fix: background color may set with delay issue

Mastodon/Scene/Compose/ComposeViewController.swift

@@ -144,13 +144,12 @@ extension ComposeViewController {
                 self.title = title
             }
             .store(in: &disposeBag)
-        view.backgroundColor = ThemeService.shared.currentTheme.value.systemElevatedBackgroundColor
+        self.setupBackgroundColor(theme: ThemeService.shared.currentTheme.value)
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in
                 guard let self = self else { return }
-                self.view.backgroundColor = theme.systemElevatedBackgroundColor
+                self.setupBackgroundColor(theme: theme)
-                self.tableView.backgroundColor = theme.systemElevatedBackgroundColor
             }
             .store(in: &disposeBag)
         navigationItem.leftBarButtonItem = cancelBarButtonItem
@@ -607,6 +606,11 @@ extension ComposeViewController {
         // })
     }
 
+    private func setupBackgroundColor(theme: Theme) {
+        view.backgroundColor = theme.systemElevatedBackgroundColor
+        tableView.backgroundColor = theme.systemElevatedBackgroundColor
+    }
+
 }
 
 extension ComposeViewController {

Mastodon/Scene/HashtagTimeline/HashtagTimelineViewController.swift

@@ -58,7 +58,8 @@ extension HashtagTimelineViewController {
         title = "#\(viewModel.hashtag)"
         titleView.update(title: viewModel.hashtag, subtitle: nil, emojiDict: [:])
         navigationItem.titleView = titleView
-        
+
+        view.backgroundColor = ThemeService.shared.currentTheme.value.secondarySystemBackgroundColor
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in

Mastodon/Scene/HomeTimeline/HomeTimelineViewController.swift

@@ -80,8 +80,8 @@ extension HomeTimelineViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
 
-
         title = L10n.Scene.HomeTimeline.title
+        view.backgroundColor = ThemeService.shared.currentTheme.value.secondarySystemBackgroundColor
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in

Mastodon/Scene/Notification/NotificationViewController.swift

@@ -48,7 +48,8 @@ final class NotificationViewController: UIViewController, NeedsDependency {
 extension NotificationViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
-        
+
+        view.backgroundColor = ThemeService.shared.currentTheme.value.secondarySystemBackgroundColor
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in

Mastodon/Scene/Notification/TableViewCell/NotificationStatusTableViewCell.swift

@@ -238,13 +238,12 @@ extension NotificationStatusTableViewCell {
             statusView.bottomAnchor.constraint(equalTo: statusContainerView.layoutMarginsGuide.bottomAnchor),
         ])
 
+        setupBackgroundColor(theme: ThemeService.shared.currentTheme.value)
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in
                 guard let self = self else { return }
-                self.statusContainerView.backgroundColor = UIColor(dynamicProvider: { traitCollection in
+                self.setupBackgroundColor(theme: theme)
-                    return traitCollection.userInterfaceStyle == .light ? theme.systemBackgroundColor : theme.tertiarySystemGroupedBackgroundColor
-                })
             }
             .store(in: &disposeBag)
         // remove item don't display
@@ -286,6 +285,16 @@ extension NotificationStatusTableViewCell {
 
 }
 
+extension NotificationStatusTableViewCell {
+
+    private func setupBackgroundColor(theme: Theme) {
+        statusContainerView.backgroundColor = UIColor(dynamicProvider: { traitCollection in
+            return traitCollection.userInterfaceStyle == .light ? theme.systemBackgroundColor : theme.tertiarySystemGroupedBackgroundColor
+        })
+    }
+
+}
+
 extension NotificationStatusTableViewCell {
     @objc private func avatarImageViewTapGestureRecognizerHandler(_ sender: UITapGestureRecognizer) {
         os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)

Mastodon/Scene/Profile/Header/ProfileHeaderViewController.swift

@@ -88,6 +88,7 @@ extension ProfileHeaderViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
 
+        view.backgroundColor = ThemeService.shared.currentTheme.value.systemGroupedBackgroundColor
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in

