Bug 22941 - Slider inside ListView does not recognize gestures correctly
Summary: Slider inside ListView does not recognize gestures correctly
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 1.2.3
Hardware: PC Mac OS
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2014-09-12 12:31 UTC by m
Modified: 2015-05-27 00:18 UTC (History)
5 users (show)

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

Sample project to repro (4.35 KB, application/x-gzip)
2014-09-12 12:31 UTC, m

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Description m 2014-09-12 12:31:13 UTC
On iOS, putting Sliders inside a ListView (wrapped into ViewCells) does not work properly.

a) Sliders inside ListViews don't recognize touch orientation properly if the device is in landscape mode. Essentially the directions are swapped -- vertical gestures can move the horizontal sliders, horizontal gestures cannot. 

b) Sliders inside ListViews don't work on Retina resolutions -- value is set to Minimum if finger moves to the start of the slider; however, it moves twice as fast as it should if the finger moves to the right (and reaches maximum when the finger is at the middle of the slider).

Tested on actual iOS7.1 Retina iPad and on the simulator as well.
Comment 1 m 2014-09-12 12:31:39 UTC
Created attachment 8035 [details]
Sample project to repro
Comment 2 Sadik Ali 2014-09-15 08:12:11 UTC
I have checked this issue with given steps in bug description and getting the same behavior, The sliders is not working properly. I have checked this issue on simulator and device, And I am getting the same issue.

Screencast: http://screencast.com/t/YHsIhK0FN9
OutputLog: https://gist.github.com/anonymous/5a30c1aeb0eda19b0835
IDE Log: https://gist.github.com/anonymous/25483ee1d94b768551df

Environment Info:
=== Xamarin Studio ===

Version 5.3 (build 441)
Installation UUID: 1a096c6f-0678-402e-89b2-a2c10f7e80e4
	Mono 3.8.0 ((no/45d0ba1)
	GTK+ 2.24.23 (Raleigh theme)

	Package version: 308000009

=== Apple Developer Tools ===

Xcode 5.1 (5084)
Build 5B130a

=== Xamarin.iOS ===

Version: (Business Edition)
Hash: 77efa3f
Build date: 2014-08-26 07:59:55-0400

=== Xamarin.Android ===

Version: 4.16.0 (Business Edition)
Android SDK: /Users/360_macmini/Desktop/android-sdk-macosx
	Supported Android versions:
		2.1    (API level 7)
		2.2    (API level 8)
		2.3    (API level 10)
		3.1    (API level 12)
		3.2    (API level 13)
		4.0    (API level 14)
		4.0.3  (API level 15)
		4.1    (API level 16)
		4.2    (API level 17)
		4.3    (API level 18)
		4.4    (API level 19)
		4.4.87 (API level 20)
Java SDK: /usr
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)

=== Xamarin.Mac ===

Version: (Business Edition)

=== Build Information ===

Release ID: 503000441
Git revision: befb6aa1176d37a5f678f4274f340a0159091b7a
Build date: 2014-09-08 17:57:02-04
Xamarin addins: 6dc7c388e31fdfc8014689839d37de0d4622435c

=== Operating System ===

Mac OS X 10.9.4
Darwin ShrutiMac.local 13.3.0 Darwin Kernel Version 13.3.0
    Tue Jun  3 21:27:35 PDT 2014
    root:xnu-2422.110.17~1/RELEASE_X86_64 x86_64
Comment 3 m 2014-12-12 09:52:47 UTC
Any plans to fix this? Such a trivial bug in the slider implementation should not take half a year to fix..
Comment 4 Jason Smith [MSFT] 2015-05-27 00:18:28 UTC
Does not seem to be an issue on the latest versions of Forms