90 lines
3.2 KiB
Swift
90 lines
3.2 KiB
Swift
//
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// TwitterView.swift
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// Example (iOS)
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//
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// Copyright © 2022 Xmartlabs SRL. All rights reserved.
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//
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import SwiftUI
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import PagerTabStripView
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private struct PageItem: Identifiable {
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var id: Int { tag }
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var tag: Int
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var title: String
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var posts: [Post]
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var withDescription: Bool = true
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}
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struct TwitterView: View {
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@State var selection = 1
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@State var toggle = true
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@State var swipeGestureEnabled = true
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private var items = [PageItem(tag: 1, title: "First big width", posts: TweetsModel().posts),
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PageItem(tag: 2, title: "Short", posts: TweetsModel().posts),
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PageItem(tag: 3, title: "Medium width", posts: TweetsModel().posts, withDescription: false),
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PageItem(tag: 4, title: "Second big width", posts: TweetsModel().posts),
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PageItem(tag: 5, title: "Second Medium", posts: TweetsModel().posts, withDescription: false),
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PageItem(tag: 6, title: "Mini", posts: TweetsModel().posts)
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]
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@MainActor var body: some View {
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PagerTabStripView(swipeGestureEnabled: $swipeGestureEnabled, selection: $selection) {
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ForEach(toggle ? items : items.reversed().dropLast(5), id: \.title) { item in
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PostsList(items: item.posts, withDescription: item.withDescription)
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.pagerTabItem(tag: item.tag) {
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TabBarView(tag: item.tag, title: item.title, selection: $selection)
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}
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}
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}
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.pagerTabStripViewStyle(.scrollableBarButton(tabItemSpacing: 15, tabItemHeight: 50, indicatorViewHeight: 3, indicatorView: {
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Rectangle().fill(.blue).cornerRadius(5)
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}))
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.navigationBarItems(trailing: HStack {
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Button("Refresh") {
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toggle.toggle()
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}
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Button(swipeGestureEnabled ? "Swipe On": "Swipe Off") {
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swipeGestureEnabled.toggle()
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}
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}
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)
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}
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}
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private struct TabBarView<SelectionType: Hashable>: View {
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@EnvironmentObject private var pagerSettings: PagerSettings<SelectionType>
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@Environment(\.colorScheme) var colorScheme
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@Binding var selection: SelectionType
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let tag: SelectionType
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let title: String
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init(tag: SelectionType, title: String, selection: Binding<SelectionType>) {
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self._selection = selection
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self.tag = tag
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self.title = title
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}
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@MainActor var body: some View {
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VStack {
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let selectedColor: Color = colorScheme == .dark ? .white : .black
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Text(title)
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.foregroundColor(.gray.interpolateTo(color: selection == tag ? selectedColor : Color(.systemGray),
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fraction: pagerSettings.transition.progress(for: tag)))
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.font(.subheadline.bold())
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.frame(maxHeight: .infinity)
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.animation(.default, value: selection)
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.padding(EdgeInsets(top: 0, leading: 10, bottom: 0, trailing: 10))
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}
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.frame(height: 40)
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}
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}
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struct TwitterView_Previews: PreviewProvider {
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static var previews: some View {
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TwitterView()
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}
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}
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