将任何活动指示器库与 Moya 一起使用

Posted 2023-03-15

【中文标题】将任何活动指示器库与 Moya 一起使用

【英文标题】：Use any Activity Indicator library with Moya

【发布时间】：2018-12-17 13:23:05

【问题描述】：

我在我的 ios 项目中使用Moya Networking。我做了一个具有以下方法的类：

class UserAdapter

    static func getUsers(amount:Int=2, gender:Gender = .Male, success successCallback: @escaping ([UserModelMain]) -> Void, error errorCallback: @escaping (Swift.Error) -> Void, failure failureCallback: @escaping (MoyaError) -> Void) 

        let endpointClosure =  (target: UserTarget) -> Endpoint<UserTarget> in
            let defaultEndpoint = MoyaProvider.defaultEndpointMapping(for: target)
            return defaultEndpoint.adding(newHTTPHeaderFields: ["": ""])
        

        let provider = MoyaProvider<UserTarget>(endpointClosure: endpointClosure, plugins: [NetworkLoggerPlugin(verbose: true), NetworkActivityPlugin(networkActivityClosure:  (activity, target) in
            switch activity
            
            case .began:
                print("Network Activity began")
                UIApplication.shared.isNetworkActivityIndicatorVisible = true
            case .ended:
                print("Network Activity ended")
                UIApplication.shared.isNetworkActivityIndicatorVisible = false
            
        )])

        provider.request(.getUsers(amount: amount, gender: gender))  (result) in
            switch result 
            case .success(let response):
                 //TODO

            
        
     

我从我的视图控制器调用这个：

UserAdapter.getUsers(amount: 8, gender: .Female, success:  (response) in

    , error:  (error) in
        // show error from server
    , failure:  (error) in
        // show Moya error
    )

我需要使用任何自定义加载库，例如 NVActivityIndicatorView，而不是 UIApplication.shared.isNetworkActivityIndicatorVisible。如何做到这一点？

【问题讨论】：

您希望它能够与任何自定义库一起使用，还是希望它专门与`NVActivityIndi​​catorView? Also, it would be better to reuse MoyaProvider`一起使用并在函数外部声明它。

任何加载器库

谢谢，我在函数外声明它为“静态让提供者”

我想使用任何加载器库，我不想让视图控制器处理我的加载器启动/停止，但是这个 UserAdapter 类来完成这项工作。问题是加载器视图显然在场景/视图控制器中。如何通过委托闭包或其他方式在 UserAdapter 类中处理它？

【参考方案1】：

    static func getUsers(amount:Int=2, 
gender:Gender = .Male, 
success successCallback: @escaping ([UserModelMain]) -> Void, 
error errorCallback: @escaping (Swift.Error) -> Void, 
failure failureCallback: @escaping (Moya.MoyaError) -> Void, 
progress progressCallback: ProgressBlock?, 
activity networkActivityCallback: @escaping (_ change: NetworkActivityChangeType) -> Void) 

            let userProvider = MoyaProvider<UserTarget>(endpointClosure:  (target: UserTarget) -> Endpoint<UserTarget> in
                let defaultEndpoint = MoyaProvider.defaultEndpointMapping(for: target)
                return defaultEndpoint.adding(newHTTPHeaderFields: ["": ""])
            , plugins: [NetworkLoggerPlugin(verbose: true), NetworkActivityPlugin(networkActivityClosure:  (activity, target) in
                UIApplication.shared.isNetworkActivityIndicatorVisible = (activity == .began)
                networkActivityCallback(activity)
                switch activity
                
                case .began:
                    print("Network Activity began")
                case .ended:
                    print("Network Activity ended")
                
            )])
    //Other statements

    

【参考方案2】：

试试这个...

print("Network Activity began")
Helper.showHUD()
UserAdapter.getUsers(amount: 8, gender: .Female, success:  (response) in
    print("Network Activity ended")
    Helper.hideHUD()
, error:  (error) in
    // show error from server
    print("Network Activity ended")
    Helper.hideHUD()
, failure:  (error) in
    // show Moya error
    print("Network Activity ended")
    Helper.hideHUD()
)

【讨论】：

谢谢，但我的问题是如何将它添加到 UserAdapter 类。我不想让 viewController 处理加载器。

我想使用任何加载器库，我不想让视图控制器处理我的加载器启动/停止，但是这个 UserAdapter 类来完成这项工作。问题是加载器视图显然在场景/视图控制器中。如何通过委托闭包或其他方式在 UserAdapter 类中处理它？

【参考方案3】：

从工作项目复制粘贴

我遇到过这个问题，这里是解决方案。

网络管理器

class HomeNetworkManager: HomeNetworkable

   // MARK: Properties

   private let provider: MoyaProvider<HomeAPI>

   // MARK: Initiallization

   init(provider: MoyaProvider<HomeAPI>)
   
      self.provider = provider
   

   convenience init()
   
      let networkActivityClosure: NetworkActivityPlugin.NetworkActivityClosure =  (activity, _) in
      switch activity
      
          case .began:
              Activity.startAnimating()
          case .ended:
              Activity.stopAnimating()
          
      
        
      var plugins : [PluginType] = []

      let networkActivityPlugin = NetworkActivityPlugin(networkActivityClosure: networkActivityClosure)
      plugins.append(networkActivityPlugin)
    
      let networkLogger = NetworkLoggerPlugin(verbose: true)
      plugins.append(networkLogger)
    
      let provider = MoyaProvider<HomeAPI>(plugins: plugins)
      self.init(provider: provider)
   

   // MARK: Methods - Methods defined in HomeNetworkable Protocol

然后轻松使用它并免费获得活动指示器：

let homeNetworkManager = HomeNetworkManager()

注意：Activity 是一个带有静态方法的类，显示我的自定义活动指示器。

祝你好运！