ui: load previous transaction state when app restart

Author: reez

BDKSwiftExampleWallet/View Model/Activity/ActivityListViewModel.swift

@@ -46,6 +46,19 @@ class ActivityListViewModel {
         self.bdkClient = bdkClient
         self.transactions = transactions
         self.walletSyncState = walletSyncState
+
+        // Preload cached data synchronously so UI has content before first render
+        // transactions + listUnspent items are available from the persisted wallet db
+        if self.transactions.isEmpty {
+            if let cached = try? bdkClient.transactions() {
+                self.transactions = cached
+            }
+        }
+        if self.localOutputs.isEmpty {
+            if let cachedUtxos = try? bdkClient.listUnspent() {
+                self.localOutputs = cachedUtxos
+            }
+        }
     }
 
     func getTransactions() {

BDKSwiftExampleWallet/View/WalletView.swift

@@ -110,6 +110,11 @@ struct WalletView: View {
                 ),
                 perform: { _ in
                     Task {
+                        // Show cached state first
+                        viewModel.getBalance()
+                        viewModel.getTransactions()
+
+                        // Then sync and refresh
                         await viewModel.syncOrFullScan()
                         viewModel.getBalance()
                         viewModel.getTransactions()
@@ -119,13 +124,14 @@ struct WalletView: View {
             )
             .task {
                 viewModel.getBalance()
+                viewModel.getTransactions()
                 if isFirstAppear || newTransactionSent {
                     await viewModel.syncOrFullScan()
                     isFirstAppear = false
                     newTransactionSent = false
                     viewModel.getBalance()
+                    viewModel.getTransactions()
                 }
-                viewModel.getTransactions()
                 await viewModel.getPrices()
             }
             .onAppear {