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feat: Display online user count in pull-to-refresh view (#56)
* feat: Display online user count in pull-to-refresh view Add real-time online user count display in the Feed page pull-to-refresh indicator, fetched from V2EX homepage. Changes: - Add OnlineStatsInfo model to parse online user count from V2EX HTML - Add /onlineStats API endpoint with desktop UA to fetch homepage data - Create FetchOnlineStats action and reducer to handle data flow - Update HeadIndicatorView to display online count (e.g., "2613 人在线") - Modify UpdatableView to pass onlineStats through to HeadIndicatorView - Fetch online stats in parallel with feed data on pull-to-refresh The online user count appears in the pull-to-refresh indicator when users refresh the feed, providing real-time community activity information. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com> * refactor: Address Copilot review comments - Remove unused extractNumber helper methods in OnlineStatsInfo - Use explicit Task syntax for parallel execution instead of async let Co-Authored-By: GitHub Copilot <noreply@github.com> --------- Co-authored-by: Claude <noreply@anthropic.com> Co-authored-by: GitHub Copilot <noreply@github.com>
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‎V2er.xcodeproj/project.pbxproj‎

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@@ -8,6 +8,7 @@
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/* Begin PBXBuildFile section */
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28B24CA92EA3460D00F82B2A /* BalanceView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 28B24CA82EA3460D00F82B2A /* BalanceView.swift */; };
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28B24CAB2EA3561400F82B2A /* OnlineStatsInfo.swift in Sources */ = {isa = PBXBuildFile; fileRef = 28B24CAA2EA3561400F82B2A /* OnlineStatsInfo.swift */; };
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28CC76CC2E963D6700C939B5 /* FilterMenuView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A490A3E111D941C4B30F0BACA6B5E984 /* FilterMenuView.swift */; };
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4E55BE8A29D45FC00044389C /* Kingfisher in Frameworks */ = {isa = PBXBuildFile; productRef = 4E55BE8929D45FC00044389C /* Kingfisher */; };
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4EC32AF029D81863003A3BD4 /* WebView in Frameworks */ = {isa = PBXBuildFile; productRef = 4EC32AEF29D81863003A3BD4 /* WebView */; };
@@ -170,6 +171,7 @@
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/* Begin PBXFileReference section */
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28B24CA82EA3460D00F82B2A /* BalanceView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BalanceView.swift; sourceTree = "<group>"; };
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28B24CAA2EA3561400F82B2A /* OnlineStatsInfo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OnlineStatsInfo.swift; sourceTree = "<group>"; };
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4EC32AF129D818FC003A3BD4 /* WebBrowserView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WebBrowserView.swift; sourceTree = "<group>"; };
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5D02BD5E26909146007B6A1B /* LoadmoreIndicatorView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoadmoreIndicatorView.swift; sourceTree = "<group>"; };
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5D04BF9626C9FB6E0005F7E3 /* FeedInfo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedInfo.swift; sourceTree = "<group>"; };
@@ -581,6 +583,7 @@
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5DA2AD3A26C17EFE007FB1EF /* Model */ = {
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isa = PBXGroup;
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children = (
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28B24CAA2EA3561400F82B2A /* OnlineStatsInfo.swift */,
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5D3CD31E26D0F5F600B3C2D3 /* BaseModel.swift */,
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5D04BF9626C9FB6E0005F7E3 /* FeedInfo.swift */,
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5D3CD32026D0F9CC00B3C2D3 /* TabInfo.swift */,
@@ -887,6 +890,7 @@
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5D3CD32126D0F9CC00B3C2D3 /* TabInfo.swift in Sources */,
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5D0A513F26E36F15006F3D9B /* FeedDetailActions.swift in Sources */,
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5DA2AD3726C17EB9007FB1EF /* AppState.swift in Sources */,
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28B24CAB2EA3561400F82B2A /* OnlineStatsInfo.swift in Sources */,
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5D71DF59247C155400B53ED4 /* MessagePage.swift in Sources */,
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5DA2AD4626C18208007FB1EF /* MeState.swift in Sources */,
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5D88D5DA26C200FB00302265 /* FeedReducer.swift in Sources */,

