From a2a8d7f5da93ee10cf5eccfb944f581f43cfe0c0 Mon Sep 17 00:00:00 2001
From: Don Yu <don@instagram.com>
Date: Wed, 17 Aug 2016 22:07:33 -0700
Subject: [PATCH] Fix onItemSelected firing for ReactPicker on initial layout.

Reviewed By: AaaChiuuu

Differential Revision: D3732557

fbshipit-source-id: ed031dbf205996dab8cb0555af972e6f26c0d202
---
 .../java/com/facebook/react/views/picker/ReactPicker.java     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ReactAndroid/src/main/java/com/facebook/react/views/picker/ReactPicker.java b/ReactAndroid/src/main/java/com/facebook/react/views/picker/ReactPicker.java
index 2871cd212..a5e4a12b7 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/views/picker/ReactPicker.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/views/picker/ReactPicker.java
@@ -79,6 +79,10 @@ public class ReactPicker extends Spinner {
 
   public void setOnSelectListener(@Nullable OnSelectListener onSelectListener) {
     if (getOnItemSelectedListener() == null) {
+      // onItemSelected gets fired immediately after layout because checkSelectionChanged() in
+      // AdapterView updates the selection position from the default INVALID_POSITION. To match iOS
+      // behavior, we don't want the event emitter for onItemSelected to fire right after layout.
+      mSuppressNextEvent = true;
       setOnItemSelectedListener(
           new OnItemSelectedListener() {
             @Override