Moya是對Alamofire的再次封裝。

我們用一張圖來對比一下Alamofire和moya的區(qū)別：

image

有關(guān)Alamofire

為了對Moya有更好的了解。讓我們先復(fù)習(xí)一下Alamofire的用法芜赌。

Alamofire 使用一個簡單的Get請求
請求城市的實(shí)時天氣為例子

let weatherUrl:String = "http://weatherapi.market.xiaomi.com/wtr-v2/temp/realtime?cityId="

func getWeatherInfo() -> Void {
         let parameters = ["cityId":"101040100"];
        Alamofire.request(weatherUrl,method:.get,parameters:parameters,encoding: URLEncoding.default).responseJSON { (response) in
            switch response.result {
            case .success(let json ):
                let jsonDic = json as? NSDictionary
                print(jsonDic! as NSDictionary);
                self.showAlert(weatherDic: jsonDic!)
                
                break
            case .failure(let error):
                print("error:\(error)")
                break
            }
        }
    }

Moya的簡單實(shí)用

封裝一個Api Provider

//
//  NetworkManager.swift
//  SwiftPlayground
//
//  Created by Destiny on 2020/8/18.
//  Copyright ? 2020 Destiny. All rights reserved.
//

import UIKit
import Moya
import HandyJSON

// NetworkAPI就是一個遵循TargetType協(xié)議的枚舉
let NetworkProvider = MoyaProvider<NetworkAPI>()

enum NetworkAPI {
    // 實(shí)時天氣
    case realtimeWeather(cityId:String)
}

extension NetworkAPI:TargetType{
    public var baseURL: URL{
        switch self {
        case .realtimeWeather:
            return URL(string: "http://weatherapi.market.xiaomi.com/wtr-v2/temp/realtime?cityId=")!
        }
    }
    
    // 對應(yīng)的不同API path
    var path: String {
        switch self {
        case .realtimeWeather: return ""
        }
    }
    
    // 請求類型
    public var method: Moya.Method {
        return .get
    }
    
    // 請求任務(wù)事件（這里附帶上參數(shù)）
    public var task: Task {
        var parmeters: [String : Any] = [:]
        switch self {

        case .realtimeWeather(let cityId):
            parmeters = ["cityId":cityId] as [String : Any]
            return .requestParameters(parameters: parmeters, encoding: URLEncoding.default)
        }
    }
    
    // 是否執(zhí)行Alamofire驗(yàn)證
    public var validate: Bool {
        return false
    }
    
    // 這個就是做單元測試模擬的數(shù)據(jù)轿秧，只會在單元測試文件中有作用
    public var sampleData: Data {
        return "{}".data(using: String.Encoding.utf8)!
    }
    
    // 請求頭
    public var headers: [String: String]? {
        return nil
    }
}

網(wǎng)絡(luò)請求方法

/// 基本使用
    func weatherAPI() {
        NetworkProvider.request(NetworkAPI.realtimeWeather(cityId: "101040100")) { result in
            if case .success(let response) = result {
               // 解析數(shù)據(jù)
                let jsonDic = try! response.mapJSON() as! NSDictionary
                self.showAlert(weatherDic: jsonDic)
            }
        }
        

    }

func showAlert(weatherDic:NSDictionary) -> Void {
           let dataDic = weatherDic["weatherinfo"] as! NSDictionary
           let temp = dataDic["temp"] as!String
           let sd = dataDic["SD"] as!String
           
           
           let alertController = UIAlertController(title:"提示",message:"重慶當(dāng)前溫度：\(temp)℃,濕度：\(sd)",preferredStyle: .alert);
           let canceAction = UIAlertAction(title:"取消",style:.cancel,handler:nil);
           let okAciton = UIAlertAction(title:"確定",style:.default,handler: {
               action in
               print("他點(diǎn)擊了確定")
           })
           alertController.addAction(canceAction);
           alertController.addAction(okAciton);
           self.present(alertController, animated: true, completion: nil)
       }