Status of COVID-19 outbreak(CocoaPods, Alamfire, Charts)

CocoaPods

Swift 및 Objective-C Cocoa 프로젝트의 종속성 관리자입니다.

93,000개 이상의 라이브러리가 있으며 300만 개 이상의 앱에서 사용됩니다.

CocoaPods를 사용하면 프로젝트를 우아하게 확장할 수 있습니다.

 

https://cocoapods.org/

CocoaPods.org

설치 방법

$ sudo gem install cocoapods

터미널을 열고 위의 명령어를 입력

 

시작하기

$ pod init

터미널에서 해당 프로젝트의 경로로 이동한 뒤

pod init을 입력하여 프로젝트 폴더 내 Podfile 생성

 

pod init이 안될 경우

https://hirodaegu.tistory.com/446

Do not Work pod init in workspace

 

Podfile 내부

Podfile을 열고 추가하려고 하는 라이브러리를 pod '라이브러리명'으로 입력 후 저장

$ pod install

터미널에서 위의 명령어를 실행하여 프로젝트에 적용

---

Alamofire

HTTP 네트워킹 라이브러리

https://github.com/Alamofire/Alamofire

GitHub - Alamofire/Alamofire: Elegant HTTP Networking in Swift

---

Charts

https://github.com/danielgindi/Charts

GitHub - danielgindi/Charts: Beautiful charts for iOS/tvOS/OSX! The Apple side of the crossplatform MPAndroidChart.

Covid-19 현황판 및 세부사항

import Foundation

struct CityCovidOverview: Codable {
    let korea: CovidOverview
    let seoul: CovidOverview
    let busan: CovidOverview
    let daegu: CovidOverview
    let incheon: CovidOverview
    let gwangju: CovidOverview
    let daejeon: CovidOverview
    let ulsan: CovidOverview
    let sejong: CovidOverview
    let gyeonggi: CovidOverview
    let chungbuk: CovidOverview
    let chungnam: CovidOverview
    let jeonbuk: CovidOverview
    let jeonnam: CovidOverview
    let gyeongbuk: CovidOverview
    let gyeongnam: CovidOverview
    let jeju: CovidOverview
}

struct CovidOverview: Codable {
    let countryName: String
    let newCase: String
    let totalCase: String
    let recovered: String
    let death: String
    let percentage: String
    let newCcase: String
    let newFcase: String
}

import UIKit

class CovidDetailViewController: UITableViewController {

    
    @IBOutlet weak var newCaseCell: UITableViewCell!
    @IBOutlet weak var totalCaseCell: UITableViewCell!
    @IBOutlet weak var curedCell: UITableViewCell!
    @IBOutlet weak var deadCell: UITableViewCell!
    @IBOutlet weak var rateCell: UITableViewCell!
    @IBOutlet weak var overseasInflowCell: UITableViewCell!
    @IBOutlet weak var localCell: UITableViewCell!
    
    var covidOverview: CovidOverview?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        configureView()
    }
    
    func configureView() {
        guard let covidOverview = covidOverview else { return }
        title = covidOverview.countryName
        newCaseCell.detailTextLabel?.text = "\(covidOverview.newCase)"
        totalCaseCell.detailTextLabel?.text = "\(covidOverview.totalCase)"
        curedCell.detailTextLabel?.text = "\(covidOverview.recovered)"
        deadCell.detailTextLabel?.text = "\(covidOverview.death)"
        rateCell.detailTextLabel?.text = "\(covidOverview.percentage)"
        overseasInflowCell.detailTextLabel?.text = "\(covidOverview.newFcase)"
        localCell.detailTextLabel?.text = "\(covidOverview.newCcase)"
    }
}

import UIKit
import Charts
import Alamofire

class ViewController: UIViewController {
  @IBOutlet weak var totalCaseLabel: UILabel!
  @IBOutlet weak var newCaseLabel: UILabel!
  @IBOutlet weak var pieChartView: PieChartView!
  @IBOutlet weak var labelStackView: UIStackView!
  @IBOutlet weak var indicatorView: UIActivityIndicatorView!

