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comparison LazyBear/ContentView.swift @ 165:125d268db489

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Update UI
author Dennis Concepción Martín <66180929+denniscm190@users.noreply.github.com>
date Fri, 19 Feb 2021 20:25:06 +0100
parents f74a364441ca
children c1aa75608c27
comparison
equal deleted inserted replaced
164:f74a364441ca 165:125d268db489
4 // 4 //
5 // Created by Dennis Concepción Martín on 17/2/21. 5 // Created by Dennis Concepción Martín on 17/2/21.
6 // 6 //
7 7
8 import SwiftUI 8 import SwiftUI
9 import CoreData
10 9
11 struct ContentView: View { 10 struct ContentView: View {
12 @Environment(\.managedObjectContext) private var viewContext
13
14 @FetchRequest(
15 sortDescriptors: [NSSortDescriptor(keyPath: \Item.timestamp, ascending: true)],
16 animation: .default)
17 private var items: FetchedResults<Item>
18
19 var body: some View { 11 var body: some View {
20 List { 12 TabView {
21 ForEach(items) { item in 13 // First view
22 Text("Item at \(item.timestamp!, formatter: itemFormatter)") 14 Watchlist()
23 } 15 .tabItem {
24 .onDelete(perform: deleteItems) 16 Label("Watchlist", systemImage: "list.dash")
25 } 17 }
26 .toolbar { 18
27 #if os(iOS) 19 // First view
28 EditButton() 20 Search()
29 #endif 21 .tabItem {
30 22 Label("Search", systemImage: "magnifyingglass")
31 Button(action: addItem) { 23 }
32 Label("Add Item", systemImage: "plus") 24
33 } 25 // First view
34 } 26 Settings()
35 } 27 .tabItem {
36 28 Label("Settings", systemImage: "gear")
37 private func addItem() { 29 }
38 withAnimation {
39 let newItem = Item(context: viewContext)
40 newItem.timestamp = Date()
41
42 do {
43 try viewContext.save()
44 } catch {
45 // Replace this implementation with code to handle the error appropriately.
46 // 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.
47 let nsError = error as NSError
48 fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
49 }
50 }
51 }
52
53 private func deleteItems(offsets: IndexSet) {
54 withAnimation {
55 offsets.map { items[$0] }.forEach(viewContext.delete)
56
57 do {
58 try viewContext.save()
59 } catch {
60 // Replace this implementation with code to handle the error appropriately.
61 // 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.
62 let nsError = error as NSError
63 fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
64 }
65 } 30 }
66 } 31 }
67 } 32 }
68 33
69 private let itemFormatter: DateFormatter = {
70 let formatter = DateFormatter()
71 formatter.dateStyle = .short
72 formatter.timeStyle = .medium
73 return formatter
74 }()
75 34
76 struct ContentView_Previews: PreviewProvider { 35 struct ContentView_Previews: PreviewProvider {
77 static var previews: some View { 36 static var previews: some View {
78 ContentView().environment(\.managedObjectContext, PersistenceController.preview.container.viewContext) 37 ContentView()
79 } 38 }
80 } 39 }