From 7f6254be43ead1a69e3b7d3cdb30a4be04933be6 Mon Sep 17 00:00:00 2001
From: Ram N <axe@fb.com>
Date: Wed, 3 Oct 2018 13:39:13 -0700
Subject: [PATCH] Cache the instance of `ChoreographerCompat`

Summary:
Since `ChoreographerCompat.getInstance()` is a singleton, we cache its instance.

This will be important in a subsequent diff where we ensure that `ChoreographerCompat.getInstance()` is only called on the UI thread

Reviewed By: achen1

Differential Revision: D9169298

fbshipit-source-id: 2067a50770dd41f5b1a12b62b6a9f8fea83d91e8
---
 .../react/testing/idledetection/ReactIdleDetectionUtil.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ReactAndroid/src/androidTest/java/com/facebook/react/testing/idledetection/ReactIdleDetectionUtil.java b/ReactAndroid/src/androidTest/java/com/facebook/react/testing/idledetection/ReactIdleDetectionUtil.java
index 2b95632c4f..c749cfef94 100644
--- a/ReactAndroid/src/androidTest/java/com/facebook/react/testing/idledetection/ReactIdleDetectionUtil.java
+++ b/ReactAndroid/src/androidTest/java/com/facebook/react/testing/idledetection/ReactIdleDetectionUtil.java
@@ -7,6 +7,7 @@
 
 package com.facebook.react.testing.idledetection;
 
+import android.view.Choreographer;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
@@ -55,7 +56,8 @@ public class ReactIdleDetectionUtil {
         new Runnable() {
           @Override
           public void run() {
-            ChoreographerCompat.getInstance().postFrameCallback(
+            final ChoreographerCompat choreographerCompat = ChoreographerCompat.getInstance();
+            choreographerCompat.postFrameCallback(
                 new ChoreographerCompat.FrameCallback() {
 
                   private int frameCount = 0;
@@ -66,7 +68,7 @@ public class ReactIdleDetectionUtil {
                     if (frameCount == waitFrameCount) {
                       latch.countDown();
                     } else {
-                      ChoreographerCompat.getInstance().postFrameCallback(this);
+                      choreographerCompat.postFrameCallback(this);
                     }
                   }
                 });