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annotate LazyBear/Helpers/MapSection.swift @ 465:6953d83060a4

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New design
author Dennis Concepción Martín <dennisconcepcionmartin@gmail.com>
date Sat, 17 Jul 2021 17:58:57 +0100
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465
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1 //
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2 // MapSection.swift
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3 // lazybear
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4 //
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5 // Created by Dennis Concepción Martín on 17/07/2021.
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6 //
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7
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8 import SwiftUI
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9 import MapKit
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10
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11 struct MapSection: View {
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12 var state: String
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13
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14 var body: some View {
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15 let states: [UsStatesModel] = parseJson("UsStatesCoordinates.json")
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16 let stateObject = states.first(where: { $0.state == state })
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17 let region = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: stateObject?.latitude ?? 40.741895, longitude: stateObject?.longitude ?? -73.989308), span: MKCoordinateSpan(latitudeDelta: 3.5, longitudeDelta: 3.5))
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18
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19 Map(coordinateRegion: .constant(region))
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20 .frame(height: 350)
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21 }
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22
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23 // MARK: - PARSE JSON
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24 private func parseJson<T: Decodable>(_ filename: String) -> T {
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25 let data: Data
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26
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27 guard let file = Bundle.main.url(forResource: filename, withExtension: nil)
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28 else {
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29 fatalError("Couldn't find \(filename) in main bundle.")
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30 }
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31
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32 do {
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33 data = try Data(contentsOf: file)
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34 } catch {
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35 fatalError("Couldn't load \(filename) from main bundle:\n\(error)")
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36 }
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37
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38 do {
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39 let decoder = JSONDecoder()
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40 return try decoder.decode(T.self, from: data)
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41 } catch {
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42 fatalError("Couldn't parse \(filename) as \(T.self):\n\(error)")
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43 }
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44 }
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45 }
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46
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47 struct MapSection_Previews: PreviewProvider {
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48 static var previews: some View {
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49 MapSection(state: "California")
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50 }
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51 }