Merge pull request #437 from cypherstack/xmr_bugs

send from exchange fix

lib/pages/exchange_view/exchange_step_views/step_4_view.dart

@@ -579,7 +579,7 @@ class _Step4ViewState extends ConsumerState<Step4View> {
                                                 time,
                                               ]);
 
-                                              final txData = results.last
+                                              final txData = results.first
                                                   as Map<String, dynamic>;
 
                                               if (!wasCancelled) {

lib/pages/wallet_view/wallet_view.dart

@@ -44,6 +44,7 @@ import 'package:stackwallet/utilities/enums/coin_enum.dart';
 import 'package:stackwallet/utilities/enums/derive_path_type_enum.dart';
 import 'package:stackwallet/utilities/enums/wallet_balance_toggle_state.dart';
 import 'package:stackwallet/utilities/logger.dart';
+import 'package:stackwallet/utilities/show_loading.dart';
 import 'package:stackwallet/utilities/text_styles.dart';
 import 'package:stackwallet/utilities/theme/stack_colors.dart';
 import 'package:stackwallet/widgets/background.dart';
@@ -260,11 +261,6 @@ class _WalletViewState extends ConsumerState<WalletView> {
   void _onExchangePressed(BuildContext context) async {
     final coin = ref.read(managerProvider).coin;
 
-    final currency = ExchangeDataLoadingService.instance.isar.currencies
-        .where()
-        .tickerEqualToAnyExchangeNameName(coin.ticker)
-        .findFirstSync();
-
     if (coin.isTestNet) {
       await showDialog<void>(
         context: context,
@@ -273,6 +269,15 @@ class _WalletViewState extends ConsumerState<WalletView> {
         ),
       );
     } else {
+      final currency = await showLoading(
+        whileFuture: ExchangeDataLoadingService.instance.isar.currencies
+            .where()
+            .tickerEqualToAnyExchangeNameName(coin.ticker)
+            .findFirst(),
+        context: context,
+        message: "Loading...",
+      );
+
       if (mounted) {
         unawaited(
           Navigator.of(context).pushNamed(

lib/utilities/show_loading.dart

@@ -0,0 +1,42 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:stackwallet/utilities/theme/stack_colors.dart';
+import 'package:stackwallet/widgets/custom_loading_overlay.dart';
+
+Future<T> showLoading<T>({
+  required Future<T> whileFuture,
+  required BuildContext context,
+  required String message,
+  String? subMessage,
+  bool isDesktop = false,
+}) async {
+  unawaited(
+    showDialog<void>(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => WillPopScope(
+        onWillPop: () async => false,
+        child: Container(
+          color: Theme.of(context)
+              .extension<StackColors>()!
+              .overlay
+              .withOpacity(0.6),
+          child: CustomLoadingOverlay(
+            message: message,
+            subMessage: subMessage,
+            eventBus: null,
+          ),
+        ),
+      ),
+    ),
+  );
+
+  final result = await whileFuture;
+
+  if (context.mounted) {
+    Navigator.of(context, rootNavigator: isDesktop).pop();
+  }
+
+  return result;
+}