feature: save filter by stared

Shared/Environment/SettingEnvironment.swift

@@ -20,6 +20,7 @@ final class SettingEnvironment: ObservableObject {
     @Published var zoomLevel: Int
     #if os(iOS)
     @Published var boardSelectDisplayStyle: BoardSelectStyle
+    @Published var isFilterByStared: Bool
     #endif
     #if os(macOS)
     // TODO:
@@ -39,6 +40,7 @@ final class SettingEnvironment: ObservableObject {
         
         #if os(iOS)
         boardSelectDisplayStyle = UserDefaultSetting.shared.boardSelectDisplayStyle
+        isFilterByStared = UserDefaultSetting.shared.isFilterByStared
         #endif
 
         #if os(macOS)
@@ -95,6 +97,11 @@ final class SettingEnvironment: ObservableObject {
             .dropFirst()
             .assign(to: \.boardSelectDisplayStyle, on: UserDefaultSetting.shared)
             .store(in: &cancellables)
+
+        $isFilterByStared
+            .dropFirst()
+            .assign(to: \.isFilterByStared, on: UserDefaultSetting.shared)
+            .store(in: &cancellables)
         #endif
     }
     
@@ -107,6 +114,7 @@ final class SettingEnvironment: ObservableObject {
         
         #if os(iOS)
         boardSelectDisplayStyle = UserDefaultSetting.DefaultBoardSelectDisplayStyle
+        isFilterByStared = UserDefaultSetting.DefaultIsFilterByStared
         #endif
     }
 }

Shared/Model/UserDefaultSetting.swift

@@ -18,6 +18,7 @@ final class UserDefaultSetting {
     
     #if os(iOS)
     static let DefaultBoardSelectDisplayStyle: BoardSelectStyle = .grid
+    static let DefaultIsFilterByStared: Bool = false
     #endif
 
     @UserDefault(key: "boardSize", defaultValue: DefaultBoardSize)
@@ -32,5 +33,8 @@ final class UserDefaultSetting {
     #if os(iOS)
     @UserDefault(key: "boardSelectDisplayStyle", defaultValue: DefaultBoardSelectDisplayStyle)
     var boardSelectDisplayStyle: BoardSelectStyle
+
+    @UserDefault(key: "isFilterByStared", defaultValue: DefaultIsFilterByStared)
+    var isFilterByStared: Bool
     #endif
 }

Shared/Util/UserDefaultConvertible.swift

@@ -13,6 +13,17 @@ protocol UserDefaultConvertible {
     func object() -> Any
 }
 
+extension Bool: UserDefaultConvertible {
+    init?(with object: Any) {
+        guard let value = object as? Bool else { return nil }
+        self = value
+    }
+    
+    func object() -> Any {
+        self
+    }
+}
+
 extension Int: UserDefaultConvertible {
     init?(with object: Any) {
         guard let value = object as? Int else { return nil }

iOS/Screen/BoardSelect/BoardSelectView.swift

@@ -13,13 +13,12 @@ struct BoardSelectView<Repository: FirestoreBoardRepositoryProtorol> : View {
     
     @ObservedObject var repository: Repository // TODO: @EnvironmentObject で受け取れるようにできる❓
     @Binding var isPresented: Bool
-    @State private var isStarOnly = false
 
     // MARK: Computed properties
     
     private var fileredItems: [BoardDocument] {
         repository.items
-            .filter { isStarOnly ? $0.stared : true }
+            .filter { setting.isFilterByStared ? $0.stared : true }
     }
     
     // MARK: View
@@ -72,7 +71,7 @@ struct BoardSelectView<Repository: FirestoreBoardRepositoryProtorol> : View {
             
             Divider()
             
-            Toggle(isOn: $isStarOnly) {
+            Toggle(isOn: $setting.isFilterByStared) {
                 Label("Star only", systemImage: "star.fill")
             }
         }, label: {