‎V2er/State/DataFlow/Model/OnlineStatsInfo.swift‎

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@@ -0,0 +1,70 @@
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//
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// OnlineStatsInfo.swift
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// V2er
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//
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// Created by ghui on 2025/10/18.
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// Copyright © 2025 lessmore.io. All rights reserved.
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//
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import Foundation
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import SwiftSoup
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public struct OnlineStatsInfo: BaseModel, Codable {
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var rawData: String?
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var onlineCount: Int = 0
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var maxRecord: Int = 0
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init() {}
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enum CodingKeys: String, CodingKey {
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case onlineCount, maxRecord
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}
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init?(from html: Element?) {
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guard let root = html else {
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log("OnlineStatsInfo: root element is nil")
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return nil
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}
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// Parse from footer HTML
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// Structure: <strong>... 2576 人在线</strong> &nbsp; <span class="fade">最高记录 6679</span>
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// Get all text content from the page
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let pageText = root.value(.text)
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// Extract online count using simple pattern matching
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// Pattern: "数字 人在线"
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let onlinePattern = "(\\d+)\\s*人在线"
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if let regex = try? NSRegularExpression(pattern: onlinePattern) {
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let nsText = pageText as NSString
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let matches = regex.matches(in: pageText, range: NSRange(location: 0, length: nsText.length))
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if let match = matches.first, match.numberOfRanges > 1 {
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let numberStr = nsText.substring(with: match.range(at: 1))
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onlineCount = Int(numberStr.replacingOccurrences(of: ",", with: "")) ?? 0
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log("OnlineStatsInfo: Found online count = \(onlineCount)")
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}
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}
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// Extract max record
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let maxPattern = "最高记录\\s+(\\d+)"
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if let regex = try? NSRegularExpression(pattern: maxPattern) {
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let nsText = pageText as NSString
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let matches = regex.matches(in: pageText, range: NSRange(location: 0, length: nsText.length))
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if let match = matches.first, match.numberOfRanges > 1 {
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let numberStr = nsText.substring(with: match.range(at: 1))
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maxRecord = Int(numberStr.replacingOccurrences(of: ",", with: "")) ?? 0
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log("OnlineStatsInfo: Found max record = \(maxRecord)")
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}
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}
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// If we didn't find the data, return nil
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if onlineCount == 0 {
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log("OnlineStatsInfo: Parse failed, onlineCount = 0")
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return nil
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}
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}
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func isValid() -> Bool {
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return onlineCount > 0
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}
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}

‎V2er/State/DataFlow/Reducers/FeedReducer.swift‎

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@@ -58,6 +58,13 @@ func feedStateReducer(_ state: FeedState, _ action: Action) -> (FeedState, Actio
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followingAction = FeedActions.FetchData.Start(isFromFilterChange: true)
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case let action as FeedActions.ToggleFilterMenu:
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state.showFilterMenu.toggle()
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case let action as FeedActions.FetchOnlineStats.Done:
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if case .success(let onlineStats) = action.result {
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state.onlineStats = onlineStats
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log("FeedReducer: Received online stats: \(String(describing: onlineStats))")
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} else if case .failure(let error) = action.result {
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log("FeedReducer: Failed to fetch online stats: \(error)")
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}
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default:
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break
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}
@@ -138,4 +145,21 @@ struct FeedActions {
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var target: Reducer = reducer
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}
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struct FetchOnlineStats {
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struct Start: AwaitAction {
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var target: Reducer = reducer
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func execute(in store: Store) async {
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let result: APIResult<OnlineStatsInfo> = await APIService.shared
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.htmlGet(endpoint: .onlineStats)
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dispatch(FetchOnlineStats.Done(result: result))
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}
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}
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struct Done: Action {
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var target: Reducer = reducer
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let result: APIResult<OnlineStatsInfo>
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}
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}
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}

