An easy to use LaunchDarkly framework that adds support for SwiftUI.

Current support is only for SPM, feel free to open a PR to add other package managers.

The Swift Package Manager is a dependency manager integrated into the swift compiler and Xcode.

To integrate LaunchDarklySwiftUI into an Xcode project, go to the project editor, and select Swift Packages. From here hit the + button and follow the prompts using https://github.com/ericlewis/LaunchDarklySwiftUI.git as the URL.

To include LaunchDarklySwiftUI in a Swift package, simply add it to the dependencies section of your Package.swift file. And add the product "LaunchDarklySwiftUI" as a dependency for your targets.

dependencies: [
    .package(url: "https://github.com/ericlewis/LaunchDarklySwiftUI.git", .upToNextMinor(from: "1.0.1"))
]

Below is an entire SwiftUI application utilizing LaunchDarklySwiftUI.

import SwiftUI
import LaunchDarklySwiftUI
import LaunchDarkly

struct Flags {
    static let test = "test"
}

struct ContentView: View {
    @Environment(\.launchDarklyClient) var client
    @ObservedVariation(Flags.test, defaultValue: false) var flag
    
    private func trackView() {
        try? client.track(key: "Viewed")
    }
    
    var body: some View {
        Text(flag == true ? "true" : "false")
            .onAppear(perform: trackView)
    }
}

@main
struct LaunchlyApp: App {
    init() {
        LDClient.start(config: LDConfig(mobileKey: "#YOUR_MOBILE_KEY#"))
    }
    
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

• Contains the code for injecting a given LDClient into Environment.

• Contains the code that interacts with the LDClient, backing up the Property Wrappers.

• The property wrappers to be used within the SwiftUI code
  • @ObservedFlag: monitor variations that will react depending on the LDClient configuration injected via environment.
  • @ObservedStatus: monitor the LaunchDarkly SDK connection status.

Copyright (c) 2020 Eric Lewis

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.