Mercurial > public > simoleon

annotate Simoleon/Helpers/CurrencySelector.swift @ 61:84ce5e5f0381

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Improved search bar in currency selector
author Dennis Concepción Martín <dennisconcepcionmartin@gmail.com>
date Tue, 27 Jul 2021 18:45:33 +0100
parents 1303c1e50843
children 2b85d6ed433e
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1 //
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2 // CurrencySelector.swift
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3 // Simoleon
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4 //
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5 // Created by Dennis Concepción Martín on 18/07/2021.
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6 //
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7
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8 import SwiftUI
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9 import Purchases
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11 struct CurrencySelector: View {
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12 @Binding var currencyPair: String
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13 @Binding var showingCurrencySelector: Bool
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15 @State private var searchCurrency = ""
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16 @State private var showingSubscriptionPaywall = false
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17 @State private var alertTitle = ""
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18 @State private var alertMessage = ""
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19 @State private var showingAlert = false
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21 let currencyPairs: [String] = parseJson("CurrencyPairs.json")
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22
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23 var body: some View {
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24 NavigationView {
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25 VStack {
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26 SearchBar(placeholder: "Search...", text: $searchCurrency)
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27 .padding()
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29 List(searchResults, id: \.self) { currencyPair in
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30 Button(action: { select(currencyPair) }) {
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31 CurrencyRow(currencyPair: currencyPair)
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32 }
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33 }
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34 .id(UUID())
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35 .listStyle(PlainListStyle())
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36 .gesture(DragGesture()
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37 .onChanged({ _ in
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38 UIApplication.shared.dismissKeyboard()
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39 })
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40 )
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41 }
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42 .sheet(isPresented: $showingSubscriptionPaywall) {
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43 SubscriptionPaywall(showingSubscriptionPaywall: $showingSubscriptionPaywall)
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44 }
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45 .navigationTitle("Currencies")
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46 .navigationBarTitleDisplayMode(.inline)
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47 .toolbar {
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48 ToolbarItem(placement: .cancellationAction) {
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49 Button(action: { showingCurrencySelector = false }) {
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50 Text("Cancel")
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51 }
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52 }
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53 }
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54 }
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55 .alert(isPresented: $showingAlert) {
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56 Alert(title: Text(alertTitle), message: Text(alertMessage), dismissButton: .default(Text("Ok")))
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57 }
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58 }
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60 /*
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61 If searched currency string is empty:
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62 * Show all currencies
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63 else:
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64 * Show filtered list of currencies containing searched currency string
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65 */
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66 var searchResults: [String] {
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67 if searchCurrency.isEmpty {
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68 return currencyPairs
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69 } else {
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70 return currencyPairs.filter { $0.contains(searchCurrency.uppercased()) }
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71 }
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72 }
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74 /*
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75 If user is subscribed:
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76 * Select currency and dismiss currency selector
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77 else:
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78 * Show subscription paywall
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79 */
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80 private func select(_ currencyPair: String) {
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81 #if targetEnvironment(simulator)
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82 // We're in simulator
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83 self.currencyPair = currencyPair
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84 showingCurrencySelector = false
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85 #else
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86 // We're in physical device
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87 Purchases.shared.purchaserInfo { (purchaserInfo, error) in
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88 if purchaserInfo?.entitlements["all"]?.isActive == true {
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89 self.currencyPair = currencyPair
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90 showingCurrencySelector = false
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91 } else {
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92 showingSubscriptionPaywall = true
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93 }
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95 if let error = error as NSError? {
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96 alertTitle = error.localizedDescription
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97 alertMessage = error.localizedFailureReason ?? ""
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98 showingAlert = true
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99 }
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100 }
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101 #endif
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102 }
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103 }
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105
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106 struct CurrencySelector_Previews: PreviewProvider {
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107 static var previews: some View {
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108 CurrencySelector(
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109 currencyPair: .constant("USD/GBP"),
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110 showingCurrencySelector: .constant(false)
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111 )
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112 }
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113 }