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annotate Simoleon/ConversionView.swift @ 188:e4f5dcf4d596

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add keyboard resign option
author Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
date Thu, 23 Dec 2021 16:23:16 +0100
parents 13d5a8deb6c2
children
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1 //
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2 // ConversionView.swift
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3 // Simoleon
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4 //
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5 // Created by Dennis Concepción Martín on 8/12/21.
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6 //
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7
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8 import SwiftUI
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9
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10 struct ConversionView: View {
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11 var showNavigationView: Bool?
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12
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13 // CurrencySelector variables
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14 @State var baseCurrency: SupportedCurrencyResult
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15 @State var quoteCurrency: SupportedCurrencyResult
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16 @State private var showingCurrencyList = false
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17 @State private var selecting: Selection = .baseCurrency
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18
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19 // CurrencyTextfield variables
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20 @State private var amount = "1"
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21
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22 // CurrencyConversion variables
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23 @State private var showConversion = false
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24 @State private var latestRate = CurrencyLatestRateResponse(message: [CurrencyLatestRateResult]())
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25
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26 // Update currency rates
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27 @State private var timer = Timer.publish(every: 3, on: .main, in: .common).autoconnect()
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28
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29 // CurrencyTextfield variables
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30 @FocusState private var textfieldIsFocused: Bool
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31
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32 var body: some View {
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33 ScrollView(showsIndicators: false) {
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34 VStack(alignment: .leading, spacing: 20) {
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35 // MARK: - Currency selector
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36 HStack {
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37 Button(action: { showCurrencyList(selecting: .baseCurrency) }) {
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38 CurrencySelectorLabel(currency: baseCurrency)
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39 }
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40
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41 Button(action: { showCurrencyList(selecting: .quoteCurrency)}) {
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42 CurrencySelectorLabel(currency: quoteCurrency)
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43 }
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44
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45 // MARK: - Favorite button
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46 FavoriteButton(baseCurrency: $baseCurrency, quoteCurrency: $quoteCurrency)
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47
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48 }
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49 .padding(.bottom)
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50
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51 // MARK: - Conversion box
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52 Text("\(baseCurrency.code) - \(baseCurrency.name)")
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53 .font(.callout)
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54 .fontWeight(.semibold)
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55
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56 CurrencyTextfield(currencyCode: baseCurrency.code, amount: $amount)
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57 .focused($textfieldIsFocused)
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58
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59 Divider()
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60 Text("\(quoteCurrency.code) - \(quoteCurrency.name)")
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61 .font(.callout)
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62 .fontWeight(.semibold)
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63
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64 CurrencyConversion(
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65 latestRate: latestRate,
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66 currencyCode: quoteCurrency.code,
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67 amount: $amount
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68 )
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69 }
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70 .padding(.horizontal)
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71 .sheet(isPresented: $showingCurrencyList) {
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72 CurrencyList(baseCurrency: $baseCurrency, quoteCurrency: $quoteCurrency, selecting: selecting)
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73 }
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74 }
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75 .toolbar {
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76 ToolbarItem(placement: .confirmationAction) {
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77 if textfieldIsFocused {
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78 Button("Done") {
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79 textfieldIsFocused = false
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80 }
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81 }
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82 }
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83 }
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84 .onAppear {
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85 getConversion()
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86 timer = Timer.publish(every: 3, on: .main, in: .common).autoconnect()
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87 }
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88 .onReceive(timer) { _ in
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89 getConversion()
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90 }
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91 .onDisappear {
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92 timer.upstream.connect().cancel()
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93 }
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94 .navigationTitle("Convert")
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95 .if(UIDevice.current.userInterfaceIdiom == .phone && showNavigationView ?? true) { content in
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96 NavigationView { content }
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97 }
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98 }
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99
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100 // Change selection and show CurrencyList()
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101 private func showCurrencyList(selecting: Selection) {
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102 self.selecting = selecting
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103 showingCurrencyList.toggle()
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104 }
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105
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106 // Request conversion
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107 private func getConversion() {
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108 let currencyPair = "\(baseCurrency.code)\(quoteCurrency.code)"
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109 let url = "https://api.simoleon.app/fx/latest?symbols=\(currencyPair)"
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110 httpRequest(url: url, model: CurrencyLatestRateResponse.self) { response in
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111 latestRate = response
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112 if latestRate.message.isEmpty {
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113 // Handle exception
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114 } else {
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115 showConversion = true
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116 }
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117 }
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118 }
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119 }
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120
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121 enum Selection {
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122 case baseCurrency, quoteCurrency
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123 }
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124
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125 struct ConversionView_Previews: PreviewProvider {
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126 static var previews: some View {
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127 ConversionView(
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128 baseCurrency: SupportedCurrencyResult(code: "EUR", name: "Euro", isCrypto: 0),
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129 quoteCurrency: SupportedCurrencyResult(code: "USD", name: "U.S. Dollar", isCrypto: 0)
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130 )
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131 }
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132 }