fix index view

dimensionhub/Views/Index/IndexMainView.swift

@@ -5,7 +5,7 @@
 //  Created by 安礼成 on 2025/4/8.
 //
 import SwiftUI
-import Refresh
+import Combine
 
 // 首页的主要窗口
 struct IndexMainView: View {
@@ -29,7 +29,8 @@ struct IndexMainView: View {
     @State private var noMore: Bool = false
     
     // 控制显示区域的可见性
-    @State private var visibleIndices = Set<Int>()
+    @State private var footerPublisher = PassthroughSubject<Int, Never>()
+    @State var cancel: AnyCancellable?
     
     var body: some View {
         VStack(alignment: .center) {
@@ -54,7 +55,6 @@ struct IndexMainView: View {
                     }
                 )
                 .zIndex(1)
-                .border(Color.red)
             }
             .padding([.leading, .trailing], 15)
             .frame(height: 50)
@@ -67,7 +67,7 @@ struct IndexMainView: View {
                 // 基于日期的更新列表
                 LazyVStack(alignment: .center, spacing: 10) {
                     ForEach(indexModel.updateDramaGroups, id: \.group_id) { group in
-                        DramaGroupView(visibleIndices: $visibleIndices, group: group, model: indexModel) {
+                        DramaGroupView(group: group, model: indexModel) {
                             selectGroupId = group.group_id
                             indexModel.selectedDate = group.group_id
                             showDateNavPopover = true
@@ -79,19 +79,10 @@ struct IndexMainView: View {
                 Rectangle()
                     .frame(height: 0)
                     .background(GeometryReader { geometry in
-                        Color.clear.onChange(of: geometry.frame(in: .global).minY) {_, offset in
-                            let frame = geometry.frame(in: .global)
-                            let screenBounds = UIScreen.main.bounds
-                            let contextFrame = geometry.frame(in: .named("indexScrollView"))
-                            
-                            if screenBounds.height - frame.minY > 50 && contextFrame.minY > 0 && !footerRefreshing {
-                                Task {
-                                    self.footerRefreshing = true
-                                    await self.indexModel.loadMoreUpdateDramas(userId: self.userId, mode: .next)
-                                    self.footerRefreshing = false
-                                }
+                        Color.clear
+                            .onChange(of: geometry.frame(in: .global).minY) { oldValue, newValue in
+                                footerPublisher.send(Int(newValue))
                             }
-                        }
                     })
                 
                 if self.footerRefreshing {
@@ -155,12 +146,32 @@ struct IndexMainView: View {
                 indexModel.setFixedDrameGroup(groupId: minFrame.key)
             }
         }
-        .onPreferenceChange(DramaOffsetPreferenceKey.self) { offsets in
-            self.visibleIndices = Set(offsets.compactMap { (id: Int, offset: CGFloat) in
-                return offset >= 0 ? id : nil
-            })
+        .onAppear {
+            cancel = footerPublisher
+                .debounce(for: 0.1, scheduler: RunLoop.main)
+                .sink { offset in
+                    guard !footerRefreshing else {
+                        return
+                    }
+                    
+                    let height = Int(UIScreen.main.bounds.height)
+                    if offset < height + 500 && !footerRefreshing {
+                        self.footerRefreshing = true
+                        Task {
+                            await self.indexModel.loadMoreUpdateDramas(userId: self.userId, mode: .next)
+                            await MainActor.run {
+                                self.footerRefreshing = false
+                            }
+                        }
+                    }
+                }
         }
+        .onDisappear {
+            self.cancel?.cancel()
+        }
+        
     }
+    
 }
 
 extension IndexMainView {
@@ -168,7 +179,6 @@ extension IndexMainView {
     // 显示分组信息
     struct DramaGroupView: View {
         @EnvironmentObject var appNav: AppNavigation
-        @Binding var visibleIndices: Set<Int>
 
         let group: IndexModel.UpdateDramaGroup
         let model: IndexModel
@@ -236,11 +246,8 @@ extension IndexMainView {
                             
                             Color.clear
                                 .preference(key: DramaGroupElementPreferenceKey.self, value: [ group.group_id : y])
-                                .preference(key: DramaOffsetPreferenceKey.self, value: [item.id : minY])
                         })
                     }
-                    .allowsHitTesting(visibleIndices.contains(item.id))
-                    .disabled(!visibleIndices.contains(item.id))
                 }
             }
         }
@@ -255,15 +262,6 @@ extension IndexMainView {
         }
     }
     
-    // 元素的坐标的距离变化, [groupId : minY]
-    struct DramaOffsetPreferenceKey: PreferenceKey {
-        static var defaultValue: [Int: CGFloat] = [:]
-        
-        static func reduce(value: inout [Int: CGFloat], nextValue: () -> [Int: CGFloat]) {
-            value.merge(nextValue()) { $1 }
-        }
-    }
-    
 }
 
 #Preview {

dimensionhub/dimensionhubApp.swift

@@ -44,6 +44,7 @@ struct dimensionhubApp: App {
         WindowGroup {
             NavigationStack(path: $appNav.path) {
                 IndexView()
+                //TestView()
                     .navigationDestination(for: AppNavigation.Destination.self) { dest in
                         switch dest {
                         case .detail(id: let id):