ReachabilityX 使用 Apple 的 Network 框架中的 NWPathMonitor 构建，为 SwiftUI 提供了一种简单的方式来观察网络变化。

dependencies: [
    .package(url: "https://github.com/dscyrescotti/ReachabilityX", from: "1.0.0")
]

ReachabilityX 包含 ReachabilityView，它公开了从其父视图或祖先视图提供的 Reachability 对象。当需要在多个视图中观察网络更改时，它非常方便。

首先，您需要在应用程序的入口点创建一个 Reachability 实例，以便通过 environmentObject(_:) 在多个视图之间共享它。

@main
struct TestApp: App {
    @ObservedObject var reachability: Reachability = .init()
    var body: some Scene {
        WindowGroup {
            ContentView()
                .environmentObject(reachability)
                .onAppear {
                    reachability.start()
                }
        }
    }
}

现在，您可以轻松地在 ReachabilityView 中实现您的演示逻辑，并且还可以使用 onChangeStatus(action:)、onChangeInterfaceType(action:) 和 onChangePath(action:) 实现您的业务逻辑。

struct ContentView: View {
    var body: some View {
        ReachabilityView { (status: Status) in
            // some presentation logic
        }
        .onChangeStatus { status in
            // some business logic associated with status changes
        }
        .onChangeInterfaceType { interfaceType in
            // some business logic associated with interface type changes
        }
        .onChangePath { path in
            // some business logic associated with path changes
        }
    }
}

ReachabilityView 提供了一些初始化器，允许您使用带有不同参数的闭包来构建您想要的视图。

// use it when you are only interested in status
ReachabilityView { (status: Status) in
    // some presentation logic associated with status changes
}

// use it when you are only interested in interface type
ReachabilityView { (interfaceType: InterfaceType) in
    // some presentation logic associated with interface changes
}

// use it when you are interested in both of status and interface type
ReachabilityView { (status: Status, interfaceType: InterfaceType) in
    // some presentation logic associated with status and interface type changes
}

// use it when you need to know the whole network path object
ReachabilityView { (path: NWPath) in
    // some presentation logic associated with network path
}

ReachabiliyX 还允许您通过在 SwiftUI 视图中声明来创建自己的 Reachability 实例，以观察网络变化。

struct ContentView: View {
    @StateObject var reachability: Reachability = .init()
    var body: some View {
        Group {
            switch reachability.status {
            case .satisfied: Text("Connected!")
            default: Text("Not Connected!")
            }
        }
        .onAppear {
            reachability.start()
        }
        .onDisappear {
            reachability.stop()
        }
        .onChangeInterfaceType(reachability) { interfaceType in
            // some business logic
        }
    }
}

要获取网络路径更新，您需要调用 start() 方法以开始观察网络变化。如果您想停止观察更改，则必须调用 stop() 方法。这将不再监视任何网络变化。

欢迎所有开发者贡献 ReachabilityX，如果您有任何改进的想法，或者发现任何类型的错误，请提交 issue。

ReachabilityX 基于 MIT 许可证可用。有关更多信息，请参见 LICENSE 文件。

ReachabilityX

要求

安装

Swift Package Manager

使用

示例 1

示例 2

启动和停止监视网络变化

作者

贡献

许可证