Bug 29000 - Unable to disable scrolling on a ScrollView
Summary: Unable to disable scrolling on a ScrollView
Alias: None
Product: Forms
Classification: Xamarin
Component: Android ()
Version: 1.4.2
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2015-04-10 17:42 UTC by Mohammed El-Serougi
Modified: 2015-04-13 15:30 UTC (History)
1 user (show)

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

Test project. (4.70 MB, application/zip)
2015-04-13 12:21 UTC, Mohammed El-Serougi

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Description Mohammed El-Serougi 2015-04-10 17:42:04 UTC
It seems you can't disable scrolling on a ScrollView when using the Android APIs through a custom renderer. The ScrollView contains a StackLayout and is scrolling fine, completely ignoring the code below: 

public class CustomScrollViewRenderer : ScrollViewRenderer
        public override bool OnTouchEvent (MotionEvent e)
            //return base.OnTouchEvent (e);
            return false;

        public override bool OnInterceptTouchEvent (MotionEvent ev)
            //return base.OnInterceptTouchEvent (ev);
            return false;
Comment 1 Jonathan Pryor 2015-04-13 10:58:00 UTC
@Mohammed: Is ScrollViewRenderer a Xamarin.Forms type?

Could you please attach a complete sample and repro instructions?
Comment 2 Mohammed El-Serougi 2015-04-13 12:21:08 UTC
Created attachment 10740 [details]
Test project.

Yes, ScrollView is Xamarin Forms own, custom rendered to provide an option for disabling scrolling. You only need to run it on an Android emulator and you'll see the issue.
Comment 3 Mohammed El-Serougi 2015-04-13 15:30:36 UTC
I don't think this is an issue anymore. If I return true from OnInterceptTouchEvent then scrolling is disabled.