Add Lottie global loading overlay and fix stuck loading states.

Replace per-VC activity indicators with a ref-counted GlobalLoadingManager, and resolve duplicate show/hide calls on Profile, Statistics, and Home tabs.

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkan/UI/Profile/ProfileViewController.swift

@@ -75,7 +75,7 @@ final class ProfileViewController: BaseViewController {
 
     override func bindActions() {
         viewModel.onStateChange = { [weak self] in
-            self?.applyViewModel()
+            Task { @MainActor in self?.applyViewModel() }
         }
 
         refreshControl.addTarget(self, action: #selector(refreshPulled), for: .valueChanged)
@@ -103,7 +103,7 @@ final class ProfileViewController: BaseViewController {
 
     override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
-        Task { await reloadProfile(showLoading: false) }
+        Task { await reloadProfile(showGlobalLoading: true) }
     }
 
     private let headerContainer = UIView()
@@ -228,12 +228,6 @@ final class ProfileViewController: BaseViewController {
             value: viewModel.currentScenicName,
             badge: .scenic
         )
-
-        if viewModel.isLoading, !refreshControl.isRefreshing {
-            showLoading()
-        } else {
-            hideLoading()
-        }
     }
 
     private func configureWithdrawalRow() {
@@ -286,13 +280,13 @@ final class ProfileViewController: BaseViewController {
 
     @objc private func refreshPulled() {
         Task {
-            await reloadProfile(showLoading: false)
+            await reloadProfile(showGlobalLoading: false)
             refreshControl.endRefreshing()
         }
     }
 
     @objc private func handleAccountDidSwitch() {
-        Task { await reloadProfile(showLoading: true) }
+        Task { await reloadProfile(showGlobalLoading: true) }
     }
 
     @objc private func nicknameChanged() {
@@ -370,13 +364,19 @@ final class ProfileViewController: BaseViewController {
         present(alert, animated: true)
     }
 
-    private func reloadProfile(showLoading: Bool) async {
-        if showLoading { self.showLoading() }
+    private func reloadProfile(showGlobalLoading: Bool) async {
+        let shouldShowOverlay = showGlobalLoading && !refreshControl.isRefreshing
+        if shouldShowOverlay {
+            showLoading()
+        }
         defer {
-            if showLoading { hideLoading() }
+            if shouldShowOverlay {
+                hideLoading()
+            }
         }
         do {
             try await viewModel.reload(api: profileAPI)
+            applyViewModel()
         } catch {
             showToast(error.localizedDescription)
         }