‎V2er/State/DataFlow/State/FeedState.swift‎

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@@ -19,4 +19,5 @@ struct FeedState: FluxState {
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var selectedTab: Tab = Tab.getSelectedTab()
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var showFilterMenu: Bool = false
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var scrollToTop: Int = 0 // Trigger scroll to top when changed
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var onlineStats: OnlineStatsInfo? = nil
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}

‎V2er/State/Networking/Endpoint.swift‎

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@@ -32,6 +32,7 @@ enum Endpoint {
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case starNode(id: String), dailyMission
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case checkin, downMyTopic(id: String), pinTopic(id: String)
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case balance
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case onlineStats
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case search
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case general(url: String)
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info.path = "/sticky/topic/\(id)"
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case .balance:
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info.path = "/balance"
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case .onlineStats:
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info.path = "/"
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info.ua = .web
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case let .search:
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info.path = "https://www.sov2ex.com/api/search"
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case let .general(url):

‎V2er/View/Feed/FeedPage.swift‎

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}
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}
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}
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.updatable(autoRefresh: state.showProgressView, hasMoreData: state.hasMoreData, max(state.scrollToTop, scrollTop(tab: .feed))) {
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.updatable(autoRefresh: state.showProgressView, hasMoreData: state.hasMoreData, max(state.scrollToTop, scrollTop(tab: .feed)), onlineStats: state.onlineStats) {
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if AccountState.hasSignIn() {
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// Fetch online stats in parallel with feed data
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Task { await run(action: FeedActions.FetchOnlineStats.Start()) }
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await run(action: FeedActions.FetchData.Start())
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}
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} loadMore: {

‎V2er/View/Widget/Updatable/HeadIndicatorView.swift‎

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@@ -13,26 +13,34 @@ struct HeadIndicatorView: View {
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var scrollY: CGFloat
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@Binding var progress: CGFloat
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@Binding var isRefreshing: Bool
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var onlineStats: OnlineStatsInfo?
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var offset: CGFloat {
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return isRefreshing ? (0 - scrollY) : -height
1920
}
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init(threshold: CGFloat, progress: Binding<CGFloat>, scrollY: CGFloat,isRefreshing: Binding<Bool>) {
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init(threshold: CGFloat, progress: Binding<CGFloat>, scrollY: CGFloat, isRefreshing: Binding<Bool>, onlineStats: OnlineStatsInfo? = nil) {
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self.height = threshold
2324
self.scrollY = scrollY
2425
self._progress = progress
2526
self._isRefreshing = isRefreshing
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self.onlineStats = onlineStats
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}
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var body: some View {
29-
Group {
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VStack(spacing: 4) {
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if progress == 1 || isRefreshing {
3133
ActivityIndicator()
3234
} else {
3335
Image(systemName: "arrow.down")
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.font(.title2.weight(.regular))
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}
38+
39+
if let stats = onlineStats, stats.isValid() {
40+
Text("\(stats.onlineCount) 人在线")
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.font(.caption)
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.foregroundColor(.secondaryText)
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}
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}
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.frame(height: height)
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.offset(y: offset)

