[ADD] WIP: Promoted category cards and app list filter button in BrowseView

AltStore/Manager/NotificationManager.swift

@@ -62,10 +62,13 @@ class NotificationManager: ObservableObject {
             detailText = underlyingError?.localizedDescription ?? error.localizedRecoverySuggestion
         }
         
-        
+        self.showNotification(title: text, detailText: detailText)
+    }
+    
+    func showNotification(title: String, detailText: String?) {
         let notificationId = UUID()
         
-        self.notifications[notificationId] = Notification(id: notificationId, title: text, message: detailText)
+        self.notifications[notificationId] = Notification(id: notificationId, title: title, message: detailText)
         
         let dismissWorkItem = DispatchWorkItem {
             self.notifications.removeValue(forKey: notificationId)

AltStore/Views/Browse/BrowseView.swift

@@ -31,14 +31,26 @@ struct BrowseView: View {
     
     var body: some View {
         ScrollView {
-            LazyVStack(spacing: 32) {
+            VStack(alignment: .leading) {
-                ForEach(filteredApps, id: \.bundleIdentifier) { app in
+                if searchText.isEmpty {
-                    NavigationLink {
+                    VStack(alignment: .leading, spacing: 32) {
-                        AppDetailView(storeApp: app)
+                        promotedCategoriesView
-                    } label: {
+                        
-                        BrowseAppPreviewView(storeApp: app)
+                        Text("All Apps")
+                            .font(.title2)
+                            .bold()
+                    }
+                }
+                
+                LazyVStack(spacing: 32) {
+                    ForEach(filteredApps, id: \.bundleIdentifier) { app in
+                        NavigationLink {
+                            AppDetailView(storeApp: app)
+                        } label: {
+                            BrowseAppPreviewView(storeApp: app)
+                        }
+                        .buttonStyle(PlainButtonStyle())
                     }
-                    .buttonStyle(PlainButtonStyle())
                 }
             }
             .padding()
@@ -47,7 +59,7 @@ struct BrowseView: View {
         .background(Color(UIColor.systemGroupedBackground).ignoresSafeArea())
         .navigationTitle("Browse")
         .toolbar {
-            ToolbarItem(placement: .navigationBarTrailing) {
+            ToolbarItem(placement: .navigationBarLeading) {
                 SwiftUI.Button {
                     self.isShowingSourcesView = true
                 } label: {
@@ -59,6 +71,37 @@ struct BrowseView: View {
                     }
                 }
             }
+            
+            ToolbarItem(placement: .navigationBarTrailing) {
+                SwiftUI.Button {
+                    
+                } label: {
+                    Image(systemName: "line.3.horizontal.decrease.circle")
+                        .imageScale(.large)
+                }
+
+            }
+        }
+    }
+    
+    var promotedCategoriesView: some View {
+        VStack {
+            HStack {
+                Text("Promoted Categories")
+                    .font(.title2)
+                    .bold()
+                Spacer()
+                SwiftUI.Button(action: {}, label: { Text("Show all") })
+                    .font(.callout)
+            }
+            
+            LazyVGrid(columns: [GridItem(.flexible()), GridItem(.flexible())]) {
+                PromotedCategoryView()
+                    .shadow(color: .black.opacity(0.1), radius: 8, y: 5)
+                
+                PromotedCategoryView()
+                    .shadow(color: .black.opacity(0.1), radius: 8, y: 5)
+            }
         }
     }
 }
@@ -68,3 +111,31 @@ struct BrowseView_Previews: PreviewProvider {
         BrowseView()
     }
 }
+
+
+struct PromotedCategoryView: View {
+    
+    var body: some View {
+        ZStack {
+            GeometryReader { proxy in
+                RadialGradient(colors: [
+                    Color(UIColor(hexString: "477E84")!),
+                    Color(UIColor.secondarySystemBackground),
+                    Color(UIColor.secondarySystemBackground),
+                    Color(UIColor(hexString: "C38FF5")!)
+                ], center: .bottomLeading, startRadius: 0, endRadius: proxy.size.width)
+            }
+            
+            HStack {
+                Image(systemName: "dpad.right.filled")
+                Text("Games &\nEmulators")
+                    .multilineTextAlignment(.leading)
+            }
+            .foregroundColor(.accentColor)
+            .padding()
+        }
+        .aspectRatio(21/9, contentMode: .fill)
+        .frame(maxWidth: .infinity)
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+    }
+}