bringing support for previous version of flutter sdk for flutter_mobx

flutter_mobx/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.0.6
+
+- Adding support for previous versions of Flutter SDK
+
 ## 2.0.5+1
 
 - Package upgrades

flutter_mobx/lib/flutter_mobx.dart

@@ -42,4 +42,4 @@ export 'package:flutter_mobx/src/stateful_observer_widget.dart';
 export 'package:flutter_mobx/src/stateless_observer_widget.dart';
 
 /// The version as per `pubspec.yaml`
-const version = '2.0.5+1';
+const version = '2.0.6';

flutter_mobx/lib/src/observer_widget_mixin.dart

@@ -1,7 +1,6 @@
 import 'package:flutter/scheduler.dart';
 import 'package:flutter/widgets.dart';
 import 'package:mobx/mobx.dart';
-
 // ignore: implementation_imports
 import 'package:mobx/src/core.dart' show ReactionImpl;
 
@@ -89,7 +88,8 @@ mixin ObserverElementMixin on ComponentElement {
 
     // if there's a current frame,
     // ignore: unnecessary_non_null_assertion
-    final schedulerPhase = SchedulerBinding.instance.schedulerPhase;
+    final schedulerPhase =
+        _ambiguate(SchedulerBinding.instance)!.schedulerPhase;
     final shouldWait =
         // surely, `idle` is ok
         schedulerPhase != SchedulerPhase.idle &&
@@ -128,7 +128,7 @@ mixin ObserverElementMixin on ComponentElement {
       );
     }
 
-    // This "throw" is better than a "LateInitializationError" 
+    // This "throw" is better than a "LateInitializationError"
     // which confused the user. Please see #780 for details.
     if (built == null) {
       throw Exception(
@@ -145,3 +145,11 @@ mixin ObserverElementMixin on ComponentElement {
     super.unmount();
   }
 }
+
+/// This allows a value of type T or T?
+/// to be treated as a value of type T?.
+///
+/// We use this so that APIs that have become
+/// non-nullable can still be used with `!` and `?`
+/// to support older versions of the API as well.
+T? _ambiguate<T>(T? value) => value;

flutter_mobx/pubspec.yaml

@@ -2,7 +2,7 @@ name: flutter_mobx
 description:
   Flutter integration for MobX. It provides a set of Observer widgets that automatically rebuild
   when the tracked observables change.
-version: 2.0.5+1
+version: 2.0.6
 
 homepage: https://github.com/mobxjs/mobx.dart
 

mobx/CHANGELOG.md

@@ -1,4 +1,4 @@
-## 2.0.7+1
+## 2.0.7+1 - 2.0.7+2
 
 - Package upgrades
 

mobx/lib/mobx.dart

@@ -65,4 +65,4 @@ export 'package:mobx/src/core.dart'
 export 'package:mobx/src/core/atom_extensions.dart';
 
 /// The current version as per `pubspec.yaml`
-const version = '2.0.7+1';
+const version = '2.0.7+2';

mobx/pubspec.yaml

@@ -1,11 +1,11 @@
 name: mobx
-version: 2.0.7+1
+version: 2.0.7+2
 description: "MobX is a library for reactively managing the state of your applications. Use the power of observables, actions, and reactions to supercharge your Dart and Flutter apps."
 
 homepage: https://github.com/mobxjs/mobx.dart
 
 environment:
-  sdk: '>=2.13.0 <3.0.0'
+  sdk: '>=2.17.0 <3.0.0'
 
 dependencies:
   meta: ^1.3.0
@@ -16,5 +16,5 @@ dev_dependencies:
   coverage: ^1.0.1
   fake_async: ^1.2.0
   lints: ^2.0.0
-  mocktail: ^0.2.0
+  mocktail: ^0.3.0
   test: ^1.17.0

mobx/test/intercept_test.dart

@@ -88,7 +88,7 @@ void main() {
         ..add((_) => null)
         ..interceptChange(WillChangeNotification());
 
-      verify(() => context.untracked(any()));
+      verifyNever(() => context.untracked(any()));
     });
   });
 }

mobx/test/listenable_test.dart

@@ -27,7 +27,7 @@ void main() {
       Listeners(context)
         ..add((_) {})
         ..notifyListeners(ChangeNotification());
-      verify(() => context.untracked(any()));
+      verifyNever(() => context.untracked(any()));
     });
 
     test('asserts for null notifications', () {