[Bug] Cannot able to restrict the horizontal bouncing in Xamarin.Forms.iOS

[BalasubramaniSundaram]

Description

Hi Team We at Syncfusion develop data visualization controls for Xamarin and we have more than 90 controls spread across all platforms of Xamarin. Please refer the below link for a description about us. UserGuide: https://help.syncfusion.com/xamarin/sfdatagrid/overview FeatureTour: https://www.syncfusion.com/products/xamarin UserGuide:https://help.syncfusion.com/xamarin/sflistview/getting-started

Issue

• We having a custom view control which is derived for the Xamarin.Platform.iOS.ScrollViewRenderer on that we trying to restrict the horizontal bouncing in Xamarin.Forms.iOS
• But we weren't able to achieve the solution after initialized these properties also ScrollViewRenderer.Bounce = true; ScrollViewRenderer.AlwaysHorizontalBounce= false; ScrollViewRenderer.AlwaysVerticalBounce = true; ScrollViewRenderer.directionLockedEnable = true;

Steps to Reproduce

1. Run the attached sample
2. Just try to do bounce in horizontal
3. I have set followed properties in the Renderer class in iOS platforms. ScrollViewRenderer.Bounce = true; ScrollViewRenderer.AlwaysHorizontalBounce= false; ScrollViewRenderer.AlwaysVerticalBounce = true; ScrollViewRenderer.directionLockedEnable = true;
4. It will bounce in horizontall

Expected Behavior

Horizontal bouncing shouldn't to happen

Actual Behavior

Horizontal bouncing still happening after we restricted

Basic Information

• Version with issue: 3.6.0.293080
• Last known good version: None
• IDE: Visual Studio Mac
• Platform Target Frameworks:
  • iOS: IPad Pro 10.5 inch version: 11.1
• Nuget Packages: 3.6.0.293080
• Affected Devices: All iOS device

Screenshots

Reproduction Link

horizontalBouncing Video.zip

XAMARINIOS_2777.zip

[GalaxiaGuy]

I believe that is intended behavior on iOS.

AlwaysBounceHorizontal does not control whether bouncing can happen, but whether bouncing must happen. It is used to force bouncing to occur even when the content is smaller than than the scrollview and has no effect otherwise.

https://developer.apple.com/documentation/uikit/uiscrollview/1619393-alwaysbouncehorizontal

If this property is set to true and bounces is true, horizontal dragging is allowed even if the content is smaller than the bounds of the scroll view. The default value is false.

[BalasubramaniSundaram]

Hi @GalaxiaGuy, Thanks for the documentation reference, In the documentation, they have mentioned that to enable force bouncing in a horizontal direction, we need to set the value of AlwaysBounceHorizontal and Bounces value as 'True'. However, our horizontal content exceeds the actual screen size which enables the scrolling in a horizontal direction. Thus without forcing, the content bounces in a horizontal direction when reaching the end. Is there any way to disable this behavior without disabling the bounce in the vertical direction?

Regards, Balasubramani Sundaram.

[BalasubramaniSundaram]

Hi @samhouts, Any Update on this ?

Regards Balasubramani Sundaram.

[BalasubramaniSundaram]

Hi Team, Any Update?

Regards, @BalasubramaniSundaram

[BalasubramaniSundaram]

Hi Team, Any Update.

Regards, @BalasubramaniSundaram

[vimal1994]

Hi @samhouts ,

Could you update on this ?

[samhouts]

This is on the backlog. Given our current set of priorities, we expect to begin working on this in early November. Thank you for your patience!