List transactions newest first on both chains

apps/ios/Koins/Views/TransactionDetailView.swift

@@ -8,6 +8,11 @@ struct TransactionDetailView: View {
   var chain: Chain
   var onDone: () -> Void
 
+  @State private var resolvedDate: Date?
+  @State private var isResolvingDate = false
+
+  private var displayedDate: Date? { record.timestamp ?? resolvedDate }
+
   private var dateFormatter: DateFormatter {
     let formatter = DateFormatter()
     formatter.dateStyle = .medium
@@ -59,8 +64,12 @@ struct TransactionDetailView: View {
 
           Card {
             VStack(alignment: .leading, spacing: 12) {
-              if let timestamp = record.timestamp {
-                DetailRow(label: "Date", value: dateFormatter.string(from: timestamp))
+              if let date = displayedDate {
+                DetailRow(label: "Date", value: dateFormatter.string(from: date))
+              } else if isResolvingDate {
+                DetailRow(label: "Date", value: "Looking up the block time…")
+              } else if let height = record.height, height > 0 {
+                DetailRow(label: "Block height", value: String(height))
               }
               if let fee = record.fee, !fee.isEmpty, record.direction == .outgoing {
                 DetailRow(label: "Network fee", value: "\(fee) \(symbol)")
@@ -108,6 +117,15 @@ struct TransactionDetailView: View {
       }
     }
     .preferredColorScheme(.dark)
+    .task {
+      guard record.timestamp == nil,
+            chain == .xmr,
+            let height = record.height, height > 0,
+            resolvedDate == nil else { return }
+      isResolvingDate = true
+      resolvedDate = try? await MoneroService.shared.blockTimestamp(height: height)
+      isResolvingDate = false
+    }
   }
 }