instance)
    .distinctUntilChanged()
    .flatMapLatest { query -> Observable<[Repository]> in
        if query.isEmpty {
            return .just([])
        }
        return searchGitHub(query)
            .catchErrorJustReturn([])
    }
    .observeOn(MainScheduler.instance)

PromisesKit

https://github.com/mxcl/PromiseKit/blob/master/Documentation/CommonPatterns.md ex:

firstly {
    fetch()
}.then {
    map($0)
}.then {
    set($0)
    return animate()
}.ensure {
    cleanup()
}.catch {
    handle(error: $0)
}

class MyRestAPI {
    func avatar() -> Promise<UIImage> {
        let bgq = DispatchQueue.global(qos: .userInitiated)

        return firstly {
            user()
        }.then(on: bgq) { user in
            URLSession.shared.dataTask(.promise, with: user.imageUrl)
        }.compactMap(on: bgq) {
            UIImage(data: $0)
        }
    }
}

UI

MGSwipeTableCell

An easy to use UITableViewCell subclass that allows to display swippable buttons with a variety of transitions. https://github.com/MortimerGoro/MGSwipeTableCell

Layout

XML replacement for storyboards with live editing / viewing https://github.com/schibsted/layout

Natalie

Natalie generates Swift code based on storyboard files to make work with Storyboards and segues easier. Generated file reduce usage of Strings as identifiers for Segues or Storyboards. https://github.com/krzyzanowskim/Natalie

Hero

Elegant transition library for iOS & tvOS https://github.com/lkzhao/Hero

SearchTextField

UITextField subclass with autocompletion suggestions list
https://github.com/apasccon/SearchTextField

GitHub Templates

https://github.com/devspace/awesome-github-templates https://github.com/angular-translate/angular-translate/blob/master/.github/PULL_REQUEST_TEMPLATE.md https://github.com/appium/appium/blob/master/.github/PULL_REQUEST_TEMPLATE.md https://github.com/ionic-team/ionic/blob/master/.github/PULL_REQUEST_TEMPLATE.md https://github.com/go-sql-driver/mysql/blob/master/.github/PULL_REQUEST_TEMPLATE.md https://github.com/theos/theos/blob/master/.github/PULL_REQUEST_TEMPLATE.md