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comparison LazyBear/Views/Profile/Helpers/WatchlistSheet.swift @ 427:e707dbfc3115

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Fixing weird animation .onDelete
author Dennis Concepción Martín <66180929+denniscm190@users.noreply.github.com>
date Wed, 16 Jun 2021 13:46:40 +0200
parents
children 8c58ce834d95
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426:4ec307505b3a 427:e707dbfc3115
1 //
2 // WatchlistSheet.swift
3 // LazyBear
4 //
5 // Created by Dennis Concepción Martín on 16/6/21.
6 //
7
8 import SwiftUI
9
10 struct WatchlistSheet: View {
11 var listName: String
12 var companies: [CompanyModel]
13
14 @Environment(\.presentationMode) private var watchlistSheetPresentation
15 @Environment(\.managedObjectContext) private var moc
16 @FetchRequest(entity: WatchlistCompany.entity(), sortDescriptors: [NSSortDescriptor(key:"symbol", ascending:true)])
17 var watchlistCompanies: FetchedResults<WatchlistCompany>
18
19 /*
20 NSSortDescriptor and .sorted(by: {} in ForEach must coincide. If not .onDelete is not working well.
21 */
22 var body: some View {
23 NavigationView {
24 VStack {
25 List {
26 ForEach(companies.sorted(by: { $0.companyName < $1.companyName }), id: \.self) { company in
27 StockSheetRow(company: company)
28 }
29 .onDelete(perform: deleteCompany)
30 }
31 }
32 .navigationTitle(listName)
33 .navigationBarTitleDisplayMode(.inline)
34 .toolbar {
35 ToolbarItem(placement: .navigationBarLeading) {
36 Button(action: {watchlistSheetPresentation.wrappedValue.dismiss()}) {
37 Image(systemName: "multiply")
38 }
39 }
40 }
41 }
42 }
43
44 /*
45 Delete company from watchlist
46 */
47 private func deleteCompany(at offsets: IndexSet) {
48 print(watchlistCompanies)
49 for index in offsets {
50 print(index)
51 let company = watchlistCompanies[index]
52 moc.delete(company)
53 }
54 do {
55 try moc.save()
56 print("Company deleted")
57 } catch {
58 print(error.localizedDescription)
59 }
60 }
61 }
62
63 struct WatchlistSheet_Previews: PreviewProvider {
64 static var previews: some View {
65 WatchlistSheet(
66 listName: "Most active",
67 companies: [CompanyModel(symbol: "aapl", companyName: "Apple Inc", latestPrice: 120.3, changePercent: 0.03, intradayPrices: [120.3])]
68 )
69 }
70 }