Scrollable should use scrollTo() when starting an animation

sky/framework/components/scrollable.dart

Index: sky/framework/components/scrollable.dart
diff --git a/sky/framework/components/scrollable.dart b/sky/framework/components/scrollable.dart
index 0bbe0e55c4eb6ae20fc64300f935a4befd7c2448..6bc7829beaad18690ae0d918f88c62104c4d405f 100644
--- a/sky/framework/components/scrollable.dart
+++ b/sky/framework/components/scrollable.dart
@@ -69,11 +69,7 @@ abstract class Scrollable extends Component {
     _simulation = scrollBehavior.release(particle);
     if (_simulation == null)
       return;
-    _simulation.onTick.listen((_) {
-      setState(() {
-        _scrollOffset = particle.position;
-      });
-    });
+    _simulation.onTick.listen((_) {scrollTo(particle.position);});

[Hixie, 2015/04/14 16:52:30]

Keep it on three lines or use the => form.

   }
 
   Particle _createParticle([double velocity = 0.0]) {