Bug 52166 - Inconsistent tap behaviour when using ScrollView on iOS
Summary: Inconsistent tap behaviour when using ScrollView on iOS
Alias: None
Product: Forms
Classification: Xamarin
Component: iOS ()
Version: 2.3.3
Hardware: Macintosh Mac OS
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2017-02-01 01:16 UTC by peter
Modified: 2017-12-07 01:11 UTC (History)
6 users (show)

Tags: ios scrollview ac
Is this bug a regression?: ---
Last known good build:

Sample Login Test Page (1.23 KB, application/zip)
2017-02-01 01:16 UTC, peter

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Description peter 2017-02-01 01:16:48 UTC
Created attachment 19673 [details]
Sample Login Test Page

Tap on button does not work when user scrolls page up.

I am using ScrollView on a LoginPage (sample page attached)

1. LoginPage XAML
Login Page contains
 - Logo (120x120)
 - Username Entry and Password Entry
 - SignIn Button

When soft keyboard is visible and view is scrolled up so that ScrollY > 90
Click Handler or Command on SignInButton does not fire, soft keyboard is dismissed.

If user scrolls view so that ScrollY < 90
Click Handler fires and soft keyboard is dismissed

Button should always work if visible to the user.
Comment 1 peteybird 2017-12-07 01:11:46 UTC
I too am experiencing this issue. I tried using the fix suggested here https://forums.xamarin.com/discussion/72586/no-feedback-when-tap-a-button-inside-a-scrollview-only-click-gives-feedback-ios

but I couldn't get that to work despite the renderer firing as expected. Seemed to have no effect.

My layout:

Did you ever find a work around for this?