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Generalized Sidebar
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import SwiftUI | |
enum MenuItem: String, CaseIterable, Identifiable { | |
case pinned = "Pinned" | |
case activity = "Activity" | |
case legal = "Legal" | |
var id: MenuItem { MenuItem(rawValue: self.rawValue) ?? .pinned } | |
} | |
class MenuItemViewModel: ObservableObject { | |
@Published var isMenuOpened:Bool | |
@Published var selectedMenuItem: MenuItem | |
init(isMenuOpened: Bool = false, selectedMenuItem: MenuItem = .pinned) { | |
self.isMenuOpened = isMenuOpened | |
self.selectedMenuItem = selectedMenuItem | |
} | |
} | |
struct SideBar<Content,Item>: View where Content: View, Item: Identifiable { | |
typealias Completion = () -> Void | |
private var items: [Item] | |
private let content: (Item.ID, @escaping Completion) -> Content | |
@EnvironmentObject var menuItemViewModel: MenuItemViewModel | |
let sidebarWidth = UIScreen.main.bounds.size.width / 1.2 | |
init(items: [Item], content: @escaping (Item.ID, @escaping Completion) -> Content) { | |
self.content = content | |
self.items = items | |
} | |
var body: some View { | |
HStack { | |
VStack { | |
ForEach(items) { item in | |
self.content(item.id) { | |
self.menuItemViewModel.isMenuOpened.toggle() | |
self.menuItemViewModel.selectedMenuItem = item.id as? MenuItem ?? MenuItem.pinned | |
} | |
} | |
Spacer() | |
} | |
.foregroundColor(.primary) | |
.frame(width: sidebarWidth) | |
.background(Color.white.edgesIgnoringSafeArea(.all)) | |
.overlay( | |
Rectangle() | |
.stroke(Color.primary.opacity(0.2), lineWidth: 1) | |
.shadow(radius: 2) | |
.edgesIgnoringSafeArea(.all) | |
) | |
.offset(x: menuItemViewModel.isMenuOpened ? 0 : -sidebarWidth) | |
Spacer() | |
} | |
.background(Color.primary.opacity(menuItemViewModel.isMenuOpened ? 0.2 : 0).edgesIgnoringSafeArea(.all)) | |
} | |
} | |
struct SideBarView: View { | |
@StateObject var viewModel = MenuItemViewModel() | |
let sidebarWidth = UIScreen.main.bounds.size.width / 1.2 // 1 | |
private var menuContent: some View { | |
switch viewModel.selectedMenuItem { | |
case .pinned: | |
return Text("Pinned") | |
case .activity: | |
return Text("Activity") | |
case .legal: | |
return Text("Legal") | |
} | |
} | |
var body: some View { | |
ZStack { | |
GeometryReader { _ in | |
VStack { | |
Button { | |
withAnimation { | |
viewModel.isMenuOpened.toggle() | |
} | |
} label: { | |
Image(systemName: "line.horizontal.3") | |
.resizable() | |
.frame(width: 24, height: 24) | |
} | |
.padding() | |
.foregroundColor(Color.primary) | |
} | |
} | |
menuContent | |
SideBar(items: MenuItem.allCases) { item, completion in | |
HStack { | |
Button { | |
completion() | |
} label: { | |
Text(item.rawValue) | |
} | |
Spacer() | |
} | |
.padding(.horizontal) | |
} | |
.environmentObject(viewModel) | |
} | |
} | |
} |
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