ui: amount content transition animation

Author: reez

BDKSwiftExampleWallet/View Model/Send/BuildTransactionViewModel.swift

@@ -17,7 +17,6 @@ class BuildTransactionViewModel {
     var calculateFee: String?
     var psbt: Psbt?
     var showingBuildTransactionViewErrorAlert = false
-    var transactionSentSuccessfully = false
 
     init(
         bdkClient: BDKClient = .live
@@ -72,7 +71,6 @@ class BuildTransactionViewModel {
     func send(address: String, amount: UInt64, feeRate: UInt64) {
         do {
             try bdkClient.send(address, amount, feeRate)
-            self.transactionSentSuccessfully = true
             NotificationCenter.default.post(
                 name: Notification.Name("TransactionSent"),
                 object: nil

BDKSwiftExampleWallet/View/Send/AmountView.swift

@@ -24,6 +24,8 @@ struct AmountView: View {
                 VStack(spacing: 4) {
                     Text("\(numpadAmount.formattedWithSeparator) sats")
                         .textStyle(BitcoinTitle1())
+                        .contentTransition(.numericText())
+                        .animation(.default, value: numpadAmount)
                     if let balance = viewModel.balanceTotal {
                         HStack(spacing: 2) {
                             Text(balance.delimiter)