‎V2er/View/Widget/Updatable/UpdatableView.swift‎

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@@ -30,6 +30,7 @@ struct UpdatableView<Content: View>: View {
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let damper: Float = 1.2
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@State var hapticed = false
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let state: UpdatableState
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let onlineStats: OnlineStatsInfo?
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private var refreshable: Bool {
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return onRefresh != nil
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onLoadMore: LoadMoreAction,
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onScroll: ScrollAction?,
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state: UpdatableState,
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onlineStats: OnlineStatsInfo? = nil,
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@ViewBuilder content: () -> Content) {
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self.onRefresh = onRefresh
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self.onLoadMore = onLoadMore
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self.onScroll = onScroll
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self.content = content()
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self.state = state
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self.onlineStats = onlineStats
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}
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var body: some View {
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}
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.alignmentGuide(.top, computeValue: { d in (self.isRefreshing ? (-self.threshold + scrollY) : 0.0) })
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if refreshable {
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HeadIndicatorView(threshold: threshold, progress: $progress, scrollY: scrollY, isRefreshing: $isRefreshing)
74+
HeadIndicatorView(threshold: threshold, progress: $progress, scrollY: scrollY, isRefreshing: $isRefreshing, onlineStats: onlineStats)
7275
}
7376
}
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}
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197200
public func updatable(autoRefresh: Bool = false,
198201
hasMoreData: Bool = true,
199202
_ scrollToTop: Int = 0,
203+
onlineStats: OnlineStatsInfo? = nil,
200204
refresh: RefreshAction = nil,
201205
loadMore: LoadMoreAction = nil,
202206
onScroll: ScrollAction? = nil) -> some View {
203207
let state = UpdatableState(hasMoreData: hasMoreData, showLoadingView: autoRefresh, scrollToTop: scrollToTop)
204-
return self.modifier(UpdatableModifier(onRefresh: refresh, onLoadMore: loadMore, onScroll: onScroll, state: state))
208+
return self.modifier(UpdatableModifier(onRefresh: refresh, onLoadMore: loadMore, onScroll: onScroll, state: state, onlineStats: onlineStats))
205209
}
206210

207211
public func updatable(_ state: UpdatableState,
212+
onlineStats: OnlineStatsInfo? = nil,
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refresh: RefreshAction = nil,
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loadMore: LoadMoreAction = nil,
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onScroll: ScrollAction? = nil) -> some View {
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let modifier = UpdatableModifier(onRefresh: refresh, onLoadMore: loadMore, onScroll: onScroll, state: state)
216+
let modifier = UpdatableModifier(onRefresh: refresh, onLoadMore: loadMore, onScroll: onScroll, state: state, onlineStats: onlineStats)
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return self.modifier(modifier)
213218
}
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215220
public func loadMore(_ state: UpdatableState,
216221
_ loadMore: LoadMoreAction = nil,
217222
onScroll: ScrollAction? = nil) -> some View {
218-
let modifier = UpdatableModifier(onRefresh: nil, onLoadMore: loadMore, onScroll: onScroll, state: state)
223+
let modifier = UpdatableModifier(onRefresh: nil, onLoadMore: loadMore, onScroll: onScroll, state: state, onlineStats: nil)
219224
return self.modifier(modifier)
220225
}
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222227
public func loadMore(autoRefresh: Bool = false,
223228
hasMoreData: Bool = true,
224229
_ loadMore: LoadMoreAction = nil,
225230
onScroll: ScrollAction? = nil) -> some View {
226-
self.updatable(autoRefresh: autoRefresh, hasMoreData: hasMoreData, refresh: nil, loadMore: loadMore, onScroll: onScroll)
231+
self.updatable(autoRefresh: autoRefresh, hasMoreData: hasMoreData, onlineStats: nil, refresh: nil, loadMore: loadMore, onScroll: onScroll)
227232
}
228233

229234
public func onScroll(onScroll: ScrollAction?) -> some View {
230-
self.updatable(onScroll: onScroll)
235+
self.updatable(onlineStats: nil, onScroll: onScroll)
231236
}
232237
}
233238

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236241
let onLoadMore: LoadMoreAction
237242
let onScroll: ScrollAction?
238243
let state: UpdatableState
239-
244+
let onlineStats: OnlineStatsInfo?
245+
240246
func body(content: Content) -> some View {
241247
UpdatableView(onRefresh: onRefresh, onLoadMore: onLoadMore,
242-
onScroll: onScroll, state: state) {
248+
onScroll: onScroll, state: state, onlineStats: onlineStats) {
243249
content
244250
}
245251
}

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