Mercurial > public > simoleon

annotate Simoleon/Helpers/FavoriteButton.swift @ 187:13d5a8deb6c2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
add AboutView and FavoritesView
author Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
date Thu, 23 Dec 2021 16:12:22 +0100
parents 2fc95efcb1ee
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
1 //
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
2 // FavoriteButton.swift
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
3 // Simoleon
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
4 //
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
5 // Created by Dennis Concepción Martín on 21/12/21.
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
6 //
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
7
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
8 import SwiftUI
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
9 import CoreData
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
10
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
11 struct FavoriteButton: View {
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
12 @Binding var baseCurrency: SupportedCurrencyResult
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
13 @Binding var quoteCurrency: SupportedCurrencyResult
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
14 @State private var scale: CGFloat = 1
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
15 @Environment(\.managedObjectContext) private var viewContext
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
16 @FetchRequest(sortDescriptors: []) private var favoritePairs: FetchedResults<FavoritePair>
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
17
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
18 var body: some View {
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
19 Button(action: {
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
20 animate()
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
21 if isFavorite() { remove() }
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
22 else { add() }
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
23 }) {
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
24 RoundedRectangle(cornerRadius: 15)
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
25 .foregroundColor(Color(.secondarySystemBackground))
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
26 .frame(width: 60, height: 60)
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
27 .overlay(
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
28 VStack {
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
29 if isFavorite() {
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
30 Image(systemName: "star.fill")
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
31 } else {
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
32 Image(systemName: "star")
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
33 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
34 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
35 .font(.system(size: 28))
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
36 .foregroundColor(Color(.systemYellow))
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
37 )
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
38 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
39 .scaleEffect(scale)
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
40 .animation(.linear(duration: 0.2), value: scale)
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
41 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
42
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
43 // Add currency conversion to favorites
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
44 private func add() {
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
45 let favoritePair = FavoritePair(context: viewContext)
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
46 favoritePair.baseCurrency = baseCurrency.code
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
47 favoritePair.quoteCurrency = quoteCurrency.code
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
48
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
49 do {
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
50 try viewContext.save()
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
51 } catch {
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
52 // Replace this implementation with code to handle the error appropriately.
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
53 // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
54 let nsError = error as NSError
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
55 fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
56 }
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
57 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
58
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
59 // Remove currency conversion from favorites
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
60 private func remove() {
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
61 let favoritePair = favoritePairs.first(
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
62 where: {
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
63 $0.baseCurrency == baseCurrency.code && $0.quoteCurrency == quoteCurrency.code
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
64 })
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
65
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
66 viewContext.delete(favoritePair!)
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
67
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
68 do {
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
69 try viewContext.save()
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
70 } catch {
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
71 // Replace this implementation with code to handle the error appropriately.
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
72 // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
73 let nsError = error as NSError
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
74 fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
75 }
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
76 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
77
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
78 // Check if currency conversion is in favorites
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
79 private func isFavorite() -> Bool {
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
80 let favoritePair = favoritePairs.first(
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
81 where: {
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
82 $0.baseCurrency == baseCurrency.code && $0.quoteCurrency == quoteCurrency.code
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
83 })
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
84
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
85 guard let _ = favoritePair else { return false }
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
86
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
87 return true
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
88 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
89
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
90 // Animate favorite button
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
91 private func animate() {
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
92 scale += 0.2
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
93 DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) {
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
94 scale -= 0.2
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
95 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
96 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
97 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
98
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
99 struct FavoriteButton_Previews: PreviewProvider {
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
100 static var previews: some View {
187
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
101 FavoriteButton(
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
102 baseCurrency: .constant(SupportedCurrencyResult(code: "EUR", name: "Euro", isCrypto: 0)),
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
103 quoteCurrency: .constant(SupportedCurrencyResult(code: "USD", name: "U.S. Dollar", isCrypto: 0))
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
104 )
13d5a8deb6c2 add AboutView and FavoritesView
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents: 185
diff changeset
105 .environment(\.managedObjectContext, PersistenceController.preview.container.viewContext)
185
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
106 }
2fc95efcb1ee connect backend
Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
parents:
diff changeset
107 }