Bug 39175 - Scrolling ListView causes Android app to crash
Summary: Scrolling ListView causes Android app to crash
Alias: None
Product: Forms
Classification: Xamarin
Component: Android ()
Version: 2.0.1
Hardware: PC Mac OS
: Normal normal
Target Milestone: ---
Assignee: Samantha Houts [MSFT]
Depends on:
Reported: 2016-02-26 23:08 UTC by Cody Beyer (MSFT)
Modified: 2017-06-19 21:19 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Cody Beyer (MSFT) 2016-02-26 23:08:28 UTC
# Description

While scrolling through a ListView in the linked sample, an exception will be thrown and the app will crash

# Sample


# Application Output from Crashed Result


# Steps to Reproduce

1. Download sample
2. Deploy to Android emulator
3. Scroll up-and-down through the list view quickly 

# Expected Results

Scrolling through the list view should happen without issue

# Actual Results

An error is thrown

# Versions

=== Xamarin Studio ===

Version 6.0 (build 4520)
Installation UUID: d7a38e41-c4bc-4e56-bded-2161e738f80e
	Mono 4.3.2 (mono-4.3.2-branch/ba2e5e4) (64-bit)
	GTK+ 2.24.23 (Raleigh theme)

	Package version: 403020467

=== Xamarin.Profiler ===

Not Installed

=== Apple Developer Tools ===

Xcode 7.2.1 (9548.1)
Build 7C1002

=== Xamarin.iOS ===

Version: (Business Edition)
Hash: 962a050
Branch: master
Build date: 2016-01-29 16:59:11-0500

=== Xamarin.Android ===

Version: (Business Edition)
Android SDK: /Users/codybeyer/Library/Developer/Xamarin/android-sdk-macosx
	Supported Android versions:
		4.0.3 (API level 15)
		4.4   (API level 19)
		6.0   (API level 23)

SDK Tools Version: 24.4.1
SDK Platform Tools Version: 23.0.1
SDK Build Tools Version: 23.0.1

Java SDK: /usr
java version "1.7.0_71"
Java(TM) SE Runtime Environment (build 1.7.0_71-b14)
Java HotSpot(TM) 64-Bit Server VM (build 24.71-b01, mixed mode)

=== Xamarin Android Player ===

Version: 0.6.5
Location: /Applications/Xamarin Android Player.app

=== Xamarin.Mac ===

Version: (Business Edition)

=== Build Information ===

Release ID: 600004520
Git revision: a354b2cb9df4b96f50b0ccb960dbdd5a9155510c
Build date: 2016-02-18 14:52:07-05
Xamarin addins: 8e54979f23feee160d245a3c33e43e77779b1eb4
Build lane: monodevelop-lion-master

=== Operating System ===

Mac OS X 10.11.3
Darwin clb-macbook.local 15.3.0 Darwin Kernel Version 15.3.0
	Thu Dec 10 18:40:58 PST 2015
	root:xnu-3248.30.4~1/RELEASE_X86_64 x86_64
Comment 1 David 2016-02-29 23:25:33 UTC
I'm just adding my name to this bug tracking system.
Comment 2 David 2016-03-13 06:20:40 UTC
Seems like there is no update on this at this moment, right?
Comment 3 Samantha Houts [MSFT] 2016-03-18 22:50:25 UTC
Hmm. I have tried this both on device and on the Xamarin Android Player with Nexus 7 Lollipop, and I have been unable to reproduce the issue with the attached sample app. Is there a particular emulator or device that you are using when you experience this issue?

Comment 4 David 2016-03-22 17:24:04 UTC
Xperia Z1 among other devices, I was able to reproduce the issue without difficulties, just scroll up/down very quick and you will see it.
Comment 5 Chris King 2017-06-19 17:22:17 UTC
Assigned to you as you were last to request additional info.
Comment 6 Samantha Houts [MSFT] 2017-06-19 21:19:59 UTC
Unfortunately, we’re unable to reproduce this report. If this issue is still occurring for you, please reopen this issue and attach a reproduction to the bug by starting with a clean Xamarin.Forms project adding just the code necessary to demonstrate the issue. 
Here are some reproduction best practices: https://gist.github.com/jassmith/92405c300e54a01dcc6d