Merge pull request flutter#868 from apwilson/npe

Fix npe.
yhzhan1002 · Aug 26, 2015 · 79e8967 · 79e8967
2 parents 3a73fd6 + e2fdc2e
commit 79e8967
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/sky/packages/sky/lib/widgets/mimic.dart b/sky/packages/sky/lib/widgets/mimic.dart
@@ -98,7 +98,9 @@ class Mimic extends GlobalKeyWatcher {
   void _setMimicable(widget) {
     if (_mimicable != widget) {
       _stopMimic();
-      widget.startMimic();
+      if (widget != null) {
+        widget.startMimic();
+      }
     }
     setState(() {
       _mimicable = widget;