🚑 Fix example

blurhash/README.md

@@ -26,7 +26,7 @@ void blurHashEncode() async {
 }
 
 void blurHashDecode() async {
-  Uint8List imageDataBytes;
+  Uint8List? imageDataBytes;
   try {
     imageDataBytes = await BlurHash.decode(blurhash, 20, 12);
   } on PlatformException catch (e) {

blurhash/example/lib/blurhash_image.dart

@@ -7,25 +7,25 @@ import 'package:transparent_image/transparent_image.dart';
 
 class BlurHashImage extends StatefulWidget {
   BlurHashImage(
-      {Key key,
-      @required this.blurHash,
-      @required this.image,
+      {Key? key,
+      required this.blurHash,
+      required this.image,
       this.width,
       this.height,
       this.fit = BoxFit.cover})
       : super(key: key);
 
   final String blurHash;
   final String image;
-  final double width;
-  final double height;
+  final double? width;
+  final double? height;
   final BoxFit fit;
 
   _BlurHashImageState createState() => _BlurHashImageState();
 }
 
 class _BlurHashImageState extends State<BlurHashImage> {
-  Uint8List _imageDataBytes;
+  Uint8List? _imageDataBytes;
 
   @override
   void initState() {
@@ -34,7 +34,7 @@ class _BlurHashImageState extends State<BlurHashImage> {
   }
 
   Future blurHashDecode() async {
-    Uint8List imageDataBytes;
+    Uint8List? imageDataBytes;
 
     try {
       imageDataBytes = await BlurHash.decode(widget.blurHash, 32, 32);
@@ -56,7 +56,7 @@ class _BlurHashImageState extends State<BlurHashImage> {
               FractionallySizedBox(
                 widthFactor: 1,
                 child: Image.memory(
-                  _imageDataBytes,
+                  _imageDataBytes!,
                   width: widget.width,
                   height: widget.height,
                   fit: widget.fit,

blurhash/example/lib/home_page.dart

@@ -9,7 +9,7 @@ class HomePage extends StatefulWidget {
 }
 
 class HomePageState extends State<HomePage> {
-  Uint8List _imageDataBytes;
+  Uint8List? _imageDataBytes;
   TextEditingController _blurHashController =
       TextEditingController(text: "LEHV6nWB2yk8pyo0adR*.7kCMdnj");
 
@@ -27,7 +27,7 @@ class HomePageState extends State<HomePage> {
   }
 
   void blurHashDecode() async {
-    Uint8List imageDataBytes;
+    Uint8List? imageDataBytes;
     try {
       imageDataBytes = await BlurHash.decode(_blurHashController.text, 20, 12,
           useCache: false);
@@ -112,7 +112,7 @@ class HomePageState extends State<HomePage> {
                   : FractionallySizedBox(
                       widthFactor: 1,
                       child: Image.memory(
-                        _imageDataBytes,
+                        _imageDataBytes!,
                         fit: BoxFit.cover,
                       ),
                     ),

blurhash/example/pubspec.yaml

@@ -18,7 +18,7 @@ publish_to: "none" # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
   flutter:
@@ -27,7 +27,7 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.1
-  transparent_image: ^1.0.0
+  transparent_image: ^2.0.0
 
 dev_dependencies:
   flutter_test:

blurhash/example/test/widget_test.dart

@@ -11,17 +11,20 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:blurhash_example/main.dart';
 
 void main() {
-  testWidgets('Verify Platform version', (WidgetTester tester) async {
+  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
     // Build our app and trigger a frame.
     await tester.pumpWidget(MyApp());
 
-    // Verify that platform version is retrieved.
-    expect(
-      find.byWidgetPredicate(
-        (Widget widget) => widget is Text &&
-                           widget.data.startsWith('Running on:'),
-      ),
-      findsOneWidget,
-    );
+    // Verify that our counter starts at 0.
+    expect(find.text('0'), findsOneWidget);
+    expect(find.text('1'), findsNothing);
+
+    // Tap the '+' icon and trigger a frame.
+    await tester.tap(find.byIcon(Icons.add));
+    await tester.pump();
+
+    // Verify that our counter has incremented.
+    expect(find.text('0'), findsNothing);
+    expect(find.text('1'), findsOneWidget);
   });
 }

blurhash/pubspec.yaml

@@ -4,7 +4,7 @@ version: 1.0.0
 homepage: https://github.com/Raincal/blurhash/tree/master/blurhash
 
 environment:
-  sdk: ">=2.12.0-0 <3.0.0"
+  sdk: ">=2.12.0 <3.0.0"
   flutter: ">=1.24.0"
 
 dependencies: