From 556359437b7ddc01e9b3fe02e57393ba034cdd75 Mon Sep 17 00:00:00 2001
From: Mark Wei <markwei@google.com>
Date: Thu, 8 Dec 2016 11:30:18 -0800
Subject: [PATCH] Observer is now abstract class.

Reviewers: #material_motion, O6 Material Android platform reviewers, O2 Material Motion, featherless

Reviewed By: #material_motion, O6 Material Android platform reviewers, O2 Material Motion, featherless

Tags: #material_motion

Differential Revision: http://codereview.cc/D2176
---
 .../android/material/motion/streams/MotionObservable.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/src/main/java/com/google/android/material/motion/streams/MotionObservable.java b/library/src/main/java/com/google/android/material/motion/streams/MotionObservable.java
index 97ec63d..9aefd92 100644
--- a/library/src/main/java/com/google/android/material/motion/streams/MotionObservable.java
+++ b/library/src/main/java/com/google/android/material/motion/streams/MotionObservable.java
@@ -69,7 +69,7 @@ public MotionObservable(Subscriber<MotionObserver<T>> subscriber) {
   /**
    * An observer with an additional {@link #state(int)} method.
    */
-  public static abstract class MotionObserver<T> implements Observer<T> {
+  public static abstract class MotionObserver<T> extends Observer<T> {
 
     @Override
     public abstract void next(T value);