Add trigger logger for handling errors in Flutter

lib/main.dart

@@ -7,12 +7,15 @@ import 'package:tmail_ui_user/main/bindings/main_bindings.dart';
 import 'package:tmail_ui_user/main/localizations/app_localizations_delegate.dart';
 import 'package:tmail_ui_user/main/pages/app_pages.dart';
 import 'package:tmail_ui_user/main/routes/app_routes.dart';
+import 'package:tmail_ui_user/main/utils/app_logger.dart';
 
 void main() async {
-  WidgetsFlutterBinding.ensureInitialized();
+  initLogger(() async {
-  await MainBindings().dependencies();
+    WidgetsFlutterBinding.ensureInitialized();
-  await HiveCacheConfig().setUp();
+    await MainBindings().dependencies();
-  runApp(TMailApp());
+    await HiveCacheConfig().setUp();
+    runApp(TMailApp());
+  });
 }
 
 class TMailApp extends StatelessWidget {

lib/main/utils/app_logger.dart

@@ -0,0 +1,34 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+_Dispatcher logHistory = _Dispatcher("");
+
+void log(String? value) {
+  String v = value ?? "";
+  logHistory.value = v + "\n" + logHistory.value;
+  if (kReleaseMode == false) {
+    print(v);
+  }
+}
+
+void logError(String? value) => log("[ERROR] " + (value ?? ""));
+
+// Take from: https://flutter.dev/docs/testing/errors
+void initLogger(VoidCallback runApp) {
+  runZonedGuarded(() async {
+    WidgetsFlutterBinding.ensureInitialized();
+    FlutterError.onError = (FlutterErrorDetails details) {
+      FlutterError.dumpErrorToConsole(details);
+      logError(details.stack.toString());
+    };
+    runApp.call();
+  }, (Object error, StackTrace stack) {
+    logError(stack.toString());
+  });
+}
+
+class _Dispatcher extends ValueNotifier<String> {
+  _Dispatcher(String value) : super(value);
+}