ui fixes

Example/WalletApp/PresentationLayer/Wallet/SendStableCoin/SendStableCoinPresenter.swift

@@ -218,24 +218,36 @@ final class SendStableCoinPresenter: ObservableObject, SceneViewModel {
             accountAddress: recipient
         )
 
-        // 1) Convert the "amount" string to a Decimal
-        guard let decimalAmount = Decimal(string: amount) else {
+        // 1) Normalize the decimal separator and try to convert to Decimal
+        let normalizedAmount = amount.replacingOccurrences(of: ",", with: ".")
+        guard let decimalAmount = Decimal(string: normalizedAmount) else {
             throw NSError(domain: "SendStableCoinPresenter", code: 0, userInfo: [
                 NSLocalizedDescriptionKey: "Invalid numeric input: \(amount)"
             ])
         }
 
         // USDC/USDT => 6 decimals
         let baseUnitsDecimal = decimalAmount * Decimal(1_000_000)
-        let baseUnitsString = NSDecimalNumber(decimal: baseUnitsDecimal).stringValue
+
+        // Use a number formatter to ensure consistent string conversion
+        let formatter = NumberFormatter()
+        formatter.numberStyle = .decimal
+        formatter.maximumFractionDigits = 0 // No decimal places for base units
+        formatter.groupingSeparator = "" // No thousand separators
+        formatter.decimalSeparator = "." // Force decimal point
+
+        guard let baseUnitsString = formatter.string(from: NSDecimalNumber(decimal: baseUnitsDecimal)) else {
+            throw NSError(domain: "SendStableCoinPresenter", code: 0, userInfo: [
+                NSLocalizedDescriptionKey: "Failed to convert amount to string"
+            ])
+        }
 
         // 2) Determine which contract address to use
         let tokenAddress: String
         switch stableCoinChoice {
         case .usdc:
             tokenAddress = selectedNetwork.usdcContractAddress
         case .usdt:
-            // already checked if .Base => throw error => must not get here if base
             tokenAddress = selectedNetwork.usdtContractAddress
         }
 
@@ -247,7 +259,6 @@ final class SendStableCoinPresenter: ObservableObject, SceneViewModel {
         )
         return call
     }
-
     /// Persists the latest recipient in UserDefaults
     private func saveRecipientToUserDefaults() {
         userDefaults.set(recipient, forKey: recipientKey)

Example/WalletApp/PresentationLayer/Wallet/SendStableCoin/SendStableCoinView.swift

@@ -36,8 +36,13 @@ extension View {
 
 struct SendStableCoinView: View {
     @ObservedObject var presenter: SendStableCoinPresenter
+
+    /// Controls whether the network selection dialog is shown
     @State private var showNetworkPicker = false
 
+    /// Tracks whether the amount TextField is currently focused
+    @FocusState private var amountFieldIsFocused: Bool
+
     var body: some View {
         VStack(spacing: 24) {
             // 1) "My Address" section
@@ -136,9 +141,21 @@ struct SendStableCoinView: View {
                         .foregroundColor(.gray)
 
                     HStack {
+                        // The amount TextField, with decimal keyboard
                         TextField("0.00", text: $presenter.amount)
                             .keyboardType(.decimalPad)
                             .textFieldStyle(.roundedBorder)
+                            .focused($amountFieldIsFocused)
+                            // Add a toolbar with "Done" to dismiss the keyboard
+                            .toolbar {
+                                ToolbarItemGroup(placement: .keyboard) {
+                                    Spacer()
+                                    Button("Done") {
+                                        // Unfocus the text field => dismiss keyboard
+                                        amountFieldIsFocused = false
+                                    }
+                                }
+                            }
 
                         Button {
                             showNetworkPicker = true
@@ -207,7 +224,7 @@ struct SendStableCoinView: View {
             .padding()
         }
         .padding()
-        .hideKeyboardOnTap()
+        .hideKeyboardOnTap() // Tap anywhere to dismiss keyboard
         // Present success screen when transaction completes
         .sheet(isPresented: $presenter.transactionCompleted) {
             SendStableCoinCompletedView(presenter: presenter)