Mastodon/Scene/Profile/ProfileViewController.swift

@@ -141,7 +141,8 @@ extension ProfileViewController {
     
     override func viewDidLoad() {
         super.viewDidLoad()
-        
+
+        view.backgroundColor = ThemeService.shared.currentTheme.value.secondarySystemBackgroundColor
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in

Mastodon/Scene/Search/SearchViewController.swift

@@ -135,14 +135,12 @@ extension SearchViewController {
         navigationItem.compactAppearance = barAppearance
         navigationItem.scrollEdgeAppearance = barAppearance
 
+        setupBackgroundColor(theme: ThemeService.shared.currentTheme.value)
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in
                 guard let self = self else { return }
-                self.view.backgroundColor = theme.systemGroupedBackgroundColor
+                self.setupBackgroundColor(theme: theme)
-                self.searchHeader.backgroundColor = theme.systemGroupedBackgroundColor
-                self.searchingTableView.backgroundColor = theme.systemBackgroundColor
-                self.statusBar.backgroundColor = theme.navigationBarBackgroundColor
             }
             .store(in: &disposeBag)
 
@@ -171,6 +169,13 @@ extension SearchViewController {
         viewModel.viewDidAppeared.send()
     }
 
+    private func setupBackgroundColor(theme: Theme) {
+        view.backgroundColor = theme.systemGroupedBackgroundColor
+        searchHeader.backgroundColor = theme.systemGroupedBackgroundColor
+        searchingTableView.backgroundColor = theme.systemBackgroundColor
+        statusBar.backgroundColor = theme.navigationBarBackgroundColor
+    }
+
     func setupSearchBar() {
         searchBar.delegate = self
         view.addSubview(searchBar)

Mastodon/Scene/Settings/SettingsViewController.swift

@@ -205,27 +205,12 @@ class SettingsViewController: UIViewController, NeedsDependency {
     }
     
     private func setupView() {
-        self.view.backgroundColor = UIColor(dynamicProvider: { traitCollection in
+        setupBackgroundColor(theme: ThemeService.shared.currentTheme.value)
-            switch traitCollection.userInterfaceLevel {
-            case .elevated where traitCollection.userInterfaceStyle == .dark:
-                return ThemeService.shared.currentTheme.value.systemElevatedBackgroundColor
-            default:
-                return ThemeService.shared.currentTheme.value.secondarySystemBackgroundColor
-            }
-        })
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in
                 guard let self = self else { return }
-                self.view.backgroundColor = UIColor(dynamicProvider: { traitCollection in
+                self.setupBackgroundColor(theme: theme)
-                    switch traitCollection.userInterfaceLevel {
-                    case .elevated where traitCollection.userInterfaceStyle == .dark:
-                        return theme.systemElevatedBackgroundColor
-                    default:
-                        return theme.secondarySystemBackgroundColor
-                    }
-                })
-
             }
             .store(in: &disposeBag)
 
@@ -241,6 +226,17 @@ class SettingsViewController: UIViewController, NeedsDependency {
         
         updateSectionHeaderStackViewLayout()
     }
+
+    private func setupBackgroundColor(theme: Theme) {
+        view.backgroundColor = UIColor(dynamicProvider: { traitCollection in
+            switch traitCollection.userInterfaceLevel {
+            case .elevated where traitCollection.userInterfaceStyle == .dark:
+                return theme.systemElevatedBackgroundColor
+            default:
+                return theme.secondarySystemBackgroundColor
+            }
+        })
+    }
     
     private func setupNavigation() {
         navigationController?.navigationBar.prefersLargeTitles = true

Mastodon/Scene/Thread/ThreadViewController.swift

@@ -51,7 +51,8 @@ extension ThreadViewController {
     
     override func viewDidLoad() {
         super.viewDidLoad()
-        
+
+        view.backgroundColor = ThemeService.shared.currentTheme.value.secondarySystemBackgroundColor
         ThemeService.shared.currentTheme
             .receive(on: RunLoop.main)
             .sink { [weak self] theme in