From 48bb5b7926452e2b138000c3d06a075273efbd90 Mon Sep 17 00:00:00 2001
From: Ian Hickson <ian@hixie.ch>
Date: Fri, 9 Mar 2018 22:49:19 -0800
Subject: [PATCH] Include opacity in FadeTransition logging (#15073)

---
 packages/flutter/lib/src/widgets/animated_cross_fade.dart | 6 +++---
 packages/flutter/lib/src/widgets/transitions.dart         | 6 ++++++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/packages/flutter/lib/src/widgets/animated_cross_fade.dart b/packages/flutter/lib/src/widgets/animated_cross_fade.dart
index 58bb65d022..539485879d 100644
--- a/packages/flutter/lib/src/widgets/animated_cross_fade.dart
+++ b/packages/flutter/lib/src/widgets/animated_cross_fade.dart
@@ -247,13 +247,13 @@ class _AnimatedCrossFadeState extends State<AnimatedCrossFade> with TickerProvid
   Animation<double> _initAnimation(Curve curve, bool inverted) {
     Animation<double> animation = new CurvedAnimation(
       parent: _controller,
-      curve: curve
+      curve: curve,
     );
 
     if (inverted) {
       animation = new Tween<double>(
-          begin: 1.0,
-          end: 0.0
+        begin: 1.0,
+        end: 0.0,
       ).animate(animation);
     }
 
diff --git a/packages/flutter/lib/src/widgets/transitions.dart b/packages/flutter/lib/src/widgets/transitions.dart
index 9d2d4099ae..c41f22a9a2 100644
--- a/packages/flutter/lib/src/widgets/transitions.dart
+++ b/packages/flutter/lib/src/widgets/transitions.dart
@@ -332,6 +332,12 @@ class FadeTransition extends SingleChildRenderObjectWidget {
     renderObject
       ..opacity = opacity;
   }
+
+  @override
+  void debugFillProperties(DiagnosticPropertiesBuilder description) {
+    super.debugFillProperties(description);
+    description.add(new DiagnosticsProperty<Animation<double>>('opacity', opacity));
+  }
 }
 
 /// An interpolation between two relative rects.