增加过渡页面

dimensionhub/Assets.xcassets/lost_network.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "lost.jpg",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

dimensionhub/Views/DateNavView.swift

@@ -48,7 +48,7 @@ final class DateNavModel {
         } else {
             let response = await API.getDateIndex(userId: userId, as: [DateModel].self)
             switch response {
-            case .error(let code, let message):
+            case .error(_, _):
                 return []
             case .result(let models):
                 await DataCache.shared.setDateModelCache(models)

dimensionhub/Views/IndexView.swift

@@ -8,6 +8,7 @@
 import SwiftUI
 import SwiftData
 import Observation
+import Network
 
 @Observable
 final class IndexModel {
@@ -194,6 +195,88 @@ final class IndexModel {
 }
 
 struct IndexView: View {
+    
+    // 网络状态检测, 第一次进入app时，如果网络没有授权，网络请求会失败
+    enum NetworkStatus {
+        case satisfied
+        case unsatisfied
+    }
+    @State private var networkStatus: NetworkStatus = .satisfied
+    
+    private static let queue = DispatchQueue(label: "NetworkMonitorQueue")
+    
+    var body: some View {
+        ZStack {
+            switch self.networkStatus {
+            case .unsatisfied:
+                IndexExceptionView {
+                    self.checkNetworkStatus()
+                }
+            case .satisfied:
+                IndexMainView()
+            }
+        }
+        .onAppear {
+            self.checkNetworkStatus()
+        }
+    }
+    
+    private func checkNetworkStatus() {
+        let monitor = NWPathMonitor()
+        monitor.pathUpdateHandler = { path in
+            DispatchQueue.main.async {
+                switch path.status {
+                case .satisfied:
+                    self.networkStatus = .satisfied
+                default:
+                    self.networkStatus = .unsatisfied
+                }
+            }
+        }
+        monitor.start(queue: Self.queue)
+    }
+    
+}
+
+extension IndexView {
+    
+    struct IndexExceptionView: View {
+        let onRetry: () -> Void
+        
+        var body: some View {
+            HStack {
+                Spacer()
+                VStack(alignment: .center, spacing: 20) {
+                    Spacer()
+                    Image("lost_network")
+                    
+                    Text("网络状态待提升，点击重试")
+                        .font(.system(size: 13))
+                        .foregroundColor(Color(hex: "#333333"))
+                    
+                    Rectangle()
+                        .frame(width: 100, height: 25)
+                        .foregroundColor(Color(hex: "#F2F2F2"))
+                        .overlay {
+                            Text("重新加载")
+                                .font(.system(size: 13))
+                                .foregroundColor(Color(hex: "#999999"))
+                                .fontWeight(.regular)
+                        }
+                        .onTapGesture {
+                            onRetry()
+                        }
+                    Spacer()
+                }
+                Spacer()
+            }
+            .background(Color(hex: "#F6F6F6"), ignoresSafeAreaEdges: .all)
+        }
+    }
+    
+    
+    // 首页的主要窗口
+    struct IndexMainView: View {
         @Environment(\.modelContext) private var modelContext
         @AppStorage("userId") private var userId: String = Utils.defaultUserId()
         
@@ -320,8 +403,6 @@ struct IndexView: View {
         }
     }
     
-extension IndexView {
-    
     // 显示剧集的列表信息
     struct DramaCellView: View {
         let dramaItem: IndexModel.DramaItem
@@ -379,7 +460,6 @@ extension IndexView {
         }
     }
     
-    
     // 显示分组信息
     struct DramaGroupView: View {
         let group: IndexModel.UpdateDramaGroup