  override func viewDidLoad() {
    super.viewDidLoad()
    self.indicatorView.startAnimating()
    self.fetchCovidOverview(completionHandler: { [weak self] result in
      guard let self = self else { return }
      self.indicatorView.stopAnimating()
      self.indicatorView.isHidden = true
      self.labelStackView.isHidden = false
      self.pieChartView.isHidden = false
      switch result {
      case let .success(result):
        self.configureStackView(koreaCovidOverview: result.korea)
        let covidOverviewList = self.makeCovidOverviewList(cityCovidOverview: result)
        self.configureChartView(covidOverviewList: covidOverviewList)

      case let .failure(error):
        debugPrint("failure \(error)")
      }
    })
  }

  func makeCovidOverviewList(cityCovidOverview: CityCovidOverview) -> [CovidOverview] {
    return [
      cityCovidOverview.seoul,
      cityCovidOverview.busan,
      cityCovidOverview.daegu,
      cityCovidOverview.incheon,
      cityCovidOverview.gwangju,
      cityCovidOverview.daejeon,
      cityCovidOverview.ulsan,
      cityCovidOverview.sejong,
      cityCovidOverview.gyeonggi,
      cityCovidOverview.chungbuk,
      cityCovidOverview.chungnam,
      cityCovidOverview.jeonnam,
      cityCovidOverview.gyeongbuk,
      cityCovidOverview.gyeongnam,
      cityCovidOverview.jeju,
    ]
  }

  func configureStackView(koreaCovidOverview: CovidOverview) {
    self.totalCaseLabel.text = "\(koreaCovidOverview.totalCase)"
    self.newCaseLabel.text = "\(koreaCovidOverview.newCase)"
  }

  func configureChartView(covidOverviewList: [CovidOverview]) {
    self.pieChartView.delegate = self
    let entries = covidOverviewList.compactMap { [weak self] overview -> PieChartDataEntry? in
      guard let self = self else { return nil }
      return PieChartDataEntry(
        value: self.removeFormatString(string: overview.newCase),
        label: overview.countryName,
        data: overview
      )
    }
    let dataSet = PieChartDataSet(entries: entries, label: "Status of COVID-19 outbreak")
    dataSet.sliceSpace = 1
    dataSet.entryLabelColor = .black
    dataSet.xValuePosition = .outsideSlice
    dataSet.valueTextColor = .black
    dataSet.valueLinePart1OffsetPercentage = 0.8
    dataSet.valueLinePart1Length = 0.2
    dataSet.valueLinePart2Length = 0.3

    dataSet.colors = ChartColorTemplates.vordiplom()
      + ChartColorTemplates.joyful()
      + ChartColorTemplates.colorful()
      + ChartColorTemplates.liberty()
      + ChartColorTemplates.pastel()
      + ChartColorTemplates.material()

    self.pieChartView.data = PieChartData(dataSet: dataSet)
    self.pieChartView.spin(duration: 0.3, fromAngle: pieChartView.rotationAngle, toAngle: pieChartView.rotationAngle + 80)
  }

  func removeFormatString(string: String) -> Double {
    let formatter = NumberFormatter()
    formatter.numberStyle = .decimal
    return formatter.number(from: string)?.doubleValue ?? 0
  }

  func fetchCovidOverview(
    completionHandler: @escaping (Result<CityCovidOverview, Error>) -> Void
  ) {
    let url = "https://api.corona-19.kr/korea/country/new/"
    let param = [
      "serviceKey": ""
    ]
    AF.request(url, method: .get, parameters: param)
      .responseData(completionHandler: { response in
        switch response.result {
        case let .success(data):
          do {
            let decoder = JSONDecoder()
            let result = try decoder.decode(CityCovidOverview.self, from: data)
            completionHandler(.success(result))
          } catch {
            completionHandler(.failure(error))
          }
        case let .failure(error):
          completionHandler(.failure(error))
        }
      })
  }
}

extension ViewController: ChartViewDelegate {
  func chartValueSelected(_ chartView: ChartViewBase, entry: ChartDataEntry, highlight: Highlight) {
    guard let covidDetailViewController = self.storyboard?.instantiateViewController(identifier: "CovidDetailViewController") as? CovidDetailViewController else {
         return
       }
    guard let covidOverview = entry.data as? CovidOverview else { return }
    covidDetailViewController.covidOverview = covidOverview
    self.navigationController?.pushViewController(covidDetailViewController, animated: true)
  }
}