From d1e0cec51894ffe1971a687740c91814eb5c998f Mon Sep 17 00:00:00 2001
From: Adam Cohen <adamcohen@google.com>
Date: Fri, 1 Jul 2016 16:55:30 -0700
Subject: Avoid unnecessary layout passes from insets callbacks if they haven't
 changed

Change-Id: Ia7560bd466ff47103811a1a1795af5a5a25abb59
---
 src/com/android/launcher3/InsettableFrameLayout.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/com/android/launcher3/InsettableFrameLayout.java b/src/com/android/launcher3/InsettableFrameLayout.java
index db4d85516..154641cab 100644
--- a/src/com/android/launcher3/InsettableFrameLayout.java
+++ b/src/com/android/launcher3/InsettableFrameLayout.java
@@ -43,6 +43,10 @@ public class InsettableFrameLayout extends FrameLayout implements
 
     @Override
     public void setInsets(Rect insets) {
+        // If the insets haven't changed, this is a no-op. Avoid unnecessary layout caused by
+        // modifying child layout params.
+        if (insets.equals(mInsets)) return;
+
         final int n = getChildCount();
         for (int i = 0; i < n; i++) {
             final View child = getChildAt(i);
-- 
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