添加未读消息的后台更新逻辑

dimensionhub/Info.plist

@@ -10,6 +10,11 @@
 	<key>UIBackgroundModes</key>
 	<array>
 		<string>remote-notification</string>
+		<string>fetch</string>
 	</array>
+    <key>BGTaskSchedulerPermittedIdentifiers</key>
+    <array>
+        <string>com.jihe.dimensionhub.refresh</string>
+    </array>
 </dict>
 </plist>

dimensionhub/Modifers/AutoDismissModifier.swift

@@ -8,28 +8,31 @@ import SwiftUI
 
 // 自定义修饰符
 extension View {
-    func autoDismiss(after seconds: Double) -> some View {
+    func autoDismiss(isHidden: Binding<Bool>, after seconds: Double) -> some View {
-        modifier(AutoDismissModifier(seconds: seconds))
+        modifier(AutoDismissModifier(isHidden: isHidden, seconds: seconds))
     }
 }
 
 struct AutoDismissModifier: ViewModifier {
+    @Binding var isHidden: Bool
     let seconds: Double
-    @State private var isVisible = true
+
-    
     func body(content: Content) -> some View {
-        if isVisible {
+        content
-            content
+            .opacity(isHidden ? 0 : 1)
-                .onAppear {
+            .frame(height: isHidden ? 0 : nil)
-                    Task {
+            .onAppear {
-                        try? await Task.sleep(for: .seconds(seconds))
+                Task {
-                        withAnimation(.easeOut) {
+                    print("call me task: \(isHidden)")
-                            isVisible = false
+                    try? await Task.sleep(for: .seconds(seconds))
-                        }
+                    withAnimation(.easeOut) {
+                        isHidden = true
                     }
                 }
-        } else {
+            }
-            EmptyView()
+            .onChange(of: isHidden) { oldValue, newValue in
-        }
+                print("curernt value is: \(isHidden)")
+            }
     }
+    
 }

dimensionhub/Views/Index/IndexMainView.swift

@@ -25,7 +25,7 @@ struct IndexMainView: View {
     @State private var showDateNavPopover: Bool = false
     
     // 前向刷新提示信息
-    @State private var noMoreNewest: Bool = false
+    @State private var hasMoreNewest: Bool = true
     @State private var hasMoreOldest: Bool = false
 
     // 刷新逻辑
@@ -72,10 +72,15 @@ struct IndexMainView: View {
             ScrollView(.vertical, showsIndicators: false) {
                 ScrollViewOffsetReader(offset: $scrollOffset)
                 
-                if noMoreNewest {
+                if !hasMoreNewest {
                     Text("没有了")
                         .foregroundColor(.black)
-                        .autoDismiss(after: 1.5)
+                        .task {
+                            try? await Task.sleep(for: .seconds(1.5))
+                            withAnimation(.easeOut) {
+                                hasMoreNewest = true
+                            }
+                        }
                 }
                 
                 MixGroupLabelView(fixedDramaGroup: indexModel.fixedDramaGroup) {
@@ -125,15 +130,13 @@ struct IndexMainView: View {
                 
                 // 上拉刷新功能
                 self.headerRefreshing = true
-                self.noMoreNewest = false
-                
                 Task { @MainActor in
-                    await self.indexModel.loadPrevUpdateDramasTask(userId: self.userId) { hasData in
+                    let loadNum = await self.indexModel.loadPrevUpdateDramasTask(userId: self.userId) { _ in
                         DispatchQueue.main.async {
                             self.headerRefreshing = false
-                            self.noMoreNewest = !hasData
                         }
                     }
+                    self.hasMoreNewest = loadNum > 3
                 }
             }
             .onChange(of: scrollID) { _, newValue in
@@ -174,7 +177,7 @@ struct IndexMainView: View {
                 return
             }
             
-            Task { @MainActor in
+            let task = Task { @MainActor in
                 let num = await indexModel.loadMoreUpdateDramasTask(userId: self.userId)
                 if num > 3 {
                     self.hasMoreOldest = true

dimensionhub/Views/Index/IndexModel.swift

@@ -262,13 +262,15 @@ final class IndexModel {
         return loadNum
     }
     
-    func loadPrevUpdateDramasTask(userId: String, callback: (Bool) -> Void) async {
+    func loadPrevUpdateDramasTask(userId: String, callback: (Bool) -> Void) async -> Int {
         guard !self.isMoreLoading else {
-            return
+            return 0
         }
         
         // 按照id来判断不一定正确，需要借助其他值
         let dramaIds = self.getDramaIds(self.updateDramaGroups)
+        
+        var loadNum: Int = 0
         // 查找最小的id
         if let firstId = dramaIds.first {
             self.isMoreLoading = true
@@ -283,6 +285,9 @@ final class IndexModel {
                     
                     self.dramaGroupElements = transformUpdateDramaGroups(groups: self.updateDramaGroups)
                     displayDramaGroups(self.updateDramaGroups, label: "after")
+                    
+                    loadNum = groups.reduce(0, { acc, group in acc + group.items.count })
+                    
                     // 处理回调
                     callback(true)
                 } else {
@@ -293,6 +298,8 @@ final class IndexModel {
             }
             self.isMoreLoading = false
         }
+        
+        return loadNum
     }
     
     // 转换成显示的元素信息

dimensionhub/dimensionhubApp.swift

@@ -8,6 +8,7 @@
 import SwiftUI
 import SwiftData
 import Observation
+import BackgroundTasks
 
 @main
 struct dimensionhubApp: App {
@@ -97,7 +98,14 @@ struct dimensionhubApp: App {
 
 class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
     
+    let taskId = "com.jihe.dimensionhub.refresh"
+    
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
+        
+        BGTaskScheduler.shared.register(forTaskWithIdentifier: taskId, using: nil) { task in
+            self.handleAppRefresh(task: task as! BGAppRefreshTask)
+        }
+        
         Task.detached {
             await self.registerForPushNotifications()
             
@@ -124,6 +132,42 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
         return true
     }
     
+    private func handleAppRefresh(task: BGAppRefreshTask) {
+        self.scheduleAppRefresh()
+        
+        task.expirationHandler = {
+            // 清理未完成的操作
+            task.setTaskCompleted(success: false)
+        }
+        
+        Task {@MainActor in
+            if let unreadNum = await self.fetchUserUnreadCount(), unreadNum > 0 {
+                do {
+                    try await UNUserNotificationCenter.current().setBadgeCount(unreadNum)
+                    task.setTaskCompleted(success: true)
+                    NSLog("Refresh setBadgeCount num: \(unreadNum)")
+                } catch let err {
+                    NSLog("Refresh setBadgeCount get error: \(err)")
+                    task.setTaskCompleted(success: false)
+                }
+            } else {
+                task.setTaskCompleted(success: false)
+            }
+        }
+    }
+    
+    private func scheduleAppRefresh() {
+        let request = BGAppRefreshTaskRequest(identifier: taskId)
+        
+        // 设置下次执行时间（建议 1-4 小时）
+        request.earliestBeginDate = Date(timeIntervalSinceNow: 900)
+        do {
+            try BGTaskScheduler.shared.submit(request)
+        } catch {
+            NSLog("无法安排后台任务: \(error.localizedDescription)")
+        }
+    }
+    
     private func registerForPushNotifications() {
         // 请求通知权限
         UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) {granted, error in