From b45f124a041adf81b3ac8b8dec6b396e751e92d7 Mon Sep 17 00:00:00 2001
From: Romain Guy <>
Date: Tue, 24 Mar 2009 21:30:00 -0700
Subject: [PATCH] Automated import from
 //branches/donutburger/...@142129,142129

---
 core/java/android/widget/ListView.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/java/android/widget/ListView.java b/core/java/android/widget/ListView.java
index 4d5032ea3129f..7e30f7ba68d2d 100644
--- a/core/java/android/widget/ListView.java
+++ b/core/java/android/widget/ListView.java
@@ -1393,6 +1393,11 @@ public class ListView extends AbsListView {
                 resetList();
                 invokeOnItemScrollListener();
                 return;
+            } else if (mItemCount != mAdapter.getCount()) {
+                throw new IllegalStateException("The content of the adapter has changed but "
+                        + "ListView did not receive a notification. Make sure the content of "
+                        + "your adapter is not modified from a background thread, but only "
+                        + "from the UI thread.");
             }
 
             setSelectedPositionInt(mNextSelectedPosition);