t-artikov · May 13, 2019 15:37 · May 13, 2019
diff --git a/main.dart b/main.dart
@@ -0,0 +1,52 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+
+void main() => runApp(MyApp());
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: MyHomePage(),
+    );
+  }
+}
+
+double smooth(double value,
+    {duration = const Duration(milliseconds: 250), curve: Curves.easeInOut}) {
+  final controller = useAnimationController(
+    initialValue: value,
+    lowerBound: double.negativeInfinity,
+    upperBound: double.infinity,
+  );
+
+  useValueChanged(value, (_, __) {
+    controller.animateTo(value, duration: duration, curve: curve);
+  });
+
+  return useAnimation(controller);
+}
+
+class MyHomePage extends HookWidget {
+  @override
+  Widget build(BuildContext context) {
+    final counter = useState(0.0);
+
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('Hooks'),
+      ),
+      body: Center(
+        child: Text(
+          smooth(counter.value).toStringAsFixed(2),
+        ),
+      ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: () {
+          counter.value++;
+        },
+        child: Icon(Icons.add),
+      ),
+    );
+  }
+}