example: Use provider package

moor_flutter/example/lib/main.dart

@@ -1,31 +1,15 @@
 import 'package:flutter/material.dart';
 import 'package:moor_example/bloc.dart';
+import 'package:provider/provider.dart';
 import 'widgets/homescreen.dart';
 
 void main() => runApp(MyApp());
 
-class MyApp extends StatefulWidget {
-  @override
-  MyAppState createState() {
-    return MyAppState();
-  }
-}
-
-// We use this widget to set up the material app and provide an InheritedWidget that
-// the rest of this simple app can then use to access the database
-class MyAppState extends State<MyApp> {
-  TodoAppBloc bloc;
-
-  @override
-  void initState() {
-    bloc = TodoAppBloc();
-    super.initState();
-  }
-
+class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    return BlocProvider(
-      bloc: bloc,
+    return Provider(
+      create: (_) => TodoAppBloc(),
       child: MaterialApp(
         title: 'moor Demo',
         theme: ThemeData(
@@ -42,17 +26,3 @@ class MyAppState extends State<MyApp> {
     );
   }
 }
-
-class BlocProvider extends InheritedWidget {
-  final TodoAppBloc bloc;
-
-  BlocProvider({@required this.bloc, Widget child}) : super(child: child);
-
-  @override
-  bool updateShouldNotify(BlocProvider oldWidget) {
-    return oldWidget.bloc != bloc;
-  }
-
-  static TodoAppBloc provideBloc(BuildContext ctx) =>
-      (ctx.inheritFromWidgetOfExactType(BlocProvider) as BlocProvider).bloc;
-}

moor_flutter/example/lib/widgets/add_category_dialog.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
-import 'package:moor_example/main.dart';
+import 'package:moor_example/bloc.dart';
+import 'package:provider/provider.dart';
 
 class AddCategoryDialog extends StatefulWidget {
   @override
@@ -49,7 +50,7 @@ class _AddCategoryDialogState extends State<AddCategoryDialog> {
 
   void _addEntry() {
     if (_controller.text.isNotEmpty) {
-      BlocProvider.provideBloc(context).addCategory(_controller.text);
+      Provider.of<TodoAppBloc>(context).addCategory(_controller.text);
       Navigator.of(context).pop();
     }
   }

moor_flutter/example/lib/widgets/categories_drawer.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:moor_example/bloc.dart';
-import 'package:moor_example/main.dart';
 import 'package:moor_example/widgets/add_category_dialog.dart';
+import 'package:provider/provider.dart';
 
 class CategoriesDrawer extends StatelessWidget {
   @override
@@ -22,7 +22,7 @@ class CategoriesDrawer extends StatelessWidget {
           ),
           Flexible(
             child: StreamBuilder<List<CategoryWithActiveInfo>>(
-              stream: BlocProvider.provideBloc(context).categories,
+              stream: Provider.of<TodoAppBloc>(context).categories,
               builder: (context, snapshot) {
                 final categories = snapshot.data ?? <CategoryWithActiveInfo>[];
 
@@ -70,7 +70,7 @@ class _CategoryDrawerEntry extends StatelessWidget {
     }
 
     final isActive = entry.isActive;
-    final bloc = BlocProvider.provideBloc(context);
+    final bloc = Provider.of<TodoAppBloc>(context);
 
     final rowContent = [
       Text(

moor_flutter/example/lib/widgets/homescreen.dart

@@ -2,9 +2,9 @@ import 'package:flutter/material.dart' hide Column;
 import 'package:flutter/widgets.dart' as f show Column;
 import 'package:moor_example/bloc.dart';
 import 'package:moor_example/database/database.dart';
-import 'package:moor_example/main.dart';
 import 'package:moor_example/widgets/categories_drawer.dart';
 import 'package:moor_example/widgets/todo_card.dart';
+import 'package:provider/provider.dart';
 
 // ignore_for_file: prefer_const_constructors
 
@@ -20,7 +20,7 @@ class HomeScreenState extends State<HomeScreen> {
   // we only use this to reset the input field at the bottom when a entry has been added
   final TextEditingController controller = TextEditingController();
 
-  TodoAppBloc get bloc => BlocProvider.provideBloc(context);
+  TodoAppBloc get bloc => Provider.of<TodoAppBloc>(context);
 
   @override
   Widget build(BuildContext context) {

moor_flutter/example/lib/widgets/todo_card.dart

@@ -1,8 +1,9 @@
 import 'package:flutter/material.dart';
+import 'package:moor_example/bloc.dart';
 import 'package:moor_example/database/database.dart';
-import 'package:moor_example/main.dart';
 import 'package:intl/intl.dart';
 import 'package:moor_example/widgets/todo_edit_dialog.dart';
+import 'package:provider/provider.dart';
 
 final DateFormat _format = DateFormat.yMMMd();
 
@@ -65,7 +66,7 @@ class TodoCard extends StatelessWidget {
               onPressed: () {
                 // We delete the entry here. Again, notice how we don't have to call setState() or
                 // inform the parent widget. The animated list will take care of this automatically.
-                BlocProvider.provideBloc(context).deleteEntry(entry);
+                Provider.of<TodoAppBloc>(context).deleteEntry(entry);
               },
             )
           ],

moor_flutter/example/lib/widgets/todo_edit_dialog.dart

@@ -1,7 +1,8 @@
 import 'package:flutter/material.dart';
+import 'package:moor_example/bloc.dart';
 import 'package:moor_example/database/database.dart';
 import 'package:intl/intl.dart';
-import 'package:moor_example/main.dart';
+import 'package:provider/provider.dart';
 
 final _dateFormat = DateFormat.yMMMd();
 
@@ -95,7 +96,7 @@ class _TodoEditDialogState extends State<TodoEditDialog> {
               targetDate: _dueDate,
             );
 
-            BlocProvider.provideBloc(context).updateEntry(entry);
+            Provider.of<TodoAppBloc>(context).updateEntry(entry);
             Navigator.pop(context);
           },
         ),

moor_flutter/example/pubspec.yaml

@@ -9,8 +9,8 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  intl:
-  cupertino_icons: ^0.1.2
+  provider: ^3.2.0
+  intl: ^0.16.0
   rxdart: 0.21.0
   moor_flutter: ^2.0.0